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

SecurityTSLX / Sixth Street Specialty Lending, Inc.
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership521,820 shares
Latest Disclosed Value $ 9,591,052
Neuberger Berman Group LLC reports 0.84% decrease in ownership of TSLX / Sixth Street Specialty Lending, Inc.

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 521,820 shares of Sixth Street Specialty Lending, Inc. (US:TSLX) valued at $9,591,052 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 526,234 shares of Sixth Street Specialty Lending, Inc.. This represents a change in shares of -0.84% during the quarter. The current value of the position is $9,074,450 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)
2026-05-14 2026-03-31 13F SIXTH STREET SPECIALTY LENDI Common 83012A109 521,820 -4,414 -0.84 9,591 -16.08 0.0037
2026-02-13 2025-12-31 13F SIXTH STREET SPECIALTY LENDI Common 83012A109 526,234 63,808 13.80 11,430 8.12 0.0085
2025-11-12 2025-09-30 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 462,426 -132,603 -22.29 10,571 -25.38 0.0077
2025-08-25 2025-06-30 13F/A-1 SIXTH STREET SPECIALTY LENDING Common 83012A109 595,029 -9,691 -1.60 14,168 4.68 0.0109
2025-08-13 2025-06-30 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 595,029 -9,691 14,168 0.0056
2025-05-13 2025-03-31 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 604,720 30,907 5.39 13,534 10.73 0.0113
2025-02-13 2024-12-31 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 573,813 37,889 7.07 12,222 11.09 0.0097
2024-11-14 2024-09-30 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 535,924 -36,105 -6.31 11,003 -9.91 0.0086
2024-11-14 2024-06-30 13F/A-1 SIXTH STREET SPECIALTY LENDING Common 83012A109 572,029 25,937 4.75 12,213 4.36 0.0100
2024-08-13 2024-06-30 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 572,029 25,937 12,213 0.0100
2024-11-14 2024-03-31 13F/A-1 SIXTH STREET SPECIALTY LENDING Common 83012A109 546,092 15,548 2.93 11,703 2.12 0.0097
2024-05-13 2024-03-31 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 546,092 15,548 11,703 0.0097
2024-11-14 2023-12-31 13F/A-2 SIXTH STREET SPECIALTY LENDING Common 83012A109 530,544 -11,035 -2.04 11,460 3.52 0.0100
2024-02-09 2023-12-31 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 530,544 -11,035 11,460 0.0100
2023-11-14 2023-09-30 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 541,579 11,924 2.25 11,070 11.82 0.0101
2023-08-11 2023-06-30 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 529,655 7,094 1.36 9,899 3.52 0.0089
2023-05-12 2023-03-31 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 522,561 989 0.19 9,563 3.01 0.0089
2023-02-13 2022-12-31 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 521,572 1,516 0.29 9,284 9.24 0.0091
2022-11-15 2022-09-30 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 520,056 4,447 0.86 8,498 -10.91 0.0089
2022-08-15 2022-06-30 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 515,609 25,151 5.13 9,539 -16.49 0.0096
2022-05-23 2022-03-31 13F/A-1 SIXTH STREET SPECIALTY LENDING Common 83012A109 490,458 15,262 3.21 11,423 2.77 0.0097
2022-05-13 2022-03-31 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 490,458 15,262 11,423 0.0051
2022-02-11 2021-12-31 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 475,196 -24,175 -4.84 11,115 0.22 0.0087
2021-11-12 2021-09-30 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 499,371 -3,543 -0.70 11,091 -0.62 0.0097
2021-08-13 2021-06-30 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 502,914 48,514 10.68 11,160 16.79 0.0097
2021-05-13 2021-03-31 13F SIXTH STREET SPECIALTY LENDING Common 83012A109 454,400 -960 -0.21 9,556 1.13 0.0091
2021-02-10 2020-12-31 13F TPG SPECIALTY LENDING Common 83012A109 455,360 162,102 55.28 9,449 87.22 0.0098
2020-11-12 2020-09-30 13F TPG SPECIALTY LENDING Common 83012A109 293,258 84,883 40.74 5,047 46.89 0.0060
2020-08-13 2020-06-30 13F TPG SPECIALTY LENDING Common 83012A109 208,375 208,375 3,436 0.0043
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.