Oaktree Specialty Lending names Brett McKeone COO Dec 31, 2025

Oaktree Specialty Lending Corporation appointed Brett McKeone as Chief Operating Officer, effective December 31, 2025.

Rhea-AI Filing Summary

Oaktree Specialty Lending Corporation appointed Brett McKeone as Chief Operating Officer, effective December 31, 2025. McKeone, 48, is a managing director within Oaktree’s Global Private Debt strategy and has been with Oaktree since 2007. His prior experience includes roles at Deloitte Consulting’s Strategy and Operations practice and Exxon Mobil. He holds M.S. and B.S. degrees in mechanical engineering from MIT, an M.B.A. from UCLA Anderson, and is a CFA charterholder. The company states he has no family relationships with current directors or executive officers and no transactions requiring disclosure under Item 404(a).

Insights

Corporate governance analyst

Routine executive appointment; limited direct financial impact.

Oaktree Specialty Lending named Brett McKeone COO effective December 31, 2025. The disclosure highlights his internal tenure within Oaktree’s Global Private Debt strategy and a conventional background in consulting and industry roles.

The filing notes no family relationships and no Item 404(a) related‑party transactions, indicating standard governance hygiene. This is an organizational update without quantified operating or financial changes attached in the excerpt.

Subsequent filings may provide performance context for the COO role’s responsibilities, but the immediate effect is administrative and not tied to explicit financial targets in this disclosure.

8-K Event Classification

2 items: 5.02, 9.01

2 items

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, or exhibit attachments filed with this report.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did OCSL (NASDAQ: OCSL) announce in this filing?

The company appointed Brett McKeone as Chief Operating Officer, effective December 31, 2025.

When does Brett McKeone become COO of OCSL?

His appointment is effective on December 31, 2025.

What is Brett McKeone’s background before becoming OCSL’s COO?

He is a managing director in Oaktree’s Global Private Debt strategy, previously worked at Deloitte Consulting and Exxon Mobil, and is a CFA charterholder.

What are Brett McKeone’s academic credentials?

He holds M.S. and B.S. degrees in mechanical engineering from MIT and an M.B.A. from UCLA Anderson.

Are there any related-party transactions disclosed for the new COO?

The company states there are no transactions or proposed transactions in which he has a material interest subject to Item 404(a).

Does Brett McKeone have any family relationships with OCSL leadership?

No. The filing states he has no family relationships with current directors or executive officers.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 11/14/2025 - 04:05 PM Learn about SEC filing dates

Oaktree Specialty Lending Corp false 0001414932 0001414932 2025-11-10 2025-11-10

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): November 14, 2025 (November 10, 2025)

Oaktree Specialty Lending Corporation

(Exact name of registrant as specified in its charter)

Delaware		814-00755		26-1219283
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

333 South Grand Avenue, 28th Floor Los Angeles, CA		90071
(Address of principal executive offices)		(Zip Code)

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:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common stock, par value $0.01 per share		OCSL		The Nasdaq Stock Market LLC

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 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On November 10, 2025, Brett McKeone was elected as Chief Operating Officer of Oaktree Specialty Lending Corporation (the “Company”) effective as of December 31, 2025. Mr. McKeone, 48, is a managing director within Oaktree’s Global Private Debt strategy. Prior to joining Oaktree in 2007, he was a senior consultant in the Strategy and Operations practice of Deloitte Consulting LLP. Prior thereto, he was an analyst with Exxon Mobil Corporation. Mr. McKeone holds both M.S. and B.S. degrees in mechanical engineering from the Massachusetts Institute of Technology and an M.B.A. from the UCLA Anderson School of Management. He is a CFA charterholder.

Mr. McKeone has no family relationships with any current director, executive officer, or person nominated to become a director or executive officer, of us, and there are no transactions or proposed transactions, to which the Company is a party, or intended to be a party, in which Mr. McKeone has, or will have, a material interest subject to disclosure under Item 404(a) of Regulation S-K.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

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.

				OAKTREE SPECIALTY LENDING CORPORATION
Date: November 14, 2025				By:		/s/ Christopher McKown
						Name: Christopher McKown Title: Chief Financial Officer and Treasurer