NORTHERN TRUST CORP
10-Q, 1996-08-12
STATE COMMERCIAL BANKS
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<PAGE>

================================================================================

               UNITED STATES SECURITIES AND EXCHANGE COMMISSION

                            Washington, D.C. 20549
                         ---------------------------

                                   FORM 10-Q

[X]     QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF
              THE SECURITIES EXCHANGE ACT OF 1934

                 For the Quarterly Period Ended June 30, 1996

                                      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 0-5965

                          NORTHERN TRUST CORPORATION
            (Exact name of registrant as specified in its charter)

            DELAWARE                                       36-2723087
(State or other jurisdiction of                         (I.R.S. Employer
incorporation or organization)                         Identification No.)

      50 SOUTH LA SALLE STREET
         CHICAGO, ILLINOIS                                     60675
(Address of principal executive offices)                    (Zip Code)

       Registrant's telephone number, including area code: (312)630-6000

                       ---------------------------------

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) 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  [_]


                    56,272,053 Shares - $1.66 2/3 Par Value
             (Shares of Common Stock Outstanding on June 30, 1996)


================================================================================

<PAGE>
<TABLE>
<CAPTION>
                                                  PART I - FINANCIAL INFORMATION

Item 1. Financial Statements
CONSOLIDATED BALANCE SHEET                                                                 NORTHERN TRUST CORPORATION

                                                                                       June 30    December 31        June 30
                                                                                --------------   ------------   ------------
($ In Millions)                                                                           1996           1995           1995
- -----------------------------------------------------------------------         --------------   ------------   ------------
<S>                                                                             <C>              <C>            <C> 
Assets
Cash and Due from Banks                                                         $    1,232.9     $  1,308.9     $  1,092.8
Money Market Assets
 Federal Funds Sold and Securities Purchased under Agreements to Resell                361.3          162.1          404.0
 Time Deposits with Banks                                                            1,905.4        1,567.6        1,654.5
 Other                                                                                  78.5           54.5           12.6
- -----------------------------------------------------------------------         --------------   ------------   ------------
 Total                                                                               2,345.2        1,784.2        2,071.1
- -----------------------------------------------------------------------         --------------   ------------   ------------
Securities (Fair value $6,323.1 at June 1996, $5,787.8 at December 1995   
   and $5,656.0 at June 1995)                                                        6,303.3        5,760.3        5,624.6
Loans and Leases (Net of unearned income of $91.1 at June 1996, $89.6
   at December 1995, and $75.6 at June 1995)                                        10,405.2        9,906.0        9,421.8
Reserve for Credit Losses                                                             (147.4)        (147.1)        (145.9)
Buildings and Equipment                                                                289.2          281.5          278.2
Customers' Acceptance Liability                                                         34.0           35.8           47.1
Trust Security Settlement Receivables                                                  382.8          327.1          287.0
Other Assets                                                                           906.0          676.8          624.4
- -----------------------------------------------------------------------         --------------   ------------   ------------
Total Assets                                                                    $   21,751.2     $ 19,933.5     $ 19,301.1
- -----------------------------------------------------------------------         --------------   ------------   ------------
Liabilities
Deposits
    Demand and Other Noninterest-Bearing                                        $    2,892.6     $  2,853.1     $  2,543.5
    Savings and Money Market Deposits                                                3,689.6        3,385.3        3,008.2
    Savings Certificates                                                             2,063.6        2,158.8        2,028.5
    Other Time                                                                         456.7          384.3          367.0
    Foreign Offices - Demand                                                           382.4          459.8          327.8
                    - Time                                                           3,782.9        3,246.9        2,972.3
- -----------------------------------------------------------------------         --------------   ------------   ------------
    Total Deposits                                                                  13,267.8       12,488.2       11,247.3
Federal Funds Purchased                                                              1,096.0        2,300.1        1,063.9
Securities Sold Under Agreements to Repurchase                                       1,699.0        1,858.7        1,066.3
Commercial Paper                                                                       144.2          146.7          147.3
Other Borrowings                                                                     3,077.2          875.9        3,415.9
Senior Notes                                                                           205.0           17.0          317.0
Notes Payable                                                                          332.1          334.6          241.1
Liability on Acceptances                                                                34.0           35.8           47.1
Other Liabilities                                                                      402.2          423.9          364.9
- -----------------------------------------------------------------------         --------------   ------------   ------------
    Total Liabilities                                                               20,257.5       18,480.9       17,910.8
- -----------------------------------------------------------------------         --------------   ------------   ------------
Stockholders' Equity
Preferred Stock                                                                        120.0          170.0          170.0
Common Stock - $1.66 2/3 Par Value                                                      95.0           93.6           93.4
                           June 1996  December 1995      June 1995
- -------------------------------------------------------------------
 Shares authorized       140,000,000    140,000,000    140,000,000
 Shares issued            56,979,579     56,158,064     56,035,628
 Shares outstanding       56,272,053     55,664,412     55,870,628

Capital Surplus                                                                        329.5          306.1          307.2
Retained Earnings                                                                    1,016.4          928.8          847.0
Net Unrealized Gain (Loss) on Securities                                                (1.1)           2.6           (2.1)
Common Stock Issuable - Performance Plan                                                10.4           14.7           16.7
Deferred Compensation - ESOP and Other                                                 (37.7)         (39.4)         (35.3)
Treasury Stock - (at cost, 707,526 shares at June 1996, 493,652 shares at
 December 1995, and 165,000 shares at June 1995)                                       (38.8)         (23.8)          (6.6)
- -----------------------------------------------------------------------         --------------   ------------   ------------
 Total Stockholders' Equity                                                          1,493.7        1,452.6        1,390.3
- -----------------------------------------------------------------------         --------------   ------------   ------------
Total Liabilities and Stockholders' Equity                                      $   21,751.2     $ 19,933.5     $ 19,301.1
- -----------------------------------------------------------------------         --------------   ------------   ------------
                                                                                                                           2
</TABLE>
<PAGE>

<TABLE>
<CAPTION>
CONSOLIDATED STATEMENT OF INCOME                                                                     NORTHERN TRUST CORPORATION

                                                                         Second Quarter
                                                                          Ended June 30                 Six Months Ended June 30
                                                                  ----------------------------        ----------------------------

($ In Millions Except Per Share Information)                         1996            1995                1996            1995
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
<S>                                                             <C>              <C>                 <C>               <C>
Interest Income
   Money Market Assets
     Federal Funds Sold and Securities Purchased
     under Agreements to Resell                                   $       3.4     $       3.9         $       7.2     $       7.4
     Time Deposits with Banks                                            20.9            20.8                43.7            47.5
     Other                                                                 .8              .3                 1.6              .5
- ------------------------------------------------------------      ------------    ------------        ------------    ------------

   Total                                                                 25.1            25.0                52.5            55.4
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
   Securities                                                            91.7            89.1               185.3           174.2
   Loans and Leases                                                     169.3           157.0               333.2           302.7
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Total Interest Income                                                   286.1           271.1               571.0           532.3
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Interest Expense
   Deposits  - Savings and Money Market Deposits                         28.6            27.4                56.7            54.0
             - Savings Certificates                                      29.3            30.6                60.2            55.1
             - Other Time                                                 6.2             8.0                14.6            14.4
             - Foreign Offices                                           45.5            47.2                89.6            97.8
   Federal Funds Purchased                                               22.5            16.1                51.2            32.2
   Securities Sold under Agreements to Repurchase                        28.0            25.0                54.1            49.1
   Commercial Paper                                                       2.0             2.2                 3.9             4.3
   Other Borrowings                                                      18.7            15.9                31.5            26.4
   Senior Notes                                                           3.4             5.8                 7.5            12.7
   Notes Payable                                                          6.4             4.9                12.8             9.8
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Total Interest Expense                                                  190.6           183.1               382.1           355.8
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Net Interest Income                                                      95.5            88.0               188.9           176.5
Provision for Credit Losses                                               4.0             1.5                 9.0             3.0
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Net Interest Income after Provision for Credit Losses                    91.5            86.5               179.9           173.5
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Noninterest Income
   Trust Fees                                                           148.7           123.3               292.6           244.1
   Security Commissions and Trading Income                                6.4             5.2                12.7            11.1
   Other Operating Income                                                40.0            39.9                77.2            74.7
   Investment Security Gains                                               .1              .1                  .4              .2
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Total Noninterest Income                                                195.2           168.5               382.9           330.1
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Income before Noninterest Expenses                                      286.7           255.0               562.8           503.6
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Noninterest Expenses
   Salaries                                                              90.0            84.4               177.7           166.9
   Pension and Other Employee Benefits                                   18.4            20.8                38.8            42.3
   Occupancy Expense                                                     15.6            15.3                31.4            29.5
   Equipment Expense                                                     13.8            12.0                27.4            24.6
   Other Operating Expenses                                              53.8            45.4               100.3            91.9
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Total Noninterest Expenses                                              191.6           177.9               375.6           355.2
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Income before Income Taxes                                               95.1            77.1               187.2           148.4
Provision for Income Taxes                                               31.7            24.0                62.3            46.0
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Net Income                                                        $      63.4     $      53.1         $     124.9     $     102.4
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Net Income Applicable to Common Stock                             $      62.2     $      50.9         $     122.4     $      98.1
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Net Income Per Common Share - Primary                             $      1.08     $       .90         $      2.13     $      1.75
                            - Fully Diluted                              1.08             .89                2.12            1.74
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
Average Number of Common Shares Outstanding - Primary              57,444,717      56,878,030          57,467,827      56,027,938
                                            - Fully Diluted        57,585,575      58,178,442          57,804,774      57,340,009
- ------------------------------------------------------------      ------------    ------------        ------------    ------------
</TABLE>

3

<PAGE>

<TABLE>
<CAPTION>

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY       NORTHERN TRUST CORPORATION

                                                                         Six Months
                                                                        Ended June 30
                                                                   -----------------------
(In Millions)                                                         1996        1995
- ----------------------------------------------------------------   ----------   ----------
<S>                                                                <C>          <C>     
Preferred Stock
Balance at January 1                                                 $  170.0  $   170.0
Conversion of Preferred Stock, Series E                                 (50.0)         -
- ----------------------------------------------------------------   -----------------------
Balance at June 30                                                      120.0      170.0
- ----------------------------------------------------------------   -----------------------
Common Stock
Balance at January 1                                                     93.6       90.6
Stock Issued - Incentive Plan and Awards                                              .1
Stock Issued in Acquisitions                                                         2.7
Conversion of Preferred Stock, Series E                                   1.4          -
- ----------------------------------------------------------------   -----------------------
Balance at June 30                                                       95.0       93.4
- ----------------------------------------------------------------   -----------------------
Capital Surplus
Balance at January 1                                                    306.1      302.2
Stock Issued - Incentive Plan and Awards                                 (5.8)      (1.9)
Stock Issued in Acquisitions                                                         6.9
Conversion of Preferred Stock, Series E                                  29.2          -
- ----------------------------------------------------------------   -----------------------
Balance at June 30                                                      329.5      307.2
- ----------------------------------------------------------------   -----------------------
Retained Earnings
Balance at January 1                                                    928.8      762.7
Net Income                                                              124.9      102.4
Dividends Declared on Common Stock                                      (35.0)     (28.7)
Dividends Declared on Preferred Stock                                    (2.3)      (4.5)
Pooled Affiliates                                                                   15.1
- ----------------------------------------------------------------   -----------------------
Balance at June 30                                                    1,016.4      847.0
- ----------------------------------------------------------------   -----------------------
Net Unrealized Gain (Loss) on Securities
Balance at January 1                                                      2.6      (15.8)
Unrealized Gain (Loss), net                                              (3.7)      13.7
- ----------------------------------------------------------------   -----------------------
Balance at June 30                                                       (1.1)      (2.1)
- ----------------------------------------------------------------   -----------------------
Common Stock Issuable - Performance Plan
Balance at January 1                                                     14.7       17.9
Stock Issuable, net of Stock Issued                                      (4.3)      (1.2)
- ----------------------------------------------------------------   -----------------------
Balance at June 30                                                       10.4       16.7
- ----------------------------------------------------------------   -----------------------
Deferred Compensation - ESOP and Other
Balance at January 1                                                    (39.4)     (38.8)
Compensation Deferred                                                    (1.9)      (1.4)
Compensation Amortized                                                    3.6        4.9
- ----------------------------------------------------------------   -----------------------
Balance at June 30                                                      (37.7)     (35.3)
- ----------------------------------------------------------------   -----------------------
Treasury Stock
Balance at January 1                                                    (23.8)      (8.1)
Stock Options and Awards                                                 28.9       11.0
Stock Purchased                                                         (63.1)      (9.5)
Conversion of Preferred Stock, Series E                                  19.2          -
- ----------------------------------------------------------------   -----------------------
Balance at June 30                                                      (38.8)      (6.6)
- ----------------------------------------------------------------   -----------------------
Total Stockholders' Equity at June 30                                $1,493.7   $1,390.3
- ----------------------------------------------------------------   -----------------------
</TABLE>
                                                                               4
<PAGE>
<TABLE>
<CAPTION>

CONSOLIDATED STATEMENT OF CASH FLOWS                                                            NORTHERN TRUST CORPORATION

                                                                                                        Six Months
                                                                                                       Ended June 30
                                                                                                 -----------------------
(In Millions)                                                                                            1996       1995
- --------------------------------------------------------------------------                       ------------ ----------
<S>                                                                                             <C>           <C> 
Cash Flows from Operating Activities:
Net Income                                                                                       $     124.9  $   102.4
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
  Provision for Credit Losses                                                                            9.0        3.0
  Depreciation on Buildings and Equipment                                                               23.7       21.3
  Increase in Interest Receivable                                                                                  (7.9)
  Increase in Interest Payable                                                                           3.0        9.7
  Amortization and Accretion of Securities and Unearned Income                                         (55.7)     (88.6)
  Amortization of Software, Goodwill and Other Intangibles                                              21.9       18.1
  Net (Increase) Decrease in Trading Account Securities                                                 85.6      (51.9)
  Other Noncash, net                                                                                  (237.9)       2.6
- --------------------------------------------------------------------------                       ------------ ----------
  Net Cash Provided by (Used in) Operating Activities                                                  (25.5)       8.7
- --------------------------------------------------------------------------                       ------------ ----------
Cash Flows from Investing Activities:
  Net (Increase) Decrease in Federal Funds Sold and Securities Purchased under Agreements to Resell   (199.2)     386.1
  Net (Increase) Decrease in Time Deposits with Banks                                                 (337.8)     210.2
  Net Increase in Other Money Market Assets                                                            (24.0)      (3.1)
  Purchases of Securities-Held to Maturity                                                          (6,400.3)    (501.0)
  Proceeds from Maturity and Redemption of Securities-Held to Maturity                               6,434.7      594.3
  Purchases of Securities-Available for Sale                                                       (20,273.3) (15,315.8)
  Proceeds from Sale, Maturity and Redemption of Securities-Available for Sale                      19,648.2   14,889.6
  Net Increase in Loans and Leases                                                                    (510.5)    (737.3)
  Net Purchases of Buildings and Equipment                                                             (31.4)     (20.2)
  Net (Increase) Decrease in Trust Security Settlement Receivables                                     (55.7)      18.7
  Other, net                                                                                           (13.4)       2.4
- --------------------------------------------------------------------------                       ------------ ----------
  Net Cash Used in Investing Activities                                                             (1,762.7)    (476.1)
- --------------------------------------------------------------------------                       ------------ ----------
Cash Flows from Financing Activities:
  Net Increase (Decrease) in Deposits                                                                  779.6     (666.5)
  Net Increase (Decrease) in Federal Funds Purchased                                                (1,204.1)      91.9
  Net Decrease in Securities Sold under Agreement to Repurchase                                       (159.7)  (1,150.6)
  Net Increase (Decrease) in Commercial Paper                                                           (2.5)      23.5
  Net Increase in Short-Term Other Borrowings                                                        2,358.2    2,346.0
  Proceeds from Term Federal Funds Purchased                                                         1,340.9    1,341.3
  Repayments of Term Federal Funds Purchased                                                        (1,497.8)  (1,349.3)
  Proceeds from Senior Notes & Notes Payable                                                           701.5          -
  Repayments of Senior Notes & Notes Payable                                                          (516.0)    (233.7)
  Treasury Stock Purchased                                                                             (58.8)      (8.5)
  Net Proceeds from Stock Options                                                                        5.2        1.7
  Cash Dividends Paid on Common and Preferred Stock                                                    (37.3)     (32.7)
  Other, net                                                                                             3.0        4.6
- --------------------------------------------------------------------------                       ------------ ----------
  Net Cash Provided by Financing Activities                                                          1,712.2      367.7
- --------------------------------------------------------------------------                       ------------ ----------
  Decrease in Cash and Due from Banks                                                                  (76.0)     (99.7)
  Cash and Due from Banks at Beginning of Year                                                       1,308.9    1,192.5
- --------------------------------------------------------------------------                       ------------ ----------
Cash and Due from Banks at June 30                                                               $   1,232.9  $ 1,092.8
- --------------------------------------------------------------------------                       ------------ ----------
Schedule of Noncash Investing and Financing Activities:
  Conversion of Preferred Stock, Series E to Common Stock                                        $      49.7  $       -
  Acquisition of Affiliate for Stock                                                                               24.7
Supplemental Disclosures of Cash Flow Information:
  Interest Paid on Deposits and Short- and Long-Term Borrowings                                  $     379.1  $   345.7
  Income Taxes Paid                                                                                     34.9       31.3
- --------------------------------------------------------------------------                       ------------ ----------
</TABLE>

5
<PAGE>
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.  BASIS OF PRESENTATION  -  The consolidated financial statements include
the accounts of Northern Trust Corporation and its subsidiaries ("Northern
Trust"), all of which are wholly owned.  Significant intercompany balances and
transactions have been eliminated.  The consolidated financial statements as of
June 30, 1996 and 1995 have not been audited by independent public accountants.
In the opinion of management, all adjustments necessary for a fair presentation
of the financial position and the results of operations for the interim periods
have been made.  All such adjustments are of a normal recurring nature.  For a
description of Northern Trust's significant accounting principles, refer to the
Notes to Consolidated Financial Statements in the 1995 Annual Report to
Stockholders.

2.  SECURITIES  -  The following table summarizes the book and fair values of
securities.

<TABLE> 
<CAPTION> 
                                June 30, 1996        December 31, 1995         June 30, 1995
                             -------------------------------------------------------------------
                               Book       Fair       Book        Fair        Book        Fair
(In Millions)                  Value      Value      Value       Value       Value       Value
- ------------------------------------------------------------------------------------------------
<S>                           <C>        <C>        <C>         <C>         <C>         <C> 
Held to Maturity
  U.S. Government             $  114.2   $  114.1   $  116.1    $  116.3    $   88.1    $   88.2
  Obligations of States and
   Political Subdivisions        341.3      361.2      366.9       394.0       434.7       466.2
  Federal Agency                  18.2       18.2       22.2        22.4        22.7        22.6
  Other                           30.4       30.4       29.9        29.9        29.2        29.1
- ------------------------------------------------------------------------------------------------
Subtotal                         504.1      523.9      535.1       562.6       574.7       606.1
- ------------------------------------------------------------------------------------------------

Available for Sale
  U.S. Government              1,763.9    1,763.9    1,667.7     1,667.7       729.3       729.3
  Obligations of States and
   Political Subdivisions         79.5       79.5       70.2        70.2           -           -
  Federal Agency               3,779.9    3,779.9    3,152.8     3,152.8     3,936.4     3,936.4
  Preferred Stock                110.7      110.7      147.8       147.8       188.0       188.0
  Other                           61.9       61.9       97.8        97.8       140.3       140.3
- ------------------------------------------------------------------------------------------------
Subtotal                       5,795.9    5,795.9    5,136.3     5,136.3     4,994.0     4,994.0
- ------------------------------------------------------------------------------------------------

Trading Account                    3.3        3.3       88.9        88.9        55.9        55.9
- ------------------------------------------------------------------------------------------------

Total Securities              $6,303.3   $6,323.1   $5,760.3    $5,787.8    $5,624.6    $5,656.0
- ------------------------------------------------------------------------------------------------

Reconciliation of Book  Values to Fair Values of
Securities Held to Maturity                                   June 30, 1996
- ------------------------------------------------------------------------------------------------
                                                            Gross Unrealized             
                                                 Book       ----------------             Fair
(In Millions)                                    Value      Gains      Losses            Value
- -----------------------------------------------------------------------------------------------
<S>                                           <C>          <C>         <C>             <C> 
Held to Maturity
  U.S. Government                               $114.2       $   -       $ .1           $114.1
  Obligations of States and
   Political Subdivisions                        341.3        20.3         .4            361.2
  Federal Agency                                  18.2          .1         .1             18.2
  Other                                           30.4           -          -             30.4
- ----------------------------------------------------------------------------------------------
Total                                           $504.1       $20.4       $ .6           $523.9
- ----------------------------------------------------------------------------------------------
</TABLE> 
                                                                               6
 
<PAGE>

<TABLE> 
<CAPTION>  

Reconciliation of Amortized Cost to Fair Values of
Securities Available for Sale                                  June 30, 1996
- ------------------------------------------------------------------------------------------------
                                                              Gross Unrealized            
                                        Amortized             ----------------          Fair
(In Millions)                                Cost             Gains     Losses         Value
- ------------------------------------------------------------------------------------------------
<S>                                     <C>                  <C>        <C>          <C>  
Available for Sale
  U.S. Government                        $1,766.1            $ 1.7       $ 3.9       $1,763.9
  Obligations of States and
    Political Subdivisions                   79.3              1.9         1.7           79.5
  Federal Agency                          3,780.0              2.6         2.7        3,779.9
  Preferred Stock                           111.0               -           .3          110.7
  Other                                      62.7               .8         1.6           61.9
- ------------------------------------------------------------------------------------------------
Total                                    $5,799.1            $ 7.0       $10.2       $5,795.9
- ------------------------------------------------------------------------------------------------
</TABLE>

Unrealized gains and losses on off-balance sheet financial instruments used to
hedge available for sale securities totaled $4.6 million and $3.1 million,
respectively, as of June 30, 1996.  Unrealized gains on these hedges are
reported as other assets in the consolidated balance sheet; unrealized losses
are reported as other liabilities.  As of June 30, 1996, stockholders' equity
included a charge of $1.1 million, net of tax, to recognize the depreciation on
securities available for sale and the related hedges.


3.  PLEDGED ASSETS - Securities and loans pledged to secure public and trust
deposits, repurchase agreements and for other purposes as required or permitted
by law were $6.3 billion on June 30, 1996, $3.9 billion on December 31, 1995 and
$5.2 billion on June 30, 1995.


4.  CONTINGENT LIABILITIES  -  Standby letters of credit outstanding were $1.3
billion on June 30, 1996, $1.0 billion on December 31, 1995 and $848.0 million
on June 30, 1995.


5.  LOANS AND LEASES  -  Amounts outstanding in selected loan categories are
shown below:

<TABLE>
<CAPTION>
                                        June 30               December 31              June 30
                                       -------------------------------------------------------
(In Millions)                            1996                    1995                   1995
- ----------------------------------------------------------------------------------------------
<S>                                    <C>                   <C>                      <C>
Domestic
  Commercial                           $ 3,293.8                 $3,202.1             $3,185.6
  Residential Real Estate                4,300.8                  3,896.4              3,550.2
  Commercial Real Estate                   577.9                    512.6                471.1
  Broker                                   284.2                    304.0                241.8
  Consumer                                 803.4                    758.9                734.2
  Other                                    468.0                    625.5                673.3
  Lease Financing                          209.3                    202.3                163.4
- ----------------------------------------------------------------------------------------------
Total Domestic                           9,937.4                  9,501.8              9,019.6
International                              467.8                    404.2                402.2
- ----------------------------------------------------------------------------------------------

Total Loans and Leases                 $10,405.2                 $9,906.0             $9,421.8
- ----------------------------------------------------------------------------------------------
</TABLE>

7
<PAGE>
 
At June 30, 1996, other domestic and international loans include $588.6 million
of overnight trust-related advances in connection with next day security
settlements, compared with $810.4 million at December 31, 1995 and $842.1
million at June 30, 1995.

At June 30, 1996, nonperforming loans totaled $38.9 million. Included in this
amount were loans with a recorded investment of $35.4 million which were also
classified as impaired. A loan is impaired when, based on current information
and events, it is probable that a creditor will be unable to collect all amounts
due according to the contractual terms of the loan agreement. Impaired loans
totaling $14.6 million had no portion of the reserve for credit losses allocated
to them, while $20.8 million had an allocated reserve of $1.0 million. For the
second quarter of 1996, the total recorded investment in impaired loans averaged
$27.8 million. Total interest income recorded on impaired loans for the quarter
ended June 30, 1996 was $166 thousand, recognized principally on the cash-basis
method of accounting.

At June 30, 1995, nonperforming loans totaled $33.3 million and included $30.0
million of impaired loans. $26.0 million of these impaired loans had no reserve
allocation while $4.0 million had an allocated reserve of $.7 million. Impaired
loans for the second quarter of 1995 averaged $26.4 million with $230 thousand
of interest income recognized principally on the cash-basis method.

6.  RESERVE FOR CREDIT LOSSES - Changes in the reserve for credit losses were as
follows:

<TABLE>
<CAPTION>

                                          Six Months Ended June 30
- ------------------------------------------------------------------
(In Millions)                                 1996        1995
- ------------------------------------------------------------------
<S>                                           <C>         <C>
Balance at Beginning of Period              $147.1        $144.8
 Charge-Offs                                  (9.8)         (5.6)
 Recoveries                                    1.1           2.6
- ------------------------------------------------------------------
Net Charge-Offs                               (8.7)         (3.0)
- ------------------------------------------------------------------
Provision for Credit Losses                    9.0           3.0
Reserve Related to Acquisition                   -           1.1
- -----------------------------------------------------------------
Balance at End of Period                    $147.4        $145.9
- -----------------------------------------------------------------

</TABLE>

7.  ACQUISITIONS - In August 1996, Northern Trust Corporation entered into a
definitive agreement to acquire Metroplex Bancshares, Inc., parent company of
Bent Tree National Bank in Dallas, Texas for approximately $14.6 million in
cash. Bent Tree's assets totaled $80.4 million at June 30, 1996 and net income
totaled $1.1 million for the first six months of the year. The agreement is
subject to the approval of Metroplex shareholders and to various regulatory
approvals, and is expected to close in the the fourth quarter of 1996.

                                                                               8
<PAGE>
 
ITEM 2:    MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
               CONDITION AND RESULTS OF OPERATIONS


SECOND QUARTER EARNINGS HIGHLIGHTS

Net income for the second quarter totaled a record $63.4 million, an increase of
19% from the $53.1 million reported in the second quarter of 1995. Net income
per common share on a fully diluted basis increased 21% to $1.08 from $.89 in
1995. This earnings performance produced an annualized return on average common
equity (ROE) of 18.47% versus 17.09% reported last year, and an annualized
return on average assets (ROA) of 1.21% versus 1.13% in 1995. Total revenues on
a taxable equivalent basis in the quarter increased 13% to $299.5 million with
trust fees and net interest income at record levels, while noninterest expenses
increased 8%.


NONINTEREST INCOME

Noninterest income increased 16% and totaled $195.2 million for the quarter,
accounting for 65% of total taxable equivalent revenue. Trust fees of $148.7
million increased 21% or $25.4 million over the like period of 1995, and now
represent 76% of noninterest income and 50% of total taxable equivalent revenue.
Fees generated by RCB International, Inc. (RCB), an October 31, 1995
acquisition, accounted for $6.5 million of the trust fee growth. Exclusive of
these fees, trust fees increased 15% compared to the second quarter of last
year, driven by record new business, increased transaction volumes and higher
market values of trust assets. Trust assets under administration at June 30,
1996 increased 26% and totaled $692.9 billion compared to $549.3 billion a year
ago.

Trust fees from Corporate and Institutional Services (C&IS) increased $17.2
million to $76.4 million. Exclusive of the RCB contribution, C&IS trust fees
increased $10.7 million or 18% from the year-ago quarter. The increase in fees
reflects substantial new business, record securities lending results and strong
revenue growth in global custody, investment management and retirement services.
Net new business sold in the first half of the year has been strong and is
equivalent to all of the new business sold in 1995. The transition of this new
business sold to date is expected to continue through the third quarter of 1996.
Custody fees increased $3.4 million or 13% and totaled $30.4 million for the
quarter. The growth was particularly strong in global custody which was driven
by increased transaction-based fees and new business. Domestic securities
lending fees, up 63% versus last year, reflect a 46% increase in the volume of
securities loaned as well as a modest increase in the spread earned from the
investment of the cash collateral. International securities lending fees
increased 62% during the quarter, driven by a 58% increase in the volume of
securities loaned and an improved spread earned on the investment of the cash
collateral. Fees from retirement services generated by Hazlehurst & Associates,
Inc. increased 19%, principally from new business. Investment management fees
increased 41% driven by new business and growth in customized products tailored
to client needs.

9
<PAGE>
 
C&IS trust assets under administration grew 27% or $131.3 billion over last year
and now total $616.2 billion. C&IS trust assets under the management of Northern
Trust total $74.8 billion, up 43% from a year ago.

Trust fees from Personal Financial Services (PFS) increased 13% from the prior
year level of $64.1 million and totaled $72.3 million for the second quarter,
reflecting strong growth throughout Northern Trust's five-state network of PFS
offices. PFS trust fee growth resulted primarily from new business and higher
market values of the assets administered. Net new recurring business sold
through the first six months is up 25% from the year-ago period. During the
second quarter of 1996, Northern Trust expanded its distribution capabilities
for personal trust and private banking services with the opening of new offices
in Sun City West, Arizona, Stuart, Florida and Barrington, Illinois. At June 30,
1996, Northern Trust's network of PFS offices totaled 55 locations throughout
Illinois, Florida, California, Arizona and Texas. Trust fees from the four
states outside of Illinois now comprise about one-half of total PFS trust fees.
Total personal trust assets under administration increased $12.3 billion from
the prior year and totaled $76.7 billion at June 30, 1996, with $45.1 billion
under management.

Security commissions and trading income totaled $6.4 million compared with $5.2
million reported in the second quarter of 1995 due to higher brokerage
commission revenue at Northern Trust Securities, Inc. This increase resulted
primarily from a higher volume of trading activity by individual investors.

Other operating income totaled $40.0 million in the quarter, essentially
unchanged from the like quarter of 1995. The principal items included in other
operating income are foreign exchange trading profits and treasury management
fees. Foreign exchange trading profits were $15.1 million, an increase of 20%
from the first quarter of 1996 but down 3% from the strong performance in the
second quarter of 1995. Foreign exchange trading profits, generated in both
Chicago and London, are impacted by the level of cross-border investment
activities of Master Trust/Master Custody clients and market volatility. The fee
component of treasury management revenues rose 20% to $14.5 million compared to
the prior year. Total treasury management revenues, including both fees and the
computed value of compensating deposit balances, were $22.0 million,
representing a 13% increase from the second quarter of 1995. The compensating
deposit balances contributed to the increase in net interest income. The
improvement in treasury management revenues resulted from new business growth in
both paper- and electronic-based products. The year to year comparison of
treasury management revenues was also impacted by a $.7 million decrease in the
amount of FDIC insurance premiums that were passed through to clients in 1995
and included in treasury management results. Other operating income in the
second quarter of 1995 benefited by $1.3 million in gains from the sale of lease
residuals compared to nominal gains in the current quarter. In addition, other
operating income in the quarter reflected the elimination of float-related
compensation as a result of the Depository Trust Company's first quarter 1996
conversion to a same-day settlement basis for security transactions.

                                                                              10
<PAGE>
 
NET INTEREST INCOME

Net interest income for the second quarter totaled a record $95.5 million, 9%
higher than the $88.0 million reported in the second quarter of 1995. Net
interest income is defined as the total of interest income and amortized fees on
earning assets, less interest expense on deposits and borrowed funds, adjusted
for the impact of off-balance sheet hedging activity. When net interest income
is adjusted to a fully taxable equivalent (FTE) basis, yields on taxable,
nontaxable and partially taxable assets are comparable, although the adjustment
to a FTE basis has no impact on net income. Net interest income on a FTE basis
for the second quarter was $104.3 million, up 7% from the $97.5 million reported
in 1995. The increase in net interest income reflects growth in noninterest-
related funds and higher levels of earning assets, primarily in residential
mortgages, commercial and industrial loans and short-term U.S. Government and
federal agency securities. These factors were partially offset by a decline in
the net interest margin to 2.22% from 2.35% reported in the second quarter of
1995.

Earning assets for the second quarter averaged $18.9 billion, up 14% from the
$16.7 billion average for the second quarter of 1995. The $2.2 billion growth in
average earning assets reflected a 13% or $1.2 billion increase in average
loans, and a $.8 billion or 14% growth in average security holdings. Money
market assets totaled $2.0 billion on average for the quarter, up 13% from the
like period of 1995.

The loan growth was concentrated primarily in the domestic portfolio.
Residential mortgages increased 20% to average $4.2 billion and now comprise 41%
of the total average loan portfolio. Commercial and industrial loans averaged
$3.3 billion during the second quarter of 1996 compared to $3.1 billion last
year. Securities for the quarter increased $.8 billion on average to $6.7
billion, due primarily to a 21% increase in short-term U.S. Government and
federal agency securities.

Funding for the growth in earning assets came from several sources. Total
interest-bearing deposits averaged $10.0 billion, up $575 million from the
second quarter of 1995. This growth came principally from savings and money
market deposits (up $371 million), and foreign office time deposits (up $228
million). Short-term funds were also raised utilizing federal funds purchased,
repurchase agreements, and other borrowings. The growth in other borrowings was
concentrated primarily in higher treasury tax and loan account balances.
Noninterest-related funds increased $257 million and averaged $2.8 billion due
in large part to growth in common stockholders' equity. Common stockholders'
equity increased $159 million or 13% and averaged $1.35 billion due primarily to
growth in retained earnings. The remaining increase in noninterest-related funds
was concentrated in foreign demand and trust-related deposits. The net interest
margin decreased 13 basis points to 2.22% compared with 2.35% last year due
primarily to lower spreads earned on the higher volume of U.S. Government and
federal agency securities.

11
<PAGE>
 
PROVISION FOR CREDIT LOSSES

The provision for credit losses of $4.0 million was up $2.5 million from the low
level reported in the second quarter of 1995. For a discussion of the provision
and reserve for credit losses, refer to the Asset Quality section.


NONINTEREST EXPENSES

Noninterest expenses totaled $191.6 million for the quarter, up $13.7 million or
8% from $177.9 million in the second quarter of 1995. Operating expenses of the
two businesses acquired in the second half of 1995 accounted for approximately
$7.5 million of this increase, while the reduction in FDIC insurance premiums
during the second half of 1995 lowered expenses by $4.2 million. Expenses for
the current quarter were adversely affected by $4.1 million in costs
attributable to errors in the processing of three transactions by the capital
structures unit of global custody operations. Excluding the increases
attributable to acquisitions and these processing costs and the decline due to
lower FDIC premiums, expense growth would have been 4%. The increase in
noninterest expenses also reflects the support necessary for higher levels of
trust new business and treasury management and global custody volumes, as well
as costs associated with PFS office expansion.

Salaries and benefits, which represent 57% of total noninterest expenses,
increased to $108.4 million from $105.2 million in the year-ago quarter. The
principal items contributing to the change were merit increases, incentive
compensation, and staff additions resulting from 1995 acquisitions and to
support Northern Trust's growing trust activities. These increases were
partially offset by a decline in staff levels in other areas and cost savings
from changes in several benefit plans effective January 1, 1996. Staff on a 
full-time equivalent basis at June 30, 1996 totaled 6,698, up 3% from 6,531 at
the end of 1995.

Net occupancy expense totaled $15.6 million, up 2% from $15.3 million in the
second quarter of 1995, due in part to acquisitions and the opening of new
offices. The principal components of the increase were higher rent, real estate
taxes, and amortization and depreciation of leasehold improvements and
buildings, offset in part by lower levels of lease operating and building
maintenance costs.

Equipment expense, which includes depreciation, rental and maintenance costs,
totaled $13.8 million, up $1.8 million or 15% from the second quarter of 1995.
The principal components of the increase were higher levels of computer
equipment depreciation, maintenance and rental expenses.

Other operating expenses in the quarter totaled $53.8 million compared to $45.4
million last year. The $4.2 million reduction in FDIC insurance which took
effect in the second half of 1995 was offset by the $4.1 million in costs
attributable to processing errors within

                                                                              12
<PAGE>
 
global custody operations. Other operating expenses were also impacted by the
addition of professional service fees paid to RCB's network of investment
managers, and higher levels of software amortization, transaction-based
depository fees, and amortization expense of goodwill and other intangibles.

The components of other operating expenses were as follows:
<TABLE>
<CAPTION>

                                                  Quarter Ended June 30
                                                  ---------------------
(In Millions)                                         1996        1995
                                                      ----        ----

<S>                                                 <C>          <C>
Business Development                                 $ 6.7       $ 6.1
Purchased Professional Services                       18.3        14.0
Telecommunications                                     3.0         2.8
Postage and Supplies                                   5.3         5.3
FDIC Premium                                            --         4.2
Software Amortization                                  8.6         7.4
Goodwill and Other Intangibles Amortization
  Amortization                                         2.4         1.6
Other Expense                                          9.5         4.0
                                                     _____       _____
Total Other Operating Expenses                       $53.8       $45.4
                                                     -----       -----
</TABLE>

PROVISION FOR INCOME TAXES

The provision for income taxes was $31.7 million for the second quarter compared
with $24.0 million in the year-ago quarter. The higher tax provision in 1996
resulted from the growth in taxable earnings for both federal and state income
tax purposes and a decline in tax-exempt income from the prior year. The
effective tax rate was 33% for 1996 versus 31% in 1995.


SIX MONTHS EARNINGS HIGHLIGHTS

Net income totaled $124.9 million for the six months ended June 30, 1996
compared to $102.4 million last year, an increase of 22%. On a fully diluted
basis, net income per common share also increased 22% to $2.12. The ROE for the
six month period was 18.41% versus 16.97% one year ago, while the ROA improved
to 1.20% from 1.11% in the same period of last year.

Noninterest income increased 16% to $382.9 million from $330.1 million in the
like period of 1995. Noninterest income comprised 65% of total taxable
equivalent revenue. Trust fees totaled $292.6 million, up 20% from $244.1
million last year. Security commissions and trading income totaled $12.7
million, up $1.6 million or 15% from the $11.1 million earned last year. Foreign
exchange trading profits were at record levels and totaled $27.6 million. The
fee portion of treasury management revenues totaled $27.5 million, up 12% from
the $24.4 million reported in 1995. Total treasury management revenues, which,
in addition to fees, include the computed value of compensating deposit
balances, increased

13
<PAGE>
 
10% and totaled $42.5 million. These compensating deposit balances also
contributed to the improvement in net interest income.

Net interest income stated on a fully taxable equivalent basis totaled $206.3
million, up 5% from the $195.6 million in the like period of 1995. The provision
for credit losses increased $6.0 million to $9.0 million in 1996. Net loan
charge-offs increased to $8.7 million from $3.0 million in the prior year.
Noninterest expenses totaled $375.6 million, up 6% from $355.2 million in 1995.


BALANCE SHEET

Total assets at June 30, 1996 were $21.8 billion and averaged $20.9 billion for
the first six months, up 13% from last year's average of $18.6 billion. Due to
increased lending activity, in addition to the July 31, 1995 acquisition of
Tanglewood Bank, loans and leases grew to $10.4 billion at June 30, 1996, and
averaged $10.0 billion for the first six months. This compares with $9.4 billion
in total loans at June 30, 1995 and $8.8 billion on average for the first six
months of last year.

Driven primarily by continued strong earnings growth and the first quarter 1996
conversion of the Series E convertible preferred stock, common stockholders'
equity increased 15% to average $1.34 billion for the first six months, versus
$1.17 billion last year. Total stockholders' equity averaged $1.47 billion
compared with $1.34 billion in 1995.

During the quarter, the Northern Trust Corporation acquired 590,211 of its own
shares at a total cost of $32.6 million pursuant to the 4 million share buyback
program authorized by the Board of Directors in 1994. This brought the total
number of shares acquired in 1996 to 1,156,517 leaving an additional 1.1 million
shares remaining to be acquired under this program. Northern Trust's risk-based
capital ratios remained strong at 8.4% for tier 1 and 11.7% for total capital at
June 30, 1996. These capital ratios are well above the minimum regulatory
requirements of 4% for tier 1 and 8% for total risk-based capital ratios. The
leverage ratio (tier 1 capital to second quarter average assets) of 6.2% at June
30, 1996, also exceeded the regulatory requirement of 3%.


ASSET QUALITY

Nonperforming assets consist of nonaccrual loans, restructured loans and other
real estate owned (OREO). Nonperforming assets at June 30, 1996 totaled $40.5
million, compared with $33.7 million at December 31, 1995 and $34.5 million at
June 30, 1995. Nonaccrual and restructured loans and leases, consisting
primarily of commercial loans, totaled $38.9 million, or .37% of total loans and
leases at June 30, 1996. Included in this total are commercial real estate loans
of $29.0 million. At December 31, 1995 and June 30, 1995, nonaccrual and
restructured loans and leases totaled $31.9 million and $33.3 million,
respectively.

                                                                              14
<PAGE>
 
The following Nonperforming Asset table presents the outstanding amounts of
nonaccrual loans and leases, restructured loans and OREO.  Also shown are
loans that have interest or principal payments that are delinquent 90 days
or more and are still accruing interest.  The balance in this category at
any quarter end can fluctuate widely based on the timing of cash
collections, renegotiations and renewals.

Nonperforming Assets and 90 Day Past Due Loans and Leases
<TABLE>
<CAPTION>

                                                 June 30       March 31       December 31       June 30
(In Millions)                                      1996          1996            1995             1995
- ------------------------------------------------------------------------------------------------------------------
<S>                                               <C>            <C>             <C>              <C>
Nonaccrual Loans and Leases
Domestic                                          $36.2          $27.9           $29.0            $29.8
International                                       -              -                .2               .7
- ------------------------------------------------------------------------------------------------------------------
Total Nonaccrual Loans and Leases                  36.2           27.9            29.2             30.5
Restructured Loans                                  2.7            2.7             2.7              2.8
OREO                                                1.6            1.5             1.8              1.2
- ------------------------------------------------------------------------------------------------------------------
Total Nonperforming Assets                        $40.5          $32.1           $33.7            $34.5
- ------------------------------------------------------------------------------------------------------------------
Total 90 Day Past Due Loans
(still accruing)                                  $14.6          $36.9           $22.0            $14.1
- ------------------------------------------------------------------------------------------------------------------
</TABLE>

PROVISION AND RESERVE FOR CREDIT LOSSES.  The provision for credit losses
is the charge against current earnings that is determined by management
through a disciplined credit review process as the amount needed to
maintain a reserve that is sufficient to absorb credit losses inherent in
the loan and lease portfolios and other credit undertakings.  While the
largest portion of this reserve is intended to cover loan and lease losses,
it is considered a general reserve that is available to cover all credit-
related exposures.

The 1996 second quarter provision for credit losses was $4.0 million,
compared with $1.5 million in the second quarter of 1995.  Net charge-offs
totaled $3.8 million in the second quarter of 1996, versus $1.4 million
last year.  The reserve for credit losses was $147.4 million or 1.42% of
outstanding loans at June 30, 1996.  This compares with $147.1 million or
1.49% of outstanding loans at December 31, 1995 and $145.9 million or 1.55%
of outstanding loans at June 30, 1995.  The lower reserve to outstanding
loans ratio at June 30, 1996 is attributable to loan growth, a significant
portion of which is in low-risk residential mortgage lending.

The overall credit quality of the domestic portfolio has remained good as
evidenced by the low level of nonperforming loans and relatively moderate
level of net charge-offs.  Management's assessment of the current U.S.
economy and the financial condition of certain clients facing financial
difficulties together with the types of loans creating portfolio growth
were primary factors impacting management's decision to maintain the
reserve for credit losses at $147.4 million at June 30, 1996, essentially
unchanged from

15
<PAGE>

December 31, 1995 and slightly higher than June 30, 1995. Although difficult to
predict, management presently expects that the provision for credit losses for
the balance of 1996 will be somewhat above the very low level experienced in the
comparable period of 1995.

Management continues to monitor closely several credits, but the overall quality
of its loan portfolio remains sound and the reserve for credit losses is
adequate to cover credit-related uncertainties as they exist today. Established
credit review procedures ensure that close attention is given to commercial real
estate-related loans and other commercial loans, as well as other credit
exposures that might be adversely affected by significant increases in interest
rates or unexpected downturns in segments of the economies of the United States
or other countries.

                                                                              16
<PAGE>

The following schedule should be read in conjunction with the Net Interest
Income section of Management's Discussion and Analysis of Financial Condition
and Results of Operations.

<TABLE>
<CAPTION>

CONSOLIDATED ANALYSIS OF NET INTEREST INCOME

                                                                                  Second Quarter
                                                        -------------------------------------------------------------------
(Interest and rate on a taxable equivalent basis)                      1996                                1995
                                                        ----------------------------------    -----------------------------
<S>                                                     <C>         <C>            <C>       <C>        <C>          <C> 
($ in Millions)                                         Interest       Volume        Rate     Interest    Volume      Rate
- -----------------------------------------------------   ----------  ------------    ------    --------  ----------   ------
Average Earning Assets
Money Market Assets
    Federal Funds Sold and Securities Purchased
    under Agreements to Resell                            $  3.4    $   254.4        5.51%     $  3.9   $   258.2     6.21%  
    Time Deposits with Banks                                20.9      1,678.2        4.99        20.8     1,483.8     5.62
    Other                                                     .8         54.6        5.80          .3        13.9     6.68
- -----------------------------------------------------     ------    ---------       -----      ------   ---------    ----- 
Total Money Market Assets                                   25.1      1,987.2        5.08        25.0     1,755.9     5.72
- -----------------------------------------------------     ------    ---------       -----      ------   ---------    ----- 
Securities                                                        
    U.S. Government                                         29.8      2,123.9        5.64        12.8       915.4     5.59
    Obligations of States and Political Subdivisions        10.4        419.7        9.88        12.0       440.4    10.95
    Federal Agency                                          55.5      3,975.4        5.62        65.9     4,115.6     6.42
    Other                                                    3.4        227.6        5.93         5.9       376.8     6.25
    Trading Account                                           .1          9.1        7.60         1.0        57.5     6.77
- -----------------------------------------------------     ------    ---------       -----      ------   ---------    ----- 
Total Securities                                            99.2      6,755.7        5.90        97.6     5,905.7     6.62
- -----------------------------------------------------     ------    ---------       -----      ------   ---------    ----- 
Loans and Leases                                           170.6     10,176.7        6.74       158.0     8,973.7     7.06
- -----------------------------------------------------     ------    ---------       -----      ------   ---------    ----- 
Total Earning Assets                                      $294.9    $18,919.6        6.27%     $280.6   $16,635.3     6.76%
- -----------------------------------------------------     ------    ---------       -----      ------   ---------    ----- 
Average Source of Funds                                           
Deposits                                                          
    Savings and Money Market Deposits                     $ 28.6    $ 3,659.6        3.14%     $ 27.4   $ 3,289.0     3.34%
    Savings Certificates                                    29.3      2,053.6        5.75        30.6     2,000.9     6.12
    Other Time                                               6.2        462.6        5.40         8.0       539.5     5.95
    Foreign Offices Time                                    45.5      3,807.2        4.81        47.2     3,579.0     5.30
- -----------------------------------------------------     ------    ---------       -----      ------   ---------    ----- 
Total Deposits                                             109.6      9,983.0        4.42       113.2     9,408.4     4.83
Federal Funds Purchased                                     22.5      1,717.9        5.27        16.1     1,068.6     6.04
Securities Sold Under Agreements to Repurchase              28.0      2,153.1        5.23        25.0     1,666.5     6.02
Commercial Paper                                             2.0        142.9        5.38         2.2       146.3     5.96
Other Borrowings                                            18.7      1,516.3        4.97        15.9     1,162.1     5.51
Senior Notes                                                 3.4        254.5        5.26         5.8       379.7     6.04
Notes Payable                                                6.4        335.9        7.67         4.9       244.7     8.04
- -----------------------------------------------------     ------    ---------       -----      ------   ---------    ----- 
Total Interest-Related Funds                               190.6     16,103.6        4.76       183.1    14,076.3     5.22
- -----------------------------------------------------     ------    ---------       -----      ------   ---------    ----- 
Interest Rate Spread                                           -            -        1.51%          -          -      1.54%
- -----------------------------------------------------     ------    ---------       -----      ------   ---------    -----   
Noninterest-Related Funds                                      -      2,816.0           -           -     2,559.0        -
- -----------------------------------------------------     ------    ---------       ------     ------   ---------    ----- 
Total Source of Funds                                     $190.6    $18,919.6        4.05%     $183.1   $16,635.3     4.41%
- -----------------------------------------------------     ------    ---------       -----      ------   ---------    ----- 
Net Interest Income/Margin                                $104.3            -        2.22%     $ 97.5           -     2.35%
- -----------------------------------------------------     ------    ---------       -----      ------    --------    ----- 

ANALYSIS OF NET INTEREST INCOME CHANGES
DUE TO VOLUME AND RATE
                                                             Second Quarter 1996/95                Six Months 1996/95
                                                         ---------------------------------    -----------------------------
                                                         Change Due To                        Change Due To
                                                         -----------------------              --------------------           
(In Millions)                                              Volume       Rate        Total      Volume        Rate    Total
- -----------------------------------------------------    ---------  ------------    ------    --------   ---------   ------
Earning Assets                                          $ 34.3      $   (20.0)      $14.3      $ 68.6   $   (31.6)   $37.0
Interest-Related Funds                                    24.6          (17.1)        7.5        50.0       (23.7)    26.3
- -----------------------------------------------------   ------      ---------       -----     -------    --------    ----- 
Net Interest Income                                     $  9.7      $    (2.9)      $ 6.8      $ 18.6   $    (7.9)   $10.7
- -----------------------------------------------------   ------      ---------       -----     -------    --------    ----- 
</TABLE> 

17
<PAGE>


<TABLE>
<CAPTION> 
                                         NORTHERN TRUST CORPORATION
   
                          Six Months    
- -------------------------------------------------------------------
               1996                               1995   
- ----------------------------------    -----------------------------
<S>         <C>            <C>       <C>         <C>         <C>
 Interest      Volume        Rate     Interest    Volume      Rate
- ---------   ------------    ------    --------   ---------   ------
 $  7.2      $   260.8       5.59%     $  7.4    $   245.9    6.11%
   43.7        1,711.7       5.13        47.5      1,669.1    5.74
    1.6           54.0       5.93          .5         14.1    6.47
- ---------   ------------    ------    --------   ---------   ------
   52.5        2,026.5       5.21        55.4      1,929.1    5.79
- ---------   ------------    ------    --------   ---------   ------

   59.4        2,104.2       5.67        25.8        953.7    5.45
   20.9          420.9       9.94        24.5        446.7   11.00
  112.7        3,966.0       5.71       127.6      3,997.6    6.44
    7.3          245.0       5.98        11.9        379.5    6.30
     .3            9.3       7.42         1.5         42.0    7.22
- ---------   ------------    ------    --------   ---------   ------
  200.6        6,745.4       5.98       191.3      5,819.5    6.62
- ---------   ------------    ------    --------   ---------   ------
  335.3        9,977.0       6.76       304.7      8,756.0    7.02
- ---------   ------------    ------    --------   ---------   ------
 $588.4      $18,748.9       6.31%     $551.4    $16,504.6    6.74%
- ---------   ------------    ------    --------   ---------   ------

 $ 56.7      $ 3,618.6       3.15%     $ 54.0    $ 3,276.1    3.32%
   60.2        2,081.9       5.82        55.1      1,860.0    5.97
   14.6          537.0       5.47        14.4        498.3    5.82
   89.6        3,692.3       4.88        97.8      3,744.5    5.27
- ---------   ------------    ------    --------   ---------   ------
  221.1        9,929.8       4.48       221.3      9,378.9    4.76
   51.2        1,930.7       5.34        32.2      1,095.4    5.92
   54.1        2,065.1       5.27        49.1      1,681.6    5.89
    3.9          143.3       5.42         4.3        145.1    5.90
   31.5        1,247.2       5.08        26.4        986.0    5.41
    7.5          284.4       5.25        12.7        424.4    5.97
   12.8          335.4       7.65         9.8        244.8    8.09
- ---------   ------------    ------    --------   ---------   ------
  382.1       15,935.9       4.82       355.8     13,956.2    5.14
- ---------   ------------    ------    --------   ---------   ------
      -              -       1.49%          -            -    1.60%
- ---------   ------------    ------    --------   ---------   ------
      -        2,813.0          -           -      2,548.4       -
- ---------   ------------    ------    --------   ---------   ------
 $382.1      $18,748.9       4.10%     $355.8    $16,504.6    4.35%
- ---------   ------------    ------    --------   ---------   ------
 $206.3              -       2.21%     $195.6            -    2.39%
- ---------   ------------    ------    --------   ---------   ------
</TABLE>
                                                                              18
<PAGE>
 
                          PART II - OTHER INFORMATION

     Item 6.   Exhibits and Reports on Form 8-K

         (a.)  Exhibits
               --------

               Exhibit (10) (i)   Form of Employment Security Agreement dated
                                  March 1, 1996 entered or to be entered into
                                  between Northern Trust Corporation and each of
                                  7 officers - as amended.

                            (ii)  Form of Employment Security Agreement dated
                                  May 21, 1996 entered or to be entered into
                                  between Northern Trust Corporation and each of
                                  30 officers - supersedes Form of Agreement
                                  dated March 23, 1986.

                            (iii) Form of Employment Security Agreement dated
                                  May 21, 1996 entered or to be entered into
                                  between Northern Trust Corporation and each of
                                  8 officers.

                            (iv)  Form of Employment Security Agreement dated
                                  May 21, 1996 entered or to be entered into
                                  between Northern Trust Corporation and each of
                                  16 officers -supersedes Form of Agreement
                                  dated March 23, 1986. 
 
                            (v)   Implementation Agreement dated June 26, 1996
                                  between the Registrant, The Northern Trust 
                                  Company, the ESOP Trust and NationsBank 
                                  (South) N.A. as Trustee.

                            (vi)  Term Loan Agreement between the ESOP Trust
                                  and the Registrant dated June 28, 1996.
 
               Exhibit (11)       Computation of Per Share Earnings
 
               Exhibit (27)       Financial Data Schedule
 
         (b.)  Reports on Form 8-K
               -------------------
 
               In a report on Form 8-K dated April 17, 1996, Northern Trust
               incorporated by reference in Item 5 its April 16, 1996 press
               release, reporting on its earnings for first quarter of 1996. The
               press release, with summary financial information, was filed
               pursuant to Item 7.

19
<PAGE>
 
                                   SIGNATURES

     Pursuant to the requirements of 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.

                                NORTHERN TRUST CORPORATION
                                --------------------------
                                         (Registrant)



     Date:  August 12, 1996     By: Perry R. Pero
                                    -----------------
                                    Perry R. Pero
                                    Senior Executive Vice President
                                    and Chief Financial Officer



     Date:  August 12, 1996     By: Harry W. Short
                                    ------------------
                                    Harry W. Short
                                    Senior Vice President and Controller
                                    (Chief Accounting Officer)


                                                                              20
<PAGE>

                                 EXHIBIT INDEX
                                 -------------

<TABLE> 
<CAPTION> 

The following exhibits have been filed herewith:

Exhibit
Number          Description
- ------          -----------
 <C>            <S>  
 (10) (i)       Form of Employment Security Agreement dated March 1, 1996
                entered or to be entered into between Northern Trust Corporation
                and each of 7 officers - as amended.

      (ii)      Form of Employment Security Agreement dated May 21, 1996 entered
                or to be entered into between Northern Trust Corporation and
                each of 30 officers - supersedes Form of Agreement dated March
                23, 1986.

      (iii)     Form of Employment Security Agreement dated May 21, 1996 entered
                or to be entered into between Northern Trust Corporation and
                each of 8 officers.

      (iv)      Form of Employment Security Agreement dated May 21, 1996 entered
                or to be entered into between Northern Trust Corporation and
                each of 16 officers -supersedes Form of Agreement dated March
                23, 1986.

      (v)       Implementation Agreement dated June 26, 1996 between the
                Registrant, The Northern Trust Company, the ESOP Trust and
                NationsBank (South) N.A. as Trustee.

      (vi)      Term Loan Agreement between the ESOP Trust and the Registrant
                dated June 28, 1996.
                
 (11)           Computation of Per Share Earnings
 
 (27)           Financial Data Schedule
 
</TABLE> 
21

<PAGE>
  
                                                          EXHIBIT NUMBER (10)(i)
                                                            To 6/30/96 FORM 10-Q


                         EMPLOYMENT SECURITY AGREEMENT
                         -----------------------------


     THIS EMPLOYMENT SECURITY AGREEMENT is entered into this ____________ day of
__________________, 1996, between NORTHERN TRUST CORPORATION, a Delaware
corporation (the "Company"), and
____________________________________________________ (the "Executive").

                                WITNESSETH THAT:
                                --------------- 

     WHEREAS, Executive is employed by the Company or one of its wholly-owned
subsidiaries (referred to collectively as the "Company") and the Company desires
to provide certain security to Executive in connection with any potential change
in control of the Company; and

     WHEREAS, the Company and the Executive entered into an Employment Security
Agreement dated as of ________________, 19__ with respect to the Executive's
employment following a change in control of the Company (which agreement, as it
has been amended from time to time and supplemented by subsequent letter
agreements, is referred to in this Agreement as the "Prior Agreement"); and

     WHEREAS, the Executive and the Company wish to supersede the Prior
Agreement with this Agreement;

     NOW, THEREFORE, it is hereby agreed by and between the parties, for good
and valuable consideration the receipt and sufficiency of which are hereby
acknowledged, as follows:

1.   Payments and Benefits Upon a Change in Control.  If within two (2) years
     after a Change in Control (as defined below) or during the Period Pending a
     Change in Control (as defined below), (i) the Company shall terminate
     Executive's employment with the Company without Good Cause (as defined
     below), or (ii) Executive shall voluntarily terminate such employment with
     Good Reason (as defined below), the Company shall, within 30 days of
     Executive's Employment Termination (as defined below), make the payments
     and provide the benefits described below.

     (a)  Cash Payment.  The Company shall make a lump sum cash payment to
          Executive equal to three times the Executive's Annual Compensation 
          (as defined below).

     (b)  Short-Year Bonus.  The Company shall make a lump sum cash payment to
          Executive equal to a pro rata portion (based on the date on which
          Executive's Employment Termination occurs) of the average of the
          annual amounts paid to Executive under the Management Performance Plan
          or any successor plan (the "MPP"), the Annual Performance Plan or any
          successor plan (the "APP"), the Specialized Incentive Plans or any
          successor plans (the "SIP") and any other cash-based incentive or
          bonus plans, with respect to the last three full fiscal years of
          Executive's participation in such plans prior to Employment
          Termination or, if higher, prior to the Change in Control.  For
          purposes of the preceding sentence, if Executive's number of full
          fiscal years of participation in the MPP, APP, SIP, and other cash-
          based plan prior to the Change in Control is less than three, the
          average amount shall be calculated as the average of the annual
          amounts paid to Executive over the number of full fiscal years of
          Executive's participation in the MPP, APP, SIP, and other plans prior
          to the

                                      -1-
<PAGE>
 
          Change in Control, or the number of full fiscal years of Executive's
          participation in the MPP, APP, SIP, and other plans prior to
          Employment Termination, whichever produces a higher average annual
          amount. The provisions of this paragraph (b) shall supersede any
          provisions of the APP relating to bonus amounts in the event of a
          Change in Control, and the amount paid to the Executive under this
          paragraph shall be in lieu of any amount that would be payable in the
          event of a Change in Control under the APP.

     (c)  Welfare Benefit Plans.  With respect to each Welfare Benefit Plan (as
          defined below), for the period beginning on Executive's Employment
          Termination and ending on the earlier of (i) three years following
          Executive's Employment Termination, or (ii) the date Executive becomes
          covered by a welfare benefit plan or program maintained by an entity
          other than the Company which provides coverage or benefits at least
          equal, in all respects, to such Welfare Benefit Plan, Executive shall
          continue to participate in such Welfare Benefit Plan on the same basis
          and at the same cost to Executive as was the case immediately prior to
          the Change in Control (or, if more favorable to Executive, as was the
          case at any time hereafter), or, if any benefit or coverage cannot be
          provided under a Welfare Benefit Plan because of applicable law or
          contractual provisions, Executive shall be provided with substantially
          similar benefits and coverage for such period. Immediately following
          the expiration of the continuation period required by the preceding
          sentence, Executive shall be entitled to continued group health
          benefit plan coverage (so-called "COBRA coverage") in accordance with
          Section 4980B of the Internal Revenue Code of 1986, as amended (the
          "Code"), it being intended that COBRA coverage shall be consecutive to
          the benefits and coverage provided for in the preceding sentence.
          Executive's eligibility for, and premium contribution level under, The
          Northern Trust Retiree Medical Care Plan and The Northern Trust
          Medicare Supplemental Plan and any similar or successor plans or
          programs maintained or contributed to by the Company, shall be
          determined by adding three years to Executive's age and years of
          service at Executive's Employment Termination.

     (d)  Supplemental Retirement Plans.  All amounts accrued or accumulated on
          behalf of Executive under the Supplemental Pension Plan for Employees
          of The Northern Trust Company (the "SERP"), the Supplemental Thrift-
          Incentive Plan for Employees of The Northern Trust Company (the
          "Supplemental TIP") and the Supplemental Employee Stock Ownership Plan
          for Employees of The Northern Trust Company (the "Supplemental ESOP")
          will immediately be fully vested upon the Change in Control, and the
          Company shall promptly pay or distribute all such amounts to Executive
          in accordance with the terms of such plans as in effect on the date of
          this Agreement (or as of Executive's Employment Termination, if more
          favorable to Executive).
    
     (e)  Stock Incentive Plans.  All stock options granted under the Northern
          Trust Corporation Amended 1985 Incentive Stock Plan (the "1985 ISP"),
          the Northern Trust Corporation 1992 Incentive Stock Plan (the "1992
          ISP"), the Northern Trust Corporation Amended 1992 Incentive Stock
          Plan (the "1995 ISP") and any other stock plan or program
          (collectively referred to as the "ISPs"), will immediately become
          fully vested and exercisable upon the Change in Control.  All
          restricted stock granted under the ISPs will immediately be fully
          vested and distributed to Executive upon the Change in Control.  With
          respect to performance shares granted under the ISPs pursuant to the
          Northern Trust Corporation Long Term Incentive Plan ("LTIP") or
          otherwise, upon the Change in Control: (i) all performance shares

                                      -2-
<PAGE>

          credited to Executive's performance share account will be immediately
          distributed to Executive (together with any other amounts then
          credited to Executive's performance share account); (ii) a pro rata
          portion of all performance shares awarded to Executive but not then
          credited to Executive's performance share account will be immediately
          distributed to Executive; and (iii) Executive will remain eligible for
          crediting to Executive's performance share account as of the end of
          the performance period, in accordance with the provisions of the LTIP
          in effect as of the Change in Control, any remaining performance
          shares awarded to Executive but not distributed in accordance with
          this paragraph.

     (f)  Salary to Date of Employment Termination.  The Company shall pay to
          Executive any unpaid salary or other compensation of any kind earned
          with respect to any period prior to Executive's Employment Termination
          and a lump sum cash payment for accumulated but unused vacation earned
          through such Employment Termination.

2.   Definitions.  For purposes of this Agreement:
    
     (a)  "Good Cause" shall mean: (i) Executive's conviction of any criminal
          violation involving dishonesty, fraud, or breach of trust; (ii)
          Executive's willful engagement in any misconduct in the performance of
          Executive's duty that materially injures the Company; (iii)
          Executive's performance of any act which, if known to the customers,
          clients, stockholders or regulators of the Company or any of its
          subsidiaries, would materially and adversely impact on the business of
          the Company or any of its subsidiaries; (iv) any act or omission by
          Executive that causes a regulatory body with jurisdiction over the
          Company or any of its subsidiaries, to demand, request, or recommend
          that Executive be suspended or removed from any position in which
          Executive serves with the Company or any of its subsidiaries; or (v)
          Executive's willful and substantial nonperformance of assigned duties,
          provided that such nonperformance has continued more than ten days
          after the Company has given written notice of such nonperformance and
          of its intention to terminate Executive's employment because of such
          nonperformance.

     (b)  "Good Reason" shall exist if, without Executive's express written
          consent:

          (i)    The Company shall materially reduce the nature, scope, level or
                 extent of Executive's responsibilities from the nature, scope,
                 level or extent of such responsibilities prior to the Change in
                 Control, or shall fail to provide Executive with adequate
                 office facilities and support services to perform such
                 responsibilities;

          (ii)   The Company shall reduce Executive's salary below that in
                 effect as of the date of this Agreement (or as of the Change in
                 Control, if greater);

          (iii)  The Company shall require Executive to relocate Executive's
                 principal business office or his principal place of residence
                 outside the ______________, ______________ Standard
                 Metropolitan Statistical Area (the "Geographical Employment
                 Area"), or assign to Executive duties that would reasonably
                 require such relocation;

                                      -3-
<PAGE>
 
          (iv)   The Company shall require Executive, or assign duties to
                 Executive which would reasonably require Executive, to spend
                 more than fifty normal working days away from the Geographical
                 Employment Area during any consecutive twelve-month period; or

          (v)    The Company shall fail to continue in effect any cash or stock-
                 based incentive or bonus plan, retirement plan, welfare benefit
                 plan, or other benefit plan, program or arrangement, unless the
                 aggregate value (as computed by an independent employee
                 benefits consultant selected by the Company) of all such
                 compensation, retirement and benefit plans, programs and
                 arrangements provided to Executive is not materially less than
                 their aggregate value as of the date of this Agreement (or as
                 of the Change in Control, if greater).

     (c)  "Change in Control" shall be deemed to occur on the earliest of:

          (i)    The receipt by the Company of a Schedule 13D or other statement
                 filed under Section 13(d) of the Securities Exchange Act of
                 1934, as amended (the "Exchange Act"), indicating that any
                 entity, person, or group has acquired beneficial ownership, as
                 that term is defined in Rule 13d-3 under the Exchange Act, of
                 more than 30% of the outstanding capital stock of the Company
                 entitled to vote for the election of directors ("voting
                 stock");

          (ii)   The commencement by an entity, person, or group (other than the
                 Company or a subsidiary of the Company) of a tender offer or an
                 exchange offer for more than 20% of the outstanding voting
                 stock of the Company;

          (iii)  The effective time of (A) a merger or consolidation of the
                 Company with one or more other corporations as a result of
                 which the holders of the outstanding voting stock of the
                 Company immediately prior to such merger or consolidation hold
                 less than 60% of the voting stock of the surviving or resulting
                 corporation, or (B) a transfer of substantially all of the
                 property of the Company other than to an entity of which the
                 Company owns at least 80% of the voting stock; or

          (iv)   The election to the Board of Directors of the Company, without
                 the recommendation or approval of the incumbent Board of
                 Directors of the Company, of the lesser of: (A) three
                 directors; or (B) directors constituting a majority of the
                 number of directors of the Company then in office.

     (d)  "Annual Compensation" shall mean the sum of: (i) Executive's salary
          at the greater of (A) Executive's salary rate in effect on the date of
          the Change in Control, or (B) Executive's salary rate in effect on
          Executive's Employment Termination; and (ii) the Amounts Payable Under
          Any Cash Bonus Plans (as defined below) in which Executive
          participates.

     (e)  "Employment Termination" shall mean the effective date of: (i)
          Executive's voluntary termination of employment with the Company with
          Good Reason; or (ii) the termination of Executive's employment by the
          Company without Good Cause.

                                      -4-
<PAGE>
 
     (f)  "Welfare Benefit Plan" shall mean each welfare benefit plan maintained
          or contributed to by the Company, including, but not limited to a plan
          that provides health (including medical and dental), life, accident or
          disability benefits or insurance, or similar coverage, in which
          Executive was participating at the time of the Change in Control.

     (g)  "Amounts Payable Under Any Cash Bonus Plans" shall mean the sum of
          whichever of the following are applicable to Executive: (i) the amount
          that would be awarded to Executive under the MPP, assuming the target
          award percentage was applicable and Executive was employed for the
          full fiscal year in which Executive's Employment Termination occurs;
          (ii) the average of the annual amounts paid to Executive under the APP
          with respect to the last three full fiscal years of Executive's
          participation in the APP prior to Employment Termination or, if
          higher, prior to the Change in Control; (iii) the average of the
          annual amounts paid to Executive under the SIPs with respect to the
          last three full fiscal years of Executive's participation in the SIPs
          prior to Employment Termination or, if higher, prior to the Change in
          Control; and (iv) the average of the annual amounts paid to Executive
          under any other cash-based incentive or bonus plans in which Executive
          participates after the date of this Agreement with respect to the last
          three full fiscal years of Executive's participation in such plans
          prior to Employment Termination or, if higher, prior to the Change in
          Control. For purposes of the preceding sentence, if Executive's number
          of full fiscal years of participation in the APP, SIP, or other cash-
          based plan prior to the Change in Control is less than three, the
          amount under clause (ii), (iii) or (iv) of this paragraph shall be
          calculated as the average of the annual amounts paid to Executive over
          the number of full fiscal years of Executive's participation in the
          APP, SIP, or other plans prior to the Change in Control, or the number
          of full fiscal years of Executive's participation in the APP, SIP, or
          other plans prior to Employment Termination, whichever produces a
          higher average annual amount.

     (h)  "Period Pending a Change in Control" shall mean the period after the
          approval by the Company's stockholders and prior to the effective time
          of (A) a merger or consolidation of the Company with one or more other
          corporations as a result of which the holders of the outstanding
          voting stock of the Company immediately prior to such merger or
          consolidation hold less than 60% of the voting stock of the surviving
          or resulting corporation, or (B) a transfer of substantially all of
          the property of the Company other than to an entity of which the
          Company owns at least 80% of the voting stock.

3.   Certain Additional Payments by the Company.
    

     (a)  Gross-Up.  Anything in this Agreement to the contrary notwithstanding,
          in the event that any payment or distribution by or on behalf of the
          Company to or for the benefit of Executive (whether paid or payable or
          distributed or distributable pursuant to the terms of this Agreement
          or otherwise, but determined without regard to any additional payments
          required under this Section 3) (the "Payments") is determined to be an
          "excess parachute payment" pursuant to Code Section 280G or any
          successor or substitute provision of the Code, with the effect that
          Executive is liable for the payment of the excise tax described in
          Code Section 4999 or any successor or substitute provision of the
          Code, or any interest or penalties are

                                      -5-
<PAGE>
 
          incurred by Executive with respect to such Payments (such excise tax,
          together with any such interest and penalties, are hereinafter
          collectively referred to as the "Excise Tax"), then Executive shall be
          entitled to receive an additional payment (the "Gross-Up Payment") in
          an amount such that after payment by Executive of all taxes imposed
          upon the Gross-Up Payment, including, without limitation, federal,
          state, local or other income taxes, FICA taxes, and additional Excise
          Tax (and any interest and penalties imposed with respect to such
          taxes), Executive retains a portion of the Gross-Up Payment equal to
          the Excise Tax imposed upon the Payments.

     (b)  Determination of Gross-Up.  Subject to the provisions of Section 3(c),
          all determinations required to be made under this Section 3, including
          whether and when a Gross-Up Payment is required and the amount of such
          Gross-Up Payment and the assumptions to be utilized in arriving at
          such determination, shall be made by the public accounting firm that
          serves as the Company's auditors (the "Accounting Firm"), which shall
          provide detailed supporting calculations both to the Company and
          Executive within 15 business days of the receipt of notice from the
          Company or Executive that there have been Payments, or such earlier
          time as is requested by the Company. In the event that the Accounting
          Firm is serving as accountant or auditor for the individual, entity or
          group effecting the Change in Control, Executive shall designate
          another nationally recognized accounting firm to make the
          determinations required hereunder (which accounting firm shall then be
          referred to as the Accounting Firm hereunder). All fees and expenses
          of the Accounting Firm shall be borne solely by the Company. Any 
          Gross-Up Payment, as determined pursuant to this Section 3, shall be
          paid by the Company to Executive within five days after the receipt by
          the Company and Executive of the Accounting firm's determination. If
          the Accounting Firm determines that no Excise Tax is payable by
          Executive, it shall furnish Executive with a written opinion that
          failure to report the Excise Tax on Executive's applicable federal
          income tax return would not result in the imposition of a negligence
          or similar penalty. Any determination by the Accounting Firm shall be
          binding upon the Company and Executive, except as provided in
          paragraph (c) below.

     (c)  IRS Claims.  As a result of the uncertainty in the application of
          Section 4999 of the Code at the time of the initial determination by
          the Accounting Firm hereunder, it is possible that the Internal
          Revenue Service or other agency will claim that a greater Excise Tax
          is due, and thus a greater amount of Gross-Up Payment should have been
          made by the Company than that determined pursuant to paragraph (b)
          above (an "Underpayment").  In the event that Executive is required to
          make a payment of any such Excise Tax, the Accounting Firm shall
          determine the amount of the Underpayment that has occurred, if any,
          and such Underpayment shall be promptly paid by the Company to or for
          the benefit of the Executive.  Executive shall notify the Company in
          writing of any claim by the Internal Revenue Service or other agency
          that, if successful, would require the payment by the Company of the
          Gross-Up Payment or an Underpayment.

4.   Mitigation and Set-Off.  Executive shall not be required to mitigate
     Executive's damages by seeking other employment or otherwise.  The
     Company's obligations under this Agreement shall not be reduced in any way
     by reason of any compensation or benefits received (or foregone) by
     Executive from sources other than the Company after Executive's Employment
    
                                      -6-
<PAGE>
 
     Termination, or any amounts that might have been received by Executive in
     other employment had Executive sought such other employment. Executive's
     entitlement to benefits and coverage under this Agreement shall continue
     after, and shall not be affected by, Executive's obtaining other employment
     after his Employment Termination, provided that any such benefit or
     coverage shall not be furnished if Executive expressly waives the specific
     benefit or coverage by giving written notice of waiver to the Company.

5.   Litigation Expenses.  The Company shall pay to Executive all out-of-pocket
     expenses, including attorneys' fees, incurred by Executive in the event
     Executive successfully enforces any provision of this Agreement in any
     action, arbitration or lawsuit.

6.   Assignment; Successors.  This Agreement may not be assigned by the Company
     without the written consent of Executive but the obligations of the Company
     under this Agreement shall be the binding legal obligations of any
     successor to the Company by merger, consolidation or otherwise, and in the
     event of any business combination or transaction that results in the
     transfer of substantially all of the assets or business of the Company, the
     Company will cause the transferee to assume the obligations of the Company
     under this Agreement.  This Agreement may not be assigned by Executive
     during Executive's life, and upon Executive's death will inure to the
     benefit of Executive's heirs, legatees and legal representatives of
     Executive's estate.

7.   Interpretation.  The validity, interpretation, construction and performance
     of this Agreement shall be governed by the laws of the State of Illinois,
     without regard to the conflict of law principles thereof.  The invalidity
     or unenforceability of any provision of this Agreement shall not affect the
     validity or enforceability of any other provision of this Agreement.

8.   Withholding.  The Company may withhold from any payment that it is required
     to make under this Agreement amounts sufficient to satisfy applicable
     withholding requirements under any federal, state or local law.

9.   Amendment or Termination.  This Agreement may be amended at any time by
     written agreement between the Company and Executive.  The Company may
     terminate this Agreement by written notice given to Executive at least two
     years prior to the effective date of such termination, provided that, if a
     Change in Control occurs prior to the effective date such termination, the
     termination of this Agreement shall not be effective and Executive shall be
     entitled to the full benefits of this Agreement.  Any such amendment or
     termination shall be made pursuant to a resolution of the Board.

10.  Financing.  Cash and benefit payments under this Agreement shall constitute
     general obligations of the Company.  Executive shall have only an unsecured
     right to payment thereof out of the general assets of the Company.
     Notwithstanding the foregoing, the Company may, by agreement with one or
     more trustees to be selected by the Company, create a trust on such terms
     as the Company shall determine to make payments to Executive in accordance
     with the terms of this Agreement.
     
11.  Severability.  In the event that any provision or portion of this Agreement
     shall be determined to be invalid or unenforceable for any reason, the
     remaining provisions of this Agreement shall be unaffected thereby and
     shall remain in full force and effect.

                                      -7-
<PAGE>
 
12.  Other Agreements. This Agreement supersedes and cancels the Prior
     Agreement, and all prior written or oral agreements and understandings
     relating to the terms of this Agreement or the Prior Agreement.


IN WITNESS WHEREOF, the parties hereto have executed this Agreement on the day
and year first written above.

NORTHERN TRUST CORPORATION


By:_________________________
                                        ______________________________
 Its:_______________________                       Executive

                                      -8-

<PAGE>

                                                         Exhibit Number (10)(ii)
                                                            To 6/30/96 Form 10-Q

                         EMPLOYMENT SECURITY AGREEMENT
                         -----------------------------


     THIS EMPLOYMENT SECURITY AGREEMENT is entered into this 21st day of May,
1996, between NORTHERN TRUST CORPORATION, a Delaware corporation (the
"Company"), and (NAME) (the "Executive").

                               WITNESSETH THAT:
                               --------------- 

     WHEREAS, Executive is employed by the Company or one of its wholly-owned
subsidiaries (referred to collectively as the "Company") and the Company desires
to provide certain security to Executive in connection with any potential change
in control of the Company; and

     WHEREAS, the Company and the Executive entered into an Employment Security
Agreement dated as of (DATE) with respect to the Executive's employment
following a change in control of the Company (which agreement, as it has been
supplemented by subsequent letter agreements, is referred to in this Agreement
as the "Prior Agreement"); and

     WHEREAS, the Executive and the Company wish to supersede the Prior
Agreement with this Agreement;

     NOW, THEREFORE, it is hereby agreed by and between the parties, for good
and valuable consideration the receipt and sufficiency of which are hereby
acknowledged, as follows:

1.   Payments and Benefits Upon a Change in Control.  If within two (2) years
     after a Change in Control (as defined below) or during the Period Pending a
     Change in Control (as defined below), (i) the Company shall terminate
     Executive's employment with the Company without Good Cause (as defined
     below), or (ii) Executive shall voluntarily terminate such employment with
     Good Reason (as defined below), the Company shall, within 30 days of
     Executive's Employment Termination (as defined below), make the payments
     and provide the benefits described below.

     (a)  Cash Payment.  The Company shall make a lump sum cash payment to
          Executive equal to two times the Executive's Annual Compensation (as
          defined below).

     (b)  Short-Year Bonus.  The Company shall make a lump sum cash payment to
          Executive equal to a pro rata portion (based on the date on which
          Executive's Employment Termination occurs) of the average of the
          annual amounts paid to Executive under the Management Performance Plan
          or any successor plan (the "MPP"), the Annual Performance Plan or any
          successor plan (the "APP"), the
<PAGE>
 
          Specialized Incentive Plans or any successor plans (the "SIP") and any
          other cash-based incentive or bonus plans, with respect to the last
          three full fiscal years of Executive's participation in such plans
          prior to Employment Termination or, if higher, prior to the Change in
          Control. For purposes of the preceding sentence, if Executive's number
          of full fiscal years of participation in the MPP, APP, SIP, and other
          cash-based plan prior to the Change in Control is less than three, the
          average amount shall be calculated as the average of the annual
          amounts paid to Executive over the number of full fiscal years of
          Executive's participation in the MPP, APP, SIP, and other plans prior
          to the Change in Control, or the number of full fiscal years of
          Executive's participation in the MPP, APP, SIP, and other plans prior
          to Employment Termination, whichever produces a higher average annual
          amount. The provisions of this paragraph (b) shall supersede any
          provisions of the APP relating to bonus amounts in the event of a
          Change in Control, and the amount paid to the Executive under this
          paragraph shall be in lieu of any amount that would be payable in the
          event of a Change in Control under the APP.

  (c)     Welfare Benefit Plans. With respect to each Welfare Benefit Plan (as
          defined below), for the period beginning on Executive's Employment
          Termination and ending on the earlier of (i) two years following
          Executive's Employment Termination, or (ii) the date Executive becomes
          covered by a welfare benefit plan or program maintained by an entity
          other than the Company which provides coverage or benefits at least
          equal, in all respects, to such Welfare Benefit Plan, Executive shall
          continue to participate in such Welfare Benefit Plan on the same basis
          and at the same cost to Executive as was the case immediately prior to
          the Change in Control (or, if more favorable to Executive, as was the
          case at any time hereafter), or, if any benefit or coverage cannot be
          provided under a Welfare Benefit Plan because of applicable law or
          contractual provisions, Executive shall be provided with substantially
          similar benefits and coverage for such period. Immediately following
          the expiration of the continuation period required by the preceding
          sentence, Executive shall be entitled to continued group health
          benefit plan coverage (so-called "COBRA coverage") in accordance with
          Section 4980B of the Internal Revenue Code of 1986, as amended (the
          "Code"), it being intended that COBRA coverage shall be consecutive to
          the benefits and coverage provided for in the preceding sentence.
          Executive's eligibility for, and premium contribution level under, The
          Northern Trust Retiree Medical Care Plan and The Northern Trust
          Medicare Supplemental Plan and any similar or successor plans or
          programs maintained or contributed to by the Company, shall be
          determined by adding two years to Executive's age and years of service
          at Executive's Employment Termination.

     (d)  Supplemental Retirement Plans.  All amounts accrued or accumulated on
          behalf of Executive under the Supplemental Pension Plan for Employees
          of The Northern Trust Company (the "SERP"), the Supplemental Thrift-
          Incentive Plan for Employees of The Northern Trust Company (the
          "Supplemental TIP") and the Supplemental Employee Stock Ownership Plan
          for Employees of The

                                                                               2
<PAGE>
 
          Northern Trust Company (the "Supplemental ESOP") will immediately be
          fully vested upon the Change in Control, and the Company shall
          promptly pay or distribute all such amounts to Executive in accordance
          with the terms of such plans as in effect on the date of this
          Agreement (or as of Executive's Employment Termination, if more
          favorable to Executive).

     (e)  Stock Incentive Plans. All stock options granted under the Northern
          Trust Corporation Amended 1985 Incentive Stock Plan (the "1985 ISP"),
          the Northern Trust Corporation 1992 Incentive Stock Plan (the "1992
          ISP"), the Northern Trust Corporation Amended 1992 Incentive Stock
          Plan (the "1995 ISP") and any other stock plan or program
          (collectively referred to as the "ISPs"), will immediately become
          fully vested and exercisable upon the Change in Control. All
          restricted stock granted under the ISPs will immediately be fully
          vested and distributed to Executive upon the Change in Control. With
          respect to performance shares granted under the ISPs pursuant to the
          Northern Trust Corporation Long Term Incentive Plan ("LTIP") or
          otherwise, upon the Change in Control: (i) all performance shares
          credited to Executive's performance share account will be immediately
          distributed to Executive (together with any other amounts then
          credited to Executive's performance share account); (ii) a pro rata
          portion of all performance shares awarded to Executive but not then
          credited to Executive's performance share account will be immediately
          distributed to Executive; and (iii) Executive will remain eligible for
          crediting to Executive's performance share account as of the end of
          the performance period, in accordance with the provisions of the LTIP
          in effect as of the Change in Control, any remaining performance
          shares awarded to Executive but not distributed in accordance with
          this paragraph.

     (f)  Salary to Date of Employment Termination.  The Company shall pay to
          Executive any unpaid salary or other compensation of any kind earned
          with respect to any period prior to Executive's Employment Termination
          and a lump sum cash payment for accumulated but unused vacation earned
          through such Employment Termination.

2.   Definitions.  For purposes of this Agreement:
     -----------                                  

     (a)  "Good Cause" shall mean: (i) Executive's conviction of any criminal
          violation involving dishonesty, fraud, or breach of trust; (ii)
          Executive's willful engagement in any misconduct in the performance of
          Executive's duty that materially injures the Company; (iii)
          Executive's performance of any act which, if known to the customers,
          clients, stockholders or regulators of the Company or any of its
          subsidiaries, would materially and adversely impact on the business of
          the Company or any of its subsidiaries; (iv) any act or omission by
          Executive that causes a regulatory body with jurisdiction over the
          Company or any of its subsidiaries, to demand, request, or recommend
          that Executive be suspended or removed from any position in which
          Executive serves with the Company or any of its subsidiaries; or (v)
          Executive's willful and substantial nonperformance

                                                                               3
<PAGE>
 
          of assigned duties, provided that such nonperformance has continued
          more than ten days after the Company has given written notice of such
          nonperformance and of its intention to terminate Executive's
          employment because of such nonperformance.

     (b)  "Good Reason" shall exist if, without Executive's express written
          consent:

          (i)    The Company shall materially reduce the nature, scope, level or
                 extent of Executive's responsibilities from the nature, scope,
                 level or extent of such responsibilities prior to the Change in
                 Control, or shall fail to provide Executive with adequate
                 office facilities and support services to perform such
                 responsibilities;

          (ii)   The Company shall reduce Executive's salary below that in
                 effect as of the date of this Agreement (or as of the Change in
                 Control, if greater);

          (iii)  The Company shall require Executive to relocate Executive's
                 principal business office or his principal place of residence
                 outside the (LOCATION) Standard Metropolitan Statistical Area
                 (the "Geographical Employment Area"), or assign to Executive
                 duties that would reasonably require such relocation;

          (iv)   The Company shall require Executive, or assign duties to
                 Executive which would reasonably require Executive, to spend
                 more than fifty normal working days away from the Geographical
                 Employment Area during any consecutive twelve-month period; or

          (v)    The Company shall fail to continue in effect any cash or stock-
                 based incentive or bonus plan, retirement plan, welfare benefit
                 plan, or other benefit plan, program or arrangement, unless the
                 aggregate value (as computed by an independent employee
                 benefits consultant selected by the Company) of all such
                 compensation, retirement and benefit plans, programs and
                 arrangements provided to Executive is not materially less than
                 their aggregate value as of the date of this Agreement (or as
                 of the Change in Control, if greater).

     (c)  "Change in Control" shall be deemed to occur on the earliest of:

          (i)    The receipt by the Company of a Schedule 13D or other statement
                 filed under Section 13(d) of the Securities Exchange Act of
                 1934, as amended (the "Exchange Act"), indicating that any
                 entity, person, or group has acquired beneficial ownership, as
                 that term is defined in Rule 13d-3 under the Exchange Act, of
                 more than 30% of the outstanding capital stock of the Company
                 entitled to vote for the election of directors ("voting
                 stock");

                                                                               4
<PAGE>
 
          (ii)   The commencement by an entity, person, or group (other than the
                 Company or a subsidiary of the Company) of a tender offer or an
                 exchange offer for more than 20% of the outstanding voting
                 stock of the Company;

          (iii)  The effective time of (A) a merger or consolidation of the
                 Company with one or more other corporations as a result of
                 which the holders of the outstanding voting stock of the
                 Company immediately prior to such merger or consolidation hold
                 less than 60% of the voting stock of the surviving or resulting
                 corporation, or (B) a transfer of substantially all of the
                 property of the Company other than to an entity of which the
                 Company owns at least 80% of the voting stock; or

          (iv)   The election to the Board of Directors of the Company, without
                 the recommendation or approval of the incumbent Board of
                 Directors of the Company, of the lesser of: (A) three
                 directors; or (B) directors constituting a majority of the
                 number of directors of the Company then in office.

     (d)  "Annual Compensation" shall mean the sum of: (i) Executive's salary at
          the greater of (A) Executive's salary rate in effect on the date of
          the Change in Control, or (B) Executive's salary rate in effect on
          Executive's Employment Termination; and (ii) the Amounts Payable Under
          Any Cash Bonus Plans (as defined below) in which Executive
          participates.

     (e)  "Employment Termination" shall mean the effective date of: (i)
          Executive's voluntary termination of employment with the Company with
          Good Reason; or (ii) the termination of Executive's employment by the
          Company without Good Cause.

     (f)  "Welfare Benefit Plan" shall mean each welfare benefit plan maintained
          or contributed to by the Company, including, but not limited to a plan
          that provides health (including medical and dental), life, accident or
          disability benefits or insurance, or similar coverage, in which
          Executive was participating at the time of the Change in Control.

     (g)  "Amounts Payable Under Any Cash Bonus Plans" shall mean the sum of
          whichever of the following are applicable to Executive:  (i) the
          amount that would be awarded to Executive under the MPP, assuming the
          target award percentage was applicable and Executive was employed for
          the full fiscal year in which Executive's Employment Termination
          occurs; (ii) the average of the annual amounts paid to Executive under
          the APP with respect to the last three full fiscal years of
          Executive's participation in the APP prior to Employment Termination
          or, if higher, prior to the Change in Control; (iii) the average of
          the

                                                                               5
<PAGE>
 
          annual amounts paid to Executive under the SIPs with respect to the
          last three full fiscal years of Executive's participation in the SIPs
          prior to Employment Termination or, if higher, prior to the Change in
          Control; and (iv) the average of the annual amounts paid to Executive
          under any other cash-based incentive or bonus plans in which Executive
          participates after the date of this Agreement with respect to the last
          three full fiscal years of Executive's participation in such plans
          prior to Employment Termination or, if higher, prior to the Change in
          Control. For purposes of the preceding sentence, if Executive's number
          of full fiscal years of participation in the APP, SIP, or other cash-
          based plan prior to the Change in Control is less than three, the
          amount under clause (ii), (iii) or (iv) of this paragraph shall be
          calculated as the average of the annual amounts paid to Executive over
          the number of full fiscal years of Executive's participation in the
          APP, SIP, or other plans prior to the Change in Control, or the number
          of full fiscal years of Executive's participation in the APP, SIP, or
          other plans prior to Employment Termination, whichever produces a
          higher average annual amount.

     (h)  "Period Pending a Change in Control" shall mean the period after the
          approval by the Company's stockholders and prior to the effective time
          of (A) a merger or consolidation of the Company with one or more other
          corporations as a result of which the holders of the outstanding
          voting stock of the Company immediately prior to such merger or
          consolidation hold less than 60% of the voting stock of the surviving
          or resulting corporation, or (B) a transfer of substantially all of
          the property of the Company other than to an entity of which the
          Company owns at least 80% of the voting stock.

3.   Certain Additional Payments by the Company.
     ------------------------------------------ 

     (a)  Gross-Up.  Anything in this Agreement to the contrary notwithstanding,
          in the event that any payment or distribution by or on behalf of the
          Company to or for the benefit of Executive (whether paid or payable or
          distributed or distributable pursuant to the terms of this Agreement
          or otherwise, but determined without regard to any additional payments
          required under this Section 3) (the "Payments") is determined to be an
          "excess parachute payment" pursuant to Code Section 280G or any
          successor or substitute provision of the Code, with the effect that
          Executive is liable for the payment of the excise tax described in
          Code Section 4999 or any successor or substitute provision of the
          Code, or any interest or penalties are incurred by Executive with
          respect to such Payments (such excise tax, together with any such
          interest and penalties, are hereinafter collectively referred to as
          the "Excise Tax"), then Executive shall be entitled to receive an
          additional payment (the "Gross-Up Payment") in an amount such that
          after payment by Executive of all taxes imposed upon the Gross-Up
          Payment, including, without limitation, federal, state, local or other
          income taxes, FICA taxes, and additional Excise Tax (and any interest
          and penalties imposed with respect to such taxes), Executive retains a
          portion of the Gross-Up Payment equal to the Excise Tax imposed upon
          the Payments.

                                                                               6
<PAGE>
 
     (b)  Determination of Gross-Up.  Subject to the provisions of Section 3(c),
          all determinations required to be made under this Section 3, including
          whether and when a Gross-Up Payment is required and the amount of such
          Gross-Up Payment and the assumptions to be utilized in arriving at
          such determination, shall be made by the public accounting firm that
          serves as the Company's auditors (the "Accounting Firm"), which shall
          provide detailed supporting calculations both to the Company and
          Executive within 15 business days of the receipt of notice from the
          Company or Executive that there have been Payments, or such earlier
          time as is requested by the Company.  In the event that the Accounting
          Firm is serving as accountant or auditor for the individual, entity or
          group effecting the Change in Control, Executive shall designate
          another nationally recognized accounting firm to make the
          determinations required hereunder (which accounting firm shall then be
          referred to as the Accounting Firm hereunder).  All fees and expenses
          of the Accounting Firm shall be borne solely by the Company.  Any
          Gross-Up Payment, as determined pursuant to this Section 3, shall be
          paid by the Company to Executive within five days after the receipt by
          the Company and Executive of the Accounting firm's determination.  If
          the Accounting Firm determines that no Excise Tax is payable by
          Executive, it shall furnish Executive with a written opinion that
          failure to report the Excise Tax on Executive's applicable federal
          income tax return would not result in the imposition of a negligence
          or similar penalty.  Any determination by the Accounting Firm shall be
          binding upon the Company and Executive, except as provided in
          paragraph (c) below.

     (c)  IRS Claims. As a result of the uncertainty in the application of
          Section 4999 of the Code at the time of the initial determination by
          the Accounting Firm hereunder, it is possible that the Internal
          Revenue Service or other agency will claim that a greater Excise Tax
          is due, and thus a greater amount of Gross-Up Payment should have been
          made by the Company than that determined pursuant to paragraph (b)
          above (an "Underpayment"). In the event that Executive is required to
          make a payment of any such Excise Tax, the Accounting Firm shall
          determine the amount of the Underpayment that has occurred, if any,
          and such Underpayment shall be promptly paid by the Company to or for
          the benefit of the Executive. Executive shall notify the Company in
          writing of any claim by the Internal Revenue Service or other agency
          that, if successful, would require the payment by the Company of the
          Gross-Up Payment or an Underpayment.

4.   Mitigation and Set-Off. Executive shall not be required to mitigate
     Executive's damages by seeking other employment or otherwise. The Company's
     obligations under this Agreement shall not be reduced in any way by reason
     of any compensation or benefits received (or foregone) by Executive from
     sources other than the Company after Executive's Employment Termination, or
     any amounts that might have been received by Executive in other employment
     had Executive sought such other

                                                                               7
<PAGE>
 
          employment. Executive's entitlement to benefits and coverage under
          this Agreement shall continue after, and shall not be affected by,
          Executive's obtaining other employment after his Employment
          Termination, provided that any such benefit or coverage shall not be
          furnished if Executive expressly waives the specific benefit or
          coverage by giving written notice of waiver to the Company.

5.   Litigation Expenses. The Company shall pay to Executive all out-of-pocket
     expenses, including attorneys' fees, incurred by Executive in the event
     Executive successfully enforces any provision of this Agreement in any
     action, arbitration or lawsuit.

6.   Assignment; Successors. This Agreement may not be assigned by the Company
     without the written consent of Executive but the obligations of the Company
     under this Agreement shall be the binding legal obligations of any
     successor to the Company by merger, consolidation or otherwise, and in the
     event of any business combination or transaction that results in the
     transfer of substantially all of the assets or business of the Company, the
     Company will cause the transferee to assume the obligations of the Company
     under this Agreement. This Agreement may not be assigned by Executive
     during Executive's life, and upon Executive's death will inure to the
     benefit of Executive's heirs, legatees and legal representatives of
     Executive's estate.

7.   Interpretation.  The validity, interpretation, construction and performance
     of this Agreement shall be governed by the laws of the State of Illinois,
     without regard to the conflict of law principles thereof.  The invalidity
     or unenforceability of any provision of this Agreement shall not affect the
     validity or enforceability of any other provision of this Agreement.

8.   Withholding.  The Company may withhold from any payment that it is required
     to make under this Agreement amounts sufficient to satisfy applicable
     withholding requirements under any federal, state or local law.

9.   Amendment or Termination.  This Agreement may be amended at any time by
     written agreement between the Company and Executive.  The Company may
     terminate this Agreement by written notice given to Executive at least two
     years prior to the effective date of such termination, provided that, if a
     Change in Control occurs prior to the effective date such termination, the
     termination of this Agreement shall not be effective and Executive shall be
     entitled to the full benefits of this Agreement.  Any such amendment or
     termination shall be made pursuant to a resolution of the Board.

10.  Financing.  Cash and benefit payments under this Agreement shall constitute
     general obligations of the Company.  Executive shall have only an unsecured
     right to payment thereof out of the general assets of the Company.
     Notwithstanding the foregoing, the Company may, by agreement with one or
     more trustees to be selected by the Company, create a trust on such terms
     as the Company shall determine to make payments to Executive in accordance
     with the terms of this Agreement.

                                                                               8
<PAGE>
 
     11.  Severability. In the event that any provision or portion of this
          Agreement shall be determined to be invalid or unenforceable for any
          reason, the remaining provisions of this Agreement shall be unaffected
          thereby and shall remain in full force and effect.

     12.  Other Agreements. This Agreement supersedes and cancels the Prior
          Agreement, and all prior written or oral agreements and understandings
          relating to the terms of this Agreement or the Prior Agreement.


IN WITNESS WHEREOF, the parties hereto have executed this Agreement on the day
and year first written above.

NORTHERN TRUST CORPORATION


By:
   -----------------------                            -------------------------
 Its:                                                                 Executive
     ---------------------
                                                                               9

<PAGE>
                                                        Exhibit Number (10)(iii)
                                                            To 6/30/96 Form 10-Q


                         EMPLOYMENT SECURITY AGREEMENT
                         -----------------------------


     THIS EMPLOYMENT SECURITY AGREEMENT is entered into this 21st day of May,
1996, between NORTHERN TRUST CORPORATION, a Delaware corporation (the
"Company"), and (NAME) (the "Executive").

                               WITNESSETH THAT:
                               --------------- 

     WHEREAS, Executive is employed by the Company or one of its wholly-owned
subsidiaries (referred to collectively as the "Company") and the Company desires
to provide certain security to Executive in connection with any potential change
in control of the Company; and

     NOW, THEREFORE, it is hereby agreed by and between the parties, for good
and valuable consideration the receipt and sufficiency of which are hereby
acknowledged, as follows:

1.   Payments and Benefits Upon a Change in Control. If within two (2) years
     after a Change in Control (as defined below) or during the Period Pending a
     Change in Control (as defined below), (i) the Company shall terminate
     Executive's employment with the Company without Good Cause (as defined
     below), or (ii) Executive shall voluntarily terminate such employment with
     Good Reason (as defined below), the Company shall, within 30 days of
     Executive's Employment Termination (as defined below), make the payments
     and provide the benefits described below.

     (a)  Cash Payment. The Company shall make a lump sum cash payment to
          Executive equal to two times the Executive's Annual Compensation (as
          defined below).

     (b)  Short-Year Bonus. The Company shall make a lump sum cash payment to
          Executive equal to a pro rata portion (based on the date on which
          Executive's Employment Termination occurs) of the average of the
          annual amounts paid to Executive under the Management Performance Plan
          or any successor plan (the "MPP"), the Annual Performance Plan or any
          successor plan (the "APP"), the Specialized Incentive Plans or any
          successor plans (the "SIP") and any other cash-based incentive or
          bonus plans, with respect to the last three full fiscal years of
          Executive's participation in such plans prior to Employment
          Termination or, if higher, prior to the Change in Control. For
          purposes of the preceding sentence, if Executive's number of full
          fiscal years of participation in the MPP, APP, SIP, and other cash-
          based plan prior to the Change in Control is less than three, the
          average amount shall be calculated as the average of the annual
          amounts paid to Executive over the number of full fiscal years of
          Executive's participation in the MPP, APP, SIP, and other plans prior
          to the Change in Control, or the number of full fiscal years of
          Executive's participation in the MPP, APP, SIP, and other plans prior
          to Employment Termination, whichever produces a higher average annual
          amount. The provisions of this paragraph (b)
<PAGE>
 
          shall supersede any provisions of the APP relating to bonus amounts in
          the event of a Change in Control, and the amount paid to the Executive
          under this paragraph shall be in lieu of any amount that would be
          payable in the event of a Change in Control under the APP.

     (c)  Welfare Benefit Plans. With respect to each Welfare Benefit Plan (as
          defined below), for the period beginning on Executive's Employment
          Termination and ending on the earlier of (i) two years following
          Executive's Employment Termination, or (ii) the date Executive becomes
          covered by a welfare benefit plan or program maintained by an entity
          other than the Company which provides coverage or benefits at least
          equal, in all respects, to such Welfare Benefit Plan, Executive shall
          continue to participate in such Welfare Benefit Plan on the same basis
          and at the same cost to Executive as was the case immediately prior to
          the Change in Control (or, if more favorable to Executive, as was the
          case at any time hereafter), or, if any benefit or coverage cannot be
          provided under a Welfare Benefit Plan because of applicable law or
          contractual provisions, Executive shall be provided with substantially
          similar benefits and coverage for such period. Immediately following
          the expiration of the continuation period required by the preceding
          sentence, Executive shall be entitled to continued group health
          benefit plan coverage (so-called "COBRA coverage") in accordance with
          Section 4980B of the Internal Revenue Code of 1986, as amended (the
          "Code"), it being intended that COBRA coverage shall be consecutive to
          the benefits and coverage provided for in the preceding sentence.
          Executive's eligibility for, and premium contribution level under, The
          Northern Trust Retiree Medical Care Plan and The Northern Trust
          Medicare Supplemental Plan and any similar or successor plans or
          programs maintained or contributed to by the Company, shall be
          determined by adding two years to Executive's age and years of service
          at Executive's Employment Termination.

     (d)  Supplemental Retirement Plans. All amounts accrued or accumulated on
          behalf of Executive under the Supplemental Pension Plan for Employees
          of The Northern Trust Company (the "SERP"), the Supplemental Thrift-
          Incentive Plan for Employees of The Northern Trust Company (the
          "Supplemental TIP") and the Supplemental Employee Stock Ownership Plan
          for Employees of The Northern Trust Company (the "Supplemental ESOP")
          will immediately be fully vested upon the Change in Control, and the
          Company shall promptly pay or distribute all such amounts to Executive
          in accordance with the terms of such plans as in effect on the date of
          this Agreement (or as of Executive's Employment Termination, if more
          favorable to Executive).

     (e)  Stock Incentive Plans. All stock options granted under the Northern
          Trust Corporation Amended 1985 Incentive Stock Plan (the "1985 ISP"),
          the Northern Trust Corporation 1992 Incentive Stock Plan (the "1992
          ISP"), the Northern Trust Corporation Amended 1992 Incentive Stock
          Plan (the "1995 ISP") and any other stock plan or program
          (collectively referred to as the "ISPs"), will immediately become
          fully vested and exercisable upon the Change in Control. All
          restricted stock granted under the ISPs will immediately be fully
          vested and distributed to Executive upon the Change in Control. With
          respect to

                                                                               2
<PAGE>
 
          performance shares granted under the ISPs pursuant to the Northern
          Trust Corporation Long Term Incentive Plan ("LTIP") or otherwise, upon
          the Change in Control: (i) all performance shares credited to
          Executive's performance share account will be immediately distributed
          to Executive (together with any other amounts then credited to
          Executive's performance share account); (ii) a pro rata portion of all
          performance shares awarded to Executive but not then credited to
          Executive's performance share account will be immediately distributed
          to Executive; and (iii) Executive will remain eligible for crediting
          to Executive's performance share account as of the end of the
          performance period, in accordance with the provisions of the LTIP in
          effect as of the Change in Control, any remaining performance shares
          awarded to Executive but not distributed in accordance with this
          paragraph.

     (f)  Salary to Date of Employment Termination. The Company shall pay to
          Executive any unpaid salary or other compensation of any kind earned
          with respect to any period prior to Executive's Employment Termination
          and a lump sum cash payment for accumulated but unused vacation earned
          through such Employment Termination.

2.   Definitions.  For purposes of this Agreement:
     -----------                                  

     (a)  "Good Cause" shall mean: (i) Executive's conviction of any criminal
          violation involving dishonesty, fraud, or breach of trust; (ii)
          Executive's willful engagement in any misconduct in the performance of
          Executive's duty that materially injures the Company; (iii)
          Executive's performance of any act which, if known to the customers,
          clients, stockholders or regulators of the Company or any of its
          subsidiaries, would materially and adversely impact on the business of
          the Company or any of its subsidiaries; (iv) any act or omission by
          Executive that causes a regulatory body with jurisdiction over the
          Company or any of its subsidiaries, to demand, request, or recommend
          that Executive be suspended or removed from any position in which
          Executive serves with the Company or any of its subsidiaries; or (v)
          Executive's willful and substantial nonperformance of assigned duties,
          provided that such nonperformance has continued more than ten days
          after the Company has given written notice of such nonperformance and
          of its intention to terminate Executive's employment because of such
          nonperformance.

     (b)  "Good Reason" shall exist if, without Executive's express written
          consent:

          (i)    The Company shall materially reduce the nature, scope, level or
                 extent of Executive's responsibilities from the nature, scope,
                 level or extent of such responsibilities prior to the Change in
                 Control, or shall fail to provide Executive with adequate
                 office facilities and support services to perform such
                 responsibilities;

          (ii)   The Company shall reduce Executive's salary below that in
                 effect as of the date of this Agreement (or as of the Change in
                 Control, if greater);

                                                                               3
<PAGE>
 
          (iii)  The Company shall require Executive to relocate Executive's
                 principal business office or his principal place of residence
                 outside the (LOCATION) Standard Metropolitan Statistical Area
                 (the "Geographical Employment Area"), or assign to Executive
                 duties that would reasonably require such relocation;

          (iv)   The Company shall require Executive, or assign duties to
                 Executive which would reasonably require Executive, to spend
                 more than fifty normal working days away from the Geographical
                 Employment Area during any consecutive twelve-month period; or

          (v)    The Company shall fail to continue in effect any cash or stock-
                 based incentive or bonus plan, retirement plan, welfare benefit
                 plan, or other benefit plan, program or arrangement, unless the
                 aggregate value (as computed by an independent employee
                 benefits consultant selected by the Company) of all such
                 compensation, retirement and benefit plans, programs and
                 arrangements provided to Executive is not materially less than
                 their aggregate value as of the date of this Agreement (or as
                 of the Change in Control, if greater).

     (c)  "Change in Control" shall be deemed to occur on the earliest of:

          (i)    The receipt by the Company of a Schedule 13D or other statement
                 filed under Section 13(d) of the Securities Exchange Act of
                 1934, as amended (the "Exchange Act"), indicating that any
                 entity, person, or group has acquired beneficial ownership, as
                 that term is defined in Rule 13d-3 under the Exchange Act, of
                 more than 30% of the outstanding capital stock of the Company
                 entitled to vote for the election of directors ("voting
                 stock");

          (ii)   The commencement by an entity, person, or group (other than the
                 Company or a subsidiary of the Company) of a tender offer or an
                 exchange offer for more than 20% of the outstanding voting
                 stock of the Company;

          (iii)  The effective time of (A) a merger or consolidation of the
                 Company with one or more other corporations as a result of
                 which the holders of the outstanding voting stock of the
                 Company immediately prior to such merger or consolidation hold
                 less than 60% of the voting stock of the surviving or resulting
                 corporation, or (B) a transfer of substantially all of the
                 property of the Company other than to an entity of which the
                 Company owns at least 80% of the voting stock; or

          (iv)   The election to the Board of Directors of the Company, without
                 the recommendation or approval of the incumbent Board of
                 Directors of the Company, of the lesser of: (A) three
                 directors; or (B) directors constituting a majority of the
                 number of directors of the Company then in office.

                                                                               4
<PAGE>
 
     (d)  "Annual Compensation" shall mean the sum of: (i) Executive's salary at
          the greater of (A) Executive's salary rate in effect on the date of
          the Change in Control, or (B) Executive's salary rate in effect on
          Executive's Employment Termination; and (ii) the Amounts Payable Under
          Any Cash Bonus Plans (as defined below) in which Executive
          participates.

     (e)  "Employment Termination" shall mean the effective date of: (i)
          Executive's voluntary termination of employment with the Company with
          Good Reason; or (ii) the termination of Executive's employment by the
          Company without Good Cause.

     (f)  "Welfare Benefit Plan" shall mean each welfare benefit plan maintained
          or contributed to by the Company, including, but not limited to a plan
          that provides health (including medical and dental), life, accident or
          disability benefits or insurance, or similar coverage, in which
          Executive was participating at the time of the Change in Control.

     (g)  "Amounts Payable Under Any Cash Bonus Plans" shall mean the sum of
          whichever of the following are applicable to Executive: (i) the amount
          that would be awarded to Executive under the MPP, assuming the target
          award percentage was applicable and Executive was employed for the
          full fiscal year in which Executive's Employment Termination occurs;
          (ii) the average of the annual amounts paid to Executive under the APP
          with respect to the last three full fiscal years of Executive's
          participation in the APP prior to Employment Termination or, if
          higher, prior to the Change in Control; (iii) the average of the
          annual amounts paid to Executive under the SIPs with respect to the
          last three full fiscal years of Executive's participation in the SIPs
          prior to Employment Termination or, if higher, prior to the Change in
          Control; and (iv) the average of the annual amounts paid to Executive
          under any other cash-based incentive or bonus plans in which Executive
          participates after the date of this Agreement with respect to the last
          three full fiscal years of Executive's participation in such plans
          prior to Employment Termination or, if higher, prior to the Change in
          Control. For purposes of the preceding sentence, if Executive's number
          of full fiscal years of participation in the APP, SIP, or other cash-
          based plan prior to the Change in Control is less than three, the
          amount under clause (ii), (iii) or (iv) of this paragraph shall be
          calculated as the average of the annual amounts paid to Executive over
          the number of full fiscal years of Executive's participation in the
          APP, SIP, or other plans prior to the Change in Control, or the number
          of full fiscal years of Executive's participation in the APP, SIP, or
          other plans prior to Employment Termination, whichever produces a
          higher average annual amount.

                                                                               5
<PAGE>
 
     (h)  "Period Pending a Change in Control" shall mean the period after the
          approval by the Company's stockholders and prior to the effective time
          of (A) a merger or consolidation of the Company with one or more other
          corporations as a result of which the holders of the outstanding
          voting stock of the Company immediately prior to such merger or
          consolidation hold less than 60% of the voting stock of the surviving
          or resulting corporation, or (B) a transfer of substantially all of
          the property of the Company other than to an entity of which the
          Company owns at least 80% of the voting stock.

3.   Certain Additional Payments by the Company.
     ------------------------------------------ 

     (a)  Gross-Up. Anything in this Agreement to the contrary notwithstanding,
          in the event that any payment or distribution by or on behalf of the
          Company to or for the benefit of Executive (whether paid or payable or
          distributed or distributable pursuant to the terms of this Agreement
          or otherwise, but determined without regard to any additional payments
          required under this Section 3) (the "Payments") is determined to be an
          "excess parachute payment" pursuant to Code Section 280G or any
          successor or substitute provision of the Code, with the effect that
          Executive is liable for the payment of the excise tax described in
          Code Section 4999 or any successor or substitute provision of the
          Code, or any interest or penalties are incurred by Executive with
          respect to such Payments (such excise tax, together with any such
          interest and penalties, are hereinafter collectively referred to as
          the "Excise Tax"), then Executive shall be entitled to receive an
          additional payment (the "Gross-Up Payment") in an amount such that
          after payment by Executive of all taxes imposed upon the Gross-Up
          Payment, including, without limitation, federal, state, local or other
          income taxes, FICA taxes, and additional Excise Tax (and any interest
          and penalties imposed with respect to such taxes), Executive retains a
          portion of the Gross-Up Payment equal to the Excise Tax imposed upon
          the Payments.

     (b)  Determination of Gross-Up. Subject to the provisions of Section 3(c),
          all determinations required to be made under this Section 3, including
          whether and when a Gross-Up Payment is required and the amount of such
          Gross-Up Payment and the assumptions to be utilized in arriving at
          such determination, shall be made by the public accounting firm that
          serves as the Company's auditors (the "Accounting Firm"), which shall
          provide detailed supporting calculations both to the Company and
          Executive within 15 business days of the receipt of notice from the
          Company or Executive that there have been Payments, or such earlier
          time as is requested by the Company. In the event that the Accounting
          Firm is serving as accountant or auditor for the individual, entity or
          group effecting the Change in Control, Executive shall designate
          another nationally recognized accounting firm to make the
          determinations required hereunder (which accounting firm shall then be
          referred to as the Accounting Firm hereunder). All fees and expenses
          of the Accounting Firm shall be borne solely by the Company. Any 
          Gross-Up Payment, as determined pursuant to this Section 3, shall be
          paid by the Company to Executive within five days after the receipt by
          the Company and Executive of the Accounting firm's determination. If
          the Accounting Firm determines that no Excise Tax is payable

                                                                               6
<PAGE>
 
          by Executive, it shall furnish Executive with a written opinion that
          failure to report the Excise Tax on Executive's applicable federal
          income tax return would not result in the imposition of a negligence
          or similar penalty. Any determination by the Accounting Firm shall be
          binding upon the Company and Executive, except as provided in
          paragraph (c) below.

     (c)  IRS Claims. As a result of the uncertainty in the application of
          Section 4999 of the Code at the time of the initial determination by
          the Accounting Firm hereunder, it is possible that the Internal
          Revenue Service or other agency will claim that a greater Excise Tax
          is due, and thus a greater amount of Gross-Up Payment should have been
          made by the Company than that determined pursuant to paragraph (b)
          above (an "Underpayment"). In the event that Executive is required to
          make a payment of any such Excise Tax, the Accounting Firm shall
          determine the amount of the Underpayment that has occurred, if any,
          and such Underpayment shall be promptly paid by the Company to or for
          the benefit of the Executive. Executive shall notify the Company in
          writing of any claim by the Internal Revenue Service or other agency
          that, if successful, would require the payment by the Company of the
          Gross-Up Payment or an Underpayment.

4.   Mitigation and Set-Off. Executive shall not be required to mitigate
     Executive's damages by seeking other employment or otherwise. The Company's
     obligations under this Agreement shall not be reduced in any way by reason
     of any compensation or benefits received (or foregone) by Executive from
     sources other than the Company after Executive's Employment Termination, or
     any amounts that might have been received by Executive in other employment
     had Executive sought such other employment. Executive's entitlement to
     benefits and coverage under this Agreement shall continue after, and shall
     not be affected by, Executive's obtaining other employment after his
     Employment Termination, provided that any such benefit or coverage shall
     not be furnished if Executive expressly waives the specific benefit or
     coverage by giving written notice of waiver to the Company.

5.   Litigation Expenses. The Company shall pay to Executive all out-of-pocket
     expenses, including attorneys' fees, incurred by Executive in the event
     Executive successfully enforces any provision of this Agreement in any
     action, arbitration or lawsuit.

6.   Assignment; Successors. This Agreement may not be assigned by the Company
     without the written consent of Executive but the obligations of the Company
     under this Agreement shall be the binding legal obligations of any
     successor to the Company by merger, consolidation or otherwise, and in the
     event of any business combination or transaction that results in the
     transfer of substantially all of the assets or business of the Company, the
     Company will cause the transferee to assume the obligations of the Company
     under this Agreement. This Agreement may not be assigned by Executive
     during Executive's life, and upon Executive's death will inure to the
     benefit of Executive's heirs, legatees and legal representatives of
     Executive's estate.

                                                                               7
<PAGE>
 
7.   Interpretation. The validity, interpretation, construction and performance
     of this Agreement shall be governed by the laws of the State of Illinois,
     without regard to the conflict of law principles thereof. The invalidity or
     unenforceability of any provision of this Agreement shall not affect the
     validity or enforceability of any other provision of this Agreement.

8.   Withholding. The Company may withhold from any payment that it is required
     to make under this Agreement amounts sufficient to satisfy applicable
     withholding requirements under any federal, state or local law.

9.   Amendment or Termination. This Agreement may be amended at any time by
     written agreement between the Company and Executive. The Company may
     terminate this Agreement by written notice given to Executive at least two
     years prior to the effective date of such termination, provided that, if a
     Change in Control occurs prior to the effective date such termination, the
     termination of this Agreement shall not be effective and Executive shall be
     entitled to the full benefits of this Agreement. Any such amendment or
     termination shall be made pursuant to a resolution of the Board.

10.  Financing. Cash and benefit payments under this Agreement shall constitute
     general obligations of the Company. Executive shall have only an unsecured
     right to payment thereof out of the general assets of the Company.
     Notwithstanding the foregoing, the Company may, by agreement with one or
     more trustees to be selected by the Company, create a trust on such terms
     as the Company shall determine to make payments to Executive in accordance
     with the terms of this Agreement.

11.  Severability. In the event that any provision or portion of this Agreement
     shall be determined to be invalid or unenforceable for any reason, the
     remaining provisions of this Agreement shall be unaffected thereby and
     shall remain in full force and effect.

IN WITNESS WHEREOF, the parties hereto have executed this Agreement on the day
and year first written above.

NORTHERN TRUST CORPORATION


By:_____________________
                                                            ____________________
 Its:___________________                                               Executive

                                                                               8

<PAGE>

                                                         Exhibit Number (10)(iv)
                                                            To 6/30/96 Form 10-Q

                         EMPLOYMENT SECURITY AGREEMENT
                         -----------------------------

     THIS EMPLOYMENT SECURITY AGREEMENT is entered into this 21st day of
May, 1996, between NORTHERN TRUST CORPORATION, a Delaware corporation (the
"Company"), and (NAME) (the "Executive").

                               WITNESSETH THAT:
                               --------------- 

     WHEREAS, Executive is employed by the Company or one of its wholly-owned
subsidiaries (referred to collectively as the "Company") and the Company desires
to provide certain security to Executive in connection with any potential change
in control of the Company; and

     WHEREAS, the Company and the Executive entered into an Employment Security
Agreement dated as of (DATE) with respect to the Executive's employment
following a change in control of the Company (which agreement, as it has been
supplemented by subsequent letter agreements, is referred to in this Agreement
as the "Prior Agreement"); and

     WHEREAS, the Executive and the Company wish to supersede the Prior
Agreement with this Agreement;

     NOW, THEREFORE, it is hereby agreed by and between the parties, for good
and valuable consideration the receipt and sufficiency of which are hereby
acknowledged, as follows:

1.   Payments and Benefits Upon a Change in Control.  If within two (2) years
     after a Change in Control (as defined below) or during the Period Pending a
     Change in Control (as defined below), (i) the Company shall terminate
     Executive's employment with the Company without Good Cause (as defined
     below), or (ii) Executive shall voluntarily terminate such employment with
     Good Reason (as defined below), the Company shall, within 30 days of
     Executive's Employment Termination (as defined below), make the payments
     and provide the benefits described below.

     (a)  Cash Payment.  The Company shall make a lump sum cash payment to
          Executive equal to two times the Executive's annual salary at the
          greater of (i) Executive's salary rate in effect on the date of the
          Change in Control or (ii) Executive's salary rare in effect on
          Executive's Employment Termination.

     (b)  Welfare Benefit Plans.  With respect to each Welfare Benefit Plan (as
          defined below), for the period beginning on Executive's Employment
          Termination and ending on the earlier of (i) two years following
          Executive's Employment Termination, or (ii) the date Executive becomes
          covered by a welfare benefit plan or program maintained by an entity
          other than the Company which provides coverage or benefits at least
          equal, in all respects, to such Welfare Benefit Plan, Executive shall
          continue to participate in such Welfare Benefit Plan on the same basis
          and at the same cost to Executive as was the case immediately prior to
          the Change in Control (or, if more favorable to Executive, as was the
<PAGE>
 
          case at any time hereafter), or, if any benefit or coverage cannot be
          provided under a Welfare Benefit Plan because of applicable law or
          contractual provisions, Executive shall be provided with substantially
          similar benefits and coverage for such period. Immediately following
          the expiration of the continuation period required by the preceding
          sentence, Executive shall be entitled to continued group health
          benefit plan coverage (so-called "COBRA coverage") in accordance with
          Section 4980B of the Internal Revenue Code of 1986, as amended (the
          "Code"), it being intended that COBRA coverage shall be consecutive to
          the benefits and coverage provided for in the preceding sentence.
          Executive's eligibility for, and premium contribution level under, The
          Northern Trust Retiree Medical Care Plan and The Northern Trust
          Medicare Supplemental Plan and any similar or successor plans or
          programs maintained or contributed to by the Company, shall be
          determined by adding two years to Executive's age and years of service
          at Executive's Employment Termination.

     (c)  Salary to Date of Employment Termination.  The Company shall pay to
          Executive any unpaid salary or other compensation of any kind earned
          with respect to any period prior to Executive's Employment Termination
          and a lump sum cash payment for accumulated but unused vacation earned
          through such Employment Termination.

2.   Definitions.  For purposes of this Agreement:
     
     (a)  "Good Cause" shall mean: (i) Executive's conviction of any criminal
          violation involving dishonesty, fraud, or breach of trust; (ii)
          Executive's willful engagement in any misconduct in the performance of
          Executive's duty that materially injures the Company; (iii)
          Executive's performance of any act which, if known to the customers,
          clients, stockholders or regulators of the Company or any of its
          subsidiaries, would materially and adversely impact on the business of
          the Company or any of its subsidiaries; (iv) any act or omission by
          Executive that causes a regulatory body with jurisdiction over the
          Company or any of its subsidiaries, to demand, request, or recommend
          that Executive be suspended or removed from any position in which
          Executive serves with the Company or any of its subsidiaries; or (v)
          Executive's willful and substantial nonperformance of assigned duties,
          provided that such nonperformance has continued more than ten days
          after the Company has given written notice of such nonperformance and
          of its intention to terminate Executive's employment because of such
          nonperformance.

     (b)  "Good Reason" shall exist if, without Executive's express written
          consent:

          (i)    The Company shall materially reduce the nature, scope, level or
                 extent of Executive's responsibilities from the nature, scope,
                 level or extent of such responsibilities prior to the Change in
                 Control, or shall fail to provide Executive with adequate
                 office facilities and support services to perform such
                 responsibilities;
<PAGE>
 
          (ii)   The Company shall reduce Executive's salary below that in
                 effect as of the date of this Agreement (or as of the Change in
                 Control, if greater);

          (iii)  The Company shall require Executive to relocate Executive's
                 principal business office or his principal place of residence
                 outside the (LOCATION) Standard Metropolitan Statistical Area
                 (the "Geographical Employment Area"), or assign to Executive
                 duties that would reasonably require such relocation;

          (iv)   The Company shall require Executive, or assign duties to
                 Executive which would reasonably require Executive, to spend
                 more than fifty normal working days away from the Geographical
                 Employment Area during any consecutive twelve-month period; or

          (v)    The Company shall fail to continue in effect any cash or stock-
                 based incentive or bonus plan, retirement plan, welfare benefit
                 plan, or other benefit plan, program or arrangement, unless the
                 aggregate value (as computed by an independent employee
                 benefits consultant selected by the Company) of all such
                 compensation, retirement and benefit plans, programs and
                 arrangements provided to Executive is not materially less than
                 their aggregate value as of the date of this Agreement (or as
                 of the Change in Control, if greater).

     (c)  "Change in Control" shall be deemed to occur on the earliest of:

          (i)    The receipt by the Company of a Schedule 13D or other statement
                 filed under Section 13(d) of the Securities Exchange Act of
                 1934, as amended (the "Exchange Act"), indicating that any
                 entity, person, or group has acquired beneficial ownership, as
                 that term is defined in Rule 13d-3 under the Exchange Act, of
                 more than 30% of the outstanding capital stock of the Company
                 entitled to vote for the election of directors ("voting
                 stock");

          (ii)   The commencement by an entity, person, or group (other than the
                 Company or a subsidiary of the Company) of a tender offer or an
                 exchange offer for more than 20% of the outstanding voting
                 stock of the Company;

          (iii)  The effective time of (A) a merger or consolidation of the
                 Company with one or more other corporations as a result of
                 which the holders of the outstanding voting stock of the
                 Company immediately prior to such merger or consolidation hold
                 less than 60% of the voting stock of the surviving or resulting
                 corporation, or (B) a transfer of substantially all of the
                 property of the Company other than to an entity of which the
                 Company owns at least 80% of the voting stock; or
<PAGE>
 
          (iv)   The election to the Board of Directors of the Company, without
                 the recommendation or approval of the incumbent Board of
                 Directors of the Company, of the lesser of: (A) three
                 directors; or (B) directors constituting a majority of the
                 number of directors of the Company then in office.

     (d)  "Employment Termination" shall mean the effective date of: (i)
          Executive's voluntary termination of employment with the Company with
          Good Reason; or (ii) the termination of Executive's employment by the
          Company without Good Cause.

     (e)  "Welfare Benefit Plan" shall mean each welfare benefit plan maintained
          or contributed to by the Company, including, but not limited to a plan
          that provides health (including medical and dental), life, accident or
          disability benefits or insurance, or similar coverage, in which
          Executive was participating at the time of the Change in Control.

     (f)  "Period Pending a Change in Control" shall mean the period after the
          approval by the Company's stockholders and prior to the effective time
          of (A) a merger or consolidation of the Company with one or more other
          corporations as a result of which the holders of the outstanding
          voting stock of the Company immediately prior to such merger or
          consolidation hold less than 60% of the voting stock of the surviving
          or resulting corporation, or (B) a transfer of substantially all of
          the property of the Company other than to an entity of which the
          Company owns at least 80% of the voting stock.

3.   Mitigation and Set-Off.  Executive shall not be required to mitigate
     Executive's damages by seeking other employment or otherwise.  The
     Company's obligations under this Agreement shall not be reduced in any way
     by reason of any compensation or benefits received (or foregone) by
     Executive from sources other than the Company after Executive's Employment
     Termination, or any amounts that might have been received by Executive in
     other employment had Executive sought such other employment.  Executive's
     entitlement to benefits and coverage under this Agreement shall continue
     after, and shall not be affected by, Executive's obtaining other employment
     after his Employment Termination, provided that any such benefit or
     coverage shall not be furnished if Executive expressly waives the specific
     benefit or coverage by giving written notice of waiver to the Company.

4.   Litigation Expenses.  The Company shall pay to Executive all out-of-pocket
     expenses, including attorneys' fees, incurred by Executive in the event
     Executive successfully enforces any provision of this Agreement in any
     action, arbitration or lawsuit.

5.   Assignment; Successors.  This Agreement may not be assigned by the Company
     without the written consent of Executive but the obligations of the Company
     under this Agreement shall be the binding legal obligations of any
     successor to the Company by merger, consolidation or otherwise, and in the
     event of any business combination or transaction that results in the
     transfer of substantially all of the assets or business of
<PAGE>
 
     the Company, the Company will cause the transferee to assume the
     obligations of the Company under this Agreement. This Agreement may not be
     assigned by Executive during Executive's life, and upon Executive's death
     will inure to the benefit of Executive's heirs, legatees and legal
     representatives of Executive's estate.

6.   Interpretation.  The validity, interpretation, construction and performance
     of this Agreement shall be governed by the laws of the State of Illinois,
     without regard to the conflict of law principles thereof.  The invalidity
     or unenforceability of any provision of this Agreement shall not affect the
     validity or enforceability of any other provision of this Agreement.

7.   Withholding.  The Company may withhold from any payment that it is required
     to make under this Agreement amounts sufficient to satisfy applicable
     withholding requirements under any federal, state or local law.

8.   Amendment or Termination.  This Agreement may be amended at any time by
     written agreement between the Company and Executive.  The Company may
     terminate this Agreement by written notice given to Executive at least two
     years prior to the effective date of such termination, provided that, if a
     Change in Control occurs prior to the effective date such termination, the
     termination of this Agreement shall not be effective and Executive shall be
     entitled to the full benefits of this Agreement.  Any such amendment or
     termination shall be made pursuant to a resolution of the Board.

9.   Financing.  Cash and benefit payments under this Agreement shall constitute
     general obligations of the Company.  Executive shall have only an unsecured
     right to payment thereof out of the general assets of the Company.
     Notwithstanding the foregoing, the Company may, by agreement with one or
     more trustees to be selected by the Company, create a trust on such terms
     as the Company shall determine to make payments to Executive in accordance
     with the terms of this Agreement.

10.  Severability.  In the event that any provision or portion of this Agreement
     shall be determined to be invalid or unenforceable for any reason, the
     remaining provisions of this Agreement shall be unaffected thereby and
     shall remain in full force and effect.

11.  Other Agreements.  This Agreement supersedes and cancels the Prior
     Agreement, and all prior written or oral agreements and understandings
     relating to the terms of this Agreement or the Prior Agreement.

IN WITNESS WHEREOF, the parties hereto have executed this Agreement on the day
and year first written above.

NORTHERN TRUST CORPORATION


By:_____________________________                 _______________________________
Its:____________________________                                       Executive

<PAGE>

                                                          Exhibit Number (10)(v)
                                                            To 6/30/96 Form 10-Q
                                                
                           IMPLEMENTATION AGREEMENT

     This IMPLEMENTATION AGREEMENT dated June 26, 1996, by and among (i)
NationsBank (South) N.A., f/k/a/ Citizens and Southern Trust Company (Georgia),
N.A., not in its corporate capacity but solely as trustee (the "Trustee") of the
Northern Trust Employee Stock Ownership Trust (the "Trust"), which forms a part
of the Northern Trust Employee Stock Ownership Plan (the "Plan"), (ii) Northern
Trust Corporation, a Delaware corporation (the "Parent Corporation"), and (iii)
The Northern Trust Company, an Illinois state bank (the "Company").

                             W I T N E S S E T H:

   WHEREAS, the Company and the Trustee entered into an agreement dated January
26, 1989, which forms the Trust (the "Trust Agreement");

   WHEREAS, the Trust borrowed an original aggregate principal amount of
$64,296,000 under a Note Agreement dated January 26, 1989 (the "Original Loan"),
the proceeds of which were used to acquire shares of Common Stock of the Parent
Corporation;

   WHEREAS, the Parent Corporation has agreed to make a series of loans to the
Trust and the Trustee has agreed to borrow from the Parent Corporation (the
"Proposed Loan Restructuring") pursuant to the terms of the term loan agreement
dated as of the date hereof (the "Term Loan Agreement") and the Trustee will use
the proceeds of the loans under the Term Loan Agreement to repay a portion of
certain installments due on the Original Loan (the "Proposed Refinancing");

   WHEREAS, the parties hereto intend that the loans made under the Term Loan
Agreement shall be primarily for the benefit of the Plan participants and
beneficiaries and shall constitute "exempt loans" within the meaning of Section
4975(d)(3) of the Code, Treasury Regulation (S)54.4975-7(b), Section 408(b)(3)
of ERISA, and Department of Labor Regulation (S)2550.408b-3 and as described in
Section 6.1 of the Plan; and
 
   WHEREAS, the Company engaged the Trustee under an agreement dated December
22, 1995 to make a determination with respect to the Proposed Loan Restructuring
in its independent discretion, and the parties agree that the Trust Agreement
must be amended to reflect the terms of that engagement.

   NOW, THEREFORE, in consideration of the premises and the mutual covenants and
agreements herein contained and other good and valuable consideration (the
receipt, adequacy and sufficiency of which each party hereto respectively
acknowledges by its execution hereof), the parties hereto
<PAGE>
 
intending legally to be bound do hereby agree to the implementation of their
understanding as follows:

     1.   Representation.  The Company represents that the execution, delivery
and performance of this Agreement are within Company's powers and have been duly
authorized by all necessary action by the Company.

     2.   The Company and the Trustee agree that Section 4.2 of the Trust
Agreement is hereby amended as follows:

          (A) By substituting for the introductory clause the following
          provision:

          "As directed by the Committee, except as otherwise provided in
          subparagraph (b), the Trustee shall have the authority and power to:";
          and

          (B) By substituting for subparagraph 4.2(b) the following provision:

          "(b) Borrow from any lender (including the Company or the Corporation)
          to finance the acquisition of Company Stock or the repayment of a
          prior loan used to acquire Company Stock, giving its note as Trustee
          with such reasonable interest and security for the loan as may be
          appropriate and necessary; provided that no lender shall have recourse
          against the Trust Fund except as provided for in Article VI of the
          Plan; provided further that the Trustee shall have complete and
          independent discretion with respect to any decision to borrow funds to
          refinance the loan obtained by the Trustee under the Note Agreement
          dated as of January 26, 1989."

     3.   The Parent Corporation agrees to make the following additional
contributions to the Plan:

          (A)  On the first business day in the year 2002, the Parent
          Corporation shall contribute to the Plan the amount of Five Million
          Four Hundred Thousand Dollars ($5,400,000), plus the actual amount, if
          any, by which the aggregate amount of dividends paid after June 30,
          1996 on shares that would have been allocated to the Plan
          participants, but for the restructuring of the Original Loan, exceeds
          the 1996 dividend rate of $1.24 per share increased by 15 percent each
          year thereafter, with appropriate adjustment for stock dividends,
          splits, or similar adjustments in the capital structure of the
          Corporation.

                                      -2-
<PAGE>
 
          (B) On the first business day in the year 2003, the Parent Corporation
          shall contribute to the Plan the amount of Five Million Four Hundred
          Thousand Dollars ($5,400,000).

The Parent Corporation, in its sole discretion, may make the additional
contributions described in subparagraphs (A) and (B) in the form of cash or
shares of common stock of the Parent Corporation ("Common Stock"). The value of
a contribution in the form of shares of Common Stock shall be determined by
multiplying the number of shares contributed to the Plan by the Average (as
defined herein) of the last sale prices of a share of Common Stock, as reported
on the National Association of Securities Dealers Automated Quotation System
("NASDAQ") at the close of trading on the ten consecutive trading days ending on
the third business day prior to the date of the contribution to the Plan.
"Average" shall mean the sum of the ten last sale prices determined as specified
above divided by ten, with the result rounded to the nearest ten-thousandth.

     IN WITNESS WHEREOF, the parties have caused this Agreement to be duly
executed and delivered by their respective representatives thereunto duly
authorized as of the date first hereinbefore appearing.


                                       NORTHERN TRUST EMPLOYEE STOCK
                                         OWNERSHIP TRUST

                                       By:  NATIONSBANK (South) N.A.,
                                             not individually but solely
                                             as Trustee under Trust
                                             Agreement dated January 26, 1989


                                            By:  /s/ Ernst F. Ritter
                                                --------------------------------
                                            Its: /s/ Senior Vice President
                                                --------------------------------


                                       NORTHERN TRUST CORPORATION

                                       By:  /s/ Perry R. Pero
                                           -------------------------------------
                                       Its: /s/ Senior Executive Vice President
                                           -------------------------------------

 
                                       THE NORTHERN TRUST COMPANY


                                       By:  /s/ Perry R. Pero
                                           -------------------------------------
                                       Its: /s/ Senior Executive Vice President
                                           -------------------------------------

                                      -3-

<PAGE>
                                                         Exhibit Number (10)(vi)
                                                            To 6/30/96 Form 10-Q
 





- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------




                              TERM LOAN AGREEMENT



                                    between



                         NORTHERN TRUST EMPLOYEE STOCK
                                OWNERSHIP TRUST



                                      and



                          NORTHERN TRUST CORPORATION



                           Dated as of June 28, 1996



- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
                              TERM LOAN AGREEMENT
                              -------------------


     THIS TERM LOAN AGREEMENT (this "Agreement"), dated as of June 28, 1996,
between (i) the NORTHERN TRUST EMPLOYEE STOCK OWNERSHIP TRUST (the "Issuer"), a
trust (the "Trust") established under a trust agreement dated January 26, 1989
as amended between The Northern Trust Company (the "Company") and NationsBank
(South) N.A., as Trustee (the "Trustee") to implement and form part of the
NORTHERN TRUST EMPLOYEE STOCK OWNERSHIP PLAN (the "Plan"), and (ii) NORTHERN
TRUST CORPORATION, a Delaware corporation (the "Lender"),


                             W I T N E S S E T H:

     WHEREAS, Company has duly established the Plan and the Trust, and has duly
appointed Trustee;

     WHEREAS, the Issuer has previously authorized, issued and sold an original
aggregate principal amount of $64,296,000 of its 8.23% Guaranteed ESOP Notes
(collectively the "Original Loan") pursuant to certain Note Agreements, dated as
of January 26, 1989 (collectively the "Note Agreements"), with the original
respective purchasers of the notes evidencing the Original Loan thereunder;

     WHEREAS, the Trustee has agreed to enter into this Agreement so as to
refinance certain installments due on the Original Loan;

     WHEREAS, the Issuer has agreed to borrow from the Lender, and the Lender
has agreed to lend to the Issuer, on the respective dates (each such date being
herein called a "New Loan Date") and in the respective amounts set forth in
Schedule I (collectively the "New Loans"), and on the terms and conditions
hereof; and

     WHEREAS, the parties hereto intend that each of the New Loans constitute an
"exempt loan" within the meaning of Section 4975(d)(3) of the Code, Treasury
Regulation (S)54.4975-7(b), Section 408(b)(3) of ERISA, and Department of Labor
Regulation (S)2550.408b-3 (collectively, the "Exempt Loan Rules") and as
described in Section 6.1 of the Plan;

     WHEREAS, the Trustee has determined that (i) the transactions contemplated
by this Agreement are prudent and in the best interest of the Plan participants
and their beneficiaries and do not constitute prohibited transactions under
Section 406 of ERISA or Section 4975 of the Code, for which no statutory or
administrative exemption exists, and (ii) the New Loans are not
<PAGE>
 
inconsistent with the "primary benefit requirement" as described in Section
4975(d)(3) of the Code and Section 54.4975.7(b)(3) of the Excise Tax
Regulations, and bear a reasonable rate of interest; and

     WHEREAS, in consideration for entering into this Agreement, the parties
have entered into the Implementation Agreement dated as of the date hereof.

     NOW, THEREFORE, in consideration of the premises and the mutual covenants
and agreements herein contained and other good and valuable consideration (the
receipt, adequacy and sufficiency of which each party hereto respectively
acknowledges by its execution hereof), the parties hereto intending legally to
be bound do hereby agree as follows:


                                   ARTICLE I

                        DEFINITIONS AND INTERPRETATION

     SECTION 1.1 Definitions. In this Agreement, unless a clear contrary
intention appears, terms defined herein or in Exhibit A hereto have such
meanings when used herein.

     SECTION 1.2 Accounting Terms. For purposes of this Agreement, unless a
clear contrary intention appears, accounting terms, determinations and
computations shall be interpreted or made, as the case may be, in accordance
with GAAP.

     SECTION 1.3 General Interpretation. This Agreement, unless a clear contrary
intention appears, shall be construed and interpreted so as to maintain the
status of the Plan as a qualified leveraged employee stock ownership plan under
Sections 401(a) and 4975(e)(7) of the Code, the Trust as exempt from taxation
under Section 501(a) of the Code, the Original Loan and the New Loans as "exempt
loans" under the Exempt Loan Rules, and each of the New Loans as a "Loan"
meeting the requirements of Section 6.1 of the Plan and, without limiting the
foregoing, herein:

     (a)  the singular includes the plural and vice versa;

     (b)  reference to any Person includes such Person's successors and
    permitted assigns and to a Person in a specified capacity excludes such
    Person in any other capacity;

     (c)  reference to any gender includes each other gender;

                                      -2-
<PAGE>
 
     (d)  reference to any agreement (including this Agreement), document or
    instrument means such agreement, document or instrument as amended or
    modified and in effect from time to time in accordance with the terms
    thereof and, if applicable, the terms hereof and, in the case of a
    promissory note, includes renewals and extensions thereof and replacements
    and substitutions therefor;

     (e)  reference to any Applicable Law means such Applicable Law as amended,
    modified, codified, superseded, or reenacted, in whole or in part, and in
    effect from time to time, unless the effect thereof is to reduce, limit or
    otherwise prejudicially affect any obligation or any right, power or remedy
    hereunder, in which case such amendment, modification, codification or
    reenactment shall, to the maximum extent permitted by Applicable Law, not
    form part of this Agreement and be disregarded for purposes of construction
    and interpretation hereof;

     (f)  "hereof", "hereto" and words of similar import shall be deemed
    references to this Agreement as a whole and not to any particular Article or
    Section hereof; and

     (g)  "including" (and with correlative meaning "include") means without
    limiting the generality of any preceding description.


                                  ARTICLE II

                           NEW LOANS; NOTE; PAYMENTS

     SECTION 2.1 New Loans. The Lender will lend to the Issuer, and the Issuer
will borrow from the Lender, each New Loan on each applicable New Loan Date
therefor, in an aggregate principal amount not to exceed $14,768,425 for all New
Loans. The obligation of the Lender under this Section 2.1 is herein called the
"Commitment".

     SECTION 2.2 Use of New Loan Proceeds. The Issuer will use the proceeds of
each New Loan to pay principal and interest then due under the Original Loan.

     SECTION 2.3 Note. The New Loans will be evidenced by a promissory note of
the Issuer (the "Note") substantially in the form of Exhibit B hereto,
appropriately completed, dated the date (the "Initial Loan Date") of the initial
New Loan, payable to the order of the Lender. The Issuer shall pay the principal
of the

                                      -3-
<PAGE>
 
New Loans in the respective amounts and on the respective dates set forth in
Schedule II hereto.

     SECTION 2.4 Prepayments. The Issuer may prepay any New Loan in whole or in
part to the Lender from time to time. Each prepayment shall be applied to each
remaining scheduled installment due on the Note and to each New Loan pro rata
according to the respective amounts thereof.

     SECTION 2.5 Interest. The Issuer will pay interest to the Lender on the
aggregate unpaid principal balance of each New Loan from time to time
outstanding, commencing on (and including) the applicable New Loan Date therefor
through (but excluding) the date such New Loan is paid in full, at the rate of
7.52% per annum. Prior to maturity, interest shall be payable semiannually on
June 30 and December 31 in each year, commencing December 31, 1996, and at
maturity. After maturity (whether by acceleration or otherwise), interest shall
be payable on demand. Interest shall be computed on the basis of a 360-day year
of twelve 30-day months.

     SECTION 2.6 Payments. All payments of principal of, or interest on, the
Note shall be made by the Issuer to the Lender in same day funds at such bank or
other financial institution and for credit to such account as the Lender shall
from time to time direct by notice to the Issuer, on the date due; and funds
received after that hour shall be deemed to have been received on the next
following Business Day.

     SECTION 2.7 Interest on Overdue Amounts. If any payment of principal of, or
interest on, the Note is not made when due, interest shall accrue on the amount
thereof, commencing on (and including) such due date through (but excluding) the
date on which such amount is paid in full, at a rate per annum which is 2% in
excess of the otherwise applicable interest rate on the Note, such interest to
be payable on demand.


                                  ARTICLE III

                                REPRESENTATIONS

     SECTION 3.1 Representations of Trustee. The Trustee (by execution of this
Agreement on behalf of the Issuer) represents and warrants to the Lender on the
date hereof and as of the date of each such New Loan, as follows:

     (a)  assuming the due authorization, execution and delivery

                                      -4-
<PAGE>
 
     of the Trust Agreement by the Company, the execution, delivery and
     performance of this Agreement and the Note are within the Trustee's powers
     and have been duly authorized by all necessary action by the Trustee;

     (b)  the Issuer does not need to obtain any authorization, approval or
    other action by any governmental authority or regulatory body, and no notice
    by the Issuer to or filing by the Issuer with any governmental authority or
    regulatory body is required, for the due execution, delivery and performance
    by the Issuer of this Agreement and the Note;

     (c)  the Trustee on behalf of the Issuer has duly executed and delivered
    this Agreement and this Agreement is, and the Note when executed and
    delivered by the Trustee on behalf of the Issuer for value received will be,
    legal, valid and binding obligations of the Trust, enforceable against the
    Trust in accordance with their respective terms; and

     (d)  neither the execution and delivery of this Agreement or the Note nor
    the performance by the Trustee on behalf of the Issuer of its obligations
    thereunder are contrary to, conflict with or constitute a default under, the
    Plan, the Trust Agreement, or any other instrument or agreement to which the
    Issuer is a party or by which the Issuer is bound.

     SECTION 3.2 Representations of Lender. The Lender (by execution of this
Agreement on behalf of the Issuer) represents and warrants to the Issuer on the
date hereof and as of the date of each such New Loan, as follows:

     (a)  the execution, delivery and performance of this Agreement are within
    the Lender's powers and have been duly authorized by all necessary action by
    the Lender;

     (b)  the Lender does not need to obtain any authorization, approval or
    other action by any governmental authority or regulatory body, and no notice
    by the Lender to or filing by the Lender with any governmental authority or
    regulatory body is required, for the due execution, delivery and performance
    by the Lender of this Agreement;

     (c)  the Lender has duly executed and delivered this Agreement, and this
    Agreement constitutes legal, valid and binding obligations of the Lender,
    enforceable against the Lender in accordance with its terms; and

     (d)  neither the execution and delivery of this Agreement, nor the
    performance by the Trustee on behalf of the Issuer of

                                      -5-
<PAGE>
 
     its obligations thereunder are contrary to, conflict with or constitute a
     default under, the Plan, the Trust Agreement, or any other instrument or
     agreement to which the Lender is a party or by which the Issuer is bound.


                                  ARTICLE IV

                             CONDITIONS PRECEDENT

     SECTION 4.1 Documentation Condition Precedent. The obligation of the Lender
to make the initial New Loan is, in addition to the conditions precedent
contained in Section 4.2, subject to the condition precedent that the Lender
shall have received the duly executed Note, dated the initial New Loan Date (or
such earlier date as shall be satisfactory to the Lender) and in form and
substance satisfactory to the Lender.

     SECTION 4.2 Other Conditions Precedent. In addition to the condition
precedent contained in Section 4.1, the obligation of the Lender to make each
New Loan is subject to the following conditions precedent:

     (a)  the representations and warranties made by the Trustee herein are true
    and correct on the applicable New Loan Date for such New Loan as if made on
    and as of such New Loan Date; and

     (b)  no Event of Default or Unmatured Event of Default shall have occurred
    and be continuing on the applicable New Loan Date for such New Loan.


                                   ARTICLE V

                      EVENTS OF DEFAULT AND THEIR EFFECT

     SECTION 5.1 Events of Default; Effect. If default in the payment when due
of any principal of, or default (and continuance thereof for 2 Business Days) in
the payment when due of interest on, the Note (an "Event of Default") occurs,
unless the effect thereof as an Event of Default has been waived in writing by
the Lender, then, the Lender may declare the Commitment to be terminated and the
Note to be due and payable, whereupon the Commitment shall terminate and have no
further force or effect and the Note shall become immediately due and payable,
without presentment, demand, protest or notice to the Issuer or other action by
the Lender of any kind whatsoever, all of which actions the Issuer hereby waives
to the maximum extent permitted by,

                                      -6-
<PAGE>
 
Applicable Law. The Lender shall promptly advise the Issuer of any such
declaration, but failure to do so or delay in doing so shall not impair the
effect of such declaration. Notwithstanding anything to the contrary herein or
in the Note contained or implied, in the event of default (whether or not
constituting an Event of Default or Unmatured Event of Default) with respect to
the New Loans by the Issuer, the value of Trust assets transferred in
satisfaction thereof shall not exceed the amount of such default (without regard
to amounts owing solely as the result of a declaration under this Section 5). In
addition, such a transfer of such Trust assets shall only occur upon and to the
extent of the failure of the Issuer to meet the payment schedule of the New
Loans provided in Section 2.3. The Lender confirms that the shares of common
stock held in the Trust have not been pledged to the Lender as collateral for
the New Loans.

                                  ARTICLE VI

                                    GENERAL

     SECTION 6.1 Waivers; Amendments. No delay on the part of the Lender in the
exercise of any right, power or remedy shall operate as a waiver thereof, nor
shall any single or partial exercise by any of them of any right, power or
remedy preclude other or further exercise thereof, or the exercise of any other
right, power or remedy. No amendment, modification or waiver of, or consent with
respect to, any provision of this Agreement or the Note shall in any event be
effective unless the same shall be in writing and signed and delivered by the
Lender and then any such amendment, modification, waiver or consent shall be
effective only in the specific instance and for the specific purpose for which
given.

     SECTION 6.2 Confirmations; Information. The Lender and the Issuer agree
from time to time, upon written request received by it from the other, to
confirm to the other in writing the aggregate unpaid principal balance then
outstanding under the Note and the rate or rates of interest from time to time
payable with respect thereto and such other matters relating to the Trust as may
reasonably be the subject of inquiry.

     SECTION 6.3 Captions. Section captions used in this Agreement are for
convenience only, and shall not affect the construction of this Agreement.

     SECTION 6.4 Governing Law. This Agreement and the Note shall be a contract
made under and governed by the laws of the

                                      -7-
<PAGE>
 
State of Illinois, without regard to conflict of laws principles. All
obligations of the Issuer and rights of the Lender expressed herein or in the
Note shall be in addition to and not in limitation of those provided by
Applicable Law.

     SECTION 6.5 Notices. All notices to either party provided for hereunder
shall be in writing and delivered by courier or by facsimile to such party or
mailed by registered or certified mail addressed to such party, at its address
appearing below (or such other address as such party may designate by written
notice to the other party), as follows:

                                      -8-
<PAGE>
 
     If to the Issuer:                 Northern Trust Employee Stock
                                         Ownership Trust
                                       c/o NationsBank (South) N.A.
                                       600 Peachtree Street, NE
                                       Suite 700
                                       Atlanta, Georgia  30308
                                       Tel:  (404) 607-4787
                                       Fax:  (404) 607-6543
                                       Attn:  Mr. Ernest F. Ritter
                                              Senior Vice President

                                       WITH A COPY TO:

                                       Northern Trust Employee Stock
                                         Ownership Trust
                                       c/o The Northern Trust Company
                                       50 South LaSalle Street
                                       Chicago, Illinois  60675
                                       Tel: (312) 444-3716
                                       Fax: (312) 444-4134
                                       Attn:  Secretary of the Corporation

     If to the Lender:                 Northern Trust Corporation
                                       50 South LaSalle Street
                                       Chicago, Illinois  60675
                                       Tel: (312) 444-7459
                                       Fax: (312) 630-6739
                                       Attn:  Cathy Treiber


     SECTION 6.6 Termination. The parties hereto acknowledge that by letter to
the Internal Revenue Service ("IRS") dated February 26, 1996 as supplemented
June 7, 1996 (the "Ruling Request"), McDermott, Will & Emery, on behalf of the
Company, has requested a ruling on the tax consequences of the New Loans. The
parties agree that in the event that on or before December 31, 1996 (or such
later date agreed to in writing by both parties hereto), the IRS does not grant
the Ruling Request on the terms requested therein, then (i) the funds comprising
the initial New Loan shall automatically be deemed to constitute a contribution
under the Plan, (ii) the Note shall automatically be deemed to be cancelled, and
(iii) this Agreement and the Note shall automatically terminate and be of no
further force or effect.

                                      -9-
<PAGE>
 
                                  ARTICLE VII

                               LIMITED RECOURSE

     SECTION 7.1 Limited Recourse. Notwithstanding anything to the contrary
herein or in the Note or any other instrument, agreement or document contained
or implied, the obligations of the Issuer under this Agreement and the Note
(collectively the "Loan Obligations") shall be enforceable to the extent
permitted under Applicable Law, including the Exempt Loan Rules, only against
the Trust to the extent of contributions (other than contributions of employer
securities) made to the Trust in accordance with the Plan to enable the Issuer
to pay and satisfy the Loan Obligations and from earnings attributable to the
investment of such contributions (collectively the "Loan Assets"). No recourse
shall be had to or against the Trust or the assets thereof (other than the Loan
Assets) for any deficiency judgment against the Trust for the purpose of
obtaining payment or other satisfaction of the Loan obligations.

     SECTION 7.2 No Personal Recourse Against Issuer. Without limiting the
provisions of Section 7.1, the Trustee shall not have any personal liability for
any of the Loan Obligations.

     IN WITNESS WHEREOF, the parties have caused this Agreement to be duly
executed and delivered by their respective representatives thereunto duly
authorized as of the date first hereinbefore appearing.

                                       NORTHERN TRUST EMPLOYEE STOCK
                                         OWNERSHIP TRUST


                                       By: NATIONSBANK (SOUTH) N.A.,
                                            not individually but solely
                                            as Trustee under Trust
                                            Agreement dated January 26, 1989


                                           By:   /s/ Ernest F. Ritter
                                               ---------------------------------
                                           Its:  Senior Vice President
                                               ---------------------------------


                                       NORTHERN TRUST CORPORATION

                                           By:   /s/ Perry R. Pero
                                               ---------------------------------
                                           Its:  Senior Executive Vice President
                                               ---------------------------------

                                     -10-
<PAGE>
 
                                                                      SCHEDULE I


                                   NEW LOANS
                                   ---------
<TABLE>
<CAPTION>
 
 
     New Loan Date                                    Amount
     -------------                                    ------
     <S>                                              <C> 
     June 28, 1996                                    $2,241,050
     December 31, 1996                                $2,323,338
     June 30, 1997                                    $2,414,965
     December 31, 1997                                $2,502,893
     June 30, 1998                                    $2,599,843
     December 31, 1998                                $2,686,336
</TABLE>

                                     -11-
<PAGE>
 
                                                                     SCHEDULE II


                                 INSTALLMENTS
                                 ------------
<TABLE>
<CAPTION>
 
 
     New Loan Due Date                                  Amount
     -----------------                                  ------  
     <S>                                              <C>
     June 30, 1999                                    $2,241,050
     December 31, 1999                                $2,323,338
     June 30, 2000                                    $2,414,965
     December 29, 2000                                $2,502,893
     June 29, 2001                                    $2,599,843
     December 31, 2001                                $2,686,336
</TABLE>

                                     -12-
<PAGE>
 
                                                                       EXHIBIT A
                                                                       ---------


                                  DEFINITIONS
                                  -----------


          "Agreement" - see Preamble.

          "Applicable Law" - means, as to any Person, any law (statutory or
common), treaty, rule or regulation or determination of an arbitrator or of a
governmental authority, in each case applicable to or binding upon the Person or
any of its property or to which the Person or any of its property is subject.

          "Business Day" - means any day other than a Saturday, Sunday or other
day on which commercial banks in Chicago, Illinois are authorized or required by
law to close.

          "Code" is defined in Section 2.7 of the Plan.
          
          "Commitment" - see Section 2.1.
          
          "Committee" is defined in Section 2.8 of the Plan.
          
          "Company" - see Recitals.
          
          "Company Stock" is defined in Section 2.10 of the Plan.
          
          "ERISA" is defined in Section 2.21 of the Plan.
          
          "Event of Default" - see Section 5.1.
          
          "Exempt Loan Rules" - see Recitals.
          
          "GAAP" means generally accepted accounting principles set forth from
time to time in the opinions and pronouncements of the Accounting Principles
Board and the American Institute of Certified Public Accountants and statements
and pronouncements of the Financial Accounting Standards Board (or agencies with
similar functions of comparable stature and authority within the accounting
profession), or in such other statements by such other entity as may be in
general use by significant segments of the U.S. accounting profession, which are
applicable to the circumstances as of the date of determination.

          "Initial Loan Date" - see Section 2.3.
          
          "IRS" - See Section 6.7.

                                     -13-         
<PAGE>
 
          "Lender" - see Preamble.

          "Loan Assets" - see Section 7.1

          "Original Loan" - see Recitals.

          "New Loans" - see Recitals.

          "New Loan Date" - see Recitals.

          "Note" - see Section 2.3 and Exhibit B.

          "Note Agreements" - see Recitals.

          "Person" means an individual, partnership, corporation, business
trust, joint stock company, trust, unincorporated association, joint venture or
governmental authority.

          "Plan" - see Preamble.

          "Ruling Request" - see Section 6.7.

          "Trust" - see Preamble.

          "Trustee" - see Preamble.

          "Unmatured Event of Default" means any event which with the lapse of
time or the giving of notice, or both, would become an Event of Default.

                                     -14-
<PAGE>
 
                                                                       EXHIBIT B
                                                                       ---------


                 NORTHERN TRUST EMPLOYEE STOCK OWNERSHIP TRUST

                     7.52% ESOP NOTE DUE DECEMBER 31, 2001


$14,768,425                                          June 28, 1996


          Northern Trust Employee Stock Ownership Trust (the "Issuer"), created
by a Trust Agreement dated January 26, 1989 as amended, between The Northern
Trust Company and NationsBank (South) N.A., as Trustee, FOR VALUE RECEIVED,
hereby promises to pay to the order of NORTHERN TRUST CORPORATION, the principal
amount of $14,768,425 (or, if less, the aggregate unpaid principal amount of all
New Loans made by the payee to the Issuer pursuant to the Term Loan Agreement
(hereinafter defined) as shown either on the schedule attached hereto or in the
records of the payee), such principal to be payable in the amounts and on the
dates provided for in Schedule II to the Term Loan Agreement.

          The Issuer further promises to pay interest on the principal amount
from time to time remaining unpaid hereon at the rate of 7.52% per annum from
the date hereof until maturity, payable semiannually on June 30 and December 31
in each year, commencing December 31, 1996, and at maturity. If any payment of
principal of, or interest on, this Note is not made when due, interest shall
accrue on the amount thereof, commencing on (and including) such due date
through (but excluding) the date on which such amount is paid in full, at a rate
per annum which is 2% in excess of the otherwise applicable interest rate on
this Note, such interest to be payable on demand. Interest shall be computed on
the basis of a 360-day year of twelve 30-day months.

          Both the principal hereof and interest hereon are payable at the
principal office of The Northern Trust Company in Chicago, Illinois, in coin or
currency of the United States of America which at the time of payment shall be
legal tender for the payment of public and private debts.

          This Note is issued under and pursuant to the terms and provisions of,
and is subject to, the Term Loan Agreement (such Term Loan Agreement as the same
may from time to time be amended or modified being herein referred to as the
"Term Loan Agreement") dated as of June 28, 1996, between the Issuer and
Northern Trust Corporation and is entitled to all the benefits and security
provided for thereby or referred to therein, to

                                     -15-
<PAGE>
 
which Term Loan Agreement reference is hereby made for the statement thereof.

          Recourse for the payment of this Note has been limited by the
provisions of the Term Loan Agreement and this Note is expressly made subject to
such provisions.

                                       NORTHERN TRUST EMPLOYEE STOCK
                                         OWNERSHIP TRUST

                                       By: NATIONSBANK (South) N.A.,
                                            not individually but solely as
                                            Trustee under Trust Agreement
                                            dated January 26, 1989

                                           By: _________________________
                                            Its:________________________

                                     -16-
<PAGE>
 
Schedule Attached to Note dated June 28, 1996 of NationsBank (South) N.A., not
individually but as trustee of the Northern Trust Employee Stock Ownership
Trust, payable to the order of Northern Trust Corporation.


- --------------------------------------------------------------------------------

                        NEW LOANS AND PRINCIPAL PAYMENTS
- --------------------------------------------------------------------------------

================================================================================
      NOTATION           PRINCIPAL           AMOUNT OF             UNPAID
        DATE             AMOUNT OF           PRINCIPAL           PRINCIPAL
      MADE BY          NEW LOAN MADE           REPAID             BALANCE
      -------          -------------         ---------           ---------
- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

- -------------------------------------------------------------------------------

===============================================================================

                                     -17-

<PAGE>

                                                             EXHIBIT NUMBER (11)
                                                            TO 6/30/96 FORM 10-Q


   NORTHERN TRUST CORPORATION
COMPUTATION OF PER SHARE EARNINGS

<TABLE>
<CAPTION>




                                                          Second Quarter Ended June 30                 Six Months Ended June 30
                                                      -------------------------------------         --------------------------------
                                                           1996                  1995                   1996                1995
                                                      ---------------      ----------------         --------------     -------------
<S>                                                   <C>                  <C>                      <C>                <C> 

 Computation Required by
 -----------------------
 Regulation S-K
 --------------

 Priamary Earnings Per Share
 ---------------------------

 Net Income Applicable to
   Common Shares                                           $62,198,882          $50,946,144           $122,444,451       $98,127,843
                                                      ================     ================         ==============     =============
 Weighed Average Number of Common
  and Common Equivalent Shares Outstanding

       Common Shares                                        56,204,977           55,975,144             56,231,580        55,117,831

       Dilutive Effect of Common 
        Equivalent Shares (A)

        Stock Options                                          889,374              534,482                906,823           560,390

        Long Term Performance Stock Plan                       293,734              355,597                278,716           339,360

        Other                                                   56,632               12,502                 50,708            10,357
                                                      ----------------     ----------------         --------------     -------------
                                                            57,444,717           56,878,030             57,467,827        56,027,938
                                                      ================     ================         ==============     =============


Net Income Per Common and
 Common Equivalent Share                                         $1.08                $0.90                  $2.13             $1.75
                                                      ================     ================         ==============     =============


    (A) Determined by application of the treasury stock method.
</TABLE> 
<PAGE>
 
<TABLE>
<CAPTION>
 
                                                                                                              EXHIBIT NUMBER (11)
                                                                                                              TO 6/30/96 FORM 10-Q
  NORTHERN TRUST CORPORATION
COMPUTATION OF PER SHARE EARNINGS
 
 
                                                             Second Quarter Ended June 30              Six Months Ended June 30
                                                           ---------------------------------        ------------------------------
                                                                1996                1995                1996             1995
                                                           -------------       -------------        ------------     -------------
<S>                                                        <C>                 <C>                  <C>              <C>    
Computations Required by
- ------------------------
Regulation S-K
- --------------
 
Fully Diluted Earnings Per Share
- --------------------------------
 
Net Income Applicable to
  Common Shares                                              $62,198,882         $50,946,144        $122,444,451      $98,127,843

 
Add Back:  Dividend on Series E Convertible
   Preferred Stock                                                                   785,353              14,756        1,562,500
                                                           -------------       -------------       -------------    -------------
                                                             $62,198,882         $51,731,497        $122,459,207      $99,690,343
                                                           =============       =============       =============    =============

 
 
Weighted Average Number of Common
  and Common Equivalent Shares Outstanding
 
        Common Shares                                         56,204,977          55,975,449          56,231,580       55,117,831
 
        Dilutive Effect of Common
          Equivalent Shares (A)
 
          Stock Options                                        1,000,956             610,847           1,032,355          656,258
 
          Long Term Performance Stock Plan                       313,727             372,812             291,974          349,420

          Other                                                   65,915              14,514              56,888           11,680

 
        Other Potentially Dilutive Securities
 
          Equivalent Shares Assuming Conversion of
          Series E Convertible Preferred Stock                                     1,204,820             191,977        1,204,820
                                                           -------------       -------------       -------------    -------------
                                                              57,585,575          58,178,442          57,804,774       57,340,009
                                                           =============       =============       =============    =============
 
Net Income Per Common and
  Common Equivalent Share                                          $1.08               $0.89               $2.12            $1.74
                                                           =============       =============       =============    =============

 
 
(A) Determined by application of the treasury stock method.
 
</TABLE>

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 9
<LEGEND> This schedule contains summary financial information extracted from the
Consolidated Balance Sheet and the Consolidated Statement of Income and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               JUN-30-1996
<CASH>                                       1,232,875
<INT-BEARING-DEPOSITS>                       1,905,427
<FED-FUNDS-SOLD>                               361,300
<TRADING-ASSETS>                                 3,286
<INVESTMENTS-HELD-FOR-SALE>                  5,795,950
<INVESTMENTS-CARRYING>                         504,093
<INVESTMENTS-MARKET>                           523,871
<LOANS>                                     10,405,194
<ALLOWANCE>                                    147,380
<TOTAL-ASSETS>                              21,751,177
<DEPOSITS>                                  13,267,850
<SHORT-TERM>                                 6,215,908
<LIABILITIES-OTHER>                            436,222
<LONG-TERM>                                    337,544
<COMMON>                                        94,966
                                0
                                    120,000
<OTHER-SE>                                   1,278,687
<TOTAL-LIABILITIES-AND-EQUITY>              21,751,177 
<INTEREST-LOAN>                                333,244
<INTEREST-INVEST>                              184,995
<INTEREST-OTHER>                                52,811
<INTEREST-TOTAL>                               571,050
<INTEREST-DEPOSIT>                             221,144
<INTEREST-EXPENSE>                             382,141
<INTEREST-INCOME-NET>                          188,909
<LOAN-LOSSES>                                    9,000
<SECURITIES-GAINS>                                 374
<EXPENSE-OTHER>                                375,588
<INCOME-PRETAX>                                187,203
<INCOME-PRE-EXTRAORDINARY>                     187,203
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   124,949
<EPS-PRIMARY>                                     2.13
<EPS-DILUTED>                                     2.12
<YIELD-ACTUAL>                                    2.21
<LOANS-NON>                                     36,225
<LOANS-PAST>                                    14,489
<LOANS-TROUBLED>                                 2,651
<LOANS-PROBLEM>                                      0
<ALLOWANCE-OPEN>                               147,131
<CHARGE-OFFS>                                    9,780
<RECOVERIES>                                     1,028
<ALLOWANCE-CLOSE>                              147,380
<ALLOWANCE-DOMESTIC>                           115,843
<ALLOWANCE-FOREIGN>                              2,827
<ALLOWANCE-UNALLOCATED>                         28,710
        


</TABLE>


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