Sixth Street Specialty Lending TSLX Institutional Ownership

NYSE TSLX

$17.87 -0.17 (-0.94%)

As of: Sep 9, 2026 · 3:59 PM EDT

Institutions by Trading Activity

240 Institutions

Increased 111 46.3%

Unchanged 50 20.8%

Reduced 79 32.9%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

52.11%

▼-19.22 pp QoQ

Shares Held by Institutions

49.51Mn

of 95.02Mn outstanding

▼-20.75% QoQ

Shares Outstanding

95.02Mn

45.51Mn held outside 13F filers

Institutional Investors

240

filed 13F for Jun 2026

▼-19 vs prior quarter

Net Shares Added (QoQ)

-12.96Mn

distributed since last quarter

Value of Holdings

$910.03Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Sixth Street Specialty Lending, Inc. (NYSE:TSLX) appears in 240 institutional 13F filings for the quarter ending June 2026.

Their combined ownership stood at 52.1% of outstanding shares in June 2026, down from 71.3% in March 2026.
They decreased total shares held in Sixth Street Specialty Lending by -20.75% from last quarter, and the number of investors in TSLX decreased 1.23% annually.
Of these 240 holders, 111 added to their stakes in Sixth Street Specialty Lending, 79 trimmed positions, and 50 made no changes.
Altogether, these fund groups held 49.51Mn shares in TSLX by June 2026, down by 12.96Mn shares quarter on quarter, and up 1.17Mn shares year over year.
As of June 30, 2026, the biggest holder of Sixth Street Specialty Lending is STRS OHIO at 6.03Mn shares, representing 6.35% of shares outstanding.
Top purchasers of TSLX stock for the quarter ending June 2026 included STRS OHIO (1.68Mn), RIVERNORTH CAPITAL MANAGEMENT, LLC (678.65K), VAN ECK ASSOCIATES CORP (519.46K), UBS Group AG (515.01K), Pathstone Holdings, LLC (229.26K).
The biggest sellers of Sixth Street Specialty Lending for the quarter ending June 2026 included Quantum Portfolio Management LLC (14.88Mn), Stifel Financial Corp (543.71K), ENVESTNET ASSET MANAGEMENT INC (538.38K), Cetera Investment Advisers (529.69K), Qube Research & Technologies Ltd (387.4K).
According to Business Quant data, leading holders of TSLX for June 2026 are STRS OHIO (6.03Mn), Sound Income Strategies, LLC (2.71Mn), Progeny 3, Inc. (2.48Mn), UBS Group AG (2.37Mn), VAN ECK ASSOCIATES CORP (2.37Mn), OMERS ADMINISTRATION Corp (2.01Mn), ARES MANAGEMENT LLC (1.4Mn), Allen Investment Management, LLC (1.37Mn), Wells Fargo & Company/Mn (1.32Mn), Cerity Partners LLC (1.21Mn).

Form 13F Holdings

240 Institutional Holders

Report period 30 Jun, 2026

Total shares held 49.51Mn

Of outstanding 52.11%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	STRS OHIO	0000820478	6,029,281	6.35%	▲1,681,571	+38.68%	$103.52Mn
2	Sound Income Strategies, LLC	0001730960	2,706,290	2.85%	▲135,238	+5.26%	$46.47Mn
3	Progeny 3, Inc.	0001536006	2,476,398	2.61%	0	0.00%	$42.52Mn
4	UBS Group AG	0001610520	2,373,275	2.50%	▲515,008	+27.71%	$40.75Mn
5	VAN ECK ASSOCIATES CORP	0000869178	2,366,266	2.49%	▲519,456	+28.13%	$40.63Mn
6	OMERS ADMINISTRATION Corp	0001053321	2,012,327	2.12%	▲50,514	+2.57%	$34.55Mn
7	ARES MANAGEMENT LLC	0001259313	1,404,779	1.48%	▲50,000	+3.69%	$24.12Mn
8	Allen Investment Management, LLC	0001326234	1,368,939	1.44%	▼27,022	-1.94%	$23.50Mn
9	Wells Fargo & Company/Mn	0000072971	1,316,091	1.39%	▼22,532	-1.68%	$22.60Mn
10	Cerity Partners LLC	0001566475	1,207,716	1.27%	▲71,720	+6.31%	$20.74Mn
11	Callodine Capital Management, LP	0001741675	1,176,080	1.24%	▲46,560	+4.12%	$20.19Mn
12	Muzinich & Co., Inc.	0001618824	1,075,226	1.13%	▲28,230	+2.70%	$18.46Mn
13	Morgan Stanley	0000895421	1,069,572	1.13%	▼258,043	-19.44%	$18.36Mn
14	RIVERNORTH CAPITAL MANAGEMENT, LLC	0001447578	969,599	1.02%	▲678,646	+233.25%	$16.65Mn
15	Advisors Capital Management, LLC	0001345576	864,107	0.91%	▲78,622	+10.01%	$14.84Mn
16	TECTONIC ADVISORS LLC	0001859918	845,203	0.89%	▲117,104	+16.08%	$14.51Mn
17	Sumitomo Mitsui Trust Group, Inc.	0001475365	792,452	0.83%	▲22,279	+2.89%	$13.61Mn
18	LSV ASSET MANAGEMENT	0001050470	789,100	0.83%	▼12	0.00%	$13.55K
19	Legal & General Group Plc	0000764068	787,794	0.83%	▲55,146	+7.53%	$13.53Mn
20	Bank Of America Corp /De/	0000070858	764,474	0.80%	▲28,748	+3.91%	$13.13Mn

Showing 1 to 20 of 240 holders