Sixth Street Specialty Lending (TSLX) Proxy filing summary

Executive summary

• Amendment corrects share ownership figures for certain directors as of March 31, 2026, with no change to total group holdings.

• Joshua Easterly will retire from the board effective May 21, 2026, with no disagreements cited.

• Proxy materials, including this amendment, are available online and distributed to shareholders starting May 15, 2026.

Voting matters and shareholder proposals

• Joshua Easterly will not stand for re-election at the annual meeting on May 21, 2026.

Board of directors and corporate governance

• List of current directors, nominees, and executive officers provided, with updated beneficial ownership details.

• Several directors and officers have pledged shares as collateral for lines of credit with unaffiliated financial institutions.