Supernova Partners Acquisition Company III, Ltd. announced that on March 22, 2021, in connection with the IPO, Jan Singer, Ken Fox, Jim Lanzone, Gregg Renfrew and Rajeev Singh (collectively, the New Directors) were appointed to the board of directors of the Company . Effective March 22, 2021, (i) each of Alexander Klabin, Jim Lanzone and Rajeev Singh were appointed to the audit committee, (ii) each of Spencer Rascoff, Ken Fox and Gregg Renfrew was appointed to the compensation committee and (iii) each of Ken Fox, Spencer Rascoff and Gregg Renfrew were appointed to the nominating and corporate governance committee. Following the appointment of the New Directors, the Board is comprised of three classes. The term of office of the first class of directors, consisting of Jan Singer and Ken Fox, will expire at the Company's first annual general meeting. The term of office of the second class of directors, consisting of Gregg Renfrew, Jim Lanzone and Rajeev Singh, will expire at the second annual general meeting. The term of office of the third class of directors, consisting of Michael Clifton, Alexander Klabin, Spencer Rascoff and Robert Reid, will expire at the third annual general meeting.