144 0001827853 XXXXXXXX LIVE 0001838359 Rigetti Computing, Inc. 001-40140 775 HEINZ AVENUE BERKELEY CA 94710 (510) 210-5550 Clifton Michael S. Director Common Stock Piper Sandler & Co Inc

350 N 5th St Ste 1000 Minneapolis MN 55401

50000 834500.00 324165170 09/12/2025 Nasdaq Warrants Piper Sandler & Co Inc

350 N 5th St Ste 1000 Minneapolis MN 55401

28812 180651.24 324165170 09/12/2025 Nasdaq Common Stock 03/02/2022 Sponsor Promote Shares Issuer N 50000 03/02/2022 NA Warrants 03/02/2022 Sponsor Promote Warrants Issuer N 28812 03/02/2022 NA N Michael Clifton C/O Rigetti Computing Inc

775 Heinz Ave Berkeley CA 94710

Warrants 08/14/2025 21188 148316.00 Michael Clifton C/O Rigetti Computing Inc

775 Heinz Ave Berkeley CA 94710

Common Stock 07/17/2025 25000 425000.00 Michael Clifton C/O Rigetti Computing Inc

775 Heinz Ave Berkeley CA 94710

Common Stock 07/16/2025 25000 375000.00 Michael Clifton C/O Rigetti Computing Inc

775 Heinz Ave Berkeley CA 94710

Warrants 06/11/2025 25000 125000.00 Michael Clifton C/O Rigetti Computing Inc

775 Heinz Ave Berkeley CA 94710

Common Stock 06/10/2025 25000 300000.00 Michael Clifton C/O Rigetti Computing Inc

775 Heinz Ave Berkeley CA 94710

Common Stock 06/09/2025 50000 588000.00 Michael Clifton C/O Rigetti Computing Inc

775 Heinz Ave Berkeley CA 94710

Warrants 09/09/2025 25000 142145.00 Michael Clifton C/O Rigetti Computing Inc

775 Heinz Ave Berkeley CA 94710

Common Stock 09/09/2025 100000 1539340.00 09/12/2025 03/10/2025 Alex Johnson, a duly authorized representative of Piper Sandler & Co Corporate & Venture Services FA, as attorney-in-fact for Michael Clifton