MINIMED INC
10-Q, 1999-05-17
ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES
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<PAGE>   1
 
- --------------------------------------------------------------------------------
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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                            ------------------------
 
                                   FORM 10-Q
 
                            ------------------------
 
(MARK ONE)
 
     [X]   QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
        SECURITIES EXCHANGE ACT OF 1934
 
                  FOR THE QUARTERLY PERIOD ENDED APRIL 2, 1999
 
                                       OR
 
     [ ]   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
        SECURITIES EXCHANGE ACT OF 1934
 
         FOR THE TRANSITION PERIOD FROM ____________ TO ____________ .
 
                         COMMISSION FILE NUMBER 0-26268
 
                                  MINIMED INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                           <C>
                  DELAWARE                                     95-4408171
       (STATE OR OTHER JURISDICTION OF                      (I.R.S. EMPLOYER
        INCORPORATED OR ORGANIZATION)                      IDENTIFICATION NO.)
</TABLE>
 
                   12744 SAN FERNANDO ROAD, SYLMAR, CA 91342
              (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES) (ZIP CODE)
 
       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (818) 362-5958
 
                            ------------------------
 
Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15 of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports) and (2) has been subject to such filing
requirements for the past 90 days.  Yes [X]  No [ ]
 
   Indicate the number of shares outstanding of each of the issuer's classes
              of common stock, as of the latest practicable date:
 
<TABLE>
<S>                                            <C>
             TITLE OF EACH CLASS                        OUTSTANDING AT MAY 12, 1999
              ------------------                        ---------------------------
         COMMON STOCK, $.01 PAR VALUE                            28,351,696
</TABLE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2
 
                                     INDEX
 
                                  MINIMED INC.
 
<TABLE>
<CAPTION>
                                                                       PAGE
                                                                       ----
<S>      <C>                                                           <C>
                       PART I. FINANCIAL INFORMATION
Item 1.  Consolidated Financial Statements and Notes.................    3
         Consolidated Balance Sheets -- January 1, 1999 and April 2,
         1999 (Unaudited)............................................    3
         Consolidated Statements of Income (Unaudited) -- Three
         months ended April 3, 1998 and April 2, 1999................    4
         Consolidated Statements of Cash Flows (Unaudited) -- Three
         months ended April 3, 1998 and April 2, 1999................    5
         Notes to Consolidated Financial Statements (Unaudited)......    6
Item 2.  Management's Discussion and Analysis of Financial Condition
         and Results of Operations...................................    9
Item 3.  Quantitative and Qualitative Disclosures About Market
         Risk........................................................   16
 
                        PART II. OTHER INFORMATION
Item 1.  Legal Proceedings...........................................   16
Item 2.  Changes in Securities and Use of Proceeds...................   16
Item 3.  Defaults Upon Senior Securities.............................   17
Item 4.  Submission of Matters to a Vote of Security Holders.........   17
Item 5.  Other Information...........................................   17
Item 6.  Exhibits and Reports on Form 8-K............................   17
SIGNATURE............................................................   18
INDEX TO EXHIBITS....................................................   19
</TABLE>
 
                                        2
<PAGE>   3
 
                         PART I. FINANCIAL INFORMATION
 
ITEM 1. CONSOLIDATED FINANCIAL STATEMENTS AND NOTES
 
                                  MINIMED INC.
 
                          CONSOLIDATED BALANCE SHEETS
                       JANUARY 1, 1999 AND APRIL 2, 1999
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                  1998            1999
                                                              ------------    ------------
                                                                              (UNAUDITED)
<S>                                                           <C>             <C>
CURRENT ASSETS:
  Cash and cash equivalents.................................  $ 27,303,000    $ 21,418,000
  Short-term investments....................................    13,476,000      13,482,000
  Accounts receivable, net of allowance for doubtful
     accounts of $8,844,000 and $8,481,000 at January 1,
     1999 and April 2, 1999, respectively...................    38,788,000      40,245,000
  Inventories...............................................    16,860,000      17,681,000
  Deferred income taxes.....................................     6,404,000       6,485,000
  Prepaid expenses and other current assets.................     3,835,000       7,082,000
                                                              ------------    ------------
          Total current assets..............................   106,666,000     106,393,000
NOTE RECEIVABLE FROM AFFILIATE..............................     3,600,000       3,600,000
LONG-TERM INVESTMENTS.......................................     4,826,000       5,140,000
OTHER ASSETS................................................    11,522,000      11,367,000
LAND, BUILDINGS, PROPERTY AND EQUIPMENT -- Net..............    31,038,000      34,400,000
                                                              ------------    ------------
TOTAL ASSETS................................................  $157,652,000    $160,900,000
                                                              ============    ============
 
                           LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
  Current portion of notes payable and line of credit.......     1,101,000         882,000
  Accounts payable..........................................     5,447,000       5,747,000
  Accrued salaries and related benefits.....................     5,231,000       3,838,000
  Accrued sales commissions.................................     2,260,000         573,000
  Accrued warranties........................................     2,828,000       2,885,000
  Income taxes payable......................................     1,155,000       2,014,000
  Other accrued expenses....................................     3,873,000       2,955,000
                                                              ------------    ------------
          Total current liabilities.........................    21,895,000      18,894,000
                                                              ------------    ------------
  Deferred Tax Liabilities..................................       865,000         984,000
  Notes payable.............................................     1,059,000       1,000,000
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
  Common stock, par value $.005; 40,000,000 shares
     authorized; 28,095,274 and 28,207,356 shares issued and
     outstanding as of January 1, 1999 and April 2, 1999,
     respectively...........................................       143,000         147,000
  Additional capital........................................   111,826,000     114,088,000
  Accumulated other comprehensive income....................       738,000         879,000
  Retained earnings.........................................    21,126,000      24,908,000
                                                              ------------    ------------
          Total stockholders' equity........................   133,833,000     140,022,000
                                                              ------------    ------------
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY..................  $157,652,000    $160,900,000
                                                              ============    ============
</TABLE>
 
                See notes to consolidated financial statements.
 
                                        3
<PAGE>   4
 
                                  MINIMED INC.
 
                       CONSOLIDATED STATEMENTS OF INCOME
     THREE MONTHS ENDED APRIL 3, 1998 AND THREE MONTHS ENDED APRIL 2, 1999
 
<TABLE>
<CAPTION>
                                                                 1998           1999
                                                              -----------    -----------
                                                                     (UNAUDITED)
<S>                                                           <C>            <C>
NET SALES...................................................  $26,366,000    $40,911,000
COST OF SALES...............................................    9,784,000     13,838,000
                                                              -----------    -----------
GROSS PROFIT................................................   16,582,000     27,073,000
                                                              ===========    ===========
OPERATING EXPENSES:
Selling, general and administrative.........................   11,391,000     17,499,000
Research and development....................................    3,317,000      5,296,000
Research and development contract income....................   (1,500,000)    (1,500,000)
                                                              -----------    -----------
          Total operating expenses..........................   13,208,000     21,295,000
                                                              ===========    ===========
OPERATING INCOME............................................    3,374,000      5,778,000
OTHER INCOME, Including interest income.....................      291,000        294,000
                                                              -----------    -----------
INCOME BEFORE INCOME TAXES..................................    3,665,000      6,072,000
PROVISION FOR INCOME TAXES..................................    1,361,000      2,290,000
                                                              -----------    -----------
NET INCOME..................................................  $ 2,304,000    $ 3,782,000
                                                              ===========    ===========
BASIC EARNINGS PER SHARE....................................  $      0.09    $      0.13
                                                              ===========    ===========
BASIC WEIGHTED AVERAGE SHARES OUTSTANDING...................   26,562,000     28,148,000
                                                              ===========    ===========
DILUTED EARNINGS PER SHARE..................................  $      0.08    $      0.13
                                                              ===========    ===========
DILUTED WEIGHTED AVERAGE SHARES OUTSTANDING.................   27,854,000     30,024,000
                                                              ===========    ===========
</TABLE>
 
                 See notes to consolidated financial statement.
 
                                        4
<PAGE>   5
 
                                  MINIMED INC.
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
     THREE MONTHS ENDED APRIL 3, 1998 AND THREE MONTHS ENDED APRIL 2, 1999
 
<TABLE>
<CAPTION>
                                                                 1998           1999
                                                              -----------    -----------
                                                                     (UNAUDITED)
<S>                                                           <C>            <C>
CASH FLOWS FROM OPERATING ACTIVITIES --
Net income..................................................  $ 2,304,000    $ 3,782,000
Adjustments to reconcile net income to net cash provided by
  (used in) operating activities:
  Depreciation and amortization.............................    1,053,000      1,560,000
  Directors fees paid in common stock.......................           --         32,000
  Deferred income taxes.....................................     (558,000)       (81,000)
  Tax benefit from exercise of non-qualified stock
     options................................................           --      1,630,000
  Changes in operating assets and liabilities:
     Accounts receivable, net...............................    1,477,000     (1,457,000)
     Inventories............................................   (1,602,000)      (821,000)
     Prepaid expenses and other current assets..............      384,000     (3,247,000)
     Other assets...........................................      (47,000)        35,000
     Accounts payable.......................................   (2,495,000)       300,000
     Income taxes payable...................................    1,438,000        859,000
     Accrued expenses.......................................   (5,153,000)    (3,941,000)
                                                              -----------    -----------
     Net cash used in operating activities..................   (3,199,000)    (1,349,000)
                                                              -----------    -----------
CASH FLOWS FROM INVESTING ACTIVITIES --
  Short-term investments....................................   14,081,000         (6,000)
  Acquisition of Dartec A.B.................................   (2,544,000)            --
  Purchase of land, buildings, property and equipment.......   (3,393,000)    (4,724,000)
                                                              -----------    -----------
  Net cash provided by (used in) investing activities.......    8,144,000     (4,730,000)
                                                              -----------    -----------
CASH FLOWS FROM FINANCING ACTIVITIES --
  Repayment of notes payable................................   (2,811,000)      (278,000)
  Proceeds from stock option exercises......................           --        525,000
                                                              -----------    -----------
  Net cash provided by (used in) financing activities.......   (2,811,000)       247,000
                                                              -----------    -----------
  Effect of foreign exchange rates on cash..................      147,000        (53,000)
NET INCREASE (DECREASE) IN CASH AND CASH
  EQUIVALENTS...............................................    2,281,000     (5,885,000)
CASH AND CASH EQUIVALENTS, BEGINNING OF
  PERIOD....................................................   22,282,000     27,303,000
                                                              -----------    -----------
CASH AND CASH EQUIVALENTS, END OF PERIOD....................  $24,563,000    $21,418,000
                                                              ===========    ===========
SUPPLEMENTAL CASH FLOW INFORMATION --
  Cash paid during the period for:
  Interest..................................................  $    35,000    $     2,000
  Income taxes..............................................  $   461,000    $   265,000
</TABLE>
 
SUPPLEMENTAL DISCLOSURE OF NONCASH FINANCING ACTIVITY -- The Company recorded an
unrealized holding gain of $195,000 during the three months ended April 2, 1999
and an unrealized holding loss of $997,000 during the three months ended April
3, 1998, net of estimated income taxes on marketable securities classified as
long-term investments available for sale.
 
                See notes to consolidated financial statements.
 
                                        5
<PAGE>   6
 
                                  MINIMED INC.
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
     THREE MONTHS ENDED APRIL 3, 1998 AND THREE MONTHS ENDED APRIL 2, 1999
 
     The fiscal years referenced herein are as follows:
 
<TABLE>
<CAPTION>
                   FISCAL YEAR                        YEAR ENDED
                   -----------                     -----------------
<S>                                                <C>
1999.............................................  December 31, 1999
1998.............................................    January 1, 1999
</TABLE>
 
NOTE 1. BASIS OF PRESENTATION
 
     The accompanying unaudited financial statements of MiniMed Inc. (the
"Company" or "MiniMed") have been prepared in accordance with generally accepted
accounting principles for interim financial information and with the
instructions to Form 10-Q and Regulation S-X. Accordingly, they do not include
all of the information and footnotes required by generally accepted accounting
principles for complete financial statements. In the opinion of management, all
normal, recurring adjustments considered necessary for a fair presentation have
been included. The financial statements should be read in conjunction with the
audited financial statements included in the Annual Report of MiniMed filed on
Form 10-K with the Securities and Exchange Commission for the year ended January
1, 1999. The results of operations for the three months ended April 2, 1999 are
not necessarily indicative of the results that may be expected for the fiscal
year ending December 31, 1999.
 
     On March 15, 1999, the Company announced a 2-for-1 stock split, in the form
of a stock dividend, to holders of record of MiniMed's common stock at the close
of business on April 1, 1999. In accordance with SFAS 128, "Earnings per Share,"
the Company has recorded the effects of this stock split on share and per share
amounts at April 2, 1999 and all prior periods have been restated.
 
NOTE 2. INCOME TAXES
 
     Net income and earnings per share for the three months ended April 3, 1998
and April 2, 1999 reflect income taxes which have been recorded at the Company's
estimated effective tax rate for the year. This estimated income tax rate has
been determined by giving consideration to the pretax earnings and losses
applicable to foreign and domestic tax jurisdictions.
 
NOTE 3. WEIGHTED AVERAGE NUMBER OF COMMON AND COMMON EQUIVALENT SHARES
OUTSTANDING
 
     In accordance with Statement of Financial Accounting Standards No. 128,
"Earnings Per Share" (SFAS 128), basic earnings per share for the three months
ended April 3, 1998 and April 2, 1999, were computed by dividing net income by
weighted average common shares outstanding during the periods presented. Diluted
earnings per share for the periods presented were computed by dividing net
income by weighted average common and common equivalent shares outstanding,
computed in accordance with the treasury stock method. The computation of basic
and diluted EPS is as follows:
 
<TABLE>
<CAPTION>
                                                  THREE MONTHS ENDED    THREE MONTHS ENDED
                                                    APRIL 3, 1998         APRIL 2, 1999
                                                  ------------------    ------------------
<S>                                               <C>                   <C>
BASIC EPS COMPUTATION
Numerator:
Net income applicable to common stock...........     $ 2,304,000           $ 3,782,000
Denominator:
Weighted average common shares outstanding......      26,562,000            28,148,000
                                                     -----------           -----------
Basic earnings per share........................     $      0.09           $      0.13
                                                     ===========           ===========
</TABLE>
 
                                        6
<PAGE>   7
                                  MINIMED INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
     THREE MONTHS ENDED APRIL 3, 1998 AND THREE MONTHS ENDED APRIL 2, 1999
 
<TABLE>
<CAPTION>
                                                  THREE MONTHS ENDED    THREE MONTHS ENDED
                                                    APRIL 3, 1998         APRIL 2, 1999
                                                  ------------------    ------------------
<S>                                               <C>                   <C>
DILUTED EPS COMPUTATION
Numerator:
Net income applicable to common stock...........     $ 2,304,000           $ 3,782,000
                                                     -----------           -----------
Denominator:
Weighted average common shares outstanding......      26,562,000            28,148,000
Effect of dilutive securities:
  Stock options.................................       1,292,000             1,876,000
                                                     -----------           -----------
Diluted weighted average shares outstanding.....      27,854,000            30,024,000
                                                     -----------           -----------
Diluted earnings per share......................     $      0.08           $      0.13
                                                     ===========           ===========
</TABLE>
 
NOTE 4. CONSOLIDATED BALANCE SHEET COMPONENTS
 
     Certain balance sheet components are as follows:
 
<TABLE>
<CAPTION>
                                                   JANUARY 1,       APRIL 2,
                                                      1999            1999
                                                   -----------    ------------
                                                                  (UNAUDITED)
<S>                                                <C>            <C>
Inventories:
  Raw materials..................................  $ 7,064,000    $  7,672,000
  Work-in-progress...............................    3,040,000       2,328,000
  Finished Goods.................................    6,756,000       7,681,000
                                                   -----------    ------------
                                                   $16,860,000    $ 17,681,000
                                                   ===========    ============
Property, plant and equipment:
  Land, buildings and improvements...............  $13,244,000    $ 14,500,000
  Machinery and equipment........................   17,332,000      18,845,000
  Tooling and molds..............................    2,352,000       2,359,000
  Computer software..............................    1,989,000       2,682,000
  Furniture and fixtures.........................    5,301,000       6,569,000
                                                   -----------    ------------
                                                    40,218,000      44,955,000
Less accumulated depreciation....................   (9,180,000)    (10,555,000)
                                                   -----------    ------------
Total............................................  $31,038,000    $ 34,400,000
                                                   ===========    ============
Other assets:
  Technology license.............................  $   145,000    $    133,000
  Goodwill.......................................   11,114,000      10,994,000
  Other..........................................      263,000         240,000
                                                   -----------    ------------
Total............................................  $11,522,000    $ 11,367,000
                                                   ===========    ============
Long-term investments:
  Investment in Trimeris common stock -- at fair
     value.......................................  $ 3,686,000    $  4,000,000
  Investment in PDC common stock -- at cost......    1,140,000       1,140,000
                                                   -----------    ------------
Total............................................  $ 4,826,000    $  5,140,000
                                                   ===========    ============
</TABLE>
 
                                        7
<PAGE>   8
                                  MINIMED INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
     THREE MONTHS ENDED APRIL 3, 1998 AND THREE MONTHS ENDED APRIL 2, 1999
 
NOTE 5. COMPREHENSIVE INCOME
 
     The Company's total comprehensive income was as follows:
 
<TABLE>
<CAPTION>
                                                                    THREE MONTHS ENDED
                                                              ------------------------------
                                                              APRIL 3, 1998    APRIL 2, 1999
                                                              -------------    -------------
<S>                                                           <C>              <C>
Net income..................................................   $2,304,000       $3,782,000
Other comprehensive income (loss):
  Foreign currency translation adjustments..................      147,000          (54,000)
  Unrealized gain (loss) on securities......................   (1,608,000)         314,000
                                                               ----------       ----------
  Other comprehensive income (loss), before income taxes....   (1,461,000)         260,000
  Income tax expense (benefit) related to items of other
     comprehensive income (loss)............................     (611,000)         119,000
                                                               ----------       ----------
  Other comprehensive income (loss).........................     (850,000)         141,000
                                                               ----------       ----------
Total comprehensive income..................................   $1,454,000       $3,923,000
                                                               ==========       ==========
</TABLE>
 
NOTE 6. COMMITMENTS AND CONTINGENCIES
 
     On September 11, 1996, the Company filed an action against Fimed, Inc.
("Fimed") seeking rescission of a product distribution contract. Subsequent to
the filing of this action, Fimed filed a counterclaim seeking compensatory
damages of approximately $400 million plus punitive damages. The Company
believes that it has meritorious defenses to the counterclaims asserted by
Fimed. The Court appointed a retired Judge to act as an Independent Expert
pursuant to California law to evaluate, assuming liability, the amount of
damages, if any, sustained by Fimed. The hearing on this matter was held in
February 1999. Fact discovery pertaining to the litigation has been largely
completed. Trial in this matter is currently set to commence September 1999. The
Company has been pursuing its claims and is defending against Fimed's claims
vigorously.
 
     During 1998, the Company integrated the operations of Home Medical Supply,
Inc. and its affiliated companies ("HMS"), which the Company acquired in fiscal
1997. In connection with these activities, the Company discovered certain
business practices relating to charges billed to the State of Florida for health
care services provided through an affiliated pharmacy. These practices were
implemented by HMS' prior owners and may potentially result in liability to the
Company. The Company has received no notice of any action which is pending or
threatened against it in connection therewith. The Company has corrected such
practices, notified the State of Florida authorities of its findings, initiated
legal action against the prior owners to seek indemnification for any such
liability and is pursuing other legal remedies. The amount of liability to the
Company, if any, cannot be determined at this time, although the Company
believes that indemnification for such liability would be available from HMS'
prior owners.
 
     On February 9, 1999, the Company was served with a complaint, filed in
Louisiana, by Diabetes Resources, Inc. (d/b/a Insulin Infusion Specialties)
("IIS"), a former authorized distributor for MiniMed products, alleging various
causes of action against the Company. IIS entered into an Educational Dealer
Agreement (the "Agreement") with MiniMed in July 1997. MiniMed elected to not
renew the Agreement and the Agreement expired pursuant to its terms as of
December 31, 1998. IIS is alleging that MiniMed engaged in unfair competition,
breached the Agreement, violated applicable trade secret laws and defamed IIS.
IIS did not specify the amount of damages it is seeking in its complaint. On
April 6, 1999, the Company filed a counterclaim alleging IIS breached the
Agreement and carried on various unfair trade practices. The Company believes
that its counterclaims and its defenses to the claims asserted by IIS are
meritorious. Discovery in this litigation is in its preliminary stages.
 
     During the normal course of business, the Company may be subject to
litigation involving various business matters. Management believes that an
adverse outcome of any such known matters would not have a material adverse
impact on the Company.
 
                                        8
<PAGE>   9
 
ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS
 
     The following discussion of the financial condition and results of
operations of MiniMed Inc. ("MiniMed" or the "Company") should be read in
conjunction with the consolidated financial statements and the related notes
thereto incorporated by reference herein. Any statements contained herein
regarding MiniMed that are forward looking, including statements relating to
anticipated operating results, growth, financial resources, capital
requirements, adequacy of the Company's capital resources, trends in spending on
research and development, the development of new markets, the development,
regulatory approval, manufacture, distribution, and commercial acceptance of new
products and new applications for MiniMed's existing product lines are made
pursuant to the Safe Harbor provisions of the Private Securities Litigation
Reform Act of 1995. Investors are cautioned that forward-looking statements
involve risks and uncertainties which may affect the Company's business and
prospects, including changes in economic and market conditions, acceptance of
MiniMed's products by the health care and reimbursement communities, health care
legislation and regulation, new developments in diabetes therapy, administrative
and regulatory approval and related considerations, competitive developments,
maintenance of strategic alliances and other factors discussed in the Company's
filings with the Securities and Exchange Commission.
 
GENERAL
 
     The Company's sales and profits have been generated primarily through the
sale of external pumps and related disposable products used to deliver insulin
in the intensive management of diabetes. Additionally, through its acquisitions
of HMS and Dartec in fiscal 1997 and Diabetes Support Systems, Inc. ("DSS") in
fiscal 1998, the Company has broadened its product offerings to its customers to
include other diabetes supplies and pharmacy products generally used in the
treatment of this disease. The Company distributes these products nationally.
 
     Product development and manufacturing operations have focused on three
product lines: external insulin pumps and related disposables, implantable
insulin pumps and continuous glucose monitoring systems. Future development of
the external pump and disposable product line will focus upon improving the
existing technology for its current use in diabetes treatment and the
utilization of this technology for the treatment of other medical conditions.
There have been no sales of glucose monitoring systems to date; however, on
February 26, 1999, the Company received a unanimous recommendation for approval
of the first generation of that product from an Advisory Panel to the Food and
Drug Administration ("FDA") subject to certain conditions. The Company intends
to initiate sales activity for this product line after final FDA approval is
received. The Company's continuous glucose monitoring system's technology has
been characterized as a first of its kind, and commercialization will be subject
to successful implementation of manufacturing, sales, marketing and
reimbursement plans. Management anticipates that this will occur by mid-1999. On
September 1, 1998, the Company sold assets and transferred technology related to
its implantable pump program to Medical Research Group, LLC ("MRG"). The Company
has retained exclusive distribution rights to the implantable pump product line
for specific medical conditions, including diabetes. Sales of the implantable
pump have been and will continue to be irregular until full regulatory approval
is obtained.
 
                                        9
<PAGE>   10
 
RESULTS OF OPERATIONS
 
     The following table sets forth, for the three months ended April 2, 1999
and the three months ended April 3, 1998, the percentage relationship to net
sales of certain items in the Company's consolidated statements of operations
and the percentage changes in the dollar amounts of such items on a comparative
basis.
 
<TABLE>
<CAPTION>
                                                            PERCENTAGE OF NET SALES
                                                         ------------------------------
                                                         THREE MONTHS     THREE MONTHS     PERCENTAGE
                                                             ENDED            ENDED         INCREASE
                                                         APRIL 2, 1999    APRIL 3, 1998    (DECREASE)
                                                         -------------    -------------    ----------
<S>                                                      <C>              <C>              <C>
Net sales..............................................      100.0%           100.0%          55.2%
Cost of sales..........................................       33.8             37.1           41.4
                                                             -----            -----           ----
Gross profit...........................................       66.2             62.9           63.3
Operating expenses
  Selling, general and administrative..................       42.8             43.2           53.6
  Research and development.............................       12.9             12.6           59.7
  Research and development contract revenue............       (3.7)            (5.7)             0
                                                             -----            -----           ----
          Total operating expenses.....................       52.0             50.1           61.2
                                                             -----            -----           ----
Operating income.......................................       14.2%            12.8%          71.3%
                                                             =====            =====           ====
</TABLE>
 
     The following table sets forth domestic and international net sales and
gross profits related to the Company's primary product lines for the three
months ended April 2, 1999 and for the three months ended April 3, 1998.
 
<TABLE>
<CAPTION>
                                             DOLLARS IN THOUSANDS                 % OF NET SALES
                                        ------------------------------    ------------------------------
                                        THREE MONTHS     THREE MONTHS     THREE MONTHS     THREE MONTHS
                                            ENDED            ENDED            ENDED            ENDED
                                        APRIL 2, 1999    APRIL 3, 1998    APRIL 2, 1999    APRIL 3, 1998
                                        -------------    -------------    -------------    -------------
<S>                                     <C>              <C>              <C>              <C>
DIABETES PRODUCTS:
  External pumps and related
     disposables
     Domestic.........................     $34,275          $19,336            83.8%            73.3%
     International....................       3,436            2,756             8.4             10.5
                                           -------          -------           -----            -----
          Subtotal....................      37,711           22,092            92.2             83.8
  Implantable insulin pumps...........         147              221             0.4              0.8
  Other diabetes supplies.............       1,882            1,020             4.6              3.9
                                           -------          -------           -----            -----
          Total diabetes products.....      39,740           23,333            97.2             88.5
  Pharmacy products...................       1,171            3,033             2.8             11.5
                                           -------          -------           -----            -----
          Total net Sales.............     $40,911          $26,366           100.0%           100.0%
                                           =======          =======           =====            =====
GROSS PROFITS
Diabetes products:
  External pumps and related
     disposables......................     $26,378          $15,966            64.5%            60.6%
  Implantable pumps...................        (199)            (596)           (0.5)            (2.3)
  Other diabetes supplies.............         502              491             1.2              1.9
                                           -------          -------           -----            -----
          Total diabetes products.....      26,681           15,861            65.2             60.2
  Pharmacy products...................         392              721             1.0              2.7
                                           -------          -------           -----            -----
          Total gross profits.........     $27,073          $16,582            66.2%            62.9%
                                           =======          =======           =====            =====
</TABLE>
 
                                       10
<PAGE>   11
 
THREE MONTHS ENDED APRIL 2, 1999 AND APRIL 3, 1998
 
NET SALES
 
     Net sales increased 55.2% during the three months ended April 2, 1999 over
the three months ended April 3, 1998 to $40,911,000 from $26,366,000. This
increase is primarily the result of an increase of 70.7%, or $15,619,000 in the
sales volume of external pumps and related disposables. Domestic sales of these
products grew 77.3% or $14,939,000 in the first quarter of 1999 as compared to
the first quarter of 1998, while international sales increased 24.7% or $680,000
during the same period. The domestic net sales growth was derived primarily from
increased volume of external pumps and related disposables combined with an
increase in average prices realized on external pump sales. The higher domestic
external pump price resulted from an increase in the list price for the latest
generation external pump during the second quarter of 1998, combined with the
continued shift of sales by the Company through its direct sales organization
rather than through its independent dealers, which receive discounts on these
products. International sales of external pumps and related disposable products
grew primarily due to greater sales volumes of external pumps, while pricing of
external pumps in the international market remained consistent with the
comparable quarter of 1998. Domestic and international pricing for disposable
products did not change materially from the first quarter of 1998 to the first
quarter of 1999.
 
     Sales of implantable pumps decreased 33.5% or $74,000 from the first
quarter of 1998 to the first quarter of 1999, as regulatory approval for the
implantable pump and special insulin utilized in the implantable system is still
pending. Although the Company received certification under the applicable
directives issued by the European Union (the "EU") and received the CE Mark in
March 1995 for the implantable pump (permitting commercial sale throughout the
EU), separate approval from the EU is required for commercial sale of the
insulin. No assurance can be given as to when such approval will be received, if
at all. Sales of implantable pumps to date have been generated mainly in
connection with clinical trials and compassionate use of the pumps. The
implantable pump and the special insulin remain subject to regulatory review and
approval in the United States. No assurance can be given as to when such
approvals will be received, if at all.
 
     Sales of other diabetes supplies increased by 84.5% or $862,000 during the
1999 first quarter compared to the 1998 first quarter. This increase resulted
from overall market growth combined with the addition of sales of these products
by DSS, which was acquired by the Company during the fourth quarter of 1998.
Average sales prices have decreased for these products due to reimbursement
trends. Pharmaceutical product sales decreased 61.4% or $1,862,000 during the
1999 first quarter compared to the 1998 first quarter. The pharmacy operation
historically distributed products to treat a number of medical conditions,
including diabetes, HIV/ AIDS and renal failure. The 1999 sales decrease
resulted primarily from the Company's continued narrowing and restructuring of
the pharmacy operations to better support MiniMed's current activities and to
better position the Company for future opportunities.
 
OPERATING RESULTS
 
     Cost of Sales and Gross Profits -- Cost of sales increased 41.4% during the
three months ended April 2, 1999 over the three months ended April 3, 1998 to
$13,838,000 from $9,784,000. As a percentage of net sales, cost of sales in the
1999 first quarter decreased to 33.8% from 37.1% in the comparable period of
1998. Gross margins on external pumps and disposables decreased to 69.9% of such
sales during the 1999 first quarter, compared to 72.3% for this product line
during the 1998 first quarter. The decline in gross margins on these products is
primarily the result of increased spending to identify alternate supply channels
of raw material components used in the Company's external pumps and to certify
vendors for MiniMed's quality criteria. The effects of this increased spending
on vendor identification and certification on external pump gross margins was
partially offset by an increase in average selling prices for external pumps.
Disposable gross margins were consistent between the first quarter of 1998 and
the first quarter of 1999. The Company has continued to purchase certain
disposable products from a contract manufacturer rather than manufacturing these
products through its internal manufacturing operations.
 
     The Company's gross profits continue to be adversely impacted by the
implantable pump product line due to continued limited sales prior to full
commercial release. However, implantable pump gross margins
 
                                       11
<PAGE>   12
 
improved during the 1999 first quarter compared to the comparable period in 1998
due to the transfer of implantable pump manufacturing operations to Medical
Research Group, Inc. ("MRG") on September 1, 1998. The Company expects this
improvement in margins to continue in the short-term as a result of the MRG
transaction; however, long-term margins may be reduced due to the transfer of
the manufacturing operation to MRG, as MiniMed's role has been converted to an
exclusive distributor of this product. MiniMed is required to purchase
implantable pump units from MRG at negotiated prices, is obligated to purchase
minimum quantities in 1999, 2000 and 2001 and must purchase minimum quantities
in future periods in order to preserve its exclusivity. Future minimum purchase
commitments for implantable pump units based upon current prices are:
 
<TABLE>
<S>                                               <C>
1999............................................  $ 3,980,000
2000............................................    7,604,000
2001............................................    8,935,000
                                                  -----------
Total...........................................  $20,519,000
                                                  ===========
</TABLE>
 
     Gross margins for other diabetes supplies decreased to 26.7% of such sales
during the first quarter of 1999 compared to 48.1% of such sales during the
comparable period in 1998. This decrease was due to the continued effects of
lower average sales prices due to reimbursement trends. Gross profits on
pharmaceutical products decreased 45.6% to $392,000 during the first quarter of
1999, compared to $721,000 during the first quarter of 1998. This decrease was
primarily due to the continued restructuring of the pharmacy operations as
described above. Gross margins on pharmaceutical products, however, as a
percentage of such sales, increased to 33.5% during the first quarter of 1999
compared to 23.8% during the first quarter of 1998.
 
     Operating Expenses -- Selling, general and administrative expenses
increased 53.6% during the three months ended April 2, 1999 over the three
months ended April 3, 1998 to $17,499,000 from $11,391,000. As a percentage of
net sales, these expenses decreased to 42.8% during the 1999 first quarter from
43.2% during the 1998 first quarter. Selling and marketing expenses increased
primarily due to increased sales volumes, which led to increased sales
commissions and other variable field sales costs. Also, the Company continued to
increase expenditures to expand its overall international presence, particularly
in Germany. General and administrative expenses also rose during the three
months ended April 2, 1999 over the three months ended April 3, 1998 due to
costs associated with staff increases necessary to support the Company's
increased business activities.
 
     Research and development expenses grew 59.7% during the three months ended
April 2, 1999 over the three months ended April 3, 1998 to $5,296,000 from
$3,317,000. As a percentage of sales, research and development expenses
increased to 12.9% during the three months ended April 2, 1999 from 12.6% during
the comparable period in 1998. The 1999 first quarter increase in research and
development costs resulted from greater resources directed to the development of
continuous glucose monitoring systems, start-up manufacturing operations of the
continuous glucose monitoring systems, development of future generation external
insulin pumps and related disposable products and data communication
capabilities for external pumps and continuous glucose monitoring systems. The
Company anticipates that research and development expenditures for future
periods will continue to increase as more of its new technological innovations
approach commercialization.
 
     During the 1998 first quarter, the Company signed a research and
development contract with American Medical Instruments, Inc. ("AMI"), a member
of The Marmon Group of Companies. Under terms of the agreement, and subject to
the achievement of quarterly performance milestones, the Company can receive up
to $12.0 million in funding, payable in quarterly installments of $1.5 million,
for two research and development projects. Subject to payment of royalties to
AMI, the Company will have the right to sell products utilizing the technology
developed pursuant to the agreement on a world-wide basis, with the exception of
Japan. The Company also has the right to purchase the technologies developed at
prices ranging from an aggregate of $13.5 million to $19.0 million during
certain periods through April 30, 2002. During each of the first quarter 1998
and 1999, the Company recorded $1.5 million from this research and development
contract as a reduction of operating expenses, as costs related to completion of
the contractual obligations will be included in research and development
expense.
 
                                       12
<PAGE>   13
 
     Other -- During the three months ended April 2, 1999 and the three months
ended April 3, 1998, other income consisted primarily of interest income
generated from the Company's cash, cash equivalents, and short-term investment
balances.
 
     The Company's effective tax rate during the three months ended April 2,
1999 and April 3, 1998 has been computed giving consideration to the pretax
earnings and losses applicable to the Company's foreign and domestic tax
jurisdictions. Inflation has not significantly impacted the Company's results of
operations for the past two years.
 
LIQUIDITY AND CAPITAL RESOURCES
 
     The Company used cash in operations of $1,349,000 and $3,199,000 during the
three months ended April 2, 1999 and the three months ended April 3, 1998,
respectively. Cash flow from operations improved during the first quarter of
1999 compared to the first quarter of 1998 primarily due to a reduction in cash
expenditures on various accounts payable and accrued expenses. During the first
quarter of 1998, the Company used cash to retire approximately $3,356,000 in
current liabilities related to the HMS acquisition. The improvement in operating
cash flow in the first quarter of 1999 was partially offset by increases in
inventory and accounts receivable balances during such period. The Company has
begun to increase finished goods inventory levels to support the historically
higher sales volumes experienced in the third and fourth quarters. Additionally,
the Company experienced a significant increase in accounts receivable caused
primarily by the Company's continuing shift to selling direct to patients
through its in-house sales organization rather than through independent dealers.
This sales shift has led to a significant increase in accounts receivable
balances due from third party payors, which are generally realized over a longer
payment cycle.
 
     The increase in capital expenditures in the first quarter of 1999 to
$4,724,000 compared to $3,393,000 spent during the comparable period in 1998,
resulted primarily from building glucose sensor manufacturing capacity, as well
as other building improvements to service growth, manufacturing expansion,
research and development engineering equipment, information systems requirements
and some initial outlays for the new corporate headquarters. The Company
anticipates that future capital expenditures will continue to increase to
support the Company's new product activities and to build the infrastructure
necessary to accommodate the Company's anticipated growth. During the first
quarter of 1998, the Company used approximately $2.5 million of cash to complete
its acquisition of Dartec A.B., a Scandinavian distributor. The Company also
used cash of approximately $2.8 million and $278,000 to retire some existing
debt related to the HMS operations during the first quarter of 1998 and the
first quarter of 1999, respectively.
 
     The Company is finalizing a financing transaction pursuant to which it will
construct a corporate headquarters, research and development and manufacturing
facility on the campus of California State University, Northridge, the first
phase of which will be financed with a $65.0 million credit transaction. The
Company expects the transaction to be structured as a synthetic lease financing
for this facility and, in a related transaction, is obtaining a revolving line
of credit to borrow up to $15 million. In connection with these financing
transactions, the Company will pledge substantially all of its assets as
collateral security, and to be subject to various affirmative and negative
covenants regarding the conduct of its business. These arrangements could
adversely affect the Company's ability to obtain additional capital or acquire
additional capital resources. The synthetic lease will have a term of five
years, with two one-year renewal options. The underlying ground lease has a term
of 40 years with renewal options for up to an additional 40 years. Under these
arrangements, the Company will be committed to annual payments ranging from $4.5
million to $5.0 million commencing sometime during the second half of 2000.
Additionally, the Company is committed to payments of $400,000 during 1999 and
to average annual payments in future periods of approximately $450,000, plus
periodic cost of living adjustments, per the terms of the ground lease for the
Northridge property. These lease payments will be recorded as rent expense in
future periods.
 
     Management expects that the current level of cash and cash equivalents will
be sufficient to meet its needs for working capital and capital expenditures for
at least one year. However, the requirements for additional capital and working
capital are subject to change and will depend upon numerous factors, including
the level of capital expenditures, research and development activities and
results, competitive and technologi-
 
                                       13
<PAGE>   14
 
cal developments, health care reimbursement trends, and the availability for
acquisition by the Company of complementary additional distribution channels,
products, and technologies, and the development of the next phase of the
Company's facilities.
 
YEAR 2000 COMPLIANCE
 
     The Year 2000 problem ("Y2K") refers to the potential of all electronic
devices containing microprocessors to improperly calculate dates in and beyond
the year 2000. In the second quarter of 1998, the Company formed a Year 2000
Oversight Committee (the "Committee") to evaluate the Company's position
regarding Y2K. The Committee consists of members representing all of the major
operating and administrative departments within the Company including
information technology, facilities, manufacturing, research and development,
regulatory, quality assurance, materials, finance and accounting and legal.
 
     The Committee established an Action Plan Program (the "Plan") to facilitate
the Company's Y2K compliance and minimize the potential effects of Y2K on the
Company's operations. The components of the plan include the following steps:
(1) assess Y2K compliance of the Company's products; (2) inventory Company
equipment and software (including non-information systems equipment and
software) and prioritize according to critical business functions; (3) implement
Y2K compliance testing and remediation according to priorities developed; (4)
assess vendor and health care payor compliance; (5) develop and implement
policies to maintain Y2K compliance going forward; and (6) establish contingency
plans. A timetable for the completion of each of these action steps contained in
the Plan has been developed by the Committee. The Committee meets regularly to
assess the Company's efforts to comply with the Plan and to address any
outstanding Y2K issues. The Committee is also responsible for coordinating all
communications and responding to all inquiries relating to Y2K.
 
     The Company has completed its evaluation of all of its current product
offerings. Such evaluation has shown that Y2K will not pose operating problems
for such products. In the first quarter of 1999 the Company completed the
process of creating a master inventory of all equipment and software vulnerable
to Y2K and is identifying the equipment and software attendant to critical
business processes. Once this process is complete, the Company will be in a
position to implement remediation programs to address potential problems that
are identified. The Company has also begun to remediate certain non-compliant
systems including certain manufacturing systems, information technology systems,
communication systems, security systems and personal computers. The Company
currently believes that it will be able to modify, replace, or mitigate its
affected systems in time to avoid any material impact on its operations.
 
     The Company has initiated formal communication with its vendors to assess
their compliance with Y2K. Questionnaires have been developed and distributed to
vendors. Such questionnaires, when returned by a vendor, have been evaluated to
assess the Y2K risk presented by such vendor. On site evaluations at the most
critical vendors' sites of operations are currently being conducted. The Company
suspects that its greatest Y2K risk will be vendor compliance. The Company
relies on its vendors to supply it with critical components necessary for the
manufacture of its products. A program to assess the Y2K compliance of insurance
companies, management service organizations, and other third party payors is
also being implemented. Once both the internal and external reviews described
above are completed, the Company will be able to design a contingency plan to
address its areas of greatest exposure.
 
     The Company's most reasonably likely worst case scenario in the event of a
failure to correct a material Y2K problem could be an interruption in, or
failure of certain normal business activities. Such failures or interruptions
could materially impact the Company's results of operations, liquidity and
financial position. Due to the general uncertainty inherent in the Y2K problem,
resulting primarily from the uncertainty of the Y2K readiness of the Company's
vendors, suppliers and third party payors, the Company is unable to determine at
this time whether the consequences of Y2K failures will have a material adverse
impact on the Company. The Plan, implemented by the Committee, is expected to
significantly reduce both the Company's level of uncertainty about the Y2K
problem and the possibility of significant interruptions to normal operations.
 
     Management currently believes that the cost of Y2K assessment and
remediation will not be material. The Company estimates that the implementation
of the Plan and remediation activities related to the
 
                                       14
<PAGE>   15
 
Company's internal systems and equipment will cost approximately $1,000,000.
Management currently believes that the Company has adequate working capital to
fund these activities.
 
     Readers are cautioned that forward looking statements contained in this
Year 2000 Compliance section should be read in conjunction with the Company's
cautionary language relating to forward-looking statements at the beginning of
Item 2 "Management's Discussion and Analysis of Financial Condition and Results
of Operations," of this quarterly report on Form 10-Q.
 
                                       15
<PAGE>   16
 
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
 
     Not Applicable
 
                           PART II. OTHER INFORMATION
 
ITEM 1. LEGAL PROCEEDINGS
 
     Not Applicable
 
ITEM 2. CHANGES IN SECURITIES AND USE OF PROCEEDS
 
     The Company has a Stockholder Rights Plan (the "Rights Plan") which is
intended to have the effect of discouraging attempts to obtain control of the
Company. Under the Rights Plan, the Company's stockholders have the right to
purchase a substantial number of additional shares of Common Stock at a price
equal to one-half of the then market price after a person or entity acquires
beneficial ownership of 15% or more of the voting stock of the Company (subject
to certain exceptions) and the acquisition has been publicly announced. The
person or entity acquiring 15% or more of the voting of the stock of the Company
is not entitled to exercise any such rights. As a result, the exercise of the
Rights (as defined in the Rights Plan) would have a substantial dilutive effect
on the voting power and equity investment of that person or entity.
 
     If, after a person or entity acquires 15% or more of the voting stock of
the Company, the acquisition has been publicly announced and thereafter:
 
    (a) the Company merges or consolidates with another entity and the Company
        is not the surviving corporation or
 
    (b) the Company merges or consolidates with another entity and is the
        surviving corporation but the Common Stock of the Company is converted
        into or exchanged for stock or assets of another person or entity or
 
    (c) 50% or more of the Company's assets or earning power is sold or
        transferred,
 
then the Rights become exercisable to purchase shares of the common stock of the
surviving corporation or acquirer at half of its then market price. Until they
become exercisable the Rights are not evidenced by any separate security and
trade with the Common Stock. Until the rights become exercisable to purchase
Common Stock, the Rights are redeemable at the option of the Board of Directors
for nominal consideration and the Board has the right to amend, supplement or
terminate the Rights Plan.
 
     On May 1, 1999, the Company amended its Rights Plan to (a) eliminate those
provisions that require that certain actions may only be taken by 'Independent
Directors' (as defined in the Rights Plan) and (b) to change the exercise price
of a Right (as defined in the Rights Plan) from $65.00 to $250.00. Under the
Rights Plan prior to this amendment, a majority (but not less than three)
'Independent Directors' had the power to take certain actions after the Rights
have become exercisable, including the power to redeem the Rights and to amend
and supplement the Rights Plan in certain respects. 'Independent Directors' were
directors who became directors prior to the time a person or entity acquired
beneficial ownership of 15% or more of the outstanding shares of voting stock of
the Company (subject to certain exceptions) or were recommended to become a
director by such directors and who were not such a 15% stockholder or affiliated
with such a 15% stockholder. In 1998 the Delaware Court of Chancery decided a
case holding that such provisions, which can have the effect of excluding some
or all duly elected directors from voting on the action to be taken, are
invalid. The amendment to the Rights Plan is intended to bring the Rights Plan
into conformance with the court decision. The effect of the amendment is to make
it possible for directors who are elected after a person or entity acquires
beneficial ownership of 15% or more of the outstanding shares of Common Stock
(and who are not recommended by the directors in office before that acquisition
of shares) to redeem the Rights and to amend or supplement the Rights Plan. This
makes it easier for such a 15% stockholder to reduce or eliminate the protection
that the Rights Plan was intended to provide.
 
                                       16
<PAGE>   17
 
     At the 1999 Annual Meeting of Stockholders to be held on May 20, 1999 the
stockholders of the Company will consider amendments to the Company's
Certificate of Incorporation and ByLaws to establish three classes of directors
with each class being elected every three years (after a phase-in period) to
staggered three year terms. With such a classified board, replacement of a
majority of the directors would normally take at least two annual meetings. This
provides some measure of protection against the possibility that the Rights Plan
could be circumvented by newly elected directors redeeming the Rights or
amending or supplementing the Rights Plan that was lost by the elimination of
the Independent Director concept.
 
     The amendment of the Rights Plan to increase the exercise price of the
Rights is intended to take into account changes in the prices at which the
Company's Common Stock have been trading since the Rights Plan was adopted in
1995. Under the Rights Plan each stockholder receives one Right for each share
of Common Stock held by him or her. The number of shares that can be purchased
upon exercise of each Right when it becomes exercisable to purchase Common Stock
is equal to the exercise price divided by one-half of the then current market
price of the Common Stock. Thus the relationship between the exercise price and
the market price of the Common Stock determines the number of shares which can
be purchased upon exercise of the Rights.
 
ITEM 3. DEFAULTS UPON SENIOR SECURITIES
 
     Not Applicable
 
ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
 
     Not applicable
 
ITEM 5. OTHER INFORMATION
 
     Not applicable.
 
ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K
 
(a) EXHIBITS
 
<TABLE>
<CAPTION>
    EXHIBIT
    NUMBER                              EXHIBIT
    -------                             -------
    <C>       <S>
     10.1     Change of Control Agreement dated March 1, 1999 between
              MiniMed Inc. and Alfred E. Mann.
     10.2     Change of Control Agreement dated March 1, 1999 between
              MiniMed Inc. and Terrance H. Gregg.
     10.3     Change of Control Agreement dated March 1, 1999 between
              MiniMed Inc. and Eric S. Kentor.
     10.4     Change of Control Agreement dated March 1, 1999 between
              MiniMed Inc. and David Morley.
     10.5     Change of Control Agreement dated March 1, 1999 between
              MiniMed Inc. and Kevin R. Sayer.
     27.1     Financial data schedule
</TABLE>
 
(b) REPORTS ON FORM 8-K
 
     None.
 
                                       17
<PAGE>   18
 
                                   SIGNATURE
 
     Pursuant to the Securities Exchange Act of 1934, the registrant has duly
caused this report to be signed on its behalf by the undersigned thereunto duly
authorized.
 
                                          MiniMed Inc.
 
Date: May 17, 1999                                /s/ KEVIN R. SAYER
                                          --------------------------------------
                                          Kevin R. Sayer
                                          Senior Vice President, Finance &
                                          Chief Financial Officer
 
                                       18
<PAGE>   19
 
                               INDEX TO EXHIBITS
 
<TABLE>
<CAPTION>
EXHIBIT
NUMBER                            DESCRIPTION
- -------                           -----------
<C>       <S>
 10.1     Change of Control Agreement dated March 1, 1999 between
          MiniMed Inc. and Alfred E. Mann.
 10.2     Change of Control Agreement dated March 1, 1999 between
          MiniMed Inc. and Terrance H. Gregg.
 10.3     Change of Control Agreement dated March 1, 1999 between
          MiniMed Inc. and Eric S. Kentor.
 10.4     Change of Control Agreement dated March 1, 1999 between
          MiniMed Inc. and David Morley.
 10.5     Change of Control Agreement dated March 1, 1999 between
          MiniMed Inc. and Kevin R. Sayer.
 27.1     Financial data schedule
</TABLE>
 
                                       19

<PAGE>   1
                                                                    EXHIBIT 10.1



                           CHANGE OF CONTROL AGREEMENT

        This Change of Control Agreement is entered into this 1st day of March,
1999 between MiniMed Inc., a Delaware corporation (the "Company") and Alfred E.
Mann (the "Executive").

                                 R E C I T A L S

        The Company considers it essential and in the best interest of its
stockholders to foster the continuous employment of key management personnel.
The Company further recognizes that, as in the case of many publicly held
corporations, the possibility of a change of control of the Company may exist
and that such possibility, and the uncertainty and questions which it may raise
among management, may create concerns for, and the distraction of, management
personnel and may even result in departures which might have otherwise not have
taken place, all to the detriment of the Company and its stockholders. The
Company now desires to take steps to reinforce and encourage the continued
attention and dedication of members of the Company's management, including the
Executive, to their assigned duties without distraction in the face of
potentially disturbing circumstances arising from the possibility of a change of
control of the Company.

                                A G R E E M E N T

        1. Payment of Severance Benefits Upon Change of Control. In the event of
a Change of Control of the Company (as defined in Section 3) during the two-year
period from the date of this Agreement, the Executive shall be entitled to the
benefits set forth in Section 2 (the "Severance Benefits"), but only if:

               (a) the Executive's employment by the Company or the successor
        owner of its business is terminated by the Company or such successor
        without Cause (as defined in Section 4) during the two years after the
        occurrence of the Change of Control;

               (b) the Executive terminates his or her employment with the
        Company or its successor (i) for Good Reason (as defined in Section 5)
        during the two years after the occurrence of the Change of Control or
        (ii) with or without Good Reason during the thirty day period after the
        first anniversary of the Change of Control provided that the Executive
        gives the Company at least sixty (60) days prior written notice of any
        such termination pursuant to this clause (ii);

               (c) the Executive's employment by the Company is terminated by
        the Company within three months prior to the Change of Control and such
        termination (i) was at the request of a third party who had taken steps
        to effect the Change of Control at the time of the request or (ii)
        otherwise arose in connection with or in anticipation of the Change of
        Control; or

               (d) the Executive terminates his or her employment with the
        Company for Good Reason within three months prior to the Change of
        Control and the event 


<PAGE>   2

        referred to in Section 5 (a), (b) or (c) constituting Good Reason (i)
        occurs at the request of a third party who had taken steps to effect the
        Change of Control at the time of the request or (ii) otherwise arose in
        connection with or in anticipation of the Change of Control.

        A termination of the Executive's employment coupled with an offer of
employment by an Affiliate of the Company will not constitute a termination of
employment for purposes of this Agreement unless the terms of employment offered
would constitute Good Reason for the Executive to terminate his or her
employment if they were imposed by the Company and then only if the Executive
does not accept the offer. Any resignation by the Executive at the request of
the Board of Directors shall be treated as a termination by the Company pursuant
to (a) or (c) above (whichever is applicable) but shall not necessarily mean
that the requirements of (c)(i) or (ii) have been satisfied. An "Affiliate" of
the Company is an entity controlling, controlled by or under common control with
the Company as defined in Rule 405 of the Securities and Exchange Commission
under the Securities Act of 1933.

        The effective date of any termination of employment referred to in (a)
or (c) above shall be the date specified by the Company or the successor owner
of its business, and the effective date of any termination of employment
referred to in (b) or (d) above shall be the date specified in the notice of
termination delivered pursuant to Section 5 or, if no date is specified in the
notice, the date specified by the Executive orally or, if no such date is
specified orally, the date the Executive ceases working for the Company or the
successor owner of its business on a full time basis.

        2.     Definition of Severance Benefits.

        2.1 Amount of Benefits. Except as provided in Section 2.2, the Severance
Benefits referred to in Section 1 shall include and be limited to the following:

               (a) a lump sum payment equal to two times (2X) the Executive's
        annual base salary (at the greater of the rate in effect immediately
        prior to the Change of Control or the rate in effect immediately prior
        to the termination of his or her employment);

               (b) a lump sum payment equal to two times (2X) the Executive's
        Three-Year Average Bonus (as defined and calculated in accordance with
        Section 6);

               (c) a lump sum payment with respect to the Executive's bonus for
        the year of termination of employment as follows:

                      (i) if the performance and other criteria for earning the
               Executive's bonus for the year of termination of employment have
               been established for the quarterly periods of that year and the
               criteria through the end of the last full quarter prior to the
               effective date of termination have been been satisfied (excluding
               any criterion that the Executive continued to be employed through
               the end of the year), then the pro rata portion of the full



                                       2
<PAGE>   3

               bonus that would have been earned for that year if the
               performance criteria for the full year were satisfied to the
               same extent as they have been satisfied for such interim period
               (such pro rata portion to be determined on the basis of the
               number of days in the year prior to the termination of
               employment as compared to the full year);

                      (ii) if the performance and other criteria for earning the
               Executive's bonus for the year of termination of employment have
               been established as provided in (i) above and the criteria for
               earning any bonus through the end of the last full quarter prior
               to the effective date of termination have not been satisfied (and
               the Executive would be deemed to not be eligible for any portion
               of any bonus in connection therewith), then no payment pursuant
               to this Section 2.1 (c);

                      (iii) if the performance and other criteria for earning
               the Executive's bonus are not established on a quarterly basis as
               provided in (i) and (ii) above and all performance and other
               criterial for earning the bonus for the full year have been
               satisfied as of the date of termination (other than the criterion
               that Executive continue to be employed through the end of the
               year), then a pro rata portion of the full bonus for that year
               determined as provided in (i) above; and

                      (iv) if none of (i) through (iii) apply, then a prorated
               portion of the Executive's Three-Year Average Bonus (such prorata
               portion to be determined as provided in (i) above.

               (d) continuation of the Company's contribution to any health,
        disability and life insurance benefits being offered at the time of
        termination of his or her employment for the period from the effective
        date of termination of employment until the earlier of the date two (2)
        years thereafter or the date the Executive becomes employed on a
        full-time basis by another employer and is covered by a medical plan
        provided by such employer with no applicable exclusions for pre-existing
        conditions;

               (e) if the Executive has the right to use of a Company car or is
        granted a car allowance, continuation of such use or allowance for a
        period of one year after the effective date of termination of the
        Executive's employment or until such earlier date as the Executive
        becomes employed on a full time basis by another employer; and

               (f) acceleration of the exercise dates of all outstanding options
        to purchase shares of capital stock of the Company (or any other
        security or property as to which any such option may have become
        exercisable pursuant to its terms) held by the Executive and granted
        under stock option plans adopted by the Company for employees and others
        so that such options become fully exercisable on the date of the
        termination of the Executive's employment to the extent they were not
        otherwise exercisable.



                                       3
<PAGE>   4

The payments in (a), (b) and (c) above shall be made within thirty (30) days
after the effective date of the termination of the Executive's employment.

        Notwithstanding (a) through (e) above, in the case of a termination of
employment prior to the occurrence of a Change of Control, the Company shall
have no obligation to pay or provide any Severance Benefits with respect to the
period prior to the occurrence of the Change of Control. In such event, and to
the extent Section 1 (c) or (d) applies, the amount of Severance Benefits shall
be determined as if the Executive's employment terminated effective upon the
occurrence of the Change of Control, except that, if any of the benefits
referred to in (a) through (e) above have been paid or provided for all or any
portion of the period between the termination of employment and the Change of
Control, the amount of the Severance Benefits which would otherwise be paid
shall be reduced by the amount of the benefits paid or provided for the period
prior to the Change of Control. With respect to acceleration of the exercise
dates of stock options pursuant to (f) above for an Executive whose termination
of employment occurred prior to the occurrence of the Change of Control, such
acceleration shall not occur until the Change of Control and any such stock
option which shall have expired without being fully exercised during the period
from the termination of employment to the date of the Change of Control shall be
deemed to have been reinstated and extended to permit acceleration as
contemplated by (f) above and exercise of the option concurrently with the
consummation of any transaction constituting a Change of Control or, in the
event of such a change referred to in Section 3.1 (a) or (d), within thirty days
thereafter.

        Notwithstanding (b) and (c) above, the benefits set forth in those
subparagraphs shall not be payable if the Executive had been advised, prior to
the Change of Control, that he or she would not be eligible to earn a bonus for
the year in which the termination of employment becomes effective unless (i)
such advice was at the request of a third party who had taken steps to effect
the Change of Control or (ii) otherwise arose in connection with the Change of
Control.

        2.2 Reduction of Amount of Severance Benefits In the event the Company
determines that payment of any of the Severance Benefits would result in the
imposition of any tax imposed by Section 4999 of the Internal Revenue Code of
1986 and the regulations thereunder (or any successor provisions), the Severance
Benefits referred to in Section 2.1 (a) through (e) shall be reduced to such
extent as the Company determines is necessary to avoid the imposition of any
such tax. Such determination shall be made taking into account all other
"parachute payments" (as defined in Section 280G of the Internal Revenue Code
and the regulations thereunder or any successor provisions), to which the
Executive would be entitled, including without limitation the acceleration of
the exercise date of stock options. Such reductions shall first be made in the
bonus payments referred to in Section 2.1(b) and thereafter, if necessary, to
the bonus payments referred to in Section 2.1(c), the salary payments referred
to in Section 2.1(a) and the other benefits referred to in Section 2.1(e) and
(d), all in that order of priority.

        In no event shall any reductions in Severance Benefits pursuant to this
Section 2.2 affect the Executive's rights under 2.1(f) or under any then
existing stock option agreement or plan. If the Company determines that, after
the reduction of the other Severance Benefits referred to above, the
acceleration of the exercise dates of stock options pursuant to 2.1(f) above or
pursuant 



                                       4
<PAGE>   5

to the terms of the option agreements or plans themselves would still result in
the imposition of a tax imposed by Section 4999 of the Internal Revenue Code,
then all of the reductions in Severance Benefits referred to in Section 2.1 (a)
through (e) shall be made and there shall be no further reduction in Severance
Benefits except to the extent that the Executive elects in writing, prior to the
delivery of any notice of termination of his or her employment, to not have any
stock options so accelerate.

        2.3 Resolution of Disagreements. The Company shall make its
determination as to whether any reduction in Severance Benefits is required
pursuant to Section 2.2 within 15 days after the termination of the employment
of the Executive and again promptly after the Executive exercises any stock
options and shall deliver to the Executive written notice of the determination
together with the Company's detailed calculations supporting its conclusion. If
the Executive does not agree with the Company's determination, he or she shall
notify the Company in writing of that disagreement within 30 days after receipt
of the Company's notice and detailed calculations. Failure to give such notice
of disagreement shall be deemed to constitute acceptance of the determination by
the Company, and such determination shall become final and binding on the
parties. The notice by the Executive shall set forth in reasonable detail why
the Executive disagrees with the determination made by the Company and shall be
accompanied by the Executive's detailed calculations supporting his or her
conclusion.

        If the Company and the Executive have not resolved their disagreement
within ten days after the Company receives the Executive's notice and detailed
calculations, the Company and the Executive will each have the right, acting
without the other, to refer the matter to the firm then serving as the
independent certified public accountants of the Company, whose determination
shall be final and binding on both parties. The Company will endeavor to cause
the accounting firm to give both the Executive and the Company written notice of
its determination accompanied by its detailed calculations. If (i) neither party
refers the dispute to the independent accounting firm within thirty days after
the Company receives the Executive's notice, (ii) the Company does not then have
a firm serving as its independent certified public accountants or (iii) the firm
then serving in that capacity refuses to resolve the matter or fails to provide
written notice of its determination accompanied by its detailed calculations
within 30 days after the matter is referred to it, then either party will have
the right to commence an arbitration pursuant to Section 13 to resolve the
matter. The fees and expenses of the accounting firm will be paid by the
Company.

        If the Company determines that payment of the full Severance Benefits
will result in the imposition of a tax as provided above, the Company will have
the right to withhold from the payment of Severance Benefits the amount of any
reduction determined by it in accordance with Section 2.2. If the Executive
disagrees with the determination by the Company, the Company shall have the
right to continue to withhold the payments of such amounts until the matter is
finally resolved. If such resolution indicates that the Company's determination
was incorrect, the Company shall promptly pay to the Executive any amount of
Severance Benefits which should not have been withheld, with interest for the
period that the payment was withheld at the reference rate then in effect of the
Bank of America National Trust and Savings Association.



                                       5
<PAGE>   6

        3.     Definition of Change of Control.

        3.1 Events Constituting Change of Control. For purposes of this
Agreement, a "Change of Control" of the Company shall be deemed to have occurred
if any one of the following events occurs:

               (a) except as provided in Section 3.3, the acquisition by any
        person or group of beneficial ownership (as defined in Section 3.5) of
        more than 30% of the outstanding shares of Common Stock of the Company
        or, if there are then outstanding any other voting securities of the
        Company, such acquisition of 30% or more of the combined voting power of
        the then outstanding voting securities of the Company entitled to vote
        generally in the election of directors;

               (b) the Company sells all or substantially all of its assets (or
        consummates any transaction having a similar effect) or the Company
        merges or consolidates with another entity or completes a reorganization
        except as provided in Section 3.4;

               (c)  the Company is liquidated; or

               (d) The Board of Directors of the Company (if the Company
        continues to own its business) or the board of directors or comparable
        governing body of any successor owner of its business (as a result of a
        transaction which is not itself a Change of Control) consists of a
        majority of directors or members who are not Incumbent Directors (as
        defined in Section 3.2).

Any purchase or redemption of outstanding shares of Common Stock or other voting
securities by the Company resulting in an increase in the percentage of
outstanding shares or other voting securities beneficially owned by any person
or group shall be deemed to constitute a reorganization pursuant to (b) above
except as provided in Section 3.4.

        3.2 Definition of Incumbent Directors. For purposes of Section 3.1 and
subject to the last sentence of this Section 3.2, "Incumbent Directors" includes
only those persons who are:

               (i) serving as directors of the Company on the date of this 
        Agreement or,

               (ii) elected by a majority of the directors who then constitute
        Incumbent Directors or selected by a majority of such directors to be
        nominated for election by the stockholders and are elected.

In no event, however, shall any director whose election to office occurs as a
result of an actual or threatened election contest with respect to the election
or removal of directors or other actual or threatened solicitation of proxies or
consents by on behalf of a person or entity other than the Board of Directors of
the Company be an Incumbent Director.



                                       6
<PAGE>   7

        3.3 Exception for Certain Acquisitions of Stock. Section 3.1(a) shall
not include the acquisition of beneficial ownership of Common Stock or other
voting securities of the Company

               (a) by the Company or any employee benefit plan (or related
        trust) sponsored or maintained by the Company or any entity controlled
        by the Company.

               (b) by Alfred E. Mann,

               (c) by any person or entity as a result of the death of Mr. Mann
        if the shares acquired were beneficially owned by Mr. Mann immediately
        before his death; or

               (d) by any person or entity during Mr. Mann's lifetime if the
        shares acquired were beneficially owned by Mr. Mann immediately prior to
        their acquisition and the acquisition is a charitable contribution or a
        transfer to a trust, partnership, corporation or other entity in which
        Mr. Mann's family and/or any charity or charities own a majority of the
        beneficial interests.

        3.4 Exceptions for Certain Reorganizations. Section 3.1(b) shall not
apply to any transaction described therein if the holders of the voting
securities of the Company outstanding immediately prior to the transaction own
immediately after the transaction in approximately the same proportions 70% or
more of the combined voting power of the voting securities of the entity
purchasing the assets or surviving the merger or consolidation or, in the case
of a reorganization, 70% or more of the combined voting power of the voting
securities of the Company. No increase in the percentage of outstanding shares
or other voting securities beneficially owned by Alfred E. Mann resulting from
any redemption of shares or other voting securities by the Company shall result
in a Change of Control pursuant to Section 3.1.

        3.5 Definition of Person, Acquisition, Group and Beneficial Ownership.
For purposes of this Agreement the term "person" shall have the meaning set
forth in the Securities Exchange Act of 1934 and the terms "acquisition,"
"group, " and "beneficial ownership" shall have the meanings set forth in Rules
13d-3 and 13d-5 of the Rules of the Security and Exchange Commission adopted
under the Securities Exchange Act of 1934 except that shares which a person or
group has the right to acquire shall be deemed beneficially owned whether or not
that right is presently exercisable and regardless of when it becomes
exercisable.

        4. Definition of Termination for Cause. The Executive's employment shall
be deemed to have been terminated for "Cause" if such employment terminates as a
result of:

               (a)  the death of the Executive;

               (b) the Executive becoming unable to perform the essential duties
        of his or her position, even with reasonable accommodation, as a result
        of any physical or mental condition for a period of more than ninety
        (90) consecutive days or for ninety (90) nonconsecutive days in any
        three hundred sixty five (365) day period;



                                       7
<PAGE>   8

               (c) the Executive reaching a mandatory retirement age established
        by the Company before the Change of Control and not in anticipation
        thereof; or

               (d) the Executive's gross negligence; willful misconduct; breach
        of fiduciary duty to the Company involving self-dealing or personal
        profits or conviction, entry of a plea of guilty or nolo contendre to a
        charge of a felony or other crime involving moral turpitude.

        5. Definition of "Good Reason." For purposes of this Agreement the
Executive shall be deemed to have terminated his or her employment for "Good
Reason" if such a termination results from:

               (a) the Company substantially reducing or increasing the duties,
        responsibilities or volume of work of the Executive compared to those he
        or she had in the position he or she held immediately prior to the
        Change of Control except in connection with a promotion accepted by the
        Executive;

               (b) the Company requiring the Executive to have as his or her
        principal location of work any location which is not within 35 miles of
        either the Executive's principal location of work or the Executive's
        residence immediately prior to the Change of Control;

               (c) the Company (i) reducing the base salary of the Executive,
        (ii) reducing the employee benefits available to the Executive (not
        including bonuses or stock options) to an extent which is material to
        all such benefits taken as a whole, or (iii) changing any objective
        criteria for calculating the annual bonus that can be earned by the
        Executive or, if no such objective criteria exist, changing the amount
        of the annual bonus such that the Executive cannot reasonably be
        expected to earn in salary and bonus combined at least 90% of the
        average amount he or she had earned in salary and bonus combined for the
        last three full fiscal years preceding the year for which the bonus is
        changed or such lesser number of full fiscal years during which the
        Executive has been employed by the Company;

               (d) the Company reducing the employee benefits available to the
        Executive (not including bonuses or stock options) to an extent which is
        material to all such benefits taken as a whole; or

               (e) the Company failing to require a successor to expressly
        assume this Agreement as required in Section 9 below unless such
        assumption occurs and is effective by operation of law.

        Notwithstanding the foregoing, none of the events referred to in (a)
through (c) above shall constitute Good Reason unless the Executive gives
written notice to the Company of his or her election to terminate his or her
employment for such reason within 90 days after he or she becomes aware of the
existence of facts or circumstances constituting Good Reason. Such notice shall
set forth in reasonable detail the facts and circumstances constituting the Good
Reason and, 



                                       8
<PAGE>   9

if the Good Reason is a curable condition, shall provide the Company with 30
days to cure such condition. The notice shall also specify the date when the
termination of employment is to become effective (if the Good Reason is not
curable or is curable but not cured within the 30 days), which date shall be not
less than 60 days and not more than 180 days from the date the notice is given.

        6. Definition of "Three-Year Average Bonus." For purposes of determining
the amount of the Severance Benefit referred to in Section 2.1 (b) and (c)
(subject to the last paragraph of Section 2.1), an Executive's "Three-Year
Average Bonus" shall be deemed to be the average of the bonuses paid for the
three most recent full fiscal years preceding the date of termination of the
Executive's employment, or, if the Executive was not an executive officer of the
Company during such three year period or could not have earned a bonus during
such three year period, then (subject to the last paragraph of Section 2.1) the
average annual bonus for such shorter time that he or she was an executive
officer of the Company and could have earned a bonus. Notwithstanding the
foregoing, if all performance and other criteria for earning the bonus for the
year in which termination of the Executive's employment occurs have been
satisfied as of the effective date of such termination (other than the criterion
that the Executive continued to be employed), then the full bonus for that year
and the two most recent full fiscal years shall be averaged to determine the
Three-Year Average Bonus.

        If the two year period referred to in Section 2.1(b) includes any
partial fiscal year of the Company, the bonus for such partial fiscal year shall
be calculated by prorating the Three Year Average Bonus based on the number of
says in the partial fiscal year.

        7. Employment At Will. The employment relationship contemplated by this
Agreement is an at will relationship under which either the Executive or the
Company has the right at any time to terminate the employment relationship with
or without Cause or Good Reason and without notice, subject only to the payment
of the Severance Benefits set forth in Section 2 to the extent that they become
payable under the terms of this Agreement. Nothing in this Agreement is intended
to create a term of employment for a period of years or otherwise.

        8. Mitigation. The Executive shall not be required to mitigate the
amount of any payment provided for in this Agreement by seeking other employment
or otherwise, nor shall the amount of any Severance Benefit provided for in this
Agreement be reduced by any compensation earned by Executive as a result of
employment by another employer, except as provided in Section 2.1(d) and (e).
Notwithstanding the foregoing, in the event that the Executive is entitled, by
operation of any applicable law, to unemployment compensation benefits or
benefits under the Worker Adjustment and Retraining Act of 1988 (known as the
"WARN" Act) in connection with the termination of his or her employment in
addition to those required to be paid to him or her under this Agreement, then
to the extent permitted by applicable law governing severance payments or notice
of termination of employment, the Company shall be entitled to offset against
the amounts payable hereunder the amounts of any such mandated payments.

        9. Assumption of Agreement. The Company will require any successor
(whether by purchase of assets, merger, consolidation or otherwise) to all or
substantially all of the business 



                                       9
<PAGE>   10

and/or assets of the Company to expressly assume and agree to perform all of the
obligations of the Company under this Agreement (including the obligation to
cause any subsequent successor to also assume the obligations of this Agreement)
unless such assumption occurs by operation of law. Nothing in this Section 9 is
intended, however, to require that a person or group referred to in Section
3.1(a) as being the beneficial owner of shares of stock of the Company assume
the obligations under this Agreement as a result of such stock ownership.

        10. Assignment and Successors in Interest. This Agreement is personal to
the Executive and is not assignable by him or her. This Agreement shall inure to
the benefit of and be enforceable by the Executive and his or her personal or
legal representatives, executors, administrators, successors, heirs,
distributees, devisees, and legatees, and is binding upon the successors and
assigns of the Company.

        11. Withholding Taxes. Any payments provided for hereunder shall be paid
net of any applicable withholding required under federal, state or local law.

        12. Covenants of Executive. During the period that Executive is
receiving payments described in Section 1(a) above, he or she will not actively
solicit any employees of the Company or its Affiliates to accept employment for
any other person or entity and, during that period and thereafter, will not
disclose to any person or entity any information concerning the Company or its
business that the Executive knows to be of a confidential or non-public nature
except as necessary to enforce this Agreement or as required by law. "Affiliate"
is defined as any entity controlling, controlled by or under common control
with, the Company within the meaning of Rule 405 of the Securities and Exchange
Commission under the Securities Act of 1933.

        13. Notice. All notices, requests, demands and other communications
provided for in this Agreement shall be in writing and shall be deemed to have
been duly given when personally delivered, in the case of the Company to an
executive officer other than the Executive, or when mailed by United States
mail, postage prepaid, return receipt requested, addressed, in the case of the
Company to 12744 San Fernando Road, Sylmar, California 91342 or, in the case of
the Executive to the address set forth beneath his or her signature hereto, or
such other address as may be provided by either party as to himself, herself or
itself in the manner set forth above.

        14. Arbitration. Except as provided in Section 2.3, all disputes or
controversies arising under or in connection with this Agreement shall be
settled exclusively by arbitration conducted in Los Angeles County, California
in accordance with the rules of the American Arbitration Association then in
effect, provided that the arbitrator or arbitrators shall decide the dispute or
controversy in accordance with California law as applied to this Agreement.
Judgment may be entered on the arbitrator's award in any court having
jurisdiction.

        15. Governing Law. The validity, interpretation, construction and
performance of this Agreement shall be governed by the laws of the State of
California applicable to the agreements between residents of California to be
performed entirely within California.



                                       10
<PAGE>   11

        16. Attorneys' Fees. In the event of any litigation or arbitration
arising out of or relating to this Agreement, the prevailing party shall be
entitled to recover his, her or its reasonable attorneys' fees incurred in
connection therewith.

        17. Entire Agreement. This Agreement sets forth the entire agreement of
the parties with respect to the subject matter contained herein and supersedes
all prior agreements, promises, covenants, arrangements, commitments,
communications, representations, or warranties, whether oral or written except
that nothing in this Agreement shall amend or supersede any employment or stock
option agreement in effect on the date hereof.

        18. Waiver. No provision of this Agreement may be modified, waived or
discharged unless such waiver, modification or discharge is agreed to in writing
and signed by parties hereto. No waiver by either party hereto at any time of
any breach by the other party or of any right or remedy under this Agreement
shall constitute a waiver of any other breach, right or remedy, whether or not
similar in nature.

        19. Counterparts. This Agreement may be executed in two counterparts
each of which shall be deemed an original but both of which together shall
constitute one and the same instrument.

MINIMED INC.

By:  /s/ Terrance H. Gregg                        Alfred E. Mann
     ---------------------                        ------------------------------
                                                         [Print Name]

                                                  12744 San Fernando Road
                                                  ------------------------------

                                                  Sylmar, CA  91342
                                                  ------------------------------
                                                            (Address)



                                       11

<PAGE>   1
                                                                    Exhibit 10.2


                           CHANGE OF CONTROL AGREEMENT

        This Change of Control Agreement is entered into this 1st day of March,
1999 between MiniMed Inc., a Delaware corporation (the "Company") and Terrance
H. Gregg (the "Executive").

                                 R E C I T A L S

        The Company considers it essential and in the best interest of its
stockholders to foster the continuous employment of key management personnel.
The Company further recognizes that, as in the case of many publicly held
corporations, the possibility of a change of control of the Company may exist
and that such possibility, and the uncertainty and questions which it may raise
among management, may create concerns for, and the distraction of, management
personnel and may even result in departures which might have otherwise not have
taken place, all to the detriment of the Company and its stockholders. The
Company now desires to take steps to reinforce and encourage the continued
attention and dedication of members of the Company's management, including the
Executive, to their assigned duties without distraction in the face of
potentially disturbing circumstances arising from the possibility of a change of
control of the Company.

                                A G R E E M E N T

        1. Payment of Severance Benefits Upon Change of Control. In the event of
a Change of Control of the Company (as defined in Section 3) during the two-year
period from the date of this Agreement, the Executive shall be entitled to the
benefits set forth in Section 2 (the "Severance Benefits"), but only if:

               (a) the Executive's employment by the Company or the successor
        owner of its business is terminated by the Company or such successor
        without Cause (as defined in Section 4) during the two years after the
        occurrence of the Change of Control;

               (b) the Executive terminates his or her employment with the
        Company or its successor (i) for Good Reason (as defined in Section 5)
        during the two years after the occurrence of the Change of Control or
        (ii) with or without Good Reason during the thirty day period after the
        first anniversary of the Change of Control provided that the Executive
        gives the Company at least sixty (60) days prior written notice of any
        such termination pursuant to this clause (ii);

               (c) the Executive's employment by the Company is terminated by
        the Company within three months prior to the Change of Control and such
        termination (i) was at the request of a third party who had taken steps
        to effect the Change of Control at the time of the request or (ii)
        otherwise arose in connection with or in anticipation of the Change of
        Control; or


<PAGE>   2

               (d) the Executive terminates his or her employment with the
        Company for Good Reason within three months prior to the Change of
        Control and the event referred to in Section 5 (a), (b) or (c)
        constituting Good Reason (i) occurs at the request of a third party who
        had taken steps to effect the Change of Control at the time of the
        request or (ii) otherwise arose in connection with or in anticipation of
        the Change of Control.

        A termination of the Executive's employment coupled with an offer of
employment by an Affiliate of the Company will not constitute a termination of
employment for purposes of this Agreement unless the terms of employment offered
would constitute Good Reason for the Executive to terminate his or her
employment if they were imposed by the Company and then only if the Executive
does not accept the offer. Any resignation by the Executive at the request of
the Board of Directors shall be treated as a termination by the Company pursuant
to (a) or (c) above (whichever is applicable) but shall not necessarily mean
that the requirements of (c)(i) or (ii) have been satisfied. An "Affiliate" of
the Company is an entity controlling, controlled by or under common control with
the Company as defined in Rule 405 of the Securities and Exchange Commission
under the Securities Act of 1933.

        The effective date of any termination of employment referred to in (a)
or (c) above shall be the date specified by the Company or the successor owner
of its business, and the effective date of any termination of employment
referred to in (b) or (d) above shall be the date specified in the notice of
termination delivered pursuant to Section 5 or, if no date is specified in the
notice, the date specified by the Executive orally or, if no such date is
specified orally, the date the Executive ceases working for the Company or the
successor owner of its business on a full time basis.

        2.     Definition of Severance Benefits.

        2.1 Amount of Benefits. Except as provided in Section 2.2, the Severance
Benefits referred to in Section 1 shall include and be limited to the following:

               (a) a lump sum payment equal to two times (2X) the Executive's
        annual base salary (at the greater of the rate in effect immediately
        prior to the Change of Control or the rate in effect immediately prior
        to the termination of his or her employment);

               (b) a lump sum payment equal to two times (2X) the Executive's
        Three-Year Average Bonus (as defined and calculated in accordance with
        Section 6);

               (c) a lump sum payment with respect to the Executive's bonus for
        the year of termination of employment as follows:

                      (i) if the performance and other criteria for earning the
               Executive's bonus for the year of termination of employment have
               been established for the quarterly periods of that year and the
               criteria through the end of the last full quarter prior to the
               effective date of termination have been been



                                       2
<PAGE>   3

               satisfied (excluding any criterion that the Executive continued
               to be employed through the end of the year), then the pro rata
               portion of the full bonus that would have been earned for that
               year if the performance criteria for the full year were
               satisfied to the same extent as they have been satisfied for
               such interim period (such pro rata portion to be determined on
               the basis of the number of days in the year prior to the
               termination of employment as compared to the full year);

                      (ii) if the performance and other criteria for earning the
               Executive's bonus for the year of termination of employment have
               been established as provided in (i) above and the criteria for
               earning any bonus through the end of the last full quarter prior
               to the effective date of termination have not been satisfied (and
               the Executive would be deemed to not be eligible for any portion
               of any bonus in connection therewith), then no payment pursuant
               to this Section 2.1 (c);

                      (iii) if the performance and other criteria for earning
               the Executive's bonus are not established on a quarterly basis as
               provided in (i) and (ii) above and all performance and other
               criterial for earning the bonus for the full year have been
               satisfied as of the date of termination (other than the criterion
               that Executive continue to be employed through the end of the
               year), then a pro rata portion of the full bonus for that year
               determined as provided in (i) above; and

                      (iv) if none of (i) through (iii) apply, then a prorated
               portion of the Executive's Three-Year Average Bonus (such prorata
               portion to be determined as provided in (i) above.

               (d) continuation of the Company's contribution to any health,
        disability and life insurance benefits being offered at the time of
        termination of his or her employment for the period from the effective
        date of termination of employment until the earlier of the date two (2)
        years thereafter or the date the Executive becomes employed on a
        full-time basis by another employer and is covered by a medical plan
        provided by such employer with no applicable exclusions for pre-existing
        conditions;

               (e) if the Executive has the right to use of a Company car or is
        granted a car allowance, continuation of such use or allowance for a
        period of one year after the effective date of termination of the
        Executive's employment or until such earlier date as the Executive
        becomes employed on a full time basis by another employer; and

               (f) acceleration of the exercise dates of all outstanding options
        to purchase shares of capital stock of the Company (or any other
        security or property as to which any such option may have become
        exercisable pursuant to its terms) held by the Executive and granted
        under stock option plans adopted by the Company for employees and others
        so 



                                       3
<PAGE>   4

        that such options become fully exercisable on the date of the
        termination of the Executive's employment to the extent they were not
        otherwise exercisable.

The payments in (a), (b) and (c) above shall be made within thirty (30) days
after the effective date of the termination of the Executive's employment.

        Notwithstanding (a) through (e) above, in the case of a termination of
employment prior to the occurrence of a Change of Control, the Company shall
have no obligation to pay or provide any Severance Benefits with respect to the
period prior to the occurrence of the Change of Control. In such event, and to
the extent Section 1 (c) or (d) applies, the amount of Severance Benefits shall
be determined as if the Executive's employment terminated effective upon the
occurrence of the Change of Control, except that, if any of the benefits
referred to in (a) through (e) above have been paid or provided for all or any
portion of the period between the termination of employment and the Change of
Control, the amount of the Severance Benefits which would otherwise be paid
shall be reduced by the amount of the benefits paid or provided for the period
prior to the Change of Control. With respect to acceleration of the exercise
dates of stock options pursuant to (f) above for an Executive whose termination
of employment occurred prior to the occurrence of the Change of Control, such
acceleration shall not occur until the Change of Control and any such stock
option which shall have expired without being fully exercised during the period
from the termination of employment to the date of the Change of Control shall be
deemed to have been reinstated and extended to permit acceleration as
contemplated by (f) above and exercise of the option concurrently with the
consummation of any transaction constituting a Change of Control or, in the
event of such a change referred to in Section 3.1 (a) or (d), within thirty days
thereafter.

        Notwithstanding (b) and (c) above, the benefits set forth in those
subparagraphs shall not be payable if the Executive had been advised, prior to
the Change of Control, that he or she would not be eligible to earn a bonus for
the year in which the termination of employment becomes effective unless (i)
such advice was at the request of a third party who had taken steps to effect
the Change of Control or (ii) otherwise arose in connection with the Change of
Control.

        2.2 Reduction of Amount of Severance Benefits In the event the Company
determines that payment of any of the Severance Benefits would result in the
imposition of any tax imposed by Section 4999 of the Internal Revenue Code of
1986 and the regulations thereunder (or any successor provisions), the Severance
Benefits referred to in Section 2.1 (a) through (e) shall be reduced to such
extent as the Company determines is necessary to avoid the imposition of any
such tax. Such determination shall be made taking into account all other
"parachute payments" (as defined in Section 280G of the Internal Revenue Code
and the regulations thereunder or any successor provisions), to which the
Executive would be entitled, including without limitation the acceleration of
the exercise date of stock options. Such reductions shall first be made in the
bonus payments referred to in Section 2.1(b) and thereafter, if necessary, to
the bonus payments referred to in Section 2.1(c), the salary payments referred
to in Section 2.1(a) and the other benefits referred to in Section 2.1(e) and
(d), all in that order of priority.



                                       4
<PAGE>   5

        In no event shall any reductions in Severance Benefits pursuant to this
Section 2.2 affect the Executive's rights under 2.1(f) or under any then
existing stock option agreement or plan. If the Company determines that, after
the reduction of the other Severance Benefits referred to above, the
acceleration of the exercise dates of stock options pursuant to 2.1(f) above or
pursuant to the terms of the option agreements or plans themselves would still
result in the imposition of a tax imposed by Section 4999 of the Internal
Revenue Code, then all of the reductions in Severance Benefits referred to in
Section 2.1 (a) through (e) shall be made and there shall be no further
reduction in Severance Benefits except to the extent that the Executive elects
in writing, prior to the delivery of any notice of termination of his or her
employment, to not have any stock options so accelerate.

        2.3 Resolution of Disagreements. The Company shall make its
determination as to whether any reduction in Severance Benefits is required
pursuant to Section 2.2 within 15 days after the termination of the employment
of the Executive and again promptly after the Executive exercises any stock
options and shall deliver to the Executive written notice of the determination
together with the Company's detailed calculations supporting its conclusion. If
the Executive does not agree with the Company's determination, he or she shall
notify the Company in writing of that disagreement within 30 days after receipt
of the Company's notice and detailed calculations. Failure to give such notice
of disagreement shall be deemed to constitute acceptance of the determination by
the Company, and such determination shall become final and binding on the
parties. The notice by the Executive shall set forth in reasonable detail why
the Executive disagrees with the determination made by the Company and shall be
accompanied by the Executive's detailed calculations supporting his or her
conclusion.

        If the Company and the Executive have not resolved their disagreement
within ten days after the Company receives the Executive's notice and detailed
calculations, the Company and the Executive will each have the right, acting
without the other, to refer the matter to the firm then serving as the
independent certified public accountants of the Company, whose determination
shall be final and binding on both parties. The Company will endeavor to cause
the accounting firm to give both the Executive and the Company written notice of
its determination accompanied by its detailed calculations. If (i) neither party
refers the dispute to the independent accounting firm within thirty days after
the Company receives the Executive's notice, (ii) the Company does not then have
a firm serving as its independent certified public accountants or (iii) the firm
then serving in that capacity refuses to resolve the matter or fails to provide
written notice of its determination accompanied by its detailed calculations
within 30 days after the matter is referred to it, then either party will have
the right to commence an arbitration pursuant to Section 13 to resolve the
matter. The fees and expenses of the accounting firm will be paid by the
Company.

        If the Company determines that payment of the full Severance Benefits
will result in the imposition of a tax as provided above, the Company will have
the right to withhold from the payment of Severance Benefits the amount of any
reduction determined by it in accordance with Section 2.2. If the Executive
disagrees with the determination by the Company, the Company shall have the
right to continue to withhold the payments of such amounts until the matter is
finally resolved. If such resolution indicates that the Company's determination
was incorrect, the Company shall promptly pay to the Executive any amount of
Severance Benefits which should 



                                       5
<PAGE>   6

not have been withheld, with interest for the period that the payment was
withheld at the reference rate then in effect of the Bank of America National
Trust and Savings Association.



                                       6
<PAGE>   7

        3.     Definition of Change of Control.

        3.1 Events Constituting Change of Control. For purposes of this
Agreement, a "Change of Control" of the Company shall be deemed to have occurred
if any one of the following events occurs:

               (a) except as provided in Section 3.3, the acquisition by any
        person or group of beneficial ownership (as defined in Section 3.5) of
        more than 30% of the outstanding shares of Common Stock of the Company
        or, if there are then outstanding any other voting securities of the
        Company, such acquisition of 30% or more of the combined voting power of
        the then outstanding voting securities of the Company entitled to vote
        generally in the election of directors;

               (b) the Company sells all or substantially all of its assets (or
        consummates any transaction having a similar effect) or the Company
        merges or consolidates with another entity or completes a reorganization
        except as provided in Section 3.4;

               (c)  the Company is liquidated; or

               (d) The Board of Directors of the Company (if the Company
        continues to own its business) or the board of directors or comparable
        governing body of any successor owner of its business (as a result of a
        transaction which is not itself a Change of Control) consists of a
        majority of directors or members who are not Incumbent Directors (as
        defined in Section 3.2).

Any purchase or redemption of outstanding shares of Common Stock or other voting
securities by the Company resulting in an increase in the percentage of
outstanding shares or other voting securities beneficially owned by any person
or group shall be deemed to constitute a reorganization pursuant to (b) above
except as provided in Section 3.4.

        3.2 Definition of Incumbent Directors. For purposes of Section 3.1 and
subject to the last sentence of this Section 3.2, "Incumbent Directors" includes
only those persons who are:

               (i) serving as directors of the Company on the date of this
        Agreement or,

               (ii) elected by a majority of the directors who then constitute
        Incumbent Directors or selected by a majority of such directors to be
        nominated for election by the stockholders and are elected.

In no event, however, shall any director whose election to office occurs as a
result of an actual or threatened election contest with respect to the election
or removal of directors or other actual or threatened solicitation of proxies or
consents by on behalf of a person or entity other than the Board of Directors of
the Company be an Incumbent Director.



                                       7
<PAGE>   8

        3.3 Exception for Certain Acquisitions of Stock. Section 3.1(a) shall
not include the acquisition of beneficial ownership of Common Stock or other
voting securities of the Company

               (a) by the Company or any employee benefit plan (or related
        trust) sponsored or maintained by the Company or any entity controlled
        by the Company.

               (b) by Alfred E. Mann,

               (c) by any person or entity as a result of the death of Mr. Mann
        if the shares acquired were beneficially owned by Mr. Mann immediately
        before his death; or

               (d) by any person or entity during Mr. Mann's lifetime if the
        shares acquired were beneficially owned by Mr. Mann immediately prior to
        their acquisition and the acquisition is a charitable contribution or a
        transfer to a trust, partnership, corporation or other entity in which
        Mr. Mann's family and/or any charity or charities own a majority of the
        beneficial interests.

        3.4 Exceptions for Certain Reorganizations. Section 3.1(b) shall not
apply to any transaction described therein if the holders of the voting
securities of the Company outstanding immediately prior to the transaction own
immediately after the transaction in approximately the same proportions 70% or
more of the combined voting power of the voting securities of the entity
purchasing the assets or surviving the merger or consolidation or, in the case
of a reorganization, 70% or more of the combined voting power of the voting
securities of the Company. No increase in the percentage of outstanding shares
or other voting securities beneficially owned by Alfred E. Mann resulting from
any redemption of shares or other voting securities by the Company shall result
in a Change of Control pursuant to Section 3.1.

        3.5 Definition of Person, Acquisition, Group and Beneficial Ownership.
For purposes of this Agreement the term "person" shall have the meaning set
forth in the Securities Exchange Act of 1934 and the terms "acquisition,"
"group, " and "beneficial ownership" shall have the meanings set forth in Rules
13d-3 and 13d-5 of the Rules of the Security and Exchange Commission adopted
under the Securities Exchange Act of 1934 except that shares which a person or
group has the right to acquire shall be deemed beneficially owned whether or not
that right is presently exercisable and regardless of when it becomes
exercisable.

        4. Definition of Termination for Cause. The Executive's employment shall
be deemed to have been terminated for "Cause" if such employment terminates as a
result of:

               (a)  the death of the Executive;

               (b) the Executive becoming unable to perform the essential duties
        of his or her position, even with reasonable accommodation, as a result
        of any physical or mental condition for a period of more than ninety
        (90) consecutive days or for ninety (90) nonconsecutive days in any
        three hundred sixty five (365) day period;



                                       8
<PAGE>   9

               (c) the Executive reaching a mandatory retirement age established
        by the Company before the Change of Control and not in anticipation
        thereof; or

               (d) the Executive's gross negligence; willful misconduct; breach
        of fiduciary duty to the Company involving self-dealing or personal
        profits or conviction, entry of a plea of guilty or nolo contendre to a
        charge of a felony or other crime involving moral turpitude.

        5. Definition of "Good Reason." For purposes of this Agreement the
Executive shall be deemed to have terminated his or her employment for "Good
Reason" if such a termination results from:

               (a) the Company substantially reducing or increasing the duties,
        responsibilities or volume of work of the Executive compared to those he
        or she had in the position he or she held immediately prior to the
        Change of Control except in connection with a promotion accepted by the
        Executive;

               (b) the Company requiring the Executive to have as his or her
        principal location of work any location which is not within 35 miles of
        either the Executive's principal location of work or the Executive's
        residence immediately prior to the Change of Control;

               (c) the Company (i) reducing the base salary of the Executive,
        (ii) reducing the employee benefits available to the Executive (not
        including bonuses or stock options) to an extent which is material to
        all such benefits taken as a whole, or (iii) changing any objective
        criteria for calculating the annual bonus that can be earned by the
        Executive or, if no such objective criteria exist, changing the amount
        of the annual bonus such that the Executive cannot reasonably be
        expected to earn in salary and bonus combined at least 90% of the
        average amount he or she had earned in salary and bonus combined for the
        last three full fiscal years preceding the year for which the bonus is
        changed or such lesser number of full fiscal years during which the
        Executive has been employed by the Company;

               (d) the Company reducing the employee benefits available to the
        Executive (not including bonuses or stock options) to an extent which is
        material to all such benefits taken as a whole; or

               (e) the Company failing to require a successor to expressly
        assume this Agreement as required in Section 9 below unless such
        assumption occurs and is effective by operation of law.

        Notwithstanding the foregoing, none of the events referred to in (a)
through (c) above shall constitute Good Reason unless the Executive gives
written notice to the Company of his or her election to terminate his or her
employment for such reason within 90 days after he or she becomes aware of the
existence of facts or circumstances constituting Good Reason. Such notice shall
set forth in reasonable detail the facts and circumstances constituting the Good
Reason and,



                                       9
<PAGE>   10

if the Good Reason is a curable condition, shall provide the Company with 30
days to cure such condition. The notice shall also specify the date when the
termination of employment is to become effective (if the Good Reason is not
curable or is curable but not cured within the 30 days), which date shall be not
less than 60 days and not more than 180 days from the date the notice is given.

        6. Definition of "Three-Year Average Bonus." For purposes of determining
the amount of the Severance Benefit referred to in Section 2.1 (b) and (c)
(subject to the last paragraph of Section 2.1), an Executive's "Three-Year
Average Bonus" shall be deemed to be the average of the bonuses paid for the
three most recent full fiscal years preceding the date of termination of the
Executive's employment, or, if the Executive was not an executive officer of the
Company during such three year period or could not have earned a bonus during
such three year period, then (subject to the last paragraph of Section 2.1) the
average annual bonus for such shorter time that he or she was an executive
officer of the Company and could have earned a bonus. Notwithstanding the
foregoing, if all performance and other criteria for earning the bonus for the
year in which termination of the Executive's employment occurs have been
satisfied as of the effective date of such termination (other than the criterion
that the Executive continued to be employed), then the full bonus for that year
and the two most recent full fiscal years shall be averaged to determine the
Three-Year Average Bonus.

        If the two year period referred to in Section 2.1(b) includes any
partial fiscal year of the Company, the bonus for such partial fiscal year shall
be calculated by prorating the Three Year Average Bonus based on the number of
says in the partial fiscal year.

        7. Employment At Will. The employment relationship contemplated by this
Agreement is an at will relationship under which either the Executive or the
Company has the right at any time to terminate the employment relationship with
or without Cause or Good Reason and without notice, subject only to the payment
of the Severance Benefits set forth in Section 2 to the extent that they become
payable under the terms of this Agreement. Nothing in this Agreement is intended
to create a term of employment for a period of years or otherwise.

        8. Mitigation. The Executive shall not be required to mitigate the
amount of any payment provided for in this Agreement by seeking other employment
or otherwise, nor shall the amount of any Severance Benefit provided for in this
Agreement be reduced by any compensation earned by Executive as a result of
employment by another employer, except as provided in Section 2.1(d) and (e).
Notwithstanding the foregoing, in the event that the Executive is entitled, by
operation of any applicable law, to unemployment compensation benefits or
benefits under the Worker Adjustment and Retraining Act of 1988 (known as the
"WARN" Act) in connection with the termination of his or her employment in
addition to those required to be paid to him or her under this Agreement, then
to the extent permitted by applicable law governing severance payments or notice
of termination of employment, the Company shall be entitled to offset against
the amounts payable hereunder the amounts of any such mandated payments.

        9. Assumption of Agreement. The Company will require any successor
(whether by purchase of assets, merger, consolidation or otherwise) to all or
substantially all of the business 



                                       10
<PAGE>   11

and/or assets of the Company to expressly assume and agree to perform all of the
obligations of the Company under this Agreement (including the obligation to
cause any subsequent successor to also assume the obligations of this Agreement)
unless such assumption occurs by operation of law. Nothing in this Section 9 is
intended, however, to require that a person or group referred to in Section
3.1(a) as being the beneficial owner of shares of stock of the Company assume
the obligations under this Agreement as a result of such stock ownership.

        10. Assignment and Successors in Interest. This Agreement is personal to
the Executive and is not assignable by him or her. This Agreement shall inure to
the benefit of and be enforceable by the Executive and his or her personal or
legal representatives, executors, administrators, successors, heirs,
distributees, devisees, and legatees, and is binding upon the successors and
assigns of the Company.

        11. Withholding Taxes. Any payments provided for hereunder shall be paid
net of any applicable withholding required under federal, state or local law.

        12. Covenants of Executive. During the period that Executive is
receiving payments described in Section 1(a) above, he or she will not actively
solicit any employees of the Company or its Affiliates to accept employment for
any other person or entity and, during that period and thereafter, will not
disclose to any person or entity any information concerning the Company or its
business that the Executive knows to be of a confidential or non-public nature
except as necessary to enforce this Agreement or as required by law. "Affiliate"
is defined as any entity controlling, controlled by or under common control
with, the Company within the meaning of Rule 405 of the Securities and Exchange
Commission under the Securities Act of 1933.

        13. Notice. All notices, requests, demands and other communications
provided for in this Agreement shall be in writing and shall be deemed to have
been duly given when personally delivered, in the case of the Company to an
executive officer other than the Executive, or when mailed by United States
mail, postage prepaid, return receipt requested, addressed, in the case of the
Company to 12744 San Fernando Road, Sylmar, California 91342 or, in the case of
the Executive to the address set forth beneath his or her signature hereto, or
such other address as may be provided by either party as to himself, herself or
itself in the manner set forth above.

        14. Arbitration. Except as provided in Section 2.3, all disputes or
controversies arising under or in connection with this Agreement shall be
settled exclusively by arbitration conducted in Los Angeles County, California
in accordance with the rules of the American Arbitration Association then in
effect, provided that the arbitrator or arbitrators shall decide the dispute or
controversy in accordance with California law as applied to this Agreement.
Judgment may be entered on the arbitrator's award in any court having
jurisdiction.

        15. Governing Law. The validity, interpretation, construction and
performance of this Agreement shall be governed by the laws of the State of
California applicable to the agreements between residents of California to be
performed entirely within California.



                                       11
<PAGE>   12

        16. Attorneys' Fees. In the event of any litigation or arbitration
arising out of or relating to this Agreement, the prevailing party shall be
entitled to recover his, her or its reasonable attorneys' fees incurred in
connection therewith.

        17. Entire Agreement. This Agreement sets forth the entire agreement of
the parties with respect to the subject matter contained herein and supersedes
all prior agreements, promises, covenants, arrangements, commitments,
communications, representations, or warranties, whether oral or written except
that nothing in this Agreement shall amend or supersede any employment or stock
option agreement in effect on the date hereof.

        18. Waiver. No provision of this Agreement may be modified, waived or
discharged unless such waiver, modification or discharge is agreed to in writing
and signed by parties hereto. No waiver by either party hereto at any time of
any breach by the other party or of any right or remedy under this Agreement
shall constitute a waiver of any other breach, right or remedy, whether or not
similar in nature.

        19. Counterparts. This Agreement may be executed in two counterparts
each of which shall be deemed an original but both of which together shall
constitute one and the same instrument.

MINIMED INC.

By:  /s/ Alfred E. Mann                           Terrance H. Gregg
     ------------------                           ------------------------------
                                                          [Print Name]

                                                  12744 San Fernando Road
                                                  ------------------------------

                                                  Sylmar, CA  91342
                                                  ------------------------------
                                                           (Address)




                                       12

<PAGE>   1
                                                                    Exhibit 10.3



                           CHANGE OF CONTROL AGREEMENT

        This Change of Control Agreement is entered into this 1st day of March,
1999 between MiniMed Inc., a Delaware corporation (the "Company") and Eric S.
Kentor (the "Executive").

                                 R E C I T A L S

        The Company considers it essential and in the best interest of its
stockholders to foster the continuous employment of key management personnel.
The Company further recognizes that, as in the case of many publicly held
corporations, the possibility of a change of control of the Company may exist
and that such possibility, and the uncertainty and questions which it may raise
among management, may create concerns for, and the distraction of, management
personnel and may even result in departures which might have otherwise not have
taken place, all to the detriment of the Company and its stockholders. The
Company now desires to take steps to reinforce and encourage the continued
attention and dedication of members of the Company's management, including the
Executive, to their assigned duties without distraction in the face of
potentially disturbing circumstances arising from the possibility of a change of
control of the Company.

                                A G R E E M E N T

        1. Payment of Severance Benefits Upon Change of Control. In the event of
a Change of Control of the Company (as defined in Section 3) during the two-year
period from the date of this Agreement, the Executive shall be entitled to the
benefits set forth in Section 2 (the "Severance Benefits"), but only if:

               (a) the Executive's employment by the Company or the successor
        owner of its business is terminated by the Company or such successor
        without Cause (as defined in Section 4) during the two years after the
        occurrence of the Change of Control;

               (b) the Executive terminates his or her employment with the
        Company or its successor (i) for Good Reason (as defined in Section 5)
        during the two years after the occurrence of the Change of Control or
        (ii) with or without Good Reason during the thirty day period after the
        first anniversary of the Change of Control provided that the Executive
        gives the Company at least sixty (60) days prior written notice of any
        such termination pursuant to this clause (ii);

               (c) the Executive's employment by the Company is terminated by
        the Company within three months prior to the Change of Control and such
        termination (i) was at the request of a third party who had taken steps
        to effect the Change of Control at the time of the request or (ii)
        otherwise arose in connection with or in anticipation of the Change of
        Control; or

               (d) the Executive terminates his or her employment with the
        Company for Good Reason within three months prior to the Change of
        Control and the event 


<PAGE>   2

        referred to in Section 5 (a), (b) or (c) constituting Good Reason (i)
        occurs at the request of a third party who had taken steps to effect the
        Change of Control at the time of the request or (ii) otherwise arose in
        connection with or in anticipation of the Change of Control.

        A termination of the Executive's employment coupled with an offer of
employment by an Affiliate of the Company will not constitute a termination of
employment for purposes of this Agreement unless the terms of employment offered
would constitute Good Reason for the Executive to terminate his or her
employment if they were imposed by the Company and then only if the Executive
does not accept the offer. Any resignation by the Executive at the request of
the Board of Directors shall be treated as a termination by the Company pursuant
to (a) or (c) above (whichever is applicable) but shall not necessarily mean
that the requirements of (c)(i) or (ii) have been satisfied. An "Affiliate" of
the Company is an entity controlling, controlled by or under common control with
the Company as defined in Rule 405 of the Securities and Exchange Commission
under the Securities Act of 1933.

        The effective date of any termination of employment referred to in (a)
or (c) above shall be the date specified by the Company or the successor owner
of its business, and the effective date of any termination of employment
referred to in (b) or (d) above shall be the date specified in the notice of
termination delivered pursuant to Section 5 or, if no date is specified in the
notice, the date specified by the Executive orally or, if no such date is
specified orally, the date the Executive ceases working for the Company or the
successor owner of its business on a full time basis.

        2.     Definition of Severance Benefits.

        2.1 Amount of Benefits. Except as provided in Section 2.2, the Severance
Benefits referred to in Section 1 shall include and be limited to the following:

               (a) a lump sum payment equal to two times (2X) the Executive's
        annual base salary (at the greater of the rate in effect immediately
        prior to the Change of Control or the rate in effect immediately prior
        to the termination of his or her employment);

               (b) a lump sum payment equal to two times (2X) the Executive's
        Three-Year Average Bonus (as defined and calculated in accordance with
        Section 6);

               (c) a lump sum payment with respect to the Executive's bonus for
        the year of termination of employment as follows:

                      (i) if the performance and other criteria for earning the
               Executive's bonus for the year of termination of employment have
               been established for the quarterly periods of that year and the
               criteria through the end of the last full quarter prior to the
               effective date of termination have been been satisfied (excluding
               any criterion that the Executive continued to be employed through
               the end of the year), then the pro rata portion of the full



                                       2
<PAGE>   3

               bonus that would have been earned for that year if the
               performance criteria for the full year were satisfied to the same
               extent as they have been satisfied for such interim period (such
               pro rata portion to be determined on the basis of the number of
               days in the year prior to the termination of employment as 
               compared to the full year);

                      (ii) if the performance and other criteria for earning the
               Executive's bonus for the year of termination of employment have
               been established as provided in (i) above and the criteria for
               earning any bonus through the end of the last full quarter prior
               to the effective date of termination have not been satisfied (and
               the Executive would be deemed to not be eligible for any portion
               of any bonus in connection therewith), then no payment pursuant
               to this Section 2.1 (c);

                      (iii) if the performance and other criteria for earning
               the Executive's bonus are not established on a quarterly basis as
               provided in (i) and (ii) above and all performance and other
               criterial for earning the bonus for the full year have been
               satisfied as of the date of termination (other than the criterion
               that Executive continue to be employed through the end of the
               year), then a pro rata portion of the full bonus for that year
               determined as provided in (i) above; and

                      (iv) if none of (i) through (iii) apply, then a prorated
               portion of the Executive's Three-Year Average Bonus (such prorata
               portion to be determined as provided in (i) above.

               (d) continuation of the Company's contribution to any health,
        disability and life insurance benefits being offered at the time of
        termination of his or her employment for the period from the effective
        date of termination of employment until the earlier of the date two (2)
        years thereafter or the date the Executive becomes employed on a
        full-time basis by another employer and is covered by a medical plan
        provided by such employer with no applicable exclusions for pre-existing
        conditions;

               (e) if the Executive has the right to use of a Company car or is
        granted a car allowance, continuation of such use or allowance for a
        period of one year after the effective date of termination of the
        Executive's employment or until such earlier date as the Executive
        becomes employed on a full time basis by another employer; and

               (f) acceleration of the exercise dates of all outstanding options
        to purchase shares of capital stock of the Company (or any other
        security or property as to which any such option may have become
        exercisable pursuant to its terms) held by the Executive and granted
        under stock option plans adopted by the Company for employees and others
        so that such options become fully exercisable on the date of the
        termination of the Executive's employment to the extent they were not
        otherwise exercisable.



                                       3
<PAGE>   4

The payments in (a), (b) and (c) above shall be made within thirty (30) days
after the effective date of the termination of the Executive's employment.

        Notwithstanding (a) through (e) above, in the case of a termination of
employment prior to the occurrence of a Change of Control, the Company shall
have no obligation to pay or provide any Severance Benefits with respect to the
period prior to the occurrence of the Change of Control. In such event, and to
the extent Section 1 (c) or (d) applies, the amount of Severance Benefits shall
be determined as if the Executive's employment terminated effective upon the
occurrence of the Change of Control, except that, if any of the benefits
referred to in (a) through (e) above have been paid or provided for all or any
portion of the period between the termination of employment and the Change of
Control, the amount of the Severance Benefits which would otherwise be paid
shall be reduced by the amount of the benefits paid or provided for the period
prior to the Change of Control. With respect to acceleration of the exercise
dates of stock options pursuant to (f) above for an Executive whose termination
of employment occurred prior to the occurrence of the Change of Control, such
acceleration shall not occur until the Change of Control and any such stock
option which shall have expired without being fully exercised during the period
from the termination of employment to the date of the Change of Control shall be
deemed to have been reinstated and extended to permit acceleration as
contemplated by (f) above and exercise of the option concurrently with the
consummation of any transaction constituting a Change of Control or, in the
event of such a change referred to in Section 3.1 (a) or (d), within thirty days
thereafter.

        Notwithstanding (b) and (c) above, the benefits set forth in those
subparagraphs shall not be payable if the Executive had been advised, prior to
the Change of Control, that he or she would not be eligible to earn a bonus for
the year in which the termination of employment becomes effective unless (i)
such advice was at the request of a third party who had taken steps to effect
the Change of Control or (ii) otherwise arose in connection with the Change of
Control.

        2.2 Reduction of Amount of Severance Benefits In the event the Company
determines that payment of any of the Severance Benefits would result in the
imposition of any tax imposed by Section 4999 of the Internal Revenue Code of
1986 and the regulations thereunder (or any successor provisions), the Severance
Benefits referred to in Section 2.1 (a) through (e) shall be reduced to such
extent as the Company determines is necessary to avoid the imposition of any
such tax. Such determination shall be made taking into account all other
"parachute payments" (as defined in Section 280G of the Internal Revenue Code
and the regulations thereunder or any successor provisions), to which the
Executive would be entitled, including without limitation the acceleration of
the exercise date of stock options. Such reductions shall first be made in the
bonus payments referred to in Section 2.1(b) and thereafter, if necessary, to
the bonus payments referred to in Section 2.1(c), the salary payments referred
to in Section 2.1(a) and the other benefits referred to in Section 2.1(e) and
(d), all in that order of priority.

        In no event shall any reductions in Severance Benefits pursuant to this
Section 2.2 affect the Executive's rights under 2.1(f) or under any then
existing stock option agreement or plan. If the Company determines that, after
the reduction of the other Severance Benefits referred to above, the
acceleration of the exercise dates of stock options pursuant to 2.1(f) above or
pursuant



                                       4
<PAGE>   5

to the terms of the option agreements or plans themselves would still result in
the imposition of a tax imposed by Section 4999 of the Internal Revenue Code,
then all of the reductions in Severance Benefits referred to in Section 2.1 (a)
through (e) shall be made and there shall be no further reduction in Severance
Benefits except to the extent that the Executive elects in writing, prior to the
delivery of any notice of termination of his or her employment, to not have any
stock options so accelerate.

        2.3 Resolution of Disagreements. The Company shall make its
determination as to whether any reduction in Severance Benefits is required
pursuant to Section 2.2 within 15 days after the termination of the employment
of the Executive and again promptly after the Executive exercises any stock
options and shall deliver to the Executive written notice of the determination
together with the Company's detailed calculations supporting its conclusion. If
the Executive does not agree with the Company's determination, he or she shall
notify the Company in writing of that disagreement within 30 days after receipt
of the Company's notice and detailed calculations. Failure to give such notice
of disagreement shall be deemed to constitute acceptance of the determination by
the Company, and such determination shall become final and binding on the
parties. The notice by the Executive shall set forth in reasonable detail why
the Executive disagrees with the determination made by the Company and shall be
accompanied by the Executive's detailed calculations supporting his or her
conclusion.

        If the Company and the Executive have not resolved their disagreement
within ten days after the Company receives the Executive's notice and detailed
calculations, the Company and the Executive will each have the right, acting
without the other, to refer the matter to the firm then serving as the
independent certified public accountants of the Company, whose determination
shall be final and binding on both parties. The Company will endeavor to cause
the accounting firm to give both the Executive and the Company written notice of
its determination accompanied by its detailed calculations. If (i) neither party
refers the dispute to the independent accounting firm within thirty days after
the Company receives the Executive's notice, (ii) the Company does not then have
a firm serving as its independent certified public accountants or (iii) the firm
then serving in that capacity refuses to resolve the matter or fails to provide
written notice of its determination accompanied by its detailed calculations
within 30 days after the matter is referred to it, then either party will have
the right to commence an arbitration pursuant to Section 13 to resolve the
matter. The fees and expenses of the accounting firm will be paid by the
Company.

        If the Company determines that payment of the full Severance Benefits
will result in the imposition of a tax as provided above, the Company will have
the right to withhold from the payment of Severance Benefits the amount of any
reduction determined by it in accordance with Section 2.2. If the Executive
disagrees with the determination by the Company, the Company shall have the
right to continue to withhold the payments of such amounts until the matter is
finally resolved. If such resolution indicates that the Company's determination
was incorrect, the Company shall promptly pay to the Executive any amount of
Severance Benefits which should not have been withheld, with interest for the
period that the payment was withheld at the reference rate then in effect of the
Bank of America National Trust and Savings Association.



                                       5
<PAGE>   6

        3.     Definition of Change of Control.

        3.1 Events Constituting Change of Control. For purposes of this
Agreement, a "Change of Control" of the Company shall be deemed to have occurred
if any one of the following events occurs:

               (a) except as provided in Section 3.3, the acquisition by any
        person or group of beneficial ownership (as defined in Section 3.5) of
        more than 30% of the outstanding shares of Common Stock of the Company
        or, if there are then outstanding any other voting securities of the
        Company, such acquisition of 30% or more of the combined voting power of
        the then outstanding voting securities of the Company entitled to vote
        generally in the election of directors;

               (b) the Company sells all or substantially all of its assets (or
        consummates any transaction having a similar effect) or the Company
        merges or consolidates with another entity or completes a reorganization
        except as provided in Section 3.4;

               (c) the Company is liquidated; or

               (d) The Board of Directors of the Company (if the Company
        continues to own its business) or the board of directors or comparable
        governing body of any successor owner of its business (as a result of a
        transaction which is not itself a Change of Control) consists of a
        majority of directors or members who are not Incumbent Directors (as
        defined in Section 3.2).

Any purchase or redemption of outstanding shares of Common Stock or other voting
securities by the Company resulting in an increase in the percentage of
outstanding shares or other voting securities beneficially owned by any person
or group shall be deemed to constitute a reorganization pursuant to (b) above
except as provided in Section 3.4.

        3.2 Definition of Incumbent Directors. For purposes of Section 3.1 and
subject to the last sentence of this Section 3.2, "Incumbent Directors" includes
only those persons who are:

               (i) serving as directors of the Company on the date of this
        Agreement or,

               (ii) elected by a majority of the directors who then constitute
        Incumbent Directors or selected by a majority of such directors to be
        nominated for election by the stockholders and are elected.

In no event, however, shall any director whose election to office occurs as a
result of an actual or threatened election contest with respect to the election
or removal of directors or other actual or threatened solicitation of proxies or
consents by on behalf of a person or entity other than the Board of Directors of
the Company be an Incumbent Director.



                                       6
<PAGE>   7

        3.3 Exception for Certain Acquisitions of Stock. Section 3.1(a) shall
not include the acquisition of beneficial ownership of Common Stock or other
voting securities of the Company

               (a) by the Company or any employee benefit plan (or related
        trust) sponsored or maintained by the Company or any entity controlled
        by the Company.

               (b) by Alfred E. Mann,

               (c) by any person or entity as a result of the death of Mr. Mann
        if the shares acquired were beneficially owned by Mr. Mann immediately
        before his death; or

               (d) by any person or entity during Mr. Mann's lifetime if the
        shares acquired were beneficially owned by Mr. Mann immediately prior to
        their acquisition and the acquisition is a charitable contribution or a
        transfer to a trust, partnership, corporation or other entity in which
        Mr. Mann's family and/or any charity or charities own a majority of the
        beneficial interests.

        3.4 Exceptions for Certain Reorganizations. Section 3.1(b) shall not
apply to any transaction described therein if the holders of the voting
securities of the Company outstanding immediately prior to the transaction own
immediately after the transaction in approximately the same proportions 70% or
more of the combined voting power of the voting securities of the entity
purchasing the assets or surviving the merger or consolidation or, in the case
of a reorganization, 70% or more of the combined voting power of the voting
securities of the Company. No increase in the percentage of outstanding shares
or other voting securities beneficially owned by Alfred E. Mann resulting from
any redemption of shares or other voting securities by the Company shall result
in a Change of Control pursuant to Section 3.1.

        3.5 Definition of Person, Acquisition, Group and Beneficial Ownership.
For purposes of this Agreement the term "person" shall have the meaning set
forth in the Securities Exchange Act of 1934 and the terms "acquisition,"
"group, " and "beneficial ownership" shall have the meanings set forth in Rules
13d-3 and 13d-5 of the Rules of the Security and Exchange Commission adopted
under the Securities Exchange Act of 1934 except that shares which a person or
group has the right to acquire shall be deemed beneficially owned whether or not
that right is presently exercisable and regardless of when it becomes
exercisable.

        4. Definition of Termination for Cause. The Executive's employment shall
be deemed to have been terminated for "Cause" if such employment terminates as a
result of:

               (a) the death of the Executive;

               (b) the Executive becoming unable to perform the essential duties
        of his or her position, even with reasonable accommodation, as a result
        of any physical or mental condition for a period of more than ninety
        (90) consecutive days or for ninety (90) nonconsecutive days in any
        three hundred sixty five (365) day period;



                                       7
<PAGE>   8

               (c) the Executive reaching a mandatory retirement age established
        by the Company before the Change of Control and not in anticipation
        thereof; or

               (d) the Executive's gross negligence; willful misconduct; breach
        of fiduciary duty to the Company involving self-dealing or personal
        profits or conviction, entry of a plea of guilty or nolo contendre to a
        charge of a felony or other crime involving moral turpitude.

        5. Definition of "Good Reason." For purposes of this Agreement the
Executive shall be deemed to have terminated his or her employment for "Good
Reason" if such a termination results from:

               (a) the Company substantially reducing or increasing the duties,
        responsibilities or volume of work of the Executive compared to those he
        or she had in the position he or she held immediately prior to the
        Change of Control except in connection with a promotion accepted by the
        Executive;

               (b) the Company requiring the Executive to have as his or her
        principal location of work any location which is not within 35 miles of
        either the Executive's principal location of work or the Executive's
        residence immediately prior to the Change of Control;

               (c) the Company (i) reducing the base salary of the Executive,
        (ii) reducing the employee benefits available to the Executive (not
        including bonuses or stock options) to an extent which is material to
        all such benefits taken as a whole, or (iii) changing any objective
        criteria for calculating the annual bonus that can be earned by the
        Executive or, if no such objective criteria exist, changing the amount
        of the annual bonus such that the Executive cannot reasonably be
        expected to earn in salary and bonus combined at least 90% of the
        average amount he or she had earned in salary and bonus combined for the
        last three full fiscal years preceding the year for which the bonus is
        changed or such lesser number of full fiscal years during which the
        Executive has been employed by the Company;

               (d) the Company reducing the employee benefits available to the
        Executive (not including bonuses or stock options) to an extent which is
        material to all such benefits taken as a whole; or

               (e) the Company failing to require a successor to expressly
        assume this Agreement as required in Section 9 below unless such
        assumption occurs and is effective by operation of law.

        Notwithstanding the foregoing, none of the events referred to in (a)
through (c) above shall constitute Good Reason unless the Executive gives
written notice to the Company of his or her election to terminate his or her
employment for such reason within 90 days after he or she becomes aware of the
existence of facts or circumstances constituting Good Reason. Such notice shall
set forth in reasonable detail the facts and circumstances constituting the Good
Reason and, 



                                       8
<PAGE>   9

if the Good Reason is a curable condition, shall provide the Company with 30
days to cure such condition. The notice shall also specify the date when the
termination of employment is to become effective (if the Good Reason is not
curable or is curable but not cured within the 30 days), which date shall be not
less than 60 days and not more than 180 days from the date the notice is given.

        6. Definition of "Three-Year Average Bonus." For purposes of determining
the amount of the Severance Benefit referred to in Section 2.1 (b) and (c)
(subject to the last paragraph of Section 2.1), an Executive's "Three-Year
Average Bonus" shall be deemed to be the average of the bonuses paid for the
three most recent full fiscal years preceding the date of termination of the
Executive's employment, or, if the Executive was not an executive officer of the
Company during such three year period or could not have earned a bonus during
such three year period, then (subject to the last paragraph of Section 2.1) the
average annual bonus for such shorter time that he or she was an executive
officer of the Company and could have earned a bonus. Notwithstanding the
foregoing, if all performance and other criteria for earning the bonus for the
year in which termination of the Executive's employment occurs have been
satisfied as of the effective date of such termination (other than the criterion
that the Executive continued to be employed), then the full bonus for that year
and the two most recent full fiscal years shall be averaged to determine the
Three-Year Average Bonus.

        If the two year period referred to in Section 2.1(b) includes any
partial fiscal year of the Company, the bonus for such partial fiscal year shall
be calculated by prorating the Three Year Average Bonus based on the number of
says in the partial fiscal year.

        7. Employment At Will. The employment relationship contemplated by this
Agreement is an at will relationship under which either the Executive or the
Company has the right at any time to terminate the employment relationship with
or without Cause or Good Reason and without notice, subject only to the payment
of the Severance Benefits set forth in Section 2 to the extent that they become
payable under the terms of this Agreement. Nothing in this Agreement is intended
to create a term of employment for a period of years or otherwise.

        8. Mitigation. The Executive shall not be required to mitigate the
amount of any payment provided for in this Agreement by seeking other employment
or otherwise, nor shall the amount of any Severance Benefit provided for in this
Agreement be reduced by any compensation earned by Executive as a result of
employment by another employer, except as provided in Section 2.1(d) and (e).
Notwithstanding the foregoing, in the event that the Executive is entitled, by
operation of any applicable law, to unemployment compensation benefits or
benefits under the Worker Adjustment and Retraining Act of 1988 (known as the
"WARN" Act) in connection with the termination of his or her employment in
addition to those required to be paid to him or her under this Agreement, then
to the extent permitted by applicable law governing severance payments or notice
of termination of employment, the Company shall be entitled to offset against
the amounts payable hereunder the amounts of any such mandated payments.

        9. Assumption of Agreement. The Company will require any successor
(whether by purchase of assets, merger, consolidation or otherwise) to all or
substantially all of the business 



                                       9
<PAGE>   10

and/or assets of the Company to expressly assume and agree to perform all of the
obligations of the Company under this Agreement (including the obligation to
cause any subsequent successor to also assume the obligations of this Agreement)
unless such assumption occurs by operation of law. Nothing in this Section 9 is
intended, however, to require that a person or group referred to in Section
3.1(a) as being the beneficial owner of shares of stock of the Company assume
the obligations under this Agreement as a result of such stock ownership.

        10. Assignment and Successors in Interest. This Agreement is personal to
the Executive and is not assignable by him or her. This Agreement shall inure to
the benefit of and be enforceable by the Executive and his or her personal or
legal representatives, executors, administrators, successors, heirs,
distributees, devisees, and legatees, and is binding upon the successors and
assigns of the Company.

        11. Withholding Taxes. Any payments provided for hereunder shall be paid
net of any applicable withholding required under federal, state or local law.

        12. Covenants of Executive. During the period that Executive is
receiving payments described in Section 1(a) above, he or she will not actively
solicit any employees of the Company or its Affiliates to accept employment for
any other person or entity and, during that period and thereafter, will not
disclose to any person or entity any information concerning the Company or its
business that the Executive knows to be of a confidential or non-public nature
except as necessary to enforce this Agreement or as required by law. "Affiliate"
is defined as any entity controlling, controlled by or under common control
with, the Company within the meaning of Rule 405 of the Securities and Exchange
Commission under the Securities Act of 1933.

        13. Notice. All notices, requests, demands and other communications
provided for in this Agreement shall be in writing and shall be deemed to have
been duly given when personally delivered, in the case of the Company to an
executive officer other than the Executive, or when mailed by United States
mail, postage prepaid, return receipt requested, addressed, in the case of the
Company to 12744 San Fernando Road, Sylmar, California 91342 or, in the case of
the Executive to the address set forth beneath his or her signature hereto, or
such other address as may be provided by either party as to himself, herself or
itself in the manner set forth above.

        14. Arbitration. Except as provided in Section 2.3, all disputes or
controversies arising under or in connection with this Agreement shall be
settled exclusively by arbitration conducted in Los Angeles County, California
in accordance with the rules of the American Arbitration Association then in
effect, provided that the arbitrator or arbitrators shall decide the dispute or
controversy in accordance with California law as applied to this Agreement.
Judgment may be entered on the arbitrator's award in any court having
jurisdiction.

        15. Governing Law. The validity, interpretation, construction and
performance of this Agreement shall be governed by the laws of the State of
California applicable to the agreements between residents of California to be
performed entirely within California.



                                       10
<PAGE>   11

        16. Attorneys' Fees. In the event of any litigation or arbitration
arising out of or relating to this Agreement, the prevailing party shall be
entitled to recover his, her or its reasonable attorneys' fees incurred in
connection therewith.

        17. Entire Agreement. This Agreement sets forth the entire agreement of
the parties with respect to the subject matter contained herein and supersedes
all prior agreements, promises, covenants, arrangements, commitments,
communications, representations, or warranties, whether oral or written except
that nothing in this Agreement shall amend or supersede any employment or stock
option agreement in effect on the date hereof.

        18. Waiver. No provision of this Agreement may be modified, waived or
discharged unless such waiver, modification or discharge is agreed to in writing
and signed by parties hereto. No waiver by either party hereto at any time of
any breach by the other party or of any right or remedy under this Agreement
shall constitute a waiver of any other breach, right or remedy, whether or not
similar in nature.

        19. Counterparts. This Agreement may be executed in two counterparts
each of which shall be deemed an original but both of which together shall
constitute one and the same instrument.

MINIMED INC.

By:  /s/ Alfred E. Mann                           Eric S. Kentor
     ------------------                           ------------------------------
                                                         [Print Name]

                                                  12744 San Fernando Road
                                                  ------------------------------

                                                  Sylmar, CA  91342
                                                  ------------------------------
                                                          (Address)



                                       11

<PAGE>   1
                                                                    EXHIBIT 10.4



                           CHANGE OF CONTROL AGREEMENT

        This Change of Control Agreement is entered into this 1st day of March,
1999 between MiniMed Inc., a Delaware corporation (the "Company") and David
Morley (the "Executive").

                                 R E C I T A L S

        The Company considers it essential and in the best interest of its
stockholders to foster the continuous employment of key management personnel.
The Company further recognizes that, as in the case of many publicly held
corporations, the possibility of a change of control of the Company may exist
and that such possibility, and the uncertainty and questions which it may raise
among management, may create concerns for, and the distraction of, management
personnel and may even result in departures which might have otherwise not have
taken place, all to the detriment of the Company and its stockholders. The
Company now desires to take steps to reinforce and encourage the continued
attention and dedication of members of the Company's management, including the
Executive, to their assigned duties without distraction in the face of
potentially disturbing circumstances arising from the possibility of a change of
control of the Company.

                                A G R E E M E N T

        1. Payment of Severance Benefits Upon Change of Control. In the event of
a Change of Control of the Company (as defined in Section 3) during the two-year
period from the date of this Agreement, the Executive shall be entitled to the
benefits set forth in Section 2 (the "Severance Benefits"), but only if:

               (a) the Executive's employment by the Company or the successor
        owner of its business is terminated by the Company or such successor
        without Cause (as defined in Section 4) during the two years after the
        occurrence of the Change of Control;

               (b) the Executive terminates his or her employment with the
        Company or its successor (i) for Good Reason (as defined in Section 5)
        during the two years after the occurrence of the Change of Control or
        (ii) with or without Good Reason during the thirty day period after the
        first anniversary of the Change of Control provided that the Executive
        gives the Company at least sixty (60) days prior written notice of any
        such termination pursuant to this clause (ii);

               (c) the Executive's employment by the Company is terminated by
        the Company within three months prior to the Change of Control and such
        termination (i) was at the request of a third party who had taken steps
        to effect the Change of Control at the time of the request or (ii)
        otherwise arose in connection with or in anticipation of the Change of
        Control; or

               (d) the Executive terminates his or her employment with the
        Company for Good Reason within three months prior to the Change of
        Control and the event 


<PAGE>   2

        referred to in Section 5 (a), (b) or (c) constituting Good Reason (i)
        occurs at the request of a third party who had taken steps to effect the
        Change of Control at the time of the request or (ii) otherwise arose in
        connection with or in anticipation of the Change of Control.

        A termination of the Executive's employment coupled with an offer of
employment by an Affiliate of the Company will not constitute a termination of
employment for purposes of this Agreement unless the terms of employment offered
would constitute Good Reason for the Executive to terminate his or her
employment if they were imposed by the Company and then only if the Executive
does not accept the offer. Any resignation by the Executive at the request of
the Board of Directors shall be treated as a termination by the Company pursuant
to (a) or (c) above (whichever is applicable) but shall not necessarily mean
that the requirements of (c)(i) or (ii) have been satisfied. An "Affiliate" of
the Company is an entity controlling, controlled by or under common control with
the Company as defined in Rule 405 of the Securities and Exchange Commission
under the Securities Act of 1933.

        The effective date of any termination of employment referred to in (a)
or (c) above shall be the date specified by the Company or the successor owner
of its business, and the effective date of any termination of employment
referred to in (b) or (d) above shall be the date specified in the notice of
termination delivered pursuant to Section 5 or, if no date is specified in the
notice, the date specified by the Executive orally or, if no such date is
specified orally, the date the Executive ceases working for the Company or the
successor owner of its business on a full time basis.

        2.     Definition of Severance Benefits.

        2.1 Amount of Benefits. Except as provided in Section 2.2, the Severance
Benefits referred to in Section 1 shall include and be limited to the following:

               (a) a lump sum payment equal to two times (2X) the Executive's
        annual base salary (at the greater of the rate in effect immediately
        prior to the Change of Control or the rate in effect immediately prior
        to the termination of his or her employment);

               (b) a lump sum payment equal to two times (2X) the Executive's
        Three-Year Average Bonus (as defined and calculated in accordance with
        Section 6);

               (c) a lump sum payment with respect to the Executive's bonus for
        the year of termination of employment as follows:

                      (i) if the performance and other criteria for earning the
               Executive's bonus for the year of termination of employment have
               been established for the quarterly periods of that year and the
               criteria through the end of the last full quarter prior to the
               effective date of termination have been been satisfied (excluding
               any criterion that the Executive continued to be employed through
               the end of the year), then the pro rata portion of the full



                                       2
<PAGE>   3

               bonus that would have been earned for that year if the
               performance criteria for the full year were satisfied to the same
               extent as they have been satisfied for such interim period (such
               pro rata portion to be determined on the basis of the number of
               days in the year prior to the termination of employment as
               compared to the full year);

                      (ii) if the performance and other criteria for earning the
               Executive's bonus for the year of termination of employment have
               been established as provided in (i) above and the criteria for
               earning any bonus through the end of the last full quarter prior
               to the effective date of termination have not been satisfied (and
               the Executive would be deemed to not be eligible for any portion
               of any bonus in connection therewith), then no payment pursuant
               to this Section 2.1 (c);

                      (iii) if the performance and other criteria for earning
               the Executive's bonus are not established on a quarterly basis as
               provided in (i) and (ii) above and all performance and other
               criterial for earning the bonus for the full year have been
               satisfied as of the date of termination (other than the criterion
               that Executive continue to be employed through the end of the
               year), then a pro rata portion of the full bonus for that year
               determined as provided in (i) above; and

                      (iv) if none of (i) through (iii) apply, then a prorated
               portion of the Executive's Three-Year Average Bonus (such prorata
               portion to be determined as provided in (i) above.

               (d) continuation of the Company's contribution to any health,
        disability and life insurance benefits being offered at the time of
        termination of his or her employment for the period from the effective
        date of termination of employment until the earlier of the date two (2)
        years thereafter or the date the Executive becomes employed on a
        full-time basis by another employer and is covered by a medical plan
        provided by such employer with no applicable exclusions for pre-existing
        conditions;

               (e) if the Executive has the right to use of a Company car or is
        granted a car allowance, continuation of such use or allowance for a
        period of one year after the effective date of termination of the
        Executive's employment or until such earlier date as the Executive
        becomes employed on a full time basis by another employer; and

               (f) acceleration of the exercise dates of all outstanding options
        to purchase shares of capital stock of the Company (or any other
        security or property as to which any such option may have become
        exercisable pursuant to its terms) held by the Executive and granted
        under stock option plans adopted by the Company for employees and others
        so that such options become fully exercisable on the date of the
        termination of the Executive's employment to the extent they were not
        otherwise exercisable.



                                       3
<PAGE>   4

The payments in (a), (b) and (c) above shall be made within thirty (30) days
after the effective date of the termination of the Executive's employment.

        Notwithstanding (a) through (e) above, in the case of a termination of
employment prior to the occurrence of a Change of Control, the Company shall
have no obligation to pay or provide any Severance Benefits with respect to the
period prior to the occurrence of the Change of Control. In such event, and to
the extent Section 1 (c) or (d) applies, the amount of Severance Benefits shall
be determined as if the Executive's employment terminated effective upon the
occurrence of the Change of Control, except that, if any of the benefits
referred to in (a) through (e) above have been paid or provided for all or any
portion of the period between the termination of employment and the Change of
Control, the amount of the Severance Benefits which would otherwise be paid
shall be reduced by the amount of the benefits paid or provided for the period
prior to the Change of Control. With respect to acceleration of the exercise
dates of stock options pursuant to (f) above for an Executive whose termination
of employment occurred prior to the occurrence of the Change of Control, such
acceleration shall not occur until the Change of Control and any such stock
option which shall have expired without being fully exercised during the period
from the termination of employment to the date of the Change of Control shall be
deemed to have been reinstated and extended to permit acceleration as
contemplated by (f) above and exercise of the option concurrently with the
consummation of any transaction constituting a Change of Control or, in the
event of such a change referred to in Section 3.1 (a) or (d), within thirty days
thereafter.

        Notwithstanding (b) and (c) above, the benefits set forth in those
subparagraphs shall not be payable if the Executive had been advised, prior to
the Change of Control, that he or she would not be eligible to earn a bonus for
the year in which the termination of employment becomes effective unless (i)
such advice was at the request of a third party who had taken steps to effect
the Change of Control or (ii) otherwise arose in connection with the Change of
Control.

        2.2 Reduction of Amount of Severance Benefits In the event the Company
determines that payment of any of the Severance Benefits would result in the
imposition of any tax imposed by Section 4999 of the Internal Revenue Code of
1986 and the regulations thereunder (or any successor provisions), the Severance
Benefits referred to in Section 2.1 (a) through (e) shall be reduced to such
extent as the Company determines is necessary to avoid the imposition of any
such tax. Such determination shall be made taking into account all other
"parachute payments" (as defined in Section 280G of the Internal Revenue Code
and the regulations thereunder or any successor provisions), to which the
Executive would be entitled, including without limitation the acceleration of
the exercise date of stock options. Such reductions shall first be made in the
bonus payments referred to in Section 2.1(b) and thereafter, if necessary, to
the bonus payments referred to in Section 2.1(c), the salary payments referred
to in Section 2.1(a) and the other benefits referred to in Section 2.1(e) and
(d), all in that order of priority.

        In no event shall any reductions in Severance Benefits pursuant to this
Section 2.2 affect the Executive's rights under 2.1(f) or under any then
existing stock option agreement or plan. If the Company determines that, after
the reduction of the other Severance Benefits referred to above, the
acceleration of the exercise dates of stock options pursuant to 2.1(f) above or
pursuant



                                       4
<PAGE>   5

to the terms of the option agreements or plans themselves would still result in
the imposition of a tax imposed by Section 4999 of the Internal Revenue Code,
then all of the reductions in Severance Benefits referred to in Section 2.1 (a)
through (e) shall be made and there shall be no further reduction in Severance
Benefits except to the extent that the Executive elects in writing, prior to the
delivery of any notice of termination of his or her employment, to not have any
stock options so accelerate.

        2.3 Resolution of Disagreements. The Company shall make its
determination as to whether any reduction in Severance Benefits is required
pursuant to Section 2.2 within 15 days after the termination of the employment
of the Executive and again promptly after the Executive exercises any stock
options and shall deliver to the Executive written notice of the determination
together with the Company's detailed calculations supporting its conclusion. If
the Executive does not agree with the Company's determination, he or she shall
notify the Company in writing of that disagreement within 30 days after receipt
of the Company's notice and detailed calculations. Failure to give such notice
of disagreement shall be deemed to constitute acceptance of the determination by
the Company, and such determination shall become final and binding on the
parties. The notice by the Executive shall set forth in reasonable detail why
the Executive disagrees with the determination made by the Company and shall be
accompanied by the Executive's detailed calculations supporting his or her
conclusion.

        If the Company and the Executive have not resolved their disagreement
within ten days after the Company receives the Executive's notice and detailed
calculations, the Company and the Executive will each have the right, acting
without the other, to refer the matter to the firm then serving as the
independent certified public accountants of the Company, whose determination
shall be final and binding on both parties. The Company will endeavor to cause
the accounting firm to give both the Executive and the Company written notice of
its determination accompanied by its detailed calculations. If (i) neither party
refers the dispute to the independent accounting firm within thirty days after
the Company receives the Executive's notice, (ii) the Company does not then have
a firm serving as its independent certified public accountants or (iii) the firm
then serving in that capacity refuses to resolve the matter or fails to provide
written notice of its determination accompanied by its detailed calculations
within 30 days after the matter is referred to it, then either party will have
the right to commence an arbitration pursuant to Section 13 to resolve the
matter. The fees and expenses of the accounting firm will be paid by the
Company.

        If the Company determines that payment of the full Severance Benefits
will result in the imposition of a tax as provided above, the Company will have
the right to withhold from the payment of Severance Benefits the amount of any
reduction determined by it in accordance with Section 2.2. If the Executive
disagrees with the determination by the Company, the Company shall have the
right to continue to withhold the payments of such amounts until the matter is
finally resolved. If such resolution indicates that the Company's determination
was incorrect, the Company shall promptly pay to the Executive any amount of
Severance Benefits which should not have been withheld, with interest for the
period that the payment was withheld at the reference rate then in effect of the
Bank of America National Trust and Savings Association.



                                       5
<PAGE>   6

        3.     Definition of Change of Control.

        3.1 Events Constituting Change of Control. For purposes of this
Agreement, a "Change of Control" of the Company shall be deemed to have occurred
if any one of the following events occurs:

               (a) except as provided in Section 3.3, the acquisition by any
        person or group of beneficial ownership (as defined in Section 3.5) of
        more than 30% of the outstanding shares of Common Stock of the Company
        or, if there are then outstanding any other voting securities of the
        Company, such acquisition of 30% or more of the combined voting power of
        the then outstanding voting securities of the Company entitled to vote
        generally in the election of directors;

               (b) the Company sells all or substantially all of its assets (or
        consummates any transaction having a similar effect) or the Company
        merges or consolidates with another entity or completes a reorganization
        except as provided in Section 3.4;

               (c) the Company is liquidated; or

               (d) The Board of Directors of the Company (if the Company
        continues to own its business) or the board of directors or comparable
        governing body of any successor owner of its business (as a result of a
        transaction which is not itself a Change of Control) consists of a
        majority of directors or members who are not Incumbent Directors (as
        defined in Section 3.2).

Any purchase or redemption of outstanding shares of Common Stock or other voting
securities by the Company resulting in an increase in the percentage of
outstanding shares or other voting securities beneficially owned by any person
or group shall be deemed to constitute a reorganization pursuant to (b) above
except as provided in Section 3.4.

        3.2 Definition of Incumbent Directors. For purposes of Section 3.1 and
subject to the last sentence of this Section 3.2, "Incumbent Directors" includes
only those persons who are:

               (i) serving as directors of the Company on the date of this
        Agreement or,

               (ii) elected by a majority of the directors who then constitute
        Incumbent Directors or selected by a majority of such directors to be
        nominated for election by the stockholders and are elected.

In no event, however, shall any director whose election to office occurs as a
result of an actual or threatened election contest with respect to the election
or removal of directors or other actual or threatened solicitation of proxies or
consents by on behalf of a person or entity other than the Board of Directors of
the Company be an Incumbent Director.



                                       6
<PAGE>   7

        3.3 Exception for Certain Acquisitions of Stock. Section 3.1(a) shall
not include the acquisition of beneficial ownership of Common Stock or other
voting securities of the Company

               (a) by the Company or any employee benefit plan (or related
        trust) sponsored or maintained by the Company or any entity controlled
        by the Company.

               (b) by Alfred E. Mann,

               (c) by any person or entity as a result of the death of Mr. Mann
        if the shares acquired were beneficially owned by Mr. Mann immediately
        before his death; or

               (d) by any person or entity during Mr. Mann's lifetime if the
        shares acquired were beneficially owned by Mr. Mann immediately prior to
        their acquisition and the acquisition is a charitable contribution or a
        transfer to a trust, partnership, corporation or other entity in which
        Mr. Mann's family and/or any charity or charities own a majority of the
        beneficial interests.

        3.4 Exceptions for Certain Reorganizations. Section 3.1(b) shall not
apply to any transaction described therein if the holders of the voting
securities of the Company outstanding immediately prior to the transaction own
immediately after the transaction in approximately the same proportions 70% or
more of the combined voting power of the voting securities of the entity
purchasing the assets or surviving the merger or consolidation or, in the case
of a reorganization, 70% or more of the combined voting power of the voting
securities of the Company. No increase in the percentage of outstanding shares
or other voting securities beneficially owned by Alfred E. Mann resulting from
any redemption of shares or other voting securities by the Company shall result
in a Change of Control pursuant to Section 3.1.

        3.5 Definition of Person, Acquisition, Group and Beneficial Ownership.
For purposes of this Agreement the term "person" shall have the meaning set
forth in the Securities Exchange Act of 1934 and the terms "acquisition,"
"group, " and "beneficial ownership" shall have the meanings set forth in Rules
13d-3 and 13d-5 of the Rules of the Security and Exchange Commission adopted
under the Securities Exchange Act of 1934 except that shares which a person or
group has the right to acquire shall be deemed beneficially owned whether or not
that right is presently exercisable and regardless of when it becomes
exercisable.

        4. Definition of Termination for Cause. The Executive's employment shall
be deemed to have been terminated for "Cause" if such employment terminates as a
result of:

               (a)  the death of the Executive;

               (b) the Executive becoming unable to perform the essential duties
        of his or her position, even with reasonable accommodation, as a result
        of any physical or mental condition for a period of more than ninety
        (90) consecutive days or for ninety (90) nonconsecutive days in any
        three hundred sixty five (365) day period;



                                       7
<PAGE>   8

               (c) the Executive reaching a mandatory retirement age established
        by the Company before the Change of Control and not in anticipation
        thereof; or

               (d) the Executive's gross negligence; willful misconduct; breach
        of fiduciary duty to the Company involving self-dealing or personal
        profits or conviction, entry of a plea of guilty or nolo contendre to a
        charge of a felony or other crime involving moral turpitude.

        5. Definition of "Good Reason." For purposes of this Agreement the
Executive shall be deemed to have terminated his or her employment for "Good
Reason" if such a termination results from:

               (a) the Company substantially reducing or increasing the duties,
        responsibilities or volume of work of the Executive compared to those he
        or she had in the position he or she held immediately prior to the
        Change of Control except in connection with a promotion accepted by the
        Executive;

               (b) the Company requiring the Executive to have as his or her
        principal location of work any location which is not within 35 miles of
        either the Executive's principal location of work or the Executive's
        residence immediately prior to the Change of Control;

               (c) the Company (i) reducing the base salary of the Executive,
        (ii) reducing the employee benefits available to the Executive (not
        including bonuses or stock options) to an extent which is material to
        all such benefits taken as a whole, or (iii) changing any objective
        criteria for calculating the annual bonus that can be earned by the
        Executive or, if no such objective criteria exist, changing the amount
        of the annual bonus such that the Executive cannot reasonably be
        expected to earn in salary and bonus combined at least 90% of the
        average amount he or she had earned in salary and bonus combined for the
        last three full fiscal years preceding the year for which the bonus is
        changed or such lesser number of full fiscal years during which the
        Executive has been employed by the Company;

               (d) the Company reducing the employee benefits available to the
        Executive (not including bonuses or stock options) to an extent which is
        material to all such benefits taken as a whole; or

               (e) the Company failing to require a successor to expressly
        assume this Agreement as required in Section 9 below unless such
        assumption occurs and is effective by operation of law.

        Notwithstanding the foregoing, none of the events referred to in (a)
through (c) above shall constitute Good Reason unless the Executive gives
written notice to the Company of his or her election to terminate his or her
employment for such reason within 90 days after he or she becomes aware of the
existence of facts or circumstances constituting Good Reason. Such notice shall
set forth in reasonable detail the facts and circumstances constituting the Good
Reason and, 



                                       8
<PAGE>   9

if the Good Reason is a curable condition, shall provide the Company with 30
days to cure such condition. The notice shall also specify the date when the
termination of employment is to become effective (if the Good Reason is not
curable or is curable but not cured within the 30 days), which date shall be not
less than 60 days and not more than 180 days from the date the notice is given.

        6. Definition of "Three-Year Average Bonus." For purposes of determining
the amount of the Severance Benefit referred to in Section 2.1 (b) and (c)
(subject to the last paragraph of Section 2.1), an Executive's "Three-Year
Average Bonus" shall be deemed to be the average of the bonuses paid for the
three most recent full fiscal years preceding the date of termination of the
Executive's employment, or, if the Executive was not an executive officer of the
Company during such three year period or could not have earned a bonus during
such three year period, then (subject to the last paragraph of Section 2.1) the
average annual bonus for such shorter time that he or she was an executive
officer of the Company and could have earned a bonus. Notwithstanding the
foregoing, if all performance and other criteria for earning the bonus for the
year in which termination of the Executive's employment occurs have been
satisfied as of the effective date of such termination (other than the criterion
that the Executive continued to be employed), then the full bonus for that year
and the two most recent full fiscal years shall be averaged to determine the
Three-Year Average Bonus.

        If the two year period referred to in Section 2.1(b) includes any
partial fiscal year of the Company, the bonus for such partial fiscal year shall
be calculated by prorating the Three Year Average Bonus based on the number of
says in the partial fiscal year.

        7. Employment At Will. The employment relationship contemplated by this
Agreement is an at will relationship under which either the Executive or the
Company has the right at any time to terminate the employment relationship with
or without Cause or Good Reason and without notice, subject only to the payment
of the Severance Benefits set forth in Section 2 to the extent that they become
payable under the terms of this Agreement. Nothing in this Agreement is intended
to create a term of employment for a period of years or otherwise.

        8. Mitigation. The Executive shall not be required to mitigate the
amount of any payment provided for in this Agreement by seeking other employment
or otherwise, nor shall the amount of any Severance Benefit provided for in this
Agreement be reduced by any compensation earned by Executive as a result of
employment by another employer, except as provided in Section 2.1(d) and (e).
Notwithstanding the foregoing, in the event that the Executive is entitled, by
operation of any applicable law, to unemployment compensation benefits or
benefits under the Worker Adjustment and Retraining Act of 1988 (known as the
"WARN" Act) in connection with the termination of his or her employment in
addition to those required to be paid to him or her under this Agreement, then
to the extent permitted by applicable law governing severance payments or notice
of termination of employment, the Company shall be entitled to offset against
the amounts payable hereunder the amounts of any such mandated payments.

        9. Assumption of Agreement. The Company will require any successor
(whether by purchase of assets, merger, consolidation or otherwise) to all or
substantially all of the business 



                                       9
<PAGE>   10

and/or assets of the Company to expressly assume and agree to perform all of the
obligations of the Company under this Agreement (including the obligation to
cause any subsequent successor to also assume the obligations of this Agreement)
unless such assumption occurs by operation of law. Nothing in this Section 9 is
intended, however, to require that a person or group referred to in Section
3.1(a) as being the beneficial owner of shares of stock of the Company assume
the obligations under this Agreement as a result of such stock ownership.

        10. Assignment and Successors in Interest. This Agreement is personal to
the Executive and is not assignable by him or her. This Agreement shall inure to
the benefit of and be enforceable by the Executive and his or her personal or
legal representatives, executors, administrators, successors, heirs,
distributees, devisees, and legatees, and is binding upon the successors and
assigns of the Company.

        11. Withholding Taxes. Any payments provided for hereunder shall be paid
net of any applicable withholding required under federal, state or local law.

        12. Covenants of Executive. During the period that Executive is
receiving payments described in Section 1(a) above, he or she will not actively
solicit any employees of the Company or its Affiliates to accept employment for
any other person or entity and, during that period and thereafter, will not
disclose to any person or entity any information concerning the Company or its
business that the Executive knows to be of a confidential or non-public nature
except as necessary to enforce this Agreement or as required by law. "Affiliate"
is defined as any entity controlling, controlled by or under common control
with, the Company within the meaning of Rule 405 of the Securities and Exchange
Commission under the Securities Act of 1933.

        13. Notice. All notices, requests, demands and other communications
provided for in this Agreement shall be in writing and shall be deemed to have
been duly given when personally delivered, in the case of the Company to an
executive officer other than the Executive, or when mailed by United States
mail, postage prepaid, return receipt requested, addressed, in the case of the
Company to 12744 San Fernando Road, Sylmar, California 91342 or, in the case of
the Executive to the address set forth beneath his or her signature hereto, or
such other address as may be provided by either party as to himself, herself or
itself in the manner set forth above.

        14. Arbitration. Except as provided in Section 2.3, all disputes or
controversies arising under or in connection with this Agreement shall be
settled exclusively by arbitration conducted in Los Angeles County, California
in accordance with the rules of the American Arbitration Association then in
effect, provided that the arbitrator or arbitrators shall decide the dispute or
controversy in accordance with California law as applied to this Agreement.
Judgment may be entered on the arbitrator's award in any court having
jurisdiction.

        15. Governing Law. The validity, interpretation, construction and
performance of this Agreement shall be governed by the laws of the State of
California applicable to the agreements between residents of California to be
performed entirely within California.



                                       10
<PAGE>   11

        16. Attorneys' Fees. In the event of any litigation or arbitration
arising out of or relating to this Agreement, the prevailing party shall be
entitled to recover his, her or its reasonable attorneys' fees incurred in
connection therewith.

        17. Entire Agreement. This Agreement sets forth the entire agreement of
the parties with respect to the subject matter contained herein and supersedes
all prior agreements, promises, covenants, arrangements, commitments,
communications, representations, or warranties, whether oral or written except
that nothing in this Agreement shall amend or supersede any employment or stock
option agreement in effect on the date hereof.

        18. Waiver. No provision of this Agreement may be modified, waived or
discharged unless such waiver, modification or discharge is agreed to in writing
and signed by parties hereto. No waiver by either party hereto at any time of
any breach by the other party or of any right or remedy under this Agreement
shall constitute a waiver of any other breach, right or remedy, whether or not
similar in nature.

        19. Counterparts. This Agreement may be executed in two counterparts
each of which shall be deemed an original but both of which together shall
constitute one and the same instrument.

MINIMED INC.

By:  /s/ Alfred E. Mann                           David Morley
     ------------------                           ------------------------------
                                                          [Print Name]

                                                  12744 San Fernando Road
                                                  ------------------------------

                                                  Sylmar, CA  91342
                                                  ------------------------------
                                                            (Address)



                                       11

<PAGE>   1
                                                                    EXHIBIT 10.5



                           CHANGE OF CONTROL AGREEMENT

        This Change of Control Agreement is entered into this 1st day of March,
1999 between MiniMed Inc., a Delaware corporation (the "Company") and Kevin R.
Sayer (the "Executive").

                                 R E C I T A L S

        The Company considers it essential and in the best interest of its
stockholders to foster the continuous employment of key management personnel.
The Company further recognizes that, as in the case of many publicly held
corporations, the possibility of a change of control of the Company may exist
and that such possibility, and the uncertainty and questions which it may raise
among management, may create concerns for, and the distraction of, management
personnel and may even result in departures which might have otherwise not have
taken place, all to the detriment of the Company and its stockholders. The
Company now desires to take steps to reinforce and encourage the continued
attention and dedication of members of the Company's management, including the
Executive, to their assigned duties without distraction in the face of
potentially disturbing circumstances arising from the possibility of a change of
control of the Company.

                                A G R E E M E N T

        1. Payment of Severance Benefits Upon Change of Control. In the event of
a Change of Control of the Company (as defined in Section 3) during the two-year
period from the date of this Agreement, the Executive shall be entitled to the
benefits set forth in Section 2 (the "Severance Benefits"), but only if:

               (a) the Executive's employment by the Company or the successor
        owner of its business is terminated by the Company or such successor
        without Cause (as defined in Section 4) during the two years after the
        occurrence of the Change of Control;

               (b) the Executive terminates his or her employment with the
        Company or its successor (i) for Good Reason (as defined in Section 5)
        during the two years after the occurrence of the Change of Control or
        (ii) with or without Good Reason during the thirty day period after the
        first anniversary of the Change of Control provided that the Executive
        gives the Company at least sixty (60) days prior written notice of any
        such termination pursuant to this clause (ii);

               (c) the Executive's employment by the Company is terminated by
        the Company within three months prior to the Change of Control and such
        termination (i) was at the request of a third party who had taken steps
        to effect the Change of Control at the time of the request or (ii)
        otherwise arose in connection with or in anticipation of the Change of
        Control; or

               (d) the Executive terminates his or her employment with the
        Company for Good Reason within three months prior to the Change of
        Control and the event 


<PAGE>   2

               referred to in Section 5 (a), (b) or (c) constituting Good Reason
               (i) occurs at the request of a third party who had taken steps to
               effect the Change of Control at the time of the request or (ii)
               otherwise arose in connection with or in anticipation of the
               Change of Control.

        A termination of the Executive's employment coupled with an offer of
employment by an Affiliate of the Company will not constitute a termination of
employment for purposes of this Agreement unless the terms of employment offered
would constitute Good Reason for the Executive to terminate his or her
employment if they were imposed by the Company and then only if the Executive
does not accept the offer. Any resignation by the Executive at the request of
the Board of Directors shall be treated as a termination by the Company pursuant
to (a) or (c) above (whichever is applicable) but shall not necessarily mean
that the requirements of (c)(i) or (ii) have been satisfied. An "Affiliate" of
the Company is an entity controlling, controlled by or under common control with
the Company as defined in Rule 405 of the Securities and Exchange Commission
under the Securities Act of 1933.

        The effective date of any termination of employment referred to in (a)
or (c) above shall be the date specified by the Company or the successor owner
of its business, and the effective date of any termination of employment
referred to in (b) or (d) above shall be the date specified in the notice of
termination delivered pursuant to Section 5 or, if no date is specified in the
notice, the date specified by the Executive orally or, if no such date is
specified orally, the date the Executive ceases working for the Company or the
successor owner of its business on a full time basis.

        2.     Definition of Severance Benefits.

        2.1 Amount of Benefits. Except as provided in Section 2.2, the Severance
Benefits referred to in Section 1 shall include and be limited to the following:

               (a) a lump sum payment equal to two times (2X) the Executive's
        annual base salary (at the greater of the rate in effect immediately
        prior to the Change of Control or the rate in effect immediately prior
        to the termination of his or her employment);

               (b) a lump sum payment equal to two times (2X) the Executive's
        Three-Year Average Bonus (as defined and calculated in accordance with
        Section 6);

               (c) a lump sum payment with respect to the Executive's bonus for
        the year of termination of employment as follows:

                      (i) if the performance and other criteria for earning the
               Executive's bonus for the year of termination of employment have
               been established for the quarterly periods of that year and the
               criteria through the end of the last full quarter prior to the
               effective date of termination have been been satisfied (excluding
               any criterion that the Executive continued to be employed through
               the end of the year), then the pro rata portion of the full



                                        2
<PAGE>   3

               bonus that would have been earned for that year if the
               performance criteria for the full year were satisfied to the same
               extent as they have been satisfied for such interim period (such
               pro rata portion to be determined on the basis of the number of
               days in the year prior to the termination of employment as
               compared to the full year);

                      (ii) if the performance and other criteria for earning the
               Executive's bonus for the year of termination of employment have
               been established as provided in (i) above and the criteria for
               earning any bonus through the end of the last full quarter prior
               to the effective date of termination have not been satisfied (and
               the Executive would be deemed to not be eligible for any portion
               of any bonus in connection therewith), then no payment pursuant
               to this Section 2.1 (c);

                      (iii) if the performance and other criteria for earning
               the Executive's bonus are not established on a quarterly basis as
               provided in (i) and (ii) above and all performance and other
               criterial for earning the bonus for the full year have been
               satisfied as of the date of termination (other than the criterion
               that Executive continue to be employed through the end of the
               year), then a pro rata portion of the full bonus for that year
               determined as provided in (i) above; and

                      (iv) if none of (i) through (iii) apply, then a prorated
               portion of the Executive's Three-Year Average Bonus (such prorata
               portion to be determined as provided in (i) above.

               (d) continuation of the Company's contribution to any health,
        disability and life insurance benefits being offered at the time of
        termination of his or her employment for the period from the effective
        date of termination of employment until the earlier of the date two (2)
        years thereafter or the date the Executive becomes employed on a
        full-time basis by another employer and is covered by a medical plan
        provided by such employer with no applicable exclusions for pre-existing
        conditions;

               (e) if the Executive has the right to use of a Company car or is
        granted a car allowance, continuation of such use or allowance for a
        period of one year after the effective date of termination of the
        Executive's employment or until such earlier date as the Executive
        becomes employed on a full time basis by another employer; and

               (f) acceleration of the exercise dates of all outstanding options
        to purchase shares of capital stock of the Company (or any other
        security or property as to which any such option may have become
        exercisable pursuant to its terms) held by the Executive and granted
        under stock option plans adopted by the Company for employees and others
        so that such options become fully exercisable on the date of the
        termination of the Executive's employment to the extent they were not
        otherwise exercisable.



                                       3
<PAGE>   4

The payments in (a), (b) and (c) above shall be made within thirty (30) days
after the effective date of the termination of the Executive's employment.

        Notwithstanding (a) through (e) above, in the case of a termination of
employment prior to the occurrence of a Change of Control, the Company shall
have no obligation to pay or provide any Severance Benefits with respect to the
period prior to the occurrence of the Change of Control. In such event, and to
the extent Section 1 (c) or (d) applies, the amount of Severance Benefits shall
be determined as if the Executive's employment terminated effective upon the
occurrence of the Change of Control, except that, if any of the benefits
referred to in (a) through (e) above have been paid or provided for all or any
portion of the period between the termination of employment and the Change of
Control, the amount of the Severance Benefits which would otherwise be paid
shall be reduced by the amount of the benefits paid or provided for the period
prior to the Change of Control. With respect to acceleration of the exercise
dates of stock options pursuant to (f) above for an Executive whose termination
of employment occurred prior to the occurrence of the Change of Control, such
acceleration shall not occur until the Change of Control and any such stock
option which shall have expired without being fully exercised during the period
from the termination of employment to the date of the Change of Control shall be
deemed to have been reinstated and extended to permit acceleration as
contemplated by (f) above and exercise of the option concurrently with the
consummation of any transaction constituting a Change of Control or, in the
event of such a change referred to in Section 3.1 (a) or (d), within thirty days
thereafter.

        Notwithstanding (b) and (c) above, the benefits set forth in those
subparagraphs shall not be payable if the Executive had been advised, prior to
the Change of Control, that he or she would not be eligible to earn a bonus for
the year in which the termination of employment becomes effective unless (i)
such advice was at the request of a third party who had taken steps to effect
the Change of Control or (ii) otherwise arose in connection with the Change of
Control.

        2.2 Reduction of Amount of Severance Benefits In the event the Company
determines that payment of any of the Severance Benefits would result in the
imposition of any tax imposed by Section 4999 of the Internal Revenue Code of
1986 and the regulations thereunder (or any successor provisions), the Severance
Benefits referred to in Section 2.1 (a) through (e) shall be reduced to such
extent as the Company determines is necessary to avoid the imposition of any
such tax. Such determination shall be made taking into account all other
"parachute payments" (as defined in Section 280G of the Internal Revenue Code
and the regulations thereunder or any successor provisions), to which the
Executive would be entitled, including without limitation the acceleration of
the exercise date of stock options. Such reductions shall first be made in the
bonus payments referred to in Section 2.1(b) and thereafter, if necessary, to
the bonus payments referred to in Section 2.1(c), the salary payments referred
to in Section 2.1(a) and the other benefits referred to in Section 2.1(e) and
(d), all in that order of priority.

        In no event shall any reductions in Severance Benefits pursuant to this
Section 2.2 affect the Executive's rights under 2.1(f) or under any then
existing stock option agreement or plan. If the Company determines that, after
the reduction of the other Severance Benefits referred to above, the
acceleration of the exercise dates of stock options pursuant to 2.1(f) above or
pursuant 



                                       4
<PAGE>   5

to the terms of the option agreements or plans themselves would still result in
the imposition of a tax imposed by Section 4999 of the Internal Revenue Code,
then all of the reductions in Severance Benefits referred to in Section 2.1 (a)
through (e) shall be made and there shall be no further reduction in Severance
Benefits except to the extent that the Executive elects in writing, prior to the
delivery of any notice of termination of his or her employment, to not have any
stock options so accelerate.

        2.3 Resolution of Disagreements. The Company shall make its
determination as to whether any reduction in Severance Benefits is required
pursuant to Section 2.2 within 15 days after the termination of the employment
of the Executive and again promptly after the Executive exercises any stock
options and shall deliver to the Executive written notice of the determination
together with the Company's detailed calculations supporting its conclusion. If
the Executive does not agree with the Company's determination, he or she shall
notify the Company in writing of that disagreement within 30 days after receipt
of the Company's notice and detailed calculations. Failure to give such notice
of disagreement shall be deemed to constitute acceptance of the determination by
the Company, and such determination shall become final and binding on the
parties. The notice by the Executive shall set forth in reasonable detail why
the Executive disagrees with the determination made by the Company and shall be
accompanied by the Executive's detailed calculations supporting his or her
conclusion.

        If the Company and the Executive have not resolved their disagreement
within ten days after the Company receives the Executive's notice and detailed
calculations, the Company and the Executive will each have the right, acting
without the other, to refer the matter to the firm then serving as the
independent certified public accountants of the Company, whose determination
shall be final and binding on both parties. The Company will endeavor to cause
the accounting firm to give both the Executive and the Company written notice of
its determination accompanied by its detailed calculations. If (i) neither party
refers the dispute to the independent accounting firm within thirty days after
the Company receives the Executive's notice, (ii) the Company does not then have
a firm serving as its independent certified public accountants or (iii) the firm
then serving in that capacity refuses to resolve the matter or fails to provide
written notice of its determination accompanied by its detailed calculations
within 30 days after the matter is referred to it, then either party will have
the right to commence an arbitration pursuant to Section 13 to resolve the
matter. The fees and expenses of the accounting firm will be paid by the
Company.

        If the Company determines that payment of the full Severance Benefits
will result in the imposition of a tax as provided above, the Company will have
the right to withhold from the payment of Severance Benefits the amount of any
reduction determined by it in accordance with Section 2.2. If the Executive
disagrees with the determination by the Company, the Company shall have the
right to continue to withhold the payments of such amounts until the matter is
finally resolved. If such resolution indicates that the Company's determination
was incorrect, the Company shall promptly pay to the Executive any amount of
Severance Benefits which should not have been withheld, with interest for the
period that the payment was withheld at the reference rate then in effect of the
Bank of America National Trust and Savings Association.



                                       5
<PAGE>   6

        3.     Definition of Change of Control.

        3.1 Events Constituting Change of Control. For purposes of this
Agreement, a "Change of Control" of the Company shall be deemed to have occurred
if any one of the following events occurs:

               (a) except as provided in Section 3.3, the acquisition by any
        person or group of beneficial ownership (as defined in Section 3.5) of
        more than 30% of the outstanding shares of Common Stock of the Company
        or, if there are then outstanding any other voting securities of the
        Company, such acquisition of 30% or more of the combined voting power of
        the then outstanding voting securities of the Company entitled to vote
        generally in the election of directors;

               (b) the Company sells all or substantially all of its assets (or
        consummates any transaction having a similar effect) or the Company
        merges or consolidates with another entity or completes a reorganization
        except as provided in Section 3.4;

               (c)  the Company is liquidated; or

               (d) The Board of Directors of the Company (if the Company
        continues to own its business) or the board of directors or comparable
        governing body of any successor owner of its business (as a result of a
        transaction which is not itself a Change of Control) consists of a
        majority of directors or members who are not Incumbent Directors (as
        defined in Section 3.2).

Any purchase or redemption of outstanding shares of Common Stock or other voting
securities by the Company resulting in an increase in the percentage of
outstanding shares or other voting securities beneficially owned by any person
or group shall be deemed to constitute a reorganization pursuant to (b) above
except as provided in Section 3.4.

        3.2 Definition of Incumbent Directors. For purposes of Section 3.1 and
subject to the last sentence of this Section 3.2, "Incumbent Directors" includes
only those persons who are:

               (i) serving as directors of the Company on the date of this
        Agreement or,

               (ii) elected by a majority of the directors who then constitute
        Incumbent Directors or selected by a majority of such directors to be
        nominated for election by the stockholders and are elected.

In no event, however, shall any director whose election to office occurs as a
result of an actual or threatened election contest with respect to the election
or removal of directors or other actual or threatened solicitation of proxies or
consents by on behalf of a person or entity other than the Board of Directors of
the Company be an Incumbent Director.



                                       6
<PAGE>   7

        3.3 Exception for Certain Acquisitions of Stock. Section 3.1(a) shall
not include the acquisition of beneficial ownership of Common Stock or other
voting securities of the Company

               (a) by the Company or any employee benefit plan (or related
        trust) sponsored or maintained by the Company or any entity controlled
        by the Company.

               (b) by Alfred E. Mann,

               (c) by any person or entity as a result of the death of Mr. Mann
        if the shares acquired were beneficially owned by Mr. Mann immediately
        before his death; or

               (d) by any person or entity during Mr. Mann's lifetime if the
        shares acquired were beneficially owned by Mr. Mann immediately prior to
        their acquisition and the acquisition is a charitable contribution or a
        transfer to a trust, partnership, corporation or other entity in which
        Mr. Mann's family and/or any charity or charities own a majority of the
        beneficial interests.

        3.4 Exceptions for Certain Reorganizations. Section 3.1(b) shall not
apply to any transaction described therein if the holders of the voting
securities of the Company outstanding immediately prior to the transaction own
immediately after the transaction in approximately the same proportions 70% or
more of the combined voting power of the voting securities of the entity
purchasing the assets or surviving the merger or consolidation or, in the case
of a reorganization, 70% or more of the combined voting power of the voting
securities of the Company. No increase in the percentage of outstanding shares
or other voting securities beneficially owned by Alfred E. Mann resulting from
any redemption of shares or other voting securities by the Company shall result
in a Change of Control pursuant to Section 3.1.

        3.5 Definition of Person, Acquisition, Group and Beneficial Ownership.
For purposes of this Agreement the term "person" shall have the meaning set
forth in the Securities Exchange Act of 1934 and the terms "acquisition,"
"group, " and "beneficial ownership" shall have the meanings set forth in Rules
13d-3 and 13d-5 of the Rules of the Security and Exchange Commission adopted
under the Securities Exchange Act of 1934 except that shares which a person or
group has the right to acquire shall be deemed beneficially owned whether or not
that right is presently exercisable and regardless of when it becomes
exercisable.

        4. Definition of Termination for Cause. The Executive's employment shall
be deemed to have been terminated for "Cause" if such employment terminates as a
result of:

               (a) the death of the Executive;

               (b) the Executive becoming unable to perform the essential duties
        of his or her position, even with reasonable accommodation, as a result
        of any physical or mental condition for a period of more than ninety
        (90) consecutive days or for ninety (90) nonconsecutive days in any
        three hundred sixty five (365) day period;



                                       7
<PAGE>   8

               (c) the Executive reaching a mandatory retirement age established
        by the Company before the Change of Control and not in anticipation
        thereof; or

               (d) the Executive's gross negligence; willful misconduct; breach
        of fiduciary duty to the Company involving self-dealing or personal
        profits or conviction, entry of a plea of guilty or nolo contendre to a
        charge of a felony or other crime involving moral turpitude.

        5. Definition of "Good Reason." For purposes of this Agreement the
Executive shall be deemed to have terminated his or her employment for "Good
Reason" if such a termination results from:

               (a) the Company substantially reducing or increasing the duties,
        responsibilities or volume of work of the Executive compared to those he
        or she had in the position he or she held immediately prior to the
        Change of Control except in connection with a promotion accepted by the
        Executive;

               (b) the Company requiring the Executive to have as his or her
        principal location of work any location which is not within 35 miles of
        either the Executive's principal location of work or the Executive's
        residence immediately prior to the Change of Control;

               (c) the Company (i) reducing the base salary of the Executive,
        (ii) reducing the employee benefits available to the Executive (not
        including bonuses or stock options) to an extent which is material to
        all such benefits taken as a whole, or (iii) changing any objective
        criteria for calculating the annual bonus that can be earned by the
        Executive or, if no such objective criteria exist, changing the amount
        of the annual bonus such that the Executive cannot reasonably be
        expected to earn in salary and bonus combined at least 90% of the
        average amount he or she had earned in salary and bonus combined for the
        last three full fiscal years preceding the year for which the bonus is
        changed or such lesser number of full fiscal years during which the
        Executive has been employed by the Company;

               (d) the Company reducing the employee benefits available to the
        Executive (not including bonuses or stock options) to an extent which is
        material to all such benefits taken as a whole; or

               (e) the Company failing to require a successor to expressly
        assume this Agreement as required in Section 9 below unless such
        assumption occurs and is effective by operation of law.

        Notwithstanding the foregoing, none of the events referred to in (a)
through (c) above shall constitute Good Reason unless the Executive gives
written notice to the Company of his or her election to terminate his or her
employment for such reason within 90 days after he or she becomes aware of the
existence of facts or circumstances constituting Good Reason. Such notice shall
set forth in reasonable detail the facts and circumstances constituting the Good
Reason and, 



                                       8
<PAGE>   9

if the Good Reason is a curable condition, shall provide the Company with 30
days to cure such condition. The notice shall also specify the date when the
termination of employment is to become effective (if the Good Reason is not
curable or is curable but not cured within the 30 days), which date shall be not
less than 60 days and not more than 180 days from the date the notice is given.

        6. Definition of "Three-Year Average Bonus." For purposes of determining
the amount of the Severance Benefit referred to in Section 2.1 (b) and (c)
(subject to the last paragraph of Section 2.1), an Executive's "Three-Year
Average Bonus" shall be deemed to be the average of the bonuses paid for the
three most recent full fiscal years preceding the date of termination of the
Executive's employment, or, if the Executive was not an executive officer of the
Company during such three year period or could not have earned a bonus during
such three year period, then (subject to the last paragraph of Section 2.1) the
average annual bonus for such shorter time that he or she was an executive
officer of the Company and could have earned a bonus. Notwithstanding the
foregoing, if all performance and other criteria for earning the bonus for the
year in which termination of the Executive's employment occurs have been
satisfied as of the effective date of such termination (other than the criterion
that the Executive continued to be employed), then the full bonus for that year
and the two most recent full fiscal years shall be averaged to determine the
Three-Year Average Bonus.

        If the two year period referred to in Section 2.1(b) includes any
partial fiscal year of the Company, the bonus for such partial fiscal year shall
be calculated by prorating the Three Year Average Bonus based on the number of
says in the partial fiscal year.

        7. Employment At Will. The employment relationship contemplated by this
Agreement is an at will relationship under which either the Executive or the
Company has the right at any time to terminate the employment relationship with
or without Cause or Good Reason and without notice, subject only to the payment
of the Severance Benefits set forth in Section 2 to the extent that they become
payable under the terms of this Agreement. Nothing in this Agreement is intended
to create a term of employment for a period of years or otherwise.

        8. Mitigation. The Executive shall not be required to mitigate the
amount of any payment provided for in this Agreement by seeking other employment
or otherwise, nor shall the amount of any Severance Benefit provided for in this
Agreement be reduced by any compensation earned by Executive as a result of
employment by another employer, except as provided in Section 2.1(d) and (e).
Notwithstanding the foregoing, in the event that the Executive is entitled, by
operation of any applicable law, to unemployment compensation benefits or
benefits under the Worker Adjustment and Retraining Act of 1988 (known as the
"WARN" Act) in connection with the termination of his or her employment in
addition to those required to be paid to him or her under this Agreement, then
to the extent permitted by applicable law governing severance payments or notice
of termination of employment, the Company shall be entitled to offset against
the amounts payable hereunder the amounts of any such mandated payments.

        9. Assumption of Agreement. The Company will require any successor
(whether by purchase of assets, merger, consolidation or otherwise) to all or
substantially all of the business 



                                       9
<PAGE>   10

and/or assets of the Company to expressly assume and agree to perform all of the
obligations of the Company under this Agreement (including the obligation to
cause any subsequent successor to also assume the obligations of this Agreement)
unless such assumption occurs by operation of law. Nothing in this Section 9 is
intended, however, to require that a person or group referred to in Section
3.1(a) as being the beneficial owner of shares of stock of the Company assume
the obligations under this Agreement as a result of such stock ownership.

        10. Assignment and Successors in Interest. This Agreement is personal to
the Executive and is not assignable by him or her. This Agreement shall inure to
the benefit of and be enforceable by the Executive and his or her personal or
legal representatives, executors, administrators, successors, heirs,
distributees, devisees, and legatees, and is binding upon the successors and
assigns of the Company.

        11. Withholding Taxes. Any payments provided for hereunder shall be paid
net of any applicable withholding required under federal, state or local law.

        12. Covenants of Executive. During the period that Executive is
receiving payments described in Section 1(a) above, he or she will not actively
solicit any employees of the Company or its Affiliates to accept employment for
any other person or entity and, during that period and thereafter, will not
disclose to any person or entity any information concerning the Company or its
business that the Executive knows to be of a confidential or non-public nature
except as necessary to enforce this Agreement or as required by law. "Affiliate"
is defined as any entity controlling, controlled by or under common control
with, the Company within the meaning of Rule 405 of the Securities and Exchange
Commission under the Securities Act of 1933.

        13. Notice. All notices, requests, demands and other communications
provided for in this Agreement shall be in writing and shall be deemed to have
been duly given when personally delivered, in the case of the Company to an
executive officer other than the Executive, or when mailed by United States
mail, postage prepaid, return receipt requested, addressed, in the case of the
Company to 12744 San Fernando Road, Sylmar, California 91342 or, in the case of
the Executive to the address set forth beneath his or her signature hereto, or
such other address as may be provided by either party as to himself, herself or
itself in the manner set forth above.

        14. Arbitration. Except as provided in Section 2.3, all disputes or
controversies arising under or in connection with this Agreement shall be
settled exclusively by arbitration conducted in Los Angeles County, California
in accordance with the rules of the American Arbitration Association then in
effect, provided that the arbitrator or arbitrators shall decide the dispute or
controversy in accordance with California law as applied to this Agreement.
Judgment may be entered on the arbitrator's award in any court having
jurisdiction.

        15. Governing Law. The validity, interpretation, construction and
performance of this Agreement shall be governed by the laws of the State of
California applicable to the agreements between residents of California to be
performed entirely within California.



                                       10
<PAGE>   11

        16. Attorneys' Fees. In the event of any litigation or arbitration
arising out of or relating to this Agreement, the prevailing party shall be
entitled to recover his, her or its reasonable attorneys' fees incurred in
connection therewith.

        17. Entire Agreement. This Agreement sets forth the entire agreement of
the parties with respect to the subject matter contained herein and supersedes
all prior agreements, promises, covenants, arrangements, commitments,
communications, representations, or warranties, whether oral or written except
that nothing in this Agreement shall amend or supersede any employment or stock
option agreement in effect on the date hereof.

        18. Waiver. No provision of this Agreement may be modified, waived or
discharged unless such waiver, modification or discharge is agreed to in writing
and signed by parties hereto. No waiver by either party hereto at any time of
any breach by the other party or of any right or remedy under this Agreement
shall constitute a waiver of any other breach, right or remedy, whether or not
similar in nature.

        19. Counterparts. This Agreement may be executed in two counterparts
each of which shall be deemed an original but both of which together shall
constitute one and the same instrument.

MINIMED INC.

By:  /s/ Alfred E. Mann                           Kevin R. Sayer
     ------------------                           ------------------------------
                                                          [Print Name]

                                                  12744 San Fernando Road
                                                  ------------------------------

                                                  Sylmar, CA  91342
                                                  ------------------------------
                                                             (Address)



                                       11

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