F5, Inc. (FFIV) Shareholders & Insider Trades
F5 shareholders at a glance
The largest holder of F5 stock is BlackRock Advisors LLC, with 4.7 million shares (8.31% of the company), worth about $1.92 billion as of September 25, 2026. The 10 largest holders together own 43.5%.
In Q2 2026, 867 institutional holdings reports listed shares worth $22.80 billion.
Insiders reported 100 transactions in the last two years: 43 sales worth $25.94 million and no purchases. The newest one on file is from May 8, 2026 (Werner Edward Cooper, Chief Financial Officer).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through May 8, 2026.
F5, Inc.
Shareholders Summary
2026Q2
Ownership by Type
Geographic Distribution
Largest F5 shareholders
| Holder | Shares | % of company | Value |
|---|---|---|---|
| BlackRock Advisors LLC | 4.7 million | 8.31% | $1.9B |
| Vanguard Capital Management LLC | 3.7 million | 6.51% | $1.5B |
| State Street Corporation | 3.1 million | 5.47% | $1.3B |
| Vanguard Portfolio Management LLC | 2.8 million | 4.96% | $1.1B |
| Jericho Capital Asset Management LP | 2.1 million | 3.74% | $863.0M |
| Hotchkis & Wiley Capital Management LLC | 2.1 million | 3.64% | $839.0M |
| Geode Capital Management LLC | 1.8 million | 3.14% | $724.0M |
| First Trust Advisors LP | 1.5 million | 2.72% | $627.0M |
| BlackRock Life Ltd. | 1.4 million | 2.56% | $589.0M |
| Invesco Advisers, Inc. | 1.4 million | 2.45% | $564.0M |
As of September 25, 2026.
F5 institutional holdings by quarter
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 867 | – | $22.8B |
| Q1 2026 | 756 | 56.6 million | $16.3B |
| Q4 2025 | 713 | – | $15.3B |
| Q3 2025 | 792 | 55.6 million | $18.0B |
| Q2 2025 | 759 | 55.5 million | $16.3B |
| Q1 2025 | 721 | 55.9 million | $14.9B |
| Q4 2024 | 680 | 55.8 million | $14.0B |
| Q3 2024 | 622 | 55.2 million | $12.2B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
F5 insider trades
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Werner Edward Cooper | May 8, 2026 | Chief Financial Officer | Sale at price 350.00 per share. | $525,000 |
| Whalen Chad Michael | May 8, 2026 | Officer | Sale at price 350.19 per share. | $2.2M |
| Fountain Thomas Dean | May 5, 2026 | Officer | Sale at price 330.58 per share. | $439,010 |
| Locoh Donou Francois | May 5, 2026 | Chief Executive Officer | Sale at price 331.05 - 339.88 per share. | $1.3M |
| Okeke Angelique M | May 4, 2026 | General Counsel | Sale at price 322.33 per share. | $271,402 |
| Anand Kunal | May 4, 2026 | Chief Technology Officer | Sale at price 322.33 per share. | $1.0M |
| Werner Edward Cooper | May 4, 2026 | Chief Financial Officer | Sale at price 322.33 per share. | $193,076 |
| Maddison John Anthony | May 4, 2026 | Officer | Sale at price 322.33 per share. | $322,330 |
| Whalen Chad Michael | May 4, 2026 | Officer | Sale at price 330.30 per share. | $232,532 |
| Werner Edward Cooper | May 1, 2026 | Chief Financial Officer | -- | – |
| Maddison John Anthony | May 1, 2026 | Officer | -- | – |
| Okeke Angelique M | May 1, 2026 | General Counsel | -- | – |
Newest 12 of 100 insider transactions in the last two years.
Questions and answers
Who owns the most F5 stock?
BlackRock Advisors LLC, with 8.31% of the company (as of September 25, 2026). Next: Vanguard Capital Management LLC (6.51%) and State Street Corporation (5.47%).
How many institutions own F5 stock?
867 institutional holdings reports listed F5 shares in Q2 2026 worth $22.80 billion.
Are F5 insiders buying or selling the stock?
In the last two years insiders reported 43 sales and no purchases (100 transactions in all); the newest on file is from May 8, 2026.
