FINANCIAL GUARANTEE INSURANCE CONTRACTS

Amounts presented in this Note relate only to Ambac’s non-derivative insurance business for insurance policies issued to beneficiaries, including VIEs, for which we do not consolidate the VIE.

Net Premiums Earned:

Gross premiums are received either upfront (typical of public finance obligations) or in installments (typical of structured finance obligations). For premiums received upfront, an unearned premium revenue (“UPR”) liability is established, which is initially recorded as the cash amount received. For installment premium transactions, a premium receivable asset and offsetting UPR liability is initially established in an amount equal to: (i) the present value of future contractual premiums due (the “contractual” method) or (ii) if the underlying insured obligation is a homogenous pool of assets which are contractually prepayable, the present value of premiums to be collected over the expected life of the transaction (the “expected” method). An appropriate risk-free rate corresponding to the weighted average life of each policy and currency is used to discount the future premiums contractually due or expected to be collected. For example, U.S. dollar exposures are discounted using U.S. Treasury rates while exposures denominated in a foreign currency are discounted using the appropriate risk-free rate for the respective currency. The weighted average risk-free rate at September 30, 2014 and December 31, 2013, was 2.9% and 3.0%, respectively, and the weighted average period of future premiums used to estimate the premium receivable at September 30, 2014 and December 31, 2013, was 9.5 years and 9.6 years, respectively.

Insured obligations consisting of homogeneous pools for which Ambac uses expected future premiums to estimate the premium receivable and UPR include residential mortgage-backed securities. As prepayment assumptions change for homogenous pool transactions, or if there is an actual prepayment for a “contractual” method installment transaction, the related premium receivable and UPR are adjusted in equal and offsetting amounts with no immediate effect on earnings using new premium cash flows and the then current risk-free rate.

Generally, the priority for the payment of financial guarantee premiums to Ambac, as required by the bond indentures of the insured obligations, is very senior in the waterfall. Additionally, in connection with the allocation of certain liabilities to the Segregated Account, trustees are required under the Segregated Account Rehabilitation Plan and related court orders to continue to pay installment premiums, notwithstanding the Segregated Account Rehabilitation Proceedings. In evaluating the credit quality of the premium receivables, management evaluates the transaction waterfall structures and the internal ratings of the transactions underlying the premium receivables. As of September 30, 2014 and December 31, 2013, approximately 44% and 44% of the premium receivables related to transactions with non-investment grade internal ratings, comprised mainly of non-investment grade RMBS, student loan transactions and a certain asset-backed transaction, which comprised 6%, 6%, and 18% of the total premium receivables at September 30, 2014 and 7%, 7% and 17% of the total premium receivables at December 31, 2013, respectively. At September 30, 2014 and December 31, 2013, $16,063 and $15,262, respectively, of premium receivables were deemed uncollectable. Past due premiums on policies insuring non-investment grade obligations amounted to less than $500 at September 30, 2014.

Below is the gross premium receivable roll-forward (direct and assumed contracts) for the affected periods:



	Successor Ambac						Predecessor Ambac
	Period from January 1			Period from May 1			Period from January 1
	through			through			through
	September 30, 2014			September 30, 2013			April 30, 2013
Beginning premium receivable	$	1,453,021		$	1,531,631		$	1,620,621
Premium receipts	(100,646		)	(49,940		)	(48,296		)
Adjustments for changes in expected and contractual cash flows	(93,795		)	(70,900		)	(28,237		)
Accretion of premium receivable discount	29,644			17,232			14,740
Uncollectable premiums	(801		)	(14,800		)	(634		)
Other adjustments (including foreign exchange)	(20,791		)	22,787			(26,563		)
Ending premium receivable	$	1,266,632		$	1,436,010		$	1,531,631

Similar to gross premiums, premiums ceded to reinsurers are paid either upfront or in installments. Premiums ceded to reinsurers reduce the amount of premiums earned by Ambac from its financial guarantee insurance policies.

When a bond issue insured by Ambac Assurance has been retired, including those retirements due to refundings or calls, any remaining UPR is recognized at that time to the extent the financial guarantee contract is legally extinguished, causing accelerated premium revenue. For installment premium paying transactions, the recognition of any remaining UPR is offset by the reduction of the related premium receivable to zero (as it will not be collected as a result of the retirement), which may cause negative accelerated premium revenue. Successor Ambac’s accelerated premium revenue for retired obligations for the three and nine months ended September 30, 2014 was $9,192 and $42,296. Successor Ambac’s accelerated premium revenue for retired obligations for the three and five months ended September 30, 2013 were $19,698 and $32,747. Predecessor Ambac’s accelerated premium revenue for retired obligations for the four months ended April 30, 2013 was $36,433. Certain obligations insured by Ambac have been legally defeased whereby government securities are purchased by the issuer with the proceeds of a new bond issuance, or less frequently with other funds of the issuer, and held in escrow (a pre-refunding). The principal and interest received from the escrowed securities are then used to retire the Ambac-insured obligations at a future date either to their maturity date or a specified call date. Ambac has evaluated the provisions in certain financial guarantee insurance policies issued on legally defeased obligations and determined those insurance policies have not been legally extinguished and, therefore, premium revenue recognition has not been accelerated.

The effect of reinsurance on premiums written and earned was as follows:



	Period from July 1 through					Period from July 1 through
	September 30, 2014					September 30, 2013
	Written			Earned		Written			Earned
Direct	$	(13,700	)	$	68,685	$	(34,380	)	$	73,997
Assumed	—			23		—			24
Ceded	(2,805		)	3,877		(4,017		)	3,072
Net premiums	$	(10,895	)	$	64,831	$	(30,363	)	$	70,949



	Successor Ambac										Predecessor Ambac
	Period from January 1 through					Period from May 1 through					Period from January 1 through
	September 30, 2014					September 30, 2013					April 30, 2013
	Written			Earned		Written			Earned		Written			Earned
Direct	$	(64,952	)	$	222,894	$	(68,461	)	$	136,029	$	(14,125	)	$	138,468
Assumed	—			114		—			40		—			32
Ceded	(7,316		)	10,617		(7,055		)	7,081		(1,098		)	8,500
Net premiums	$	(57,636	)	$	212,391	$	(61,406	)	$	128,988	$	(13,027	)	$	130,000

The table below summarizes the future gross undiscounted premiums to be collected and future premiums earned, net of reinsurance at September 30, 2014:



	Future premiums to be collected ⁽¹⁾		Future premiums to be earned, net of reinsurance ⁽¹⁾
Three months ended:
December 31, 2014	$	30,343	$	44,483
Twelve months ended:
December 31, 2015	119,080		161,776
December 31, 2016	112,384		145,435
December 31, 2017	105,925		133,804
December 31, 2018	100,696		124,570
Five years ended:
December 31, 2023	444,832		514,973
December 31, 2028	352,220		360,470
December 31, 2033	224,150		209,229
December 31, 2038	85,447		88,255
December 31, 2043	28,756		27,365
December 31, 2048	11,920		12,028
December 31, 2053	2,253		3,324
December 31, 2058	31		84
Total	$	1,618,037	$	1,825,796

(1)

Future premiums to be collected are undiscounted and relate to the discounted premium receivable asset recorded on Ambac's balance sheet. Future premiums to be earned, net of reinsurance relate to the unearned premium liability and deferred ceded premium asset recorded on Ambac’s balance sheet. The use of contractual lives for many bond types which do not have homogeneous pools of underlying collateral is required in the calculation of the premium receivable as described above, which results in a higher premium receivable balance than if expected lives were considered. If installment paying policies are retired or prepay early, premiums reflected in the premium receivable asset and amounts reported in the above table for such policies may not be collected in the future. Future premiums to be earned also considers the use of contractual lives for many bond types which do not have homogeneous pools of underlying collateral, which results in higher unearned premium than if expected lives were considered. If those bonds types are retired early, premium earnings may be negative in the period of call or refinancing.

Loss and Loss Expense Reserves:

A loss reserve is recorded on the balance sheet on a policy-by-policy basis for: (a) unpaid claims and (b) the excess of the present value of expected net cash flows required to be paid under an insurance contract, over the unearned premium revenue for that contract. Unpaid Claims are defined as the sum of (i) claims presented and not yet paid for policies allocated to the Segregated Account, including Deferred Amounts (as defined in Note 1) and (ii) accrued interest on Deferred Amounts (generally at an effective rate of 5.1%) as required by the amended Segregated Account Rehabilitation Plan that became effective on June 12, 2014. Refer to Note 1 for further discussion of the amended Segregated Account Rehabilitation Plan. In accordance ASC Topic 944, unpaid claims are measured based on the estimated cost of settling the claims, which is principal plus accrued interest. The present value of expected net cash flows is defined as the present value of expected future claims to be paid under an insurance contract (including the impact of potential settlement outcomes upon future installment premiums) less the present value of potential future recoveries. In accordance with the financial guarantee insurance accounting guidance of ASC Topic 944, the approaches used to estimate expected future claims and expected future recoveries considers the likelihood of all possible outcomes. These estimation approaches are further described in Note 2, Basis Of Presentation And Significant Accounting Policies, in Part II, Item 8 “Financial Statements and Supplementary Data” included in Ambac’s Annual Report on Form 10-K for the year ended December 31, 2013.

For those policies where the potential recovery is less than the sum of unpaid claims and expected future claims, the resulting net cash outflow is recorded as a "Loss and loss expense reserves" liability. For those policies where losses have been paid, but not yet fully recovered, the potential recovery may be greater than the unpaid claims and expected future claims, and the resulting net cash inflow is recorded as a "Subrogation recoverable" asset. Below are the components of the Loss and loss expense reserves liability and the Subrogation recoverable asset at September 30, 2014 and December 31, 2013:



	September 30, 2014
	Unpaid Claims				Present Value of Expected Net Cash Flows
Balance Sheet Line Item	Claims		Accrued Interest		Claims and Loss Expenses		Recoveries			Unearned Premium Revenue			Gross Loss and Loss Expense Reserves
Loss and loss expense reserves	$	3,319,248	$	289,865	$	4,324,634	$	(1,488,476	)	$	(441,797	)	$	6,003,474
Subrogation recoverable	695,918		69,955		138,738		(1,393,848		)	—			(489,237		)
Totals	$	4,015,166	$	359,820	$	4,463,372	$	(2,882,324	)	$	(441,797	)	$	5,514,237



	December 31, 2013
	Unpaid Claims				Present Value of Expected Net Cash Flows
Balance Sheet Line Item	Claims		Accrued Interest		Claims and Loss Expenses		Recoveries			Unearned Premium Revenue			Gross Loss and Loss Expense Reserves
Loss and loss expense reserves	$	3,374,224	$	—	$	4,895,277	$	(1,797,805	)	$	(502,984	)	$	5,968,712
Subrogation recoverable	530,091		—		135,610		(1,164,179		)	—			(498,478		)
Totals	$	3,904,315	$	—	$	5,030,887	$	(2,961,984	)	$	(502,984	)	$	5,470,234

Below is the loss and loss expense reserve roll-forward, net of subrogation recoverable and reinsurance, for the affected periods:



	Successor Ambac						Predecessor Ambac
	Period from January 1			Period from May 1			Period from January 1
	through			through			through
	September 30, 2014			September 30, 2013			April 30, 2013
Beginning gross loss and loss expense reserves	$	5,470,234		$	5,572,672		$	6,122,140
Less reinsurance on loss and loss expense reserves	122,357			138,155			147,409
Beginning balance of net loss and loss expense reserves	5,347,877			5,434,517			5,974,731
Changes in the loss and loss expense reserves due to:
Current year:
Establishment of new loss and loss expense reserves, gross of RMBS subrogation and net of reinsurance	236			47,838			2,748
Claim and loss expense payments, net of subrogation and reinsurance	(4		)	(163		)	(58		)
Establishment of RMBS subrogation recoveries, net of reinsurance	—			(315		)	(159		)
Total current year	232			47,360			2,531
Prior years:
Change in previously established loss and loss expense reserves, gross of RMBS subrogation and net of reinsurance	(934		)	(322,165		)	(52,642		)
Claim and loss expense recoveries (payments), net of subrogation and reinsurance	67,736			(2,376		)	20,902
Change in previously established RMBS subrogation recoveries, net of reinsurance	(6,315		)	119,294			(12,596		)
Total prior years	60,487			(205,247		)	(44,336		)
Net change in loss and loss expense reserves	60,719			(157,887		)	(41,805		)
Net consolidation of certain VIEs	—			—			(498,409		)
Ending net loss and loss expense reserves	5,408,596			5,276,630			5,434,517
Add reinsurance on loss and loss expense reserves	105,641			123,425			138,155
Ending gross loss and loss expense reserves	$	5,514,237		$	5,400,055		$	5,572,672

The negative development in loss and loss expense reserves for Successor Ambac established in prior years for the nine months ended September 30, 2014 was primarily due to the addition of accrued interest on Deferred Amounts pursuant to the amended Segregated Account Rehabilitation Plan offset by improved performance in all sectors, including RMBS, international municipal and other structured finance. The positive development in loss and loss expense reserves for Successor Ambac established in prior years for the five months ended September 30, 2013 was primarily due to improved performance of the Student Loan and RMBS portfolios. The positive development in loss and loss expense reserves for Predecessor Ambac established in prior years for the four months ended April 30, 2013 was primarily due to improved performance of the RMBS portfolio offset by deterioration in certain Public Finance and Ambac Assurance UK Limited ("Ambac UK") credits.

The net change in net loss and loss expense reserves are included in losses and loss expenses in the Consolidated Statement of Total Comprehensive Income. For Successor Ambac, reinsurance recoveries of losses included in losses and loss expenses in the Consolidated Statements of Total Comprehensive Income were an expense of $3,885 and $16,045 for the three and nine months ended September 30, 2014, respectively. Reinsurance recoveries of losses included in losses and loss expenses in the Consolidated Statements of Total Comprehensive Income were an expense of $17,418 and $12,355 for the three and five months ended September 30, 2013, respectively. For Predecessor Ambac, reinsurance recoveries of losses included in losses and loss expenses in the Consolidated Statements of Total Comprehensive Income was a benefit of $3,889 for the four months ended April 30, 2013.

The tables below summarize information related to policies currently included in Ambac’s loss and loss expense reserves or subrogation recoverable at September 30, 2014 and December 31, 2013. Net par exposures include capital appreciation bonds which are reported at the par amount at the time of issuance of the insurance policy. The weighted average risk-free rate used to discount loss reserves at September 30, 2014 and December 31, 2013 was 2.7% and 3.2%, respectively.



Surveillance Categories (at September 30, 2014)
	I/SL			IA			II			III			IV			V			Total
Number of policies	36			26			41			86			164			1			354
Remaining weighted-average contract period (in years)	8			12			15			20			12			6			15
Gross insured contractual payments outstanding:
Principal	$	898,817		$	478,130		$	3,101,558		$	5,516,840		$	10,463,229		$	47		$	20,458,621
Interest	344,788			208,929			1,974,807			3,051,291			2,255,635			19			7,835,469
Total	$	1,243,605		$	687,059		$	5,076,365		$	8,568,131		$	12,718,864		$	66		$	28,294,090
Gross undiscounted claim liability ⁽¹⁾	$	16,134		$	11,620		$	176,815		$	2,474,118		$	7,832,910		$	60		$	10,511,657
Discount, gross claim liability	(1,124		)	(1,043		)	(18,676		)	(869,612		)	(894,405		)	(2		)	(1,784,862		)
Gross claim liability before all subrogation and before reinsurance	$	15,010		$	10,577		$	158,139		$	1,604,506		$	6,938,505		$	58		$	8,726,795
Less:
Gross RMBS subrogation⁽²⁾	—			—			—			(6		)	(2,231,234		)	—			(2,231,240		)
Discount, RMBS subrogation	—			—			—			—			16,810			—			16,810
Discounted RMBS subrogation, before reinsurance	—			—			—			(6		)	(2,214,424		)	—			(2,214,430		)
Less:
Gross other subrogation⁽³⁾	—			—			(18,030		)	(112,998		)	(622,128		)	—			(753,156		)
Discount, other subrogation	—			—			7,035			29,133			49,094			—			85,262
Discounted other subrogation, before reinsurance	—			—			(10,995		)	(83,865		)	(573,034		)	—			(667,894		)
Gross claim liability, net of all subrogation and discounts, before reinsurance	$	15,010		$	10,577		$	147,144		$	1,520,635		$	4,151,047		$	58		$	5,844,471
Less: Unearned premium revenue	(10,604		)	(3,441		)	(76,255		)	(280,123		)	(71,374		)	—			(441,797		)
Plus: Loss expense reserves	109			1,754			2,420			9,152			98,128			—			111,563
Gross loss and loss expense reserves	$	4,515		$	8,890		$	73,309		$	1,249,664		$	4,177,801		$	58		$	5,514,237
Reinsurance recoverable reported on Balance Sheet ⁽⁴⁾	$	64		$	896		$	1,393		$	112,683		$	(9,525	)	$	—		$	105,511


(1)	Gross undiscounted claim liability includes unpaid claims, including accrued interest on Deferred Amounts, on policies allocated to the Segregated Account and Ambac's estimate of expected future claims.


(2)	RMBS subrogation represents Ambac’s estimate of subrogation recoveries from RMBS transaction sponsors for representation and warranty breaches.


(3)	Other subrogation represents subrogation, including subrogation from RMBS transactions, other than subrogation as defined in (2) above.


(4)	Reinsurance recoverable reported on Balance Sheet includes reinsurance recoverables of $105,641 related to future loss and loss expenses and $(130) related to previously presented loss and loss expenses.



Surveillance Categories (at December 31, 2013)
	I/SL			IA			II			III			IV			V			Total
Number of policies	18			23			52			76			169			1			339
Remaining weighted-average contract period (in years)	13			19			17			19			11			6			14
Gross insured contractual payments outstanding:
Principal	$	834,708		$	1,125,284		$	3,464,420		$	5,597,387		$	11,184,943		$	47		$	22,206,789
Interest	506,903			871,751			2,130,271			2,331,222			2,556,968			18			8,397,133
Total	$	1,341,611		$	1,997,035		$	5,594,691		$	7,928,609		$	13,741,911		$	65		$	30,603,922
Gross undiscounted claim liability ⁽¹⁾	$	7,447		$	54,398		$	221,321		$	3,029,891		$	7,963,137		$	65		$	11,276,259
Discount, gross claim liability	(1,225		)	(6,726		)	(32,630		)	(1,299,032		)	(1,112,829		)	(6		)	(2,452,448		)
Gross claim liability before all subrogation and before reinsurance	$	6,222		$	47,672		$	188,691		$	1,730,859		$	6,850,308		$	59		$	8,823,811
Less:
Gross RMBS subrogation ⁽²⁾	—			—			—			(4,516		)	(2,211,333		)	—			(2,215,849		)
Discount, RMBS subrogation	—			—			—			15			9,236			—			9,251
Discounted RMBS subrogation, before reinsurance	—			—			—			(4,501		)	(2,202,097		)	—			(2,206,598		)
Less:
Gross other subrogation ⁽³⁾	—			—			(20,367		)	(116,145		)	(710,187		)	—			(846,699		)
Discount, other subrogation	—			—			9,522			36,125			45,666			—			91,313
Discounted other subrogation, before reinsurance	—			—			(10,845		)	(80,020		)	(664,521		)	—			(755,386		)
Gross claim liability, net of all subrogation and discounts, before reinsurance	$	6,222		$	47,672		$	177,846		$	1,646,338		$	3,983,690		$	59		$	5,861,827
Less: Unearned premium revenue	(4,060		)	(22,901		)	(95,550		)	(280,245		)	(100,228		)	—			(502,984		)
Plus: Loss expense reserves	—			11			2,257			1,658			107,465			—			111,391
Gross loss and loss expense reserves	$	2,162		$	24,782		$	84,553		$	1,367,751		$	3,990,927		$	59		$	5,470,234
Reinsurance recoverable reported on Balance Sheet	$	146		$	2,271		$	2,273		$	119,795		$	(3,236	)	$	—		$	121,249


(1)	Gross undiscounted claim liability includes unpaid claims, including accrued interest on Deferred Amounts, on policies allocated to the Segregated Account and Ambac's estimate of expected future claims.


(2)	RMBS subrogation represents Ambac’s estimate of subrogation recoveries from RMBS transaction sponsors for representation and warranty breaches.


(3)	Other subrogation represents subrogation, including subrogation from RMBS transactions, other than subrogation as defined in (2) above.


(4)	Reinsurance recoverable reported on Balance Sheet includes reinsurance recoverables of $122,357 related to future loss and loss expenses and $(1,108) related to previously presented loss and loss expenses.

Ambac records estimated subrogation recoveries for breaches of representations and warranties (R&W) by sponsors of certain RMBS transactions. Prior to the June 30, 2014 reporting period, Ambac utilized the Adverse and Random Sample approaches to estimate R&W subrogation recoveries for certain RMBS transactions. For a discussion of these subrogation recovery approaches, see Note 2, Basis Of Presentation And Significant Accounting Policies, in Part II, Item 8 “Financial Statements and Supplementary Data” included in Ambac’s Annual Report on Form 10-K for the year ended December 31, 2013. Beginning with the June 30, 2014 reporting period, as a result of gaining further access to loan files, the Random Sample approach has been utilized for all transactions which were previously evaluated using the Adverse Sample approach.

Ambac has recorded RMBS subrogation recoveries of $2,214,430 ($2,189,967 net of reinsurance) and $2,206,598 ($2,183,652 net of reinsurance) at September 30, 2014 and December 31, 2013, respectively. The balance of RMBS subrogation recoveries and the related claim liabilities, by estimation approach, at September 30, 2014 and December 31, 2013, are as follows:



	September 30, 2014
Approach	Gross loss reserves before subrogation recoveries ⁽¹⁾		Subrogation recoveries ⁽²⁾⁽³⁾			Gross loss reserves after subrogation recoveries
Random samples ⁽⁴⁾	$	2,670,550	$	(2,214,430	)	$	456,120
Totals	$	2,670,550	(2,214,430		)	$	456,120



	December 31, 2013
Approach	Gross loss reserves before subrogation recoveries ⁽¹⁾		Subrogation recoveries ^(2) (3)		Gross loss reserves after subrogation recoveries
Adverse samples	$	2,084,911	(1,252,773	)	$	832,138
Random samples ⁽⁴⁾	1,078,861		(953,825	)	125,036
Totals	$	3,163,772	(2,206,598	)	$	957,174


(1)	Includes unpaid RMBS claims, including accrued interest on Deferred Amounts, on policies allocated to the Segregated Account.

(2)

The amount of recorded subrogation recoveries related to each securitization is limited to ever-to-date paid and unpaid losses plus the present value of expected cash flows for each policy. To the extent losses have been paid but not yet fully recovered, the recorded amount of RMBS subrogation recoveries may exceed the sum of the unpaid claims and the present value of expected cash flows for a given policy. The net cash inflow for these policies is recorded as a “Subrogation recoverable” asset. For those transactions where the subrogation recovery is less than the sum of unpaid claims and the present value of expected cash flows, the net cash outflow for these policies is recorded as a “Loss and loss expense reserves” liability.

(3)

The sponsor’s repurchase obligation may differ depending on the terms of the particular transaction and the status of the specific loan, such as whether it is performing or has been liquidated or charged off. The estimated subrogation recovery for these transactions is based primarily on loan level data provided through trustee reports received in the normal course of our surveillance activities or provided by the sponsor. While this data may not include all the components of the sponsor’s contractual repurchase obligation we believe it is the best information available to estimate the subrogation recovery.


(4)	From time to time R&W subrogation may include estimates of potential sponsor settlements that are currently in negotiation but have not been subject to a sampling approach. However, such estimates are not material to Ambac’s financial results and therefore are included in the Random Sample section of this table.

Below is the rollforward of RMBS subrogation, by estimation approach, for the affected periods:



	Random sample			Adverse sample			Total
Successor Ambac:
Discounted RMBS subrogation (gross of reinsurance) at January 1, 2014	$	953,825		$	1,252,773		$	2,206,598
Changes recognized in 2014:
Additional transactions reviewed	24,565			—			24,565
Changes in estimation approach ⁽¹⁾	1,272,532			(1,218,681		)	53,851
Impact of Sponsor Actions ⁽²⁾	(90,000		)	—			(90,000		)
All other changes ⁽³⁾	53,508			(34,092		)	19,416
Discounted RMBS subrogation (gross of reinsurance) at September 30, 2014	2,214,430			—			2,214,430



	Random sample			Adverse sample			Total
Successor Ambac:
Discounted RMBS subrogation (gross of reinsurance) at May 1, 2013	$	1,004,252		$	1,478,666		$	2,482,918
Changes recognized through September 30, 2013:
Additional transactions reviewed	2,426			—			2,426
Changes in estimation approach ⁽¹⁾	—			—			—
Impact of Sponsor Actions ⁽²⁾	—			—			—
All other changes ⁽³⁾	(48,910		)	(74,578		)	(123,488		)
Discounted RMBS subrogation (gross of reinsurance) at September 30, 2013	$	957,768		$	1,404,088		$	2,361,856



	Random sample			Adverse sample		Total
Predecessor Ambac
Discounted RMBS subrogation (gross of reinsurance) at January 1, 2013	$	1,080,408		$	1,442,817	$	2,523,225
Changes recognized through April 30, 2013:
Additional transactions reviewed	—			—		—
Changes in estimation approach ⁽¹⁾	—			—		—
Impact of sponsor actions ⁽²⁾	(54,195		)	—		(54,195		)
All other changes ⁽³⁾	(21,961		)	35,849		13,888
Discounted RMBS subrogation (gross of reinsurance) at April 30, 2013	$	1,004,252		$	1,478,666	$	2,482,918


(1)	Represents estimated subrogation for those transactions previously evaluated using the Adverse Sample approach, which are evaluated using a Random Sample approach beginning June 30, 2014. The amounts shown in the Random and Adverse Sample columns are different as a result of the differences in estimation approaches.


(2)	Sponsor actions include loan repurchases, direct payments to Ambac, and other contributions from sponsors.

(3)

All other changes which may impact RMBS subrogation recoveries include changes in actual or projected collateral performance, changes in the creditworthiness of a sponsor, and/or the projected timing of recoveries. All other changes may also include estimates of potential sponsor settlements that are currently in negotiation but have not been subject to a sampling approach. However, such estimates are not material to Ambac’s financial results and therefore are included in the Random Sample column of this table.

Insurance intangible asset:

The insurance intangible amortization expense is included in insurance intangible amortization on the Consolidated Statements of Total Comprehensive Income for Successor Ambac. For the three and nine months ended September 30, 2014 the insurance intangible amortization expense was $41,908 and $109,878, respectively. For the three and five months ending September 30, 2013 the insurance intangible amortization expense was $37,473 and $62,425, respectively. As of September 30, 2014 and December 31, 2013, the insurance intangible asset was $1,475,012 and $1,597,965, respectively. The September 30, 2014 and December 31, 2013 insurance intangible asset is net of accumulated amortization of $209,293 and $100,767, respectively.

The estimated future amortization expense for the insurance intangible asset is as follows:



2014	$	33,238
2015	122,516
2016	110,532
2017	100,993
2018	93,711
Thereafter	1,014,022