Rubrik, Inc. (RBRK) Stock
7 of the hedge funds AlphaScala tracks reported RBRK in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Renaissance Technologies's at $40.88M. Company insiders reported 0 open-market buys and 71 sales on SEC Form 4 in the 90 days to Nov 3, 2026.
Which hedge funds own RBRK?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| Renaissance Technologies Jim Simons (founder) | 509K | $40.88M | +35% |
| ARK Invest Cathie Wood | 365K | $29.34M | -8% |
| Millennium Management Israel Englander | 131K | $10.52M | -67% |
| Point72 Steve Cohen | 53K | $4.25M | +156% |
| Blackstone | 43K | $3.44M | +239% |
| Marshall Wace | 42K | $3.37M | -88% |
| D.E. Shaw David Shaw | 33K | $2.69M | -1% |
13F holdings as of Jun 30, 2026
Explore all tracked funds →Are Rubrik, Inc. insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Nov 2, 26 | Thompson John Wendell | Director | SELL | 700 | $80K |
| Nov 2, 26 | Thompson John Wendell | Director | SELL | 500 | $58K |
| Nov 2, 26 | Thompson John Wendell | Director | SELL | 500 | $59K |
| Nov 2, 26 | Thompson John Wendell | Director | SELL | 300 | $36K |
| Nov 2, 26 | Thompson John Wendell | Director | SELL | 400 | $48K |
| Nov 2, 26 | Thompson John Wendell | Director | SELL | 100 | $12K |
| Nov 2, 26 | Thompson John Wendell | Director | SELL | 2.9K | $335K |
| Nov 2, 26 | Thompson John Wendell | Director | SELL | 875 | $101K |
| Nov 2, 26 | Thompson John Wendell | Director | SELL | 1.6K | $186K |
| Nov 2, 26 | Thompson John Wendell | Director | SELL | 1.1K | $129K |
SEC Form 4 filings as of Nov 3, 2026
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Powered by TradingViewWhat does Rubrik, Inc. do?
Rubrik, Inc. is a cloud data management and data security company that provides Zero Trust Data Security solutions to protect organizations against cyberattacks, malicious insiders, and operational disruptions. Its flagship offering, Rubrik Security Cloud, is a unified platform powered by machine learning that secures data across enterprise, cloud, and SaaS environments, enabling complete cyber resilience through cyber posture management and rapid cyber recovery. Key features include immutable backups, anomaly detection, threat hunting, sensitive data discovery, and a preemptive recovery engine that identifies clean recovery points before attacks occur. The platform supports fast recovery times, identity resilience for systems like Active Directory, Entra ID, and Okta, and tools like Rubrik Agent Cloud for monitoring, governing, and remediating AI agents. Rubrik serves diverse sectors including healthcare, government, finance, and manufacturing, helping thousands of organizations maintain data availability, mitigate risks, and ensure business continuity. Founded in 2014 and headquartered in Palo Alto, California, Rubrik operates globally with offices across North America, Europe, Middle East, and Asia Pacific.