Selling your company for $32 billion tends to free up the calendar. Assaf Rappaport, the co-founder and CEO of cloud security firm Wiz, has used that newfound bandwidth to become one of the most aggressive angel investors in cybersecurity and AI, assembling a portfolio of 19 companies at a pace that would make most venture firms jealous.
Since closing the blockbuster sale of Wiz to Google Cloud, Rappaport has completed at least 10 investments in just the first six months of 2026. The deals span seed rounds to Series C, with a clear thesis: AI applications that make enterprise security smarter, faster, and harder to outmaneuver.
A portfolio taking shape at startup speed
Rappaport’s most eye-catching move came on June 23, 2026, when he participated in a $98 million Series C round for Engram, a company building what it calls an AI “memory layer” for enterprises. Sequoia Capital and Kleiner Perkins co-led the round.
Engram’s technology tackles adaptive memory management for generative AI systems, helping large language models and other AI tools remember context across sessions and workflows.
