Sixth Street Specialty Lending, Inc.

TSLX

Exchange: NYSE
SEC CIK: 0001508655

SEC filings (opens in a new tab)

No open-market purchases or sales by Sixth Street Specialty Lending, Inc. insiders were filed in the last 90 days; 242 institutions reported holding it in 13F filings for Q2 2026, worth $896.5M in total; no superinvestor holds it.

Q4 2024 vs. Q3 2024

How the institutions holding Sixth Street Specialty Lending, Inc. changed between Q3 2024 and Q4 2024.

All holders in Q4 2024 All holders in Q3 2024

13F holders of TSLX: Q3 2024 compared with Q4 2024
Measure	Q3 2024	Of which not filed for Q4 2024	Q4 2024	Change
Holders	202	3	223	+24
Shares	44.1M	776.9K	45.2M	+1.94M (+4.5%)
Value	$904.9M	$15.9M	$963.5M	+$74.5M (+8.4%)

3 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (40)

Institutions that held Sixth Street Specialty Lending, Inc. at the end of Q4 2024 but not at the end of Q3 2024.

Institutions new to TSLX in Q4 2024
Institution	Shares	Value	% of portfolio
Raymond James Financial Inc	821,040	$17.5M	0.01%
Columbus Macro, LLC	360,053	$7.67M	1.07%
Universal- Beteiligungs- und Servicegesellschaft mbH	195,128	$4.16M	0.01%
Parkwood LLC	184,819	$3.94M	0.48%
Wealthstar Advisors, LLC	130,604	$2.78M	1.21%
Gilman Hill Asset Management, LLC	92,656	$1.97M	0.34%
Round Rock Advisors, LLC	84,014	$1.79M	0.37%
BNP Paribas Arbitrage, SA	48,610	$1.04M	0.00%
Bryn Mawr Trust Co	31,070	$661.8K	0.01%
Sage Investment Counsel LLC	26,233	$558.8K	0.73%
Stratos Wealth Advisors, LLC	25,567	$544.6K	0.03%
Brevan Howard Capital Management LP	25,218	$537.1K	0.01%
Country Club Bank	22,851	$486.7K	0.03%
Savvy Advisors, Inc.	22,812	$485.9K	0.06%
Plan Group Financial, LLC	19,561	$416.6K	0.22%
Chicago Partners Investment Group LLC	19,399	$408.9K	0.01%
XTX Topco Ltd	18,394	$391.8K	0.03%
Union Bancaire Privee, UBP SA	18,384	$391.6K	0.01%
Essex Financial Services, Inc.	18,187	$387.4K	0.03%
Balyasny Asset Management LLC	15,680	$334.0K	0.00%
Canton Hathaway, LLC	15,450	$329.0K	0.08%
Principal Street Partners, LLC	14,355	$305.8K	0.06%
Mallini Complete Financial Planning LLC	12,470	$265.5K	0.25%
Campbell & CO Investment Adviser LLC	12,356	$263.2K	0.02%
Integrated Wealth Concepts LLC	11,942	$254.4K	0.00%
Centiva Capital, LP	11,033	$235.0K	0.01%
Robertson Stephens Wealth Management, LLC	9,700	$206.6K	0.01%
Atlas Capital Advisors LLC	5,115	$108.9K	0.01%
MAI Capital Management	2,324	$49.5K	0.00%
Trust Co of Vermont	1,834	$39.1K	0.00%
Ameriflex Group, Inc.	1,205	$27.0K	0.01%
Northwestern Mutual Wealth Management Co	1,200	$25.6K	0.00%
Synergy Financial Management, LLC	594	$12.2K	0.00%
Transce3nd, LLC	485	$10.3K	0.00%
WealthCollab, LLC	338	$7.20K	0.00%
Russell Investments Group, Ltd.	240	$5.12K	0.00%
Thurston, Springer, Miller, Herd & Titak, Inc.	200	$4.26K	0.00%
Birchbrook, Inc.	65	$1.39K	0.00%
Hager Investment Management Services, LLC	53	$1.12K	0.00%
SOA Wealth Advisors, LLC.	43	$913	0.00%

Sold out (16)

Institutions that held Sixth Street Specialty Lending, Inc. at the end of Q3 2024 and filed for Q4 2024 without it.

Institutions that sold out of TSLX in Q4 2024
Institution	Shares, Q3 2024	Value, Q3 2024
Cubist Systematic Strategies, LLC	57,399	$1.18M
Schonfeld Strategic Advisors LLC	54,800	$1.13M
Connor, Clark & Lunn Investment Management Ltd.	51,184	$1.05M
Total Clarity Wealth Management, Inc.	50,448	$1.04M
Dynamic Technology Lab Private Ltd	48,094	$987.0K
Jump Financial, LLC	42,958	$881.9K
MQS Management LLC	36,472	$748.8K
Y-Intercept (Hong Kong) Ltd	34,502	$708.3K
Quantbot Technologies LP	26,774	$549.7K
Mirae Asset Global Investments Co., Ltd.	15,607	$322.8K
Engineers Gate Manager LP	11,626	$238.7K
CAPROCK Group, Inc.	11,207	$230.1K
Cliffwater LLC	8,501	$174.5K
Proequities, Inc.	1,000	$20.5K
Hobbs Group Advisors, LLC	152	$3.12K
Macroview Investment Management LLC	127	$2.61K

Not filed for Q4 2024 yet (3)

Institutions that held Sixth Street Specialty Lending, Inc. at the end of Q3 2024 and haven't filed a 13F for Q4 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding TSLX in Q3 2024 that haven't filed for Q4 2024
Institution	Shares, Q3 2024	Value, Q3 2024
Raymond James Financial Services Advisors, Inc.	629,629	$12.9M
Raymond James & Associates	147,275	$3.02M
Naples Money Management LLC	1	$26