Announcements

Brian J. Wendling, CAO/PFO of Liberty Broadband Corp, filed a Form 4 on August 12, 2026, disclosing the vesting of restricted stock units and a related tax-withholding disposition of Series C Common Stock on August 10, 2026.

Martin Edward Patterson, President and CEO of Liberty Broadband Corp, filed a Form 4 on August 12, 2026, disclosing transactions in Series C Common Stock dated August 10, 2026, related to the vesting of restricted stock units and a tax-withholding sale.

Renee L. Wilm, Chief Legal/Admin Officer of Liberty Broadband Corp, filed a Form 4 on August 12, 2026, reporting the vesting of 2,850 restricted stock units and the withholding of 971 shares for tax purposes on August 10, 2026.

Deborah J. Kissire, a director of Celanese Corp (NYSE:CE), filed a statement of changes in beneficial ownership on August 12, 2026, disclosing the acquisition of phantom stock units tied to dividend equivalents under a company deferred compensation plan.

A statement of changes in beneficial ownership was filed on August 12, 2026, disclosing that Kim K.W. Rucker, a director of Celanese Corp (NYSE:CE), acquired phantom stock units as dividend equivalents under the company's deferred compensation plan.

A Form 4 filed with the SEC on August 12, 2026 discloses that Mark Christopher Murray, Senior Vice President of Acetyls at Celanese Corp, purchased 2,153 shares of common stock on August 11, 2026.

A statement of changes in beneficial ownership filed on August 12, 2026 disclosed that Evan Iverson, Senior Vice President and Chief Operating Officer of Frontdoor, Inc. (NASDAQ:FTDR), sold 18,190 shares of common stock on August 10, 2026.