UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):

August 6, 2018 (August 2, 2018)

Solar Capital Ltd.

(Exact name of registrant as specified in its charter)

(212) 993-1670

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

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

Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

On March 23, 2018, the Consolidated Appropriations Act of 2018, which includes the Small Business Credit Availability Act (the “Act”), was signed into law. The Act amends the Investment Company Act of 1940, as amended (the “1940 Act”) to permit a business development company (a “BDC”) to reduce the required minimum asset coverage ratio applicable to it from 200% to 150%, subject to certain requirements described therein.

On August 2, 2018, the board of directors (the “Board”) of Solar Capital Ltd. (the “Company”), including a “required majority” (as such term is defined in Section 57(o) of the 1940 Act) of the Board, approved the application of the modified asset coverage requirements set forth in Section 61(a)(2) of the 1940 Act, as amended by the Act. As a result, the Company’s asset coverage requirements for senior securities will automatically be changed from 200% to 150%, effective August 2, 2019.

On the same day, the Board recommended the submission of a proposal for stockholders (the Proposal”) to approve the application of the 150% minimum asset coverage ratio to the Company at the Company’s 2018 Annual Meeting of Stockholders (the “Meeting”). If the stockholder proposal is approved by the required votes of the Company’s stockholders at the Meeting, the Company would become subject to the 150% minimum asset coverage ratio the day after such stockholder approval instead of August 2, 2019.

On August 6, 2018, the Company issued a press release regarding the foregoing. The press release, which is incorporated herein by reference, is included as Exhibit 99.1 and may be deemed soliciting material pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended.

In connection with the Meeting, the Company plans to file with the SEC and mail to its shareholders a proxy statement on Schedule 14A (the “Proxy Statement”). The Proxy Statement will contain important information about the Proposal and related matters. Investors and security holders are urged to read the Proxy Statement, as well as any amendments and supplements thereto, carefully and in its entirety when it becomes available because it will contain important information about the Proposal and related matters. Investors and security holders will be able to obtain the Proxy Statement and other documents filed with the SEC by the Company, free of charge, from the SEC’s website at www.sec.gov and from the Company’s website at www.solarcapltd.com. The Company and its directors and executive officers may be deemed to be participants in the solicitation of proxies from the shareholders of the Company’s common stock with respect to the Proposal. Information regarding ownership of the Company’s common stock by the Company’s directors and executive officers will be available in the Proxy Statement.

(d) Exhibits.

SIGNATURES

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

Date: August 6, 2018

Exhibit 99.1

Solar Capital’s Board Approves Reduced Asset Coverage Requirement; Provides Flexibility to Expand Specialty Finance Platform; Lowers Base Management Fee over 1.0x Debt-to-Equity

NEW YORK — August 6, 2018 — Solar Capital Ltd. (NASDAQ: SLRC) (the “Company” or “Solar Capital”), an externally managed business development company (“BDC”), today announced that effective August 2, 2018, its Board of Directors (the “Board”), including all Independent Directors, and based on the recommendation of its investment advisor, Solar Capital Partners (“SCP”), approved the reduction in the asset coverage requirement under of the Investment Company Act of 1940 as allowed under the Small Business Credit Availability Act (“SBCAA”). As a result, effective August 2, 2019, the Company’s asset coverage requirements will be reduced from 200% to 150%. The Company will target a range of 0.90x to 1.25x debt-to-equity, operating at a substantial cushion to the regulatory limit.

In order to potentially accelerate the adoption, the Board authorized the submission of a proposal for voting shareholders to approve the application of the modified asset coverage requirements set forth in revised Section 61(a)(2) of the Investment Company Act of 1940, as modified by the SBCAA. If the Company’s voting shareholders approve the proposal by the required majority of votes at its 2018 Annual Meeting of Shareholders, the 150% asset coverage ratio will become effective on the day after such approval.

Solar Capital’s Board approved the reduction of the asset coverage requirement following the Company’s analysis of how the increased leverage flexibility could affect the Company’s strategic priorities and positive long-term value creation for shareholders, as well as an assessment of the associated risks and how they can be managed or mitigated. Importantly, the Board also approved an amendment to the Investment Advisory Agreement reducing the Investment Advisor’s annual base management fee to 1.00% on assets financed using leverage over 1.0x debt-to-equity.

“The asset coverage modification will not result in changes to our investment strategy and enhances the Company’s ability to expand its specialty finance platform,” said Michael Gross, Chairman and CEO. “Together with the management fee reduction, the Company has the potential to generate increased returns for shareholders. Notably, the Company already has sufficient capital to operate within the new target debt-to-equity range without having to raise additional debt or equity.”

“We have positioned Solar Capital as a diversified niche specialty finance company. The reduced asset coverage provides us flexibility to grow our senior secured first lien cash flow lending business and

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expand our commercial finance platform. Collapsing the Senior Secured Unitranche Loan Programs (“SSLP” and “SSLP II”) on balance sheet will increase transparency and simplicity and create investment capacity for non-qualifying assets to expand our specialty finance verticals,” said Bruce Spohler, Chief Operating Officer. “In summary, the asset coverage modification enables us to do more of what we’ve been doing: investing in first lien senior secured cash flow and asset-based loans.”

About Solar Capital Ltd.

Solar Capital Ltd. is a closed-end investment company that has elected to be treated as a business development company under the Investment Company Act of 1940. A specialty finance company with expertise in several niche markets, the Company primarily invests directly and indirectly in leveraged, U.S. middle market companies in the form of cash flow senior secured loans including first lien and second lien debt instruments and asset-based loans including senior secured loans collateralized on a first lien basis primarily by current assets.

Forward-Looking Statements

Statements included herein may constitute “forward-looking statements,” which relate to future events or our future performance or financial condition. These statements are not guarantees of future performance, conditions or results and involve a number of risks and uncertainties. Actual results may differ materially from those in the forward-looking statements as a result of a number of factors, including those described from time to time in our filings with The Securities and Exchange Commission. Solar Capital Ltd. undertakes no duty to update any forward-looking statements made herein, unless required to do so by applicable law.

Contact

Solar Capital Ltd.

Investor Relations

(646) 308-8770

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