Sixth Street Specialty Lending, Inc.
US ˙ NYSE ˙ US83012A1097

SecurityTSLX / Sixth Street Specialty Lending, Inc.
InstitutionLPL Financial LLC
Latest Disclosed Ownership672,738 shares
Latest Disclosed Value $ 12,364,928
LPL Financial LLC reports 3.04% decrease in ownership of TSLX / Sixth Street Specialty Lending, Inc.

On May 6, 2026 - LPL Financial LLC filed a 13F-HR form disclosing ownership of 672,738 shares of Sixth Street Specialty Lending, Inc. (US:TSLX) valued at $12,364,924 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 693,805 shares of Sixth Street Specialty Lending, Inc.. This represents a change in shares of -3.04% during the quarter. The current value of the position is $11,698,914 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)
2026-05-06 2026-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 672,738 -21,067 -3.04 12,365 -17.95 0.0033
2026-02-11 2025-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 693,805 31,892 4.82 15,069 -0.41 0.0041
2025-11-12 2025-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 661,913 52,686 8.65 15,131 4.32 0.0044
2025-08-12 2025-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 609,227 5,683 0.94 14,506 7.39 0.0048
2025-05-07 2025-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 603,544 29,685 5.17 13,507 10.50 0.0053
2025-02-11 2024-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 573,859 38,169 7.13 12,223 11.15 0.0050
2024-11-08 2024-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 535,690 41,491 8.40 10,998 4.23 0.0049
2024-08-07 2024-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 494,199 99,300 25.15 10,551 24.69 0.0053
2024-05-10 2024-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 394,899 14,888 3.92 8,463 3.09 0.0045
2024-02-14 2023-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 380,011 17,549 4.84 8,208 10.80 0.0050
2023-11-13 2023-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 362,462 16,133 4.66 7,409 14.46 0.0052
2023-07-31 2023-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 346,329 42,809 14.10 6,473 16.53 0.0046
2023-05-10 2023-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 303,520 34,053 12.64 5,554 15.80 0.0043
2023-02-07 2022-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 269,467 12,903 5.03 4,797 14.41 0.0041
2022-11-14 2022-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 256,564 31,870 14.18 4,192 0.84 0.0040
2022-08-12 2022-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 224,694 -8,582 -3.68 4,157 -23.49 0.0039
2022-05-16 2022-03-31 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 233,276 36,969 18.83 5,433 18.31 0.0047
2022-02-14 2021-12-31 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 196,307 29,351 17.58 4,592 23.84 0.0039
2021-11-15 2021-09-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 166,956 29,214 21.21 3,708 21.34 0.0035
2021-08-13 2021-06-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 137,742 61,354 80.32 3,056 90.29 0.0031
2021-05-14 2021-03-31 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 76,388 18,070 30.99 1,606 32.73 0.0018
2021-02-12 2020-12-31 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 58,318 -4,751 -7.53 1,210 11.52 0.0016
2020-11-09 2020-09-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 63,069 26,961 74.67 1,085 82.35 0.0017
2020-08-13 2020-06-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 36,108 36,108 595 0.0010
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.