Sixth Street 전문 대출, Inc.
US ˙ NYSE ˙ US83012A1097

SecurityTSLX / Sixth Street Specialty Lending, Inc.
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership611,805 shares
Latest Disclosed Value $ 11,244,976
Qube Research & Technologies Ltd reports 126.95% increase in ownership of TSLX / Sixth Street Specialty Lending, Inc.

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 611,805 shares of Sixth Street Specialty Lending, Inc. (US:TSLX) valued at $11,244,976 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 269,578 shares of Sixth Street Specialty Lending, Inc.. This represents a change in shares of 126.95% during the quarter. The current value of the position is $10,639,289 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 611,805 342,227 126.95 11,245 92.04 0.0125
2026-02-17 2025-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 269,578 197,508 274.05 5,855 255.49 0.0059
2025-11-14 2025-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 72,070 21,296 41.94 1,648 36.34 0.0017
2025-08-14 2025-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 50,774 -168,294 -76.82 1,209 -75.36 0.0012
2025-05-15 2025-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 219,068 -53,641 -19.67 4,903 -15.60 0.0057
2025-02-14 2024-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 272,709 -88,377 -24.48 5,809 -21.65 0.0076
2024-11-14 2024-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 361,086 126,056 53.63 7,413 47.76 0.0109
2024-08-14 2024-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 235,030 161,414 219.26 5,018 218.14 0.0079
2024-05-14 2024-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 73,616 73,616 1,578 0.0025
2023-02-14 2022-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 0 -50,034 -100.00 0 -100.00
2022-11-14 2022-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 50,034 -33,495 -40.10 818 -47.06 0.0049
2022-08-15 2022-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 83,529 64,362 335.80 1,545 246.41 0.0114
2022-05-09 2022-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 19,167 -14,112 -42.41 446 -42.67 0.0038
2022-02-10 2021-12-31 13F/A-1 SIXTH STREET SPECIALTY LENDN COM 83012A109 33,279 33,279 778 0.0060
2022-02-01 2021-12-31 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 33,279 33,279 778 0.0060
2021-11-12 2021-09-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 0 -15,985 -100.00 0 -100.00
2021-08-13 2021-06-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 15,985 15,985 355 0.0040
2021-02-16 2020-12-31 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 0 -18,838 -100.00 0 -100.00
2020-11-12 2020-09-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 18,838 -48,835 -72.16 324 -70.97 0.0046
2020-08-14 2020-06-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 67,673 67,673 1,116 0.0164
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.