Thomas Dean Fountain is VP at F5, INC. (FFIV). They have made 29 open-market trades across 1 company since 2019, most recently 2026-08-05.
CIK 0001728330
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $2.2M since 2020, against 28 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| FFIV | 8,060 | $3.6M |
Shares reported on the most recent Form 4, priced at the 2026-08-06 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| FFIV | SELL · 10b5-1 | 2026-08-05 | 2026-08-06 | $414.63 | $501K | -6.1% | -7.0% | — |
| FFIV | SELL · 10b5-1 | 2026-05-05 | 2026-05-07 | $330.58 | $439K | +10.9% | +14.6% | +18.9% |
| FFIV | SELL · 10b5-1 | 2026-02-10 | 2026-02-11 | $278.32 | $361K | -3.2% | +2.9% | +26.3% |
| FFIV | SELL · 10b5-1 | 2026-01-26 | 2026-01-28 | $261.87 | $875K | -5.1% | -7.6% | +3.4% |
| FFIV | SELL · 10b5-1 | 2026-01-20 | 2026-01-22 | $262.73 | $292K | +5.2% | +3.3% | +19.2% |
| FFIV | SELL · 10b5-1 | 2026-01-12 | 2026-01-14 | $265.00 | $294K | -2.5% | -1.2% | +6.5% |
| FFIV | SELL · 10b5-1 | 2026-01-05 | 2026-01-07 | $263.79 | $293K | -2.7% | +3.7% | +15.8% |
| FFIV | SELL · 10b5-1 | 2025-12-29 | 2025-12-30 | $262.86 | $289K | +4.4% | +9.0% | +7.9% |
| FFIV | SELL · 10b5-1 | 2025-12-22 | 2025-12-23 | $257.90 | $286K | +3.9% | +0.6% | +11.2% |
| FFIV | SELL · 10b5-1 | 2025-12-15 | 2025-12-17 | $264.76 | $588K | +1.2% | +4.7% | +11.6% |
| FFIV | SELL · 10b5-1 | 2025-12-08 | 2025-12-10 | $248.66 | $552K | +0.9% | +4.4% | +10.9% |
| FFIV | SELL · 10b5-1 | 2025-12-01 | 2025-12-03 | $236.99 | $526K | +9.4% | +6.7% | +17.1% |
| FFIV | SELL · 10b5-1 | 2025-11-24 | 2025-11-25 | $234.92 | $522K | +3.1% | +9.3% | +11.9% |
| FFIV | SELL | 2025-11-18 | 2025-11-19 | $227.44 | $505K | +5.1% | +13.2% | +19.2% |
| FFIV | SELL · 10b5-1 | 2025-11-03 | 2025-11-04 | $249.76 | $4.1M | -3.4% | +0.5% | +15.9% |
| FFIV | SELL · 10b5-1 | 2025-08-04 | 2025-08-06 | $309.73 | $834K | -1.9% | -2.0% | -25.2% |
| FFIV | SELL · 10b5-1 | 2025-05-02 | 2025-05-05 | $269.03 | $725K | +7.5% | +11.7% | +22.0% |
| FFIV | SELL · 10b5-1 | 2025-02-03 | 2025-02-04 | $293.40 | $771K | +3.9% | -7.6% | -10.5% |
| FFIV | SELL · 10b5-1 | 2024-11-04 | 2024-11-06 | $231.88 | $1.8M | +0.4% | +7.6% | +25.4% |
| FFIV | SELL · 10b5-1 | 2024-08-02 | 2024-08-05 | $192.71 | $328K | +4.0% | +6.1% | +23.0% |
| FFIV | SELL · 10b5-1 | 2024-05-02 | 2024-05-02 | $167.53 | $285K | +2.3% | -0.7% | +21.1% |
| FFIV | SELL · 10b5-1 | 2024-02-08 | 2024-02-12 | $183.06 | $312K | +1.6% | +5.9% | -6.3% |
| FFIV | SELL · 10b5-1 | 2023-11-02 | 2023-11-06 | $150.40 | $1.2M | +4.2% | +9.2% | +19.4% |
| FFIV | SELL · 10b5-1 | 2023-08-02 | 2023-08-03 | $159.08 | $292K | -4.0% | +1.6% | -6.2% |
| FFIV | SELL · 10b5-1 | 2023-05-02 | 2023-05-02 | $133.02 | $244K | +4.3% | +10.8% | +19.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.