Opendoor Technologies (Nasdaq: OPEN), the residential real estate technology company that went public in December 2020 through a SPAC merger with Social Capital Hedosophia Holdings Corp. II, sponsored by Social Capital Hedosophia, filed a Form DEFA14A with the SEC on June 2, 2026, under accession number 0001140361-26-023784. The DEFA14A designation indicates additional definitive proxy soliciting materials, supplementing previously filed proxy documents in advance of a shareholder meeting. Opendoor operates as an iBuyer platform in the residential real estate sector and currently trades on Nasdaq under the ticker OPEN. Sign up at SpacDesk for complete filing history, SPAC deal data, and ongoing coverage of post-merger companies including Opendoor.