WIND RIVER SYSTEMS INC
424A, 1996-06-20
PREPACKAGED SOFTWARE
Previous: SUNSHINE MINING & REFINING CO, DEF 14A, 1996-06-20
Next: TOYOTA MOTOR CREDIT CORP, 424B3, 1996-06-20



<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.
<PAGE>
   
  SUBJECT TO COMPLETION, DATED JUNE 19, 1996
    
 
               [LOGO]
 3,300,000 SHARES
 COMMON STOCK
 
  Of the 3,300,000  shares of  Common Stock,  $.001 par  value, offered  hereby,
  2,475,000  shares are being offered initially  in the United States (the "U.S.
  Offering") by  the U.S.  Underwriters  and 825,000  shares are  being  offered
  initially  outside  the  United  States  (the  "International  Offering,"  and
  together  with  the  U.S.  Offering,  the  "Offering")  by  the  International
  Underwriters  (together with  the U.S. Underwriters,  the "Underwriters"). See
  "Underwriting." Of the shares offered hereby, 1,650,000 shares are being  sold
  by  Wind River  Systems, Inc. ("Wind  River" or the  "Company"), and 1,650,000
  shares are being  sold by certain  stockholders of the  Company (the  "Selling
  Stockholders"). The Company will not receive any of the proceeds from the sale
  of   shares  by   the  Selling   Stockholders.  See   "Principal  and  Selling
  Stockholders."
 
   
  The Company's Common Stock is traded  on the Nasdaq National Market under  the
  symbol  "WIND."  On  June 18,  1996,  the  last reported  sales  price  of the
  Company's Common Stock on the Nasdaq National Market was $30.50 per share. See
  "Price Range of Common Stock and Dividend Policy."
    
 
  FOR INFORMATION  CONCERNING  CERTAIN FACTORS  WHICH  SHOULD BE  CONSIDERED  BY
  PROSPECTIVE INVESTORS, SEE "RISK FACTORS" COMMENCING ON PAGE 5.
 
  THESE  SECURITIES HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE  COMMISSION
  OR  ANY STATE  SECURITIES COMMISSION PASSED  UPON THE ACCURACY  OR ADEQUACY OF
  THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<S>                      <C>               <C>               <C>               <C>
                                           UNDERWRITING                        PROCEEDS
                         PRICE             DISCOUNTS AND     PROCEEDS TO       TO SELLING
                         TO PUBLIC         COMMISSIONS(1)    COMPANY(2)        STOCKHOLDERS
Per Share                $                 $                 $                 $
Total(3)                 $                 $                 $                 $
</TABLE>
 
   (1) The Company  and the Selling  Stockholders have agreed  to indemnify  the
      Underwriters  against certain liabilities, including liabilities under the
      Securities Act of 1933, as amended. See "Underwriting."
 
   (2) Before deducting expenses payable by the Company, estimated at $400,000.
 
   (3) The Company has granted the  Underwriters a 30-day option to purchase  up
      to   an  additional  495,000  shares  of  Common  Stock  solely  to  cover
      over-allotments. If  all such  shares are  purchased, the  total Price  to
      Public,  Underwriting Discounts  and Commissions, Proceeds  to Company and
      Proceeds to Selling Stockholders will be  $       , $       , $        and
      $      , respectively. See "Underwriting."
 
  The  shares of Common Stock are offered  by the Underwriters, subject to prior
  sale, when, as and if  delivered to and accepted by  them, and subject to  the
  approval of certain legal matters by counsel and certain other conditions. The
  Underwriters reserve the right to withdraw, cancel or modify such offer and to
  reject  orders in whole or in part. It is expected that delivery of the shares
  of Common Stock will be made in New York, New York against payment therefor on
  or about             , 1996.
 
 DEUTSCHE MORGAN GRENFELL
                  HAMBRECHT & QUIST
   
                                 UBS SECURITIES
    
                                                     WESSELS, ARNOLD & HENDERSON
 
  The date of this Prospectus is             , 1996
<PAGE>
                             AVAILABLE INFORMATION
 
    The Company is subject to  the informational requirements of the  Securities
Exchange  Act  of  1934, as  amended  (the  "Exchange Act"),  and  in accordance
therewith files  reports,  proxy  statements  and  other  information  with  the
Securities  and  Exchange  Commission (the  "Commission").  Such  reports, proxy
statements and  other information  can be  inspected and  copied at  the  public
reference  facilities maintained  by the Commission  at 450  Fifth Street, N.W.,
Judiciary Plaza,  Room 1024,  Washington, D.C.  20549, and  at the  Commission's
following  Regional Offices: Northwest  Atrium Center, 500  West Madison Street,
Suite 1400, Chicago, Illinois 60661; and  Seven World Trade Center, 13th  Floor,
New  York, New York 10048. Copies of such material can be obtained at prescribed
rates from the Public Reference Section  of the Commission at 450 Fifth  Street,
N.W.,  Judiciary Plaza,  Washington, D.C. 20549.  The Company's  Common Stock is
traded on the Nasdaq  National Market, and reports,  proxy statements and  other
information  concerning the Company also may be  inspected at the offices of the
National  Association  of  Securities  Dealers,  Inc.,  1735  K  Street,   N.W.,
Washington, D.C. 20006.
                            ------------------------
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
    The  following documents, filed with the  Commission under the Exchange Act,
are hereby incorporated by reference into this Prospectus:
 
    (a) The Company's Annual Report on Form 10-K, as amended by Form 10-K/A, for
the fiscal year ended January 31, 1996;
 
    (b) The Company's Quarterly Report on Form 10-Q for the quarter ended  April
30, 1996; and
 
    (c)  The  description  of  the  Company's  Common  Stock  set  forth  in its
Registration Statement on Form 8-A filed with the Commission on March 12, 1993.
 
    All documents filed by the Company pursuant to Sections 13(a), 13(c), 14  or
15(d)  of the Exchange  Act after the date  of this Prospectus  and prior to the
termination of the  offering shall  be deemed  to be  incorporated by  reference
herein  and to be a part  hereof from the date of  filing of such documents. Any
statement contained in this Prospectus or  in a document incorporated or  deemed
to  be  incorporated by  reference  herein shall  be  deemed to  be  modified or
superseded for  purposes of  this  Prospectus to  the  extent that  a  statement
contained  herein  or in  any subsequently-filed  document which  also is  or is
deemed to  be  incorporated by  reference  herein modifies  or  supersedes  such
statement.  Any such  statement so modified  or superseded shall  not be deemed,
except as so modified or superseded, to constitute a part of this Prospectus.
 
    The Company  will  provide without  charge  to each  person,  including  any
beneficial  owner, to  whom this Prospectus  is delivered, upon  written or oral
request of such person, a  copy of any and all  of the documents that have  been
incorporated  by  reference herein  (not  including exhibits  to  such documents
unless such exhibits are specifically  incorporated by reference herein or  into
such  documents).  Such request  may be  directed to  Wind River  Systems, Inc.,
Attention: Chief Financial  Officer, 1010 Atlantic  Avenue, Alameda,  California
94501, telephone number (510) 748-4100.
                            ------------------------
 
    IN  CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR EFFECT
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE COMMON STOCK OF
THE COMPANY AT  A LEVEL ABOVE  THAT WHICH  MIGHT OTHERWISE PREVAIL  IN THE  OPEN
MARKET.  SUCH TRANSACTIONS  MAY BE  EFFECTED ON  THE NASDAQ  NATIONAL MARKET, OR
OTHERWISE. SUCH STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
                            ------------------------
 
    IN CONNECTION WITH  THIS OFFERING,  CERTAIN UNDERWRITERS  AND SELLING  GROUP
MEMBERS  OR THEIR AFFILIATES MAY ENGAGE IN PASSIVE MARKET MAKING TRANSACTIONS IN
THE COMMON STOCK OF THE COMPANY ON THE NASDAQ NATIONAL MARKET IN ACCORDANCE WITH
RULE 10B-6A UNDER THE EXCHANGE ACT. SEE "UNDERWRITING."
                            ------------------------
 
   
    VXWORKS-REGISTERED TRADEMARK-,  WIND-REGISTERED  TRADEMARK- and  WIND  RIVER
SYSTEMS-REGISTERED  TRADEMARK- are registered trademarks and CROSSWIND, IXWORKS,
TORNADO, TORNADO  FOR  I(2)0,  VXMP,  VXSIM,  VXVMI,  WIND  FOUNDATION  CLASSES,
WINDNET, WINDVIEW AND WINDX are trademarks of the Company. All other brand names
or  trademarks appearing in this Prospectus are the property of their respective
holders.
    
 
                                       2
<PAGE>
                               PROSPECTUS SUMMARY
 
   
    THE  FOLLOWING SUMMARY  IS QUALIFIED  IN ITS  ENTIRETY BY  THE MORE DETAILED
INFORMATION AND FINANCIAL DATA  APPEARING ELSEWHERE IN  THIS PROSPECTUS, AND  IN
THE  DOCUMENTS INCORPORATED HEREIN BY REFERENCE. UNLESS OTHERWISE INDICATED, THE
INFORMATION CONTAINED IN THE PROSPECTUS (I) DOES NOT GIVE EFFECT TO THE EXERCISE
OF THE UNDERWRITERS' OVER-ALLOTMENT  OPTION AND (II) HAS  BEEN ADJUSTED TO  GIVE
EFFECT  TO A THREE-FOR-TWO STOCK SPLIT EFFECTED  BY MEANS OF A STOCK DIVIDEND ON
MAY 24, 1996.
    
 
                                  THE COMPANY
 
   
    Wind River  develops,  markets  and  supports  advanced  software  operating
systems  and development tools  that allow customers  to create complex, robust,
real-time software applications for embedded computers. An embedded computer  is
a  microprocessor that is incorporated into a  larger device and is dedicated to
responding to external events by performing specific tasks quickly,  predictably
and reliably. Some examples of such devices are telecommunications products such
as  PABX, routers, central  office switches and  call processing systems; office
products  such  as  fax  machines,  laser  printers  and  photocopiers;  vehicle
anti-lock  brakes and navigation systems;  consumer products such as camcorders,
video games and set-top boxes; medical instrumentation and imaging systems;  and
industrial  automation  equipment  such  as robots.  Wind  River's  products and
services enable customers  to enhance product  performance, standardize  designs
across  projects,  reduce research  and  development costs  and  shorten product
development  cycles.  The  Company's  TORNADO  product  represents  the   latest
generation  of development environments for embedded and real-time applications.
TORNADO  provides  the  developer  of  embedded  systems  a  robust  development
environment  for a  wide variety of  host platforms  and microprocessor targets.
Wind River  has strategic  relationships with  most of  the major  semiconductor
companies,  including ARM,  Hewlett-Packard, Hitachi,  Intel, Motorola, Siemens,
Silicon Graphics and Sun Microsystems. In  addition, in January 1996, Intel  and
Wind  River entered  into an  agreement pursuant  to which  Intel has  agreed to
supply an evaluation copy  of TORNADO FOR I(2)O  to each customer purchasing  an
Intel  i960  RP  I/O  microprocessor,  and  a  copy  of  IXWORKS  on  each  such
microprocessor sold.  IXWORKS  is  a real-time  operating  system  for  creating
I(2)O-specification  compliant  intelligent  I/O  systems  for  servers, network
devices and  storage adaptor  cards. Wind  River is  also currently  working  on
various  initiatives to  capitalize on the  increasing use of  the Internet. The
Company's products have been deployed by a broad range of organizations, ranging
from   companies   in   the   following   industries:   telecommunications   and
datacommunications; office automation and computers; medical and industrial; and
aerospace,  research  and  defense.  Wind  River's  customers  include  ABB, Bay
Networks, StrataCom (Cisco Systems),  General Motors, Hewlett-Packard,  Hitachi,
Hughes Network Systems, Intel, Lockheed-Martin, Motorola, NEC, Northern Telecom,
Rockwell, Siemens, Silicon Graphics, Sun Microsystems and Texas Instruments.
    
 
                                  THE OFFERING
 
<TABLE>
<S>                                                           <C>
U.S. Offering...............................................  2,475,000 shares
International Offering......................................  825,000 shares
    Total...................................................  3,300,000 shares (including 1,650,000 shares by the Company and
                                                              1,650,000 by the Selling Stockholders)
Common Stock to be Outstanding
 after the Offering.........................................  15,679,751 shares(1)
Use of Proceeds.............................................  The net proceeds are expected to be added to working capital
                                                              and used for general corporate purposes.
Nasdaq National Market Symbol...............................  WIND
</TABLE>
 
                   SUMMARY CONSOLIDATED FINANCIAL INFORMATION
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
   
<TABLE>
<CAPTION>
                                                                                                                        THREE
                                                                                                                       MONTHS
                                                                                                                        ENDED
                                                                              YEARS ENDED JANUARY 31,                 APRIL 30,
                                                               -----------------------------------------------------  ---------
                                                                 1992       1993       1994       1995       1996       1995
                                                               ---------  ---------  ---------  ---------  ---------  ---------
<S>                                                            <C>        <C>        <C>        <C>        <C>        <C>
CONSOLIDATED INCOME STATEMENT DATA:
Total revenues...............................................  $  17,085  $  25,053  $  27,341  $  32,100  $  44,000  $   8,700
Operating income.............................................      1,725      3,059        523      3,452      8,130        914
Net income...................................................      1,093      1,721        332      2,460      5,383        667
Net income per share.........................................        .11        .16        .02        .17        .35        .04
Common shares used in the calculation of net income per
 share(2)....................................................      9,611     10,455     13,317     14,300     15,491     15,065
 
<CAPTION>
 
                                                                 1996
                                                               ---------
<S>                                                            <C>
CONSOLIDATED INCOME STATEMENT DATA:
Total revenues...............................................  $  12,600
Operating income.............................................      2,198
Net income...................................................      1,470
Net income per share.........................................        .09
Common shares used in the calculation of net income per
 share(2)....................................................     15,992
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                                                                           APRIL 30, 1996
                                                                                                     --------------------------
                                                                                                      ACTUAL    AS ADJUSTED(3)
                                                                                                     ---------  ---------------
<S>                                                                                                  <C>        <C>
CONSOLIDATED BALANCE SHEET DATA:
Cash and short-term investments....................................................................  $  27,909     $  75,192
Working capital....................................................................................     27,233        74,516
Total assets.......................................................................................     46,464        93,747
Stockholders' equity...............................................................................     32,830        80,113
</TABLE>
    
 
- ------------
   
(1)  Excludes  2,417,323  shares  of  Common  Stock  issuable  upon  exercise of
    outstanding stock options at a weighted average exercise price of $6.65  per
    share  and  150,000 shares  of  Common Stock  issuable  upon exercise  of an
    outstanding warrant at an exercise price of $7.39.
    
   
(2) See Note  1 of Notes  to Consolidated Financial  Statements incorporated  by
    reference in this Prospectus.
    
   
(3) Adjusted to reflect the sale by the Company of shares of Common Stock hereby
    at  an assumed  public offering price  of $30.50 per  share, after deducting
    underwriting discounts and commissions and the expenses of the offering, and
    the application  of  the  estimated  net proceeds  therefrom.  See  "Use  of
    Proceeds" and "Capitalization."
    
 
                                       3
<PAGE>
                                  THE COMPANY
 
   
    Wind  River Systems, Inc. ("Wind River"  or the "Company") develops, markets
and supports  advanced software  operating systems  and development  tools  that
allow  customers to create complex,  robust, real-time software applications for
embedded  computers.  An   embedded  computer  is   a  microprocessor  that   is
incorporated  into a  larger device and  is dedicated to  responding to external
events by  performing specific  tasks quickly,  predictably and  reliably.  Some
examples  of such devices are telecommunications products such as PABX, routers,
central office switches and call processing systems; office products such as fax
machines,  laser  printers  and  photocopiers;  vehicle  anti-lock  brakes   and
navigation  systems;  consumer  products  such as  camcorders,  video  games and
set-top boxes;  medical  instrumentation  and imaging  systems;  and  industrial
automation  equipment such  as robots.  Wind River's  flagship product, TORNADO,
enables customers  to enhance  product performance,  standardize designs  across
projects,  reduce research and development costs and shorten product development
cycles.
    
 
   
    To succeed in today's increasingly competitive markets, manufacturers  using
embedded  computers  must bring  complex  applications for  embedded  systems to
market rapidly and economically. Development of real-time embedded  applications
has  evolved from a relatively modest  programming task to a complex engineering
effort. As  more  powerful and  affordable  32-bit microprocessors  have  become
available,   products  based  on  them  have   become  richer  in  features  and
functionality. In addition,  the complexity of  embedded software is  increasing
dramatically,  while the time  available for product  development is decreasing.
More sophisticated development tools are required to develop these more  complex
applications,  frequently including  a real-time operating  system ("RTOS") that
provides far  more functionality,  higher performance  and greater  productivity
than   that  necessary  or   feasible  for  programming   prior  generations  of
microprocessors.  Wind   River's  flexible   operating  systems   and   powerful
development  tools allow customers  to create and  standardize complex real-time
embedded software applications quickly and efficiently.
    
 
   
    TORNADO is a scalable, cross-development environment that enables  engineers
to  develop embedded applications on  a host workstation or  PC and download the
code via a network or other communications  channel to an RTOS that runs on  all
significant  32- and 64-bit embedded target microprocessors. TORNADO consists of
three integrated components:  the TORNADO  toolset, a  set of  cross-development
tools  and utilities; the VXWORKS run-time  system, a high performance, scalable
RTOS that executes on the target  processor; and a full range of  communications
options.  TORNADO  offers  a  completely open  and  extensible  environment that
facilitates the integration of  a wide variety of  third-party tools as well  as
the  customization of TORNADO tools  by the developer. With  a wide selection of
processors and board  support packages, VXWORKS  provides broad portability  and
adheres to a variety of computing standards. In addition, in January 1996, Intel
and  Wind River entered into an agreement  pursuant to which Intel has agreed to
supply an evaluation  copy of  TORNADO FOR I20  to each  customer purchasing  an
Intel   i960  RP  I/O  microprocessor  and  a  copy  of  IXWORKS  on  each  such
microprocessor  sold.  IXWORKS  is  an  RTOS  for  developing  I2O-specification
compliant  intelligent  I/O systems  for  servers, network  devices  and storage
adaptor  cards.  The   Company  also  has   product  initiatives  for   Internet
applications.
    
 
   
    The   Company  believes  that  strategic  relationships  with  semiconductor
manufacturers and embedded device manufacturers are significant strengths of the
Company and key  to future  success in  the embedded  systems marketplace.  Wind
River has strategic relationships with most of the major semiconductor companies
including  ARM,  Hewlett-Packard,  Hitachi,  Intel,  Motorola,  Siemens, Silicon
Graphics and Sun Microsystems. This strategy has allowed the Company to leverage
its partners' sales  channels to give  its products the  widest possible  market
exposure. The Company also enters into joint marketing and sales agreements with
certain  developers  of  third-party  applications as  a  means  to  enhance its
products with industry-specific functionality.
    
 
   
    Wind River markets  its products and  services in North  America and  Europe
primarily  through its  own direct sales  organization, which  consists of sales
persons  and  field   application  engineers.   Wind  River   has  13   licensed
international  distributors  principally  to  serve  customers  in  regions  not
serviced  by  the  Company's   direct  sales  force   or  its  Japanese   master
distributors. Wind River's customers include ABB, Bay Networks, StrataCom (Cisco
Systems),  General  Motors,  Hewlett-Packard, Hitachi,  Hughes  Network Systems,
Intel, Lockheed-Martin,  Motorola,  NEC, Northern  Telecom,  Rockwell,  Siemens,
Silicon Graphics, Sun Microsystems and Texas Instruments.
    
 
    The  Company was  incorporated in California  in 1983  and reincorporated in
Delaware in April 1993. The Company's principal executive offices are located at
1010 Atlantic Avenue, Alameda, California 94501 and its telephone number at that
location is (510) 748-4100.
 
                                       4
<PAGE>
                                  RISK FACTORS
 
    EXCEPT FOR THE  HISTORICAL INFORMATION CONTAINED  HEREIN, THE DISCUSSION  IN
THIS  PROSPECTUS  CONTAINS  FORWARD-LOOKING  STATEMENTS  WITHIN  THE  MEANING OF
SECTION 27A OF THE SECURITIES  ACT OF 1933, AS  AMENDED, THAT INVOLVE RISKS  AND
UNCERTAINTIES.  THE COMPANY'S ACTUAL RESULTS  COULD DIFFER MATERIALLY FROM THOSE
DISCUSSED HERE.  FACTORS THAT  COULD  CAUSE OR  CONTRIBUTE TO  SUCH  DIFFERENCES
INCLUDE,  BUT  ARE NOT  LIMITED  TO, THOSE  DISCUSSED  BELOW, AS  WELL  AS THOSE
DISCUSSED ELSEWHERE IN THIS PROSPECTUS AND IN ANY DOCUMENTS INCORPORATED  HEREIN
BY  REFERENCE.  IN ADDITION  TO THE  OTHER INFORMATION  IN THIS  PROSPECTUS, THE
FOLLOWING FACTORS SHOULD BE CONSIDERED CAREFULLY IN EVALUATING AN INVESTMENT  IN
THE COMMON STOCK OFFERED BY THIS PROSPECTUS.
 
   
    RELIANCE  ON CORE FAMILY OF PRODUCTS.  Revenue from sales of the TORNADO and
VXWORKS family of products and services  accounted for approximately 77% of  the
Company's  revenues in each of  the fiscal year ended  January 31, 1996, and the
three months ended April 30, 1996.  The Company's future results depend  heavily
on  continued  market  acceptance of  these  products in  the  Company's current
markets  and  successful  application  in  new  markets.  Any  factor  adversely
affecting the market for the TORNADO and VXWORKS family of products and services
could  have  a  material adverse  effect  on the  Company's  business, financial
condition and results of  operations. Because in  certain instances the  Company
receives  a royalty based on the number of VXWORKS operating systems sold by its
customers, the  Company  is  also  dependent  upon  its  customers'  success  in
developing and introducing new products and systems that incorporate VXWORKS. To
the  extent that such customers are not  successful, the Company may not be able
to meet its  objectives, and its  business, financial condition  and results  of
operations would be materially and adversely affected.
    
 
    RISKS ASSOCIATED WITH NEW AND CHANGING MARKETS.  The Company is continuously
engaged  in product development for new  or changing markets. In particular, the
Company has invested significant time and effort, together with a consortium  of
industry  participants, in the  development of I2O, a  new specification that is
intended to create  an open standard  set of interface  specifications for  high
performance  I/O systems.  The specification is  intended to be  used by system,
network and peripheral interface card and operating systems vendors to  simplify
the task of building and maintaining high-performance
I/O  subsystems. The  Company also  has developed  IXWORKS, an  RTOS for  use in
conjunction with the I2O specification. The success of the I2O specification and
the IXWORKS product line depends heavily on  its adoption by a broad segment  of
the  industry.  The Company  also is  expending  substantial time  and financial
resources to  develop  embedded operating  software  and development  tools  for
Internet applications. The commercial Internet market has only recently begun to
develop, is rapidly changing and is characterized by an increasing number of new
entrants  with competitive products. Moreover, there  is an increasing number of
new Internet protocols  to which the  Company's products must  be ported. It  is
unclear  which  of  these  competing protocols  ultimately  will  achieve market
acceptance. If the Company develops products directed at Internet protocols that
ultimately  fail  to  be  widely  adopted,  the  Company's  business,  financial
condition and results of operations may be materially and adversely affected. It
is  difficult to  predict with  any assurance  whether demand  for any  of these
products will develop or increase in the future. If these markets, or any  other
new  market targeted by the Company in the future, fail to develop, develop more
slowly than anticipated or become  saturated with competitors, if the  Company's
products  are not developed in a timely manner, or if the Company's products and
services do not achieve  or sustain market  acceptance, the Company's  business,
financial  condition and results of operations would be materially and adversely
affected. See "The Company" and "Business--Products" and "--Product  Development
and Engineering."
 
   
    SIGNIFICANT  FLUCTUATIONS IN OPERATING RESULTS.  The Company has experienced
significant period-to-period fluctuations in revenues and operating results  and
anticipates  that  such fluctuations  will continue.  These fluctuations  may be
attributable to a number of factors,  including the volume and timing of  orders
received  during  the quarter,  the timing  and acceptance  of new  products and
product enhancements by the Company or its competitors, unanticipated sales  and
buyouts of run-time licenses, stages of product life cycles, purchasing patterns
of  customers  and  distributors,  market acceptance  of  products  sold  by the
Company's customers,  competitive conditions  in the  industry, business  cycles
affecting the
    
 
                                       5
<PAGE>
   
markets  in which the Company's products are sold, extraordinary events, such as
acquisitions, including related charges, and economic conditions generally or in
specific geographic  areas. The  future  operating results  of the  Company  may
fluctuate  as  a result  of  these and  other  factors, including  the Company's
ability to continue to develop innovative and competitive products. In addition,
the Company has not  entered into long-term agreements  with its customers,  and
the  timing of license fees is difficult  to predict. The procurement process of
the Company's customers is often several  months or longer from initial  inquiry
to  order and may involve competing considerations. Further, as licensing of the
Company's products increasingly becomes a more strategic decision made at higher
management levels, there can be no assurance that sales cycles for the Company's
products will not lengthen. Product revenue in any quarter depends on the volume
and timing  of  orders  received in  that  quarter.  The Company  has  at  times
recognized  a substantial  portion of  its total  revenue from  sales booked and
shipped in the  latter part  of the quarter;  thus, the  magnitude of  quarterly
fluctuations  may not become evident until late in a particular quarter. Because
the Company's staffing  and operating  expenses are based  on anticipated  total
revenue  levels and a  high percentage of  the Company's costs  are fixed in the
short term, small variations  between anticipated orders  and actual orders,  as
well  as non-recurring or large  orders, could cause disproportionate variations
in the Company's operating  results from quarter to  quarter. Revenues also  are
typically  higher in  the fourth  quarter than in  other quarters  of the fiscal
year, which ends on January 31, primarily as a result of purchases by  customers
prior  to the  calendar year end,  as well as  by customers who  purchase at the
commencement of a new calendar year. These trends are expected to continue.
    
 
    A number  of  additional factors  may  in  the future  cause  the  Company's
revenues  and operating  results to  vary significantly  from period  to period.
These factors  include:  software  "bugs" or  other  product  quality  problems;
changes  in operating expenses; changes  in Company strategy; personnel changes;
foreign currency exchange rates; and mix of products sold. Although the  Company
has  been profitable for the last several years on an annual basis, there can be
no assurance that the Company will be able to continue its growth in revenue  or
sustain  its profitability  on a quarterly  or annual  basis. Due to  all of the
foregoing factors, the Company believes that period-to-period comparisons of its
results of operations are  not necessarily meaningful and  should not be  relied
upon as an indication of future performance. It is possible that, in some future
quarters,  the Company's  operating results  will be  below the  expectations of
stock market analysts  and investors.  In such event,  the price  of the  Common
Stock would likely be materially and adversely affected.
 
   
    DEPENDENCE  ON  VME  MARKET.   A  significant  percentage  of  the Company's
revenues historically has been  derived from sales of  systems built to the  VME
(versabus  module eurocard) standard.  These systems typically  are used in high
cost, low volume applications, including military, telecommunications, space and
research applications. Although the Company believes that revenues from sales of
products  designed  for  embedded  systems  applications  will  account  for  an
increasing  percentage  of the  Company's revenues  in  the future,  the Company
expects revenues  from the  VME market  to continue  to be  significant for  the
foreseeable  future.  Academic institutions  and defense  industry participants,
which generate  a  significant  portion  of  the  Company's  VME  revenues,  are
dependent  on  government  funding,  the  continued  availability  of  which  is
uncertain. Any unanticipated termination of government funding of VME  customers
could  have  a  material adverse  effect  on the  Company's  business, financial
condition and results of operations. See "Business--Customers."
    
 
    COMPETITION.  The embedded real-time software industry is highly competitive
and is characterized by rapidly advancing technology. The Company believes  that
the   principal  competitive   factors  in   the  industry   are  functionality,
reliability, service, reputation and  pricing. In order  to maintain or  improve
its  position in the industry, the Company  must continue to enhance its current
products and develop new  products and product  extensions rapidly. The  Company
believes  that  its  principal  competition comes  from  companies  that develop
real-time embedded software development systems in-house rather than  purchasing
such  systems from  independent software  vendors such  as the  Company. Many of
these organizations  have substantial  internal programming  resources with  the
capability  to  develop  specific products  for  their needs.  The  Company also
competes with other independent software vendors,
 
                                       6
<PAGE>
including Integrated Systems, Inc.,  Mentor Graphics, Inc. (through  acquisition
of  Microtec/Ready  Sytems),  Microware  Systems  Corporation  and  JavaSoft,  a
division of  Sun Microsystems,  Inc.  In addition,  hardware or  other  software
vendors  could seek to  expand their product offerings  by designing and selling
products that directly compete with or  adversely affect sales of the  Company's
products.  Many  of  the  Company's  existing  and  potential  competitors  have
substantially greater financial, technical,  marketing and sales resources  than
the Company. In addition, the Company is aware of ongoing efforts by competitors
to emulate the performance and functionality of the Company's products and there
can  be no  assurance that competitors  will not develop  equivalent or superior
technology to  that of  the Company.  Because a  substantial percentage  of  the
Company's  revenues  have been  derived from  sales of  the TORNADO  and VXWORKS
family of  products and  services,  the effects  of  competition could  be  more
adverse than would be the case if the Company had a broader product offering. In
addition,  competitive pressures could cause the Company to reduce the prices of
its products, which  would result  in reduced profit  margins. There  can be  no
assurance  that  the Company  will be  able to  compete effectively  against its
current  and  future  competitors.   If  the  Company   is  unable  to   compete
successfully,  its business, financial condition and results of operations would
be materially and adversely affected. See "Business--Competition."
 
   
    MANAGEMENT OF  GROWTH;  DEPENDENCE ON  KEY  PERSONNEL; NEED  FOR  ADDITIONAL
PERSONNEL.   The Company has experienced, and expects to continue to experience,
significant growth in the number of  employees, the scope and complexity of  its
operating  and financial systems and the  geographic area of its operations. The
Company's  continued  success  will  depend  significantly  on  its  ability  to
integrate  new operations and new personnel. There  can be no assurance that the
Company will  be  successful  in  achieving  such  integration  efficiently.  In
addition,   the  Company  anticipates  the  need  to  relocate  its  management,
engineering, marketing, sales and customer support operations to a new  facility
within  the  next  several  years.  There can  be  no  assurance  that  any such
relocation will be  accomplished efficiently, or  that the Company's  operations
will  not be materially and adversely affected by such relocation. The Company's
future  performance  depends  to  a   significant  degree  upon  the   continued
contributions  of  its key  management,  product development,  marketing, sales,
customer support  and operations  personnel,  several of  whom have  joined  the
Company only recently. In addition, the Company believes its future success will
depend  in  large part  upon its  ability to  attract and  retain highly-skilled
managerial,  product  development,  marketing,   sales,  customer  support   and
operations  personnel, many  of whom are  in great demand.  Competition for such
personnel is  particularly intense  in the  San Francisco  Bay Area,  where  the
Company is headquartered, and there can be no assurance that the Company will be
successful  in  attracting  and retaining  such  personnel. The  failure  of the
Company to attract, integrate  and retain the necessary  personnel would have  a
material  adverse  effect on  the  Company's business,  financial  condition and
results of operations. See "Business--Employees" and "Management."
    
 
    RAPID TECHNOLOGICAL  CHANGE;  DEPENDENCE  ON NEW  PRODUCTS.    The  embedded
real-time  software industry faces a  fragmented market characterized by ongoing
technological developments,  evolving industry  standards and  rapid changes  in
customer requirements. The Company's success depends and will continue to depend
upon  its ability to  continue to develop  and introduce in  a timely manner new
products that take advantage of  technological advances, to identify and  adhere
to  emerging standards, to continue to  improve the functionality of its TORNADO
development environment and  the scalability  and functionality  of the  VXWORKS
product, to offer its products across a spectrum of microprocessor families used
in   the  embedded  systems  market  and   to  respond  promptly  to  customers'
requirements. The  Company has  from  time to  time  experienced delays  in  the
development  of  new products  and the  enhancement  of existing  products. Such
delays are commonplace in the software industry. There can be no assurance  that
the Company will be successful in developing and marketing, on a timely basis or
at all, competitive products, product enhancements and new products that respond
to  technological change, changes in customer requirements and emerging industry
standards, or  that  the Company's  enhanced  or new  products  will  adequately
address the changing needs of the marketplace. The inability of the Company, due
to  resource  constraints  or technological  or  other reasons,  to  develop and
introduce new products or product enhancements  in a timely manner could have  a
material  adverse  effect  on  the Company's  business,  financial  condition or
results of operations. From time to
 
                                       7
<PAGE>
   
time, the Company or its competitors may announce new products, capabilities  or
technologies  that have the potential  to replace or shorten  the life cycles of
the Company's existing products. There can be no assurance that announcements of
currently planned or other new products by the Company or others will not  cause
customers  to defer  purchasing existing  Company products.  Any failure  by the
Company to anticipate or  respond adequately to  changing market conditions,  or
any  significant delays  in product  development or  introduction, would  have a
material adverse  effect  on the  Company's  business, financial  condition  and
results of operations.
    
 
   
    In  addition, until recently, the Company's  products were primarily used on
the UNIX operating system. In September  1995, the Company introduced a  Windows
NT  and Windows 95 version of its products, and is targeting this platform for a
significant portion of its growth in the forseeable future. The market for  this
platform  has different characteristics  and includes more  competitors than the
UNIX market. As a  result, there can  be no assurance that  the Company will  be
successful  with these new products  in the Windows NT  or Windows 95 market, or
that significant new competition  will not enter the  market or develop. To  the
extent  that  the  Company  is  not successful  in  this  regard,  its business,
financial condition and results of  operations will be materially and  adversely
affected. See "Business--Product Development and Engineering."
    
 
   
    RISKS  ASSOCIATED WITH INTERNATIONAL OPERATIONS.   In the fiscal years ended
January 31, 1994, 1995 and 1996, the Company derived approximately 37%, 31%  and
35%, respectively, of its total revenue from sales outside of North America. The
Company expects that international sales will continue to generate a significant
percentage  of its  total revenue  in the  foreseeable future.  The Company also
expects to  make substantial  investments to  expand further  its  international
operations  and to increase its direct sales force in Europe and Asia. There can
be no assurance that these investments will result in commensurate increases  in
the  Company's  international  sales. International  operations  are  subject to
certain risks, including foreign government regulation; more prevalent  software
piracy;  longer  payment  cycles;  unexpected  changes  in,  or  imposition  of,
regulatory requirements,  tariffs,  import  and export  restrictions  and  other
barriers and restrictions; greater difficulty in accounts receivable collection;
potentially adverse tax consequences; the burdens of complying with a variety of
foreign  laws; staffing and managing  foreign operations; political and economic
instability;  changes   in   diplomatic  and   trade   relationships;   possible
recessionary  environments  in economies  outside the  United States;  and other
factors beyond  the control  of  the Company.  Sales  by the  Company's  foreign
subsidiaries  are  denominated in  the local  currency, and  an increase  in the
relative value of the dollar against such currencies would reduce the  Company's
revenues  in dollar  terms or  make the  Company's products  more expensive and,
therefore, potentially  less competitive  in foreign  markets. There  can be  no
assurance  that the Company's future results of operations will not be adversely
affected by currency fluctuations. The Company relies on distributors for  sales
of  its products in certain foreign  countries and, accordingly, is dependent on
their ability to promote and support the Company's products and, in some  cases,
to   translate  them   into  foreign  languages.   The  Company's  international
distributors generally offer products of several different companies,  including
in  some cases  products that are  competitive with the  Company's products, and
such  distributors  are  not   subject  to  any   minimum  purchase  or   resale
requirements.  There  can  be  no  assurance  that  the  Company's international
distributors will continue to  purchase the Company's  products or provide  them
with   adequate  levels   of  support.   See  "Business--Marketing,   Sales  and
Distribution."
    
 
    RISKS OF PRODUCT DEFECTS; PRODUCT AND OTHER LIABILITY.  As a result of their
complexity, software  products may  contain undetected  errors or  compatibility
issues,  particularly when  first introduced  or as  new versions  are released.
There can be no assurance that, despite  testing by the Company and testing  and
use by current and potential customers, errors will not be found in new products
after  commencement of commercial shipments. The occurrence of such errors could
result in loss of or delay in market acceptance of the Company's products, which
could have  a  material adverse  effect  on the  Company's  business,  financial
condition  and  results  of  operations. The  increasing  use  of  the Company's
products for applications  in systems  that interact directly  with the  general
public,  particularly applications in transportation,  medical systems and other
markets where the failure of the embedded system could
 
                                       8
<PAGE>
cause substantial property damage or  personal injury, could expose the  Company
to significant product liability claims. In addition, the Company's products may
be  used for applications in mission-critical business systems where the failure
of the  embedded  system could  be  linked  to substantial  economic  loss.  The
Company's  license  and other  agreements with  its customers  typically contain
provisions designed  to  limit  the  Company's  exposure  to  potential  product
liability  and other claims. The limitation of liability provisions contained in
the Company's  agreements are  not effective  in all  circumstances and  in  all
jurisdictions. Although the Company has not experienced any product liability or
economic  loss claims to  date, the sale  and support of  the Company's products
entails the risk of such claims.  The Company carries insurance against  product
liability  risks  and errors  or omissions  coverage, although  there can  be no
assurance that such insurance  will continue to be  available to the Company  on
commercially  reasonable terms or at all. A product liability claim or claim for
economic loss brought against the Company in excess of or outside the limits  of
its  insurance coverage, or  a product recall  involving the Company's software,
could have  a  material adverse  effect  on the  Company's  business,  financial
condition  and  results of  operations.  See "Business--Product  Development and
Engineering."
 
    LIMITED PROTECTION  OF PROPRIETARY  TECHNOLOGY.   The Company's  success  is
heavily  dependent upon its  proprietary technology. To  protect its proprietary
rights, the Company relies on a  combination of copyright, trade secret,  patent
and trademark laws, nondisclosure and other contractual restrictions on copying,
distribution  and technical measures. The Company seeks to protect its software,
documentation and other  written materials  through trade  secret and  copyright
laws,  which provide only  limited protection. In addition,  the Company has two
United States  patent  applications pending.  There  can be  no  assurance  that
patents  will issue from  the Company's pending applications  or that any claims
allowed will be of sufficient scope or  strength (or be issued in all  countries
where  the Company's products  can be sold) to  provide meaningful protection or
any commercial  advantage  to  the  Company.  As  part  of  its  confidentiality
procedures,  the Company generally enters into nondisclosure agreements with its
employees, consultants, distributors and corporate partners and limits access to
and  distribution  of   its  software,  documentation   and  other   proprietary
information.  End user licenses of the  Company's software are frequently in the
form of shrink wrap license agreements,  which are not signed by licensees,  and
therefore may be unenforceable under the laws of many jurisdictions. Despite the
Company's  efforts to  protect its  proprietary rights,  it may  be possible for
unauthorized third parties to copy the Company's products or to reverse engineer
or obtain and use information that the Company regards as proprietary. There can
be no assurance that  the Company's competitors  will not independently  develop
technologies  that  are substantially  equivalent or  superior to  the Company's
technologies. Policing unauthorized use of the Company's products is  difficult,
and while the Company is unable to determine the extent to which software piracy
of  its products  exists, software  piracy can  be expected  to be  a persistent
problem. In addition, effective protection  of intellectual property rights  may
be  unavailable or  limited in  certain countries.  The status  of United States
patent protection in the software industry  is not well defined and will  evolve
as  the United  States Patent  and Trademark  Office grants  additional patents.
Patents have been granted on  fundamental technologies in software, and  patents
may  issue  that  relate  to  fundamental  technologies  incorporated  into  the
Company's products.
 
    As the  number of  patents, copyrights,  trademarks and  other  intellectual
property  rights  in the  Company's industry  increases,  products based  on its
technology may increasingly become the subject of infringement claims. There can
be no assurance that third parties  will not assert infringement claims  against
the  Company in the future. Any such claims  with or without merit could be time
consuming, result in costly litigation, cause product shipment delays or require
the Company  to enter  into royalty  or licensing  agreements. Such  royalty  or
licensing  agreements, if required, may not  be available on terms acceptable to
the Company,  or at  all, which  could have  a material  adverse effect  on  the
Company's  business, financial condition and results of operations. In addition,
the Company  may  initiate  claims  or  litigation  against  third  parties  for
infringement of the Company's proprietary rights or to establish the validity of
the  Company's proprietary rights.  Litigation to determine  the validity of any
claims, whether or not  such litigation is determined  in favor of the  Company,
could result in significant expense to the Company and divert the efforts of the
Company's technical and management personnel from productive tasks. In the event
of  an adverse ruling in  any such litigation, the  Company might be required to
pay
 
                                       9
<PAGE>
substantial damages, discontinue the use and sale of infringing products, expend
significant resources to develop non-infringing technology or obtain licenses to
infringing technology. See "Business-- Proprietary Rights."
 
    VOLATILITY OF STOCK PRICE.  The  market price of the Company's Common  Stock
has  fluctuated  in the  past, and  is likely  to fluctuate  in the  future. The
Company believes  that  various  factors, including  quarterly  fluctuations  in
results  of operations, announcements of  new products by the  Company or by its
competitors, and changes  in the  software industry  in general  cause, and  may
continue  to cause the  market price of  the Common Stock  to fluctuate, perhaps
substantially. In addition, in recent years the stock market in general, and the
shares of technology  companies in  particular, have  experienced extreme  price
fluctuations.  This volatility has had a substantial effect on the market prices
of securities issued by the Company  and other high technology companies,  often
for  reasons unrelated to  the operating performance  of the specific companies.
The market prices of many high technology companies' stocks, including the stock
of the  Company,  are at  or  near their  historical  highs and  reflect  price/
earnings  ratios substantially above historical norms. There can be no assurance
that the market price  of the Common  Stock will remain at  or near its  current
level.  In the past,  following periods of  volatility in the  market price of a
company's  securities,  securities  class  action  litigation  has  often   been
instituted  against  that company.  Such litigation,  if instituted  against the
Company, could  result  in  substantial  costs and  a  diversion  of  management
attention  and  resources, which  would have  a material  adverse effect  on the
Company's business, financial condition and  results of operations, even if  the
Company  is  successful in  such suits.  These market  fluctuations, as  well as
general economic,  political  and  market conditions  such  as  recessions,  may
adversely  affect the  market price  of the  Common Stock.  See "Price  Range of
Common Stock and Dividend Policy."
 
    ANTI-TAKEOVER EFFECTS OF CERTIFICATE  OF INCORPORATION, BYLAWS AND  DELAWARE
LAW.    The  Company's Board  of  Directors has  the  authority to  issue  up to
2,000,000 shares  of  Preferred  Stock  and  to  determine  the  price,  rights,
preferences,  and privileges of those shares  without any further vote or action
by the stockholders. The rights of the  holders of Common Stock will be  subject
to, and may be adversely affected by, the rights of the holders of any Preferred
Stock  that may be issued in the  future. The issuance of Preferred Stock, while
providing desirable  flexibility in  connection with  possible acquisitions  and
other  corporate purposes, could have the effect of making it more difficult for
a third party  to acquire  a majority  of the  outstanding voting  stock of  the
Company. The Company has no present plans to issue shares of Preferred Stock. In
addition,  the  Company is  subject  to the  provisions  of Section  203  of the
Delaware General  Corporation Law,  an anti-takeover  law. Furthermore,  certain
provisions  of the Company's  Certificate of Incorporation  and By-laws may have
the effect of  delaying or preventing  changes in control  or management of  the
Company, which could adversely affect the market price of the Common Stock.
 
                                       10
<PAGE>
                                USE OF PROCEEDS
 
   
    The  net proceeds to  the Company from  the sale of  the 1,650,000 shares of
Common Stock  offered by  the Company  hereby are  estimated to  be  $47,283,000
($61,588,000  if the Underwriters'  over-allotment option is  exercised in full)
assuming the shares offered hereby are sold at a public offering price of $30.50
per share and after deducting  estimated underwriting discounts and  commissions
and offering expenses. The Company will not receive any of the proceeds from the
sale  of the  shares of  Common Stock offered  by the  Selling Stockholders. The
Company expects to use the net  proceeds of this offering for general  corporate
purposes,   including  working  capital  and   possible  acquisition  of  office
facilities  and  businesses,  products  or  technologies  complementary  to  the
Company's  current business.  The Company has  no present  plans, commitments or
agreements, and is not  currently involved in any  negotiations with respect  to
any  such acquisitions. Pending such uses, the Company intends to invest the net
proceeds from this offering in interest-bearing investment grade securities.
    
 
                PRICE RANGE OF COMMON STOCK AND DIVIDEND POLICY
 
    The Company's Common Stock is traded on the Nasdaq National Market under the
symbol  "WIND."  The  following  table  sets  forth,  for  the  fiscal  quarters
indicated,  the range of high  and low sales prices for  the Common Stock on the
Nasdaq National Market for the periods  indicated, adjusted to give effect to  a
three-for-two  stock  split effected  as a  stock  dividend on  May 24,  1996 to
stockholders of  record on  May 10,  1996. These  prices do  not include  retail
markups, markdowns or commissions.
 
   
<TABLE>
<CAPTION>
                                                                             HIGH        LOW
                                                                           ---------
<S>                                                                        <C>        <C>
Fiscal Year Ended January 31, 1995
  First Quarter..........................................................  $    4.67  $    2.92
  Second Quarter.........................................................       4.75       3.42
  Third Quarter..........................................................       6.08       3.83
  Fourth Quarter.........................................................       6.67       5.00
 
Fiscal Year Ended January 31, 1996
  First Quarter..........................................................      10.08       5.67
  Second Quarter.........................................................      11.83       7.17
  Third Quarter..........................................................      18.33      10.33
  Fourth Quarter.........................................................      20.42      16.00
 
Fiscal Year Ending January 31, 1997
  First Quarter..........................................................      27.00      18.33
  Second Quarter (through June 18, 1996).................................      36.38      25.33
</TABLE>
    
 
   
    As  of June 14, 1996, there were  approximately 264 holders of record of the
Common Stock. On  June 18,  1996, the  last sale  price reported  on the  Nasdaq
National Market for the Company's Common Stock was $30.50 per share.
    
 
    The  Company has never  declared or paid  any cash dividends  on its capital
stock. The Company currently  intends to retain future  earnings to finance  the
growth  and  development of  its business  and,  therefore, does  not anticipate
paying any cash dividends in the foreseeable future.
 
                                       11
<PAGE>
                                 CAPITALIZATION
 
   
    The following table sets forth the capitalization of the Company as of April
30, 1996, and  as adjusted  to reflect  the receipt by  the Company  of the  net
proceeds  from  the sale  of 1,650,000  shares  of Common  Stock offered  by the
Company hereby at an assumed public offering price of $30.50 per share and after
deducting  estimated  underwriting  discounts  and  commissions  and   operating
expenses:
    
 
   
<TABLE>
<CAPTION>
                                                                                    APRIL 30, 1996
                                                                                -----------------------
                                                                                 ACTUAL    AS ADJUSTED
                                                                                ---------  ------------
                                                                                    (IN THOUSANDS)
<S>                                                                             <C>        <C>
Stockholders' equity:
Common Stock, par value $.001, 20,000 shares authorized; 14,180 issued and
 13,880 outstanding; 15,530 issued and outstanding, as adjusted(1)............  $      14   $       16
Additional paid in capital....................................................     25,038       67,487
Cumulative translation adjustments............................................       (198)        (198)
Retained earnings.............................................................     12,808       12,808
Less treasury stock, 300 shares at cost.......................................     (4,832)          --
                                                                                ---------  ------------
      Total stockholders' equity..............................................  $  32,830   $   80,113
                                                                                ---------  ------------
        Total capitalization..................................................  $  32,830   $   80,113
                                                                                ---------  ------------
                                                                                ---------  ------------
</TABLE>
    
 
- ------------
   
(1)  Excludes  2,629,305 shares of Common Stock  issuable upon exercise of stock
     options outstanding at April 30, 1996 at a weighted average exercise  price
     of  $6.21  per  share and  150,000  shares  of Common  Stock  issuable upon
     exercise of a warrant outstanding at April 30, 1996 at an exercise price of
     $7.39. The  Company  is  soliciting stockholder  approval,  at  its  Annual
     Meeting of Stockholders to be held on July 23, 1996, of an amendment to the
     Company's Certificate of Incorporation to increase the number of authorized
     shares of Common Stock to 75,000,000 from 20,000,000.
    
 
                                       12
<PAGE>
                      SELECTED CONSOLIDATED FINANCIAL DATA
 
   
    The  following  selected  consolidated  financial  data  should  be  read in
conjunction  with  the  consolidated  financial  statements  and  notes  thereto
incorporated  by  reference in  this Prospectus.  The consolidated  statement of
income  data  for  the  three-year  period  ended  January  31,  1996  and   the
consolidated  balance sheet data at  January 31, 1995 and  1996 are derived from
and should  be  read in  conjunction  with the  audited  consolidated  financial
statements  and notes thereto incorporated by  reference in this Prospectus. The
consolidated statement of income data for  the years ended January 31, 1992  and
1993  and the consolidated balance sheet data at January 31, 1992, 1993 and 1994
are derived  from  audited consolidated  financial  statements not  included  or
incorporated  by reference herein. The consolidated statement of income data for
the three months ended  April 30, 1995 and  1996 and consolidated balance  sheet
data  at  April  30,  1996 are  derived  from  unaudited  consolidated financial
statements that have been  prepared on the same  basis as the audited  financial
statements   and,  in  the  opinion   of  management,  include  all  adjustments
(consisting  only  of  normal  recurring  adjustments)  necessary  for  a   fair
presentation  of the Company's financial position  and results of operations for
such periods.  Results of  operations  of interim  periods are  not  necessarily
indicative of results to be expected for the full fiscal year.
    
   
<TABLE>
<CAPTION>
                                                                                                             THREE MONTHS
                                                                 YEARS ENDED JANUARY 31,                   ENDED APRIL 30,
                                                  -----------------------------------------------------  --------------------
                                                    1992       1993       1994       1995       1996       1995       1996
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                                                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                               <C>        <C>        <C>        <C>        <C>        <C>        <C>
CONSOLIDATED STATEMENT OF INCOME DATA:
Revenues:
  Product.......................................  $  15,051  $  21,229  $  22,393  $  23,196  $  31,200  $   6,032  $   8,531
  Services......................................      2,034      3,824      4,948      8,904     12,800      2,668      4,069
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
    Total revenues..............................     17,085     25,053     27,341     32,100     44,000      8,700     12,600
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
Costs and expenses:
  Cost of product...............................      1,055      1,870      2,241      2,336      3,746        674      1,089
  Cost of services..............................      1,686      2,366      2,726      3,656      5,530      1,187      1,561
  Selling and marketing.........................      7,481     10,434     13,654     14,614     17,905      3,935      5,139
  Product development and engineering...........      3,088      4,373      4,222      4,656      5,531      1,234      1,595
  General and administrative....................      2,050      2,109      3,975      3,386      3,158        756      1,018
  Write-off of receivable from related party
    distributor.................................         --        842         --         --         --         --         --
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
    Total costs and expenses....................     15,360     21,994     26,818     28,648     35,870      7,786     10,402
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
Operating income................................      1,725      3,059        523      3,452      8,130        914      2,198
Other income (expense)..........................        (22)      (188)       130        453        661        162        192
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
Income before taxes.............................      1,703      2,871        653      3,905      8,791      1,076      2,390
Provision for income taxes......................        610      1,150        321      1,445      3,408        409        920
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
    Net income..................................  $   1,093  $   1,721  $     332  $   2,460  $   5,383  $     667  $   1,470
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
Net income per share............................  $    0.11  $    0.16  $    0.02  $    0.17  $    0.35  $    0.04  $    0.09
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
Shares used in computing net income per
 share(1).......................................      9,611     10,455     13,317     14,300     15,491     15,065     15,992
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
 
<CAPTION>
 
                                                                       JANUARY 31,                            APRIL 30,
                                                  -----------------------------------------------------  --------------------
                                                    1992       1993       1994       1995       1996       1995       1996
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                                                                (IN THOUSANDS)
<S>                                               <C>        <C>        <C>        <C>        <C>        <C>        <C>
CONSOLIDATED BALANCE SHEET DATA:
Cash and short-terms investments................  $   1,616  $   6,415  $  20,653  $  20,851  $  29,837  $  23,913  $  27,909
Working capital.................................      3,370      5,637     21,486     24,220     27,817     25,554     27,233
Total assets....................................     10,489     14,712     33,880     39,183     45,480     40,217     46,464
Total stockholders' equity......................      4,031      6,671     24,612     28,345     32,813     29,950     32,830
</TABLE>
    
 
- ------------
(1)  See  Note 1 of  Notes to Consolidated  Financial Statements incorporated by
     reference herein, for information  regarding the number  of shares used  in
     calculating net income per share.
 
                                       13
<PAGE>
QUARTERLY RESULTS
    The following table presents certain unaudited quarterly statement of income
data  for the nine quarters ended April  30, 1996. In the opinion of management,
this information has been prepared on the same basis as the audited consolidated
financial statements incorporated by reference  in this Prospectus and  includes
all necessary adjustments (consisting only of normal recurring adjustments) that
the  Company considers necessary  to present fairly  such information. The table
should be read in conjunction with the audited consolidated financial statements
of the Company and notes thereto  incorporated by reference in this  Prospectus.
The  Company's quarterly results  have in the past  been subject to fluctuations
and, as a  result, the  operating results for  any quarter  are not  necessarily
indicative of results for any future period.
   
<TABLE>
<CAPTION>
                                                                            QUARTERS ENDED
                                       -----------------------------------------------------------------------------------------
                                        APRIL 30,    JULY 31,     OCT. 31,     JAN. 31,     APRIL 30,    JULY 31,     OCT. 31,
                                          1994         1994         1994         1995         1995         1995         1995
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
                                                                 (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                    <C>          <C>          <C>          <C>          <C>          <C>          <C>
Revenues:
  Product............................   $   4,533    $   4,417    $   6,172    $   8,075    $   6,032    $   7,002    $   7,995
  Services...........................       2,004        2,658        1,944        2,298        2,668        3,098        3,405
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
    Total revenues...................       6,537        7,075        8,116       10,373        8,700       10,100       11,400
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
Costs and expenses:
  Cost of product....................         405          565          689          677          674          749          797
  Cost of services...................         704          765          992        1,195        1,187        1,233        1,550
  Selling and marketing..............       3,350        3,499        3,489        4,278        3,935        4,234        4,369
  Product development and
    engineering......................       1,255        1,023        1,081        1,297        1,234        1,332        1,410
  General and administrative.........         752          934          805          894          756          819          831
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
    Total costs and expenses.........       6,466        6,786        7,056        8,341        7,786        8,367        8,957
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
Operating income.....................          71          289        1,060        2,032          914        1,733        2,443
Other income.........................          24          138          165          126          162          213           55
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
Income before taxes..................          95          427        1,225        2,158        1,076        1,946        2,498
Provision for income taxes...........          17          167          452          809          409          739          961
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
    Net income.......................   $      78    $     260    $     773    $   1,349    $     667    $   1,207    $   1,537
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
Net income per share.................   $    0.01    $    0.02    $    0.05    $    0.09    $    0.04    $    0.08    $    0.10
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
Shares used in computing net income
 per share...........................      13,803       14,117       14,591       14,685       15,065       15,456       15,678
 
                                                                   AS A PERCENTAGE OF TOTAL REVENUES
                                       -----------------------------------------------------------------------------------------
Revenues:
  Product............................          69%          62%          76%          78%          69%          69%          70%
  Services...........................          31           38           24           22           31           31           30
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
    Total revenues...................         100          100          100          100          100          100          100
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
Costs and expenses:
  Cost of product....................           6            8            8            7            8            7            7
  Cost of services...................          11           11           12           12           14           12           14
  Selling and marketing..............          51           49           43           41           45           42           38
  Product development and
    engineering......................          19           14           13           13           14           13           12
  General and administrative.........          12           13           10            9            9            8            7
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
    Total costs and expenses.........          99           96           87           80           89           83           79
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
Operating income.....................           1            4           13           20           11           17           21
Other income.........................           0            2            2            1            2            2            0
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
Income before taxes..................           1            6           15           21           12           19           22
Provision for income taxes...........           0            2            6            8            5            7            8
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
    Net income.......................           1%           4%          10%          13%           8%          12%          13%
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
                                       -----------  -----------  -----------  -----------  -----------  -----------  -----------
 
<CAPTION>
 
                                        JAN. 31,     APRIL 30,
                                          1996         1996
                                       -----------  -----------
 
<S>                                    <C>          <C>
Revenues:
  Product............................   $  10,171    $   8,531
  Services...........................       3,629        4,069
                                       -----------  -----------
    Total revenues...................      13,800       12,600
                                       -----------  -----------
Costs and expenses:
  Cost of product....................       1,526        1,089
  Cost of services...................       1,560        1,561
  Selling and marketing..............       5,367        5,139
  Product development and
    engineering......................       1,554        1,595
  General and administrative.........         752        1,018
                                       -----------  -----------
    Total costs and expenses.........      10,759       10,402
                                       -----------  -----------
Operating income.....................       3,041        2,198
Other income.........................         231          192
                                       -----------  -----------
Income before taxes..................       3,272        2,390
Provision for income taxes...........       1,299          920
                                       -----------  -----------
    Net income.......................   $   1,973    $   1,470
                                       -----------  -----------
                                       -----------  -----------
Net income per share.................   $    0.13    $    0.09
                                       -----------  -----------
                                       -----------  -----------
Shares used in computing net income
 per share...........................      15,759       15,992
 
Revenues:
  Product............................          74%          68%
  Services...........................          26           32
                                       -----------  -----------
    Total revenues...................         100          100
                                       -----------  -----------
Costs and expenses:
  Cost of product....................          11            9
  Cost of services...................          11           12
  Selling and marketing..............          39           41
  Product development and
    engineering......................          11           13
  General and administrative.........           5            8
                                       -----------  -----------
    Total costs and expenses.........          78           83
                                       -----------  -----------
Operating income.....................          22           17
Other income.........................           2            2
                                       -----------  -----------
Income before taxes..................          24           19
Provision for income taxes...........           9            7
                                       -----------  -----------
    Net income.......................          14%          12%
                                       -----------  -----------
                                       -----------  -----------
</TABLE>
    
 
                                       14
<PAGE>
                                    BUSINESS
 
   
    Wind   River  Systems  develops,  markets  and  supports  advanced  software
operating systems and development tools that allow customers to create  complex,
robust,  real-time  software applications  for  embedded computers.  An embedded
computer is a microprocessor  that is incorporated into  a larger device and  is
dedicated to responding to external events by performing specific tasks quickly,
predictably and reliably. Wind River's products and services enable customers to
enhance   product  performance,  standardize  designs  across  projects,  reduce
research and  development  costs and  shorten  product development  cycles.  The
Company's  TORNADO  product  represents  the  latest  generation  of development
environments for  embedded  and real  time  applications. TORNADO  provides  the
developer  of embedded systems  a robust development  and deployment environment
for a wide variety of host platforms and microprocessor targets.
    
 
INDUSTRY BACKGROUND
 
   
    Embedded  systems  consist  of   a  microprocessor  and  related   software,
incorporated  into a  larger device, dedicated  to performing a  specific set of
tasks. Embedded  systems  provide  an  immediate,  predictable  response  to  an
unpredictable sequence of external events. As more powerful microprocessors have
become  available and decreased in  price, embedded systems are  being used in a
wider range of applications and are facilitating the development of entirely new
products. Today, embedded systems are found in telecommunications products  such
as  PABX, routers, central  office switches and  call processing systems; office
products such  as  fax machines,  laser  printers and  photocopiers;  automotive
products  such  as vehicle  anti-lock  brakes and  navigation  systems; consumer
products such as  camcorders, video  games and set-top  boxes; medical  products
such as instrumentation and imaging systems; and industrial automation equipment
such   as  robots.  Emerging  embedded  Internet  applications  for  interactive
entertainment, network computers, remote maintenance  and other areas may  offer
significant additional opportunities for embedded systems.
    
 
   
    To  succeed in today's increasingly competitive markets, manufacturers using
embedded computers  must  bring complex  applications  for embedded  systems  to
market  rapidly and economically. Developing real-time embedded applications has
evolved from  a relatively  modest  programming task  to a  complex  engineering
effort.  As  more powerful  and  affordable 32-bit  microprocessors  have become
available,  products  based  on  them   have  become  richer  in  features   and
functionality.  In addition, the  complexity of embedded  software is increasing
dramatically, while the  time available for  product development is  decreasing.
More  sophisticated development tools are required to develop these more complex
applications, frequently including an RTOS that provides far more functionality,
higher performance and greater productivity than that necessary or feasible  for
programming   prior  generations  of   microprocessors.  Wind  River's  flexible
operating systems and powerful development  tools allow customers to create  and
standardize   complex  real-time  embedded  software  applications  quickly  and
efficiently.
    
 
    As  real-time  embedded  applications  increase  in  complexity,  the  costs
associated  with  software development,  support and  training of  engineers are
rising rapidly.  In  addition,  time-to-market,  conformance  to  standards  and
product  reliability have become critical  issues for companies developing real-
time embedded applications.
 
WIND RIVER DEVELOPMENT ENVIRONMENT AND OPERATING SYSTEM
 
   
    The Company's operating  systems and  development tools  allow customers  to
create  complex  real-time  embedded software  applications  more  quickly, more
economically and with less risk than creating such applications using internally
developed systems and tools. The Company's TORNADO product represents the latest
generation of development and execution environments for embedded and  real-time
applications.  TORNADO  provides  the  developer of  embedded  systems  a robust
development and deployment environment for a wide variety of host platforms  and
microprocessor  targets.  The  TORNADO  product  consists  of  three  integrated
components: the TORNADO toolset, a set of cross-development tools and utilities;
the VXWORKS run-time system, a high performance, scalable RTOS which executes on
the
    
 
                                       15
<PAGE>
target processor; and a  full range of communications  software options such  as
Ethernet,  serial line,  ICE or  ROM emulator for  the target  connection to the
host. The Wind River environment is designed with the following characteristics:
 
    OPEN, EXTENSIBLE  ENVIRONMENT.   The Company's  TORNADO product  is an  open
environment  that enables additional  tool integrations from  both the developer
and third party  vendors. A  set of  application programs  interfaces (APIs)  is
available  and published  on the  Internet for  reference, from  the GUI  to the
connection implementation. The Company believes  that this open environment  may
make  TORNADO  the  widespread  development  tool  for  embedded  and  real-time
applications.
 
    SCALABLE RTOS.   Real-time  embedded software  applications can  range  from
small,   memory-constrained  stand-alone   applications  to   large  distributed
applications. The Company's VXWORKS RTOS is built on a microkernel  architecture
that  requires only 8  kilobytes for a minimal  configuration, and also supports
large, complex applications. With VXMP, the extended multiprocessor package  for
VXWORKS,  applications  created  on  the  TORNADO  platform  can  be  scaled  to
supporting multi-processor hardware.
 
    PORTABLE.  The Company's development environment runs on all significant 32-
and 64-bit embedded target microprocessors.  The Company's VXWORKS product is  a
high  performance RTOS built upon an open architecture, and provides support for
a number of industry standards,  enabling developers to easily design  efficient
multi-vendor  systems and migrate  to different processors  with minimal effort.
The Company  believes  that  the  emergence  of  complex  32-bit  microprocessor
platforms,   coupled  with  pressure  for   faster  time-to-market  targets  for
developers, makes  open-platform,  highly  portable  development  and  execution
environments,  such as the Company's  TORNADO product, an attractive alternative
to developing proprietary tools and applications.
 
    CONFIGURABLE.  The Company's VXWORKS  RTOS (and optional components --  e.g.
VXVMP,  VXVMI, STREAMS, SNMP)  is a highly modular  design which allows optional
features and  device drivers,  both those  supplied  by Wind  River as  well  as
provided  by  third  parties,  to  be included  or  omitted  at  the developer's
discretion. This  allows customers  to create  a customized  RTOS to  fit  their
hardware  and  application  that  incorporates  only  necessary  functions. This
enables the customer to optimally size the RTOS using Wind River's configuration
tool--WINDCONFIG--which  makes   selection  of   features  and   management   of
alternative configurations easy.
 
   
    HIGHLY  FUNCTIONAL.  Wind River believes it  has a broad integrated suite of
tools. In  addition to  its core  toolset and  options, Wind  River has  created
visual development tools for real-time embedded systems. WINDVIEW, a development
and  analytical  tool,  VXSIM,  a complete  prototype  and  simulation  tool and
STETHOSCOPE, a  real  time  visualization, profiling  and  debugging  tool.  The
TORNADO  suite of host-based  debugging tools is  specifically designed to solve
the problems faced by developers of embedded systems. These tools share a common
GUI, and all the  tools connect through  a central server  that handles all  the
communication with the target.
    
 
    The  core toolset includes the CROSSWIND debugger and the GNU toolkit, shell
and link loader. Wind River also has  a broad suite of options for  applications
requiring multiprocessing (VXMP), virtual memory support (VXVMI) target resident
debugging,  customization  of  target  hardware (BSP  Porting  kit)  or advanced
networking functionality (WINDNET).
 
   
    UNIX, WINDOWS NT AND WINDOWS 95 SUPPORT.  The Company's TORNADO  environment
supports  Unix, Windows NT  and Windows 95 development  environments, and is the
only RTOS to  have earned  the Windows  95 logo.  The Company  has maintained  a
strong presence in providing development tools and the VXWORKS RTOS for the UNIX
operating  system. The Company also recognizes  the importance of Windows NT and
Windows 95 as potentially dominant  network operating systems, and in  September
1995  began to support  Windows NT and  Windows 95 with  the introduction of the
TORNADO development environment.
    
 
                                       16
<PAGE>
PRODUCTS
 
   
    Wind River's  operating systems  and development  tools allow  customers  to
create  complex  real-time  embedded software  applications  more  quickly, more
economically and with less risk than creating such applications using internally
developed systems and tools.
    
 
   
    TORNADO.    Wind  River's  flagship   product  is  TORNADO,  a   development
environment for embedded applications available for UNIX, Windows NT and Windows
95   development  platforms.  TORNADO  was  introduced  in  September  1995  and
subsequently won the Electronic  Design News award for  Innovation of the  Year.
TORNADO  is a scalable, cross-development  environment that enables engineers to
develop embedded applications on a host workstation or PC and download the  code
via  a  network or  other communications  channel to  an RTOS  that runs  on all
significant 32- and 64-bit embedded target microprocessor.
    
 
   
    TORNADO consists of three integrated components: the TORNADO toolset, a  set
of  cross-development tools and  utilities; the VXWORKS  run-time system, a high
performance, scalable RTOS which  executes on the target  processor; and a  full
range of communications options.
    
 
   
    The TORNADO development toolset consists of a launcher, a GNU compiler for C
and  C++ programs,  a remote  source level  debugger, a  user-interface shell, a
browser, and a variety of other software tools that run on the development host.
TORNADO  also  offers  a  completely   open  and  extensible  environment   that
facilitates  the integration of a  wide variety of third-party  tools as well as
the customization of TORNADO tools by the developer.
    
 
   
    VXWORKS.   VXWORKS  is  a  high  performance,  scalable  RTOS  based  on  an
object-oriented  microkernel  design.  The  run-time  system  offers  over 1,100
functions from real-time kernel functions to networking to utility routines such
as buffer and list management  for accelerating application development. With  a
wide  selection of processors and board support packages, VXWORKS provides broad
portability and adheres  to a  variety of computing  standards, including  POSIX
1003.1/1b, ANSI C, and TCP/IP.
    
 
    For  communications,  the development  toolset  can connect  to  an embedded
target over a variety  of options, including  Ethernet, serial line,  in-circuit
emulator,  ROM emulator, or custom. TORNADO  eliminates many of the dependencies
of a traditional cross-development environment. With TORNADO, developers can use
any host-target communication strategy and  the available tool functionality  is
the same regardless of the target processor resources.
 
   
    I2O  PRODUCT INITIATIVE.  In January 1996, Intel and Wind River entered into
an agreement pursuant to which Intel has agreed to supply an evaluation copy  of
TORNADO  FOR I2O to each customer purchasing an Intel i960 RP I/O microprocessor
and a copy of IXWORKS on each such microprocessor sold. I2O is being proposed by
a consortium of leading enterprise computing vendors with the intent of defining
and  promoting   an  open   standard  set   of  interface   specifications   for
high-performance  I/O systems. The specification will be used by system, network
and peripheral interface card and operating system vendors to simplify the  task
of   building  and   maintaining  high-performance   I/O  subsystems.   The  I2O
specification makes it possible for  systems to distribute I/O functions  across
multiple  processors, dramatically improving I/O and overall system performance.
Additionally,  the  specification  allows  vendors  of  network  and  peripheral
interface  cards to write a single device  driver that will be compatible with a
comprehensive range  of  operating systems  (OS),  OS releases,  and  vendor  OS
implementations. A license for the Company's IXWORKS operating system, a version
of  VXWORKS  made specifically  for the  Intel i960  RP microprocessor,  will be
included with every i960 RP that Intel ships. IXWORKS provides manufacturers the
elements they need to quickly design I2O specification-compliant intelligent I/O
into servers and network and storage  adapter cards. Along with the license  for
IXWORKS, Intel will deliver purchasers of the Intel i960 RP I/O microprocessor a
CD-ROM  that includes a 30-day  evaluation copy of TORNADO  FOR I2O. The Company
believes that its relationship with Intel  on the I2O specification project  may
open  up a new, potentially significant market opportunity for its products. See
"Risk Factors -- Risks Associated with New and Changing Markets."
    
 
                                       17
<PAGE>
    INTERNET INITIATIVE.  Wind River is currently working on various initiatives
to capitalize on the increasing use  of the Internet. The Company believes  that
there may be significant opportunities to increase the market size and scope for
its  products via the Java paradigm. The Company is also customizing many of its
applications to  better  serve  datacommunications/telecommunications  customers
that are building the Internet infrastructure.
 
ADDITIONAL PRODUCTS
 
    In addition to its core products, Wind River offers the following additional
products:
 
    VXWORKS  OPTIONS.   VXWORKS  options  include VXWINDOWS,  the  VXVMI virtual
memory interface,  and  the  VXMP  multi-processing  package.  VXWINDOWS,  which
includes  the X Windows  System client software  together with OSF-Motif, allows
developers  to  build  graphical  VXWORKS  applications.  VXVMI  virtual  memory
interface  provides run-time memory  management and debugging  facilities and an
application program  interface  standardized  across  different  microprocessing
architectures.  The  VXMP  multi-processing package  allows  applications  to be
scaled beyond the  performance of  single microprocessors by  allowing tasks  on
different microprocessors to synchronize and communicate.
 
    WINDNET.   WINDNET is  Wind River's networking  environment, comprising both
core technology from Wind River--such as  TCP/IP, STREAMS, and the WINDNET  SNMP
network  management product-- and numerous  integrated products from third party
partners providing various protocols,  ATM, network management, and  distributed
computing solutions.
 
    VXSIM  EMBEDDED SYSTEM SIMULATOR.  VXSIM  is a comprehensive prototyping and
simulation tool that  provides full  VXWORKS simulation on  a UNIX  workstation.
VXSIM enables application development to begin before hardware becomes available
and allows software testing to occur early in the development cycle, when errors
are less costly to correct.
 
    WINDVIEW.  WindView is a diagnostic and analysis tool that provides detailed
visibility  into the dynamic operation of an  embedded system. With it, the user
can quickly  and  easily  visualize the  complicated  interaction  among  tasks,
interrupt   service  routines  and  system   objects  in  an  application.  This
information is presented through a GUI.
 
    STETHOSCOPE.  The  Company is a  reseller of STETHOSCOPE,  a real-time  data
visualization,  profiling and debugging tool that  lets the end user examine and
analyze an  embedded application  while it  is running.  STETHOSCOPE features  a
multi-window environment that allows program variables to be plotted dynamically
on a workstation.
 
    WINDC++ OBJECT-ORIENTED LANGUAGE SUPPORT.  WINDC++ provides a cost-effective
basic  set of capabilities for real-time C++ development. It includes the cfront
C++  Language  System  from  Centerline  Software,  an  integrated  source  code
debugger,  an I/O  streams class  library for formatted  and buffered  I/O and a
runtime support library. WINDC++ is integrated with TORNADO and VXWORKS.
 
    WIND FOUNDATION CLASSES.  Wind Foundation Classes, designed specifically  to
accompany  TORNADO,  provide the  C++ programming  classes  needed by  a growing
number of customers.
 
    BOARD SUPPORT PACKAGE PORTING KIT.  The VXWORKS operating system can be used
with a wide variety of processor types and target environments. They isolate all
hardware-specific functionality into a special section of code called the  Board
Support Package or BSP. The BSP Porting Kit provides assistance to the developer
porting  TORNADO or  VXWORKS to  custom hardware  or to  a commercial  board not
supported by Wind  River. It  includes comprehensive  documentation, a  software
validation  suite,  project management  tools and  a template  BSP to  provide a
convenient starting point.  To assist  third-party developers,  Wind River  also
offers a service in which it tests and validates the resulting BSP.
 
SERVICES AND SUPPORT
 
    Wind  River provides  comprehensive customer  service and  support that help
customers realize the value and potential of the Company's products.
 
                                       18
<PAGE>
    TRAINING CLASSES.  Wind River offers several training courses and  workshops
relating to the use of its products. The courses are provided several times each
month and are taught by Wind River trainers at the Company's training facilities
in  Alameda, California and Orlando, Florida. Outside North America, the courses
are  given  under  license  from  the  Company  by  distributors  and   training
contractors. Training courses can also be provided at a customer site.
 
    TECHNICAL  SUPPORT.  The Company's technical support staff assists customers
with problems  and  questions in  the  installation  and use  of  the  Company's
products.  Technical  support  is  provided by  Wind  River's  staff  of support
engineers in North America, by staff support engineers and/or local distributors
in Europe and by the Company's Japanese subsidiary. Technical support is bundled
with product updates and maintenance and is offered on an annual fee basis. Wind
River's TORNADO includes a tool for submitting problem reports via the Internet.
 
   
    ENGINEERING  SERVICES.     A   number  of   services  are   provided  on   a
fee-for-service  basis, including BSP  validation, application level consulting,
customization, and porting to  strategic semiconductor architectures. These  are
coordinated and performed by the Engineering Services Group in North America and
Japan,  though  they may  on  occasion be  supported  by engineering  or outside
subcontractors in North America and Europe.
    
 
STRATEGIC ALLIANCES
 
   
    The  Company  believes  that  strategic  relationships  with   semiconductor
manufacturers and embedded device manufacturers are significant strengths of the
Company  and key  to future  success in  the embedded  systems marketplace. Wind
River has strategic relationships with most of the major semiconductor companies
including ARM,  Hewlett-Packard,  Hitachi,  Intel,  Motorola,  Siemens,  Silicon
Graphics and Sun Microsystems. This strategy has allowed the Company to leverage
its  partners' sales  channels to give  its products the  widest possible market
exposure. The Company also enters into joint marketing and sales agreements with
certain developers  of  third-party  applications  as a  means  to  enhance  its
products  with industry-specific  functionality. In  addition, in  January 1996,
Intel and  Wind River  entered into  an agreement  pursuant to  which Intel  has
agreed  to  supply  an evaluation  copy  of  TORNADO FOR  I2O  to  each customer
purchasing an Intel i960  RP I/O microprocessor  and a copy  of IXWORKS on  each
such microprocessor sold.
    
 
CUSTOMERS
 
   
    The Company's products have been deployed by a broad range of organizations,
ranging  from  companies  in the  following  industries:  telecommunications and
datacommunications; office automation and computers; medical and industrial; and
aerospace, research and defense. No single  customer accounted for more than  5%
of  the Company's total revenues in fiscal 1996, and the top 12 customers in the
aggregate  accounted  for  less  than  20%.  The  following  organizations   are
representative end users of the Company's products:
    
 
   
<TABLE>
<S>                                        <C>
TELECOMMUNICATIONS/DATACOMMUNICATIONS
- ------------------------------------------------------------------------------------
Applied Signal Technology                  Motorola Computer Group
Ascom Timeplex Inc.                        NetEdge Systems
AT&T                                       Network Equipment Technologies
Bay Networks                               Newbridge Networks
Dialogic Corp                              Nortel Inc.
Ericsson                                   Orbital Sciences Corp
General Instrument Corp.                   Qualcomm Inc.
Hitachi Computer Products (America), Inc.  StrataCom (Cisco Systems)
Hughes Network Systems                     Texas Instruments
Hyundai Electronics America                TRW, Inc.
Loral Communications Systems               ZeitNet Inc.
</TABLE>
    
 
                                       19
<PAGE>
   
<TABLE>
<S>                                        <C>
OFFICE AUTOMATION AND COMPUTERS
- ------------------------------------------------------------------------------------
Apple Computers                            Intel Corp
Computer Sciences Corp.                    Legacy Storage Systems
Cray Research                              SamSung Electronics Co.
Digital Equipment Corporation              Scitex Digital Video
Electronic Data Systems Corp. (EDS)        Silicon Graphics, Inc
Hewlett-Packard                            Whittaker Communications
IBM                                        Xerox Corp.
 
INDUSTRIAL AND MEDICAL
- ------------------------------------------------------------------------------------
ADAC Laboratories                          Heidelberger Drucksmaschinen AG
Allen-Bradley Co., Inc.                    Keithley Instruments, Inc.
Applied Materials                          KLA Instruments Corp
Eastman Kodak Company                      MTS Systems Corp.
Eaton Corp.                                Picker International
Fluke Corporation                          Siemens
General Motors                             SpaceLabs Medical
Harris Controls Division                   Tektronix Inc.
 
AEROSPACE, RESEARCH AND DEFENSE
- ------------------------------------------------------------------------------------
Boeing                                     Los Alamos National Labs
E-Systems                                  Lockheed-Martin
Fermi Labs                                 McDonnell Douglas Aerospace
GTE Government Systems Corp.               NASA
Harris                                     Rockwell
Jet Propulsion Laboratory                  Sandia National Laboratories
Johns Hopkins University                   Stanford University
</TABLE>
    
 
   
    Many  of the Company's  customers are building systems  to the VME standard.
These  systems  typically  are  used  in  high  cost,  low-volume  applications,
including  military,  telecommunications,  space  and  research  applications. A
significant percentage of the Company's revenues have been derived  historically
from  sales of products  designed for VME applications,  and the Company expects
revenues from  the VME  market to  be significant  for the  foreseeable  future.
Academic  institutions  and  defense  industry  participants,  which  generate a
significant portion of the Company's  VME revenues, are dependent on  government
funding,  the continued  availability of  which is  uncertain. Any unanticipated
termination of government  funding of VME  customers could have  a material  and
adverse  effect on  the Company's business,  financial condition  and results of
operations. See "Risk Factors -- Dependence on VME Market."
    
 
MARKETING, SALES AND DISTRIBUTION
 
   
    In North America and  Europe, Wind River markets  its products and  services
primarily   through  its  own  direct   sales  organization  which  consists  of
salespersons and field application engineers. Wind River has 44 domestic  direct
salespersons  and field application engineers  located throughout North America,
14 direct salespersons and field  application engineers located at  wholly-owned
subsidiaries in France, Germany and the United Kingdom and 12 engineering, sales
support and marketing employees in Japan.
    
 
    The  Company distributes its  products in Japan  through Wind River Systems,
K.K. ("WRSKK"), a joint venture in which the Company owns a 70% equity interest.
Innotech Corporation ("Innotech"), Kobe Steel Ltd. and Nissin Electric Ltd., the
other partners  in the  joint venture,  each  owns a  10% equity  interest.  The
Company  has  licensed its  products exclusively  to  WRSKK for  distribution in
Japan. WRSKK
 
                                       20
<PAGE>
has in turn  entered into  master distributor  agreements with  its three  joint
venture  partners that provide the right to appoint sub-distributors. See Note 2
of Notes to Consolidated Financial Statements incorporated by reference herein.
 
   
    Wind River has licensed 13  international distributors principally to  serve
customers  in regions not  serviced by the  Company's direct sales  force or its
Japanese  master  distributors.  The  Company  also  has  established  strategic
relationships  with  computer,  semiconductor  and  software  vendors  and works
closely with a number of system integrators worldwide that enable Wind River  to
further broaden the geographic and market scope for its products.
    
 
   
    Revenues from international sales represented approximately 37%, 31% and 35%
of  the Company's total revenue in fiscal 1994, 1995 and 1996, respectively. See
Note 9 of Notes to Consolidated Financial Statements for a summary of operations
by geographic region.
    
 
COMPETITION
 
   
    The embedded  real-time  software  industry is  highly  competitive  and  is
characterized  by rapidly  advancing technology.  The Company  believes that the
principal competitive factors  in the industry  are functionality,  reliability,
service, reputation and pricing. In order to maintain or improve its position in
the  industry, the  Company must  continue to  enhance its  current products and
develop new products and product  extensions rapidly. The Company believes  that
its  principal competition comes from  companies that develop real-time embedded
software development systems in-house rather  than purchasing such systems  from
independent  software vendors such  as the Company.  Many of these organizations
have substantial internal programming resources  with the capability to  develop
specific  products  for  their  needs.  The  Company  also  competes  with other
independent  software  vendors,  including  Integrated  Systems,  Inc.,   Mentor
Graphics, Inc. (through acquisition of Microtec/Ready Sytems), Microware Systems
Corporation  and JavaSoft,  a division  of Sun  Microsystems, Inc.  In addition,
hardware or other software vendors could seek to expand their product  offerings
by designing and selling products that directly compete with or adversely affect
sales  of the Company's  products. Many of the  Company's existing and potential
competitors have substantially greater financial, technical, marketing and sales
resources than the Company. In addition, the Company is aware of ongoing efforts
by competitors to  emulate the  performance and functionality  of the  Company's
products  and  there  can be  no  assurance  that competitors  will  not develop
equivalent or superior technology to that of the Company. Because a  substantial
percentage of the Company's revenues have been derived from sales of the TORNADO
and VXWORKS family of products and services, the effects of competition could be
more  adverse  than would  be  the case  if the  Company  had a  broader product
offering. In addition, competitive pressures  could cause the Company to  reduce
the  prices of its products, which would result in reduced profit margins. There
can be no assurance that the Company will be able to compete effectively against
its current  and  future  competitors.  If the  Company  is  unable  to  compete
successfully,  its business, financial condition and results of operations would
be materially and adversely affected.
    
 
   
    The Company believes that it competes favorably in its markets on the  basis
of    product   functionality,    price/performance   characteristics,   product
portability, ease of  use, sales  and marketing  strength, financial  stability,
support services and corporate reputation. See "Risk Factors--Competition."
    
 
PRODUCT DEVELOPMENT AND ENGINEERING
 
   
    Wind  River  believes that  its success  will  depend in  large part  on its
ability to maintain and enhance its current product line, develop new  products,
maintain  technological  competitiveness  and meet  an  ever-expanding  range of
customer requirements. The Company's  product development and engineering  group
includes  63 full-time  employees. During  fiscal 1994,  1995 and  1996, product
development and engineering expenses  were $4.2 million,  $4.7 million and  $5.5
million,   respectively,  excluding  capitalized   software  development  costs.
Capitalized software development costs for these periods were $426,000, $506,000
and $490,000, respectively.  The Company  anticipates that it  will continue  to
commit substantial resources to research and product development in the future.
    
 
                                       21
<PAGE>
    The   embedded  real-time  software  industry   faces  a  fragmented  market
characterized by ongoing technological developments, evolving industry standards
and rapid changes in  customer requirements. The  Company's success depends  and
will continue to depend upon its ability to continue to develop and introduce in
a  timely manner new products that  take advantage of technological advances, to
identify  and  adhere  to  emerging  standards,  to  continue  to  improve   the
functionality  of its  TORNADO development  environment and  the scalability and
functionality of the VXWORKS product, to offer its products across a spectrum of
microprocessor families  used in  the  embedded systems  market and  to  respond
promptly  to  customers'  requirements.  The  Company  has  from  time  to  time
experienced delays in  the development of  new products and  the enhancement  of
existing  products. Such delays are commonplace  in the software industry. There
can be  no assurance  that the  Company  will be  successful in  developing  and
marketing,   on  a  timely  basis  or  at  all,  competitive  products,  product
enhancements and new products that  respond to technological change, changes  in
customer  requirements and  emerging industry  standards, or  that the Company's
enhanced or  new products  will adequately  address the  changing needs  of  the
marketplace.
 
    As  a result of  their complexity, software  products may contain undetected
errors or compatibility  issues, particularly  when first introduced  or as  new
versions  are released. There can  be no assurance that,  despite testing by the
Company and testing and use by current and potential customers, errors will  not
be  found  in  new  products after  commencement  of  commercial  shipments. The
occurrence of such errors could result in loss of or delay in market  acceptance
of  the Company's products,  which could have  a material adverse  effect on the
Company's  business,  financial  condition   and  results  of  operations.   The
increasing  use  of  the Company's  products  for applications  in  systems that
interact  directly  with  the  general  public,  particularly  applications   in
transportation,  medical  systems and  other markets  where  the failure  of the
embedded system  could cause  substantial property  damage or  personal  injury,
could  expose the Company to significant  product liability claims. In addition,
the Company's products may be used for applications in mission-critical business
systems where the failure of the embedded system could be linked to  substantial
economic  loss. See  "Risk Factors--Risk of  Product Defects;  Product and Other
Liability" and "--Rapid Technological Change; Dependence on New Products."
 
PROPRIETARY RIGHTS
    The Company's success is heavily dependent upon its proprietary  technology.
To  protect  its proprietary  rights,  the Company  relies  on a  combination of
copyright, trade  secret, patent  and trademark  laws, nondisclosure  and  other
contractual  restrictions on  copying, distribution and  technical measures. The
Company seeks to protect its software, documentation and other written materials
through trade secret and copyright laws, which provide only limited  protection.
In  addition, the  Company has  two United  States patent  applications pending.
There can be  no assurance that  patents will issue  from the Company's  pending
applications  or that any claims allowed will be of sufficient scope or strength
(or be issued  in all countries  where the  Company's products can  be sold)  to
provide  meaningful protection  or any commercial  advantage to  the Company. As
part of  its  confidentiality  procedures, the  Company  generally  enters  into
nondisclosure  agreements  with  its  employees,  consultants,  distributors and
corporate partners  and  limits access  to  and distribution  of  its  software,
documentation  and  other  proprietary  information. End  user  licenses  of the
Company's software are frequently in the form of shrink wrap license agreements,
which are not signed by licensees, and therefore may be unenforceable under  the
laws  of  many  jurisdictions.  Despite the  Company's  efforts  to  protect its
proprietary rights, it may  be possible for unauthorized  third parties to  copy
the Company's products or to reverse engineer or obtain and use information that
the Company regards as proprietary. There can be no assurance that the Company's
competitors  will not independently develop  technologies that are substantially
equivalent or superior to the Company's technologies. Policing unauthorized  use
of  the Company's  products is  difficult, and  while the  Company is  unable to
determine the extent to which software  piracy of its products exists,  software
piracy  can  be expected  to  be a  persistent  problem. In  addition, effective
protection of  intellectual property  rights may  be unavailable  or limited  in
certain countries. The status of United States patent protection in the software
industry  is not well  defined and will  evolve as the  United States Patent and
Trademark Office  grants  additional  patents.  Patents  have  been  granted  on
fundamental  technologies  in software,  and patents  may  issue that  relate to
fundamental technologies incorporated
 
                                       22
<PAGE>
into the Company's products. Wind River believes that, due to the rapid pace  of
innovation  within its industry, factors such  as the technological and creative
skills of its  personnel are more  important to establishing  and maintaining  a
technology  leadership position within  the industry than  are the various legal
protections of its technology.
 
    As the  number of  patents, copyrights,  trademarks and  other  intellectual
property  rights  in the  Company's industry  increases,  products based  on its
technology may increasingly become the subject of infringement claims. There can
be no assurance that third parties  will not assert infringement claims  against
the  Company in the future. Any such claims  with or without merit could be time
consuming, result in costly litigation, cause product shipment delays or require
the Company  to enter  into royalty  or licensing  agreements. Such  royalty  or
licensing  agreements, if required, may not  be available on terms acceptable to
the Company,  or at  all, which  could have  a material  adverse effect  on  the
Company's  business, financial condition and results of operations. In addition,
the Company  may  initiate  claims  or  litigation  against  third  parties  for
infringement of the Company's proprietary rights or to establish the validity of
the  Company's proprietary rights.  Litigation to determine  the validity of any
claims, whether or not  such litigation is determined  in favor of the  Company,
could result in significant expense to the Company and divert the efforts of the
Company's technical and management personnel from productive tasks. In the event
of  an adverse ruling in  any such litigation, the  Company might be required to
pay substantial damages, discontinue  the use and  sale of infringing  products,
expend  significant  resources to  develop  non-infringing technology  or obtain
licenses to  infringing technology.  See  "Risk Factors--Limited  Protection  of
Proprietary Technology."
 
EMPLOYEES
    The Company has 208 employees, including 112 in sales, marketing and support
activities,  63 in  product development  and engineering  and 33  in management,
operations, finance and administration. Of these employees, 170 were located  in
North  America  and  38 were  located  outside  of North  America.  None  of the
Company's employees  is  represented  by  a  labor union  or  is  subject  to  a
collective  bargaining  agreement.  Wind  River  has  never  experienced  a work
stoppage. See "Risk Factors--Management of Growth; Dependence on Key  Personnel;
Need for Additional Personnel."
 
                                       23
<PAGE>
                                   MANAGEMENT
 
EXECUTIVE OFFICERS AND DIRECTORS
 
    Set forth below is information regarding directors and executive officers of
the Company.
 
<TABLE>
<CAPTION>
NAME                          AGE      POSITION WITH THE COMPANY
- ------------------------      ---      ----------------------------------------------------------
<S>                       <C>          <C>
Jerry L. Fiddler                  44   Chairman of the Board
Ronald A. Abelmann                58   President and Chief Executive Officer and Director
David N. Wilner                   42   Chief Technical Officer and Director
Robert L. Wheaton                 49   Senior Vice President of Sales
David G. Fraser                   32   Vice President of Engineering
Richard W. Kraber                 55   Vice President of Finance, Chief Financial Officer and
                                         Secretary
David Larrimore                   44   Vice President of Marketing
Graham Shenton                    56   Managing Director of European Operations
William B. Elmore(1)              43   Director
David B. Pratt(1)                 56   Director
</TABLE>
 
- ------------
(1)  Member of the Audit Committee and Compensation Committee
 
    MR. FIDDLER co-founded the Company in February 1983, and currently serves as
Chairman of the Board. From February 1983 to March 1994, he also served as Chief
Executive  Officer  of the  Company. Prior  to  founding the  Company, he  was a
computer  scientist  in  the  Real-Time  Systems  Group  at  Lawrence   Berkeley
Laboratory.  Mr. Fiddler holds  a B.A. in  music and photography  and an M.S. in
computer science from the University of Illinois.
 
    MR. ABELMANN joined the  Company in March 1994  as Chief Executive  Officer,
President  and Director.  From 1987  to 1993,  he served  as the  founding Chief
Executive Officer  of  Vantage  Analysis  Systems,  a  developer  of  VHDL-based
simulation  software for  design automation. Prior  to then, he  served as Group
Vice President  and  General  Manager  for the  Instrument  Division  of  Varian
Associates. Mr. Abelmann holds B.S. and M.S. degrees in applied physics from the
University of California at Los Angeles, and an M.B.A. from Stanford University.
 
    MR.  WILNER co-founded the Company in  February 1983 and currently serves as
Chief Technical Officer and a Director. Prior to founding the Company, he was  a
senior  staff  scientist in  the Real-Time  Systems  Group at  Lawrence Berkeley
Laboratory. Mr. Wilner holds a B.S.  in computer science from the University  of
California at Berkeley.
 
    MR.  WHEATON joined the Company in March 1992 and currently serves as Senior
Vice President of Sales.  From 1989 to  1991, he served  as the Vice  President,
Marketing  of ShareBase Corporation, a relational database hardware and software
company. From  1988  to 1989,  he  served as  the  Western Regional  Manager  of
Powersoft  Corporation, a computer software company. Mr. Wheaton holds a B.S. in
automotive engineering from Western Michigan University.
 
    MR. FRASER joined the Company in September 1991 and currently serves as Vice
President of Engineering. From  1988 to 1991, he  served as a product  marketing
manager  at Unisys/Convergent. From 1985 to 1988,  he was a software engineer at
Hewlett-Packard in England. Mr.  Fraser holds a B.S.  in computing science  from
Glasgow University, Scotland.
 
    MR.  KRABER joined the company  in August 1995 and  currently serves as Vice
President of Finance and Chief Financial  Officer. From 1991 to 1995, he  served
as  Chief Operating Officer and Chief Financial Officer of Peerless Lighting, an
industrial lighting  products company.  Prior to  then, he  was Chief  Financial
Officer for GardenAmerica and a consultant and engagement manager for McKinsey &
Company.  Mr. Kraber has a  B.S. in mathematics from  Stanford University and an
M.B.A. from Harvard University.
 
                                       24
<PAGE>
    MR. LARRIMORE joined the  company in May 1995  and currently serves as  Vice
President  of Marketing. From 1991  to 1995, he was  Vice President of Marketing
for Destiny Technology, a  computer software company. Prior  to then, he held  a
consulting  position with McKinsey & Company  and a management position with Dow
Chemical. Mr. Larrimore holds  a B.S. in chemical  engineering from the  Georgia
Institute of Technology and an M.B.A from Stanford University.
 
    MR. SHENTON joined the Company in July 1994 and currently serves as Managing
Director of European Operations. From 1990 until the date he joined the Company,
he  was Managing Director of Vantage  Analysis Systems Europe, Ltd., a developer
of VHDL-based simulation software for design  automation. From 1986 to 1989,  he
was   Managing  Director  of  IMP  Europe,  Ltd.,  a  semiconductor  design  and
application firm.  Mr.  Shenton holds  a  B.E. degree  from  Sydney  University,
Australia and an M.E. degree from the University of New South Wales, Australia.
 
    MR.  ELMORE became a director of the Company in August 1990. He is currently
a general partner of Foundation Capital, a venture capital investment firm. From
1987 to 1995,  he was a  general partner of  Inman & Bowman  and Inman &  Bowman
Entrepreneurs,  venture capital investment firms. Mr. Elmore holds a B.S. and an
M.S. in  electrical  engineering  from  Purdue University  and  an  M.B.A.  from
Stanford  University. Mr. Elmore  currently serves on the  board of directors of
ParcPlace--Digitalk, Inc.
 
    MR. PRATT became a  director of the  Company in April 1995.  He has been  an
officer  of Adobe Systems Incorporated, a developer of software for printing and
publishing, since  1988. He  is  currently a  Senior  Vice President  and  Chief
Operating  Officer at Adobe. From 1987 to  1988, he was Executive Vice President
and Chief Operating Officer of Logitech  Corporation. From 1986 to 1987, he  was
Senior  Vice President and  Chief Operating Officer  of Quantum Corporation. Mr.
Pratt holds a B.S.E.E. degree from the Massachusetts Institute of Technology and
an M.B.A. from  the University  of Chicago. Mr.  Pratt currently  serves on  the
board of directors of Radius, Inc.
 
                                       25
<PAGE>
                       PRINCIPAL AND SELLING STOCKHOLDERS
 
    The  following table sets forth  certain information regarding the ownership
of the Company's Common Stock as of May 31, 1996 by (i) each person known to the
Company to own  beneficially more than  5% of the  Company's Common Stock;  (ii)
each  director and executive officer; (iii) all directors and executive officers
as a group; and (iv) other Selling Stockholders.
   
<TABLE>
<CAPTION>
                                                     SHARES BENEFICIALLY                    SHARES BENEFICIALLY
                                                        OWNED PRIOR TO                          OWNED AFTER
                                                         OFFERING(1)           SHARES          OFFERING(1)(2)
                                                   ------------------------     BEING     ------------------------
BENEFICIAL OWNERS                                    NUMBER       PERCENT      OFFERED      NUMBER       PERCENT
- -------------------------------------------------  -----------  -----------  -----------  -----------  -----------
<S>                                                <C>          <C>          <C>          <C>          <C>
Jerry L. Fiddler(3)..............................    2,706,831      19.49%       900,000    1,806,831      11.63%
David N. Wilner(4)...............................    1,932,093      13.91        500,000    1,432,093       9.22
Ronald A. Abelmann(5)............................      269,459       1.91             --      269,459       1.71
William B. Elmore(6).............................      133,164       *                --      133,164       *
Robert L. Wheaton(7).............................      107,801       *                --      107,801       *
Graham Shenton(8)................................       83,018       *                --       83,018       *
David G. Fraser(9)...............................       60,895       *                --       60,985       *
David Larrimore(10)..............................       32,657       *                --       32,657       *
David Pratt(11)..................................        5,250       *                --        5,250       *
Richard W. Kraber................................           --         --             --           --         --
All officers and directors as a group (10
 persons)(12)....................................    5,331,168      37.03      1,400,000    3,931,168      24.50
 
<CAPTION>
 
OTHER SELLING STOCKHOLDERS
- -------------------------------------------------
<S>                                                <C>          <C>          <C>          <C>          <C>
Robert Fiddler, Custodian for Eli Fiddler UGMA...       60,000       *            60,000           --         --
Robert Fiddler, Custodian for Asher Fiddler
 UGMA............................................       60,000       *            60,000           --         --
Robert Fiddler, Trustee of the
 Fiddler/Alden Childrens' Trust..................      300,000       2.16        130,000      170,000       1.09
</TABLE>
    
 
- ------------
   
 * Less than 1%.
    
   
 (1) This table is based upon  information supplied by officers, directors,  and
    principal  and  selling  stockholders.  Unless  otherwise  indicated  in the
    footnotes to  this  table  and  subject to  community  property  laws  where
    applicable, each of the stockholders named in this table has sole voting and
    investment power with respect to the shares indicated as beneficially owned.
    Applicable percentages are based on 13,883,053 shares outstanding on May 31,
    1996, adjusted as required by rules promulgated by the Commission.
    
   
 (2) Adjusted to reflect the sale of 1,650,000 shares by the Company hereby.
    
   
 (3)  Includes 2,700,738 shares held  by Mr. Fiddler and  his spouse, Melissa K.
    Alden, trustees  of the  The Fiddler  and Alden  Family Trust  (the  "Family
    Trust") and 6,093 shares subject to stock options exercisable within 60 days
    of  May 31, 1996 held  by Mr. Fiddler. Of  the 900,000 shares being offered,
    725,000 will be sold by Mr. Fiddler and Ms. Alden as Trustees of the  Family
    Trust.  It  is intended  that, prior  to the  consummation of  the offering,
    175,000 of the shares held in the  Family Trust will be donated to Jerry  L.
    Fiddler  and Melissa K. Alden, as Trustees  of the Fiddler and Alden 1996 CR
    Trust (the "Charitable Trust.") Such shares will be sold by such Trustees as
    selling stockholders in the offering.  Upon completion of the offering,  the
    Family  Trust will hold 1,800,738 shares  and the Charitable Trust will hold
    no shares. Mr. Fiddler is Chairman of the Board of the Company.
    
   
 (4) Includes 172,500 shares  held in trust for  Mr. Wilner's minor child.  Also
    includes 6,093 shares subject to stock options exercisable within 60 days of
    May  31, 1996. Mr. Wilner  is Chief Technical Officer  and a Director of the
    Company.
    
   
 (5) Includes 238,439 shares subject to stock options exercisable within 60 days
    of May 31, 1996.
    
   
 (6) Includes 3,750 shares subject to  stock options exercisable within 60  days
    of May 31, 1996.
    
   
 (7) Includes 107,801 shares subject to stock options exercisable within 60 days
    of May 31, 1996.
    
   
 (8)  Includes 59,556 shares subject to stock options exercisable within 60 days
    of May 31, 1996.
    
   
 (9) Includes 56,993 shares subject to stock options exercisable within 60  days
    of May 31, 1996.
    
   
(10)  Includes 30,624 shares subject to stock options exercisable within 60 days
    of May 31, 1996.
    
   
(11) Includes 3,750 shares subject to  stock options exercisable within 60  days
    of May 31, 1996.
    
   
(12)  Includes  513,099 shares  subject to  stock options  held by  officers and
    directors exercisable within 60 days of May 31, 1996.
    
 
                                       26
<PAGE>
                                  UNDERWRITING
 
   
    The U.S. Underwriters  named below, for  whom Deutsche Morgan  Grenfell/C.J.
Lawrence  Inc., Hambrecht & Quist LLC, UBS  Securities LLC and Wessels, Arnold &
Henderson, L.L.C. are  acting as representatives  (the "U.S.  Representatives"),
and  the International Underwriters named below, for whom Morgan Grenfell & Co.,
Limited, Hambrecht &  Quist LLC, UBS  Limited and Wessels,  Arnold &  Henderson,
L.L.C.  are acting as representatives (the "International Representatives") have
severally  agreed,  subject  to  the  terms  and  conditions  contained  in  the
Underwriting  Agreement  (the  form of  which  is  filed as  an  exhibit  to the
Company's Registration  Statement,  of which  this  Prospectus is  a  part),  to
purchase  from the Company and the Selling Stockholders the respective number of
shares of  Common Stock  indicated below  opposite their  respective names.  The
Underwriters are committed to purchase all of the shares, if they purchase any.
    
   
<TABLE>
<CAPTION>
                                                                                              NUMBER OF
U.S. UNDERWRITERS                                                                              SHARES
- -------------------------------------------------------------------------------------------  -----------
<S>                                                                                          <C>
Deutsche Morgan Grenfell/C. J. Lawrence Inc................................................
Hambrecht & Quist LLC......................................................................
UBS Securities LLC.........................................................................
Wessels, Arnold & Henderson, L.L.C. .......................................................
 
                                                                                             -----------
    Subtotal...............................................................................    2,475,000
                                                                                             -----------
 
<CAPTION>
 
INTERNATIONAL UNDERWRITERS
- -------------------------------------------------------------------------------------------
<S>                                                                                          <C>
Morgan Grenfell & Co., Limited.............................................................
Hambrecht & Quist LLC......................................................................
UBS Limited................................................................................
Wessels, Arnold & Henderson, L.L.C.........................................................
 
                                                                                             -----------
    Subtotal...............................................................................      825,000
                                                                                             -----------
    Total..................................................................................    3,300,000
                                                                                             -----------
                                                                                             -----------
</TABLE>
    
 
    The  Underwriting  Agreement provides  that the  obligations of  the several
Underwriters thereunder  are subject  to approval  of certain  legal matters  by
counsel and to various other conditions.
 
   
    The  U.S. Underwriters and the  International Underwriters have entered into
an Intersyndicate Agreement (the  "Intersyndicate Agreement") that provides  for
the  coordination of their activities. Pursuant to the Intersyndicate Agreement,
sales  may  be  made  between  the  U.S.  Underwriters  and  the   International
Underwriters of such number of shares of Common Stock as may be mutually agreed.
The  price of any  shares of Common Stock  so sold shall  be the public offering
price, less an amount not greater than the selling concession.
    
 
    Under  the  terms  of   the  Intersyndicate  Agreement,  the   International
Underwriters  and any dealer to  whom they sell shares  of Common Stock will not
offer to sell or sell  shares of Common Stock to  persons who are United  States
persons  or to persons they  believe intend to resell  to persons who are United
 
                                       27
<PAGE>
   
States persons,  and the  U.S. Underwriters  and any  dealer to  whom they  sell
shares  of Common Stock will not offer to sell or sell shares of Common Stock to
any non-United States  person or  to persons they  believe intend  to resell  to
non-United  States persons, except,  in each case,  for transactions pursuant to
such agreement. As  used herein, "United  States person" means  any national  or
resident  of the  United States or  any corporation,  pension, profit-sharing or
other trust or other entity organized under the laws of the United States or  of
any  political subdivision thereof  (other than a branch  located outside of the
United States of any United States person) and includes any United States branch
of a person  who is otherwise  not a  United States person  and "United  States"
means  the United  States of America,  its territories, its  possessions and all
areas subject to its jurisdiction.
    
 
   
    The Underwriters propose  to offer  the Common Stock  to the  public on  the
terms  set forth on the  cover page of this Prospectus.  The Price to Public and
Underwriting Discount will be identical in the U.S. and International Offerings.
The  Underwriters  may  allow   to  selected  dealers   (who  may  include   the
Underwriters) a concession of not more than $    per share. The selected dealers
may  reallow a concession of not more than $     to certain other dealers. After
the public offering, the price and concessions and re-allowances to dealers  and
other  selling terms  may be  changed by the  Underwriters. The  Common Stock is
offered subject to receipt  and acceptance by the  Underwriters, and to  certain
other  conditions, including the right to reject orders in whole or in part. The
Underwriters do not intend  to sell any  of the shares  of Common Stock  offered
hereby to accounts over which they exercise discretionary authority.
    
 
    The  Company has granted an  option to the Underwriters  to purchase up to a
maximum of 495,000 additional shares  of Common Stock to cover  over-allotments,
if  any, at the public offering price,  less the underwriting discount set forth
on the cover page of this Prospectus.  Such option may be exercised at any  time
until  30 days after the  date of the Underwriting  Agreement. To the extent the
Underwriters exercise this option, each  of the Underwriters will be  committed,
subject   to  certain  conditions,   to  purchase  such   additional  shares  in
approximately the  same  proportion  as  set  forth  in  the  above  table.  The
Underwriters  may purchase  such shares  only to  cover over-allotments  made in
connection with the Offering.
 
   
    Pursuant to the Intersyndicate Agreement, each International Underwriter has
represented and agreed that it  has not offered or sold,  and has agreed not  to
offer  or sell, any shares of Common Stock, directly or indirectly, in Canada in
contravention of the  securities laws  of Canada  or any  province or  territory
thereof  and has represented that any offer  of shares of Common Stock in Canada
will be  made only  pursuant to  an exemption  from the  requirement to  file  a
prospectus  in the province or territory of  Canada in which such offer is made.
Each International Underwriter  has further  agreed to  send to  any dealer  who
purchases from it any shares of Common Stock a notice stating in substance that,
by  purchasing such  shares such  dealer represents and  agrees that  it has not
offered or sold, and will not offer or sell, directly or indirectly, any of such
shares in  Canada or  to, or  for  the benefit  of, any  resident of  Canada  in
contravention  of the  securities laws  of Canada  or any  province or territory
thereof and that any offer of shares of Common Stock in Canada will be made only
pursuant to  an exemption  from the  requirement  to file  a prospectus  in  the
province  or territory  of Canada  in which  such offer  is made,  and that such
dealer will deliver to any other dealer to  whom it sells any of such shares  of
Common Stock a notice to the foregoing effect.
    
 
   
    Pursuant to the Intersyndicate Agreement, each International Underwriter has
represented and agreed that (i) it has not offered or sold and will not offer or
sell  any shares of Common Stock offered hereby to persons in the United Kingdom
except to persons whose ordinary activities involve them in acquiring,  holding,
managing  or disposing of investments (as principal or agent) for the purpose of
their business or otherwise  in circumstances which have  not resulted and  will
not result in an offer to the public in the United Kingdom within the meaning of
the  Public Offers of  Securities Regulations 1995  (the "Regulations"), (ii) it
has complied and  will comply with  all applicable provisions  of the  Financial
Services  Act 1986 and  the Regulations with  respect to anything  done by it in
relation to the  shares of  Common Stock offered  hereby in,  from or  otherwise
involving the United Kingdom, and (iii) it has only issued or passed on and will
only  issue  or  pass  on to  any  person  in the  United  Kingdom  any document
    
 
                                       28
<PAGE>
received by  it in  connection with  the issue  of the  shares of  Common  Stock
offered  hereby  if that  person is  a kind  described in  Article 11(3)  of the
Financial Services Act 1986 (Investment Advertisements) (Exemptions) Order  1995
or  is a person to whom such document may otherwise lawfully be issued or passed
on.
 
   
    Pursuant to the Intersyndicate Agreement, each International Underwriter has
represented and agreed that it  has not offered or sold,  and will not offer  or
sell,  directly or indirectly, in Japan or to or for the account or any resident
thereof, any shares of Common Stock  acquired in connection with this  offering,
except for offers or sales to Japanese International Underwriters or dealers and
except  pursuant  to  any  exemption  from  the  regulation  requirement  of the
Securities and Exchange Law of Japan. Each International Underwriter has further
agreed to send to any dealer who purchases from it any of such shares of  Common
Stock  a notice stating in substance that such  dealer may not offer or sell any
of such shares, directly or indirectly, in Japan or to or for the account of any
resident thereof,  except  pursuant  to  any  exemption  from  the  registration
requirement  of the Securities and  Exchange Law of Japan,  and that such dealer
will send to  any other  dealer to  whom it  sells any  shares a  notice to  the
foregoing effect.
    
 
   
    Pursuant to the Intersyndicate Agreement, each International Underwriter has
represented  and agreed that it has not offered  or sold, and will not offer and
sell, directly or indirectly, or offer or sell to any person for re-offering  or
resale, directly or indirectly any shares of Common Stock to any resident of the
Republic  of Korea (as the term is defined under the Foreign Exchange Management
Law of the Republic of Korea), or  in the Republic of Korea, except pursuant  to
applicable laws and regulations of the Republic of Korea.
    
 
    The  Underwriting  Agreement  provides  that  the  Company  and  the Selling
Stockholders will indemnify the several Underwriters against certain liabilities
including civil liabilities  under the Securities  Act of 1933,  as amended,  or
will  contribute to payments the Underwriters may be required to make in respect
thereof.
 
   
    In connection  with the  Offering,  the Company  and,  except for  Jerry  L.
Fiddler  and  David N.  Wilner, each  of the  Company's directors  and executive
officers have agreed not to  offer, sell or otherwise  dispose of any shares  of
Common  Stock for a period of  90 days after the later  of: (i) the date of this
Prospectus; or (ii) the first date on  which shares of Common Stock are  offered
hereby  to  the public,  without the  prior written  consent of  Deutsche Morgan
Grenfell/C.J. Lawrence Inc.  Messrs. Fiddler  and Wilner and  the other  Selling
Stockholders  have agreed not to offer, sell  or otherwise dispose of any shares
of Common Stock for a period of 120 days after the later of (i) the date of this
Prospectus or (ii) the first  date on which shares  of Common Stock are  offered
hereby  to  the public,  without the  prior written  consent of  Deutsche Morgan
Grenfell/C.J. Lawrence Inc.
    
 
   
    Pursuant  to  regulations  promulgated   by  the  Securities  and   Exchange
Commission,   market  makers  in  the  Common  Stock  who  are  Underwriters  or
prospective underwriters  ("passive  market  makers") may,  subject  to  certain
limitations,  make bids  for or  purchases of shares  of Common  Stock until the
earlier of the time of commencement (the "Commencement Date") of offers or sales
of the Common  Stock contemplated  by this  Prospectus or  the time  at which  a
stabilizing  bid for such shares is made. In  general, on and after the date two
business days prior to the Commencement Date (i) such passive market maker's net
daily purchases of  the Common Stock  may not  exceed 30% of  its average  daily
trading  volume  in such  stock  for the  two  full consecutive  calendar months
immediately preceding the  filing date  of the Registration  Statement of  which
this  Prospectus forms  a part,  (ii) such passive  market maker  may not effect
transactions in, or display bids for, the  Common Stock at a price that  exceeds
the  highest bid  for the  Common Stock  by persons  who are  not passive market
makers and (iii) bids made by passive market makers must be identified as such.
    
 
                                       29
<PAGE>
                                 LEGAL MATTERS
 
   
    The validity of the  issuance of the shares  of Common Stock offered  hereby
will  be passed  upon for  the Company  and the  Selling Stockholders  by Cooley
Godward Castro Huddleson & Tatum,  Palo Alto, California. Certain legal  matters
in  connection with this  offering will be  passed upon for  the Underwriters by
Venture Law Group, A Professional Corporation, Menlo Park, California.
    
 
                                    EXPERTS
 
   
    The consolidated  financial statements  incorporated in  this Prospectus  by
reference  to the  Annual Report on  Form 10-K  of Wind River  Systems, Inc., as
amended by the Form 10-K/A,  for the year ended January  31, 1996, have been  so
incorporated  in reliance  on the  report of  Price Waterhouse  LLP, independent
accountants, given on  the authority  of said firm  as experts  in auditing  and
accounting.
    
 
                             ADDITIONAL INFORMATION
 
   
    A  registration  statement on  Form  S-3 with  respect  to the  Common Stock
offered hereby (the "Registration Statement") has been filed with the Commission
under the Act. This Prospectus does not contain all of the information contained
in such Registration Statement and  the exhibits and schedules thereto,  certain
portions of which have been omitted pursuant to the rules and regulations of the
Commission.  For further information with respect  to the Company and the Common
Stock offered hereby, reference  is made to the  Registration Statement and  the
exhibits   and  schedules  thereto.  Statements  contained  in  this  Prospectus
regarding the contents of any contract or any other document are not necessarily
complete and, in each  instance, reference is  hereby made to  the copy of  such
contract  or document  filed as  an exhibit  to the  Registration Statement. The
Registration Statement,  including exhibits  thereto, may  be inspected  without
charge   at  the  Securities  and  Exchange  Commission's  principal  office  in
Washington, D.C., and copies of all or any part thereof may be obtained from the
Public Reference Section, Securities and Exchange Commission, Washington,  D.C.,
20549, upon payment of the prescribed fees.
    
 
                                       30
<PAGE>
NO  DEALER,  SALESPERSON OR  OTHER INDIVIDUAL  HAS BEEN  AUTHORIZED TO  GIVE ANY
INFORMATION OR  MAKE ANY  REPRESENTATIONS NOT  CONTAINED IN  THIS PROSPECTUS  IN
CONNECTION  WITH THE OFFERING COVERED BY THIS PROSPECTUS. IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
BY THE COMPANY OR THE UNDERWRITERS. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER
TO SELL,  OR A  SOLICITATION  OF ANY  OFFER  TO BUY,  THE  COMMON STOCK  IN  ANY
JURISDICTION  WHERE, OR TO ANY PERSON TO WHOM, IT IS UNLAWFUL TO MAKE SUCH OFFER
OR SOLICITATION.  NEITHER THE  DELIVERY OF  THIS PROSPECTUS  NOR ANY  SALE  MADE
HEREUNDER  SHALL, UNDER ANY CIRCUMSTANCES, CREATE  AN IMPLICATION THAT THERE HAS
NOT BEEN ANY CHANGE IN THE FACTS SET FORTH IN THIS PROSPECTUS OR IN THE  AFFAIRS
OF THE COMPANY SINCE THE DATE HEREOF.
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Available Information.....................................................     2
Incorporation of Certain Documents by Reference...........................     2
Prospectus Summary........................................................     3
The Company...............................................................     4
Risk Factors..............................................................     5
Use of Proceeds...........................................................    11
Price Range of Common Stock and Dividend Policy...........................    11
Capitalization............................................................    12
Selected Consolidated Financial Data......................................    13
Business..................................................................    15
Management................................................................    24
Principal and Selling Stockholders........................................    26
Underwriting..............................................................    27
Legal Matters.............................................................    30
Experts...................................................................    30
Additional Information....................................................    30
</TABLE>
    
 
             [LOGO]
 
3,300,000 SHARES
 
COMMON STOCK
 
DEUTSCHE MORGAN GRENFELL
 
HAMBRECHT & QUIST
 
   
UBS SECURITIES
    
 
WESSELS, ARNOLD & HENDERSON
 
PROSPECTUS
 
             , 1996
<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.
<PAGE>
   
  SUBJECT TO COMPLETION, DATED JUNE 19, 1996
    
 
               [LOGO]
 3,300,000 SHARES
 COMMON STOCK
 
  Of the 3,300,000  shares of  Common Stock,  $.001 par  value, offered  hereby,
  825,000  shares are  being offered  initially outside  the United  States (the
  "International Offering")  by  the International  Underwriters  and  2,475,000
  shares  are being offered initially in  the United States (the "U.S. Offering"
  and together  with the  International Offering,  the "Offering")  by the  U.S.
  Underwriters    (together   with    the   International    Underwriters,   the
  "Underwriters"). See "Underwriting." Of  the shares offered hereby,  1,650,000
  shares  are  being sold  by  Wind River  Systems,  Inc. ("Wind  River"  or the
  "Company"), and 1,650,000 shares are being sold by certain stockholders of the
  Company (the "Selling Stockholders"). The Company will not receive any of  the
  proceeds  from the sale of shares  by the Selling Stockholders. See "Principal
  and Selling Stockholders."
 
   
  The Company's Common Stock is traded  on the Nasdaq National Market under  the
  symbol  "WIND."  On  June 14,  1996,  the  last reported  sales  price  of the
  Company's Common Stock on the Nasdaq National Market was $30.50 per share. See
  "Price Range of Common Stock and Dividend Policy."
    
 
  FOR INFORMATION  CONCERNING  CERTAIN FACTORS  WHICH  SHOULD BE  CONSIDERED  BY
  PROSPECTIVE INVESTORS, SEE "RISK FACTORS" COMMENCING ON PAGE 5.
 
  THESE  SECURITIES HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE  COMMISSION
  OR  ANY STATE  SECURITIES COMMISSION PASSED  UPON THE ACCURACY  OR ADEQUACY OF
  THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<S>                      <C>               <C>               <C>               <C>
                                           UNDERWRITING                        PROCEEDS
                         PRICE             DISCOUNTS AND     PROCEEDS TO       TO SELLING
                         TO PUBLIC         COMMISSIONS(1)    COMPANY(2)        STOCKHOLDERS
Per Share                $                 $                 $                 $
Total(3)                 $                 $                 $                 $
</TABLE>
 
   (1) The Company  and the Selling  Stockholders have agreed  to indemnify  the
      Underwriters  against certain liabilities, including liabilities under the
      Securities Act of 1933, as amended. See "Underwriting."
 
   (2) Before deducting expenses payable by the Company, estimated at $      .
 
   (3) The Company has granted the  Underwriters a 30-day option to purchase  up
      to   an  additional  495,000  shares  of  Common  Stock  solely  to  cover
      over-allotments. If  all such  shares are  purchased, the  total Price  to
      Public,  Underwriting Discounts  and Commissions, Proceeds  to Company and
      Proceeds to Selling Stockholders will be  $       , $       , $        and
      $      , respectively. See "Underwriting."
 
  The  shares of Common Stock are offered  by the Underwriters, subject to prior
  sale, when, as and if  delivered to and accepted by  them, and subject to  the
  approval of certain legal matters by counsel and certain other conditions. The
  Underwriters reserve the right to withdraw, cancel or modify such offer and to
  reject  orders in whole or in part. It is expected that delivery of the shares
  of Common Stock will be made in New York, New York against payment therefor on
  or about             , 1996.
 
 DEUTSCHE MORGAN GRENFELL
                    HAMBRECHT & QUIST
                                    UBS LIMITED
                                                     WESSELS, ARNOLD & HENDERSON
 
  The date of this Prospectus is             , 1996
<PAGE>
NO  DEALER,  SALESPERSON OR  OTHER INDIVIDUAL  HAS BEEN  AUTHORIZED TO  GIVE ANY
INFORMATION OR  MAKE ANY  REPRESENTATIONS NOT  CONTAINED IN  THIS PROSPECTUS  IN
CONNECTION  WITH THE OFFERING COVERED BY THIS PROSPECTUS. IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
BY THE COMPANY OR THE UNDERWRITERS. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER
TO SELL,  OR A  SOLICITATION  OF ANY  OFFER  TO BUY,  THE  COMMON STOCK  IN  ANY
JURISDICTION  WHERE, OR TO ANY PERSON TO WHOM, IT IS UNLAWFUL TO MAKE SUCH OFFER
OR SOLICITATION.  NEITHER THE  DELIVERY OF  THIS PROSPECTUS  NOR ANY  SALE  MADE
HEREUNDER  SHALL, UNDER ANY CIRCUMSTANCES, CREATE  AN IMPLICATION THAT THERE HAS
NOT BEEN ANY CHANGE IN THE FACTS SET FORTH IN THIS PROSPECTUS OR IN THE  AFFAIRS
OF THE COMPANY SINCE THE DATE HEREOF.
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Available Information.....................................................     2
Incorporation of Certain Documents by Reference...........................     2
Prospectus Summary........................................................     3
The Company...............................................................     4
Risk Factors..............................................................     5
Use of Proceeds...........................................................    11
Price Range of Common Stock and Dividend Policy...........................    11
Capitalization............................................................    12
Selected Consolidated Financial Data......................................    13
Business..................................................................    15
Management................................................................    24
Principal and Selling Stockholders........................................    26
Underwriting..............................................................    27
Legal Matters.............................................................    30
Experts...................................................................    30
Additional Information....................................................    30
</TABLE>
 
             [LOGO]
 
3,300,000 SHARES
 
COMMON STOCK
 
DEUTSCHE MORGAN GRENFELL
 
HAMBRECHT & QUIST
 
UBS LIMITED
 
WESSELS, ARNOLD & HENDERSON
 
PROSPECTUS
 
             , 1996


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission