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-------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION -----------------------------
FORM 3 WASHINGTON, D.C. 20549 OMB APPROVAL
-------- OMB Number: 3235-0104
INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Expires: September 30, 1998
Estimated average burden
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, hours per response .... 0.5
Section 17(a) of the Public Utility Holding Company Act of 1935 or ----------------------------
(Print or Type Responses) Section 30(f) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person* 2. Date of Event Re- 4. Issuer Name AND Ticker or Trading Symbol
quiring Statement
Rees Anthony R. (Month/Day/Year) IGEN
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(Last) (First) (Middle) June 30, 2000 5. Relationship of Reporting Person(s) 6. If Amendment,
----------------------- to Issuer (Check all applicable) Date of Original
3. I.R.S. Identification X Director ---- 7/10/00
16020 Industrial Drive Number of Reporting, ---- Officer (give Other (specify ---------------
------------------------------------------------- Person, if an entity title below) below) 7. Individual or
(Street) (Voluntary) ---- ---- Joint/Group Filing
x Form filed by One
--- Reporting Person
--------------------------- --- Form filed by
More than One
Reporting Person
Gaithersburg MD 20877
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(City) (State) (Zip) TABLE I -- NON-DERIVATIVE SECURITIES BENEFICIALLY OWNED
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1. Title of Security 2. Amount of Securities 3. Ownership 4. Nature of Indirect Beneficial
(Instr. 4) Beneficially Owned Form: Direct Ownership (Instr. 5)
(Instr. 4) (D) or Indirect
(I) (Instr. 5)
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Common Stock 1000 D
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Common Stock 500 D
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Common Stock 300 D
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Common Stock 300 D
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Common Stock 500 D
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Common Stock 200 D
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Common Stock 200 D
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Common Stock 100 D
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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 5(b)(v).
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FORM 3 (CONTINUED) TABLE II - DERIVATIVE SECURITIES BENEFICIALLY OWNED (E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE
SECURITIES)
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1. Title of Derivative Security 2. Date Exer- 3. Title and Amount of Securities 4. Conver- 5. Owner- 6. Nature of
(Instr. 4) cisable and Underlying Derivative Security sion or ship Indirect
Expiration (Instr. 4) Exercise Form of Beneficial
Date Price of Deriv- Ownership
(Month/Day/ Deri- ative (Instr. 5)
Year) vative Security:
-------------------------------------------------- Security Direct
Amount (D) or
Date Expir- or Indirect
Exer- ation Title Number (I)
cisable Date of (Instr. 5)
Shares
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Option to Purchase Common (2) 6/27/00 Common Stock 10,000 $ 15.69 D
Stock (1)
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Explanation of Responses:
(1) Option automatically granted under IGEN 1994 Non-Employee Director's Stock Option Plan.
(2) Exercisable over 5 year period; 2,000 shares exercisable on 6/27/01; 500 shares exercisable every 3 months thereafter.
/s/ ANTHONY REES 8/15/00
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**Intentional misstatements or omissions of facts constitute Federal **Signature of Reporting Person Date
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.
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