F5
FFIV · NASDAQ
Who owns FFIV
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 40.7% of FFIV’s shares.
- BlackRock Institutional Trust Company, N.A.7.2%
- Vanguard Capital Management, LLC6.5%
- State Street Investment Management (US)5.5%
- Vanguard Portfolio Management, LLC4.9%
- Next 6 largest institutions16.7%
- All other shareholders59.3%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 4.07M | 7.17% |
| Vanguard Capital Management, LLC | 3.69M | 6.49% |
| State Street Investment Management (US) | 3.10M | 5.45% |
| Vanguard Portfolio Management, LLC | 2.81M | 4.94% |
| Jericho Capital Asset Management L.P. | 2.12M | 3.73% |
| Hotchkis and Wiley Capital Management, LLC | 2.06M | 3.63% |
| Geode Capital Management, L.L.C. | 1.78M | 3.13% |
| First Trust Advisors L.P. | 1.54M | 2.71% |
| Sanders Capital, LLC | 1.06M | 1.87% |
| AQR Capital Management, LLC | 925.63K | 1.63% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 1.80M | 3.16% |
| Vanguard 500 Index Fund | 1.48M | 2.61% |
| Vanguard Small-Cap Index Fund | 1.30M | 2.28% |
| First Trust Nasdaq Cybersecurity ETF | 1.19M | 2.09% |
| Vanguard Windsor II Fund | 1.06M | 1.87% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $14.65M (48 trades) of FFIV on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Maddison John Anthony | Sale | 204 | $82.87K |
| MONTOYA MICHAEL F | Sale | 80 | $33.13K |
| MONTOYA MICHAEL F | Sale | 440 | $181.86K |
| MONTOYA MICHAEL F | Sale | 920 | $379.39K |
| MONTOYA MICHAEL F | Sale | 1.17K | $482.69K |
| MONTOYA MICHAEL F | Sale | 277 | $113.67K |
| MONTOYA MICHAEL F | Sale | 240 | $98.15K |
| MONTOYA MICHAEL F | Sale | 1.30K | $526.49K |
| OKEKE ANGELIQUE M | Award | 3.00K | — |
| FOUNTAIN THOMAS DEAN | Sale | 1.21K | $500.87K |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Alan ArmstrongSenator | Purchase | $1K–$15K | Mar 27, 2026 |
| Julie JohnsonHouse | Sale | $1K–$15K | Oct 22, 2025 |
Short interest
Settled Sep 30, 2026
- Shares short
- 1.26M
- Days to cover
- 2.13
- % of shares outstanding
- 2.22%
- Average daily volume
- 592.30K
- Change since last report
- −6.6%
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