Sabre Appoints Damian McKay to Board of Directors as a Representative of Constellation SOUTHLAKE, Texas and TORONTO, March 5, 2026 /PRNewswire/ -- Sabre Corporation (NASDAQ: SABR) ("Sabre" or the "Company"), a leading global travel technology company, and Constellation Software Inc. (TSX: CSU) ("Constellation"), a global, diversified technology provider that manages and builds vertical market software businesses and a beneficial owner of approximately 12.7% of Sabre's outstanding shares, today announced that following constructive discussions, the companies have entered into a strategic governance agreement. In connection with the agreement, Sabre will appoint Damian McKay, Chief Executive Officer of Vela Software Group, an operating group division of Constellation, to its Board of Directors.