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THIS DOCUMENT IS A COPY OF THE SCHEDULE 13G FILED ON FEBRUARY 18, 1997
PURSUANT TO A RULE 201 TEMPORARY HARDSHIP EXEMPTION.
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 4)*
PharmChem Laboratories, Inc.
-----------------------------------------
(Name of Issuer)
Common Stock
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(Title of Class of Securities)
717133 10 2
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(CUSIP Number)
Check the following box if a fee is being paid with this statement [ ].
(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 6 Pages
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CUSIP NO. 717133 10 2 13G PAGE 2 OF 6 PAGES
1 NAME OF REPORTING PERSON
S.S OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Grumman Hill Investments, L.P.
06-1145561
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ]
(b) [ ]
3 SEC USE ONLY
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
5 SOLE VOTING POWER
0 Common Shares
NUMBER OF 6 SHARED VOTING POWER
SHARES
BENEFICIALLY 535,545 Common Shares
OWNED BY
EACH
REPORTING 7 SOLE DISPOSITIVE POWER
PERSON
WITH 0 Common Shares
8 SHARED DISPOSITIVE POWER
535,545 Common Shares
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
535,545 Common Shares
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES *
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
9.4%
12 TYPE OF REPORTING PERSON*
PN
*SEE INSTRUCTION BEFORE FILLING OUT!
Page 2 of 6 pages
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CUSIP NO. 717133 10 2 13G PAGE 3 OF 6 PAGES
1 NAME OF REPORTING PERSON
S.S OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Richard D. Irwin
###-##-####
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ]
(b) [ ]
3 SEC USE ONLY
4 CITIZENSHIP OR PLACE OF ORGANIZATION
USA
5 SOLE VOTING POWER
102,958
NUMBER OF 6 SHARED VOTING POWER
SHARES
BENEFICIALLY 555,545
OWNED BY
EACH
REPORTING 7 SOLE DISPOSITIVE POWER
PERSON
WITH 102,958
8 SHARED DISPOSITIVE POWER
555,545
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
658,503
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES *
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
11.6%
12 TYPE OF REPORTING PERSON*
IN
*SEE INSTRUCTION BEFORE FILLING OUT!
Page 3 of 6 pages
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Item 1 (a) Name of Issuer:
PharmChem Laboratories, Inc.
(b) Address of Issuer's Principal Executive Offices:
1505-A O'Brien Drive
Menlo Park, CA 94025
Item 2 (a) Name of Person Filing:
I. Grumman Hill Investments, L.P.
II. Richard D. Irwin
(b) Address of Principal Business Office or, if none, Residence:
Grumman Hill Associates Inc.
191 Elm Street
New Canaan, CT 06840
(c) Citizenship:
I. Formed in the State of Delaware
II. United States of America
(d) Title of Class of Securities:
Common Stock
(e) CUSIP No.:
717133 10 2
Item 3 Type of Filing:
Not applicable
Item 4 Ownership
(a) Amount Beneficially Owned:
I. 535,545 Common Shares
II. 658,503 Common Shares (including 48,958
common shares to which there is a right
to acquire within 60 days of 12/31/96)
(b) Percent of Class:
I. 9.4%
II. 11.6%
Page 4 of 6 Pages
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Item 2 (c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote:
I. 0 Common Shares
II. 102,958 Common Shares
(ii) shared power to vote or to direct the vote:
I. 535,545 Common Shares
II. 555,545 Common Shares
(iii) sole power to dispose or to direct the
disposition of:
I. 0 Common Shares
II. 102,958 Common Shares
(iv) shared power to dispose or to direct the
disposition of:
I. 535,545 Common Shares
II. 555,545 Common Shares
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 Subsidiary which
Acquired the Security Being Reported on by the Parent
Holding Company:
I. Not applicable.
II. Not applicable.
Item 8 Identification and Classification of Members of the Group:
Not applicable.
Item 9 Notice of Dissolution of Group:
Not applicable.
Item 10 Certification:
See Page 6
Page 5 of 6 Pages
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Item 10 Certification
The following certification shall be included if the statement is filed
pursuant to Rule 13d-1(b):
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 purposes 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.
February 13, 1997
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Date
/s/ RICHARD D. IRWIN
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Signature
Richard D. Irwin, Manager
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Name/Title
Grumman Hill Company, L.L.C.
General Partner
Grumman Hill Investments, L.P.
February 13, 1997
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Date
/s/ RICHARD D. IRWIN
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Signature
Richard D. Irwin, Manager
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Name/Title
