Rubrik was founded in 2013 and by 2021 was valued at $4 billion. : Two weeks after the successful IPOs of Astera Labs and Reddit, another highly anticipated name is entering the public market: The cloud data and cybersecurity company Rubrik, which just filed its S-1 with the SEC to start trading on the New York Stock Exchange under the ticker “RBRK.” Rubrik was founded in 2013 (first as ScaleData Inc., changing its name the following year) with a focus on protecting data stored in the cloud. By 2021, the company had a $4 billion valuation.