Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
FREDERICO DOMINIC
  2. Issuer Name and Ticker or Trading Symbol
ASSURED GUARANTY LTD [AGO]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President/CEO/Deputy Chairman
(Last)
(First)
(Middle)
30 WOODBOURNE AVENUE
3. Date of Earliest Transaction (Month/Day/Year)
02/04/2018
(Street)

HAMILTON, D0 HM08
4. If Amendment, Date 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
(City)
(State)
(Zip)
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)
Code V Amount (A) or (D) Price
Common Shares 02/04/2018   F   36,700 (1) D $ 35.19 962,014.0034 (2) D  
Common Shares 02/04/2018   M   175,918 (3) A $ 0 1,137,932.0034 D  
Common Shares 02/04/2018   F   73,050 (1) D $ 35.19 1,064,882.0034 D  
Common Shares               9,400 I By Wife
Common Shares               200 I By Daughter
Common Shares               345,000 I By Family Limited Partnership

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities
(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 of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Performance Share Units (3) 02/04/2018   (3) M     87,959   (3)   (3) Common Shares 87,959 $ 0 172,235 (4) D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
FREDERICO DOMINIC
30 WOODBOURNE AVENUE
HAMILTON, D0 HM08
  X     President/CEO/Deputy Chairman  

Signatures

 /s/ Ling Chow, Attorney-in-fact   02/06/2018
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Common Shares being withheld to pay tax liability.
(2) Total includes 69 shares purchased on 12/31/2017 pursuant to the Assured Guaranty Ltd. Employee Stock Purchase Plan which meets the requirements of Rule 16b-3.
(3) Performance share units awarded pursuant to the Assured Guaranty Ltd. 2004 Long-Term Incentive Plan (the "Plan"). Using the highest 40-day average stock price during the performance period (7/1/2016 to 12/31/2017), 200.00% of the performance share units granted became vested. The number of Common Shares delivered equals the number of performance share units granted multiplied by 200.00%.
(4) Total includes performance units from other tranches with different performance measures, performance periods and vesting dates, but does not include 584,910 outstanding options.

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