# Sixth Street Specialty Lending, Inc.: overview

TSLX · NYSE · CIK 1508655 · [Other](/sectors/other.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/tslx.md) · [Financials](/companies/tslx/financials.md) · [Filings](/companies/tslx/filings.md) · [Insiders](/companies/tslx/insiders.md)

Revenue is not reported in this company’s XBRL financial statements.

## Last eight quarters

| Line item | Unit | Q3 FY2024 (2024-09-30) | Q4 FY2024 (2024-12-31) | Q1 FY2025 (2025-03-31) | Q2 FY2025 (2025-06-30) | Q3 FY2025 (2025-09-30) | Q4 FY2025 (2025-12-31) | Q1 FY2026 (2026-03-31) | Q2 FY2026 (2026-06-30) |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
| Revenue | $ | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Net margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Diluted EPS | $ per share | [0.44](/filings/0001193125-25-264618.md) | not reported | [0.39](/filings/0001193125-26-206313.md) | [0.63](/filings/0001193125-26-332725.md) | [0.47](/filings/0001193125-25-264618.md) | not reported | [(0.27)](/filings/0001193125-26-206313.md) | [0.43](/filings/0001193125-26-332725.md) |
| Free cash flow | $ | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |

- Revenue. XBRL not reported.
- Gross margin (gross profit / revenue). XBRL not reported.
- Operating margin (operating income / revenue). XBRL not reported.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Net income: us-gaap:ProfitLoss.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities. Derived values: 9-month figure less the 6-month figure; 12-month figure less the 9-month figure; 6-month figure less the 3-month figure.

## Last five fiscal years

| Line item | Unit | FY (2021-12-31) | FY2022 (2022-12-31) | FY2023 (2023-12-31) | FY2024 (2024-12-31) | FY2025 (2025-12-31) |
| --- | --- | ---: | ---: | ---: | ---: | ---: |
| Revenue | $ | not reported | not reported | not reported | not reported | not reported |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | not reported | not reported | not reported | not reported | not reported |
| Net margin | % | not reported | not reported | not reported | not reported | not reported |
| Diluted EPS | $ per share | [2.79](/filings/0000950170-24-015845.md) | [1.38](/filings/0000950170-25-019845.md) | [2.61](/filings/0001193125-26-048664.md) | [2.03](/filings/0001193125-26-048664.md) | [1.81](/filings/0001193125-26-048664.md) |
| Free cash flow | $ | not reported | not reported | not reported | not reported | not reported |

- Revenue. XBRL not reported.
- Gross margin (gross profit / revenue). XBRL not reported.
- Operating margin (operating income / revenue). XBRL not reported.
- Net margin (net income / revenue). XBRL Net income: us-gaap:ProfitLoss; Net income: us-gaap:NetIncomeLoss.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities.

Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing.

## Insider purchases and sales

The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/tslx/insiders.md)

None in coverage.

## Funds that report holding it

From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md)

| Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | --- | --- |
| [STRS OHIO](/funds/820478.md) | 2026-06-30 | $103.5m | 6,029,281 |  | Added +1,681,571 |
| [Sixth Street Partners Management Company, L.P.](/funds/1812095.md) | 2026-06-30 | $46.6m | 2,714,226 |  | Unchanged |
| [Sound Income Strategies, LLC](/funds/1730960.md) | 2026-06-30 | $46.5m | 2,706,290 |  | Added +135,238 |
| [Progeny 3, Inc.](/funds/1536006.md) | 2026-06-30 | $42.5m | 2,476,398 |  | Unchanged |
| [UBS Group AG](/funds/1610520.md) | 2026-06-30 | $40.7m | 2,373,275 |  | Added +515,008 |
| [VAN ECK ASSOCIATES CORP](/funds/869178.md) | 2026-06-30 | $40.6m | 2,366,266 |  | Added +519,456 |
| [OMERS ADMINISTRATION Corp](/funds/1053321.md) | 2026-06-30 | $34.6m | 2,012,327 |  | Added +50,514 |
| [ARES MANAGEMENT LLC](/funds/1259313.md) | 2026-06-30 | $24.1m | 1,404,779 |  | Added +50,000 |
| [Allen Investment Management, LLC](/funds/1326234.md) | 2026-06-30 | $23.5m | 1,368,939 |  | Reduced −27,022 |
| [WELLS FARGO & COMPANY/MN](/funds/72971.md) | 2026-06-30 | $22.6m | 1,316,091 |  | Reduced −22,532 |

## Recent filings

[All 877 filings](/companies/tslx/filings.md)

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-08-04 | 16:05 ET | [8-K](/filings/0001193125-26-332772.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-332772 |
| 2026-08-04 | 16:02 ET | [10-Q](/filings/0001193125-26-332725.md) | Quarterly report, period 2026-06-30 | 0001193125-26-332725 |
| 2026-06-18 | 16:54 ET | [8-K](/filings/0001193125-26-276036.md) | 5.07 Shareholder vote results | 0001193125-26-276036 |
| 2026-05-22 | 16:18 ET | [8-K](/filings/0001193125-26-236952.md) | 5.07 Shareholder vote results | 0001193125-26-236952 |
| 2026-05-14 | 16:08 ET | [8-K](/filings/0001193125-26-224000.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-26-224000 |
| 2026-05-05 | 16:05 ET | [8-K](/filings/0001193125-26-206354.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-206354 |
| 2026-05-05 | 16:02 ET | [10-Q](/filings/0001193125-26-206313.md) | Quarterly report, period 2026-03-31 | 0001193125-26-206313 |
| 2026-04-09 | 16:24 ET | [DEF 14A](/filings/0001193125-26-149696.md) | Proxy statement, period 2026-05-21 | 0001193125-26-149696 |
| 2026-04-09 | 16:20 ET | [DEF 14A](/filings/0001193125-26-149689.md) | Proxy statement, period 2026-05-21 | 0001193125-26-149689 |
| 2026-02-23 | 16:11 ET | [8-K](/filings/0001193125-26-063983.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-26-063983 |

## Latest annual report

[Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0001193125-26-048664.md), filed Feb 12, 2026.

## Forecast league

Not in this season’s league. [This season’s league](/leagues.md)

## About the filer

- CIK: 1508655
- Tickers: TSLX
- Exchange: NYSE
- SIC code: not reported
- State of incorporation: DE
- Filer category: Large accelerated filer

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 24, 2026, 15:41 ET. No prices; not investment advice.