Sixth Street Specialty Lending, Inc. (TSLX)
NYSE: TSLX · Dallas, TX · filing with the SEC since 2011
Who owns Sixth Street Specialty Lending, Inc.
As filed with the SECHolders of 5% or more
1
Strs Ohio holds 6.3% of common stock, as its SCHEDULE 13G/A filed Aug 14, 2026 says.
Directors and officers
9
report now, of 21 people on the record since 2011. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 1 named at left.
Holders of 5% or moreshare of the class, as filed
Strs Ohio
SCHEDULE 13G/A · filed Aug 14, 2026 · common stock · 5.1% in Jul 8, 2026
What TSLX reports owning in othersstakes of 5% or more, and other ties
4 subsidiaries in 2 countries, from the list filed with the 10-K filed Feb 12, 2026.
Insider tradesForm 4
0sales
11purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$11.2Mbought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window8 of 21 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Waxman Alan | Vice President | 0 | $0 | 0 | 4 | $10.0M |
| Stanley Robert J. | CEO | 0 | $0 | 0 | 1 | $200,000 |
| Bruck Ross Anthony | Vice President | 0 | $0 | 0 | 1 | $100,000 |
| Stiepleman David | Vice President | 0 | $0 | 0 | 1 | $400,000 |
| Peck Joshua | Vice President | 0 | $0 | 0 | 1 | $0 |
| Pluss Steven | Vice President | 0 | $0 | 0 | 1 | $300,000 |
| Graf Michael | Title: Vice President / Principal Accounting Officer / Deputy Chief Financial Officer (2) Anton Brett is signing on behalf of Michael Graf p | 0 | $0 | 0 | 1 | $0 |
| Covington P Emery | director | 0 | $0 | 0 | 1 | $100,000 |