Exhibit 99.1 Ouster Announces Record Revenue and Margin for First Quarter 2024 Record revenue of $26 million, up 51% year over year GAAP gross margin of 29% and record non-GAAP gross margin of 36% SAN FRANCISCO, CA – May 9, 2024 at 4:15 PM ET – Ouster, Inc. (NYSE: OUST) (“Ouster” or the “Company”), a leading global provider of high- performance lidar sensors and software solutions for the automotive, industrial, robotics, and smart infrastructure industries, announced today financial results for the three m ...