Rigetti Computing, Inc.

Rigetti Computing, Inc. (Nasdaq: RGTI) filed a Form DEFA14A — additional definitive proxy soliciting materials — with the SEC on April 24, 2026, under accession number 0001104659-26-048566. Rigetti is a quantum computing company that entered the public markets in March 2022 through a merger with Supernova Partners Acquisition Company II, a blank-check vehicle sponsored by Supernova Partners. The DEFA14A supplements previously distributed definitive proxy materials ahead of a pending shareholder vote. Currently listed on Nasdaq, Rigetti designs and manufactures superconducting quantum processors and delivers cloud-based quantum computing services to enterprise and research clients. Sign up at SpacDesk for complete filing histories, sponsor profiles, and real-time analytics on Rigetti and the full SPAC universe.