Tenable Holdings, Inc. (TENB) Stock
6 of the hedge funds AlphaScala tracks reported TENB in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Millennium Management's at $35.88M. Company insiders reported 0 open-market buys and 6 sales on SEC Form 4 in the 90 days to Oct 21, 2026.
Which hedge funds own TENB?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| Millennium Management Israel Englander | 973K | $35.88M | +70% |
| Renaissance Technologies Jim Simons (founder) | 971K | $35.80M | -23% |
| Point72 Steve Cohen | 568K | $20.94M | +422% |
| Citadel Ken Griffin | 461K | $17.00M | -39% |
| D.E. Shaw David Shaw | 51K | $1.88M | -82% |
| Marshall Wace | 11K | $416.7K | -53% |
13F holdings as of Jun 30, 2026
Explore all tracked funds →Are Tenable Holdings, Inc. insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Aug 19, 26 | Zecher Linda Kay | Director | SELL | 690 | $25K |
| Aug 18, 26 | Zecher Linda Kay | Director | SELL | 700 | $25K |
| Aug 7, 26 | Zecher Linda Kay | Director | SELL | 550 | $20K |
| Aug 7, 26 | Vicks Raymond Jr. | Director | SELL | 1.8K | $65K |
| Aug 4, 26 | Zecher Linda Kay | Director | SELL | 600 | $22K |
| Aug 3, 26 | Zecher Linda Kay | Director | SELL | 1.5K | $50K |
SEC Form 4 filings as of Oct 21, 2026
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Powered by TradingViewWhat does Tenable Holdings, Inc. do?
Tenable Holdings Inc. is a cybersecurity company that provides exposure management solutions designed to identify, measure, and close security gaps across organizations' attack surfaces. Founded in 2002 and headquartered in Columbia, Maryland, the company pioneered vulnerability management through its widely deployed Nessus software and has evolved into a comprehensive exposure management platform. Tenable One, the company's flagship unified platform, delivers visibility, insight, and action across traditional IT infrastructure, cloud environments, operational technology systems, and modern attack surfaces. The platform incorporates multiple specialized solutions including Tenable Vulnerability Management, Cloud Security, Identity Exposure, Attack Surface Management, and OT Security, which can be deployed individually or as integrated modules. Tenable serves approximately 40,000 customers globally, including 65% of the Fortune 500, helping organizations understand and reduce cyber risk through AI-powered analytics and prioritization capabilities. The company operates across the Americas, Europe, the Middle East, Africa, and Asia Pacific regions, with a significant portion of its customer base in the United States.