ESGR 10-Q Quarter ended March 31, 2014

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

For the Quarterly Period Ended March 31, 2014

OR

For the Transition Period From              to

001-33289

Commission File Number

ENSTAR GROUP LIMITED

(Exact name of registrant as specified in its charter)

P.O. Box HM 2267

Windsor Place, 3rd Floor

22 Queen Street

Hamilton HM JX

Bermuda

(Address of principal executive office, including zip code)

(441) 292-3645

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes þ No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes þ No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes ¨ No þ

As of May 6, 2014, the registrant had outstanding 15,802,243 voting ordinary shares and 2,725,637 non-voting convertible ordinary shares, each par value $1.00 per share.

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ENSTAR GROUP LIMITED

As of March 31, 2014 and December 31, 2013

See accompanying notes to the unaudited condensed consolidated financial statements

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ENSTAR GROUP LIMITED

For the Three Month Periods Ended March 31, 2014 and 2013

See accompanying notes to the unaudited condensed consolidated financial statements

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ENSTAR GROUP LIMITED

For the Three Month Periods Ended March 31, 2014 and 2013

See accompanying notes to the unaudited condensed consolidated financial statements

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ENSTAR GROUP LIMITED

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

For the Three Month Periods Ended March 31, 2014 and 2013

See accompanying notes to the unaudited condensed consolidated financial statements

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ENSTAR GROUP LIMITED

For the Three Month Periods Ended March 31, 2014 and 2013

See accompanying notes to the unaudited condensed consolidated financial statements

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ENSTAR GROUP LIMITED

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

March 31, 2014 and December 31, 2013

(Tabular information expressed in thousands of U.S. dollars except share and per share data)

(unaudited)

1. SIGNIFICANT ACCOUNTING POLICIES

Basis of Preparation and Consolidation

The Company’s condensed consolidated financial statements have not been audited. These statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, these financial statements reflect all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the Company’s financial position and results of operations as at the end of and for the periods presented. Results of operations for subsidiaries acquired are included from the dates of their acquisition by the Company. The results of operations for any interim period are not necessarily indicative of the results for a full year. Inter-company accounts and transactions have been eliminated. In these notes, the terms “we,” “us,” “our,” or “the Company” refer to Enstar Group Limited and its direct and indirect subsidiaries.

The preparation of these unaudited condensed consolidated financial statements requires management to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. While management believes that the amounts included in the unaudited condensed consolidated financial statements reflect its best estimates and assumptions, actual results could differ from those estimates. The Company’s principal estimates include, but are not limited to:

The following information should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2013. Certain reclassifications have been made to the prior period reported amounts of net premiums earned – life and annuities, net increase in ultimate losses and loss adjustment expense liabilities, acquisition costs and life and annuity policy benefits to conform to the current period presentation. All of these reclassifications are associated with Laguna Life Limited (“Laguna”), which now forms part of the Company’s life and annuities segment that was established following the acquisition of the Pavonia companies. These reclassifications had no impact on net earnings previously reported.

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ENSTAR GROUP LIMITED

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

1. SIGNIFICANT ACCOUNTING POLICIES—(Continued)

New Accounting Standards Adopted in 2014

ASU 2013-11 Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists

In July 2013, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (“ASU 2013-11”). The objective of ASU 2013-11 is to improve the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. ASU 2013-11 seeks to reduce the diversity in practice by providing guidance on the presentation of unrecognized tax benefits to better reflect the manner in which an entity would settle at the reporting date any additional income taxes that would result from the disallowance of a tax position when net operating loss carryforwards, similar tax losses, or tax credit carryforwards exist. ASU 2013-11 is effective for annual and interim reporting periods beginning after December 15, 2013, with both early adoption and retrospective application permitted. The adoption of the guidance did not have a material impact on the Company’s consolidated statements of operations and financial position.

2. ACQUISITIONS

Torus Insurance Holdings Limited

On April 1, 2014, Kenmare Holdings Ltd. (“Kenmare”), a wholly-owned subsidiary of the Company, together with Trident V, L.P., Trident V Parallel Fund, L.P. and Trident V Professionals Fund, L.P., which are managed by Stone Point Capital LLC (collectively, “Trident”), completed the previously announced acquisition of Torus Insurance Holdings Limited (“Torus”). Torus is an A- rated global specialty insurer with six wholly-owned insurance vehicles, including Lloyd’s Syndicate 1301. At closing, Torus became directly owned by Bayshore Holdings Ltd. (“Bayshore”), which was 60% owned by Kenmare and 40% owned by Trident.

The purchase price for Torus was established in the amended and restated amalgamation agreement as $646.0 million, to be paid partly in cash and partly in the Company’s stock. The number of Company shares to be issued was fixed at the signing of the amalgamation agreement on July 8, 2013 and was determined by reference to an agreed-upon value per share of $132.448, which was the average closing price of the Company’s voting ordinary shares, par value $1.00 per share (the “Voting Ordinary Shares”), over the 20 trading days prior to such signing date. On the day before closing of the amalgamation, the Voting Ordinary Shares had a closing price of $136.31 per share. At closing, the Company contributed cash of $41.6 million towards the purchase price and $3.6 million towards related transaction expenses, as well as 1,898,326 Voting Ordinary Shares and 714,015 shares of Series B Convertible Participating Non-Voting Perpetual Preferred Stock of the Company (the “Non-Voting Preferred Shares”). Based on a price of $136.31 per share, the Company’s contribution of cash and shares to the purchase price totaled $397.7 million in the aggregate. Trident contributed cash of $258.4 million towards the purchase price and $2.4 million towards related transaction expenses. FR XI Offshore AIV, L.P., First Reserve Fund XII, L.P., FR XII A Parallel Vehicle L.P. and FR Torus Co-Investment, L.P. (collectively, “First Reserve”) received 1,501,211 Voting Ordinary Shares, 714,015 Non-Voting Preferred Shares and cash consideration in the transaction. Corsair Specialty Investors, L.P. (“Corsair”) received 397,115 Voting Ordinary Shares and cash consideration in the transaction.

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ENSTAR GROUP LIMITED

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

2. ACQUISITIONS—(Continued)

The remaining Torus shareholders received all cash. As a result of the amalgamation, First Reserve now owns approximately 9.5% and 11.5%, respectively, of the Company’s Voting Ordinary Shares and outstanding share capital.

Upon the closing of the Torus acquisition, Bayshore, Kenmare and Trident entered into a Shareholders’ Agreement (the “Bayshore Shareholders’ Agreement”), which was subsequently amended, as described in “Dowling Co-investments in Bayshore and Northshore” below.

Changes in Ownership Interests relating to Holding Companies for our Active Underwriting Businesses

Atrium Employee Equity Awards

On April 17, 2014, Northshore Holdings Ltd. (“Northshore”), the parent company of Atrium Underwriting Group Limited (“Atrium”) and Arden Reinsurance Company Ltd. (“Arden”), implemented long-term incentive plans that awarded time-based restricted shares of Northshore to certain Atrium employees. These equity awards will have the effect of modestly reducing Kenmare’s 60% equity interest in Northshore (as well as Trident’s 40% equity interest) over the course of the vesting periods as Atrium employees acquire shares. Shares generally vest over two to three years, and certain awards begin vesting in 2014. On a fully diluted basis, and assuming full vesting of all of these equity awards, the impact of the share awards are that Kenmare, Trident and certain Atrium employees own 57.1%, 38.1%, and 4.8% of Northshore, respectively.

Dowling Co-investments in Bayshore and Northshore

On May 8, 2014, Dowling Capital Partners I, L.P. (“Dowling”) purchased common shares of both Bayshore and Northshore from Kenmare and Trident (on a pro rata basis in accordance with their respective interests) for an aggregate amount of $15.4 million.

Prior to the sale of shares to Dowling, Kenmare and Trident owned 60% and 40% of Bayshore, respectively, and 57.7% and 38.1% of Northshore on a fully diluted basis, respectively (assuming full vesting of Atrium employees’ restricted shares totaling 4.8%). Following the sale of Bayshore shares to Dowling, Kenmare, Trident and Dowling own 59%, 39.3% and 1.7% of Bayshore, respectively. Following the sale of Northshore shares to Dowling, Kenmare, Trident, certain Atrium employees and Dowling own 56.1%, 37.4%, 4.8% and 1.7% of Northshore, respectively, on a fully diluted basis.

In connection with the sale of Bayshore shares, the Bayshore Shareholders’ Agreement was amended and restated. The Amended and Restated Bayshore Shareholders’ Agreement, among other things, provides that Kenmare has the right to appoint three members to the Bayshore board of directors and Trident has the right to appoint two members. The Amended and Restated Bayshore Shareholders’ Agreement includes a five-year period (the “Restricted Period”) during which no shareholder can transfer its ownership interest in Bayshore to a third party unless approved by a super-majority of the shareholders. Following the Restricted Period: (i) each shareholder must offer Kenmare and Trident the right to buy its shares before the shares are offered to a third party; (ii) Kenmare can require each other shareholder to participate in a sale of Bayshore to a third party as long as Kenmare owns 55% of the aggregate number of outstanding shares of Bayshore held by Kenmare and Trident; (iii) each shareholder has the right to be included on a pro rata basis in any sales made by another shareholder; and (iv) each of Kenmare, Trident and Dowling has the right to buy its pro rata share of any new securities issued by Bayshore.

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ENSTAR GROUP LIMITED

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

2. ACQUISITIONS—(Continued)

The Amended and Restated Bayshore Shareholders’ Agreement also provides that during the 90-day period following the fifth anniversary of the Torus closing, and at any time following the seventh anniversary of such closing, Kenmare would have the right to purchase the Bayshore shares owned by all other shareholders of Bayshore at their then fair market value, which would be payable in cash. Following the seventh anniversary of the Torus closing, Trident would have the right to require Kenmare to purchase all of Trident’s shares in Bayshore for their then current fair market value and Dowling would have the right to participate in such transaction by requiring Kenmare to purchase all of its shares in Bayshore on the same terms. Kenmare would have the option to pay for such shares either in cash or by delivering the Company’s Voting Ordinary Shares.

In connection with the sale of Northshore shares, the Northshore Shareholders’ Agreement was amended and restated. The Amended and Restated Northshore Shareholders’ Agreement provides for substantially the same rights and obligations as the Amended and Restated Bayshore Shareholders’ Agreement, except that the fifth and seventh anniversaries refer to the Arden closing.

3. SIGNIFICANT NEW BUSINESS

2014

Reciprocal of America

On July 6, 2012, our wholly-owned subsidiary, Providence Washington Insurance Company, entered into a definitive loss portfolio transfer reinsurance agreement with Reciprocal of America (in Receivership) and its Deputy Receiver relating to a portfolio of workers’ compensation business. The estimated total liabilities to be assumed are approximately $169.0 million, with an equivalent amount of assets to be received as consideration. Completion of the transaction is conditioned upon, among other things, regulatory approvals and satisfaction of customary closing conditions. The transaction is expected to close in the second quarter of 2014.

Shelbourne RITC Transactions

Effective January 1, 2014, Lloyd’s Syndicate 2008 (“S2008”), which is managed by the Company’s wholly-owned subsidiary and Lloyd’s managing agent, Shelbourne Syndicate Services Limited, entered into a reinsurance to close contract of the 2011 and prior underwriting years of account of another Lloyd’s syndicate, under which S2008 assumed total net insurance reserves of approximately £17.0 million (approximately $28.1 million) for cash consideration of an equal amount.

Effective December 31, 2012, S2008 entered into a 100% quota share reinsurance agreement with another Lloyd’s syndicate in respect of its 2009 and prior years of account (the “2009 Liabilities”), under which S2008 assumed total gross insurance reserves of approximately £193.0 million (approximately $313.3 million) for consideration of an equal amount. Effective January 1, 2014, the 2012 Lloyd’s underwriting year of account of S2008 entered into a partial RITC transaction with respect to the 2009 liabilities.

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ENSTAR GROUP LIMITED

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

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4. INVESTMENTS

Trading

The estimated fair values of the Company’s investments in fixed maturity investments, short-term investments and equities classified as trading securities were as follows:

Included within residential and commercial mortgage-backed securities as at March 31, 2014 were securities issued by U.S. governmental agencies with a fair value of $188.3 million (as at December 31, 2013: $177.9 million).

The following tables set forth certain information regarding the credit ratings (provided by major rating agencies) of the Company’s fixed maturity and short-term investments classified as trading:

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ENSTAR GROUP LIMITED

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

4. INVESTMENTS—(Continued)

Held-to-maturity

The Company holds a portfolio of held-to-maturity securities to support the Pavonia annuity business. The amortized cost and estimated fair values of the Company’s fixed maturity securities classified as held-to-maturity were as follows:

As at March 31, 2014 and December 31, 2013, none of these securities were considered to be other than temporarily impaired.

The contractual maturities of the Company’s fixed maturity securities classified as held-to-maturity are shown below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

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ENSTAR GROUP LIMITED

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

4. INVESTMENTS—(Continued)

The following tables set forth certain information regarding the credit ratings (provided by major rating agencies) of the Company’s fixed maturity investments classified as held-to-maturity:

Available-for-sale

The amortized cost and estimated fair values of the Company’s fixed maturity and short-term investments classified as available-for-sale were as follows:

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ENSTAR GROUP LIMITED

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

4. INVESTMENTS—(Continued)

Included within residential mortgage-backed securities as at March 31, 2014 were securities issued by U.S. governmental agencies with a fair value of $1.1 million (as at December 31, 2013: $12.5 million).

The following tables summarize the Company’s fixed maturity and short-term investments classified as available-for-sale in an unrealized loss position as well as the aggregate fair value and gross unrealized loss by length of time the securities have continuously been in an unrealized loss position:

As at March 31, 2014 and December 31, 2013, the number of securities classified as available-for-sale in an unrealized loss position was 97 and 135, respectively, with a fair value of $89.5 million and $121.8 million, respectively. Of these securities, the number of securities that had been in an unrealized loss position for twelve months or longer was nil. As of March 31, 2014, none of these securities were considered to be other than temporarily impaired.

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ENSTAR GROUP LIMITED

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

4. INVESTMENTS—(Continued)

The contractual maturities of the Company’s fixed maturity and short-term investments classified as available-for-sale are shown below. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

The following tables set forth certain information regarding the credit ratings (provided by major rating agencies) of the Company’s fixed maturity and short-term investments classified as available-for-sale:

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ENSTAR GROUP LIMITED

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

4. INVESTMENTS—(Continued)

Other-Than-Temporary Impairment Process

The Company assesses whether declines in the fair value of its fixed maturity investments classified as available-for-sale and held-to-maturity represent impairment losses that are other-than-temporary and whether a credit loss exists in accordance with its accounting policies. In assessing whether it is more likely than not that the Company will be required to sell a fixed maturity investment before its anticipated recovery, the Company considers various factors including its future cash flow requirements, legal and regulatory requirements, the level of its cash, cash equivalents, short-term investments and fixed maturity investments available-for-sale in an unrealized gain position, and other relevant factors. For the three months ended March 31, 2014, the Company did not recognize any other-than-temporary impairment losses due to required sales. The Company determined that, as at March 31, 2014, no credit losses existed.

Other Investments

The estimated fair values of the Company’s other investments were as follows:

Private equity funds

This class comprises several private equity funds that invest primarily in the financial services industry. All of the Company’s investments in private equity funds are subject to restrictions on redemptions and sales that are determined by the governing documents and limit the Company’s ability to liquidate those investments. These restrictions have been in place since the dates the initial investments were made by the Company.

As of March 31, 2014 and December 31, 2013, the Company had $191.5 million and $161.2 million, respectively, of other investments recorded in private equity funds, which represented 2.8% and 2.5% of total investments, cash and cash equivalents and restricted cash and cash equivalents at March 31, 2014 and December 31, 2013, respectively. Due to a lag in the valuations reported by the managers, the Company records changes in the investment value with up to a three-month lag. Management regularly reviews and discusses fund performance with their fund managers to corroborate the reasonableness of the reported net asset values and to assess whether any events have occurred within the lag period that would affect the valuation of the investments.

Fixed income funds

This class comprises a number of positions in diversified fixed income funds that are managed by third party managers. Underlying investments vary from high grade corporate bonds to non-investment

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ENSTAR GROUP LIMITED

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

4. INVESTMENTS—(Continued)

grade senior secured loans and bonds, but are generally invested in liquid fixed income markets. These funds have regularly published prices. The funds have liquidity terms that vary from daily to monthly.

Fixed income hedge funds

This class comprises hedge funds that invest in a diversified portfolio of debt securities. The hedge funds have imposed lock-up periods of three years from the time of the Company’s initial investment. Once eligible, redemptions will be permitted quarterly with 90 days’ notice. Some of the funds were eligible for redemption in March 2014.

Equity funds

This class comprises equity funds that invest in a diversified portfolio of international publicly-traded equity securities.

Real estate debt fund

This class comprises a real estate debt fund that invests primarily in U.S. commercial real estate loans and securities. A redemption request for this fund can be made 10 days after the date of any monthly valuation; the fund states that it will make commercially reasonable efforts to redeem the investment within the next monthly period.

Other