SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): September 14, 2012

AMBAC FINANCIAL GROUP, INC.

(Exact name of Registrant as specified in its charter)

Delaware	1-10777	13-3621676
(State of incorporation)	(Commission file number)	(I.R.S. employer identification no.)

One State Street Plaza, New York, New York 10004

(Address of principal executive offices) (Zip Code)

(212) 668-0340

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

£ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

£ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

£ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

£ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4c))

Item 7.01 Regulation FD Disclosure

As previously announced, the Circuit Court for Dane County, Wisconsin (the “Rehabilitation Court”) approved by order a motion by the Wisconsin Commissioner of Insurance, acting as the Rehabilitator of the Segregated Account of Ambac Assurance Corporation (the “Segregated Account”), to commence making interim cash payments on policy claims submitted to the Segregated Account (“Policy Claims”) in an amount, in cash, equal to 25% of the permitted amount of each Policy Claim (the “Interim Cash Payment Order”). To facilitate the Interim Cash Payment Order, the Rehabilitator has promulgated (and filed with the Rehabilitation Court) Rules Governing the Submission, Processing and Partial Payment of Policy Claims in accordance with the June 4, 2012 Interim Cash Payment Order (the “Policy Claim Rules”).

In accordance with the Policy Claim Rules, beginning in August 2012, policyholders that submit compliant Policy Claims by the end of a calendar month and which are permitted and approved by the Rehabilitator for payment are eligible to receive 25% of the amount of the permitted Policy Claim from the Segregated Account on or around the 20th day of the following month.

As of August 31, 2012, Ambac Assurance Corporation, as the management services provider for the Segregated Account (the “Management Services Provider”), had received most of the Policy Claims relating to the period between March 24, 2010 and July 31, 2012 (the “Moratorium Period”) that it had expected. However, as of August 31, 2012, it has not received Policy Claims relating to the Moratorium Period (the “Moratorium Period Policy Claims”) in respect of the following CUSIPs (the “Securities”) which it had expected to receive:

CUSIP

25457VAA4

25457VAB2

25457VAC0

25457VAH9

25457VAJ5

126673KF8

126673KQ4

126673KL5

126673KS0

126673TN2

126673TP7

126685AJ5

126685AK2

126685CS3

126685CX2

68620CAA8

68620CAB6

000759BT6

00079CAA7

126685DH6

126685DJ2

12668RAC2

26882JAA4

26882JAB2

26882JAC0

26882JAD8

76110WPC4

76110WPD2

76110WPF7

76110WPG5

749248AA8

749248AF7

749248AG5

76110WXQ4

76110WXT8

76110WXW1

126670NX2

126670NY0

126670NZ7

126670PA0

126670QS0

126670QT8

126670QU5

126670QV3

12668BBQ5

126685CZ7

126685DA1

126685DB9

126685DC7

881561W91

881561X25

8815612T0

8815612U7

23242EAB5

23242EAC3

23242EAD1

23242EAE9

23242EAF6

23243NAD0

23243NAE8

23243NAF5

23243NAG3

23243NAH1

23243NAJ7

126684AA7

126684AB5

126684AC3

126684AD1

126684AE9

126684AF6

76110WQA7

76110WQB5

25152DAB0

12666TAA4

12666TAB2

12666TAC0

12666TAD8

12666TAE6

12666TAF3

As these Moratorium Period Policy Claims were not received on or before the end of August 2012, they are not eligible for consideration for payment from the Segregated Account on September 20, 2012. Instead, these Moratorium Period Policy Claims will be evaluated for payment upon receipt of compliant Policy Claims in accordance with the Policy Claim Rules.

In addition, twelve Securities have not had Policy Claims submitted in respect of the period relating to the payment date falling in August 2012 and accordingly will also not be eligible for consideration for payment on September 20, 2012.  The twelve Securities are:

CUSIP

26882JAA4

126673KF8

126673KQ4

126673KN1

68620CAA8

68620CAB6

26882JAC0

26882JAD8

45667HAB7

45667HAC5

25152DAB0

16678RCC9

All other Moratorium Period Policy Claims received on or before August 31, 2012 are currently being evaluated by the Management Services Provider and will either be permitted, pended, disputed or disallowed in accordance with the Policy Claim Rules.

The information in Item 7.01 of this report is being furnished, not filed, pursuant to Regulation FD. Accordingly, the information in Item 7.01 of this report will not be incorporated by reference into any registration statement filed by the Company under the Securities Act of 1934, as amended, unless specifically identified therein as being incorporated therein by reference. The furnishing of the information in this report is not intended to, and does not, constitute a determination or admission by the Company, that the information in this report is material or complete or that investors should consider this information before making an investment decision with respect to any security of the Company or any of its affiliates.

Certain statements in this document and the exhibits are “forward looking statements” within the meaning of the Private Securities Litigation Reform Act. These statements are based on management’s current expectations and are subject to uncertainty and changes in circumstances. Actual results may differ materially from those included in these statements due to a variety of factors. More information about these factors is contained in Ambac’s filings with the Securities and Exchange Commission.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	Ambac Financial Group, Inc.
	(Registrant)
Dated: September 14, 2012
	By:	/s/ Stephen Ksenak
		Stephen Ksenak
		General Counsel