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): July 9, 2021 (July 2, 2021)

Oaktree Specialty Lending Corporation

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (213) 830-6300

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:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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.  ☐

Item 1.01 Entry into a Material Definitive Agreement.

On July 2, 2021, Oaktree Specialty Lending Corporation (the “Company”) entered into an amendment (the “Amendment”) to the amended and restated loan and security agreement by and among the Company, as collateral manager, OCSL Senior Funding II LLC (formerly OCSI Senior Funding II LLC), as borrower, and Citibank, N.A., as administrative agent and sole lender. Among other things, the Amendment: (1) reduced the size of the facility from $180 million to $150 million, (2) extended the reinvestment period to July 18, 2023, (3) extended the maturity date to July 18, 2024, (4) modified the interest rate on outstanding borrowings to London Interbank Offered Rate (“LIBOR”) plus between 1.25% and 2.20% per annum on broadly syndicated loans subject to the observable market depth and pricing and LIBOR plus 2.25% per annum on all other eligible loans during the reinvestment period and (5) added provisions relating to the transition from LIBOR to the Secured Overnight Financing Rate.

The description above is only a summary of the material provisions of the Amendment is qualified in its entirety by reference to copy of the Amendment, which is filed as Exhibit 10.1 to this Current Report on Form 8-K and incorporated by reference herein.

Item 9.01. Financial Statements and Exhibits.

SIGNATURE

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