Oaktree Specialty Lending Corporation

SecurityOCSL / Oaktree Specialty Lending Corporation
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership235,554 shares
Latest Disclosed Value $ 2,661,943
Advisor Group Holdings, Inc. reports 32.52% increase in ownership of OCSL / Oaktree Specialty Lending Corporation

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 235,554 shares of Oaktree Specialty Lending Corporation (US:OCSL) valued at $2,661,760 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 177,744 shares of Oaktree Specialty Lending Corporation. This represents a change in shares of 32.52% during the quarter. The current value of the position is $2,781,893 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F OAKTREE SPECIALTY LENDING COM 67401P405 235,554 57,810 32.52 2,662 17.54 0.0023
2026-02-17 2025-12-31 13F OAKTREE SPECIALTY LENDING COM 67401P405 177,744 -47,476 -21.08 2,265 -24.48 0.0033
2025-11-14 2025-09-30 13F OAKTREE SPECIALTY LENDING COM 67401P405 225,220 -7,305 -3.14 2,999 -5.60 0.0042
2025-09-04 2025-06-30 13F/A-1 OAKTREE SPECIALTY LENDING COM 67401P405 232,525 -333,282 -58.90 3,177 -63.47 0.0057
2025-08-13 2025-06-30 13F OAKTREE SPECIALTY LENDING COM 67401P405 462,762 -103,045 7,075 0.0082
2025-05-12 2025-03-31 13F OAKTREE SPECIALTY LENDING COM 67401P405 565,807 91,169 19.21 8,695 19.82 0.0194
2025-06-06 2024-12-31 13F/A-1 OAKTREE SPECIALTY LENDING COM 67401P405 474,638 -21,192 -4.27 7,257 -10.32 0.0163
2025-02-07 2024-12-31 13F OAKTREE SPECIALTY LENDING COM 67401P405 499,533 3,703 8,140 0.0208
2024-11-13 2024-09-30 13F OAKTREE SPECIALTY LENDING COM 67401P405 495,830 -45,202 -8.35 8,092 -20.53 0.0182
2024-08-13 2024-06-30 13F OAKTREE SPECIALTY LENDING COM 67401P405 541,032 244,947 82.73 10,183 74.91 0.0241
2024-05-10 2024-03-31 13F OAKTREE SPECIALTY LENDING COM 67401P405 296,085 -7,312 -2.41 5,822 -6.04 0.0130
2024-02-12 2023-12-31 13F OAKTREE SPECIALTY LENDING COM 67401P405 303,397 224,841 286.22 6,196 292.15 0.0108
2023-11-13 2023-09-30 13F OAKTREE SPECIALTY LENDING COM 67401P405 78,556 13,258 20.30 1,581 24.61 0.0023
2023-08-21 2023-06-30 13F/A-1 OAKTREE SPECIALTY LENDING COM 67401P405 65,298 4,484 7.37 1,269 11.13 0.0023
2023-08-10 2023-06-30 13F OAKTREE SPECIALTY LENDING COM 67401P405 65,298 4,484 1,269 0.0003
2023-05-12 2023-03-31 13F OAKTREE SPECIALTY LENDING COM 67401P405 60,814 -175,723 -74.29 1,141 -29.78 0.0021
2023-02-10 2022-12-31 13F OAKTREE SPECIALTY LENDING COM 67401P108 236,537 33,429 16.46 1,626 33.20 0.0033
2022-11-14 2022-09-30 13F OAKTREE SPECIALTY LENDING COM 67401P108 203,108 33,575 19.80 1,220 9.81 0.0028
2022-08-10 2022-06-30 13F OAKTREE SPECIALTY LENDING COM 67401P108 169,533 -33,515 -16.51 1,111 -25.78 0.0025
2022-05-04 2022-03-31 13F OAKTREE SPECIALTY LENDING COM 67401P108 203,048 27,562 15.71 1,497 14.27 0.0029
2022-02-03 2021-12-31 13F OAKTREE SPECIALTY LENDING COM 67401P108 175,486 27,367 18.48 1,310 25.24 0.0025
2021-11-05 2021-09-30 13F OAKTREE SPECIALTY LENDING COM 67401P108 148,119 -57,890 -28.10 1,046 -24.09 0.0022
2021-08-02 2021-06-30 13F OAKTREE SPECIALTY LENDING COM 67401P108 206,009 52,097 33.85 1,378 44.44 0.0030
2021-05-13 2021-03-31 13F OAKTREE SPECIALTY LENDING COM 67401P108 153,912 75,052 95.17 954 117.31 0.0023
2021-02-10 2020-12-31 13F OAKTREE SPECIALTY LENDING COM 67401P108 78,860 -4,161 -5.01 439 9.20 0.0012
2020-11-12 2020-09-30 13F OAKTREE SPECIALTY LENDING COM 67401P108 83,021 -3,181 -3.69 402 4.42 0.0012
2020-08-14 2020-06-30 13F OAKTREE SPECIALTY LENDING COM 67401P108 86,202 -6,474 -6.99 385 28.33 0.0013
2020-05-18 2020-03-31 13F OAKTREE SPECIALTY LENDING COM 67401P108 92,676 92,676 300 0.0012
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.