Sabre Corporation Shares Up 26% After Board Approves Shareholder Rights Plan

Shares of Sabre Corporation (SABR) are up 26% in Monday morning trading after the company announced yesterday that its board of directors has approved the adoption of a limited-duration shareholder rights plan to protect the interests of Sabre and its shareholders. The Rights Plan is effective immediately and expires in one year. The Board, in consultation with its independent advisors, adopted the Rights Plan in response to the substantial accumulation of shares of Sabre's common stock by Constellation Software (CNSWF), the company stated. In deciding to adopt the Rights Plan, the board considered, among other things, that between April 2025 and November 2025, Constellation accumulated a 9.7% economic position in Sabre, comprising 4.7% beneficial ownership of common stock and a further 5% via derivative instruments, and privately informed Sabre of its ownership stake for the first time in early January, the company noted. "On February 26, 2026, despite the parties nearing the finish line on the agreement, Constellation abruptly and without explanation broke off several weeks of constructive negotiations and stated that its intentions 'would appear clear with the benefit of time;' Sabre made multiple attempts to reengage Constellation on February 26 and February 27, 2026, that remain unanswered, and on February 28, 2026, Constellation withdrew the formal nomination of its second candidate (not the candidate who the parties had been contemplating would join the Board in connection with the proposed strategic governance agreement) without providing any explanation or otherwise responding to Sabre's requests to reengage; and during the week of February 23 through February 27, 2026, the Company observed unusually high trading volume in its stock," Sabre added.