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-------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION
FORM 4 WASHINGTON, D.C. 20549
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/ / CHECK THIS BOX IF NO STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
LONGER SUBJECT TO
SECTION 16. FORM 4 OR Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
FORM 5 OBLIGATIONS MAY Section 17(a) of the Public Utility Holding Company Act of 1935 or
CONTINUE. SEE Section 30(f) of the Investment Company Act of 1940
INSTRUCTION 1(b).
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1. Name and Address of Reporting Person* 2. Issuer Name AND Ticker or Trading Symbol 6. Relationship of Reporting Person(s)
to Issuer (Check all applicable)
X Director 10% Owner
Massey Richard J. IGEN International, Inc. (IGEN) ---- ----
--------------------------------------------------------------------------------------------- X Officer (give Other
(Last) (First) (Middle) 3. IRS or Social Security 4. Statement for ---- title ---- (specify
Number of Reporting Month/Year below) below
Person (Voluntary) ----------------- ------------------
c/o IGEN International, Inc. 16020 Industrial
Drive July 2000 President and Chief Operating Officer
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16020 Industrial Drive 5. If Amendment, 7. Individual or Joint/Group Filing
Date of Original (Check Applicable Line)
(Month/Year) _X_Form filed by One Reporting Person
Gaithersburg, MD 20877 ___Form filed by More than One
Reporting Person
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(City) (State) (Zip) TABLE I - NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED
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1. Title of Security 2. Trans- 3. Trans- 4. Securities Acquired (A) 5. Amount of 6. Owner- 7. Nature
(Instr. 3) action action or Disposed of (D) Securities ship of In-
Date Code (Instr. 3, 4 and 5) Beneficially Form: direct
(Month/ (Instr. 8) Owned at Direct Bene-
Day/Year) End of (D) or ficial
------------------------------------------- Month Indirect Owner-
(A) or (I) ship
Code V Amount (D) Price (Instr. 3 (Instr. 4) (Instr. 4)
and 4)
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Common Stock 7/22/00 M 80,000 A $20.625 957,000 D(2) --
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Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, SEE Instruction 4(b)(v). (Print or Type Responses)
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FORM 4 (CONTINUED) TABLE II - DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED
(E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES)
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1. Title of Derivative Security 2. Conver- 3. Trans- 4. Transac- 5. Number of Deriv- 6. Date Exer-
(Instr. 3) sion or action tion Code ative Securities Ac- cisable and Ex-
Exercise Date (Instr. 8) quired (A) or Dis- piration Date
Price of (Month/ posed of (D) (Month/Day/
Deriv- Day/ (Instr. 3, 4, and 5) Year)
ative Year)
Security
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Date Expira-
-------------------------------------- Exer- tion
cisable Date
Code V (A) (D)
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Options to Buy(1) $20.65 7/22/00 M V 80,000 (1) 2/08
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7. Title and Amount of Under- 8. Price 9. Number 10. Owner- 11. Nature
lying Securities of of Deriv- ship of In-
(Instr. 3 and 4) Deriv- ative Form direct
ative Securi- of De- Bene-
Secur- ties rivative ficial
ity Bene- Secu- Own-
(Instr. ficially rity: ership
5) Owned Direct (Instr. 4)
at End (D) or
Amount or of Indi-
Title Number of Month rect (I)
Shares (Instr. 4) (Instr. 4)
<S> <C> <C> <C> <C> <C>
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Common Stock 80,000 0 D
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Explanation of Responses:
(1) Employee option granted under the Issuer's 1994 Stock Option Plan. Option
vests 20% one year from the grant date and then an additional 5% vest each
quarter thereafter.
(2) Includes 44,000 shares of common stock that were issued under an early
exercise feature in an option granted to Dr. Massey, subject to a limited
repurchase right in favor of the Company at the option exercise price in
the event that the holder's employment with IGEN terminates prior to voting.
/s/Richard J. Massey 8/8/00
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**Signature of Reporting Person Date
**Intentional misstatements or omissions of facts constitute
Federal Criminal Violations. SEE 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed.
If space is insufficient, SEE Instruction 6 for procedure.
Potential persons who are to respond to the collection of information contained
in this form are not required to respond unless the form displays a currently
valid OMB Number.
