Schedule 13D Filing by Constellation Software Inc. et al. for Sabre Corp.

Constellation Software Inc., Constellation Canadian Holdings Inc., and Mark Miller (collectively, "Reporting Persons") have filed a Schedule 13D regarding their beneficial ownership of Sabre Corp. common stock. As of March 5, 2026, Constellation Holdings beneficially owns 50,157,523 shares, representing approximately 12.7% of Sabre Corp.'s outstanding stock. This ownership was acquired through open market purchases and settlement of certain swaps. The Reporting Persons entered into a strategic governance agreement with Sabre Corp. on March 5, 2026, which includes the appointment of a new director to Sabre Corp.'s board and customary standstill restrictions. The agreement also involves the acceleration of Sabre Corp.'s stockholder rights plan. The Reporting Persons intend to continue engaging with Sabre Corp.'s management and board regarding potential value enhancement strategies. They reserve the right to adjust their investment based on market conditions and other factors.