Robert J. Stanley - Nov 18, 2025 Form 4 Insider Report for Sixth Street Specialty Lending, Inc. (TSLX)

Role: Co-CEO, Director
Signature: /s/ Anton Brett, on behalf of Robert J. Stanley (1)
Stock symbol: TSLX
Transactions as of: Nov 18, 2025
Transactions value $: $208,500
Form type: 4
Date filed: 11/20/2025, 04:30 PM
Previous filing: Nov 14, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Stanley Robert J.	Co-CEO, Director	C/O SIXTH STREET SPECIALTY LENDING, INC., 2100 MCKINNEY AVENUE, SUITE 1500, DALLAS	/s/ Anton Brett, on behalf of Robert J. Stanley (1)	2025-11-20	0001673990

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TSLX	Common Stock	Purchase	$209K	+10K	+67.08%	$20.85	24.9K	Nov 18, 2025	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Remarks:

(1) Anton Brett is signing on behalf of Robert J. Stanley pursuant to a Power of Attorney dated November 18, 2025, which is attached hereto as an exhibit. Exhibit List Exhibit 24- Power of Attorney