SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

HORAK IVAN D

(Last)

(First)

(Middle)

C/O ENZON PHARMACEUTICALS, INC.

685 ROUTE 202/206

(Street)

BRIDGEWATER,

08807

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
ENZON PHARMACEUTICALS INC [ ENZN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	EVP, R&D, CSO

3. Date of Earliest Transaction (Month/Day/Year)
01/17/2011

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock⁽¹⁾	01/17/2011		J⁽¹⁾	V	18,333	A	⁽¹⁾	135,125⁽²⁾	D
Common Stock	01/17/2011		F⁽³⁾		6,793	D	$12.15	128,332	D
Common Stock⁽⁴⁾	01/27/2011		J⁽⁴⁾	V	16,465	A	⁽⁴⁾	128,332⁽⁵⁾	D
Common Stock	01/27/2011		F⁽⁶⁾		6,070	D	$11.63	122,262	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Shares acquired upon vesting of restricted stock granted to the Reporting Person on January 17, 2008 and reported on a Form 4 filed on January 18, 2008.

2. The Reporting Person previously reported all restricted stock granted to the Reporting Person on January 17, 2008 in Table I of the Form 4 filed on January 18, 2008. As such, no adjustment to the Reporting Person's beneficial ownership needs to be made to reflect this vesting event.

3. Shares were withheld from the Reporting Person, in an exempt transaction under Rule 16b-3, solely to satisfy tax obligations arising from the vesting of the restricted stock described in this Form 4.

4. Shares acquired upon vesting of restricted stock units granted to the Reporting Person on January 27, 2010 and reported on a Form 4 filed on January 29, 2010.

5. The Reporting Person previously reported all restricted stock units granted to the Reporting Person on January 27, 2010 in Table I of the Form 4 filed on January 29, 2010. As such, no adjustment to the Reporting Person's beneficial ownership needs to be made to reflect this vesting event.

6. Shares were withheld from the Reporting Person, in an exempt transaction under Rule 16b-3, solely to satisfy tax obligations arising from the vesting of the restricted stock units described in this Form 4.

	/s/ Andrew Rachear, Attorney-In-Fact	01/28/2011
	** Signature of Reporting Person	Date
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).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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