Ouster, Inc., listed under the ticker CLA, filed a Form 424B3 prospectus with the SEC on May 8, 2026, related to its SPAC-originated capital structure. The company entered the public markets through a business combination with Colonnade Acquisition Corp., sponsored by Colonnade Acquisition Sponsor, LLC, in March 2021, following the SPAC's 2020 initial public offering. Colonnade targeted the technology sector and ultimately combined with Ouster, a developer of three-dimensional lidar sensors used in autonomous vehicles, robotics, and industrial applications. The 424B3 represents ongoing prospectus activity associated with the original de-SPAC transaction. Sign up on SpacDesk for full filing history, deal data, and real-time analytics across the SPAC market.