Michael L Dreyer
CIK 1560297 · Chief Operations Officer · last filed 2026-03-13
Michael L Dreyer is a Chief Operations Officer who has filed 54 SEC Form 4 insider transactions across 6 companies since 2012. The most recent filing, for FFIV, was dated May 28, 2026. Across all open-market trades the lifetime net is −$6.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.9M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$3.93M
6
54
-$6.94M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| FFIV | Director | 2,243 | $407.34 | $913.7K | -$4.31M | 21 | 2026-03-13 |
| COHR | Director | 12,364 | $244.11 | $3.02M | -$2.62M | 6 | 2026-02-12 |
| COHERENT CORP. (IIVIP) Delisted | Director | 27,476 | $187.51 | $5.15M | $0 | 3 | 2022-08-30 |
| COHERENT CORP. (IIVI) Delisted | Director | 16,639 | $227.08 | $3.78M | $0 | 1 | 2019-10-08 |
| FINISAR CORP (FNSR) Delisted | Director | 64,204 | — | — | $0 | 5 | 2019-09-11 |
| SVB FINANCIAL GROUP (SIVB) Delisted | Chief Operations Officer | 5,677 | $106.04 | $602.0K | $0 | 10 | 2018-11-14 |
Recent Filings
54 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-28 | FFIV | Notice (144) | −1,309 | -$496.5K | EDGAR |
| 2026-03-13 | FFIV | Exer (M) | +934 | $0 | EDGAR |
| 2026-02-23 | FFIV | Sell (S) | −3,067 | -$866.1K | EDGAR |
| 2026-02-20 | FFIV | Notice (144) | −3,067 | -$865.1K | EDGAR |
| 2026-02-12 | COHR | Grant (A) | +279 | $0 | EDGAR |
| 2025-11-17 | COHR | Sell (S) | −11,570 | -$1.68M | EDGAR |
| 2025-11-14 | COHR | Notice (144) | −11,570 | -$1.68M | EDGAR |
| 2025-09-02 | COHR | Grant (A) | +2,272 | $0 | EDGAR |
| 2025-05-28 | FFIV | Sell (S) | −1,800 | -$514.7K | EDGAR |
| 2025-05-27 | FFIV | Notice (144) | −1,800 | -$514.6K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.