As of September 05, 2026, the three largest insider holders of FFIV are Francois Locoh-Donou (President, Ceo Director, 146.99K shares), Francois Locoh-Donou (President, Ceo Director, 42.00K shares), Ana Maria White (Evp And Chief People Officer, 38.66K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Francois Locoh-Donou | President, Ceo Director | 146,989 | 0 | 146,989 | 46.1% | 06 Aug, 2026 |
| 2 | Ana Maria White | Evp And Chief People Officer | 38,656 | 0 | 38,656 | 12.1% | 15 Aug, 2023 |
| 3 | Chad Michael Whalen | Evp, Worldwide Sales | 21,536 | 0 | 21,536 | 6.8% | 04 Aug, 2026 |
| 4 | Geng Lin | Evp, Chief Technology Officer | 13,946 | 0 | 13,946 | 4.4% | 03 Aug, 2023 |
| 5 | Angus James Bruce Robertson | Svp Gm, Nginx | 13,043 | 0 | 13,043 | 4.1% | 03 Nov, 2021 |
| 6 | Kunal Anand | Chief Technology Officer | 12,586 | 0 | 12,586 | 4.0% | 04 Aug, 2026 |
| 7 | Thomas Dean Fountain | Evp Global Services Strategy | 8,060 | 0 | 8,060 | 2.5% | 06 Aug, 2026 |
| 8 | Alan Higginson | Director | 7,774 | 0 | 7,774 | 2.4% | 13 Mar, 2026 |
| 9 | Haiyan Song | Evp Of Security | 6,460 | 0 | 6,460 | 2.0% | 03 Feb, 2023 |
| 10 | Sandra E. Bergeron | Director | 6,218 | 0 | 6,218 | 2.0% | 10 Mar, 2023 |
| 11 | Sripada Shivananda | Director | 6,172 | 0 | 6,172 | 1.9% | 15 Mar, 2024 |
| 12 | Michel Combes | Director | 5,805 | 0 | 5,805 | 1.8% | 13 Mar, 2026 |
| 13 | Michael F Montoya | Chief Technology Ops Officer | 5,735 | 0 | 5,735 | 1.8% | 04 Aug, 2026 |
| 14 | Marie Myers | Director | 5,097 | 0 | 5,097 | 1.6% | 10 Mar, 2023 |
| 15 | Elizabeth Buse | Director | 4,947 | 0 | 4,947 | 1.6% | 12 Jun, 2026 |
| 16 | Tami A. Erwin | Director | 2,842 | 0 | 2,842 | 0.9% | 13 Mar, 2026 |
| 17 | Michael L Dreyer | Director | 2,243 | 0 | 2,243 | 0.7% | 13 Mar, 2026 |
| 18 | Angelique M Okeke | Evp, General Counsel | 2,240 | 0 | 2,240 | 0.7% | 04 Aug, 2026 |
| 19 | Marianne Budnik | Director | 2,141 | 0 | 2,141 | 0.7% | 13 Mar, 2026 |
| 20 | James Malcolm Jr Phillips | Director | 1,486 | 0 | 1,486 | 0.5% | 10 Mar, 2023 |
| 21 | Julie Marie Gonzalez | Director | 1,414 | 0 | 1,414 | 0.4% | 13 Mar, 2026 |
| 22 | Maya Mcreynolds | Director | 1,414 | 0 | 1,414 | 0.4% | 13 Mar, 2026 |
| 23 | John Anthony Maddison | Chief Product Mkting Officer | 1,353 | 0 | 1,353 | 0.4% | 04 Aug, 2026 |
| 24 | Edward Cooper Werner | Chief Financial Officer | 406 | 0 | 406 | 0.1% | 04 Aug, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 05 Aug, 2026 | Thomas Dean Fountain | Evp Global Services Strategy | Disposed S | 1,208 | $414.63 | $500.87K | 8,060 | Direct |
| 05 Aug, 2026 | Francois Locoh-Donou | President, Ceo Director | Disposed S | 200 | $409.68 | $81.94K | 150,571 | Direct |
| 05 Aug, 2026 | Francois Locoh-Donou | President, Ceo Director | Disposed S | 1,100 | $410.94 | $452.04K | 149,471 | Direct |
| 05 Aug, 2026 | Francois Locoh-Donou | President, Ceo Director | Disposed S | 642 | $411.82 | $264.39K | 148,829 | Direct |
| 05 Aug, 2026 | Francois Locoh-Donou | President, Ceo Director | Disposed S | 996 | $412.90 | $411.24K | 147,833 | Direct |
| 05 Aug, 2026 | Francois Locoh-Donou | President, Ceo Director | Disposed S | 320 | $414.10 | $132.51K | 147,513 | Direct |
| 05 Aug, 2026 | Francois Locoh-Donou | President, Ceo Director | Disposed S | 284 | $415.03 | $117.87K | 147,229 | Direct |
| 05 Aug, 2026 | Francois Locoh-Donou | President, Ceo Director | Disposed S | 200 | $415.97 | $83.19K | 147,029 | Direct |
| 05 Aug, 2026 | Francois Locoh-Donou | President, Ceo Director | Disposed S | 40 | $416.83 | $16.67K | 146,989 | Direct |
| 01 Aug, 2026 | Michael F Montoya | Chief Technology Ops Officer | Acquired M | 2,136 | $0.00 | $0 | 6,575 | Direct |
| 01 Aug, 2026 | Edward Cooper Werner | Chief Financial Officer | Acquired M | 987 | $0.00 | $0 | 1,393 | Direct |
| 01 Aug, 2026 | Chad Michael Whalen | Evp, Worldwide Sales | Acquired M | 2,318 | $0.00 | $0 | 23,150 | Direct |
| 01 Aug, 2026 | Thomas Dean Fountain | Evp Global Services Strategy | Acquired M | 2,700 | $0.00 | $0 | 10,760 | Direct |
| 01 Aug, 2026 | Kunal Anand | Chief Technology Officer | Acquired M | 1,290 | $0.00 | $0 | 13,484 | Direct |
| 01 Aug, 2026 | John Anthony Maddison | Chief Product Mkting Officer | Acquired M | 454 | $0.00 | $0 | 2,603 | Direct |
| 01 Aug, 2026 | Francois Locoh-Donou | President, Ceo Director | Acquired M | 6,233 | $0.00 | $0 | 153,222 | Direct |
| 03 Aug, 2026 | Catherine A Peterman | Chief People Officer | Acquired A | 8,618 | $0.00 | $0 | 8,618 | Direct |
| 01 Aug, 2026 | John Anthony Maddison | Chief Product Mkting Officer | Disposed F | 250 | $402.57 | $100.64K | 2,353 | Direct |
| 01 Aug, 2026 | Chad Michael Whalen | Evp, Worldwide Sales | Disposed F | 911 | $402.57 | $366.74K | 22,239 | Direct |
| 01 Aug, 2026 | Michael F Montoya | Chief Technology Ops Officer | Disposed F | 840 | $402.57 | $338.16K | 5,735 | Direct |