Rigetti SPAC Presentation Deck

Supernova Partners Acquisition Company II • Supernova Partners Acquisition Company II, Inc. ("Supernova"; NYSE:SNII) raised $345 million in March 2021 • Diverse management team with deep sector expertise and decades of operational, investment and acquisition experience • Supernova Partners Acquisition Company I raised $402.5 million in an IPO in October 2020 and has signed a definitive merger agreement with Offerpad, a digital real estate platform, and Supernova Partners Acquisition Company III raised $281 million in an IPO in March 2021 Spencer Rascoff CO-CHAIR ZILLOW GROUP hotwire Goldman Sachs Alexander Klabin CO-CHAIR ancient SENATOR Goldman Sachs 4 Robert Reid CEO Blackstone Morgan Stanley Michael Clifton CFO THE CARLYLE GROUP BANK OF AMERICA rigetti

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