Sixth Street Specialty Lending (TSLX) investor relations material

Executive summary

• A special meeting is called to seek shareholder approval for the company to issue common stock below its net asset value (NAV) per share, in one or more offerings, with a cap of 25% of outstanding shares per offering and subject to board approval.

• The board unanimously recommends voting in favor of the proposal, citing flexibility to access capital markets during periods of volatility and to pursue attractive investment opportunities.

• The authorization, if approved, will be effective for a twelve-month period following the meeting.

Voting matters and shareholder proposals

• The sole proposal is to authorize issuance of common stock below NAV, subject to board approval and a 25% cap per offering.

• Approval requires a majority as defined by the Investment Company Act of 1940, including a majority of non-affiliated shareholders.

• Stockholders may vote by internet, phone, or mail, and can attend and vote in person.

• Procedures for submitting proposals and nominations for the 2027 annual meeting are outlined, with deadlines and requirements specified.

Board of directors and corporate governance

• The board, including a majority of independent and non-interested directors, has approved and recommends the proposal.

• Joshua Easterly will retire from the board in May 2026, not due to any disagreement.

• Security ownership of directors and officers is disclosed, with some shares pledged as collateral for lines of credit.