X0508 4 2025-08-14 0001838359 Rigetti Computing, Inc. RGTI 0001339297 Iannotti Thomas J C/O RIGETTI COMPUTING, INC. 775 HEINZ AVENUE BERKELEY CA 94710 1 0 0 0 1 Common Stock 2025-08-14 4 M 0 100000 1.17 A 114902 D Common Stock 2025-08-14 4 S 0 100000 16.6987 D 14902 D Stock Option (Right to Buy) 1.17 2025-08-14 4 M 0 100000 0 D 2033-11-14 Common Stock 720000 620000 D This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 15, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.58 to $16.76, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. 1/3 of this option vested and became exercisable on November 15, 2024, with the remainder vesting in two annual equal installments thereafter, subject to the Reporting Person's continuous service with the Issuer though each vesting date. /s/ Jeffrey Bertelsen, Attorney-in-Fact 2025-08-15