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^*

Cain Michael

(Last)

(First)

(Middle)

ASPEN INSURANCE HOLDINGS LIMITED

141 FRONT STREET

(Street)

HAMILTON

HM19

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
ASPEN INSURANCE HOLDINGS LTD [ AHL ]

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

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Group General Counsel

3. Date of Earliest Transaction (Month/Day/Year)
02/08/2013

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)
Ordinary Shares	02/08/2013		A		2,125	A	⁽¹⁾	6,384	D
Ordinary Shares	02/08/2013		F⁽²⁾		1,105	D	$35.43	5,279	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)
Restricted Share Units (2012 Grant)	⁽³⁾	02/08/2013		M			2,125	⁽⁴⁾	⁽⁴⁾	Ordinary Shares	2,125	⁽³⁾	4,248	D
Restricted Share Units (2013 Grant)	⁽³⁾	02/11/2013		A		4,965		⁽⁵⁾	⁽⁵⁾	Ordinary Shares	4,965	⁽³⁾	4,965	D

Explanation of Responses:

1. Ordinary shares acquired upon mandatory conversion of previously granted Restricted Share Units.

2. Ordinary shares withheld in order to satisfy tax liability upon vesting of previously granted Restricted Share Units.

3. Each Restricted Share Unit represents the right to receive one share of the Issuer's Ordinary Shares

4. Represents 2012 Restricted Share Units granted on February 8, 2012 under our 2003 Share Incentive Plan (as amended). One-third of the 2012 Restricted Share Units vests annually on the anniversary of the grant date over a three-year period, in each case subject to the Reporting Person's continued service. Upon vesting of the 2012 Restricted Share Units, the Reporting Person shall be entitled to received a number of Ordinary Shares equal to the number of Restricted Share Units then vesting.

5. Represents 2013 Restricted Share Units granted on February 11, 2013 under our 2003 Share Incentive Plan (as amended). One-third of the 2013 Restricted Share Units vests annually on the anniversary of the grant date over a three-year period, in each case subject to the Reporting Person's continued service. Upon vesting of the 2013 Restricted Share Units, the Reporting Person shall be entitled to received a number of Ordinary Shares equal to the number of Restricted Share Units then vesting.

Remarks:

	/s/ Patricia Roufca as Attorney-in-fact for Michael Cain	02/12/2013
	** 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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