-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, AoiQIpVGt18YHUOcLL+j4CbzQJ4e0wvTfEMBdqZH68Sfbyq377bAEJI2Gs/VxzP6 LV4iPDJD97kdl3tAC/I4VA== 0000891618-99-000512.txt : 19990215 0000891618-99-000512.hdr.sgml : 19990215 ACCESSION NUMBER: 0000891618-99-000512 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19990212 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: PHARMCHEM LABORATORIES INC CENTRAL INDEX KEY: 0000876645 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-MEDICAL LABORATORIES [8071] IRS NUMBER: 770187280 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: SEC FILE NUMBER: 005-42072 FILM NUMBER: 99534392 BUSINESS ADDRESS: STREET 1: 1505 A OBRIEN DR CITY: MENLO PARK STATE: CA ZIP: 94025 BUSINESS PHONE: 4153286200 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: IRWIN RICHARD D CENTRAL INDEX KEY: 0000903524 STANDARD INDUSTRIAL CLASSIFICATION: [] FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: GRUMMAN HILL ASSOCIATES STREET 2: 191 ELM ST CITY: NEW CANAAN STATE: CT ZIP: 06840-5310 BUSINESS PHONE: 2039865883 MAIL ADDRESS: STREET 1: 191 ELM STREET CITY: NEW CANAAN STATE: CT ZIP: 08840 SC 13G/A 1 AMENDMENT #6 TO SCHEDULE 13G 1 OMB APPROVAL -------------------------------- OMB NUMBER: 3235-0145 EXPIRES: AUGUST 31, 1999 ESTIMATED AVERAGE BURDEN HOURS PER RESPONSE.........14.90 -------------------------------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 6)* PharmChem Laboratories, Inc. - -------------------------------------------------------------------------------- (Name of Issuer) Common Stock - -------------------------------------------------------------------------------- (Title of Class of Securities) 717133 10 2 - -------------------------------------------------------------------------------- (CUSIP Number) December 31, 1998 - -------------------------------------------------------------------------------- (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [ ] Rule 13d-1(c) [X] Rule 13d-1(d) * 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 on 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). 2 CUSIP No. 717133 10 2 - ------------------------------------------------------------------------------- 1. Names of Reporting Persons I.R.S. Identification Nos. of Above Persons (entities only). Grumman Hill Investments, L.P. 06-1145561 - ------------------------------------------------------------------------------- 2. Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ] - ------------------------------------------------------------------------------- 3. SEC Use Only - ------------------------------------------------------------------------------- 4. Citizenship or Place of Organization Delaware - ------------------------------------------------------------------------------- NUMBER OF 5. Sole Voting Power 0 SHARES ---------------------------------------------------------------- BENEFICIALLY 6. Shared Voting Power 535,545 OWNED BY ---------------------------------------------------------------- EACH 7. Sole Dispositive Power 0 REPORTING ---------------------------------------------------------------- PERSON WITH: 8. Shared Dispositive Power 535,545 - ------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 535,545 - ------------------------------------------------------------------------------- 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) - ------------------------------------------------------------------------------- 11. Percent of Class Represented by Amount in Row (9) 9.3% - ------------------------------------------------------------------------------- 12. Type of Reporting Person (See Instructions) PN 3 CUSIP No. 717133 10 2 - -------------------------------------------------------------------------------- 1. Names of Reporting Persons I.R.S. Identifications Nos. of Above Persons (entities only). Richard D. Irwin - -------------------------------------------------------------------------------- 2. Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ] - -------------------------------------------------------------------------------- 3. SEC Use Only - -------------------------------------------------------------------------------- 4. Citizenship or Place of Organization United States - -------------------------------------------------------------------------------- NUMBER OF 5. Sole Voting Power 90,876 SHARES -------------------------------------------------------------- BENEFICIALLY 6. Shared Voting Power 565,545 OWNED BY -------------------------------------------------------------- EACH 7. Sole Dispositive Power 90,876 REPORTING -------------------------------------------------------------- PERSON WITH: 8. Shared Dispositive Power 565,545 - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 656,421 - -------------------------------------------------------------------------------- 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) - -------------------------------------------------------------------------------- 11. Percent of Class Represented by Amount in Row (9) 11.4 - -------------------------------------------------------------------------------- 12. Type of Reporting Person (See Instructions) IN 4 Item 1 (a) Name of Issuer: PharmChem Laboratories, Inc. (b) Address of Issuer's Principal Executive Offices: 1509-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. 656,421 Common Shares (including 36,876 common shares to which there is a right to acquire within 60 days of 12/31/98) (b) Percent of Class: I. 9.3 II. 11.4 5 Item 4 (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. 90,876 Common Shares (ii) shared power to vote or to direct the vote: I. 535,545 Common Shares II. 565,545 Common Shares (iii) sole power to dispose or to direct the disposition of: I. 0 Common Shares II. 90,876 Common Shares (iv) shared power to dispose or to direct the disposition of: I. 535,545 Common Shares II. 565,545 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 Certificates: Not applicable. 6 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 11, 1999 ---------------------------------------- Date /s/ RICHARD D. IRWIN ---------------------------------------- Signature Richard D. Irwin, Manager ---------------------------------------- Name/Title Grumman Hill Company General Partner Grumman Hill Investments, L.P. February 11, 1999 ---------------------------------------- Date /s/ RICHARD D. IRWIN ---------------------------------------- Signature Richard D. Irwin ---------------------------------------- Name/Title -----END PRIVACY-ENHANCED MESSAGE-----