Tenable Holdings, Inc.
Tenable Holdings, Inc. (TENB) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · TENB · as of Sep 30, 2025
Ownership Breakdown
302
Institutional Holders
▲ 16 vs Q2
$3.22B
Total Inst. Value
▼ $542.85M vs Q2
110.27M
Shares Outstanding
freeFloat 98.65%
110.32M
13F Shares Held
▼ 994,482 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
TENB largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC services-prepackaged software | 14.96M | 12.41% | 12.41% | $436.31B | Nov 7, 2025 | ▲ 778.7K |
BLACKROCK, INC. services-prepackaged software | 13.15M | 10.91% | 10.91% | $383.46B | Nov 12, 2025 | ▲ 182.3K |
AMERIPRISE FINANCIAL INC services-prepackaged software | 7.18M | 5.96% | 5.96% | $209.35B | Nov 14, 2025 | ▲ 713.3K |
RGM CAPITAL, LLC services-prepackaged software | 4.47M | 3.71% | 3.71% | $130.29B | Nov 13, 2025 | ▲ 503.1K |
SHAPIRO CAPITAL MANAGEMENT LLC services-prepackaged software | 3.61M | 3.00% | 3.00% | $105.34B | Nov 14, 2025 | ▲ 1.01M |
FIRST TRUST ADVISORS LP services-prepackaged software | 3.22M | 2.67% | 2.67% | $93.89B | Nov 12, 2025 | ▲ 282.3K |
STATE STREET CORP services-prepackaged software | 3.05M | 2.53% | 2.53% | $89.05B | Nov 14, 2025 | ▼ 2.4K |
GEODE CAPITAL MANAGEMENT, LLC services-prepackaged software | 2.94M | 2.44% | 2.44% | $85.69B | Nov 12, 2025 | ▲ 31.4K |
ASSENAGON ASSET MANAGEMENT S.A. services-prepackaged software | 2.55M | 2.12% | 2.12% | $74.34B | Oct 7, 2025 | ▼ 690.3K |
MACKENZIE FINANCIAL CORP services-prepackaged software | 2.51M | 2.08% | 2.08% | $73.08B | Nov 13, 2025 | ▼ 183.8K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
34
Increased
+11.08M shares0
New Positions
first time holders16
Decreased
−8.77M shares0
Sold Out
fully exitedNet shares change (top 50)
+2.31M
+11.08M / −8.77M
Net new holders
+18
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
TENB insider trading · insider activity
Source: SEC Form 4
19
Buy transactions
12
Sell transactions
1.58
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Brown Matthew Charles Chief Financial Officer | May 21, 2026 | Tax Withhold | 5,219 | $25.17 | $131.4K | 39.9K | Form 4 ↗ |
Anschutz Barron Chief Accounting Officer | May 22, 2026 | Tax Withhold | 779 | $25.45 | $19.8K | 73.9K | Form 4 ↗ |
Anschutz Barron Chief Accounting Officer | May 22, 2026 | Tax Withhold | 602 | $25.45 | $15.3K | 73.0K | Form 4 ↗ |
Anschutz Barron Chief Accounting Officer | May 22, 2026 | Tax Withhold | 640 | $25.45 | $16.3K | 72.4K | Form 4 ↗ |
Vintz Stephen A Co-Chief Executive Officer | May 22, 2026 | Tax Withhold | 2,163 | $25.45 | $55.0K | 487.8K | Form 4 ↗ |
Vintz Stephen A Co-Chief Executive Officer | May 22, 2026 | Tax Withhold | 3,716 | $25.45 | $94.6K | 485.5K | Form 4 ↗ |
Vintz Stephen A Co-Chief Executive Officer | May 22, 2026 | Tax Withhold | 2,438 | $25.45 | $62.0K | 481.4K | Form 4 ↗ |
Vintz Stephen A Co-Chief Executive Officer | May 22, 2026 | Tax Withhold | 2,917 | $25.45 | $74.2K | 478.8K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Tenable Holdings, Inc. (TENB) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 1.35%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Tenable Holdings, Inc. is VANGUARD GROUP INC, holding approximately 14.96 million shares — equal to 12.41% of outstanding shares — as of September 30, 2025.
A total of 302 institutional investors currently hold TENB stock, with a combined institutional value of approximately $3.22 billion as of the most recent 13F filing period.
Frequently asked questions
TENB ownershipTenable Holdings, Inc. (TENB) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is VANGUARD GROUP INC with a 12.41% stake. Company insiders hold 1.35%. Data sourced from SEC Form 13F as of September 30, 2025.