<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM 10-K/A

/X/      Annual report pursuant to Section 13 or 15(d) of the Securities
         Exchange Act of 1934 for the fiscal year ended September 30, 1995

                                       OR

/ /      Transition report pursuant to Section 13 or 15(d) of the Securities 
         Exchange Act of 1934 for the transition period from ________ to _______

                         Commission File Number 0-11778

                          SEEQ TECHNOLOGY INCORPORATED
             (Exact name of registrant as specified in its charter)

       DELAWARE                                         94-2711298
(State of incorporation)                    (I.R.S. Employer Identification No.)

47200 Bayside Pkwy., Fremont, California                                 94538
(Address of principal executive offices)                              (Zip Code)

Registrant's telephone number, including area code  (510) 226-7400

Securities registered pursuant to Section 12(b) of the Act:  None

Securities registered pursuant to Section 12(g) of the Act:  Common Stock, 
$.01 par value

Indicate by check mark whether the registrant: (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. Yes  X    No
                                             -----    -----

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of the Registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of the Form 10-K or any
amendment to this Form 10-K. /X/

The aggregate market value of the voting stock held by non-affiliates of the
registrant, based upon the closing price of the Common Stock on December 15,
1995 as reported by Nasdaq, was approximately $123,718,815.

The number of outstanding shares of the registrant's Common Stock on December
15, 1995 was 29,992,440.

                       DOCUMENTS INCORPORATED BY REFERENCE

(1)      Proxy Statement for the 1996 Annual Meeting of Stockholders as filed
         with the Commission (the "Proxy Statement") - Part III, Items 10, 11,
         12 and 13.


<PAGE>   2




ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K.

(a) List the following documents filed as part of the report:

    3. Exhibits

3.1      Certificate of Incorporation (incorporated herein by reference to
         Registrant's Registration Statement on Form S-1 (Registration No.
         33-47985)).

3.2      Bylaws (incorporated herein by reference to Registrant's Registration
         Statement on Form S-1 (Registration No. 33-47985)).

4.1      Rights Agreement dated as of April 21, 1995 between the Company and
         American Stock Transfer and Trust Company, including exhibits thereto
         (incorporated herein by reference to Registrant's Form 8-A filed on May
         2, 1995).

10.1     Form of Indemnification Agreement with Directors and Officers
         (incorporated herein by reference to Registrant's Form 8-B filed on
         June 2, 1987).

10.2     Executive Compensation Plans and Arrangements

10.2.1   Restated Periodic Purchase Plan, as amended (incorporated herein by
         reference to Registrant's Annual Report on Form 10-K for the fiscal
         year ended September 30, 1991).

10.2.2   Notice of Periodic Purchase Plan Offerings (incorporated herein by
         reference to Registrant's Form S-8 Registration Statement (Registration
         No. 33-27419) filed on March 7, 1989).

10.2.3   Restated 1982 Stock Option Plan, as amended (incorporated herein by
         reference to Registrant's Form S-8 Registration Statement (Registration
         No. 33-6544) filed on July 2, 1993).

10.2.4   1989 Non-Employee Director Stock Option Plan (incorporated herein by
         reference to Registrant's Form S-8 Registration Statement (Registration
         No. 33-35838) filed on July 11, 1990).

10.2.5   Kodiak Technology Incorporated 1989 Stock Option Plan, and related
         Stock Option and Stock Purchase Agreements (incorporated herein by
         reference to Registrant's Annual Report on Form 10-K for the fiscal
         year ended September 30, 1989).

10.3     Build to Suit Lease dated as of October 15, 1982, as amended ("1982
         Lease"), between the Company and David W. Mariani Investment
         Partnership dba Mariani Financial Co. (incorporated herein by reference
         to Registrant's Annual Report on Form 10-K for the fiscal year ended
         September 30, 1986).


<PAGE>   3



10.4     Stock Purchase Agreement dated as of July 16, 1990 between the Company
         and Hualon Microelectronics Corporation (incorporated herein by
         reference to Registrant's Quarterly Report on Form 10-Q for the period
         ended June 30, 1990).

10.5*    Technology Transfer and Foundry Agreement dated as of July 16, 1990
         between the Company and Hualon Microelectronics Corporation (subject to
         confidential treatment) (incorporated herein by reference to
         Registrant's Quarterly Report on Form 10-Q for the period ended June
         30, 1990).

10.5.1*  Settlement Agreement, Release and Tolling Agreement dated as of August
         16, 1995 by and between the Company and Hualon Microelectronics
         Corporation (subject to confidential treatment).

10.5.2*  Amendment to Technology Transfer and Foundry Agreement dated August 16,
         1995 by and between the Company and Hualon Microelectronics Corporation
         (subject to confidential treatment).

10.6     Business Loan Agreement with Silicon Valley Bank and warrant issued
         pursuant thereto (incorporated herein by reference to Registrant's
         Annual Report on Form 10-K for the fiscal year ended September 30,
         1991).

10.7     Amendment to Business Loan Agreement with Silicon Valley Bank and
         warrant issued pursuant thereto (incorporated herein by reference to
         Registrant's Annual Report on Form 10-K for the fiscal year ended
         September 30, 1991).

10.8     Warrant Purchase Agreement dated as of August 2, 1991 with Silicon
         Valley Bank and warrant issued pursuant thereto (incorporated herein by
         reference to Registrant's Annual Report on Form 10-K for the fiscal
         year ended September 30, 1991).

10.9     Foundry Agreement dated as of November 15, 1991 between the Company and
         International Microelectronic Products Inc. (subject to request for
         confidential treatment) (incorporated herein by reference to
         Registrant's Annual Report on Form 10-K for the fiscal year ended
         September 30, 1991).

10.10    Loan and Security Agreement with CIT Group/Credit Finance, Inc. dated
         November 22, 1993 (incorporated by reference into the Registrant's
         Annual Report on Form 10-K for the fiscal year ended September 30,
         1993).

10.10.1  Agreement to Renew and Amend Loan and Security Agreement dated November
         22, 1995 between the Company and CIT Group/Credit Finance, Inc.

10.11    Warrant Agreement dated January 29, 1992 between the Company and
         certain stockholders (incorporated by reference herein to Registrant's
         Registration Statement on Form S-1 (Registration No. 33-64822)).


<PAGE>   4


10.12    Warrant Agreement dated April 27, 1993 between the Company and certain
         stockholders (incorporated by reference herein to Registrant's
         Registration Statement on Form S-1 (Registration No. 33-64822)).

10.13    Form of Warrant issued by the Company to certain stockholders on July
         30, 1993 (incorporated by reference herein to Registrant's Registration
         Statement on Form S-1 (Registration No. 33-64822)).

10.14    Stock Purchase Agreement and Exhibits thereto dated January 10, 1992
         between the Company and certain stockholders (incorporated by reference
         herein to Registrant's Registration Statement on Form S-1 (Registration
         No. 33-64822)).

10.15    Asset Purchase Agreement dated February 7, 1994 between the Company and
         Atmel Corporation (incorporated by reference to the Company's Form 8-K
         dated February 7, 1994).

10.16    Stock Purchase Agreement dated February 7, 1994 between the Company and
         Atmel Corporation (incorporated by reference to the Company's Form 8-K
         dated February 7, 1994).

10.17    Escrow Agreement dated February 7, 1994 between the Company, Atmel
         Corporation and Wilson, Sonsini, Goodrich & Rosati, P.C. (incorporated
         by reference to the Company's Form 8-K dated February 7, 1994).

10.18    Escrow Agreement dated April 14, 1994 between the Company, Atmel and
         Bank of America NT&SA (incorporated by reference to the Company's
         Quarterly Report on Form 10-Q for the fiscal quarter ended March 31,
         1994).

21.1     The Company has one subsidiary: Talus Technology Incorporated, a
         California Corporation.

23.1     Consent of Price Waterhouse LLP, Independent Accountants.

24.1     Power of Attorney. Reference is made to the Signature Page.

27.1     financial Data Schedule.

(b)  Reports on Form 8-K.  The Company did not file any Current Reports on 
     Form 8-K during the quarter ended September 30, 1995.


*  MATERIAL HAS BEEN OMITTED AND CONFIDENTIAL TREATMENT HAS BEEN REQUESTED FOR
   CERTAIN PORTIONS OF THE EXHIBIT. ALL SUCH OMITTED MATERIAL HAS BEEN FILED
   SEPARATELY WITH THE COMMISSION.

<PAGE>   5



         Pursuant to the requirements of Section 13 or 15(d) of the Securities
Act of 1934, the Registrant has duly caused this Amendment to the Form 10-K to
be signed on its behalf by the undersigned, thereto duly authorized.

                                            SEEQ TECHNOLOGY INCORPORATED


                                            By:/s/ Phillip J. Salsbury
                                               ---------------------------------
                                               Phillip J. Salsbury
                                               Chief Executive Officer

Dated:  March 6, 1996

         Pursuant to the requirements of the Securities Act of 1934, this
Amendment to the Form 10-K has been signed below by the following persons on
behalf of the Registrant and in the capacities and on the dates indicated.

<TABLE>
<CAPTION>
Signature                                Title                                                     Date
---------                                -----                                                     ----
<S>                                      <C>                                                  <C>
/s/ Phillip J. Salsbury                  Chief Executive Officer                              March 6, 1996
-----------------------                  and Director
(Phillip J. Salsbury)                    (Principal Executive Officer)


            *                            Vice President, Finance and                          March 6, 1996
--------------------------               Administration (Principal
(Robert O. Hersh)                        Financial and Accounting
                                         Officer)

            *                            Chairman of the Board of                             March 6, 1996
--------------------------               Directors
(Alan V. Gregory)         


            *                            Director                                             March 6, 1996
--------------------------
(Charles Harwood


                                         Director                                             March 6, 1996
--------------------------
(Peter Cheng)
</TABLE>


*By:/s/ Phillip J. Salsbury
    -------------------------------
      Phillip J. Salsbury
      Attorney-in-Fact