-------------------------------
OMB APPROVAL
-------------------------------
OMB Number: 3235-0287
Expires: September 30, 1998
Estimated average burden
hours per response ........ 0.5
-------------------------------
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 4
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
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
[_] Check box if no longer subject to Section 16. Form 4 or Form 5 obligations
may continue. See Instruction 1(b).
[_] See Instruction 1(b).
(Print or Type Responses)
________________________________________________________________________________
1. Name and Address of Reporting Person*
LeBuhn Robert
- --------------------------------------------------------------------------------
(Last) (First) (Middle)
c/o Enzon, Inc., 20 Kingsbridge Road
- --------------------------------------------------------------------------------
(Street)
Piscataway, New Jersey 08854
- --------------------------------------------------------------------------------
(City) (State) (Zip)
________________________________________________________________________________
2. Issuer Name and Ticker or Trading Symbol
Enzon, Inc. (ENZN)
________________________________________________________________________________
3. I.R.S Identification Number of Reporting Person, if an entity (Voluntary)
________________________________________________________________________________
4. Statement for Month/Year
July 2000
________________________________________________________________________________
5. If Amendment, Date of Original (Mo/Yr)
________________________________________________________________________________
6. Relationship of Reporting Person to Issuer
(Check all applicable)
[X] Director [_] 10% Owner
[_] Officer (give title below) [_] Other (specify below)
________________________________________________________________________________
7. Individual or Joint/Group Filing
(Check all applicable)
[X] Form filed by one Reporting Person
[_] Form filed by more than one Reporting Person
________________________________________________________________________________
================================================================================
Table I -- Non-Derivative Securities Acquired, Disposed of,
or Beneficially Owned
================================================================================
5. 6.
4. Amount of Owner-
Securities Acquired (A) or Securities ship
3. Disposed of (D) Beneficially Form: 7.
Transaction (Instr. 3, 4 and 5) Owned at End Direct Nature of
2. Code ----------------------------- of Month (D) or Indirect
1. Transaction (Instr. 8) (A) Indirect Beneficial
Title of Security Date --------- Amount or Price (Instr. 3 (I) Ownership
(Instr. 3) (mm/dd/yy) Code V (D) and 4) (Instr.4) (Instr. 4)
- ------------------------------------------------------------------------------------------------------------------------------------
Common Stock 7/12/00 M 10,000 A $2.75 D
- ------------------------------------------------------------------------------------------------------------------------------------
Common Stock 7/12/00 S 10,000 D $53.25 21,549 D
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
====================================================================================================================================
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).
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 control number.
(Over)
SEC 1474 (7-97)
FORM 4 (continued)
Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
================================================================================
10.
9. Owner-
Number ship
of Form
2. Deriv- of
Conver- 5. 7. ative Deriv- 11.
sion Number of Title and Amount Secur- ative Nature
or Derivative 6. of Underlying 8. ities Secur- of
Exer- 4. Securities Date Securities Price Bene- ity: In-
cise 3. Trans- Acquired (A) Exercisable and (Instr. 3 and 4) of ficially Direct direct
Price Trans- action or Disposed Expiration Date ---------------- Deriv- Owned (D) or Bene-
1. of action Code of (D) (Month/Day/Year) Amount ative at End In- ficial
Title of Deriv- Date (Instr. (Instr. 3, ---------------- or Secur- of direct Owner-
Derivative ative (Month/ 8) 4 and 5) Date Expira- Number ity Year (I) ship
Security Secur- Day/ ------- ------------ Exer- tion of (Instr. (Instr. (Instr. (Instr.
(Instr. 3) ity Year) Code V (A) (D) cisable Date Title Shares 5) 4) 4) 4)
- ------------------------------------------------------------------------------------------------------------------------------------
Common Stock (a) Common
(right to buy) $2.75 7/12/00 M 10,000 (b) 8/15/04 Stock 10,000 O D
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
====================================================================================================================================
Explanation of Responses:
(a) Acquired pursuant to the Company's Non-Qualified Stock Option Plan and
qualified under Rule 16b-3.
(b) Options vested as to 5,000 shares on each of August 15, 1995 and August 15,
1996.
/s/ ROBERT LEBUHN July 31, 2000
- --------------------------------------------- -----------------------
**Signature of Reporting Person Date
Robert LeBuhn
** 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.
Page 2
SEC 1474 (7-97)
