STRS Ohio discloses 4.83M-share stake in Sixth Street Specialty Lending (TSLX)

Rhea-AI Filing Summary

Sixth Street Specialty Lending, Inc. ownership disclosure: State Teachers Retirement System of Ohio reports beneficial ownership of 4,832,482 shares of common stock, representing 5.1% of the class. The filer reports sole voting and sole dispositive power over the same 4,832,482 shares. The filing is signed by Aaron DiCenzo on 07/08/2026.

Insights

Institutional Ownership Analyst

Large public pension reports a 5.1% stake with sole voting control.

The State Teachers Retirement System of Ohio discloses beneficial ownership of 4,832,482 shares, equal to 5.1% of common stock, and states sole voting and dispositive power over those shares. This indicates a measurable institutional position disclosed under Schedule 13G.

Stakeholder implications hinge on the holder's voting intent; future filings may show changes in percentage or a move to Schedule 13D if activist intent emerges. Timing: signature dated 07/08/2026.

Key Figures

Beneficial ownership: 4,832,482 shares Percent of class: 5.1% Sole voting/dispositive power: 4,832,482 shares

3 metrics

Beneficial ownership 4,832,482 shares Amount beneficially owned as reported

Percent of class 5.1% Percent of common stock reported

Sole voting/dispositive power 4,832,482 shares Sole power to vote and to dispose as reported

Key Terms

Schedule 13G, beneficially owned, sole dispositive power

3 terms

Schedule 13G regulatory

"Item 1. (a) Name of issuer: Sixth Street Specialty Lending, Inc."

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

beneficially owned financial

"Item 4. Ownership (a) Amount beneficially owned: 4,832,482"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole dispositive power financial

"Item 4. (iii) Sole power to dispose or to direct the disposition of: 4,832,482"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 07/08/2026 - 11:06 AM Accepted by SEC EDGAR 07/08/2026 - 11:05 AM Learn about SEC filing dates

FAQ

What stake does STRS Ohio report in Sixth Street Specialty Lending (TSLX)?

STRS Ohio reports beneficial ownership of 4,832,482 shares, equal to 5.1% of the issuer's common stock, with sole voting and dispositive power over those shares.

Does the Schedule 13G filing indicate shared voting control for STRS Ohio?

No. The filing states STRS Ohio has sole voting power over 4,832,482 shares and 0 shared voting power, per the disclosed ownership table.

When was the ownership filing signed for the disclosed position?

The form is signed by Aaron DiCenzo, Deputy Executive Director, Investments, with signature date 07/08/2026 as shown on the filing.

Is the Schedule 13G indicative of activist intentions by STRS Ohio?

The filing reports passive beneficial ownership under Schedule 13G; it does not state activist intent. Any change to active intent would typically trigger a different disclosure form.

How much dispositive power does STRS Ohio report over TSLX shares?

STRS Ohio reports sole dispositive power over 4,832,482 shares and 0 shared dispositive power in the ownership section of the filing.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Sixth Street Specialty Lending, Inc.

(Name of Issuer)

common stock

(Title of Class of Securities)

000000000

(CUSIP Number)

05/06/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 000000000

1

Names of Reporting Persons

STRS OHIO

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

OHIO

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 4,832,482.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 4,832,482.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,832,482.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.1 %

12

Type of Reporting Person (See Instructions)

EP

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Sixth Street Specialty Lending, Inc.
(b)	Address of issuer's principal executive offices: 2100 MCKINNEY AVENUE, SUITE 1500, DALLAS, TEXAS, 75201
Item 2.
(a)	Name of person filing: State Teachers Retirement System of Ohio (STRS Ohio)
(b)	Address or principal business office or, if none, residence: 275 East Broad Street Columbus, OH 43215
(c)	Citizenship: State of Ohio, USA. Governmental Employee Benefit Plan
(d)	Title of class of securities: common stock
(e)	CUSIP Number(s): 000000000
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 4,832,482
(b)	Percent of class: 5.1 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 4,832,482
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 4,832,482
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

STRS OHIO

Signature:	Aaron DiCenzo
Name/Title:	Deputy Executive Director, Investments
Date:	07/08/2026