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

SecurityTSLX / Sixth Street Specialty Lending, Inc.
InstitutionWealthstar Advisors, Llc
Latest Disclosed Ownership129,524 shares
Latest Disclosed Value $ 2,380,642
Wealthstar Advisors, Llc reports 0.01% increase in ownership of TSLX / Sixth Street Specialty Lending, Inc.

On April 27, 2026 - Wealthstar Advisors, Llc filed a 13F-HR form disclosing ownership of 129,524 shares of Sixth Street Specialty Lending, Inc. (US:TSLX) valued at $2,380,651 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 129,509 shares of Sixth Street Specialty Lending, Inc.. This represents a change in shares of 0.01% during the quarter. The current value of the position is $2,252,422 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)
2026-04-27 2026-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 129,524 15 0.01 2,381 -15.36 1.1161
2026-01-30 2025-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 129,509 14 0.01 2,813 -5.00 1.2382
2025-11-12 2025-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 129,495 13 0.01 2,960 -3.96 1.1676
2025-07-24 2025-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 129,482 -516 -0.40 3,083 5.95 1.1605
2025-04-25 2025-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 129,998 -606 -0.46 2,909 4.60 1.3319
2025-01-28 2024-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 130,604 130,604 2,782 1.2085
2024-07-18 2024-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 0 -130,562 -100.00 0 -100.00
2024-04-19 2024-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 130,562 -4,287 -3.18 2,798 -3.95 0.9741
2024-01-16 2023-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 134,849 -3,674 -2.65 2,913 2.86 0.4652
2023-11-07 2023-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 138,523 14 0.01 2,831 9.39 1.0884
2023-07-17 2023-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 138,509 -2,021 -1.44 2,589 0.66 1.0880
2023-05-04 2023-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 140,530 -962 -0.68 2,572 2.10 0.9757
2023-02-15 2022-12-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 141,492 11 0.01 2,519 8.96 1.1461
2022-11-14 2022-09-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 141,481 11 0.01 2,311 -11.73 1.1001
2022-08-08 2022-06-30 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 141,470 -2,320 -1.61 2,618 -21.83 1.0090
2022-05-13 2022-03-31 13F SIXTH STREET SPECIALTY LENDI COM 83012A109 143,790 18 0.01 3,349 -0.39 1.2408
2022-02-09 2021-12-31 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 143,772 -691 -0.48 3,362 4.67 1.1535
2021-11-12 2021-09-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 144,463 -2,467 -1.68 3,212 -1.47 0.9708
2021-08-13 2021-06-30 13F SIXTH STREET SPECIALTY LENDN COM 83012A109 146,930 146,930 3,260 1.0224
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.