Sixth Street Specialty Lending, Inc. (TSLX) Insider Ownership

Historic Insider Ownership Trends

As of June 18, 2026, the three largest insider holders of TSLX are Alan Waxman (Vice President, 545.00K shares), Steven Pluss (Vice President, 51.50K shares), David Stiepleman (Vice President, 25.73K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Richard A Higginbotham - 0 4,000 09 Mar, 2022
Judy S Slotkin - 18,726 0 07 Aug, 2024
Alan Waxman Vice President 0 545,000 11 Mar, 2026
David Stiepleman Vice President 25,735 0 04 Mar, 2026
Steven Pluss Vice President 51,500 0 03 Mar, 2026
Jennifer Gordon Vice President 2,500 0 26 May, 2022
Michael Graf - 7,205 0 02 Mar, 2026
Ian Simmonds Chief Financial Officer 4,996 0 09 Aug, 2022
Robert J. Stanley Co Ceo 24,907 0 20 Nov, 2025
Hurley Doddy - 15,241 0 15 Mar, 2023
Anton Brett Chief Compliance Officer 500 0 22 Aug, 2022
Joshua Peck Vice President 3,140 0 03 Mar, 2026
P Emery Covington - 15,000 0 10 Mar, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
09 Mar, 2026 Alan Waxman Common Stock A 200,000 $18.18 500,000 I P
09 Mar, 2026 Alan Waxman Common Stock A 200,000 $18.18 500,000 I P
10 Mar, 2026 Alan Waxman Common Stock A 45,000 $18.47 545,000 I P
10 Mar, 2026 Alan Waxman Common Stock A 45,000 $18.47 545,000 I P
06 Mar, 2026 P Emery Covington Common Stock A 7,500 $18.35 15,000 D P
05 Mar, 2026 Alan Waxman Common Stock A 100,000 $18.46 100,000 I P
05 Mar, 2026 Alan Waxman Common Stock A 100,000 $18.46 100,000 I P
06 Mar, 2026 Alan Waxman Common Stock A 200,000 $18.42 300,000 I P
06 Mar, 2026 Alan Waxman Common Stock A 200,000 $18.42 300,000 I P
02 Mar, 2026 David Stiepleman Common Stock A 20,200 $17.65 25,735 D P
02 Mar, 2026 Joshua Peck Common Stock A 2,840 $17.59 3,140 D P
27 Feb, 2026 Steven Pluss Common Stock A 15,000 $17.72 51,500 D P
26 Feb, 2026 Michael Graf Common Stock A 1,000 $18.26 7,205 D P
18 Nov, 2025 Robert J. Stanley Common Stock A 10,000 $20.85 24,907 D P
20 Nov, 2024 Michael Graf Common Stock A 1,000 $20.53 5,605 D P
07 Aug, 2024 Michael Graf Common Stock A 500 $20.45 4,505 D P
05 Aug, 2024 Judy S Slotkin Common Stock A 7,015 $19.90 18,726 D P
05 Aug, 2024 Judy S Slotkin Common Stock A 7,015 $19.90 18,726 D P
21 May, 2024 P Emery Covington Common Stock A 7,500 $21.50 7,500 D P
13 Mar, 2023 Hurley Doddy Common Stock A 2,900 $17.51 15,241 D P