Sixth Street Specialty Lending (TSLX) VP makes open-market share purchase

Rhea-AI Filing Summary

Sixth Street Specialty Lending, Inc. Vice President Ross Anthony Bruck reported an open-market purchase of 8,000 shares of common stock at $17.76 per share. Following this buy, his directly held position in the company increased to 18,250 common shares.

Insider Trade Summary

Net Buyer: 8,000 shares ($142,080)

Net Buy 1 txn

Insider Bruck Ross Anthony

Role Vice President

Bought 8,000 shs ($142K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	8,000	$17.76	$142K

Holdings After Transaction: Common Stock — 18,250 shares (Direct, null)

Footnotes (1)

Key Figures

Shares purchased: 8,000 shares Purchase price: $17.76 per share Shares owned after transaction: 18,250 shares +1 more

4 metrics

Shares purchased 8,000 shares Open-market purchase of common stock

Purchase price $17.76 per share Price paid for the 8,000 common shares

Shares owned after transaction 18,250 shares Direct holdings following the purchase

Net share change 8,000 shares Net-buy direction in this Form 4

Key Terms

Form 4, open-market purchase, Common Stock, transaction code "P"

4 terms

Form 4 regulatory

"The insider reported this open-market purchase on a Form 4."

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

open-market purchase financial

"The transaction is classified as an open-market purchase of common stock."

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Common Stock financial

"The insider acquired 8,000 shares of Common Stock at $17.76 per share."

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

transaction code "P" regulatory

"Transaction code "P" designates a purchase in open market or private transaction."

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Bruck Ross Anthony

(Last) (First) (Middle)

C/O SIXTH STREET SPECIALTY LENDING, INC.

2100 MCKINNEY AVENUE, SUITE 1500

(Street)

DALLAS TEXAS 75201

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Sixth Street Specialty Lending, Inc. [ TSLX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Vice President

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/11/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/11/2026		P		8,000	A	$17.76	18,250	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

(1) Anton Brett is signing on behalf of Ross Bruck pursuant to a Power of Attorney dated February 20, 2026.

	/s/ Anton Brett, attorney-in fact (1)	05/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did TSLX Vice President Ross Anthony Bruck report?

Ross Anthony Bruck reported an open-market purchase of 8,000 TSLX common shares. The transaction occurred at a price of $17.76 per share and increased his directly held stake in Sixth Street Specialty Lending, Inc. to a total of 18,250 common shares after the purchase.

At what price did the TSLX insider buy shares in this Form 4 filing?

The TSLX insider purchased shares at $17.76 per share in an open-market transaction. This price applies to all 8,000 common shares bought on the reported date and reflects the consideration paid for this specific trade disclosed in the Form 4 filing.

How many Sixth Street Specialty Lending (TSLX) shares does the insider hold after the transaction?

After the reported transaction, the insider directly holds 18,250 TSLX common shares. This figure includes the newly purchased 8,000 shares and represents his total direct ownership position as reflected in this Form 4 filing following the open-market purchase.

Was the TSLX Form 4 transaction a purchase or a sale of shares?

The TSLX Form 4 transaction was a purchase of shares, not a sale. It is classified as an open-market purchase under transaction code “P,” indicating the insider bought 8,000 common shares rather than disposing of or selling any holdings in this report.

What does transaction code "P" mean in the TSLX insider Form 4?

Transaction code “P” on the TSLX Form 4 indicates a purchase in the open market or a private transaction. In this case, it confirms that the insider acquired 8,000 common shares, distinguishing the activity from sales, gifts, or option exercises.