Cerberus Cyber Sentinel Corporation (CISO) Ownership
CISO ownership summary
as of October 18, 2026- Institutions
- 5.5% of shares outstanding
- Insiders
- 32.22% of shares outstanding
- Shares outstanding
- 45.6M
- Float
- 30.8M shares available to trade
- Short interest
- 0.24% 66K shares short
- Days to cover
- 0.38 short interest down 22.1% vs prior month
- Institutions 5.49%
- Insiders 32.22%
- Other investors 62.29%
CISO top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard Capital Management, LLC | 1.61% | 732K | $127,347 | — | June 30, 2026 |
| 2 | Citadel Advisors Llc | 1.09% | 497K | $86,473 | +385,493 (+345.8%) | June 30, 2026 |
| 3 | Geode Capital Management, LLC | 0.85% | 389K | $67,601 | −125,700 (−24.4%) | June 30, 2026 |
| 4 | Vanguard Fiduciary Trust Co | 0.41% | 187K | $32,515 | — | June 30, 2026 |
| 5 | Mercer Global Advisors Inc. | 0.32% | 145K | $25,212 | — | June 30, 2026 |
| 6 | State Street Corp | 0.29% | 131K | $22,741 | — | June 30, 2026 |
| 7 | Northern Trust Corp | 0.23% | 105K | $18,322 | −3,521 (−3.2%) | June 30, 2026 |
| 8 | XTX Topco Ltd | 0.17% | 77K | $13,314 | −7,137 (−8.5%) | June 30, 2026 |
| 9 | Advisor Group Holdings, Inc. | 0.08% | 36K | $6,322 | — | June 30, 2026 |
| 10 | Quadrant Private Wealth Management, LLC | 0.07% | 30K | $5,220 | — | June 30, 2026 |
| 11 | UBS Group AG | 0.06% | 28K | $4,822 | −506,515 (−94.8%) | June 30, 2026 |
| 12 | BlackRock Inc | 0.06% | 26K | $4,605 | −5,271 (−16.6%) | June 30, 2026 |
| 13 | HRT FINANCIAL LLC | 0.05% | 22K | $3,812 | +21,906 (0.0%) | June 30, 2026 |
| 14 | TWO SIGMA SECURITIES, LLC | 0.04% | 17K | $2,901 | −10,561 (−38.8%) | June 30, 2026 |
| 15 | Susquehanna International Group, LLP | 0.03% | 15K | $2,618 | +4 (+0.0%) | June 30, 2026 |
| 16 | CapTrust Financial Advisors | 0.03% | 13K | $2,320 | — | June 30, 2026 |
| 17 | LPL Financial Corp | 0.02% | 11K | $1,846 | −42,400 (−80.0%) | June 30, 2026 |
| 18 | Tower Research Capital LLC | 0.01% | 6,481 | $1,128 | −686 (−9.6%) | June 30, 2026 |
| 19 | ORG Wealth Partners, LLC | 0.01% | 4,546 | $791 | — | June 30, 2026 |
| 20 | SBI Securities Co Ltd | <0.01% | 1,500 | $261 | +273 (+22.2%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 4 holders added 408K shares and 8 cut 702K.
CISO top mutual fund and ETF holders
8 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | T. Rowe Price Global Growth Eq I | 9.82% | 4.4M | $763,077 | +4.4M (0.0%) | August 31, 2026 |
| 2 | T. Rowe Price Gl Gr Eq Net Zero Trans I | 7.55% | 3.4M | $586,693 | +3.4M (0.0%) | August 31, 2026 |
| 3 | Vanguard MStar Total Stk Mkt Idx Invest | 0.97% | 434K | $75,499 | — | August 31, 2026 |
| 4 | Fidelity Extended Market Index | 0.46% | 205K | $35,689 | −1,102 (−0.5%) | August 31, 2026 |
| 5 | Fidelity Series Total Market Index | 0.11% | 47K | $8,177 | — | August 31, 2026 |
| 6 | Fidelity Total Market Index | 0.09% | 42K | $7,336 | — | August 31, 2026 |
| 7 | T. Rowe Price M-A Glb Inc I USD | 0.06% | 26K | $4,489 | +25,800 (0.0%) | August 31, 2026 |
| 8 | Fidelity Nasdaq Composite Index | 0.02% | 9,260 | $1,611 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
CISO shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns CISO
Institutional investors own 5.5% of Cerberus Cyber Sentinel's shares and insiders 32.22%. The largest holder is Vanguard Capital Management, LLC with 1.61% of the shares (732K), as of June 30, 2026. Among the top 20 institutions, 4 added shares and 8 reduced their stake in the latest filings. Short interest is 0.24% of the float, or 0.38 days of average trading volume. The share count rose 555.5% since 2018.
Related: CISO key metrics. See the CISO stock overview for the latest quote and news.
CISO ownership FAQ
Who owns the most Cerberus Cyber Sentinel stock?
The largest shareholders of Cerberus Cyber Sentinel are Vanguard Capital Management, LLC (1.61%), Citadel Advisors Llc (1.09%), Geode Capital Management, LLC (0.85%), Vanguard Fiduciary Trust Co (0.41%), Mercer Global Advisors Inc. (0.32%).
What percentage of Cerberus Cyber Sentinel is owned by institutions?
Institutions hold 5.5% of Cerberus Cyber Sentinel's shares outstanding; insiders hold 32.22%.
Which funds own Cerberus Cyber Sentinel?
The largest fund holders of Cerberus Cyber Sentinel are T. Rowe Price Global Growth Eq I (9.82%), T. Rowe Price Gl Gr Eq Net Zero Trans I (7.55%), Vanguard MStar Total Stk Mkt Idx Invest (0.97%), Fidelity Extended Market Index (0.46%), Fidelity Series Total Market Index (0.11%).
What is Cerberus Cyber Sentinel's short interest?
66K shares of Cerberus Cyber Sentinel were sold short, 0.24% of the float; at the average daily volume it would take 0.38 days to cover.
How many shares of Cerberus Cyber Sentinel are outstanding?
Cerberus Cyber Sentinel has 45.6M shares outstanding, of which 30.8M are in the public float.