<PAGE>
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OMB APPROVAL
UNITED STATES OMB NUMBER 3235-0145
SECURITIES AND EXCHANGE COMMISSION EXPIRES: DECEMBER 31, 1997
WASHINGTON, D.C. 20549 ESTIMATED AVERAGE BURDEN
HOURS PER RESPONSE . . . 14.90
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SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO. ____)*
Tandem Computers, Inc.
- --------------------------------------------------------------------------------
(Name of Issuer)
Common
- --------------------------------------------------------------------------------
(Title of Class of Securities)
875370108
-------------------------------------------
(CUSIP Number)
Check the following box if a fee is being paid with this statement [XX]. (A fee
is not required only if the filing 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).
*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 the purpose 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 1 OF 4 PAGES
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- ----------------------- ---------------------
CUSIP NO. 875370108 13G PAGE 2 OF 4 PAGES
- ----------------------- ---------------------
- ------------------------------------------------------------------------------
NAME OF REPORTING PERSON
1 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Dodge & Cox
94-1441976
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [_]
N/A
- ------------------------------------------------------------------------------
SEC USE ONLY
3
- ------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
4
California - U.S.A.
- ------------------------------------------------------------------------------
SOLE VOTING POWER
5
NUMBER OF 7,096,625
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 6
-0-
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
7
REPORTING 7,096,625
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 8
-0-
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
7,096,625
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10
N/A
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
11
6.1%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON*
12
IA
- ------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
PAGE 2 OF 4 PAGES
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Item 1(a) Name of Issuer:
--------------
Tandem Computers, Inc.
Item 1(b) Address of Issuer's Principal Executive Offices:
-----------------------------------------------
19191 Vallco Parkway, LOC 4-57
Cupertino, CA 95014
Item 2(a) Name of Person Filing:
---------------------
Dodge & Cox
Item 2(b) Address of the Principal Office or, if none, Residence:
-------------------------------------------------------
One Sansome St., 35th Floor
San Francisco, CA 94104
Item 2(c) Citizenship:
-----------
California - U.S.A.
Item 2(d) Title of Class of Securities:
----------------------------
Common
Item 2(e) CUSIP Number:
------------
875370108
Item 3 If the Statement is being filed pursuant to Rule 13d-1(b),
----------------------------------------------------------
or 13d-2(b), check whether the person filing is a:
-------------------------------------------------
(e) [X] Investment Advisor registered under section 203 of
the Investment Advisors Act of 1940
Item 4 Ownership:
---------
(a) Amount Beneficially Owned:
-------------------------
7,096,625
(b) Percent of Class:
----------------
6.1%
PAGE 3 OF 4 PAGES
<PAGE>
(c) Number of shares as to which such person has:
---------------------------------------------
(i) sole power to vote or direct the vote: 7,096,625
(ii) shared power to vote or direct the vote: -0-
(iii) sole power to dispose or to direct the
disposition of: 7,096,625
(iv) shared power to dispose or to direct the
disposition of: -0-
Item 5 Ownership of Five Percent or Less of a Class:
--------------------------------------------
Not applicable.
Item 6 Ownership of More than Five Percent on Behalf of Another Person:
---------------------------------------------------------------
Not applicable.
Item 7 Identification and Classification of the Subsidiary Which
---------------------------------------------------------
Acquired the Security Being Reported on By the Parent
-----------------------------------------------------
Holding Company:
---------------
Not applicable.
Item 8 Identification and Classification of Members of the Group:
---------------------------------------------------------
Not applicable.
Item 9 Notice of Dissolution of a Group:
--------------------------------
Not applicable.
Item 10 Certification:
-------------
By signing below I certify that, to the best
of my knowledge and belief, the securities referred to
above were acquired in the ordinary course of business and
were not acquired for the purpose of and do not have the
effect of changing or influencing the control of the issuer
of such securities and were not acquired in connection with
or as a participant in any transaction having such purpose
or effect.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.
Dated: February 8, 1996
-----------------
DODGE & COX
By: /s/ W. TIMOTHY RYAN
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Name: W. Timothy Ryan
------------------------------
Title: Senior Vice President
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PAGE 4 OF 4 PAGES
