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 the total held by all directors and officers as a group.

• The amendment does not update any other disclosures or reflect events after the original proxy statement date.

• Updated proxy materials are available online and distributed to shareholders starting May 15, 2026.

Board of directors and corporate governance

• Joshua Easterly will retire from the board effective May 21, 2026, and will not stand for re-election; his decision was not due to any disagreement.

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

Related party transactions

• Sixth Street Specialty Lending Advisers, LLC, managed by a related entity, holds 2,714,226 shares; Alan Waxman, CEO, disclaims beneficial ownership except for his pecuniary interest.