Form 3 Filing by Honeywell International Inc. and Honeywell Holdings International Inc.

This filing details the ownership of Quantinuum Inc. (QNT) by Honeywell International Inc. and its subsidiary Honeywell Holdings International Inc. The ownership includes 28,630,074 common units and a corresponding number of Class B shares held directly by Honeywell Holdings International Inc., and 95,998,655 common units and corresponding Class B shares held directly by Honeywell International Inc. These common units are redeemable or exchangeable for Class A common stock or cash, with no expiration date. Upon redemption or exchange, an equal number of Class B shares will be cancelled. Honeywell International Inc. is identified as a 10% owner. The filing indicates indirect ownership by Honeywell International Inc. through its subsidiary.