---------------------------- OMB APPROVAL ---------------------------- OMB Number: 3235-0104 Expires: September 30, 1998 Estimated average burden hours per response..... 0.5 ---------------------------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 3 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(f) of the Investment Company Act of 1940 (Print or Type Responses) ________________________________________________________________________________ 1. Name and Address of Reporting Person* Parkinson, Jr. Robert L. -------------------------------------------------------------------------------- (Last) (First) (Middle) c/o Enzon, Inc., 20 Kingsbridge Road -------------------------------------------------------------------------------- (Street) Piscataway New Jersey 08854 -------------------------------------------------------------------------------- (City) (State) (Zip) ________________________________________________________________________________ 2. Date of Event Requiring Statement (Month/Day/Year) 2/25/02 ________________________________________________________________________________ 3. IRS Identification Number of Reporting Person, if an entity (Voluntary) ________________________________________________________________________________ 4. Issuer Name and Ticker or Trading Symbol Enzon, Inc. (ENZN) ________________________________________________________________________________ 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) [X] Director [_] 10% Owner [_] Officer (give title below) [_] Other (specify below) ________________________________________________________________________________ 6. If Amendment, Date of Original (Month/Day/Year) ________________________________________________________________________________ 7. Individual or Joint/Group Filing (Check applicable line) [X] Form Filed by One Reporting Person [_] Form Filed by More than One Reporting Person ================================================================================ Table I -- Non-Derivative Securities Beneficially Owned ================================================================================ 3. Ownership form: 2. Amount of Securities Direct (D) or 1. Title of Security Beneficially Owned Indirect (I) 4. Nature of Indirect Beneficial Ownership (Instr. 4) (Instr. 4) (Instr. 4) (Instr. 5) ------------------------------------------------------------------------------------------------------------------------------------ No securities owned ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ==================================================================================================================================== 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). 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 OMD control number. (Over) SEC 1473 (7-97) FORM 3 (continued) TABLE II -- Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) ================================================================================ 5. Owner- 3. Title and Amount of Securities ship Underlying Derivative Security Form of 2. Date Exercisable (Instr. 4) Derivative and Expiration Date --------------------------------- 4. Conver- Security: (Month/Day/Year) Amount sion or Direct 6. Nature of ---------------------- or Exercise (D) or Indirect Date Expira- Number Price of Indirect Beneficial 1. Title of Derivative Exer- tion of Derivative (I) Ownership Security (Instr. 4) cisable Date Title Shares Security (Instr. 5) (Instr. 5) ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ==================================================================================================================================== Explanation of Responses: /s/ ROBERT PARKINSON, JR. February 26, 2002 --------------------------------------------- ----------------------- **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 provided is insufficient, see Instruction 6 for procedure. Potential persons who are to respond to the collections of information contained in this form are not required to respond unless the form displays a currently valid OMB number Page 2 SEC 1474 (7-97)