Sixth Street Specialty Lending, Inc. (TSLX) — Institutional Holders, Q2 2026

242 institutional investment managers reported a TSLX position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $906.9M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← TSLX stock profile

TSLX in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

Trimmed

Sold out

Biggest buyers

STRS OHIOAdded · +1,681,571 sh+$28.9M
RIVERNORTH CAPITAL MANAGEMENTAdded · +678,646 sh+$11.7M
VAN ECK ASSOCIATESAdded · +519,456 sh+$8.9M
UBS Group AGAdded · +515,008 sh+$8.8M
PathstoneAdded · +229,262 sh+$3.9M

Biggest sellers

PANORAMIC INVESTMENT ADVISORSSold out · -611,047 sh-$10.5M
Columbus MacroSold out · -549,170 sh-$9.4M
STIFEL FINANCIALTrimmed · -543,711 sh-$9.3M
ENVESTNET ASSET MANAGEMENTTrimmed · -538,382 sh-$9.2M
Cetera Investment AdvisersTrimmed · -529,688 sh-$9.1M

TSLX 13F holders ranked 1–100 of 242

Institutional investors reporting a position in Sixth Street Specialty Lending, Inc. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	STRS OHIO#1 · 6,029,281 sh	6,029,281	$103.5M	0.39%	+38.7%
2	Sixth Street Partners Management Company, L.P.#2 · 2,714,226 sh	2,714,226	$46.6M	8.05%	0.0%
3	Sound Income Strategies#3 · 2,706,290 sh	2,706,290	$46.5M	—	+5.3%
4	Progeny 3#4 · 2,476,398 sh	2,476,398	$42.5M	2.19%	0.0%
5	UBS Group AG#5 · 2,373,275 sh	2,373,275	$40.7M	<0.01%	+27.7%
6	VAN ECK ASSOCIATES#6 · 2,366,266 sh	2,366,266	$40.6M	0.02%	+28.1%
7	OMERS ADMINISTRATION#7 · 2,012,327 sh	2,012,327	$34.6M	0.21%	+2.6%
8	ARES MANAGEMENT#8 · 1,404,779 sh	1,404,779	$24.1M	1.05%	+3.7%
9	Allen Investment Management#9 · 1,368,939 sh	1,368,939	$23.5M	0.28%	-1.9%
10	WELLS FARGO & COMPANY#10 · 1,316,091 sh	1,316,091	$22.6M	<0.01%	-1.7%
11	Cerity Partners#11 · 1,207,716 sh	1,207,716	$20.7M	0.03%	+6.3%
12	Callodine Capital Management#12 · 1,176,080 sh	1,176,080	$20.2M	1.32%	+4.1%
13	Muzinich#13 · 1,075,226 sh	1,075,226	$18.5M	—	+2.7%
14	MORGAN STANLEY#14 · 1,069,572 sh	1,069,572	$18.4M	<0.01%	-19.4%
15	RIVERNORTH CAPITAL MANAGEMENT#15 · 969,599 sh	969,599	$16.6M	0.79%	+233.2%
16	Advisors Capital Management#16 · 864,107 sh	864,107	$14.8M	0.16%	+10.0%
17	TECTONIC ADVISORS#17 · 845,203 sh	845,203	$14.5M	—	+16.1%
18	Sumitomo Mitsui#18 · 792,452 sh	792,452	$13.6M	<0.01%	+2.9%
19	LSV ASSET MANAGEMENT#19 · 789,100 sh	789,100	$13.5M	0.02%	0.0%
20	Legal & General Group Plc#20 · 787,794 sh	787,794	$13.5M	<0.01%	+7.5%
21	BANK OF AMERICA#21 · 764,474 sh	764,474	$13.1M	<0.01%	+3.9%
22	RAYMOND JAMES FINANCIAL#22 · 736,813 sh	736,813	$12.7M	<0.01%	-19.8%
23	FRANKLIN RESOURCES#23 · 719,709 sh	719,709	$12.4M	<0.01%	+18.0%
24	SCS Capital Management#24 · 692,199 sh	692,199	$11.9M	0.11%	+3.9%
25	Pathstone#25 · 672,162 sh	672,162	$11.5M	0.03%	+51.8%
26	LPL Financial#26 · 651,650 sh	651,650	$11.2M	<0.01%	-3.1%
27	GOLDMAN SACHS GROUP#27 · 624,772 sh	624,772	$10.7M	<0.01%	-2.3%
28	Union Bancaire Privee, UBP SA#28 · 3,482 sh	3,482	$9.5M	0.10%	0.0%
29	JPMORGAN CHASE#29 · 507,514 sh	507,514	$8.7M	<0.01%	-20.9%
30	Cresset Asset Management#30 · 501,191 sh	501,191	$8.6M	0.03%	+7.2%
31	Gilman Hill Asset Management#31 · 500,602 sh	500,602	$8.6M	—	+3.4%
32	Neuberger Berman Group#32 · 496,166 sh	496,166	$8.5M	<0.01%	-4.9%
33	Melia Wealth#33 · 486,337 sh	486,337	$8.4M	4.81%	-20.4%
34	BlackRock#34 · 435,903 sh	435,903	$7.5M	<0.01%	-5.6%
35	National Philanthropic#35 · 351,000 sh	351,000	$6.0M	0.09%	+62.5%
36	MGO ONE SEVEN#36 · 343,844 sh	343,844	$5.9M	0.10%	-4.1%
37	IFP Advisors#37 · 305,604 sh	305,604	$5.2M	—	+30.6%
38	Altshuler Shaham Ltd#38 · 301,460 sh	301,460	$5.2M	0.06%	0.0%
39	RMR Capital Management#39 · 283,579 sh	283,579	$4.9M	—	+12.2%
40	Janney Montgomery Scott#40 · 269,078 sh	269,078	$4.6M	<0.01%	+30.3%
41	Qube Research & Technologies Ltd#41 · 224,404 sh	224,404	$3.9M	<0.01%	-63.3%
42	CONFLUENCE INVESTMENT MANAGEMENT#42 · 211,954 sh	211,954	$3.6M	—	+2.0%
43	Advisors Asset Management#43 · 210,833 sh	210,833	$3.6M	0.06%	-4.3%
44	D.A. DAVIDSON#44 · 210,672 sh	210,672	$3.6M	0.02%	+5.0%
45	STIFEL FINANCIAL#45 · 207,043 sh	207,043	$3.6M	<0.01%	-72.4%
46	Lighthouse Investment Partners#46 · 203,539 sh	203,539	$3.5M	0.10%	New
47	Truvestments Capital#47 · 185,157 sh	185,157	$3.2M	0.47%	+1.4%
48	Parkwood#48 · 184,819 sh	184,819	$3.2M	0.23%	0.0%
49	Texas Capital Bank Wealth Management Services#49 · 175,700 sh	175,700	$3.0M	0.16%	+5.4%
50	GREAT WEST LIFE ASSURANCE#50 · 175,800 sh	175,800	$3.0M	<0.01%	+18.5%
51	Naviter Wealth#51 · 151,189 sh	151,189	$2.6M	0.24%	-5.6%
52	Universal- Beteiligungs- und Servicegesellschaft mbH#52 · 150,572 sh	150,572	$2.6M	<0.01%	0.0%
53	Clayton Partners#53 · 150,280 sh	150,280	$2.6M	1.70%	-5.8%
54	LAZARD ASSET MANAGEMENT#54 · 149,679 sh	149,679	$2.6M	<0.01%	-2.1%
55	Waterloo Capital, L.P.#55 · 144,406 sh	144,406	$2.5M	0.14%	+2.5%
56	Atom Investors#56 · 144,339 sh	144,339	$2.5M	0.22%	-10.9%
57	RIVERBRIDGE PARTNERS#57 · 143,587 sh	143,587	$2.5M	0.07%	-0.1%
58	IHT Wealth Management#58 · 142,870 sh	142,870	$2.5M	0.05%	+21.0%
59	DENALI ADVISORS#59 · 139,187 sh	139,187	$2.4M	0.24%	-3.9%
60	Russell Investments Group, Ltd.#60 · 138,765 sh	138,765	$2.4M	<0.01%	+2.9%
61	BENJAMIN EDWARDS#61 · 138,093 sh	138,093	$2.4M	0.02%	-20.4%
62	Argent#62 · 135,564 sh	135,564	$2.3M	0.07%	+4.4%
63	STATE STREET#63 · 135,070 sh	135,070	$2.3M	<0.01%	+17.8%
64	Ignite Planners#64 · 128,218 sh	128,218	$2.2M	—	+14.6%
65	Wealthstar Advisors#65 · 125,488 sh	125,488	$2.2M	—	-3.1%
66	Plan Group Financial#66 · 120,324 sh	120,324	$2.1M	—	+33.1%
67	COMMONWEALTH EQUITY SERVICES#67 · 119,268 sh	119,268	$2.0M	<0.01%	-7.4%
68	DELPHI FINANCIAL GROUP#68 · 116,141 sh	116,141	$2.0M	0.99%	0.0%
69	TWO SIGMA INVESTMENTS#69 · 112,859 sh	112,859	$1.9M	<0.01%	-72.7%
70	AMERIPRISE FINANCIAL#70 · 106,445 sh	106,445	$1.8M	<0.01%	-13.0%
71	Ilex Capital Partners (UK) LLP#71 · 105,198 sh	105,198	$1.8M	0.04%	New
72	Lifetime Wealth Management P.C.#72 · 101,444 sh	101,444	$1.7M	1.02%	+4.1%
73	ENVESTNET ASSET MANAGEMENT#73 · 101,008 sh	101,008	$1.7M	<0.01%	-84.2%
74	BNP PARIBAS FINANCIAL MARKETS#74 · 100,911 sh	100,911	$1.7M	<0.01%	+4.5%
75	AE Wealth Management#75 · 98,204 sh	98,204	$1.7M	<0.01%	+45.5%
76	Legacy Capital Wealth Partners#76 · 90,379 sh	90,379	$1.6M	—	+20.8%
77	Lido Advisors#77 · 87,574 sh	87,574	$1.5M	<0.01%	+67.9%
78	ROYAL BANK OF CANADA#78 · 83,811 sh	83,811	$1.4M	<0.01%	-30.7%
79	HRT FINANCIAL#79 · 70,164 sh	70,164	$1.2M	<0.01%	New
80	INDEPENDENT FINANCIAL GROUP#80 · 69,176 sh	69,176	$1.2M	—	+14.2%
81	Cetera Investment Advisers#81 · 68,660 sh	68,660	$1.2M	<0.01%	-88.5%
82	D. E. Shaw#82 · 68,649 sh	68,649	$1.2M	<0.01%	-63.0%
83	OSAIC#83 · 54,757 sh	54,757	$940.2K	<0.01%	+22.8%
84	Savvy Advisors#84 · 54,584 sh	54,584	$937.2K	0.02%	+10.6%
85	DEARBORN PARTNERS#85 · 50,508 sh	50,508	$928.3K	0.05%	0.0%
86	Toroso Investments#86 · 53,219 sh	53,219	$913.8K	<0.01%	0.0%
87	TRED AVON FAMILY WEALTH#87 · 51,761 sh	51,761	$888.7K	—	-7.2%
88	Main Street Financial Solutions#88 · 51,308 sh	51,308	$881.0K	0.06%	+99.2%
89	BROWN ADVISORY#89 · 46,502 sh	46,502	$798.4K	<0.01%	-4.0%
90	Ehrenkranz Partners L.P.#90 · 43,015 sh	43,015	$738.6K	0.43%	+14.8%
91	Diversify Advisory Services#91 · 42,458 sh	42,458	$727.3K	—	+10.8%
92	DIVERSIFY WEALTH MANAGEMENT#92 · 42,458 sh	42,458	$727.3K	—	+10.2%
93	Whipplewood Advisors#93 · 40,558 sh	40,558	$696.4K	—	+48.9%
94	PARK CIRCLE#94 · 40,145 sh	40,145	$689.7K	0.59%	0.0%
95	Canton Hathaway#95 · 39,865 sh	39,865	$684.5K	—	-10.9%
96	Corient Private Wealth#96 · 39,797 sh	39,797	$683.3K	<0.01%	-11.9%
97	Rockefeller Capital Management L.P.#97 · 39,294 sh	39,294	$674.7K	<0.01%	-25.6%
98	NORTHERN#98 · 36,587 sh	36,587	$628.2K	<0.01%	-1.3%
99	Essex Financial Services#99 · 36,232 sh	36,232	$622.1K	0.03%	-4.6%
100	Hennion & Walsh Asset Management#100 · 36,216 sh	36,216	$621.8K	—	+161.3%

Funds that sold out of TSLX in Q2 2026 (40)

Held TSLX at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held TSLX in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
PANORAMIC INVESTMENT ADVISORS611,047 sh	611,047	$11.2M
Columbus Macro549,170 sh	549,170	$10.1M
MANUFACTURERS LIFE INSURANCE COMPANY, THE246,378 sh	246,378	$4.5M
FIRST NATIONAL137,667 sh	137,667	$2.5M
XTX Topco Ltd115,291 sh	115,291	$2.1M
Lansforsakringar Fondforvaltning AB (publ)84,040 sh	84,040	$1.5M
IEQ CAPITAL60,723 sh	60,723	$1.1M
Schonfeld Strategic Advisors47,508 sh	47,508	$873.2K
MILLENNIUM MANAGEMENT45,828 sh	45,828	$842.3K
ExodusPoint Capital Management41,995 sh	41,995	$771.9K
EVOKE WEALTH39,858 sh	39,858	$732.6K
Brevan Howard Capital Management37,598 sh	37,598	$691.1K
Ocean Park Asset Management32,736 sh	32,736	$600.8K
Barnett & Company27,850 sh	27,850	$511.9K
JANE STREET GROUP24,658 sh	24,658	$453.2K
KLEIN PAVLIS & PEASLEY FINANCIAL24,325 sh	24,325	$447.1K
London & Capital Asset Management Ltd23,130 sh	23,130	$425.4K
CAPSTONE INVESTMENT ADVISORS22,068 sh	22,068	$405.6K
Cornerstone Investment Partners20,884 sh	20,884	$383.8K
SILVER OAK SECURITIES20,521 sh	20,521	$377.2K
MQS Management16,059 sh	16,059	$295.2K
KAVAR CAPITAL PARTNERS GROUP15,632 sh	15,632	$287.3K
CALTON & ASSOCIATES13,193 sh	13,193	$242.5K
Prospera Financial Services12,027 sh	12,027	$221.1K
Investor's Fiduciary Advisor Network10,898 sh	10,898	$200.0K
Private Advisor Group10,728 sh	10,728	$197.2K
Worth Asset Management10,581 sh	10,581	$194.5K
PNC FINANCIAL SERVICES GROUP7,341 sh	7,341	$134.9K
Tower Research Capital (TRC)7,217 sh	7,217	$132.6K
QUADRANT CAPITAL GROUP5,546 sh	5,546	$99.9K
Annis Gardner Whiting Capital Advisors5,235 sh	5,235	$96.2K
ATLAS CAPITAL ADVISORS5,115 sh	5,115	$94.0K
KELLEHER FINANCIAL ADVISORS80,000 sh	80,000	$79.5K
Titiun Yejiel4,000 sh	4,000	$73.5K
Advisory Services Network2,926 sh	2,926	$53.8K
Innovative Asset Advisors Group1,700 sh	1,700	$31.2K
BASSO CAPITAL MANAGEMENT, L.P.1,000 sh	1,000	$18.4K
Quantbot Technologies129 sh	129	$2.4K
GAMMA Investing37 sh	37	$680.00
PMV Capital Advisers8 sh	8	$147.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.