Tenable Holdings, Inc. (TENB) Institutional Ownership

Ownership Summary

According to SEC filings for the period ending September 2025, Tenable Holdings, Inc. (NASDAQ:TENB) is held by 284 institutional firms.

• The percentage of Tenable Holdings owned by institutions changed from 90.2% in June 2025 to 91.2% in September 2025, marking a slight up trend.
• Institutional share ownership changed by 1.78% QoQ, while the number of institutional owners saw a decrease of 1.05% YoY.
• Among the 284 institutional holders of Tenable Holdings, 162 added to their stakes while 90 trimmed their positions and 32 held steady.
• Collectively, institutional investors increased their stake in Tenable Holdings to 110.40Mn shares as of September 2025, a change that is up by 1.93Mn shares quarter on quarter and up 1.99Mn shares year over year.
• As of September 30, 2025, VANGUARD GROUP INC held Tenable Holdings's largest shareholding position with over 14.96Mn shares, representing 12.36% of total outstanding shares.
• Among the most significant buyers of Tenable Holdings during September 2025 were ROYAL BANK OF CANADA (1.53Mn), SHAPIRO CAPITAL MANAGEMENT LLC (1.01Mn), BARCLAYS PLC (833.12K), VANGUARD GROUP INC (778.70K), AMERIPRISE FINANCIAL INC (713.29K).
• Leading sellers of Tenable Holdings stock in September 2025 included FMR LLC (3.08Mn), MORGAN STANLEY (1.91Mn), Alyeska Investment Group, L.P. (1.25Mn), Squarepoint Ops LLC (1.15Mn), AMERICAN CENTURY COMPANIES INC (868.07K).
• The top 10 institutional holders of Tenable Holdings for the quarter ending September 2025 included VANGUARD GROUP INC (14.96Mn), BlackRock, Inc. (13.15Mn), AMERIPRISE FINANCIAL INC (7.18Mn), RGM Capital, LLC (4.47Mn), SHAPIRO CAPITAL MANAGEMENT LLC (3.61Mn), FIRST TRUST ADVISORS LP (3.22Mn), STATE STREET CORP (3.05Mn), GEODE CAPITAL MANAGEMENT, LLC (2.94Mn), Assenagon Asset Management S.A. (2.55Mn), MACKENZIE FINANCIAL CORP (2.51Mn).