Sixth Street Specialty Lending (TSLX): which funds own it

Who owns Sixth Street Specialty Lending?

As of Jun 30, 2026, the largest holders reported on Form 13F were Ohio Strs (6.3% of the shares), Sixth Street Partners Management (2.9%) and Sound Income Strategies (2.8%).

Sources:All of the company's proxy statements on EDGAR ↗

13F percentages divide the shares each institution reports by the shares outstanding on the cover of the company's latest report before the quarter end (May 5, 2026). Entities of the same group file separately and are not added up. We hold 13D and 13G filings made since December 2024: a holder above 5% that has not filed since then does not appear here.

• Ohio Strs6.0 MType not verified · 6.30% of the company+1.7 M
• Sixth Street Partners Management2.7 MPrivate equity or venture capital · 2.84% of the company0
• Sound Income Strategies2.7 MType not verified · 2.83% of the company+135 K
• Progeny 3concentrated2.5 MType not verified · 2.59% of the company0
• UBS Group2.4 MBank or trading desk · 2.48% of the company+515 K
• VAN ECK Associates2.4 MInvestment firm · 2.47% of the company+519 K
• Omers Administration2.0 MType not verified · 2.10% of the company+51 K
• Ares Management1.4 MPrivate equity or venture capital · 1.47% of the company+50 K
• Allen Investment Management1.4 MType not verified · 1.43% of the company−27 K
• Wells Fargo1.3 MBank or trading desk · 1.38% of the company−23 K

The 10 13F filers with the most shares as of Jun 30, 2026, whatever their type (index firms usually come first). “Change”: shares added or cut versus the previous quarter, split-adjusted; “no data” = there is no comparable portfolio for the previous quarter (no filing, or a filing with its holdings under confidential treatment). “% of the company” only where shares outstanding are up to date. Entities of the same group file separately and some 13F filings include other managers: there may be double counting. With a free account: the top 25, the largest buyers and the largest sellers.

Held by institutions (13F)

Institutions (13F): 55.0% of the shares · top 10: 26.1% · in index firms: 2.7% of the institutional total

Shares reported by the 243 13F filers as of Jun 30, 2026, divided by the shares outstanding on the cover of the company's latest report (May 5, 2026). It is not all institutional ownership: only managers above $100M file a 13F, and it excludes short positions. Entities of the same group file separately and some 13F filings include other managers: there may be double counting. We only publish it where the figure is credible: not for ADRs, companies with more than one share class or stale shares-outstanding data.

Shares outstanding: buybacks and dilution

From the statements the company filed with the SEC (10-K). The change compares average diluted shares of each fiscal year, on today's basis: negative = it bought back more than it issued; positive = dilution. “No data” = the company does not report that item under a tag we can read; it does not mean zero.

Earnings quality and debt

From the figures the company filed with the SEC. Cash flow over net income near or above 1 means earnings are collected in cash; far below, that part is accounting. Coverage says how many times operating income pays the latest fiscal year's interest. Maturities come from the debt note of the latest annual report, counted from its closing date. “No data” never means zero.

Flagged material events (8-K)

• Feb 23, 2026Routinefiling ↗

  Change in directors or officers (Item 5.02)

  «Internal Letter to Sixth Street Direct Lending Team»

Alert items the company itself flagged in its 8-K filings with the SEC, most serious first. It is the form's label, with no interpretation from us: Item 5.02 covers routine appointments as well as a chief executive's departure; open the filing. The quoted headline is the original press release's.