SEC ownership of Oaktree Specialty Lending Corp

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001414932.

Comparable stake leader

Oaktree Capital I, L.P.

Disclosed value leader

Leonard M. Tannenbaum

Comparable rows

1/50

Latest evidence

30 Jun 2026

Top shareholders Insider holders Latest transactions

Public ticker: OCSL on Nasdaq
Parsed ownership sources: 13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder: Oaktree Capital I, L.P.
Ranking: Comparable ownership first, then disclosed value
Comparable ownership rows: 1 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder: Oaktree Capital I, L.P.
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date: 30 Jun 2026
Freshness: Most recent filing date in this holder set
Issuer CIK: 0001414932
Issuer location: Los Angles, CA

Ownership snapshot

Top shareholders of Oaktree Specialty Lending Corp (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Oaktree Capital I, L.P.

Disclosed value leader

Leonard M. Tannenbaum

Comparable rows

1/50

Latest evidence

30 Jun 2026

13D/G 3/4/5 13F Lead comparable stake: 8.6% 49 rows are not safely comparable across share classes. 13D/G row: Oaktree Capital I, L.P. Showing 1-8 of 50 holder rows.

Quick read

Oaktree Capital I, L.P. leads the comparable SEC ownership view at 8.6%.

1 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Oaktree Capital I, L.P.'s linked filing trail.

Comparable ownership Top 1

Oaktree Capital I, L.P. 8.6%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Oaktree Capital I, L.P.	13D/G Oaktree Capital Holdings, LLC 13D/G	8.6% Reported 13D/G · 03 Feb 2025	$109,633,495 7,524,605 shares	$0	03 Feb 2025
Leonard M. Tannenbaum	3/4/5 Other* 3/4/5	— denominator unverified	$299,508,516 16,639,362 shares	—	28 Dec 2021
OAKTREE CAPITAL MANAGEMENT LP	13F Company 13F	— denominator unverified	$93,994,056 7,872,199 shares	—	30 Jun 2026
PRIVATE MANAGEMENT GROUP INC	13F Company 13F	— denominator unverified	$46,201,642 3,869,484 shares	—	30 Jun 2026
ROYAL BANK OF CANADA	13F Company 13F	— denominator unverified	$34,918,000 2,924,437 shares	—	30 Jun 2026
BRUNI J V & CO /CO	13F Company 13F	— denominator unverified	$29,549,160 2,474,804 shares	—	30 Jun 2026
MORGAN STANLEY	13F Company 13F	— denominator unverified	$28,673,784 2,401,489 shares	—	30 Jun 2026
ARES MANAGEMENT LLC	13F Company 13F	— denominator unverified	$26,319,402 2,204,305 shares	—	30 Jun 2026

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to buying over the last 12 months. Net value: +$70,063.

Buys

$70,063

Insiders: 3

Sells

Insiders: 0

Net

+$70,063

Shares: +6,200

Window

Last 12 months

4 rolling buckets

Buy value Sell value

Shares: 6,200 Shares: 0

Window (months)	Buy shares	Buy value	Sell value	Net value
0-3	1,700	$21,581	$0	+$21,581
3-6	0	$0	$0	$0
6-9	4,500	$48,483	$0	+$48,483
9-12	0	$0	$0	$0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-11 of 11 reporting-owner rows connected to Oaktree Specialty Lending Corp. Open a relationship link for the CIK-to-CIK filing trail.

Rows

Largest Forms 3/4/5 holder

Leonard M. Tannenbaum

Net 12M change

+$70,064

Latest report

12 Aug 2026

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Valuation	Report Date
Leonard M. Tannenbaum	Other*	$299,508,516			Mixed	28 Dec 2021
Craig A. Jacobson	Director	$960,939			Filing P/S	06 May 2025
Mathew Pendo	President	$837,591			Filing P/S	24 Feb 2025
Armen Panossian	Chief Executive Officer and Co-Chief Investment Officer	$285,486	+$21,581	+8.2%	Filing P/S	12 Aug 2026
Deborah Ann Gero	Director	$263,123	+$21,558	+8.9%	Filing P/S	16 Mar 2026
Phyllis R. Caldwell	Director	$253,095	+$26,925	+12%	Filing P/S	16 Mar 2026
Matthew Stewart	Chief Operating Officer	$174,024			Filing P/S	23 Mar 2023
Raghav Khanna	Co-Chief Investment Officer	$95,700			Filing P/S	24 Feb 2025
Christopher McKown	Chief Financial Officer and Treasurer	$91,656			Mixed	17 Mar 2023
Ashley Pak	Chief Compliance Officer	$34,565			Mixed	09 Mar 2023
Brett McKeone	Chief Operating Officer				Mixed	31 Dec 2025

Recent insider transactions for Oaktree Specialty Lending Corp

Showing up to 300 recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	SEC-reported value	SEC-reported price	Shares	Shares owned	Date	Ownership
Armen Panossian	OCSL	Common Stock, par value $0.01 per share	Purchase	8.18%	$21,581	$12.69	1,700	22,489	12 Aug 2026	Direct
Phyllis R. Caldwell	OCSL	Common Stock, par value $0.01 per share	Purchase	11.9%	$26,925	$10.77	2,500	23,500	16 Mar 2026	Direct
Deborah Ann Gero	OCSL	Common Stock, par value $0.01 per share	Purchase	8.92%	$21,558	$10.78	2,000	24,411	16 Mar 2026	Direct

^* marks a reported price that did not pass the local price check.

SEC ownership of Oaktree Specialty Lending Corp

Top shareholders of Oaktree Specialty Lending Corp (13F + 13D/G + 3/4/5)

Oaktree Capital I, L.P. leads the comparable SEC ownership view at 8.6%.

Insider trading overview

Insider holders from Forms 3/4/5

Continue from Oaktree Specialty Lending Corp ownership

Recent insider transactions for Oaktree Specialty Lending Corp