Monterey Bay Military Housing, LLC, et al. v. Ambac Assurance Corporation, et al. (United States District Court, Northern District of California, San Jose Division, Case No. 17-cv-04992-BLF, filed August 28, 2017). Plaintiffs, the corporate developers of various military housing projects, filed an amended complaint on October 27, 2017 against Ambac Assurance, a former employee of Ambac Assurance, and certain unaffiliated persons and entities, asserting claims for (i) violation of 18 U.S.C §§ 1962(c) and 1962(d) (civil Racketeer Influenced and Corrupt Organizations Act (“RICO”) and conspiracy to commit civil RICO), (ii) breach of fiduciary duty, (iii) aiding and abetting breach of fiduciary duty, (iv) fraudulent misrepresentation, (v) fraudulent concealment and (vi) conspiracy to commit fraud. The claims relate to bonds and debt certificates (insured by Ambac Assurance) that were issued to finance the renovation and construction of housing at certain military bases. Plaintiffs allege that defendants secretly conspired to overcharge plaintiffs for the financing of the projects and directed the excess profits to themselves. Plaintiffs allege defendants generated these excess profits by supposedly charging inflated interest rates, manipulating “shadow ratings,” charging unnecessary fees, and hiding evidence of their alleged wrongdoing. Plaintiffs seek,

among other things, compensatory damages, disgorgement of profits and fees, punitive damages, trebled damages and attorneys’ fees. Ambac and the other defendants filed motions to dismiss the amended complaint on November 13, 2017. On July 17, 2018, the court granted Ambac Assurance’s and the other defendants’ motion to dismiss the first amended complaint without prejudice. On December 17, 2018, Plaintiffs filed a second amended complaint. On February 15, 2019, Ambac and the other defendants filed a motion to dismiss the second amended complaint. On September 26, 2019, the court issued a decision denying defendants’ motion to dismiss and sua sponte reconsidering its previous denial of defendants’ motion to transfer venue to the Southern District of New York (“SDNY”). On October 4, 2019, the case was transferred to the SDNY. On October 10, 2019, the defendants filed motions in the SDNY to vacate or reconsider the decision by the Northern District of California on the defendants’ motion to dismiss. On October 24, 2019, plaintiffs filed their brief in opposition to defendants' motions to vacate or reconsider, and on October 31, 2019, defendants filed their reply briefs in further support of their motions. On November 20, 2019, the court ordered that the defendants’ answers to the second amended complaint would be due seven days after the court issues a decision on their motions.

Financial Oversight and Management Board for Puerto Rico, et al. v. Autonomy Master Fund Limited, et al. (United States District Court, District of Puerto Rico, No. 19-ap-00291, filed May 2, 2019). On May 2, 2019, the Financial Oversight and Management Board for Puerto Rico (the "Oversight Board"), together with the Official Committee of Unsecured Creditors for the Commonwealth (the "Committee") filed an adversary proceeding against certain parties that filed proofs of claim on account of general obligation bonds issued by the Commonwealth of Puerto Rico, including Ambac Assurance. The complaint seeks declarations that the general obligation bonds are unsecured obligations and, in the alternative, seeks to avoid any security interests that holders of such bonds may have. On June 12, 2019, a group of general obligation bondholders moved to dismiss the complaint. On June 13, 2019, at the request of the Plaintiffs, the District Court stayed the case until September 1, 2019 as to all defendants; on July 24, 2019, the District Court referred this matter to mediation and ordered it stayed during the pendency of such mediation. Ambac Assurance filed a statement of position and reservation of rights on February 5, 2020; certain other defendants filed motions to dismiss on this same date. On February 9, 2020, the Oversight Board announced that it intends to file, and to seek to confirm, an amended plan of adjustment (the “Amended POA”). The team of mediators designated in the Commonwealth’s restructuring cases (the “Mediation Team”) has recommended this case be stayed while the Oversight Board attempts to confirm the Amended POA. The District Court has not yet ruled on this recommendation.

Financial Oversight and Management Board for Puerto Rico, et al. v. Ambac Assurance Corporation, et al. (United States District Court, District of Puerto Rico, No. 19-ap-00363, filed May 20, 2019). On May 20, 2019, the Oversight Board, together with the Committee, as Plaintiffs, filed an adversary proceeding against certain parties that filed proofs of claim on account of bonds issued by the Puerto Rico Highways and Transportation Authority ("PRHTA"), including Ambac Assurance. The complaint seeks declarations that the PRHTA bonds are only secured by revenues

on deposit with the PRHTA Fiscal Agent and that PRHTA bondholders have no security interest in any other property of PRHTA or the Commonwealth, and in the alternative, to the extent such other security interests exist, the complaint seeks to avoid other security interests that holders of PRHTA bonds may have. On June 14, 2019, at the request of the Plaintiffs, the District Court stayed the case until September 1, 2019 as to all defendants; on July 24, 2019, the District Court referred this matter to mediation and ordered it stayed during the pendency of such mediation. On December 19, 2019, the District Court ordered that this matter will remain stayed pending further order of the District Court pursuant to the Oversight Board’s initiation of a separate adversary proceeding concerning PRHTA bonds (No. 20-ap-00005, discussed below).

Financial Oversight and Management Board for Puerto Rico v. Ambac Assurance Corp., et al. (United States District Court, District of Puerto Rico, No. 20-ap-00003, filed Jan. 16, 2020). Pursuant to an order of the District Court setting out an agreed schedule for litigation submitted by the Mediation Team, on January 16, 2020, the Oversight Board filed an adversary proceeding against monoline insurers insuring bonds issued by the Puerto Rico Infrastructure Financing Authority (“PRIFA”) and the PRIFA bond trustee, all of which Defendants filed proofs of claim against the Commonwealth relating to PRIFA bonds. The complaint seeks to disallow Defendants’ proofs of claim against the Commonwealth in their entirety, including for lack of secured status. Briefing on motions to dismiss is expected to conclude on May 13, 2020, and a hearing is scheduled for June 2020.

Financial Oversight and Management Board for Puerto Rico v. Ambac Assurance Corp., et al. (United States District Court, District of Puerto Rico, No. 20-ap-00004, filed Jan. 16, 2020). Pursuant to an order of the District Court setting out an agreed schedule for litigation submitted by the Mediation Team, on January 16, 2020, the Oversight Board filed an adversary proceeding against monoline insurers insuring bonds issued by the Puerto Rico Convention Center District Authority (“PRCCDA”) and the PRCCDA bond trustee, all of which Defendants filed proofs of claim against the Commonwealth relating to PRCCDA bonds. The complaint seeks to disallow Defendants’ proofs of claim against the Commonwealth in their entirety, including for lack of secured status. Briefing on motions to dismiss is expected to conclude on May 13, 2020, and a hearing is scheduled for June 2020.

Financial Oversight and Management Board for Puerto Rico v. Ambac Assurance Corp., et al. (United States District Court, District of Puerto Rico, No. 20-ap-00005, filed Jan. 16, 2020). Pursuant to an order of the District Court setting out an agreed schedule for litigation submitted by the Mediation Team, on January 16, 2020, the Oversight Board filed an adversary proceeding against monoline insurers insuring bonds issued by PRHTA, certain PRHTA bondholders, and the PRHTA fiscal agent for bondholders, all of which Defendants filed proofs of claim against the Commonwealth relating to PRHTA bonds. The complaint seeks to disallow Defendants’ proofs of claim against the Commonwealth in their entirety, including for lack of secured status. Briefing on motions to dismiss is expected to conclude on May 13, 2020, and a hearing is scheduled for June 2020.

Financial Oversight and Management Board for Puerto Rico v. Ambac Assurance Corp., et al. (United States District Court, District of Puerto Rico, No. 20-ap-00007, filed Jan. 16, 2020). Pursuant to an order of the District Court setting out an agreed schedule for litigation submitted by the Mediation Team, on January 16, 2020, the Oversight Board and the Committee filed an adversary proceeding against monoline insurers insuring bonds issued by PRHTA, certain PRHTA bondholders, and the PRHTA fiscal agent for bondholders, all of which Defendants filed proofs of claim against PRHTA relating to PRHTA bonds. The complaint seeks to disallow portions of Defendants’ proofs of claim against the PRHTA, including for lack of secured status. Briefing on motions to dismiss is expected to conclude on May 13, 2020, and a hearing is scheduled for June 2020.

NC Residuals Owners Trust, et al. v. Wilmington Trust Co., et al. (Delaware Court of Chancery, C.A. No. 2019-0880, filed Nov. 1, 2019). On November 1, 2019, Ambac Assurance became aware of a new declaratory judgment action filed by certain residual equity interest holders (“NC Owners” or “Plaintiffs”) in fourteen National Collegiate Student Loan Trusts (the “Trusts”) against Wilmington Trust Company, the Owner Trustee for the Trusts; U.S. Bank National Association, the Indenture Trustee; GSS Data Services, Inc., the Administrator; and Ambac Assurance. Plaintiffs seek a number of judicial determinations, including that the Owner Trustee and Administrator are required to follow the NC Owners’ issuer orders and cause the invoices of certain retained professional advisors to be paid from the assets of the Trusts as Owner Trustee expenses and Administrator expenses. Plaintiffs also seek a declaration that, with respect to the Trusts, the Owner Trustee does not owe fiduciary or extracontractual duties to any party except the NC Owners. Finally, Plaintiffs request their costs and attorney’s fees incurred in connection with this action. On January 21, 2020, the presiding Vice Chancellor entered an order consolidating the action with previously filed litigation relating to the Trusts. On January 31, 2020, Plaintiffs filed an amended complaint containing an expanded list of requested judicial determinations. On February 13, 2020, Ambac Assurance, the Owner Trustee, the Indenture Trustee, and other parties filed declaratory judgment counterclaims.

Ambac Assurance’s estimates of projected losses for RMBS transactions consider, among other things, the RMBS transactions’ payment waterfall structure, including the application of interest and principal payments and recoveries, and depend in part on our interpretations of contracts and other bases of our legal rights. From time to time, bond trustees and other transaction participants have employed different contractual interpretations and have commenced, or threatened to commence, litigation to resolve these differences. It is not possible to predict whether additional disputes will arise, nor the outcomes of any potential litigation. It is possible that there could be unfavorable outcomes in this or other disputes or proceedings and that our interpretations may prove to be incorrect, which could lead to changes to our estimate of loss reserves.

It is not reasonably possible to predict whether additional suits will be filed or whether additional inquiries or requests for information will be made, and it is also not possible to predict the outcome of litigation, inquiries or requests for information. It is possible that there could be unfavorable outcomes in these or other proceedings. Legal accruals for litigation against the Company which are probable and reasonably estimable, and management's estimated range of loss for such matters, are either not applicable or are not material to the operating results or financial position of the Company. For the litigation matters the Company is defending that do not meet the “probable and reasonably estimable” accrual threshold and where no loss estimates have been provided above, management is unable to make a meaningful estimate of the amount or range of loss that could result from unfavorable outcomes. Under some circumstances, adverse results in any such proceedings could be material to our business, operations, financial position, profitability or cash flows. The Company believes that it has substantial defenses to the claims above and, to the extent that these actions proceed, the Company intends to defend itself vigorously; however, the Company is not able to predict the outcomes of these actions.

Assured Guaranty Corp., Assured Guaranty Municipal Corp., and Ambac Assurance Corporation v. Alejandro Garcia Padilla, et al. (United States District Court, District of Puerto Rico No. 3:16-cv-01037, filed January 7, 2016). Ambac Assurance, along with co-plaintiffs Assured Guaranty Corp. and Assured Guaranty Municipal Corp., filed a complaint for declaratory and injunctive relief to protect its rights against the illegal clawback of certain revenue by the Commonwealth of Puerto Rico. Defendants moved to dismiss on January 29, 2016. On October 4, 2016, the court denied the Defendants’ motions to dismiss. On October 14, 2016, Defendants filed a Notice of Automatic Stay, asserting that

Plaintiffs’ claims have been rendered moot and further asserting that the case was automatically stayed under section 405 of the Puerto Rico Oversight, Management and Economic Stability Act ("PROMESA"). On October 28, 2016, Plaintiffs informed the court that neither party was currently challenging the stay, and expressly reserved their right to seek to lift the stay at any time. Plaintiffs also objected to Defendants’ assertion that the case should be dismissed as moot. PROMESA’s litigation stay expired on May 2, 2017. On May 3, 2017, the Oversight Board filed a petition to adjust the Commonwealth’s debts under Title III of PROMESA, resulting in an automatic stay of litigation against the Commonwealth. On May 17, 2017, the court issued an order staying this case until further order of the court.

Ambac Assurance Corporation v. Puerto Rico Highways and Transportation Authority (United States District Court, District of Puerto Rico, No. 16-cv-1893, filed May 10, 2016). Ambac Assurance filed a complaint against the Puerto Rico Highways and Transportation Authority ("PRHTA") on May 10, 2016, alleging breach of fiduciary duty and breach of contract in connection with PRHTA’s extension of an existing toll road concession agreement. The complaint alleges that it was inappropriate for PRHTA to enter into the extension agreement in its current state of financial distress because PRHTA has no control over, and is unlikely to receive, the proceeds of the transaction. Ambac Assurance also filed related motions seeking the appointment of a provisional receiver for PRHTA and expedited discovery. On May 21, 2017, the Oversight Board filed a petition to adjust PRHTA’s debts under Title III of PROMESA, resulting in an automatic stay of litigation against PRHTA. On May 24, 2017, the court issued an order staying this case until further order of the court.

Lex Claims, LLC et al. v. Alejandro Garcia Padilla et al. (United States District Court, District of Puerto Rico, No. 16-2374, filed July 20, 2016). On October 7, 2016, certain General Obligation bondholder Plaintiffs in an action to which Ambac Assurance was not then a party filed a motion for leave to amend an existing complaint, adding the Puerto Rico Sales Tax Financing Corporation ("COFINA"), COFINA’s executive director, and the trustee for the COFINA bonds as Defendants, and asserting numerous claims that challenged the legal validity of the COFINA structure and seek injunctive relief requiring the sales and use tax proceeds securing COFINA’s bonds to be transferred to the Puerto Rico Treasury. On February 17, 2017, the court permitted Ambac Assurance to intervene. On May 3, 2017, a petition under Title III of PROMESA was filed on behalf of the Commonwealth of Puerto Rico, and on May 5, 2017, a petition under Title III of PROMESA was filed on behalf of COFINA, resulting in an automatic stay of litigation against the Commonwealth and COFINA (respectively). On May 17, 2017, the court issued an order staying this case until further order of the court. On October 19, 2018, the Oversight Board filed (i) a disclosure statement and a plan of adjustment for COFINA (the “COFINA Plan”) in the COFINA Title III case incorporating a resolution of the dispute between the Commonwealth and COFINA concerning entitlement to sales and use taxes (the “Commonwealth-COFINA Dispute”), and (ii) a motion under Bankruptcy Rule 9019 in the Commonwealth Title III case for approval of the settlement of the Commonwealth-COFINA Dispute (the “9019 Motion”). On February 4, 2019 the District Court granted the 9019 Motion and confirmed the COFINA Plan, which resolves the dispute in this case. The

COFINA Plan became effective on February 12, 2019. Following confirmation of the COFINA Plan, several parties filed notices of appeal of the District Court’s confirmation order. On April 12, 2019, the Oversight Board and the Puerto Rico Fiscal Agency and Financial Advisory Authority ("AAFAF") moved to dismiss these appeals as equitably moot because the COFINA Plan has been consummated. On August 7 and October 4, 2019, the First Circuit denied the motions to dismiss, but without prejudice to reconsideration of the mootness issue by the panel that decides the appeals. Briefing on the merits of the appeals is ongoing before the First Circuit.

Ambac Assurance Corporation v. Puerto Rico, et al. (United States District Court, District of Puerto Rico, No. 17-1567, filed May 2, 2017). On May 2, 2017, Ambac Assurance filed a complaint seeking a declaration that the Commonwealth’s Fiscal and Economic Growth Plan (the "FEGP") and a recently enacted statute called the “Fiscal Plan Compliance Law” are unconstitutional and unlawful because they violate the Contracts, Takings, and Due Process Clauses of the U.S. Constitution, are preempted by PROMESA, and are unlawful transfers of property from COFINA to the Commonwealth in violation of PROMESA. On May 3, 2017, a petition under Title III of PROMESA was filed on behalf of the Commonwealth of Puerto Rico, and on May 5, 2017, a petition under Title III of PROMESA was filed on behalf of COFINA, resulting in an automatic stay of litigation against COFINA. On May 17, 2017, the court issued an order staying this case until further order of the court. On February 4, 2019, the District Court granted the 9019 Motion and confirmed the COFINA Plan. The COFINA Plan became effective on February 12, 2019. Following confirmation of the COFINA Plan, several parties filed notices of appeal of the District Court’s confirmation order. Ambac Assurance anticipates that this case will be voluntarily dismissed given the effectiveness of the COFINA Plan.

Ambac Assurance Corporation v. Puerto Rico, et al. (United States District Court, District of Puerto Rico, No. 17-1568, filed May 2, 2017). On May 2, 2017, Ambac Assurance filed a complaint alleging that various moratorium laws and executive orders enacted by the Commonwealth to claw back funds from PRIFA, PRHTA, and PRCCDA bonds violate the Contracts, Takings, and Due Process Clauses of the U.S. Constitution, are preempted by PROMESA, and unlawfully transfer PRHTA, PRCCDA, and PRIFA property to the Commonwealth. On May 3, 2017, a petition under Title III of PROMESA was filed on behalf of the Commonwealth of Puerto Rico and on May 21, 2017, a petition under Title III of PROMESA was filed on behalf of PRHTA, resulting in an automatic stay of litigation against the Commonwealth and PRHTA (respectively). On May 17, 2017, the court issued an order staying this case until further order of the court.

Ambac Assurance Corporation v. U.S. Department of Treasury et al. (United States District Court, District of Columbia, No. 17-809, filed May 2, 2017). On May 2, 2017, Ambac Assurance filed a complaint against the U.S. Department of Treasury and Steven Mnuchin, in his official capacity as Secretary of the Treasury, alleging that Puerto Rico’s ongoing diversion of rum taxes from PRIFA violates the Contracts, Takings, and Due Process Clauses of the U.S. Constitution, and seeking an equitable lien on all rum taxes possessed by the U.S. Treasury, and an injunction preventing

Ambac Assurance Corporation v. Bank of New York Mellon (United States District Court, Southern District of New York. No. 1:17-cv-03804, filed May 2, 2017). On May 2, 2017, Ambac Assurance filed a complaint in New York State Supreme Court, New York County, against the trustee for the COFINA bonds, Bank of New York Mellon ("BNY"), alleging breach of fiduciary, contractual, and other duties for failing to adequately and appropriately protect the holders of certain Ambac Assurance-insured senior COFINA bonds. On May 19, 2017, BNY filed a notice of removal of this action from New York state court to the United States District Court for the Southern District of New York. On May 30, 2017, the United States District Court for the District of Puerto Rico entered an order in an adversary proceeding brought by BNY (No. 1:17-ap-00133) staying this litigation pending further order of the court. The COFINA Plan became effective on February 12, 2019, and, pursuant to the District Court’s confirmation order, this litigation is permitted to continue, with Ambac’s claims against BNYM being limited to those for gross negligence, willful misconduct and intentional fraud. Following confirmation of the COFINA Plan, several parties filed notices of appeal of the District Court’s confirmation order to the First Circuit Court of Appeals. On April 12, 2019, the Oversight Board and AAFAF moved to dismiss these appeals as equitably moot because the COFINA Plan has been consummated. On August 7 and October 4, 2019, the First Circuit denied the motions to dismiss, but without prejudice to reconsideration of the mootness issue by the panel that decides the appeals. Briefing on the merits of the appeals is ongoing before the First Circuit.

Bank of New York Mellon v. COFINA, et al. (United States District Court, District of Puerto Rico, No. 1:17-ap-00133, filed May 16, 2017). On May 16, 2017, BNY filed an interpleader action styled as an adversary proceeding against COFINA and certain creditors of COFINA, including Ambac Assurance, that have made competing claims of entitlement to funds held by BNY in order to determine the parties’ respective entitlements to the funds. BNY also sought a release of liability in association with the COFINA funds in its possession.. On September 27, 2018, the court terminated competing motions for summary judgment without prejudice in light of the pending agreement in principle between the agent for COFINA and the agent for the Commonwealth in adversary proceeding no. 1:17-ap-00257 (the “Commonwealth-COFINA Dispute,” discussed below). On October 19, 2018, the Oversight Board filed (i) a disclosure statement and the COFINA Plan in the COFINA Title III case incorporating a resolution of the Commonwealth-COFINA Dispute, and (ii) the 9019 Motion in the Commonwealth Title III case for approval of the settlement of the Commonwealth-COFINA Dispute. On February 4, 2019 the District Court granted the 9019 Motion and confirmed the COFINA Plan, which resolves the dispute in this case. The COFINA Plan became effective on February 12, 2019. Following confirmation of the COFINA Plan, several parties filed notices of appeal of the District Court’s confirmation order to the First Circuit

Ambac Assurance Corporation v. Puerto Rico, et al. (United States District Court, District of Puerto Rico, No. 1:17-ap-00159, filed June 8, 2017). On June 8, 2017, Ambac Assurance filed an adversary complaint in the Commonwealth’s Title III case against the Commonwealth, PRHTA, the Oversight Board, AAFAF, and other Commonwealth government officers. Ambac Assurance challenges the Commonwealth’s clawback of funds from the PRIFA, PRHTA, and PRCCDA bonds under the Contracts, Takings, and Due Process Clauses of the U.S. Constitution and under PROMESA. The complaint further seeks a declaration that revenues pledged to the PRHTA bonds are “special revenues” under Sections 922 and 928 of the Bankruptcy Code, and an injunction compelling Defendants to remit the pledged special revenues to PRHTA for payment of the PRHTA bonds. On July 7, 2017, Ambac Assurance filed an amended complaint that added an additional claim for relief: a declaration that the funds held in the PRHTA reserve accounts are property of the PRHTA bondholders. On July 28, 2017, Defendants moved to dismiss Ambac Assurance’s complaint, which Ambac Assurance opposed. On February 27, 2018, the District Court granted Defendants’ motion to dismiss. On March 9, 2018, Ambac Assurance appealed this ruling to the First Circuit Court of Appeals. On June 24, 2019, the First Circuit affirmed the District Court's dismissal of Ambac Assurance's claims for relief on the grounds that PROMESA deprives courts of jurisdiction to review the Oversight Board's certification determinations, and that PROMESA prohibits the Title III court from interfering with the political or governmental powers of the Commonwealth or the Commonwealth's property or revenues. On January 13, 2020, the Supreme Court of the United States denied Ambac Assurance’s petition for certiorari.

Official Committee of Unsecured Creditors v. Whyte (United States District Court, District of Puerto Rico, No. 1:17-ap-00257, filed September 8, 2017) (the Commonwealth-COFINA Dispute). On August 10, 2017, the court approved a stipulation between the Oversight Board, the Commonwealth, COFINA, and certain creditor parties, including Ambac Assurance, to resolve the Commonwealth-COFINA Dispute regarding entitlement to sales and use taxes. The stipulation provided that separate agents for COFINA and the Commonwealth would litigate the dispute while preserving the ability of interested parties, to participate in the litigation. On September 8, 2017, the Commonwealth Agent filed an adversary proceeding against the COFINA Agent challenging the COFINA structure on various grounds. The Commonwealth Agent filed a revised complaint on October 25, 2017, making technical corrections to the original complaint. Ambac Assurance made a motion to intervene in this action, which the court granted on November 21, 2017. The Commonwealth Agent filed an amended complaint on January 16, 2018, largely re-stating its original causes of action to fall within the parameters of the dispute set by the court. After extensive motion practice, on September

27, 2018, the court terminated competing summary judgment motions without prejudice in light of a pending agreement in principle between the Commonwealth Agent and COFINA Agent. On October 19, 2018, the Oversight Board filed (i) a disclosure statement and the COFINA Plan in the COFINA Title III case incorporating a resolution of the Commonwealth-COFINA Dispute, and (ii) the 9019 Motion in the Commonwealth Title III case for approval of the settlement of the Commonwealth-COFINA Dispute. On February 4, 2019, the District Court granted the 9019 Motion and confirmed the COFINA Plan, which resolves the dispute in this case. The COFINA Plan became effective on February 12, 2019. On February 21, 2019, on the joint motion of the agents for the Commonwealth and COFINA, the Oversight Board, AAFAF, and all participating interested parties, the District Court dismissed this case with prejudice. Following confirmation of the COFINA Plan, several parties filed notices of appeal of the District Court’s confirmation order to the First Circuit Court of Appeals. On April 12, 2019, the Oversight Board and AAFAF moved to dismiss these appeals as equitably moot because the COFINA Plan has been consummated. On August 7 and October 4, 2019, the First Circuit denied the motions to dismiss, but without prejudice to reconsideration of the mootness issue by the panel that decides the appeals. Briefing on the merits of the appeals is ongoing before the First Circuit.

Financial Oversight and Management Board for Puerto Rico v. Public Buildings Authority (United States District Court, District of Puerto Rico, No. 1:18-ap-00149, filed December 21, 2018). On December 21, 2018, the Oversight Board, together with the Committee, as Plaintiffs, filed a complaint against the Puerto Rico Public Buildings Authority (“PBA”) seeking declaratory judgment that the leases between PBA and its lessees-many of whom are agencies and instrumentalities of the Commonwealth-are “disguised financings,” not true leases, and therefore should not be afforded administrative expense priority under the Bankruptcy Code. On March 12, 2019, Ambac Assurance and other interested parties were permitted to intervene in order to argue that the PBA leases are valid leases, and are entitled to administrative expense treatment under the Bankruptcy Code. Certain intervenor-defendants filed counterclaims for declarations to this effect, and a motion for judgment on the pleadings. On June 16, 2019, the Oversight Board announced that it had entered into a plan support agreement ("PSA") with certain general obligation and PBA bondholders that includes a proposed resolution of claim objections to and issues surrounding both general obligation and PBA bonds, including a proposed settlement of this adversary proceeding. On June 27, 2019, the Oversight Board moved to stay this adversary proceeding while it pursues confirmation of the plan contemplated in the PSA. On July 9, 2019, Ambac Assurance objected to the motion to stay. On July 24, 2019, the District Court referred this matter to mediation and ordered it stayed during the pendency of such mediation. On September 27, 2019, the Oversight Board filed a joint plan of adjustment and disclosure statement for the Commonwealth, PBA, and the Employees’ Retirement System for Puerto Rico. On February 9, 2020, the Oversight Board executed a new plan support agreement with additional creditors (the “New PSA”) and announced that it intends to file, and seek to confirm, the Amended POA. The Mediation Team has recommended this case continue to be stayed while the

In re Financial Oversight and Management Board for Puerto Rico (United States District Court, District of Puerto Rico, No. 1:17-bk-03283), Omnibus Objection of (I) Financial Oversight and Management Board, Acting Through its Special Claims Committee, and (II) Official Committee of Unsecured Creditors, Pursuant to Bankruptcy Code Section 502 and Bankruptcy Rule 3007, to Claims Filed or Asserted by Holders of Certain Commonwealth General Obligation Bonds (Dkt. No. 4784, filed January 14, 2019) (“GO Bond Claim Objection Procedures”). On January 14, 2019, the Oversight Board and the Committee filed an omnibus claim objection in the Commonwealth’s Title III case challenging claims arising from certain general obligation bonds issued by the Commonwealth in 2012 and 2014 totaling approximately $6 billion, none of which are held or insured by Ambac Assurance. The court subsequently ordered certain consolidated procedures permitting parties in interest an opportunity to participate in litigation of the objection. On April 11, 2019, Ambac Assurance filed a notice of participation in support of the objection, advancing the argument, among other things, that the PBA leases are true leases, but the associated debt nonetheless should be included in the Commonwealth’s debt ceiling calculation such that the 2012 and 2014 general obligation bond issuances are null and void and claims arising therefrom should be disallowed. On June 16, 2019, the Oversight Board announced that it had entered into a PSA with certain general obligation and PBA bondholders that includes a proposed resolution of claim objections to and issues surrounding both general obligation and PBA bonds, including a proposed settlement of this omnibus claim objection. On June 25, 2019, the Oversight Board moved to stay proceedings related to this omnibus claim objection while it pursues confirmation of the plan contemplated in the PSA. On July 24, 2019, the District Court referred this matter to mediation and ordered it stayed during the pendency of such mediation. On February 5, 2020, certain parties filed motions to dismiss the claim objection. On February 9, 2020, the Oversight Board executed the New PSA and announced that it intends to file, and seek to confirm, the Amended POA. Additional motions to dismiss were filed on February 19, 2020. The Mediation Team has recommended this matter be stayed while the Oversight Board attempts to confirm the Amended POA. The District Court has not yet ruled on this recommendation.

In re Financial Oversight and Management Board for Puerto Rico (United States District Court, District of Puerto Rico, No. 1:17-bk-03283), Ambac Assurance Corporation’s Motion to Strike Certain Provisions of the Plan Support Agreement By and Among the Financial Oversight and Management Board for Puerto Rico, Certain GO Holders, and Certain PBA Holders (Dkt. No. 8020, filed July 16, 2019) (“Ambac Assurance Motion to Strike PSA”). On June 16, 2019, the Oversight Board announced that it had entered into a PSA with certain general obligation and PBA bondholders that includes a proposed resolution of claim objections to and issues surrounding both general obligation and PBA bonds. On July 16, 2019, Ambac Assurance filed a motion to strike certain provisions of the PSA that it believes violate PROMESA, including the potential payment of a breakup fee to creditors who have supported the PSA. On July 24, 2019, the District Court referred this matter to mediation and ordered it

In re Financial Oversight and Management Board for Puerto Rico (United States District Court, District of Puerto Rico, No. 1:17-bk-03283), Ambac Assurance Corporation's Motion and Memorandum of Law in Support of Its Motion Concerning Application of the Automatic Stay to the Revenues Securing PRIFA Rum Tax Bonds (Dkt. No. 7176, filed May 30, 2019) (“PRIFA Stay Motion”). On May 30, 2019, Ambac Assurance filed a motion seeking an order that the automatic stay does not apply to certain lawsuits Ambac Assurance seeks to bring or to continue relating to bonds issued by PRIFA, or, in the alternative, for relief from the automatic stay to pursue such lawsuits or for adequate protection of Ambac Assurance's collateral. On July 24, 2019, the District Court referred this matter to mediation and ordered it stayed during the pendency of such mediation. Pursuant to an order of the District Court setting out an agreed schedule for litigation submitted by the Mediation Team, on January 16, 2020, Ambac Assurance, together with Assured Guaranty Corporation, Assured Guaranty Municipal Corporation, and Financial Guaranty Insurance Company filed a motion to amend the PRIFA Stay Motion in order to allow the PRIFA bond trustee to join the amended motion and to allow movants to address recent, controlling precedent from the First Circuit. The District Court granted the motion to amend on January 31, 2020, and Ambac Assurance filed the amended motion the same day. A preliminary hearing on the amended motion is scheduled for April 2, 2020.

In re Financial Oversight and Management Board for Puerto Rico (United States District Court, District of Puerto Rico, No. 1:17-bk-03283), Motion of Assured Guaranty Corp., Assured Municipal Corp., Ambac Assurance Corporation, National Public Finance Guarantee Corporation, and Financial Guaranty Insurance Company for Relief from the Automatic Stay, or, in the Alternative, Adequate Protection (Dkt. No. 10102, filed January 16, 2020) (“PRHTA Stay Motion”). Pursuant to an order of the District Court setting out an agreed schedule for litigation submitted by the Mediation Team, on January 16, 2020, Ambac Assurance, together with Assured Guaranty Corp., Assured Municipal Corp., National Public Finance Guarantee Corporation, and Financial Guaranty Insurance Company filed a motion seeking an order that the automatic stay does not apply to movants’ enforcement of the application of pledged revenues to the PRHTA bonds or the enforcement of movants’ liens on revenues pledged to such bonds, or, in the alternative, for adequate protection of movants’ interests in the revenues pledged to PRHTA bonds. A preliminary hearing on the motion is scheduled for April 2, 2020.

out an agreed schedule for litigation submitted by the Mediation Team, on January 16, 2020, Ambac Assurance, together with Financial Guaranty Insurance Company, Assured Guaranty Corp., Assured Municipal Corp., and the PRCCDA bond trustee, filed a motion seeking an order either (i) that the automatic stay does not apply to movants’ enforcement of their rights to revenues pledged to PRCCDA bonds by bringing an enforcement action against PRCCDA; or, in the alternative, (ii) lifting the automatic stay to enable movants to pursue an enforcement action against PRCCDA; or, in the further alternative, (iii) ordering adequate protection of movants’ interests in the PRCCDA pledged to PRCCDA bonds. A preliminary hearing on the motion is scheduled for April 2, 2020.

Ambac Assurance Corporation v. Merrill Lynch, Pierce, Fenner & Smith Incorporated, Goldman Sachs & Co. LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC, Morgan Stanley & Co. LLC, Samuel A. Ramirez & Co. Inc., Raymond James & Associates, Inc., and UBS Financial Services Inc. (Commonwealth of Puerto Rico, Court of First Instance, San Juan Superior Court, Case No. CV-000248923, filed February 19, 2020). On February 19, 2020, Ambac Assurance filed a complaint in the Commonwealth of Puerto Rico, Court of First Instance, San Juan Superior Court, against certain underwriters of Ambac-insured bonds issued by the Puerto Rico Infrastructure Financing Authority (“PRIFA”) and the Puerto Rico Convention Center District Authority (“PRCCDA”), with causes of action under the Puerto Rico civil law doctrines of actos proprios and Unilateral Declaration of Will. Ambac Assurance alleges defendants engaged in inequitable conduct in underwriting Ambac-insured bonds issued by PRIFA and PRCCDA, including failing to investigate and adequately disclose material information in the official statements for the bonds that defendants provided to Ambac Assurance regarding systemic deficiencies in the Commonwealth’s financial reporting. Ambac Assurance seeks damages in compensation for claims paid by Ambac Assurance on its financial guaranty insurance policies insuring such bonds, pre-judgment and post-judgment interest, and attorneys’ fees.

Ambac Assurance Corporation v. Autopistas Metropolitanas de Puerto Rico, LLC (United States District Court for the District of Puerto Rico) Case No. 3:20-cv-01094, filed February 19, 2020). On February 19, 2020, Ambac Assurance filed a complaint in the U.S. District Court for the District of Puerto Rico, against Autopistas Metropolitanas de Puerto Rico, LLC (“Metropistas”), which holds a concession from the Puerto Rico Highways and Transportation Authority (“PRHTA”) for two Puerto Rico highways, PR-5 and PR-22, in connection with a 10-year extension of the concession that was entered into in April 2016. The complaint includes claims for fraudulent conveyance and unjust enrichment, alleging that the consideration paid by Metropistas for the extension was less than reasonably equivalent value and most of the benefit of such payment was received by the Commonwealth instead of PRHTA. Ambac Assurance also seeks a declaratory judgment that it has a valid and continuing lien on certain toll revenues that are being collected by Metropistas.

(“CFPB”) filed a complaint against fifteen National Collegiate Student Loan Trusts, regarding alleged improprieties and deficiencies in servicing practices. Simultaneous with the filing of its complaint, CFPB also filed a motion for entry of a proposed consent judgment that would grant monetary damages and injunctive relief against the Trusts. Ambac Assurance guaranteed certain securities issued by three of the Trusts and indirectly insures six other Trusts. Ambac Assurance filed a motion to intervene in the action on September 20, 2017. On September 20, 2018, the case was reassigned to a new judge, who invited additional letter submissions from the parties. Ambac Assurance submitted a letter on September 28, 2018, reiterating its request to intervene in the action. The CFPB also submitted a letter, which asserted that the court can resolve the outstanding intervention motions on the papers. In additional submissions, the CFPB and a firm purporting to represent the Defendant Trusts argued that the court should resolve a dispute relating to the payment of counsel fees out of Trust assets, so that the Trusts can secure representation for the case. On October 19, 2018, the court granted Ambac’s motion to intervene. On November 29, 2018, following submissions from the parties regarding the CFPB’s motion for entry of the proposed consent judgment and regarding discovery necessary to respond to the motion, the court set a bifurcated discovery and briefing schedule. Discovery is now complete as to certain threshold issues and will be followed by briefing on the CFPB’s motion to approve the consent judgment.

Nat’l Collegiate Master Student Loan Trust v. Pa. Higher Education Assistance Agency (PHEAA) (Delaware Court of Chancery, C.A. No. 12111-VCS, filed March 21, 2016). Plaintiffs purporting to act on behalf of fifteen National Collegiate Student Loan Trusts filed a lawsuit against PHEAA, a servicer of loans in the Trusts, alleging improprieties and deficiencies in servicing practices and seeking an order compelling PHEAA to submit to an emergency audit. PHEAA submitted papers contesting the validity of certain transfers to Plaintiffs of beneficial ownership interests in the Trusts. In addition, the Owner Trustee of the Trusts, Wilmington Trust Company, WTC, citing irreconcilable differences with Plaintiffs, has resigned from its role as Owner Trustee and moved for appointment of a successor Owner Trustee. On October 9, 2017, the court directed the parties to meet and confer to develop a process for selecting an interim Owner Trustee. Ambac Assurance guaranteed certain securities issued by three of the Trusts and indirectly insures certain securities in six other Trusts. Ambac Assurance filed a motion to intervene in the action on October 23, 2017, for the limited purpose of being heard regarding the appointment of a successor Owner Trustee and regarding WTC’s contractual commitment and obligation to remain in that role until such appointment is made. On October 30, 2017, the court denied without prejudice a stipulation filed by Plaintiffs and WTC purporting to address the Owner Trustee issue, and instructed that all interested parties be given notice and an opportunity to participate in discussions to formulate a process for selecting a successor Owner Trustee. On November 7, 2017, the court ruled in Plaintiffs’ favor and confirmed the validity of the ownership transfers that PHEAA had disputed. On January 12, 2018, Plaintiffs filed a motion for injunctive or declaratory relief requiring WTC, as Owner Trustee, and GSS Data Services, Inc., as Administrator, to resume processing for payment bills submitted by lawyers purporting to act on the Trusts’ behalf. At a hearing

On June 15, 2018, the Owner Trustee filed a stipulation and proposed order addressing the selection of a Successor Owner Trustee. Among other provisions, the stipulation calls for the appointment of a Special Master to adjudicate disputes regarding Owner Instructions, and raises the annual expense caps that apply to the Owner Trustee and Indenture Trustee. On November 14, 2018, the court issued an order appointing Hon. Joseph J. Farnan, Jr. as Special Master and granting him authority to resolve non-dispositive disputes among the parties, including disputes concerning instructions to the Owner Trustee. The order appointing the Special Master also raises the annual expense caps that apply to the Owner Trustee and Indenture Trustee. On June 21, 2019, the Special Master denied an application by certain residual equity interest holders in the Trusts, which sought to compel the Owner Trustee to appoint certain counsel for the Trusts in CFPB v. Nat’l Collegiate Master Student Loan Trust (United States District Court, District of Delaware, Case No. 1:17-cv-01323, filed September 18, 2017). On October 11, 2019, Vice Chancellor Slights issued a decision affirming the Special Master’s ruling. On January 21, 2020, Vice Chancellor Slights entered an order consolidating the action with later-filed litigation pending in Delaware Chancery Court relating to the Trusts, including a declaratory judgment action in which Ambac Assurance was named as a defendant, NC Residuals Owners Trust, et al. v. Wilmington Trust Co., et al. (Del. Ct. Ch., C.A. No. 2019-0880, filed Nov. 1, 2019).

In August and October 2018, Defendants filed pre-trial motions seeking to (1) strike Ambac Assurance’s jury demand for its fraudulent-inducement claim; (2) strike Ambac Assurance’s jury demand for its successor-liability claim; (3) sever the trials for Ambac Assurance’s primary- and successor-liability claims; (4) limit the loans for which Ambac Assurance may seek to recover damages; (5) preclude Ambac Assurance from using sampling to prove liability or damages for breach of contract; and (6) dismiss Ambac Assurance’s fraudulent-inducement claim as duplicative of its contract claim. On December 30, 2018, the court denied all six of these pre-trial motions in their entirety and Defendants appealed. On September 17, 2019, the First Department issued a decision on Defendants’ appeals, affirming the trial court’s denials of Countrywide's motions: (1) to strike Ambac Assurance’s jury demand for its fraudulent-inducement claim; (2) to limit the loans for which Ambac Assurance may seek to recover damages; (3) to preclude Ambac Assurance from using sampling to prove liability or damages for breach of contract; and (4) to dismiss Ambac Assurance’s fraudulent-inducement claim as duplicative of its contract claim, but subject to a potential motion by Countrywide to renew. The First Department modified the trial court’s ruling in the following respects: (1) granting Bank of America’s motion to strike Ambac

Assurance’s jury demand for its successor-liability claim; and (2) granting Defendants’ motion to sever the trials for Ambac Assurance’s primary- and successor-liability claims. On October 17, 2019, Countrywide filed a motion before the First Department for leave to appeal certain issues to the New York Court of Appeals and for reargument or leave to appeal certain other issues, which Ambac Assurance opposed. On January 16, 2020, the First Department recalled and vacated its September 17, 2019 decision and order and substituted a new decision and order with the same rulings on all motions subject to appeal, but also expressly affirming the trial court’s ruling denying Countrywide’s motion to strike Ambac Assurance’s jury demand and removing language from the decision concerning Countrywide’s liability for loans that it knew or should have known were in breach. On the same date, the First Department denied Countrywide’s motion seeking leave to appeal, without prejudice to seeking such leave from the reissued decision and order. On January 30, 2020, Countrywide filed a new motion for leave to appeal the First Department’s denial of its motions (1) to limit the loans for which Ambac Assurance may seek to recover damages; (2) to preclude Ambac Assurance from using sampling to prove liability or damages for breach of contract; (3) to dismiss Ambac Assurance’s fraudulent-inducement claim as duplicative of its contract claim; and (4) to strike Ambac Assurance’s jury demand for its fraudulent-inducement claim. On February 7, 2020, Ambac Assurance filed its opposition to Countrywide’s renewed motion for leave to appeal.

(“Harborview 2005-10”), a residential mortgage-backed securitization for which Ambac Assurance issued an insurance policy. On March 6, 2017, U.S. Bank filed a petition commencing the Minnesota Action, a trust instruction proceeding in Minnesota state court concerning the proposed settlement, and on June 12, 2017, U.S. Bank filed an amended petition. Ambac Assurance filed a motion to dismiss the Minnesota Action. On November 13, 2017, the court denied Ambac Assurance’s motion to dismiss the Minnesota Action. On February 7, 2018, Ambac Assurance appealed this decision, and on September 4, 2018, the Minnesota Court of Appeals affirmed the lower court's decision. On September 17, 2018, Ambac Assurance filed a petition for review with the Minnesota Supreme Court, which was denied on November 13, 2018. On February 11, 2019, Ambac Assurance filed a petition for certiorari with the United States Supreme Court. On October 4, 2019, the Supreme Court denied Ambac Assurance’s petition for certiorari. On September 6, 2018, the court granted U.S. Bank's motion for leave to file a Second Amended Petition seeking approval of its acceptance of a proposed settlement to settle the separate litigation being prosecuted by U.S. Bank, as Trustee. On September 6, 2018, U.S. Bank filed its Second Amended Petition, and Ambac Assurance and certain other certificateholders objected to, or otherwise responded to, the petition. Discovery in the Minnesota Action is ongoing, and on October 9, 2019, the court set April 27, 2020 as the date for the start of the trial. On June 8, 2018, Ambac Assurance filed the SDNY Action asserting claims arising out of U.S. Bank’s acceptance of the proposed settlement and treatment of trust recoveries. Ambac Assurance asserts claims for declaratory judgment, breach of contract, and breach of fiduciary duty. On November 20, 2018, U.S. Bank filed a motion to dismiss the complaint, which Ambac Assurance opposed. On July 16, 2019, the court in the SDNY Action granted in part and denied in part U.S. Bank's motion to dismiss Ambac Assurance's claims. The court dismissed Ambac Assurance's breach-of-contract and breach-of-fiduciary-duty claims based on U.S. Bank's acceptance of the settlement; and dismissed Ambac Assurance's declaratory judgment claims regarding the occurrence of an Event of Default and U.S. Bank's future distribution of trust recoveries through the waterfall. The court denied the motion to dismiss Ambac Assurance's breach-of-contract claims based on U.S. Bank's past distribution of trust recoveries through the waterfall. On January 17, 2020, U.S. Bank moved for summary judgment regarding the remaining claim relating to distributions. On February 7, 2020, Ambac Assurance cross-moved for summary judgment.

breach of fiduciary duty, declaratory judgment, and violation of the Streit Act in connection with defendant’s failure to enforce rights and remedies and defendant’s treatment of trust recoveries, as trustee of five residential mortgage-backed securitizations for which Ambac Assurance issued insurance policies. On September 15, 2017, U.S. Bank filed a motion to dismiss. On June 29, 2018, the court granted in part and denied in part U.S. Bank’s motion to dismiss. The court dismissed the breach-of-fiduciary duty claim in part as duplicative of the breach-of-contract claim; dismissed the breach-of-contract claim as untimely only to the extent that it was premised on U.S. Bank's obligation to certify that mortgage documents were properly delivered to the Trusts; dismissed the Streit Act claims; and otherwise denied the motion to dismiss. Discovery is ongoing.