$TSLX

$17.21 +$0.28 (1.65%) Close

$TSLX Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 95.3M shares outstanding

Who owns TSLX?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 205.9%

Exor N.V. 195.0% · Orbimed Advisors LLC 6.0%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

+1 vs last qtr

Net shares bought

+4.0M

by institutions in Q2 2026

New / sold out

3 / 2

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Exor N.V. +3.4M
Gagnon Securities LLC NEW +765.2K

Biggest sellers in Q2 2026

Orbimed Advisors LLC −530.7K
Strategic Investment Solutions, Inc. /IL SOLD OUT −127

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Sixth Street Specialty Lending, Inc. in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2020–FY2025

+40.0%

+6.96% a year

Each share's claim on the business

−28.6%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$9.1M vs —

over 6 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years3% 3–5 years96% 1–3 years0% Under 1 year1%

Quarterly turnover

1.3%

of institutional shares changed hands

Top 10 managers, median time held

1 quarter

Super Investors

Investment managers reporting TSLX on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
EN Exor N.V.	185.9M	195.01%	+3.4M (+1.9%)	2023	92.6%
Shares held by quarter Peak holding185.9M (Q2'26) Change over 8 quarters+21.4M Share of the company195.010% Exor N.V.'s full portfolio →
OA Orbimed Advisors LLC	5.7M	5.96%	−530.7K (−8.5%)	≤2021	0.6%
Shares held by quarter Peak holding12.0M (Q3'24) Change over 8 quarters−6.4M Share of the company5.960% Orbimed Advisors LLC's full portfolio →

Exor N.V.

185.9M

% of company

195.01%

Change vs last qtr

+3.4M (+1.9%)

Held since

2023

Orbimed Advisors LLC

5.7M

% of company

5.96%

Change vs last qtr

−530.7K (−8.5%)

Held since

≤2021

6 more super investors behind a free account

See every manager holding Sixth Street Specialty Lending, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting TSLX on Form N-PORT; together they hold 0.0% of the company

No fund reports holding TSLX yet.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
WA Waxman Alan Insider	3.4M	3.57%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company3.570% Waxman Alan's insider activity →
PS Pluss Steven Insider	51.5K	0.05%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.050% Pluss Steven's insider activity →

Waxman Alan

Insider

3.4M

% of company

3.57%

Change vs last qtr

—

Held since

—

Pluss Steven

Insider

51.5K

% of company

0.05%

Change vs last qtr

—

Held since

—

7 more holders behind a free account

See every insider and 5%+ holder of Sixth Street Specialty Lending, Inc..

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