WHOLE FOODS MARKET INC
S-3/A, 1998-05-21
GROCERY STORES
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<PAGE>
 
     
    As filed with the Securities and Exchange Commission on May 21, 1998
                                                Registration No. 333-51419      
================================================================================

                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549

                              -------------------
    
                              AMENDMENT NO. 1 TO      

                                   FORM S-3

            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                           WHOLE FOODS MARKET, INC.
            (Exact name of registrant as specified in its charter)

         Texas                                          74-1989366
(State of incorporation)                    (I.R.S. employer identification no.)

                       601 N. Lamar Boulevard, Suite 300
                             Austin, Texas  78703
                                 512-477-4455
      (Address, including zip code, and telephone number, including area
              code, of registrant's principal executive offices)

                              -------------------
                              Glenda J. Flanagan
                            Chief Financial Officer
                           Whole Foods Market, Inc.
                       601 N. Lamar Boulevard, Suite 300
                           Austin, Texas  78703-5413
                                (512) 477-4455
    (Name, address including zip code, and telephone number, including area
                         code, of agents for service)

                              -------------------
                                   Copy to:
                               Bruce H. Hallett
                           Crouch & Hallett, L.L.P.
                        717 N. Harwood St., Suite 1400
                             Dallas, Texas  75201
                                (214) 953-0053

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

     Approximate date of commencement of proposed sale to the public: From time
to time after this Registration Statement becomes effective.
     If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [ ]
     If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [x]
     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [ ]
     If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [ ]
     If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [ ]

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

     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933, AS AMENDED,  OR UNTIL THE REGISTRATION STATEMENT
SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID
SECTION 8(a), MAY DETERMINE.
<PAGE>
 
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 
INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT.  A
REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION.  THESE SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT BECOMES
EFFECTIVE.  THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE SECURITIES
IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 
    
                                  SUBJECT TO COMPLETION, DATED MAY   , 1998     


                                 $308,807,000

                           WHOLE FOODS MARKET, INC.

           ZERO COUPON CONVERTIBLE SUBORDINATED DEBENTURES DUE 2018

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

     This Prospectus relates to $308,807,000 aggregate principal amount at
maturity of Zero Coupon Convertible Subordinated Debentures Due 2018 (the
"Debentures") of Whole Foods Market, Inc., a Texas corporation (the "Company" or
"Whole Foods Market"), that may be offered and sold from time to time by the
several holders thereof (the "Selling Holders"). The Debentures were issued by
the Company on March 2, 1998 and March 16, 1998 pursuant to an Indenture, dated
March 2, 1998 (the "Indenture"), between the Company and Chase Bank of Texas,
National Association, as trustee (the "Trustee"), at the issue price of $372.43
per $1,000 principal amount at maturity (the "Issue Price"). The Debentures will
mature on March 2, 2018. The Issue Price of each Debenture represents a yield to
maturity of 5.0% per annum (computed on a semi-annual bond equivalent basis)
calculated from March 2, 1998, and there will be no periodic payments of
interest. The Company will not receive any proceeds from sales of the Debentures
by the Selling Holders. The Company has agreed to bear certain expenses in
connection with the registration of the Debentures being offered and sold by the
Selling Holders.

     Each Debenture is convertible at the option of the holder thereof (the
"Holder") at any time on or prior to maturity, unless previously redeemed or
otherwise purchased. Upon conversion of a Debenture, the Company will deliver
shares of common stock, no par value, of the Company (the "Common Stock") at a
conversion rate of 5.320 shares per $1,000 principal amount at maturity (the
"Conversion Rate"). The Conversion Rate will not be adjusted for accrued
Original Issue Discount (as defined herein) but will be subject to adjustment
upon the occurrence of certain events affecting the Common Stock. Upon
conversion, a Holder will not receive any cash payment representing accrued
Original Issue Discount; such accrued Original Issue Discount will be deemed
paid by the Common Stock received on conversion. See "Description of
Debentures--Conversion of Debentures." The Common Stock is traded on the Nasdaq
National Market under the symbol "WFMI."

     Each Debenture will be purchased by the Company at the option of the Holder
as of March 2, 2003, March 2, 2008 and March 2, 2013 for Purchase Prices (as
defined herein) equal to the Issue Price plus accrued Original Issue Discount to
such dates. The Company, at its option, may elect to pay any such Purchase Price
in cash or in shares of Common Stock, or any combination thereof. See
"Description of Debentures--Purchase of Debentures at the Option of the Holder."
Debentures may be repurchased at the option of the Holder if there is a Change
in Control (as defined herein) at Purchase Prices equal to the Issue Price plus
accrued Original Issue Discount to the date of repurchase. In certain
circumstances, the Company's ability to so redeem the Debentures may be limited.
See "Description of Debentures--Repurchase at Option of Holders Upon Change in
Control."

   THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
    AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
     SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
         PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.  ANY
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                                        
     SEE "RISK FACTORS" BEGINNING ON PAGE 3 FOR A DISCUSSION OF CERTAIN FACTORS
THAT SHOULD BE CONSIDERED BY PROSPECTIVE PURCHASERS OF THE DEBENTURES AND COMMON
STOCK OFFERED HEREBY.

                        ------------------------------
    
                 The date of this Prospectus is May   , 1998      

<PAGE>
 
     The Debentures are unsecured and subordinated in right of payment to all
existing and future Senior Indebtedness (as defined herein) of the Company.  As
of January 18, 1998 and on a pro forma basis after giving effect to the sale of
the Debentures, the Company had approximately $41.2 million of indebtedness
outstanding that would have constituted Senior Indebtedness and would have had
approximately $100.0 million available to be drawn upon its principal line of
credit. The Debentures will also be effectively subordinated to all existing and
future indebtedness and other liabilities of the Company's subsidiaries.  See
"Description of Debentures--Subordination of Debentures."

     For a discussion of certain United States federal income tax considerations
for Holders of Debentures, see "Certain United States Federal Income Tax
Considerations."

     In addition, the Company has the right to suspend sales under the
Registration Statement under certain circumstances. See "Description of the
Debentures--Registration Rights." Therefore, any sales of Debentures or Common
Stock issued upon conversion of the Debentures may only be offered or sold
during such periods of suspension pursuant to an exemption from the registration
requirements of the Securities Act of 1933, as amended (the "Securities Act").

     The Debentures and Common Stock issued upon conversion of the Debentures
may be offered for sale and sold by the Selling Holders from time to time in
varying amounts at prices and on terms to be determined at the time of sale.  To
the extent required, the name(s) of the Selling Holder(s), the number of
Debentures or shares of Common Stock to be sold, the purchase price, the public
offering price, if applicable, the name of any agent or broker-dealer, and any
applicable commissions, discounts or other items constituting compensation
thereto with respect to a particular offering will be set forth in a supplement
or supplements to this Prospectus (each, a "Prospectus Supplement").  See "Plan
of Distribution."  The Company will not receive any proceeds from any sale of
Debentures or Common Stock hereunder.

     Selling Holders and any broker-dealers or agents that participate with a
Selling Holder in the distribution of any of the Debentures or Common Stock
issued upon conversion of the Debentures may be deemed to be "underwriters"
within the meaning of the Securities Act, and any discount or commission
received by them and any profit on the resale of the Debentures or Common Stock
issued upon conversion of the Debentures purchased by them may be deemed to be
underwriting discounts or commissions under the Securities Act.

                               -----------------
<PAGE>
 
                             AVAILABLE INFORMATION

     Whole Foods Market is subject to the informational requirements of the
Securities Exchange Act of 1934 (the "Exchange Act" or the "1934 Act") and in
accordance therewith files reports and other information with the Securities and
Exchange Commission (the "Commission").  Reports, proxy statements and other
information concerning the Company can be inspected and copied at the public
reference facilities maintained by the Commission at the public reference
facilities maintained by the Commission at Room 1024, 450 Fifth Street, N.W.,
Washington, D.C. 20549; 7 World Trade Center, Suite 1300, New York, New York
10048; and 500 West Madison Street, Suite 1400, Chicago, Illinois 60661.  Copies
of such material can be obtained from the Public Reference Section of the
Commission at 450 Fifth Street, N.W., Washington, D.C. 20549 at prescribed
rates.  Certain reports, proxy statements and other information filed by the
Company may also be obtained at the Commission's World Wide Web site, located at
http://www.sec.gov.  In addition, such material can be inspected at the offices
of the Nasdaq Stock Market, Inc., 1735 K Street, N.W., Washington, D.C. 20006.

                      DOCUMENTS INCORPORATED BY REFERENCE

     The following documents have been filed by the Company with the Commission
and are hereby incorporated by reference herein:

     (a)  The Company's Annual Report on Form 10-K for the fiscal year ended
          September 28, 1997;

     (b)  Quarterly Report on Form 10-Q for the quarter ended January 18, 1998;
          and

     (c)  Current Report on Form 8-K dated March 2, 1998.

     All documents subsequently filed by the Company pursuant to Sections 13(a),
13(c), 14 or 15(d) of the 1934 Act prior to the termination of the offering of
the Shares hereunder shall be deemed to be incorporated herein by reference and
shall be a part hereof from the date of the filing of such documents.  Any
statements contained in a document incorporated or deemed to be incorporated by
reference herein shall be deemed to be modified or replaced for purposes of this
Prospectus to the extent that a statement contained herein or in any other
subsequently filed document which also is or is deemed to be incorporated by
reference herein modifies or replaces such statement.  Any such statement so
modified or replaced shall not be deemed, except as so modified or replaced, to
constitute a part of this Prospectus.

     Whole Foods Market will provide without charge to each person, including
any beneficial owner, to whom a Prospectus is delivered, upon written or oral
request of such person, a copy of the documents incorporated by reference
herein, other than exhibits to such documents not specifically incorporated by
reference. Such requests should be directed to Whole Foods Market, Inc., 601 N.
Lamar Boulevard, Suite 300, Austin, Texas 78703, Attention: Chief Financial
Officer (telephone (512-477-4455).

 

                                       2
<PAGE>
 
                                  THE COMPANY

     Whole Foods Market owns and operates the country's largest chain of natural
foods supermarkets.  The Company opened its first store in Austin, Texas in 1980
and operated 82 stores in 17 states and the District of Columbia as of January
18, 1998.  As a result of both acquisitions and internal expansion, the Company
has grown rapidly from sales of approximately $92.5 million in fiscal 1991 to
over $1.1 billion in fiscal 1997.  In fiscal 1997, the Company's stores had
average sales per square foot of $638, which the Company believes is higher than
most conventional supermarkets or food retailers, including competitors in the
large-store segment of the natural foods industry.  The Company attributes these
results to its ability to differentiate itself from other retailers competing
for consumers' food dollars by tailoring its product mix, service standards and
store environment to satisfy the needs of the natural foods shopper and to
appeal to the broader market of quality-oriented consumers.

     The Company provides its customers the convenience of one-stop shopping by
offering not only a much broader product selection than typical natural foods
stores but also having a full range of merchandise categories comparable to
those available in conventional supermarkets.  The Company's stores average
approximately 23,000 square feet and carry approximately 10,000 to 18,000 stock
keeping units ("SKUs").  The Company is committed to offering its customers the
highest quality products.  It has developed quality goals and features products
that are free of artificial flavors, sweeteners, colors, preservatives and added
chemicals.  To better ensure quality and to enhance merchandising, the Company
has acquired or developed businesses that manufacture and distribute significant
product categories.  For instance, Whole Foods Market operates regional
bakehouses and commissaries, a seafood wharf, a nutritional supplement
manufacturer and a coffee roaster.  In addition, the Company has developed
private label products under the premium "Whole Foods Market" label and value-
priced "365" label to provide its customers with high quality goods available
only at Whole Foods Market stores.

     Through its Amrion, Inc., subsidiary ("Amrion"), acquired in September
1997, the Company is engaged in the manufacture and sale of nutritional
supplements, nutriceuticals and similar fitness and health-related products, a
product category which the Company believes is of significant importance to its
customers. A majority of Amrion's product sales are through direct marketing to
consumers. The Company plans to utilize Amrion's manufacturing and marketing
expertise to improve the quality, assortment and presentation of nutritional
products within its stores. According to an industry analyst's report, the
retail market for vitamin and nutritional supplements is estimated to have grown
at a compound annual growth rate of approximately 13% from $3.5 billion in 1991
to an estimated $6.5 billion in 1996. Recent estimates indicate that
approximately 40% of the U.S. population use nutritional supplements in some
form.

     The Company's principal offices are located at 601 N. Lamar Boulevard,
Suite 300, Austin, Texas 78703, and its telephone number is (512) 477-5566.


                                 RISK FACTORS

     Statements and information presented within this Prospectus contain
"forward-looking statements" within the meaning of Section 21E of the 1934 Act.
These forward-looking statements can be identified by the use of predictive,
future-tense or forward-looking terminology, such as "believes," "anticipates,"
"expects," "estimates," "may," "will" or similar terms. Forward-looking
statements also include projections of financial performance, statements
regarding management's plans and objectives and statements concerning any
assumptions relating to the foregoing. Such statements are subject to 

                                       3
<PAGE>
 
risks and uncertainties that could cause actual results to differ materially
from those set forth in or implied by forward-looking statements. Factors that
could cause or contribute to such differences include those discussed below, as
well as those discussed elsewhere in this Prospectus. ln addition to the other
information contained and incorporated by reference in this Prospectus, the
following risk factors should be considered carefully in evaluating the Company
and its business before purchasing the Debentures offered hereby.

     Dependence on Expansion and Internal Growth. Whole Foods Market's strategy
is to expand through new store openings, the acquisition of existing stores, the
possible acquisition or development of businesses with complementary product
lines and the increase of sales to new and existing customers. Successful
implementation of this strategy is contingent on numerous conditions, some of
which are described below, and there can be no assurance that the Company's
expansion strategy can be successfully executed.

     Continued growth of the Company will depend to a significant degree upon
its ability to open or acquire new stores in existing and new markets and to
operate these stores on a successful basis. Further, the Company's expansion
strategy is dependent on finding suitable locations, and the Company faces
intense competition with other retailers for such sites. There can be no
assurance that the Company will be able to open or acquire new stores in a
timely manner or operate them on a successful basis. In addition, there can be
no assurance that the Company can successfully hire and train new employees and
integrate them into its programs and policies of the Company or adapt its
distribution, management information and other operating systems to the extent
necessary to operate new or acquired stores in a successful and profitable
manner and adequately supply natural foods products to these stores at
competitive prices.

     There can be no assurance that the Company will continue to grow through
acquisitions. To the extent the Company further expands by acquiring existing
businesses, there can be no assurance that it can successfully integrate the
acquired businesses into its operations and support systems, or that the
operations of acquired businesses will not be adversely affected as the
Company's decentralized approach to operations is introduced.

     The Company has recently achieved a higher level of comparable store sales
as compared to historical levels due to a number of factors, including
realization of operating efficiencies in stores acquired from Fresh Fields, the
comparison of sales from stores located in Southern California in fiscal 1996
which were negatively impacted by the name change from Mrs. Gooch's to Whole
Foods Market, improvements in overall store execution and increased sales of
newly released private label products. The Company does not expect to maintain
the same level of comparable store sales increases reported for Fiscal 1998
First Quarter in the future.

     Quarterly Fluctuations. The Company's quarterly results of operations may
fluctuate significantly as the result of the timing of new store openings and
the range of operating results which may be generated from newly opened stores.
The Company expenses pre-opening costs associated with a new store opening
during the quarter in which the store is opened. Accordingly, quarter to quarter
comparisons of results of operations have been and will be materially impacted
by the timing of new store openings. In accordance with the American Institute
of Certified Public Accountants' Statement of Position 98-5, "Reporting on Costs
of Start-up Activities," beginning in the first quarter of fiscal 2000, the
Company will expense pre-opening costs as incurred. In addition, the Company's
quarterly operating results could be adversely affected by factors including
losses from new stores, variations in the mix of product sales, price changes in
response to competitive factors, increases in merchandise costs and possible
supply shortages.

                                       4
<PAGE>
 
     Competition. The Company's competitors include other natural foods stores,
large and small traditional and specialty supermarkets and grocery stores. These
stores compete with the Company in one or more product categories. In addition,
traditional and specialty supermarkets are expanding more aggressively in
marketing a broad range of natural foods and thereby competing directly with the
Company for products, customers and locations. Some of these potential
competitors have been in business longer or have greater financial or marketing
resources than the Company and may be able to devote greater resources to the
sourcing, promotion and sale of their products. Existing or future competitors
also may seek to compete with the Company for acquisition candidates which could
have the effect of increasing the price for acquisitions or reducing the number
of suitable acquisition candidates. In February 1998, the Company opened a store
in Boulder, Colorado, the city in which the headquarters of the Company's
largest natural foods supermarket competitor is located. Increased competition
may have an adverse effect on profitability as the result of lower sales, lower
gross profits and/or greater operating costs.

     The sales of nutritional supplements, nutriceuticals and other fitness and
health-related products are highly competitive, and the Company expects that
Amrion will face such continued competitive pressure in the future. Amrion's
nutritional supplement products, which are its largest source of revenue,
compete on a national and regional basis directly with other specialty health
retailers, nutritional supplement manufacturers and mass merchandisers such as
drug stores and supermarkets. Many of these competitors are substantially larger
and have greater resources than the Company.

     Integration of Acquired Operations. By acquiring new stores and certain
manufacturing businesses in the last several years, the Company has materially
increased the size, scope, complexity and geographic area of its operations by
(i) increasing the number of its stores and entering new markets, and (ii)
including the manufacturing of nutriceuticals and nutritional supplements and
the direct marketing of these products. There can be no assurance that
comparable store sales of acquired stores will increase to or be maintained at
the level achieved by existing Company stores. Additionally, there can be no
assurance that the operations of acquired stores will not be adversely affected
as a result of the introduction of the Company's team approach to store
operations, or the response of customers to the changes in operations and
merchandising mix made by new ownership. With respect to the Company's
acquisition of Amrion's manufacturing operations, there can be no assurance that
current retail stores which are customers of Amrion will continue to do business
with Amrion nor can there be any assurance that the Company can realize the
expected benefits from the acquisition of Amrion. The integration of acquired
operations into the Company will require the dedication of management resources
which may temporarily detract from attention to day-to-day business of the
Company.

     Food Safety. There is increasing governmental scrutiny of and public
awareness regarding food safety. The Company believes that many customers choose
to shop at Whole Foods Market because of their interest in health, nutrition and
food safety. Although the Company has intensified its food safety procedures for
perishables, it anticipates that its customers will hold it to a higher standard
than conventional supermarkets. The sale of contaminated food products, or the
perception of such sale, by the Company could have a material adverse effect on
its operations.

     Negative Impact of Litigation Possible. From time to time the Company is
the subject of various lawsuits arising in the ordinary course of business.
Additionally, like other retailers, distributors and manufacturers of products
that are ingested, the Company faces an inherent risk of exposure to product
liability claims in the event that the use of its products results in injury.
The Company's results could be materially impacted by legal and settlement
expenses related to such lawsuits.

                                       5
<PAGE>
 
     Personnel Matters. The Company is dependent upon a number of key management
and other personnel. The loss of the services of a significant number of key
personnel within a short period of time could have a material adverse effect
upon the Company. The Company's continued success is also dependent upon its
ability to attract and retain qualified employees to meet its future needs. The
Company faces intense competition for qualified personnel, many of whom are
subject to offers from competing employers, and there can be no assurance that
the Company will be able to attract and retain such personnel. The Company does
not maintain key person insurance on any employee

     Sales of Nutritional Supplements and Nutriceuticals. Three product groups
collectively comprise a significant portion of Amrion's net sales. These product
groups are known as Coenzyme Q10, Ginkgo Biloba and Bilberry. Although
historically sales of these products have increased annually, there can be no
assurance this trend will continue or that current revenues attributed to the
products will be maintained. To the extent customer demand for these product
groups declines, Amrion's sales would be adversely affected. To reduce the
potential adverse effect of a decreased demand for any of these products, Amrion
continually adds new products to its existing line.

     The manufacturing, processing, formulating, packaging, labeling and
advertising of products, particularly the nutriceutical and nutritional
supplement products developed, produced and marketed by Amrion, are subject to
regulation by one or more federal agencies, including the United States Food and
Drug Administration (the "FDA"), the Federal Trade Commission (the "FTC"), the
Consumer Product Safety Commission (the "CPSC"), the United States Department of
Agriculture (the "USDA") and the Environmental Protection Agency (the "EPA").
Amrion's activities are also regulated by various agencies of the states,
localities and foreign countries to which Amrion's products are distributed and
in which Amrion's products are sold.

     Whole Foods Market cannot predict the nature of future laws, regulations,
interpretations or applications, nor can it determine what effect either
additional governmental regulations or administrative orders, when and if
promulgated, would have on its business in the future. They could, however,
require the reformulation of certain products to meet new standards, the recall
or discontinuance of certain products not able to be reformulated, additional
record keeping, expanded documentation of the properties of certain products,
expanded or different labeling and/or scientific substantiation. Any or all of
such requirements could have an adverse effect on Whole Foods Market's results
of operations and financial condition.

     Governmental regulations in foreign countries where Amrion plans to expand
sales may prevent or delay entry into the market or prevent or delay the
introduction, or require the reformulation, of certain of Amrion's products.

     In fiscal 1998, the Company will commence construction of a new
manufacturing facility for the production of its Amrion products at a total cost
estimated to be between $20 to $30 million. There can be no assurance that the
Company will be able to timely complete the construction of this facility, that
the facility can be completed within the estimated budget or that Amrion's
operations will not be adversely affected.

     Information System Upgrades and Year 2000 Compliance. The Company
continually evaluates and upgrades its management information systems. The
Company has completed a number of acquisitions in recent years, and the
information systems of some of the acquired operations have not been fully
integrated with the Company's information systems. The Company is in the process
of implementing a new retail inventory system which is designed to upgrade the
information currently available with respect to category management and would
facilitate improvement in inventory turns and 

                                       6
<PAGE>
 
product margins. Although the Company receives detailed information from Amrion,
the Amrion information system is not fully integrated with the Company's system,
and the Company does not intend to replace the Amrion system. Although the
Company does not anticipate any disruption in its operations or financial
reporting as a result of system upgrades or system integrations, there can be no
assurance that such disruption will not occur or that the desired benefits from
the system upgrades will be realized.

     Currently, there is significant uncertainty in the software industry and
among software users regarding the impact of the year 2000 on installed
software. Software database modifications and/or implementation modifications
will be required to enable such software to distinguish between 21st and 20th
century dates. The Company uses third-party system software which will need to
be modified or replaced in order to address year 2000 compliance. The Company
considers the cost to become year 2000 compliant to be a normal operating cost
necessary to periodically upgrade system software.

     Subordination. The Debentures are unsecured and subordinated in right of
payment in full to all existing and future Senior Indebtedness of the Company.
As a result of such subordination, in the event of any insolvency, liquidation
or reorganization of the Company or upon acceleration of the Debentures due to
an event of default, the assets of the Company will be available to pay
obligations on the Debentures and any other subordinated indebtedness of the
Company only after all Senior Indebtedness has been paid in full, and there may
not be sufficient assets remaining to pay amounts due on any or all of the
Debentures and any other subordinated indebtedness of the Company then
outstanding. The Debentures are effectively subordinated to the liabilities,
including trade payables, of the Company's subsidiaries. Since the Company is a
holding company that conducts its operations principally through subsidiaries,
substantially all of the Company's liabilities other than long-term debt are
liabilities of the subsidiaries. The Indenture does not prohibit or limit the
incurrence of Senior Indebtedness or the incurrence of other indebtedness and
other liabilities by the Company or its subsidiaries. The incurrence of such
indebtedness could adversely affect the Company's ability to pay its obligations
on the Debentures. As of January 18, 1998, on a pro forma basis after giving
effect to the sale of the Debentures, the Company would have had approximately
$41.2 million of indebtedness outstanding that would have constituted Senior
Indebtedness and would have had an additional $100.0 million available under its
line of credit. All borrowings under its principal line of credit will
constitute Senior Indebtedness. See "Description of DebenturesCSubordination of
Debentures."

     Limitation on Repurchase of Debentures. On March 2, 2003, March 2, 2008 and
March 2, 2013 (each, a "Purchase Date"), the Company will become obligated to
purchase, at the option of the Holder thereof, any outstanding Debenture,
subject to certain conditions. In addition, upon the occurrence of a Change of
Control, each Holder of Debentures may require the Company to repurchase all or
a portion of such Holder's Debentures. There can be no assurance that the
Company would have sufficient funds or would be able to arrange financing to
repurchase such Debentures. In the case of a purchase by the Company on a
Purchase Date, if the Company did not have sufficient funds, the Company could
be required to issue shares of Common Stock to pay the Purchase Price at
valuations based on the then prevailing market prices. In connection with the
repurchase of such Debentures, on a Change of Control Purchase Date, the Company
may be required to redeem its $40.0 million principal amount of 7.29% Senior
Notes (the "7.29% Senior Notes"). The Company's ability to repurchase the
Debentures in such event may be limited by law, the Indenture and by the terms
of other agreements relating to borrowings that constitute Senior Indebtedness,
as such indebtedness or agreements may be entered into, replaced, supplemented
or amended from time to time, including without limitation, certain provisions
of the 7.29% Senior Notes which would likely prevent the Company from making any
such redemption or repurchase of the Debentures at any time when Holders of the
Debentures have the right to require that the Company repurchase or redeem the
Debentures. The Company may be required to seek the consent of its then existing
lenders to repurchase the Debentures or may be required to refinance Senior

                                       7
<PAGE>
 
Indebtedness in order to make any such payment. If the Company is prohibited
from repurchasing the Debentures, such failure to purchase tendered Debentures
would constitute an Event of Default under the Indenture, which may, in turn,
constitute a further default under certain of the Company's existing agreements
relating to borrowings and the terms of other indebtedness that the Company may
enter into from time to time. In such circumstances, the subordination
provisions in the Indenture would prohibit payments to the Holders of the
Debentures. Furthermore, the Company may not have the financial ability to
repurchase the Debentures in the event payment of Senior Indebtedness is
accelerated. The term "Change in Control" is limited to certain specified
transactions and circumstances and does not include all events that could
adversely affect the Company's financial condition or operating results. The
requirement that the Company offer to repurchase the Debentures upon a Change in
Control will not necessarily protect Holders of the Debentures in the event of a
highly leveraged transaction, reorganization, merger or similar transaction
involving the Company. See "Description of Debentures--Repurchase at Option of
Holders upon Change in Control" and "--Purchase of Debentures at the Option of
the Holder."

     Possible Volatility of the Debentures and Common Stock Price. The market
price of the Debentures and Common Stock could be subject to significant
fluctuation in response to various market factors and events, including
variations in the Company's earnings results, changes in earnings estimates by
securities analysts, publicity regarding the Company, its competitors, the
health food industry generally, new statutes or regulations or changes in the
interpretation of existing statutes or regulations affecting the health food
industry specifically, sales of substantial amounts of Common Stock in the
public market or the perception that such sales could occur and other factors.
In addition, in recent years, the stock market has experienced broad price and
volume fluctuations that often have been unrelated to the operating performance
of particular companies. These market fluctuations also may adversely affect the
market price of the Debentures and the Common Stock. Volatility in the price of
the Company's Common Stock, changes in prevailing interest rates and changes in
perception of the Company's creditworthiness may in the future adversely affect
the price of the Debentures.

                                USE OF PROCEEDS

     The Company will not receive any proceeds from sales of the Debentures or
shares of Common Stock sold from time to time hereunder.  The Company has agreed
to bear certain expenses in connection with the registration of the Debentures
and Common Stock issued upon conversion of the Debentures being offered and sold
by the Selling Holders.

                                       8
<PAGE>
 
                      RATIO OF EARNINGS TO FIXED CHARGES

<TABLE> 
<CAPTION> 
                                                                               Fiscal Quarter   
                                      Fiscal Year Ended (1)                        Ended     
                       -----------------------------------------------------   --------------
                       Sept. 26,  Sept. 25,  Sept. 24,  Sept. 29,  Sept. 28,   
                         1993       1994       1995       1996       1997      Jan. 18, 1998
                       ---------  ---------  ---------  ---------  ---------   --------------
<S>                    <C>        <C>        <C>        <C>        <C>         <C>  
Ratio of earnings 
to fixed charges (2)      --        2.60x      2.08x       --        3.35x         4.25x
 
</TABLE>
- --------------------

(1)  Since September 26, 1993, the Company has completed two acquisitions
     accounted for as pooling-of-interests which required restatement of its
     historical financial information. The Company acquired Fresh Fields Market,
     Inc. ("Fresh Fields") in August 1996 and Amrion in September 1997. Fiscal
     years 1993, 1994, 1995 and 1997 are 52-week years and fiscal year 1996 is a
     53-week year.
(2)  For purposes of computing the ratio of earnings to fixed charges, earnings
     represent income (loss) before income taxes and fixed charges. Fixed
     charges consist of interest expense and such portion of rental expense
     which is representative of interest. For the fiscal years ended September
     26, 1993 and September 29, 1996, earnings are inadequate to cover fixed
     charges in the amounts of $1.8 million and $15.3 million, respectively.

                                       9
<PAGE>
 
                           DESCRIPTION OF DEBENTURES

     The Debentures were issued under the Indenture, a copy of which is filed as
an Exhibit to the Registration Statement and are being registered pursuant to
the registration rights agreement between the Company and the Initial Purchasers
(the "Registration Rights Agreement"), a copy of which is filed as an Exhibit to
the Registration Statement.  Copies of the Indenture and the Registration Rights
Agreement are available from the Trustee upon request by a registered Holder of
Debentures. The following summaries of certain provisions of the Debentures, the
Indenture and the Registration Rights Agreement do not purport to be complete
and are subject to, and are qualified in their entirety by reference to, all the
provisions of the Debentures, the Indenture and the Registration Rights
Agreement, including the definitions therein of certain terms which are not
otherwise defined in this Prospectus. Wherever particular provisions or defined
terms of the Indenture (or of the form of Debenture which is a part thereof) or
the Registration Rights Agreement are referred to, such provisions or defined
terms are incorporated herein by reference.


GENERAL

     The Debentures represent unsecured general obligations of the Company
subordinate in right of payment to certain other obligations of the Company as
described under "--Subordination of Debentures," and convertible into Common
Stock as described under "--Conversion of Debentures." The Debentures are 
limited to $308,807,000 in aggregate principal amount at maturity and mature on
March 2, 2018 (the "Final Maturity Date"). Each Debenture was issued in
principal amounts of $1,000 at maturity and is payable, and the Debentures may
be presented for conversion, registration of transfer and exchange, without
service charge, at the office of the Company maintained for such purpose in New
York, New York, which shall initially be the office or agency of the Trustee.

     The Indenture does not contain any financial covenants or any restrictions
on the payment of dividends, the incurrence of Senior Indebtedness or the
issuance or repurchase of securities of the Company. The Indenture contains no
covenants or other provisions to afford protection to Holders of Debentures in
the event of a highly leveraged transaction or a Change in Control of the
Company except to the extent described under "--Repurchase at Option of Holders
upon Change in Control."

     The Debentures were originally issued at a substantial discount from their
principal amount at maturity. See "Certain Federal Income Tax Considerations--
Original Issue Discount on the Debentures." There will be no periodic payments
of interest on the Debentures. The calculation of the accrual of Original Issue
Discount (the difference between the Issue Price and the principal amount at
maturity of each Debenture) in the period during which each Debenture remains
outstanding is on a semiannual bond equivalent basis using a 360-day year
composed of twelve 30-day months, and such accrual will commence on the issue
date of the Debentures. In the event of the maturity, conversion, purchase by
the Company at the option of a Holder or redemption of a Debenture, Original
Issue Discount, if any, will cease to accrue on such Debenture, under the terms
and subject to the conditions (summaries of which are set forth below) of the
Indenture. The Company may not reissue a Debenture that has matured or been
converted, purchased by the Company at the option of a Holder, redeemed or
otherwise canceled (except for registration of transfer, exchange or replacement
thereof).

     The Indenture is governed by and construed under the laws of the State of
Texas. The Registration Rights Agreement is governed by and construed under the
laws of the State of New York.

                                       10
<PAGE>
 
CONVERSION OF DEBENTURES

     The Holders of Debentures are entitled at any time on or prior to the close
of business on the Final Maturity Date to convert any Debentures or portions
thereof (in denominations of $1,000 principal amount at maturity or multiples
thereof) into Common Stock; provided, however, that if a Debenture is called for
redemption, the Holder may convert it at any time before the close of business
on the Redemption Date. On conversion of a Debenture, the Company will deliver
shares of Common Stock (except the Company may deliver cash in lieu of
fractional shares). A Debenture in respect of which a Holder has delivered a
Purchase Notice or a Change in Control Purchase Notice exercising the option of
such Holder to require the Company to purchase such Debenture may be converted
only if such notice is withdrawn by a written notice of withdrawal delivered by
the Holder to the Trustee prior to the close of business on the Purchase Date or
the Change in Control Purchase Date, as the case may be, in accordance with the
terms of the Indenture.

     A Holder otherwise entitled to a fractional share of Common Stock will
receive cash in an amount equal to the product of such fractional share and the
Market Price (as defined below). A Holder may convert a portion of such Holder's
Debentures so long as such portion is $1,000 principal amount at maturity or an
integral multiple thereof.

     The initial Conversion Rate for the Debentures is 5.320 shares of Common
Stock per $1,000 principal amount at maturity and is subject to adjustment
(under formulae set forth in the Indenture) in certain events, including: (i)
the issuance of Common Stock as a dividend or distribution on Common Stock of
the Company; (ii) certain subdivisions and combinations of the Common Stock;
(iii) the issuance to all Holders of Common Stock of certain rights or warrants
to purchase Common Stock; (iv) the distribution to all Holders of Common Stock
of shares of capital stock of the Company (other than Common Stock) or evidences
of indebtedness of the Company or assets (including securities, but excluding
those rights, warrants, dividends and distributions referred to above and
dividends and distributions in connection with the liquidation, dissolution or
winding up of the Company or paid in cash); (v) dividends or other distributions
consisting exclusively of cash (excluding any cash portion of distributions
referred to in clause (iv)) to all Holders of Common Stock to the extent that
such distributions, combined together with (A) all other such all-cash
distributions made within the preceding 12 months in respect of which no
adjustment has been made plus (B) any cash and the fair market value of other
consideration payable in respect of any tender offers by the Company for Common
Stock concluded within the preceding 12 months in respect of which no adjustment
has been made, exceeds 10% of the Company's market capitalization (being the
product of the then-current market price of the Common Stock multiplied by the
number of shares of Common Stock then outstanding on the Record Date for such
distribution); (vi) the purchase of Common Stock pursuant to a tender offer made
by the Company or any of its subsidiaries to the extent that the same involves
an aggregate consideration that, together with (X) any cash and the fair market
value of any other consideration payable in any other tender offer by the
Company or any of its subsidiaries for Common Stock expiring within the 12
months preceding such tender offer in respect of which no adjustment has been
made plus (Y) the aggregate amount of any such all-cash distributions referred
to in clause (v) above to all Holders of Common Stock within the 12 months
preceding the expiration of such tender offer in respect of which no adjustments
have been made, exceeds 10% of the Company's market capitalization on the
expiration of such tender offer; and (vii) payment in respect of a tender offer
or exchange offer by a person other than the Company or any subsidiary of the
Company in which, as of the closing date of the offer, the Board of Directors is
not recommending rejection of the offer. If an adjustment is required to be made
as set forth in clause (v) above as a result of a distribution that is not a
quarterly dividend, such adjustment would be based upon the full amount of the
distribution. The adjustment referred to in clause (vii) above will only be made
if the tender offer or exchange offer is for an amount which increases that
person's

                                       11
<PAGE>
 
ownership of Common Stock to more than 25% of the total shares of Common Stock
outstanding and if the cash and value of any other consideration included in
such payment per share of Common Stock exceeds the Current Market Price per
share of Common Stock on the business day next succeeding the last date on which
tenders or exchanges may be made pursuant to such tender or exchange offer. The
adjustment referred to in clause (vii) above will not be made, however, if, as
of the closing of the offer, the offering documents with respect to such offer
disclose a plan or an intention to cause the Company to engage in a
consolidation or merger of the Company or a sale of the Company's assets, as an
entirety or substantially as an entirety.

     In addition, the Indenture provides that if the Company implements a
stockholders' rights plan, such rights plan must provide that, upon conversion
of the Debentures, the Holders will receive, in addition to the Common Stock
issuable upon such conversion, such rights whether or not such rights have
separated from the Common Stock at the time of such conversion.

     No adjustment in the Conversion Rate will be required unless such
adjustment would require a change of at least 1% in the Conversion Rate then in
effect, provided that any adjustment that would otherwise be required to be made
shall be carried forward and taken into account in any subsequent adjustment.
Except as stated above, the Conversion Rate will not be adjusted for the
issuance of Common Stock or any securities convertible into or exchangeable for
Common Stock or carrying the right to purchase any of the foregoing.

     In the case of (i) any reclassification or change of the Common Stock or
(ii) a consolidation, merger or combination involving the Company or a sale or
conveyance to another person of the property and assets of the Company as an
entirety or substantially as an entirety, in each case as a result of which
Holders of Common Stock shall be entitled to receive stock, other securities,
other property or assets (including cash) with respect to or in exchange for
such Common Stock, the Holders of the Debentures then outstanding will be
entitled thereafter to convert such Debentures into the kind and amount of
shares of stock, other securities or other property or assets which they would
have owned or been entitled to receive upon such reclassification, change,
consolidation, merger, combination, sale or conveyance had such Debentures been
converted into Common Stock immediately prior to such reclassification, change,
consolidation, merger, combination, sale or conveyance assuming that a Holder of
Debentures would not have exercised any rights of election as to the stock,
other securities or other property or assets receivable in connection therewith.

     To convert a Debenture, a Holder must (i) complete and manually sign the
conversion notice on the Debenture (or complete and manually sign a facsimile
thereof) and deliver such notice to the Conversion Agent (initially the Trustee)
at the office maintained by the Conversion Agent for such purpose, (ii)
surrender the Debenture to the Conversion Agent, (iii) if required, furnish
appropriate endorsements and transfer documents, and (iv) if required, pay all
transfer or similar taxes. Pursuant to the Indenture, the date on which all of
the foregoing requirements have been satisfied is the Conversion Date.

     Upon conversion of a Debenture, a Holder will not receive any cash payment
representing accrued Original Issue Discount. The Company's delivery to the
Holder of the fixed number of shares of Common Stock into which the Debenture is
convertible (together with the cash payment, if any, in lieu of any fractional
shares) will satisfy the Company's obligation to pay the principal amount at
maturity of the Debenture, including the accrued Original Issue Discount
attributable to the period from the Issue Date to the Conversion Date. Thus, the
accrued Original Issue Discount will be deemed to be paid in full rather than
canceled, extinguished or forfeited. The Conversion Rate will not be adjusted at
any time during the term of the Debentures for accrued Original Issue Discount.
A certificate for the number of full shares of Common Stock into which any
Debenture is converted (and for cash in lieu of fractional 

                                       12
<PAGE>
 
shares) will be delivered through the Conversion Agent no later than the seventh
business day following the Conversion Date. For a discussion of the tax
treatment of a Holder receiving Common Stock upon conversion, see "Certain
Federal Income Tax Considerations--Conversion of Debentures."

     Upon conversion of any Debenture, such shares will be delivered through the
Conversion Agent no later than the seventh Business Day (as defined in the
Indenture) following the Conversion Date.

     In the event of a taxable distribution to Holders of Common Stock which
results in an adjustment of the Conversion Rate (or in which Holders otherwise
participate) or in the event the Conversion Rate is increased at the discretion
of the Company, the Holders of the Debentures may in certain circumstances, be
deemed to have received a distribution subject to United States federal income
tax as a dividend. See "Certain Federal Income Tax Considerations--Dividends;
Adjustment of Conversion Rate."

     The Company from time to time may, to the extent permitted by law, increase
the Conversion Rate of the Debentures by any amount for any period of at least
20 days, in which case the Company shall give at least 15 days' notice of such
increase, if the Board of Directors has made a determination that such increase
would be in the best interests of the Company, which determination shall be
conclusive. See "Certain Federal Income Tax Considerations--Dividends; 
Adjustment of Conversion Rate." The Company may, at its option, make such
increases in the Conversion Rate, in addition to those set forth above, as the
Board of Directors deems advisable to avoid or diminish any income tax to
Holders of Common Stock resulting from any dividend or distribution of stock (or
rights to acquire stock) or from any event treated as such for income tax
purposes. See "Certain Federal Income Tax Considerations--Dividends; Adjustment
of Conversion Rate."

OPTIONAL REDEMPTION BY THE COMPANY

     The Debentures are not entitled to any sinking fund. At any time on or
after March 2, 2003, all or any part of the Debentures will be redeemable at the
Company's option on at least 30 but not more than 60 days' notice for cash, as a
whole or, from time to time in part. Any such redemption must be in multiples of
$1,000 principal amount at maturity.

     The table below shows Redemption Prices of Debentures per $1,000 principal
amount at maturity on March 2, 2003, at each Redemption Date thereafter prior to
maturity, and at maturity on March 2, 2018, which prices reflect the accrued
Original Issue Discount calculated to each such date. The Redemption Price of a
Debenture redeemed between such dates would include an additional amount
reflecting the additional Original Issue Discount accrued since the next
preceding date in the table to, but excluding the Redemption Date.

                                   (1)              (2)              (3)
                                   ---              ---              ---
                                              ACCRUED ORIGINAL    REDEMPTION
                                              ----------------    ----------
                                DEBENTURE      ISSUE DISCOUNT       PRICE   
                                ---------      --------------       -----   
   REDEMPTION DATE             ISSUE PRICE        AT 5.00%        (1) + (2) 
   ---------------             -----------        --------        --------- 

   March 2, 2003...........    $  372.43         $  104.31        $  476.74

   March 2, 2004...........       372.43            128.45           500.88

   March 2, 2005...........       372.43            153.80           526.23

   March 2, 2006...........       372.43            180.45           552.88

   March 2, 2007...........       372.43            208.43           580.86

   March 2, 2008...........       372.43            237.84           610.27

                                       13
<PAGE>
 
   March 2, 2009...........       372.43            268.74           641.17

   March 2, 2010...........       372.43            301.19           673.62

   March 2, 2011...........       372.43            335.30           707.73

   March 2, 2012...........       372.43            371.13           743.56

   March 2, 2013...........       372.43            408.77           781.20

   March 2, 2014...........       372.43            448.32           820.75

   March 2, 2015...........       372.43            489.87           862.30

   March 2, 2016...........       372.43            533.52           905.95

   March 2, 2017...........       372.43            579.38           951.81

   At Stated Maturity......       372.43            627.57         1,000.00

     If fewer than all the Debentures are to be redeemed, the Trustee will
select the Debentures to be redeemed in principal amounts at maturity of $1,000
or integral multiples thereof by lot or, in its discretion, on a pro rata basis.
If any Debenture is to be redeemed in part only, a new Debenture or Debentures
in principal amount equal to the unredeemed principal portion thereof will be
issued. If a portion of a Holder's Debentures is selected for partial redemption
and such Holder converts a portion of such Debentures, such converted portion
shall be deemed to be taken from the portion selected for redemption.

REPURCHASE AT OPTION OF HOLDERS UPON CHANGE IN CONTROL

     The Indenture provides that if a Change in Control occurs, each Holder of
Debentures shall have the right to require the Company to repurchase all of such
Holder's Debentures, or any portion of the principal amount thereof that is an
integral multiple of $1,000 principal amount at maturity, on the date (the
"Change in Control Purchase Date") that is 20 days after the date of the Company
Change in Control Notice (as defined below), for cash at a price equal to the
Issue Price plus accrued Original Issue Discount to the Change in Control
Purchase Date (the "Change in Control Purchase Price").

     Within 15 days after the occurrence of a Change in Control, the Company or,
at the Company's request, the Trustee is obligated to mail to all Holders of
record of Debentures a notice (the "Company Change in Control Notice") of the
occurrence of such Change in Control and of the repurchase right arising as a
result thereof. The Company must also deliver a copy of the Company Change in
Control Notice to the Trustee. To exercise the repurchase right, a Holder of
such Debentures must deliver to the Trustee on or before the Change in Control
Purchase Date, written notice of the Holder's exercise of such right, together
with the Debentures with respect to which the right is being exercised, duly
endorsed for transfer to the Company (the "Change in Control Purchase Notice").

     A "Change in Control" will be deemed to have occurred at such time after
the original issuance of the Debentures as:

     (i)  any Person (as defined) (including any syndicate or group deemed to be
a "person" under Section 13(d)(3) of the Exchange Act), other than the Company,
any subsidiary of the Company, or any employee benefit plan of the Company or
any such subsidiary, is or becomes the beneficial owner, directly or indirectly,
through a purchase or other acquisition transaction or series of transactions
(other than a merger or consolidation involving the Company), of shares of
capital stock of the Company entitling such Person to exercise in excess of 50%
of the total voting power of all shares of capital stock of the Company entitled
to vote generally in the election of directors;

                                       14
<PAGE>
 
     (ii)  there occurs any consolidation of the Company with, or merger of the
Company into, any other Person, any merger of another Person into the Company,
or any sale or transfer of the assets of the Company, as an entirety or
substantially as an entirety, to another Person (other than (a) any such
transaction pursuant to which the Holders of the Common Stock immediately prior
to such transaction have, directly or indirectly, shares of capital stock of the
continuing or surviving corporation immediately after such transaction which
entitle such Holders to exercise in excess of 50% of the total voting power of
all shares of capital stock of the continuing or surviving corporation entitled
to vote generally in the election of directors and (b) any merger (1) which does
not result in any reclassification, conversion, exchange or cancellation of
outstanding shares of Common Stock or (2) which is effected solely to change the
jurisdiction of incorporation of the Company and results in a reclassification,
conversion or exchange of outstanding shares of Common Stock solely into shares
of common stock and separate series of common stock carrying substantially the
same relative rights as the Common Stock); or

     (iii) a change in the Board of Directors of the Company in which the
individuals who constituted the Board of Directors of the Company at the
beginning of the two-year period immediately preceding such change (together
with any other director whose election by the Board of Directors of the Company
or whose nomination for election by the stockholders of the Company was approved
by a vote of at least a majority of the directors then in office either who were
directors at the beginning of such period or whose election or nomination for
election was previously so approved) cease for any reason to constitute a
majority of the directors then in office;

provided, however, that a Change in Control shall not be deemed to have occurred
if either (a) the closing price per share of the Common Stock for any ten
Trading Days (each, a "Pricing Trading Date") within the period of 20
consecutive Trading Days ending immediately before the Change in Control shall
equal or exceed 105% of the price determined by dividing (i) the sum of the
Issue Price plus Original Issue Discount accrued to such Trading Day, by (ii)
the Conversion Rate, provided that at least five Pricing Trading Dates occur
within the 10 consecutive Trading Days ending immediately before the Change in
Control or (b) (i) at least 90% of the consideration (excluding cash payments
for fractional shares) in the transaction or transactions constituting the
Change in Control consists of shares of common stock with full voting rights
traded on a national securities exchange or quoted on the Nasdaq National Market
(or which will be so traded or quoted when issued or exchanged in connection
with such Change in Control) (such securities being referred to as "Publicly
Traded Securities") and as a result of such transaction or transactions such
Debentures become convertible solely into such Publicly Traded Securities and
(ii) the consideration in the transaction or transactions constituting the
Change in Control consists of cash, Publicly Traded Securities or a combination
of cash and Publicly Traded Securities with an aggregate fair market value
(which, in the case of Publicly Traded Securities, shall be equal to the average
closing price of such Publicly Traded Securities during the ten consecutive
Trading Days commencing with the sixth Trading Day following consummation of the
transaction or transactions constituting the Change in Control) of at least 105%
of the price determined by dividing (i) the sum of the Issue Price plus Original
Issue Discount accrued to the date immediately preceding the date of
consummation of such Change of Control, by (ii) the Conversion Rate. The term
"beneficial owner" shall be determined in accordance with Rule 13d-3 promulgated
by the Commission under the Exchange Act.

     To the extent applicable, the Company will comply with the provisions of
Rule 13e-4 or any other tender offer rules, and will file a Schedule 13E-4 or
any other schedule required under such rules, in connection with any offer by
the Company to repurchase Debentures upon a Change in Control.

     The Change in Control feature of the Debentures may in certain
circumstances make more difficult or discourage a takeover of the Company and,
thus, the removal of incumbent management. The repurchase right is not the
result of management's knowledge of any effort to accumulate any 

                                       15
<PAGE>
 
Common Stock or to obtain control of the Company by means of a merger, tender
offer, solicitation or otherwise, or part of a plan by management to adopt a
series of anti-takeover provisions. Instead, this right is the result of
negotiations between the Company and the Initial Purchasers.

     The foregoing provisions would not necessarily afford Holders of the
Debentures protection in the event of a highly leveraged transaction, certain
changes in control of the Company or other transactions involving the Company
that may adversely affect Holders.

     The Company's ability to repurchase Debentures upon the occurrence of a
Change in Control is subject to limitations. If a Change in Control were to
occur, there could be no assurance that the Company would have sufficient
financial resources, or would be able to arrange financing, to pay the
repurchase price for all Debentures tendered by Holders thereof. Under the
occurrence of a Change in Control the Company may be required to redeem its
$40.0 million principal amount of 7.29% Senior Notes. In addition, the terms of
certain of the Company's then-existing debt agreements may prohibit the Company
from purchasing any Debentures and also identify certain events that would
constitute a Change in Control, as well as certain other events with respect to
the Company or certain of its subsidiaries, which would constitute an event of
default under such debt agreements, including, without limitation, certain
provisions of the Company's line of credit and its $40.0 million principal
amount of 7.29% Senior Notes which would likely prevent the Company from making
any such redemption or repurchase of the Debentures at any time when Holders of
the Debentures have the right to require that the Company repurchase or redeem
the Debentures. Any future credit agreements or other agreements related to
other Indebtedness (including other Senior Indebtedness) to which the Company
becomes a party may contain similar restrictions and provisions. In the event a
Change in Control occurs at a time when the Company is prohibited from
repurchasing Debentures, the Company could seek the consent of its lenders to
repurchase the Debentures or could attempt to refinance the borrowings that
contain such prohibition. If the Company does not obtain such a consent or repay
such borrowings, the Company would remain prohibited from repurchasing
Debentures. Any failure by the Company to repurchase the Debentures when
required following a Change in Control would result in an Event of Default under
the Indenture whether or not such repurchase is permitted by the subordination
provisions of the Indenture. Any such default may, in turn, cause a default
under Senior Indebtedness of the Company. Moreover, the occurrence of a Change
in Control may cause an event of default under Senior Indebtedness of the
Company. As a result, in each such case, any repurchase of the Debentures would,
absent a waiver, be prohibited under the subordination provisions of the
Indenture until the Senior Indebtedness is paid in full. See "--Subordination of
Debentures," "Risk Factors--Subordination" and "Risk Factors--Limitation on
Repurchase of Debentures."

PURCHASE OF DEBENTURES AT THE OPTION OF THE HOLDER

     On March 2, 2003, March 2, 2008 and March 2, 2013, (each a "Purchase
Date"), the Company becomes obligated to purchase, at the option of the Holder
thereof, any outstanding Debenture for which a written notice has been delivered
by the Holder to the office of the Paying Agent (initially the Trustee) (a
"Purchase Notice") at any time from the opening of business on the date that is
20 Business Days prior to such Purchase Date until the close of business on such
Purchase Date and for which such Purchase Notice has not been withdrawn, subject
to certain additional conditions.

     The Purchase Notice shall state (i) the certificate numbers of the
Debentures to be delivered by the Holder thereof for purchase by the Company;
(ii) the portion of the principal amount at maturity of Debentures to be
purchased, which portion must be $1,000 or a multiple thereof; (iii) that such
Debentures are to be purchased by the Company pursuant to the applicable
provisions of the Debentures; and (iv) in the event the Company elects, pursuant
to the Company Notice (as defined 

                                       16
<PAGE>
 
below), to pay the Purchase Price to be paid as of such Purchase Date in Common
Stock, in whole or in part, but such Purchase Price is ultimately to be paid to
such Holder entirely in cash because any of the conditions to payment of the
Purchase Price (or portion thereof) in Common Stock is not satisfied by the
Purchase Date, as described below, whether such Holder elects (x) to withdraw
such Purchase Notice as to some or all of the Debentures to which it relates
(stating the principal amount at maturity and certificate numbers of the
Debentures as to which such withdrawal shall related), or (y) to receive cash in
respect of the entire Purchase Price for all Debentures subject to such Purchase
Notice. If the Holder fails to indicate, in the Purchase Notice and in any
written notice of withdrawal relating to such Purchase Notice, such Holder's
choice with respect to the election described in clause (iv) above, such Holder
shall be deemed to have elected to receive cash in respect of the entire
Purchase Price for all Debentures subject to such Purchase Notice in such
circumstances. For a discussion of the tax treatment of a Holder receiving cash
instead of Common Stock, see "Certain Federal Income Tax Considerations."

     Any Purchase Notice may be withdrawn by the Holder by a written notice of
withdrawal delivered to the Paying Agent prior to the close of business on the
Purchase Date. The notice of withdrawal shall state the principal amount at
maturity and the certificate numbers of the Debentures as to which the
withdrawal notice relates and the principal amount at maturity, if any, which
remains subject to the Purchase Notice.

     The Purchase Price payable in respect of a Debenture shall be equal to the
Issue Price plus accrued Original Issue Discount to the Purchase Date. The table
below shows the Purchase Prices of a Debenture as of the specified Purchase
Dates. The Company may elect to pay the Purchase Price payable as of any
Purchase Date in cash or shares of Common Stock, or any combination thereof.

                                                                 PURCHASE
                                                                 --------
          PURCHASE DATE                                            PRICE
          -------------                                            -----
          March 2, 2003.....................................      $476.74

          March 2, 2008.....................................       610.27
 
          March 2, 2013.....................................       781.20

     If the Company elects to pay the Purchase Price, in whole or in part, in
shares of Common Stock, the number of shares to be delivered in respect of the
portion of the Purchase Price to be paid in shares of Common Stock shall be
equal to such portion of the Purchase Price divided by the Market Price (as
defined below) of the Common Stock. However, no fractional shares of Common
Stock will be delivered upon any purchase by the Company of Debentures through
the delivery of shares of Common Stock in payment, in whole or in part, of the
Purchase Price. Instead, the Company will pay cash based on the Market Price for
all fractional shares of Common Stock.

     The Company will give notice (the "Company Notice") not less than 20
Business Days prior to the Purchase Date (the "Company Notice Date") to all
Holders at their addresses shown in the register of the Registrar (and to
beneficial owners as required by applicable law) stating, among other things,
whether the Company will pay the Purchase Price of the Debentures in cash or
Common Stock, or any combination thereof (specifying the percentage of each)
and, if the Company elects to pay in Common Stock, in whole or in part, the
method of calculating the Market Price of the Common Stock.

     The "Market Price" means the average of the Sale Prices (as defined below)
of the Common Stock for the five trading day period ending on (if the third
Business Day prior to the applicable Purchase Date is a trading day or, if not,
then on the last trading day prior to) the third Business Day prior to the
applicable Purchase Date, appropriately adjusted to take into account the
occurrence during the period 

                                       17
<PAGE>
 
commencing on the first of such trading days during such five trading day period
and ending on such Purchase Date of certain events that would result in an
adjustment of the Conversion Rate with respect to the Common Stock. The "Sale
Price" of the Common Stock on any date means the closing per share sale price
(or if no closing sale price is reported, the average bid and ask prices or, if
more than one in either case, the average of the average bid and average ask
prices) on such date as reported in the composite transactions for the principal
United States securities exchange on which the Common Stock is traded or, if the
Common Stock is not listed on a United States national or regional stock
exchange, as reported by the National Association of Securities Dealers
Automated Quotation System. Because the Market Price of the Common Stock is
determined prior to the applicable Purchase Date, Holders of Debentures bear the
market risk with respect to the value of the Common Stock to be received from
the date such Market Price is determined to such Purchase Date. The Company may
elect to pay the Purchase Price in Common Stock only if the information
necessary to calculate the Market Price is reported in a daily newspaper of
national circulation.

     Upon determination of the actual number of shares of Common Stock in
accordance with the foregoing provisions, the Company will publish such
determination in a daily newspaper of national circulation.

     The Company's right to purchase Debentures with shares of Common Stock is
subject to the Company satisfying various conditions, including: (i) the
registration of the Common Stock under the Securities Act, if required; and (ii)
compliance with other applicable federal and state securities laws, if any. If
such conditions are not satisfied by a Purchase Date, the Company will pay the
Purchase Price of the Debentures to be purchased on such Purchase Date entirely
in cash. See "Certain Federal Income Tax Considerations." The Company will
comply with the provisions of Rule 13e-4 and any other tender offer rules under
the Exchange Act which may then be applicable and will file Schedule 13E-4 or
any other schedule required thereunder in connection with any offer by the
Company to purchase Debentures at the option of Holders.

     Payment of the Purchase Price for a Debenture for which a Purchase Notice
has been delivered and not withdrawn is conditioned upon book-entry transfer or
delivery of such Debenture (together with necessary endorsements) to the Paying
Agent at its office in New York, New York, or any other office of the Paying
Agent maintained for such purpose, at any time (whether prior to, on or after
the Purchase Date) after delivery of such Purchase Notice. Payment of the
Purchase Price for such Debenture will be made promptly following the later of
the Purchase Date or the time of book-entry transfer or delivery of such
Debenture. If the Paying Agent holds, in accordance with the terms of the
Indenture, money or securities sufficient to pay the Purchase Price of such
Debenture on the Business Day following the Purchase Date, then, on and after
such date, such Debenture will cease to be outstanding and Original Issue
Discount on such Debenture will cease to accrue, whether or not book-entry
transfer of such Debenture is made or such Debenture is delivered to the Paying
Agent, and all other rights of the Holder shall terminate (other than the right
to receive the Purchase Price upon delivery of the Debenture).

     The Company's ability to repurchase Debentures with cash could be subject
to certain limitations. There could be no assurance that the Company would have
sufficient financial resources, or would be able to arrange financing, to
repurchase the Debentures tendered by all Holders thereof. In connection with
the repurchase of such Debentures, the Company may be required to redeem its
$40.0 million principal amount of 7.29% Senior Notes.

     No Debentures may be purchased at the option of the Holder for cash if
there has occurred (prior to, on or after the giving, by the Holders of such
Debentures, of the required Purchase Notice) and is 

                                       18
<PAGE>
 
continuing an Event of Default described under "Event of Default and Remedies"
below (other than a default in the payment of the Purchase Price with respect to
such Debentures).

SUBORDINATION OF DEBENTURES

     The Indebtedness evidenced by the Debentures is subordinated to the extent
provided in the Indenture to the prior payment in full of all Senior
Indebtedness whether presently outstanding or hereafter incurred or created.
Upon any distribution of assets of the Company upon any dissolution, winding up,
liquidation or reorganization, the payment of the principal and accrued Original
Issue Discount on the Debentures is to be subordinated to the extent provided in
the Indenture in right of payment to the prior payment, in full, in cash of all
Senior Indebtedness. In the event of any acceleration of the Debentures because
of an Event of Default (as defined in the Indenture), the Holders of any Senior
Indebtedness then outstanding would be entitled to payment in full in cash of
all obligations in respect of such Senior Indebtedness before the Holders of the
Debentures are entitled to receive any payment or distribution in respect
thereof. The Indenture will require that the Company promptly notify Holders of
Senior Indebtedness if payment of the Debentures is accelerated because of an
Event of Default.

     The Company also may not make any payment upon or in respect of the
Debentures, whether at maturity or upon optional redemption, Change in Control
or purchase at option of the Holder, if (i) a default in the payment of the
principal of, premium, if any, interest, lease payment or other obligations in
respect of Senior Indebtedness occurs and is continuing beyond any applicable
period of grace or (ii) any other default occurs and is continuing with respect
to Designated Senior Indebtedness (as defined) that permits Holders of the
Designated Senior Indebtedness as to which such default relates to accelerate
its maturity and the Trustee receives a notice of such default (a "Payment
Blockage Notice") from the Company or other person permitted to give such notice
under the Indenture. Payments on the Debentures may and shall be resumed (a) in
case of a payment default, upon the date on which such default is cured or
waived and (b) in case of a nonpayment default, the earlier of the date on which
such nonpayment default is cured or waived or 179 days after the date on which
the applicable Payment Blockage Notice is received if the maturity of such
Designated Senior Indebtedness has not been accelerated. No new period of
payment blockage may be commenced pursuant to a Payment Blockage Notice unless
and until (i) 365 days have elapsed since the initial effectiveness of the
immediately prior Payment Blockage Notice and (ii) all scheduled payments of
principal and accrued Original Issue Discount on the Debentures that have come
due have been paid in full in cash. No nonpayment default that existed or was
continuing on the date of delivery of any Payment Blockage Notice to the Trustee
shall be, or be made, the basis for a subsequent Payment Blockage Notice.

     By reason of the subordination provisions described above, in the event of
the Company's bankruptcy, dissolution or reorganization, Holders of Senior
Indebtedness may receive more, ratably, and Holders of the Debentures may
receive less, ratably, than the other creditors of the Company. Such
subordination will not prevent the occurrence of any Event of Default under the
Indenture.

     The term "Senior Indebtedness" means the principal of, premium, if any,
interest (including all interest accruing subsequent to the commencement of any
bankruptcy or similar proceeding, whether or not a claim for post-petition
interest is allowable as a claim in any such proceeding) and rent payable on or
in connection with, and all fees, costs, expenses and other amounts accrued or
due on or in connection with, Indebtedness (as defined) of the Company, whether
outstanding on the date of the Indenture or thereafter created, incurred,
assumed, guaranteed or in effect guaranteed by the Company (including all
deferrals, renewals, extensions or refinancing of, or amendments, modifications
or supplements to, the foregoing), unless in the case of any particular
Indebtedness the instrument creating or evidencing the same or the assumption or
guarantee thereof expressly provides that such 

                                       19
<PAGE>
 
Indebtedness shall not be senior in right of payment to the Debentures or
expressly provides that such Indebtedness is "pari passu" or "junior" to the
Debentures. Notwithstanding the foregoing, the term Senior Indebtedness shall
not include any Indebtedness of the Company to any Subsidiary (as defined in the
Indenture) of the Company.

     The term "Indebtedness" means, with respect to any Person (as defined in
the Indenture), and without duplication, (a) the principal of and premium, if
any, and interest on, and fees, costs, enforcement expenses, collateral
protection expenses and other reimbursement or indemnity obligations in respect
to all indebtedness or obligations of the Company to any Person, including but
not limited to banks and other lending institutions, for money borrowed that is
evidenced by a note, bond, debenture, loan agreement, or similar instrument or
agreement (including purchase money obligations with original maturities in
excess of one year and noncontingent reimbursement obligations in respect of
amounts paid under letters of credit); (b) all reimbursement obligations and
other liabilities (contingent or otherwise) of such Person with respect to
letters of credit, bank guarantees or bankers' acceptances, (c) all obligations
and liabilities (contingent or otherwise) in respect of leases of such Person
required, in conformity with generally accepted accounting principles, to be
accounted for as capital lease obligations on the balance sheet of such Person,
(d) all obligations of such Person (contingent or otherwise) with respect to an
interest rate or other swap, cap or collar agreement or other similar instrument
or agreement or foreign currency hedge, exchange, purchase or similar instrument
or agreement, (e) all direct or indirect guaranties or similar agreements by
such Person in respect of, and obligations or liabilities (contingent or
otherwise) of such Person to purchase or otherwise acquire, or otherwise assure
a creditor against loss in respect of, indebtedness, obligations or liabilities
of another Person of the kind described in clauses (a) through (d), (f) any
indebtedness or other obligations, excluding any operating leases the Company is
currently (or may become) a party to, described in clauses (a) through (d)
secured by any mortgage, pledge, lien or other encumbrance existing on property
which is owned or held by such Person, regardless of whether the indebtedness or
other obligation secured thereby shall have been assumed by such Person and (g)
any and all deferrals, renewals, extensions and refinancing of, or amendments,
modifications or supplements to, any indebtedness, obligation or liability of
the kind described in clauses (a) through (f).

     The term "Designated Senior Indebtedness" means the Company's indebtedness
outstanding from time to time under its revolving credit facility and any
particular Senior Indebtedness in which the instrument creating or evidencing
the same or the assumption or guarantee thereof (or related agreements or
documents to which the Company is a party) expressly provides that such Senior
Indebtedness shall be "Designated Senior Indebtedness" for purposes of the
Indenture (provided that such instrument, agreement or other document may place
limitations and conditions on the right of such Senior Indebtedness to exercise
the rights of Designated Senior Indebtedness).

     Any right of the Company to receive any assets of any of its subsidiaries
upon their liquidation or reorganization (and the consequent right of the
Holders of the Debentures to participate in those assets) will be effectively
subordinated to the claims of that subsidiary's creditors (including trade
creditors), except to the extent that the Company is itself recognized as a
creditor of such subsidiary, in which case the claims of the Company would still
be subordinate to any security interest in the assets of such subsidiary and any
indebtedness of such subsidiary senior to that held by the Company. Because the
Company is a holding company that conducts its operations principally through
subsidiaries, substantially all of the Company's liabilities other than long-
term debt are liabilities of the subsidiaries.

     At January 18, 1998, on a pro forma basis after giving effect to the sale
of the Debentures, the Company would have had approximately $41.2 million of
indebtedness outstanding that would have constituted Senior Indebtedness and
would have had approximately $100.0 million available to be drawn 

                                       20
<PAGE>
 
upon its principal line of credit. The Indenture does not limit the amount of
additional Indebtedness, including Senior Indebtedness, which the Company can
create, incur, assume or guarantee, nor will the Indenture limit the amount of
Indebtedness which any Subsidiary can create, incur, assume or guarantee.

     In the event that, notwithstanding the foregoing, the Trustee or any Holder
of Debentures receives any payment or distribution of assets of the Company of
any kind in contravention of any of the subordination provisions of the
Indenture, whether in cash, property or securities, including, without
limitation, by way of set-off or otherwise, in respect of the Debentures before
all Senior Indebtedness is paid in full, then such payment or distribution will
be held by the recipient in trust for the benefit of Holders of Senior
Indebtedness or their representative or representatives to the extent necessary
to make payment in full of all Senior Indebtedness remaining unpaid, after
giving effect to any concurrent payment or distribution, or provision therefor,
to or for the Holders of Senior Indebtedness.

     The Company is obligated to pay reasonable compensation to the Trustee and
to indemnify the Trustee against any losses, liabilities or expenses incurred by
it in connection with its duties relating to the Debentures. The Trustee's
claims for such payments will be senior to those of Holders of the Debentures in
respect of all funds collected or held by the Trustee.

COMPLIANCE CERTIFICATE

     The Indenture requires the Company to deliver to the Trustee, within 90
days after the end of each fiscal year, an Officers' Certificate as to the
signer's knowledge of the Company's compliance with all conditions and covenants
on its part contained in the Indenture and stating whether or not the signer
knows of any Default or Event of Default.  If such signer knows of such a
Default or Event of Default, the Officers' Certificate must describe the Default
or Event of Default and the efforts to remedy the same.  For the purposes of
this provision of the Indenture, compliance shall be determined without regard
to any grace period or requirement of notice provided pursuant to the terms of
the Indenture.

EVENTS OF DEFAULT AND REMEDIES

     The following are Events of Default under the Indenture: (i) default in the
payment of any principal, Original Issue Discount, Redemption Price, Purchase
Price, or Change in Control Purchase Price due with respect to the Debentures;
(ii) default by the Company or any subsidiary with respect to its obligation to
pay principal of or interest on indebtedness for borrowed money, which default
shall have resulted in the acceleration of indebtedness aggregating more than
$25 million; (iii) default by the Company with respect to indebtedness for
borrowed money, which default results in the acceleration of such indebtedness
in an amount exceeding $25 million, which indebtedness has not been discharged
or such acceleration has not been rescinded or annulled for a period of 10 days;
(iv) failure to perform any other covenant or warranty of the Company, continued
for 60 days after written notice as provided in the Indenture; (v) final
judgments or orders are rendered against the Company or any of its subsidiaries
which require the payment by the Company or any of its subsidiaries of an amount
(to the extent not covered by insurance) in excess of $25 million and such
judgments or orders remain unstayed or unsatisfied for more than 60 days and are
not being contested in good faith by appropriate proceedings; and (vi) certain
events of bankruptcy, insolvency or reorganization with respect to the Company.

     The Indenture provides that if an Event of Default shall have occurred and
be continuing, the Trustee or the Holders of not less than 25% in principal
amount of the Debentures then outstanding may declare the Issue Price plus
Original Issue Discount of the Debentures accrued to the date of declaration to
be due and payable immediately, but if the Company shall cure all defaults
(except the nonpayment 

                                       21
<PAGE>
 
of principal and accrued Original Issue Discount on any of the Debentures which
shall have become due by acceleration) and certain other conditions are met,
with certain exceptions, such declaration may be annulled and past defaults may
be waived by the Holders of a majority of the principal amount of the Debentures
then outstanding. In the case of certain events of bankruptcy or insolvency, the
Issue Price plus Original Issue Discount of the Debentures accrued to the date
of the occurrence of the bankruptcy or insolvency shall automatically become and
be immediately due and payable.

     The Indenture provides that the Trustee will within 90 days after a Trust
Officer (as defined in the Indenture) has knowledge of the occurrence of a
Default or any Event of Default, mail to all Holders, as the names and addresses
of such Holders appear upon the Debenture register, notice of all Defaults or
Events of Default known to a Trust Officer, unless such Default or Event of
Default is cured or waived before the giving of such notice and provided that,
except in the case of default in the payment of the Principal Amount, Issue
Price, accrued Original Issue Discount, accrued Liquidated Damages, if any,
Redemption Price, Purchase Price, Change in Control Purchase Price or interest,
if any, as the case may on any of the Debentures, the Trustee will be protected
in withholding such notice if and so long as a trust committee of directors
and/or officers of the Trustee in good faith determines that the withholding of
such notice is in the interest of the Holders.

     The Holders of a majority in principal amount of the Debentures then
outstanding shall have the right to direct the time, method and place of
conducting any proceedings for any remedy available to the Trustee, subject to
certain limitations specified in the Indenture.

MODIFICATIONS OF THE INDENTURE

     The Indenture contains provisions permitting the Company and the Trustee,
with the consent of the Holders of not less than a majority in principal amount
of the Debentures at the time outstanding, to modify the Indenture or any
supplemental indenture or the rights of the Holders of the Debentures, except
that no such modification shall (i) extend the fixed maturity of any Debenture,
reduce the principal amount at the Final Maturity Date, Issue Price, Purchase
Price, Change in Control Purchase Price, Redemption Price or amount of cash paid
in lieu of shares of Common Stock, change the obligation of the Company to
repurchase any Debenture upon the occurrence of any Change in Control in a
manner adverse to Holders of Debentures, impair the right of a Holder to
institute suit for the payment thereof, change the currency in which the
Debentures are payable, or impair the right to convert the Debentures into
Common Stock in any material respect, or modify the provisions of the Indenture
with respect to the subordination of the Debentures in a manner adverse to the
Holders of the Debentures in any material respect, without the consent of the
Holder of each Debenture so affected, or (ii) reduce the aforesaid percentage of
Debentures the Holders of which are required to consent to any such supplemental
indenture, without the consent of the Holders of all of the Debentures then
outstanding.

BOOK ENTRY, DELIVERY AND FORM

     The Debentures were issued in fully registered form, without coupons, in
denominations of $1,000 principal amount at final maturity and multiples
thereof.

     Global Debenture, Book-Entry Form.   Debentures held by qualified
institutional buyers, as defined in Rule 144A under the Securities Act ("QIBs"),
and Debentures held by institutional "accredited investors" as defined in Rule
501(a)(l), (2), (3) or (7) are evidenced by one or more global Debentures (the
"Global Debenture") which was deposited with, or on behalf of, DTC and
registered in the name of Cede & Co. ("Cede") as DTC's nominee. Except as set
forth below, record ownership of the Global 

                                       22
<PAGE>
 
Debenture may be transferred, in whole or in part, only to another nominee of
DTC or to a successor of DTC or its nominee.

     QIBs and institutional "accredited investors" may hold interests in the
Global Debenture directly through DTC, if such QIB or institutional "accredited
investor" is a participant in DTC, or indirectly through organizations which are
participants in DTC (the "Participants"). Transfers between Participants will be
effected in the ordinary way in accordance with DTC rules and will be settled in
same-day funds. The laws of some states require that certain persons take
physical delivery of securities in definitive form. Consequently, the ability to
transfer beneficial interest in the Global Debenture to such persons may be
limited.

     QIBs who are not Participants may beneficially own interests in the Global
Debenture held by DTC only through Participants, or certain banks, brokers,
dealers, trust companies and other parties that clear through or maintain a
custodial relationship with a Participant, either directly or indirectly
("Indirect Participants"). So long as Cede, as the nominee of DTC, is the
registered owner of the Global Debenture, Cede for all purposes will be
considered the sole Holder of the Global Debenture. Except as provided below,
owners of beneficial interests in the Global Debenture will not be entitled to
have certificates registered in their names, will not receive or be entitled to
receive physical delivery of certificates in definitive form and will not be
considered Holders thereof.

     Payment of the Redemption Price, Purchase Price, Change in Control Purchase
Price of or any other amounts with respect to the Global Debenture will be made
to Cede, the nominee of DTC, as the registered owner of the Global Debenture, by
wire transfer of immediately available funds on the applicable payment date
therefor. Neither the Company, the Trustee nor any paving agent will have any
responsibility or liability for any aspect of the records relating to or
payments made on account of beneficial ownership interests in the Global
Debenture or for maintaining, supervising or reviewing any records relating to
such beneficial ownership interests.

     The Company has been informed by DTC that, with respect to any payments in
connection with the Global Debenture, DTC's practice is to credit Participants'
accounts on the applicable payment date therefor with payments in amounts
proportionate to their respective beneficial interests in the Debentures
represented by the Global Debenture, as shown on the records of DTC (adjusted as
necessary so that such payments are made with respect to whole Debentures only),
unless DTC has reason to believe that it will not receive payment on such
payment date. Payments by Participants to owners of beneficial interests in
Debentures represented by the Global Debenture held through such Participants
will be the responsibility of such Participants, as is now the case with
securities held for the accounts of customers registered in "street name."

     Holders who desire to convert their Debentures into Common Stock pursuant
to the terms of the Debentures should contact their brokers or other
Participants or Indirect Participants to obtain information on procedures,
including proper forms and cut-off times, for submitting such requests.

     Because DTC can only act on behalf of Participants, who in turn act on
behalf of Indirect Participants and certain banks, the ability of a person
having a beneficial interest in Debentures represented by the Global Debenture
to pledge such interest to persons or entities that do not participate in the
DTC system, or otherwise, take actions in respect of such interest, may be
affected by the lack of a physical certificate evidencing such interest.

     Neither the Company nor the Trustee (or any registrar, paying agent or
conversion agent under the Indenture) has any responsibility for the performance
by DTC or its Participants or Indirect 

                                       23
<PAGE>
 
Participants of their respective obligations under the rules and procedures
governing their operations. DTC has advised the Company that it will take any
action permitted to be taken by a Holder of Debentures (including, without
limitation, the presentation of Debentures for exchange as described below),
only at the direction of one or more Participants to whose account DTC interests
in the Global Debenture are credited and only in respect of the principal amount
of the Debentures represented by the Global Debenture as to which such
Participant or Participants has or have given such direction.

     DTC has advised the Company as follows: DTC is a limited purpose trust
company organized under the laws of the State of New York, a "banking
organization" within the meaning of the New York Banking Law, a member of the
Federal Reserve System, a "clearing corporation" within the meaning of the New
York Uniform Commercial Code and a "clearing agency" registered pursuant to the
provisions of Section 17A of the Exchange Act. DTC holds securities for its
Participants. DTC also facilitates the clearance and settlement among
Participants of securities transactions, such as transfers and pledges, in
deposited securities through electronic book-entry changes to accounts of its
Participants, thereby eliminating the need for physical movement of
certificates. Participants include securities brokers and dealers, banks, trust
companies and clearing corporations and may include certain other organizations
such as the Initial Purchasers. Certain of such Participants (or their
representatives), together with other entities, own DTC. Indirect access to the
DTC system is available to others such as banks, brokers, dealers and trust
companies that clear through, or maintain a custodial relationship, with, a
Participant, either directly or indirectly. The rules applicable to DTC and its
Participants are on file with the Commission.

     Although DTC has agreed to the foregoing procedures in order to facilitate
transfers of interests in the Global Debenture among Participants of DTC, DTC is
under no obligation to perform or continue to perform such procedures, and such
procedures may be discontinued at any time. If DTC is at any time unwilling or
unable to continue as depository and a successor depository is not appointed by
the Company within 90 days, the Company will cause Debentures to be issued in
definitive form in exchange for the Global Debenture. None of the Company, the
Trustee nor any of their respective agents will have any responsibility for the
performance by DTC, their Participants or Indirect Participants of their
respective obligations under the rules and procedures governing their
operations, including maintaining, supervising or reviewing the records relating
to, or payments made on account of, beneficial ownership interests in Global
Debentures.

     Certificated Debentures.   Subject to certain conditions, any person having
a beneficial interest in the Global Debenture may, upon request to the Trustee,
exchange such beneficial interest for Debentures in certificated form
("Certificated Debentures"). Upon any such issuance, the Trustee is required to
register such Certificated Debentures in the name of, and cause the same to be
delivered to, such person or persons (or the nominee of any thereof). All such
certificated Debentures would be subject to the legend requirements described
herein under "Transfer Restrictions." Certificated Debentures may be issued in
exchange for Debentures represented by the Global Debenture if no successor
depository is appointed by the Company as set forth above under "CGlobal
Debenture, Book Entry Form."

     Restrictions on Transfer; Legends.   The Debentures are subject to certain
transfer restrictions as described below under "Transfer Restrictions" and
certificates evidencing the Debentures will bear a legend to such effect.

                                       24
<PAGE>
 
REGISTRATION RIGHTS

     Pursuant to the Registration Rights Agreement, the Company has agreed to
use all reasonable efforts to keep the Registration Statement effective for two
years after the latest date of initial issuance of Debentures. The Company is
permitted to suspend the use of this Prospectus during certain periods of time
and under certain circumstances relating to pending corporate developments,
public filings with the Commission and similar events. If the Prospectus is
unavailable for periods in excess of those permitted under the Registration
Rights Agreement, the Company has agreed to pay liquidated damages to (i) each
Holder of Debentures at a rate equal to one-half of one percent per annum (50
basis points) on the aggregate principal amount of the Debentures and (ii) each
Holder of shares of Common Stock issued upon conversion of the Debentures at a
rate equal to one-half of one percent per annum (50 basis points) calculated on
the product of (a) the (i) the sum of the Issue Price plus Original Issue
Discount accrued to such Trading Day, by (ii) the Conversion Rate, times (b) the
number of shares of such Common Stock held by such Holder. The Company will pay
all expenses of the shelf registration statement, provide to each registered
Holder requesting to sell Debentures or shares of Common Stock copies of such
prospectus, notify each registered Holder when the shelf registration statement
has become effective and take certain other actions as are required to permit,
subject to the foregoing, unrestricted resales of the securities.

CONCERNING THE TRUSTEE

     Chase Bank of Texas, National Association, the Trustee under the Indenture,
has been appointed by the Company as the initial paying agent, conversion agent,
registrar and custodian with regard to the Debentures. The Company may maintain
deposit accounts and conduct other banking transactions with the Trustee or its
affiliates in the ordinary course of business, and the Trustee and its
affiliates may from time to time in the future provide banking and other
services to the Company in the ordinary course of their business. At present,
the Trustee is a lender and the agent for the other lenders under the Company's
line of credit.

DISCHARGE OF THE INDENTURE

     The Company may satisfy and discharge its obligations under the Indenture
by delivering to the Trustee for cancellation all outstanding Debentures or by
depositing with the Trustee, after all outstanding Debentures have become due
and payable (or are by their terms to become due and payable within one year or
are to be cancelled upon redemption within one year), whether at stated
maturity, or any Redemption Date, or a Change of Control Purchase Date, or upon
conversion or otherwise, cash sufficient to pay all of the outstanding
Debentures and paying all other sums payable under the Indenture by the Company.
Upon the deposit of such funds with the Trustee, then the Indenture will cease
to be of further effect (except as to (i) remaining rights of registration of
transfer, substitution and exchange and conversion of Debentures, (ii) rights of
Holders under the Indenture to receive payments of the Principal Amount,
including Original Issue Discount due with respect to the Debentures and the
other rights, duties and obligations of Holders, as beneficiaries with respect
to the amounts, if any, so deposited with the Trustee and (iii) the rights,
obligations and immunities of the Trustee under the Indenture).

                                       25
<PAGE>
 
                         DESCRIPTION OF CAPITAL STOCK

     The Company is authorized to issue 100,000,000 shares of Common Stock, no
par value, of which approximately 26,219,605 shares were outstanding as of April
24, 1998 and 5,000,000 shares of Preferred Stock, $.01 par value ("Preferred
Stock"), none of which are outstanding.

     Holders of Common Stock are entitled to one vote per share on any matter
submitted to the vote of shareholders, and cumulative voting is prohibited in
the election of directors. Subject to preferences that may be applicable to any
outstanding Preferred Stock, the holders of Common Stock are entitled to receive
ratably such dividends, if any, as may be declared from time to time by the
Board of Directors out of funds legally available therefor. The Common Stock is
non-assessable, not redeemable, does not have any conversion rights and is not
subject to call. Holders of shares of Common Stock have no preemptive rights to
maintain their respective percentage of ownership in future offerings or sales
of stock by the Company.

     The Company may issue Preferred Stock in one or more series and the Board
of Directors may designate the dividend rate, voting rights and other rights,
preferences and restrictions of each series. It is not possible to state the
actual effect of the issuance of any shares of Preferred Stock upon the rights
of holders of the Common Stock until the Board of Directors of the Company
determines the specific rights of holders of such Preferred Stock. However, such
effects might include, among other things, restricting dividends on the Common
Stock, diluting the voting power of the Common Stock, impairing the liquidation
rights of the Common Stock and delaying or preventing a change in control of the
Company without further action by the shareholders.

     The Transfer Agent and Registrar for the Common Stock is Securities
Transfer Corp., Dallas, Texas.

                   CERTAIN FEDERAL INCOME TAX CONSIDERATIONS

     The following is a general discussion of certain material U.S. federal
income tax considerations relating to the purchase, ownership and disposition of
the Debentures and Common Stock to U.S. Holders (as defined below), but does not
purport to be a complete analysis of all the potential tax considerations
relating thereto. This discussion is based upon the Internal Revenue Code of
1986, as amended (the "Code"), existing and proposed Treasury Regulations, and
judicial decisions and administrative interpretations thereunder, as of the date
hereof, all of which are subject to change, possibly with retroactive effect, or
different interpretations. There can be no assurance that the Internal Revenue
Service (the "IRS") will not challenge one or more of the tax consequences
described herein.

     The Company has been advised by its counsel that, based on current laws,
regulations and administrative and judicial standards, all of which are subject
to change, the Debentures will be treated as indebtedness for United States
federal income tax purposes.

     This discussion does not purport to address all tax consequences that may
be important to a particular Holder in light of the Holder's circumstances (such
as the alternative minimum tax provisions of the Code), or to certain categories
of investors (such as certain financial institutions, insurance companies, tax-
exempt organizations, dealers in securities, or persons who hold Debentures or
Common Stock as part of a hedge, conversion or constructive sale transaction,
straddle or other risk reduction transaction) that may be subject to special
rules. In addition, the following does not address the tax consequences to a
Holder that is not a "U.S. Holder." As used herein, the term "U.S. Holder" means

                                       26
<PAGE>
 
a Holder of a Debenture or Common Stock that is (i) for United States federal
income tax purposes, a citizen or resident of the United States, (ii) a
corporation, partnership or other entity created or organized in or under the
laws of the United States or of any political subdivision thereof, (iii) an
estate, the income of which is subject to United States federal income taxation
regardless of its source, or (iv) a trust, the administration of which is
subject to the primary supervision of a court within the United States and which
has one or more United States persons with authority to control all substantial
decisions. This discussion is limited to Holders of Debentures who hold the
Debentures and any Common Stock into which the Debentures are converted as
capital assets. This discussion also does not address the tax consequences
arising under the laws of any foreign, state or local jurisdiction.

     PERSONS CONSIDERING THE PURCHASE OF A DEBENTURE SHOULD CONSULT THEIR OWN
TAX ADVISORS AS TO THE PARTICULAR TAX CONSEQUENCES TO THEM OF ACQUIRING,
HOLDING, CONVERTING OR OTHERWISE DISPOSING OF THE DEBENTURES AND COMMON STOCK,
INCLUDING THE EFFECT AND APPLICABILITY OF STATE, LOCAL OR FOREIGN TAX LAWS.

ORIGINAL ISSUE DISCOUNT ON THE DEBENTURES

     The Debentures were issued at a substantial discount from their stated
redemption price at maturity. For federal income tax purposes, the excess of the
stated redemption price at maturity of each Debenture over its issue price
constitutes original issue discount ("Original Issue Discount"). The issue price
of the Debentures will equal the initial price at which a substantial amount of
the Debentures is sold (not including sales to underwriters or placement agents,
including the Initial Purchasers). U.S. Holders of the Debentures will be
required to include Original Issue Discount in income as it accrues, in
accordance with the constant yield method described below, before receipt of the
cash attributable to such income, regardless of such U.S. Holder's regular
method of accounting for United States federal income tax purposes. A U.S.
Holder of a Debenture must include in gross income for federal income tax
purposes the sum of the daily portions of Original Issue Discount with respect
to the Debenture for each day during the taxable year or portion of a taxable
year on which such U.S. Holder holds the Debenture. The daily portion is
determined by allocating to each day of each accrual period a pro rata portion
of an amount equal to the adjusted issue price of the Debenture at the beginning
of the accrual period multiplied by the yield to maturity of the Debenture
(determined by compounding at the close of each accrual period and adjusted for
the length of the accrual period). The adjusted issue price of a Debenture at
the start of any accrual period will be the issue price of the Debenture
increased by the accrued Original Issue Discount for each prior accrual period.
Under these rules, U.S. Holders will have to include in gross income
increasingly greater amounts of Original Issue Discount in each successive
accrual period. A U.S. Holder's original tax basis for determining gain or loss
on the sale or other disposition of a Debenture will be increased by any accrued
Original Issue Discount includable in such U.S. Holder's gross income.

     There are several circumstances under which the Company could make a
payment on a Debenture which would affect the yield to maturity of a Debenture,
including (as described under "Description of Debentures") the payment of
liquidated damages due to the failure to timely file a registration statement
with respect to the Debentures and the Common Stock issuable upon conversion
thereof, effect the Exchange Offer, or the redemption or repurchase of
Debentures. According to Treasury Regulations, the possibility of a change in
the yield will not be treated as affecting the amount of Original Issue Discount
required to be realized by a Holder (or the timing of such recognition) if the
likelihood of the change, as of the date the debt obligations are issued, is
remote. The Company intends to report on the basis that the likelihood of any
change in the yield on the Debentures is remote. The Company also intends to
report on the basis that there is no alternative payment schedule that would
minimize the yield on the Debentures to the Company.

                                       27
<PAGE>
 
MARKET DISCOUNT

     Any principal payment or gain realized by a U.S. Holder on disposition or
retirement of a Debenture will be treated as ordinary income to the extent that
there is accrued market discount on the Debenture. The amount of market discount
on a Debenture for a Holder will equal the excess of the adjusted issue price of
such Debenture over the initial tax basis of such Debentures in the hands of
such Holder. To the extent a Holder exchanges or converts a Debenture into
Common Stock in a transaction that is otherwise tax free, any accrued market
discount will carry over and generally be recognized upon a disposition of the
Common Stock. Unless a U.S. Holder irrevocably elects to accrue market discount
under a constant-interest method, accrued market discount is the total market
discount multiplied by a fraction, the numerator of which is the number of days
the U.S. Holder has held the obligation and the denominator of which is the
number of days from the date the Holder acquired the obligation until its
maturity. A U.S. Holder may be required to defer a portion of its interest
deductions for the taxable year attributable to any indebtedness incurred or
continued to purchase or carry a Debenture purchased with market discount. Any
such deferred interest expense would not exceed the market discount that accrues
during such taxable year and is, in general, allowed as a deduction not later
than the year in which such market discount is includable in income. If the
Holder elects to include market discount in income currently as it accrues on
all market discount instruments acquired by the U.S. Holder in that taxable year
or thereafter, the (i) interest deferral described above will not apply and (ii)
market discount will not carry over into Common Stock as described above. Any
such election is terminable only with the consent of the IRS and applies to all
market discount bonds acquired during or after the year for which it is made.

ACQUISITION PREMIUM

     A U.S. Holder will be considered to have "acquisition premium" to the
extent the U.S. Holder's initial tax basis in a Debenture is greater than (x)
the adjusted issue price of such Debenture but less than (y) the stated
redemption price at maturity of such Debenture. Acquisition premium may offset
the amount of Original Issue Discount received on such Debenture that the U.S.
Holder is required to include in income.

SALE, EXCHANGE OR RETIREMENT OF THE DEBENTURES

     Upon the sale, exchange or retirement of a Debenture, including as a result
of a tender upon the occurrence of a Change in Control, and, except as discussed
in the next paragraph on a Purchase Date, a Holder will recognize gain or loss
equal to the difference between the sale or redemption proceeds and the U.S.
Holder's adjusted tax basis in the Debenture.

     If a U.S. Holder elects to exercise its option to tender the Debentures to
the Company on a Purchase Date and the Company issues Common Stock in
satisfaction of all or part of the Purchase Price, the exchange of the
Debentures for Common Stock should qualify as a reorganization for federal
income tax purposes. If the Purchase Price is paid solely in Common Stock,
except in the case of a fractional share described below, a U.S. Holder will not
be required to recognize any gain realized and will not be permitted to
recognize any loss. If the Purchase Price is paid in a combination of Common
Stock and cash (other than cash received in lieu of a fractional share), gain
(but not loss) realized by the U.S. Holder would be recognized, but only to the
extent of the cash received. A U.S. Holder's initial tax basis in the Common
Stock received would be equal to such U.S. Holder's adjusted tax basis in the
Debenture tendered (except for any portion allocable to a fractional share of
Common Stock), increased by the amount of gain recognized (other than with
respect to a fractional share) and decreased by the amount of any cash received
(except cash received in lieu of a fractional share). The holding period for

                                       28
<PAGE>
 
Common Stock received in the exchange will include the holding period of the
Debenture tendered to the Company in exchange therefor. The receipt of cash in
lieu of a fractional share of Common Stock should generally result in capital
gain or loss, measured by the difference between the amount of cash received for
the fractional share and the U.S. Holder's tax basis in the fractional share
interest.

     A Holder's adjusted tax basis in a Debenture will generally equal the
Holder's cost of the Debenture increased by any Original Issue Discount
previously included in income by such Holder with respect to such Debenture and
decreased by any payments received thereon. Except to the extent of any accrued
market discount, gain or loss realized on the sale, exchange or retirement of a
Debenture will generally be capital gain or loss and will be long-term capital
gain or loss if the Debenture is held for more than one year. For individual
U.S. Holders, the maximum rate of United States federal income tax generally is
28% if the Debenture disposed of is held for more than one year but not more
than 18 months, and the maximum rate is 20% if the Debenture disposed of is held
more than 18 months.

CONVERSION OF DEBENTURES

     A U.S. Holder's conversion of a Debenture into Common Stock will generally
not be a taxable event (except with respect to cash received in lieu of a
fractional share). A U.S. Holder's basis in the Common Stock received on
conversion of a Debenture will be the same as the U.S. Holder's basis in the
Debenture at the time of conversion, including accrued Original Issue Discount
(exclusive of any tax basis allocable to a fractional share), and the holding
period for the Common Stock received on conversion will include the holding
period of the Debenture converted. The receipt of cash in lieu of fractional
Common Stock should generally result in capital gain or loss (measured by the
difference between the cash received for the fractional share interest and the
U.S. Holder's tax basis in the fractional share interest).

DIVIDENDS; ADJUSTMENT OF CONVERSION RATE

     Dividends, if any, paid on the Common Stock generally will be includable in
the income of a U.S. Holder as ordinary income to the extent of the Company's
current or accumulated earnings and profits.

     If at any time the Company makes a distribution of property to shareholders
that would be taxable to such shareholders as a dividend for federal income tax
purposes (for example, distributions of indebtedness or assets of the Company,
but generally not stock dividends or rights to subscribe for Common Stock) and,
pursuant to the anti-dilution provisions of the Indenture, the Conversion Rate
of the Debentures is increased, such increase may be deemed to be the payment of
a taxable dividend to U.S. Holders of Debentures. If the Conversion Rate is
increased at the discretion of the Company or in certain other circumstances,
such increase also may be deemed to be the payment of a taxable dividend to U.S.
Holders of Debentures.

SALE OF COMMON STOCK

     Upon the sale or exchange of Common Stock, U.S. Holders generally will
recognize capital gain (except to the extent of any accrued market discount not
previously included in income) or capital loss equal to the difference between
the amount realized on such sale or exchange and the Holder's adjusted tax basis
in such shares. For individual U.S. Holders, the maximum rate of United States
federal income tax generally is 28% if the Common Stock disposed of is held for
more than one year but not more than 18 months, and the maximum rate is 20% if
the Common Stock disposed of is held more than 18 months.

                                       29
<PAGE>
 
BACKUP WITHHOLDING AND INFORMATION REPORTING

     Information reporting will apply to payments of interest or dividends on or
the proceeds of the sale or other disposition of the Debentures or shares of
Common Stock made by the Company with respect to certain U.S. Holders, and
backup withholding at a rate of 31% may apply unless the recipient of such
payment supplies a taxpayer identification number, certified under penalties of
perjury, as well as certain other information or otherwise establishes an
exemption from backup withholding. Any amount withheld under the backup
withholding rules is allowable as a credit against the U.S. Holder's federal
income tax, provided that the required information is timely filed with the IRS.

                                       30
<PAGE>
 
                                SELLING HOLDERS
    
     The Debentures were originally issued by the Company and resold by BT Alex.
Brown Incorporated and Morgan Stanley & Co. Incorporated (the "Initial
Purchasers"), in transactions exempt from the registration requirements of the
Securities Act, to persons reasonably believed by the Initial Purchasers to be
"qualified institutional buyers" (as defined in Rule 144A under the Securities
Act ("QIBs") in compliance with Rule 144A under the Securities Act. Such persons
constitute "Selling Holders."  The Selling Holders (which term includes their
transferees, pledgees, donees or their successors) may from time to time offer
and sell pursuant to this Prospectus any or all of the Debentures and Common
Stock issued upon conversion of the Debentures.      

     The following table sets forth information with respect to the Selling
Holders and the respective principal amounts of Debentures and shares of Common
Stock beneficially owned by each Selling Holder.  Such information has been
obtained from the Selling Holders.  Except as otherwise disclosed herein, none
of the Selling Holders has, or within the past three years has had, any position
office or other material relationship with the Company or any of its
predecessors or affiliates.  Because the Selling Holders may offer all or some
portion of the Debentures or the Common Stock issuable upon conversion thereof
pursuant to this Prospectus, no estimate can be given as to the amount of the
Debentures or the Common Stock issuable upon conversion thereof that will be
held by the Selling Holders upon termination at any such sales.  In addition,
the Selling Holders identified below may have sold, transferred or otherwise
disposed of all or a portion of their Debentures, since the date on which they
provided the information regarding their Debentures, in transactions exempt from
the registration requirements of the Securities Act.


<TABLE>     
<CAPTION>
 
                                       Principal Amount of       
                                  Debentures Beneficially Owned     Number of Shares of Common
      Selling Holder             and That May Be Offered Hereby    Stock Beneficially Owned (1)
- -------------------------------  -------------------------------  -------------------------------
<S>                              <C>                              <C>  
Alexandra Global investment               $ 9,200,000                          ---
  Fund 1, Ltd.                            
Associated Electric & Gas                     600,000                          ---
  Insurance Services Limited               
Baptist Health                                282,000                          ---
Boston Museum of Fine Art                     141,000                          ---
BS Debt Income Fund - Class A                  40,000                          ---
BT Alex. Brown                             27,072,000                          ---
CALAMOS Convertible Fund                    7,805,000                          ---
CALAMOS Global Growth and                     490,000                          ---
 Income Fund              
CALAMOS Growth and Income Fund              1,360,000                          ---
Carrigaholt Capital (Bermuda) L.P.          4,250,000                          ---
CFW-C, L.P.                                10,000,000                          ---
Champion International Corporation          6,685,000                          ---
 Master Retirement Trust
Class IC Company, Ltd., The                 4,250,000                          ---
Delaware Group Premium Fund, Inc.             300,000                          ---
Delta Airlines Master Trust                11,400,000                          ---
Deutsche Bank AG                           21,250,000                          ---
Dorinco Reinsurance Company                 2,800,000                          ---
Dow Chemical Company Employees'            11,490,000                          ---
 Retirement Plan
Dunham & Assoc. Fund III                       53,000                          ---
Dunham & Assoc. Fund II                        99,000                          ---
Engineers Joint Pension Fund                  518,000                          ---
Fondren Foundation, The                       470,000                          ---
Genesee County Employees'                   1,200,000                          ---
 Retirement System
GPZ Trading LLC                             2,000,000                          ---
Hamilton Global Investors Limited          29,500,000                          ---
Hamilton Partners Limited                     500,000                          ---
HBK Finance, L.P.                           3,410,000                          ---
HBK Securities Ltd.                         6,530,000                          ---
Highbridge Capital Corporation             11,000,000                          ---
Kettering Medical Center Funded               535,000                          ---
 Depreciation Account
McMahan Securities Company, L.P.              200,000                          ---
Nicholas Applegate Income & Growth          4,935,000                          ---
 Fund
Paloma Securities L.L.C.                    8,400,000                          ---
Port Authority of Allegheny County          8,150,000                          ---
 Retirement and Disability Allowance
 Plan for the Employees Represented
 by Local 85 of the Amalgamated
 Transit Union
R/2/ Investments, LDC                       4,850,000                          ---
Raytheon Company Master Pension Trust       2,500,000                          ---
RJR Nabisco, Inc. Defined Benefit           5,205,000                          ---
 Master Trust
San Diego City Retirement                   1,395,000                          ---
San Diego County Convertibles               4,273,000                          ---
SBC Warburg Dillon Reed                       800,000                          ---
Silverton International Fund Limited        5,200,000                          ---
Southern Farm Bureau Life Insurance         4,000,000                          ---
 Company                                   
SPT                                         4,300,000                          ---
TQA Leverage Fund, L.P.                     1,000,000                          ---
TQA Vantage Fund, Ltd.                      2,000,000                          ---
TQA Vantage Plus Ltd.                       1,000,000                          ---
UBS Asset Management (New York)             6,000,000                          ---
Unifi, Inc. Profit Sharing Plan             1,080,000                          ---
 and Trust
Univar Corporation                          2,150,000                          ---
Van Kampen American Capital                16,019,009                          ---
 Harbor Fund(2)
Van Kampen American Capital                 2,781,000                          ---
 Convertible Securities Fund(2)
Wake Forest University                      1,104,000                          ---
</TABLE>      
____________________
(1)  Does not include shares of Common Stock issuable upon conversion of
     Debentures.
    
(2)  Van Kampen American Capital Asset Management (the "Advisor") acts as
     investment advisor or sub-advisor to the funds indicated. The Advisor has
     discretionary authority to make investment decisions with respect to the
     portfolios of the funds. In addition, the security holder is an affiliate
     of Morgan Stanley & Co. Incorporated, an Initial Purchaser.     

                             PLAN OF DISTRIBUTION

    The Debentures and Common Stock issued upon conversion thereof may be
offered for sale and sold by the several Selling Holders in one or more
transactions, including block transactions, at a fixed price or prices (which
may be changed), at market prices prevailing at the time of sale, at prices
related to such prevailing market prices or at prices determined on a negotiated
or competitive bid basis.  Debentures and Common Stock issued upon conversion
thereof may be sold by a Selling Holder directly, through agents designated from
time to time or to or through broker-dealers designated from time to time, or by
such other means as may be specified in the applicable Prospectus Supplement.

                                       31
<PAGE>
 
    Debentures and Common Stock issued upon conversion thereof may be sold
through a broker-dealer acting as agent or broker for the Selling Holders or to
a broker-dealer acting as principal.  In the latter case, the broker-dealer may
then resell such Debentures or Common Stock to the public at varying prices to
be determined by such broker-dealer at the time of resale.

    The Selling Holders and any agents or broker-dealers that participate with
the Selling Holders in the distribution of any of the Debentures or Common Stock
issued upon conversion thereof may be deemed to be "underwriters" within the
meaning of the Securities Act, and any discount or commission received by them
and any profit on the resale of the Debentures or Common Stock issued upon
conversion thereof purchased by them may be deemed to be underwriting discounts
or commissions under the Securities Act.

    To the extent required, the number of Debentures or Common Stock issued upon
conversion thereof to be sold, certain information relating to the Selling
Holders, the purchase price, the public offering price, if applicable, the name
of any underwriter, agent or broker-dealer, and any applicable commissions,
discounts or other items constituting compensation to such underwriters, agents
or broker-dealers with respect to a particular offering will be set in an
accompanying Prospectus Supplement.

                                 LEGAL MATTERS

     The validity of the Debentures and the shares of Common Stock issuable upon
the conversion thereof was passed upon for the Company by Crouch & Hallett,
L.L.P., Dallas, Texas.

                                    EXPERTS

     The consolidated financial statements of the Company as of September 28,
1997 and September 29, 1996 and for each of the fiscal years in the three-year
period ended September 28, 1997, have been incorporated by reference herein in
reliance upon the report of KPMG Peat Marwick LLP, independent certified public
accountants, incorporated by reference herein, and upon the authority of said
firm as experts in accounting and auditing.  To the extent that KPMG Peat
Marwick LLP audits and reports upon consolidated financial statements of the
Company issued at future dates, and consents to the use of their report thereon,
such financial statements also will be incorporated by reference herein in
reliance upon their reports and said authority.

                                       32
<PAGE>
 
================================================================================

     NO PERSON HAS BEEN AUTHORIZED IN CONNECTION WITH THE OFFERING MADE HEREBY
TO GIVE ANY INFORMATION OR MAKE ANY REPRESENTATION OTHER THAN AS CONTAINED OR
INCORPORATED BY REFERENCE IN THIS PROSPECTUS, AND, IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
BY THE COMPANY, THE SELLING HOLDERS OR ANY OF THEIR RESPECTIVE AFFILIATES. THIS
PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL, OR A SOLICITATION OF AN OFFER
TO BUY, ANY OF THE SECURITIES OFFERED HEREBY BY ANY PERSON IN ANY JURISDICTION
IN WHICH OR TO ANY PERSON TO WHOM IT IS UNLAWFUL TO MAKE SUCH AN OFFERING OR
SOLICITATION. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE
HEREUNDER SHALL UNDER ANY CIRCUMSTANCES, IMPLY THAT THE INFORMATION CONTAINED IN
THIS PROSPECTUS OR ANY DOCUMENT INCORPORATED BY REFERENCE HEREIN IS CORRECT AS
OF ANY DATE SUBSEQUENT TO THE DATE HEREOF OR THEREOF.
 
                       ------------------------------- 
 
 
                               TABLE OF CONTENTS
 
                                                        PAGE
                                                        ----
Available Information....................................  2
Documents Incorporated by Reference......................  2
The Company..............................................  3
Risk Factors.............................................  3
Use of Proceeds..........................................  8
Ratio of Earnings to Fixed Charges.......................  9
Description of Debentures................................ 10
Description of Capital Stock............................. 26
Certain Federal Income Tax Considerations................ 26
Selling Holders.......................................... 31
Plan of Distribution..................................... 31
Legal Matters............................................ 32
Experts.................................................. 32
 
================================================================================

================================================================================
 
                                 $308,807,000

                  [LOGO OF WHOLE FOODS MARKET APPEARS HERE] 
 
                           Zero Coupon Convertible 
                            Subordinated debentures
                                   Due 2018 

                                --------------
                                  PROSPECTUS
                                --------------
    
                                 May   , 1998      

================================================================================
<PAGE>
 
                                    PART II
                    INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14.  Other Expenses of Issuance and Distribution.

  The following expenses will be paid by the Company:


 
Item                                                            Amount (1)
- ----                                                            ----------
SEC registration fee                                              $34,211

Nasdaq listing fee                                                 17,500

Legal fees and expenses                                            15,000

Accounting fees                                                     7,500

Trustee's fees and expenses                                        10,000

Miscellaneous                                                      15,789
                                                                ----------
Total                                                            $100,000

________
(1)  All items other than SEC registration fee are estimated

Item 15.  Indemnification of Directors and Officers.

  Article 2.02-1 of the Texas Business Corporation Act provides for
indemnification of directors and officers in certain circumstances.  Reference
is made to Article VII of the Bylaws of the registrant filed as an exhibit
hereto.

  The Company's Restated Articles of Incorporation provide that no director
shall be liable to the registrant or its shareholders for an act or omission in
such capacity as a director, except for liability as a result of (i) a breach of
the director's duty of loyalty to the registrant or its shareholders, (ii) an
act or omission not in good faith or which involve intentional misconduct or
knowing violation of law, (iii) an transaction from which such director derived
an improper personal benefit, (iv) an act or omission for which the liability of
a director is expressly provided by law or (v) an act related to an unlawful
stock repurchase of payment of a dividend.

  An insurance policy obtained by the registrant provides for indemnification of
officers and directors of the registrant and certain other persons against
liabilities and expenses incurred by any of them in certain stated proceedings
and under certain stated conditions.

Item 16.  Exhibits.


     Exhibit No.                                Description
    
        4.1            Form of Zero Coupon Convertible Subordinated Debenture
                       Due 2018. (1) 

        4.2            Indenture between the Company and Chase Bank of Texas,
                       National Association, as Trustee. (1) 
 
        4.3            Registration Rights Agreement by and among the Company
                       and BT Alex Brown Incorporated and Morgan Stanley & Co.
                       Incorporated. (1)

        5.1            Opinion of Crouch & Hallett, L.L.P. regarding the
                       legality of securities being registered. (1)
 
        8.1            Opinion of Crouch & Hallett, L.L.P. regarding certain tax
                       matters. (1)      

                                      II-1
<PAGE>
 
     
       12              Computation of Ratio of Earnings to Fixed Charges. (1)

       23.1            Consent of KPMG Peat Marwick LLP, Independent 
                       Auditors. (1)
 
       23.2            Consent of Crouch & Hallett, L.L.P. (included in Exhibit
                       5 to this Registration Statement). (1)
 
       24              Powers of Attorney (included on pages II-3 and II-4 of
                       this Registration Statement). (1)

       25              Statement of Eligibility of Trustee on Form T-1. (1)     
    
- ---------------------------
      (1) Previously filed.      

Item 17.  Undertakings.
 
     (a) Rule 415 Offering

            The registrant hereby undertakes (1) to file, during any period in
     which offers or sales are being made of the Shares registered hereby, a
     post-effective amendment to this Registration Statement to include any
     material information with respect to the plan of distribution not
     previously disclosed in this Registration Statement or any material change
     to such information in this Registration Statement; (2) that, for the
     purpose of determining any liability under the Securities Act of 1933, each
     such post-effective amendment shall be deemed to be a new Registration
     Statement relating to the securities offered herein, and the offering of
     such securities at that time shall be deemed to be the initial bona fide
     offering thereof; and (3) to remove from registration by means of a post-
     effective amendment any of the securities being registered which remain
     unsold at the termination of the offering.

     (b) Filings Incorporating Subsequent Exchange Act Documents by Reference

         The registrant hereby undertakes that, for purposes of determining
     any liability under the Securities Act of 1933, each filing of the
     Company's annual report pursuant to section 13(a) or section 15(d) of the
     Securities Exchange Act of 1934 (and, where applicable, each filing of an
     employee benefit plan's annual report pursuant to section 15(d) of the
     Securities Exchange Act of 1934) that is incorporated by reference in the
     Registration Statement shall be deemed to be a new Registration Statement
     relating to the securities offered herein, and the offering of such
     securities at that time shall be deemed to be the initial bona fide
     offering thereof.

     (c) Indemnification for Liability under the Securities Act of 1933

         Insofar as indemnification for liabilities arising under the
     Securities Act of 1933 may be permitted to directors, officers and
     controlling persons of the registrant pursuant to the foregoing provisions
     or otherwise, the registrant has been advised that in the opinion of the
     Securities and Exchange Commission such indemnification is against public
     policy as expressed in the Act and is, therefore, unenforceable.  In the
     event that a claim for indemnification against such liabilities (other than
     the payment by the registrant of expenses incurred or paid by a director,
     officer, or controlling person of the registrant in the successful defense
     of any action, suit, or proceeding) is asserted by such director, officer,
     or controlling person in connection with the securities being registered,
     the registrant will, unless in the opinion of its counsel the matter has
     been settled by controlling precedent, submit to a court of appropriate
     jurisdiction the question whether such indemnification by it is against
     public policy as expressed in the Act and will be governed by the final
     adjudication of such issue.

                                      II-2
<PAGE>
 
                                  SIGNATURES
    
     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized in the City of Austin and State of Texas on the 21st day of May,
1998.      

                                   WHOLE FOODS MARKET, INC.


                                   By /s/ Glenda Flanagan
                                     -------------------------------------------
                                          Glenda Flanagan, Vice President and
                                          Chief Financial Officer

                               POWER OF ATTORNEY

     Each of the undersigned hereby appoints John Mackey and Glenda Flanagan,
and each of them (with full power to act alone), as attorneys and agents for the
undersigned, with full power of substitution, for and in the name, place and
stead of the undersigned, to sign and file with the Securities and Exchange
Commission under the Securities Act of 1933 as amended any and all amendments
and exhibits to this Registration Statement and any and all applications,
instruments and other documents to be filed with the Securities and Exchange
Commission pertaining to the registration of the securities covered hereby, with
full power and authority to do and perform any and all acts and things
whatsoever requisite or desirable.
    
     Pursuant to the requirements of the Securities Act of 1933, as amended,
this registration statement has been signed below by the following persons in
the capacities and on May 21, 1998.      

Signature                       Title
- ---------                       -----


/s/ John Mackey                 Chairman of the Board        
- ------------------------------  and Director                  
John Mackey                     (Principal Executive Officer) 
                                                              
 
 
/s/ Glenda Flanagan             Vice President and Chief Financial Officer 
- ------------------------------  (Principal Financial Officer and Accounting 
Glenda Flanagan                 Officer)                                    
                                                                            
    
             *                  Director
- ------------------------------
Dr. Cristina G. Banks      
 
    
             *                  Director
- ------------------------------
David W. Dupree      
 

                                      II-3
<PAGE>
 

- ------------------------------  Director
Dr. John B. Elstrott
 
     
/s/         *                   Director
- ------------------------------
Avram J. Goldberg      
 
     
/s/         *                   Director
- ------------------------------
Fred "Chico" Lager     
 
 
- ------------------------------  Director
Linda A. Mason

    
/s/         *                   Director
- ------------------------------
Dr. Ralph Z. Sorenson      

    
*  By /s/ GLENDA FLANAGAN
      ------------------------
      Attorney-in-fact      

                                      II-4


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