Michael L. Dreyer is Director at F5, INC. (FFIV). They have made 8 open-market trades across 2 companies since 2018, most recently 2026-03-11.
CIK 0001560297
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.
0 open-market purchases, against 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| IIVI | 27,476 | $6.2M |
| COHR | 12,364 | $2.4M |
| FFIV | 2,243 | $739K |
| SIVB | 5,650 | $599K |
| FNSR | 8,795 | $209K |
| Total | $10.2M |
Shares reported on the most recent Form 4, priced at the 2026-03-13 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 | 2026-02-20 | 2026-02-23 | $282.41 | $866K | +5.2% | +10.5% | +47.2% |
| COHR | SELL | 2025-11-14 | 2025-11-17 | $144.88 | $3.4M | +20.0% | +24.5% | +60.7% |
| FFIV | SELL | 2025-05-27 | 2025-05-28 | $285.96 | $1.0M | +3.2% | +3.6% | +10.5% |
| COHR | SELL | 2024-06-05 | 2024-06-06 | $66.61 | $1.9M | +12.8% | +17.6% | +13.6% |
| FFIV | SELL | 2024-05-30 | 2024-06-03 | $167.93 | $756K | +1.1% | +2.6% | +19.7% |
| FFIV | SELL | 2023-05-24 | 2023-05-25 | $143.19 | $788K | +0.2% | -0.7% | +8.9% |
| FFIV | SELL | 2021-05-03 | 2021-11-30 | $187.14 | $1.1M | -0.6% | +6.3% | -13.0% |
| FFIV | SELL | 2018-08-21 | 2018-08-23 | $183.03 | $2.1M | +1.8% | +4.9% | -9.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.