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

SecurityTSLX / Sixth Street Specialty Lending, Inc.
InstitutionD. E. Shaw & Co., Inc.
ManagerDE Shaw
Latest Disclosed Ownership185,754 shares
Latest Disclosed Value $ 3,414,159
D. E. Shaw & Co., Inc. ownership in TSLX / Sixth Street Specialty Lending, Inc.

On May 15, 2026 - D. E. Shaw & Co., Inc. filed a 13F-HR form disclosing ownership of 185,754 shares of Sixth Street Specialty Lending, Inc. (US:TSLX) valued at $3,414,159 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of Sixth Street Specialty Lending, Inc.. The current value of the position is $3,207,972 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 SIXTH STREET SPECIALTY LENDI COM 83012A109 185,754 185,754 3,414 0.0015
2026-02-17 2025-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 0 -93,900 -100.00 0 -100.00
2025-11-14 2025-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 93,900 69,294 281.61 2,147 266.84 0.0012
2025-08-14 2025-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 24,606 24,606 586 0.0004
2024-11-14 2023-12-31 13F/A-1 SIXTH STREET SPECIALTY LENDI COM 83012A109 0 -14,703 -100.00 0 -100.00
2024-02-14 2023-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 0 0
2023-11-14 2023-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 14,703 -45,824 -75.71 301 -73.47 0.0003
2023-08-14 2023-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 60,527 -5,234 -7.96 1,131 -5.99 0.0012
2023-05-15 2023-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 65,761 -54,785 -45.45 1,203 -43.92 0.0013
2023-02-14 2022-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 120,546 -54,111 -30.98 2,146 -24.84 0.0024
2022-11-14 2022-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 174,657 64,338 58.32 2,854 39.83 0.0034
2022-08-15 2022-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 110,319 17,968 19.46 2,041 -5.11 0.0024
2022-05-16 2022-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 92,351 -50,499 -35.35 2,151 -35.62 0.0020
2022-02-14 2021-12-31 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 142,850 -147,139 -50.74 3,341 -48.13 0.0028
2021-11-15 2021-09-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 289,989 -62,751 -17.79 6,441 -17.71 0.0058
2021-08-16 2021-06-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 352,740 213,361 153.08 7,827 167.04 0.0068
2021-05-17 2021-03-31 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 139,379 62,838 82.10 2,931 84.57 0.0028
2021-02-16 2020-12-31 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 76,541 21,164 38.22 1,588 66.63 0.0014
2020-11-16 2020-09-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 55,377 55,377 953 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.