SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
______________________
SCHEDULE 13D
(Amendment No. 1)
Under the Securities Exchange Act of 1934
Advanced Digital Information Corporation
(Name of Issuer)
Common Stock, No Par Value
(Title of Class of Securities)
007525108
(CUSIP Number)
Peter A. Nussbaum, Esq.
Schulte Roth & Zabel LLP
900 Third Avenue
New York, New York 10022
(212) 756-2000
(Name, address and telephone number of person
authorized to receive notices and communications)
January 20, 1997
(Date of event which requires filing of this statement)
If the filing person has previously filed a statement on Schedule 13G to
report the acquisition which is the subject of this Schedule 13D, and is
filing this schedule because of Rule 13d-1(b)(3) or (4), check the following
box [ ].
Check the following box if a fee is being paid with the statement [ ].
(A fee is not required only if the reporting person: (1) has a previous
statement on file reporting beneficial ownership of more than five percent of
the class of securities described in Item 1; and (2) has filed no amendment
subsequent thereto reporting beneficial ownership of five percent or less of
such class.) (See Rule 13d-7.)
NOTE: Six copies of this statement, including all exhibits, should be
filed with the Commission. See Rule 13d-1(a) for other parties to whom copies
are to be sent.
* The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter the disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not
be deemed to be "filed" for purposes of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).
<PAGE>
SCHEDULE 13D/A
CUSIP No. 007525108 Page 2 of 15 Pages
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
VGH Partners, L.L.C.
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A (a) [x]
GROUP* (b) [ ]
3 SEC USE ONLY
4 SOURCE OF FUNDS*
WC OO
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS [ ]
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)
6 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
NUMBER OF 7 SOLE VOTING POWER
SHARES 0
BENEFICIALLY 8 SHARED VOTING POWER
OWNED BY EACH 153,600
9 SOLE DISPOSITIVE POWER
REPORTING 0
PERSON
WITH 10 SHARED DISPOSITIVE POWER
153,600
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
REPORTING PERSON
153,600
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) [ ]
EXCLUDES CERTAIN SHARES*
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW
(11)
1.9%
14 TYPE OF REPORTING PERSON*
OO
<PAGE>
SCHEDULE 13D/A
CUSIP No. 007525108 Page 3 of 15 Pages
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Vinik Partners, L.P.
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A (a) [x]
GROUP* (b) [ ]
3 SEC USE ONLY
4 SOURCE OF FUNDS*
WC OO
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS [ ]
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)
6 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
NUMBER OF 7 SOLE VOTING POWER
SHARES 0
BENEFICIALLY 8 SHARED VOTING POWER
OWNED BY EACH 153,600
9 SOLE DISPOSITIVE POWER
REPORTING 0
PERSON
WITH 10 SHARED DISPOSITIVE POWER
153,600
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
REPORTING PERSON
153,600
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) [ ]
EXCLUDES CERTAIN SHARES*
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW
(11)
1.9%
14 TYPE OF REPORTING PERSON*
PN
<PAGE>
SCHEDULE 13D/A
CUSIP No. 007525108 Page 4 of 15 Pages
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Vinik Asset Management, L.P.
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A (a) [x]
GROUP* (b) [ ]
3 SEC USE ONLY
4 SOURCE OF FUNDS*
OO
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS [ ]
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)
6 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
NUMBER OF 7 SOLE VOTING POWER
SHARES 0
BENEFICIALLY 8 SHARED VOTING POWER
OWNED BY EACH 214,500
9 SOLE DISPOSITIVE POWER
REPORTING 0
PERSON
WITH 10 SHARED DISPOSITIVE POWER
214,500
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
REPORTING PERSON
214,500
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) [ ]
EXCLUDES CERTAIN SHARES*
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW
(11)
2.7%
14 TYPE OF REPORTING PERSON*
PN
<PAGE>
SCHEDULE 13D/A
CUSIP No. 007525108 Page 5 of 15 Pages
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Jeffrey N. Vinik
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A (a) [x]
GROUP* (b) [ ]
3 SEC USE ONLY
4 SOURCE OF FUNDS*
AF OO
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS [ ]
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)
6 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
NUMBER OF 7 SOLE VOTING POWER
SHARES 0
BENEFICIALLY 8 SHARED VOTING POWER
OWNED BY EACH 368,100
9 SOLE DISPOSITIVE POWER
REPORTING 0
PERSON
WITH 10 SHARED DISPOSITIVE POWER
368,100
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
REPORTING PERSON
368,100
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) [ ]
EXCLUDES CERTAIN SHARES*
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW
(11)
4.6%
14 TYPE OF REPORTING PERSON*
IN
<PAGE>
SCHEDULE 13D/A
CUSIP No. 007525108 Page 6 of 15 Pages
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Michael S. Gordon
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A (a) [x]
GROUP* (b) [ ]
3 SEC USE ONLY
4 SOURCE OF FUNDS*
AF OO
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS [ ]
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)
6 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
NUMBER OF 7 SOLE VOTING POWER
SHARES 0
BENEFICIALLY 8 SHARED VOTING POWER
OWNED BY EACH 368,100
9 SOLE DISPOSITIVE POWER
REPORTING 0
PERSON
WITH 10 SHARED DISPOSITIVE POWER
368,100
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
REPORTING PERSON
368,100
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) [ ]
EXCLUDES CERTAIN SHARES*
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW
(11)
4.6%
14 TYPE OF REPORTING PERSON*
IN
<PAGE>
SCHEDULE 13D/A
CUSIP No. 007525108 Page 7 of 15 Pages
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Mark D. Hostetter
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A (a) [x]
GROUP* (b) [ ]
3 SEC USE ONLY
4 SOURCE OF FUNDS*
AF OO
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS [ ]
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)
6 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
NUMBER OF 7 SOLE VOTING POWER
SHARES 0
BENEFICIALLY 8 SHARED VOTING POWER
OWNED BY EACH 368,100
9 SOLE DISPOSITIVE POWER
REPORTING 0
PERSON
WITH 10 SHARED DISPOSITIVE POWER
368,100
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
REPORTING PERSON
368,100
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) [ ]
EXCLUDES CERTAIN SHARES*
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW
(11)
4.6%
14 TYPE OF REPORTING PERSON*
IN
<PAGE>
SCHEDULE 13D/A
CUSIP No. 007525108 Page 8 of 15 Pages
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Vinik Asset Management, L.L.C.
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A (a) [x]
GROUP* (b) [ ]
3 SEC USE ONLY
4 SOURCE OF FUNDS*
OO
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS [ ]
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)
6 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
NUMBER OF 7 SOLE VOTING POWER
SHARES 0
BENEFICIALLY 8 SHARED VOTING POWER
OWNED BY EACH 214,500
9 SOLE DISPOSITIVE POWER
REPORTING 0
PERSON
WITH 10 SHARED DISPOSITIVE POWER
214,500
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
REPORTING PERSON
214,500
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) [ ]
EXCLUDES CERTAIN SHARES*
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW
(11)
2.7%
14 TYPE OF REPORTING PERSON*
OO
<PAGE>
13D/A Page 9 of 15 Pages
This Amendment No. 1 amends the statement on Schedule 13D which was
filed on January 13, 1997 by the undersigned (the "Schedule 13D") with
respect to the common stock with no par value per share (the "Common Stock"),
issued by Advanced Digital Information Corporation, a Washington corporation
(the "Company"). Capitalized terms used herein and not otherwise defined in
this Amendment have the meanings set forth in the Schedule 13D.
Except as specifically provided herein, this Amendment does not modify
any of the information previously reported on Schedule 13D.
* * *
Paragraph (a) of Item 2 is hereby amended and restated to correct previously
disclosed information as follows:
ITEM 2. IDENTITY AND BACKGROUND.
(a) This statement is filed by (i) Vinik Partners, L.P., a Delaware
limited partnership ("Vinik Partners"), with respect to shares of Common Stock
beneficially owned by it, (ii) Vinik Asset Management, L.P., a Delaware
limited partnership ("VAM LP"), with respect to shares of Common Stock
beneficially owned by Vinik Overseas Fund, Ltd., a Cayman Islands company
("Vinik Overseas"), as well as shares of Common Stock held in another
discretionary account (the "Discretionary Account") managed by VAM LP, (iii)
Jeffrey N. Vinik, Michael S. Gordon and Mark D. Hostetter with respect to
shares of Common Stock beneficially owned by Vinik Partners, Vinik Overseas,
and the Discretionary Account; (iv) VGH Partners, L.L.C., a Delaware limited
liability company ("VGH"), with respect to shares of Common Stock
beneficially owned by Vinik Partners; and (v) Vinik Asset Management, L.L.C.,
a Delaware limited liability company ("VAM LLC"), with respect to shares of
Common Stock beneficially owned by Vinik Overseas and the Discretionary
Account. The foregoing persons are hereinafter sometimes referred to
collectively as the "Reporting Persons". Any disclosures herein with respect
to persons other than the Reporting Persons are made on information and
belief after making inquiry to the appropriate party.
The general partner of Vinik Partners is VGH. The general partner
of VAM LP is VAM LLC. Mr. Vinik is the senior managing member, and Messrs.
Gordon and Hostetter are managing members, of VGH and VAM LLC.
* * *
The following paragraph of Item 5 is hereby amended and restated as follows:
ITEM 5. INTEREST IN SECURITIES OF THE ISSUER.
(a) The approximate aggregate percentage of shares of Common Stock
reported beneficially owned by each person herein is based on 8,035,368 shares
outstanding, which is the total number of shares of Common Stock outstanding
as of January 3, 1997, as reported to the Company by the Reporting Persons.
<PAGE>
Page 10 of 15 Pages
As of the close of business on January 20, 1997
(i) Vinik Partners owns beneficially 153,600 shares of Common
Stock, constituting approximately 1.9% of the shares outstanding.
(ii) VAM LP owns directly no shares of Common Stock. By
reason of the provisions of Rule 13d-3 of the Securities Exchange Act of 1934,
as amended (the "Act"), VAM LP may be deemed to own beneficially 202,400
shares (constituting approximately 2.5% of the shares outstanding) held by
Vinik Overseas, and 12,100 shares of Common Stock (constituting
approximately 0.2% of the shares outstanding) held by the Discretionary
Account, which, when aggregated, total 214,500 shares of Common Stock,
constituting approximately 2.7% of the shares outstanding.
(iii) Messrs. Vinik, Gordon and Hostetter each directly owns no
shares of Common Stock. By reason of the provisions of Rule 13d-3 of the Act,
each may be deemed to beneficially own the 153,600 shares beneficially owned
by Vinik Partners, the 202,400 shares beneficially owned by Vinik Overseas,
and the 12,100 shares beneficially owned by the Discretionary Account.
Such shares total 368,100 shares of Common Stock, constituting approximately
4.6% of the shares outstanding.
(iv) VGH owns directly no shares of Common Stock. By reason
of the provisions of Rule 13d-3 of the Act, VGH may be deemed to own
beneficially the 153,600 shares beneficially owned by Vinik Partners,
constituting approximately 1.9% of the shares outstanding.
(v) VAM LLC owns directly no shares of Common Stock. By reasons
of the provisions of Rule 13d-3 of the Act, VAM LLC may be deemed to own the
202,400 shares beneficially owned by Vinik Overseas and the 12,100 shares
beneficially owned by the Discretionary Account. When the shares beneficially
owned by Vinik Overseas and the Discretionary Account are aggregated they
total 214,500 shares of Common Stock, constituting approximately 2.7% of
the shares outstanding.
(vi) In the aggregate, the Reporting Persons beneficially
own a total of 368,100 shares of Common Stock, constituting approximately
4.6% of the shares outstanding.
* * *
The following paragraph of Item 5 is hereby supplemented as follows:
ITEM 5. INTEREST IN SECURITIES OF THE ISSUER.
(c) The trading dates, number of shares of Common Stock purchased or
sold and price per share for all transactions in the Common Stock since those
reported in Schedule 13D until January 20, 1997 by Vinik Partners and by VAM
LP, on behalf of Vinik Overseas and the Discretionary Account, are set forth
in Schedules A, B and C.
Page 11 of 15 Pages
* * *
The following paragraph is hereby added to Item 5:
ITEM 5. INTEREST IN SECURITIES OF THE ISSUER.
(e) As of January 20, 1997 the Reporting Persons ceased to be the
beneficial owners of more than five percent of the Company's Common Stock.
<PAGE>
Page 12 of 15 Pages
SIGNATURES
After reasonable inquiry and to the best of our knowledge and belief,
the undersigned certify that the information set forth in this statement is
true, complete and correct.
DATED: January 21, 1997 /s/ Jeffrey N. Vinik,
JEFFREY N. VINIK, individually
and as senior managing member of
VGH Partners, L.L.C., on behalf
of VINIK PARTNERS, L.P.
/s/ Jeffrey N. Vinik
Jeffrey N. Vinik, as senior managing
member of Vinik Asset Management, L.L.C.,
on behalf of VINIK ASSET MANAGEMENT, L.P.
/s/ Jeffrey N. Vinik
Jeffrey N. Vinik, as senior managing
member of VGH PARTNERS, L.L.C. and
VINIK ASSET MANAGEMENT, L.L.C.
/s/ Michael S. Gordon, individually
MICHAEL S. GORDON
/s/ Mark D. Hostetter, individually
MARK D. HOSTETTER
<PAGE>
Page 13 of 15 Pages
Schedule A
Vinik Partners, L.P.
Transactions in the Common Stock
Price Per Share
Date of Number of (including
Transaction Shares Purchased/(Sold) Commissions, if any)
__________________________________________________________________________
01/14/97 (16,700) $19.5318
01/15/97 (14,600) $19.7550
01/20/97 (15,200) $22.2015
<PAGE>
Page 14 of 15 Pages
Schedule B
Vinik Asset Management, L.P.
on behalf of
Vinik Overseas Fund, Ltd.
Transactions in the Common Stock
Price Per Share
Date of Number of (including
Transaction Shares Purchased/(Sold) Commissions, if any)
__________________________________________________________________________
01/14/97 (22,000) $19.5318
01/15/97 (19,300) $19.7550
01/20/97 (20,500) $22.2015
<PAGE>
Page 14 of 15 Pages
Schedule C
Vinik Asset Management, L.P.
on behalf of the
Discretionary Account
Transactions in the Common Stock
Price Per Share
Date of Number of (including
Transaction Shares Purchased/(Sold) Commissions, if any)
__________________________________________________________________________
01/14/97 (1,300) $19.5318
01/15/97 (1,100) $19.7550
01/20/97 (1,200) $22.2015
