WILLIAM F DOYLE
CIK 1194459 · Executive Chairman · last filed 2026-05-29
WILLIAM F DOYLE is an Executive Chairman who has filed 72 SEC Form 4 insider transactions across 7 companies since 2015. The most recent filing, for PROK, was dated May 29, 2026. Across all open-market trades the lifetime net is −$72.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $16.0M 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.
$16.03M
7
72
-$72.50M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PROK | Director | — | $1.64 | — | $0 | 4 | 2026-05-29 |
| NVCR | Executive Chairman | 766,564 | $17.78 | $13.63M | -$73.23M | 39 | 2026-03-05 |
| ELAN | Director | 94,499 | $24.17 | $2.28M | $499.2K | 4 | 2024-12-03 |
| Elanco Animal Health Inc (ELAT) Delisted | Director | 25,956 | $21.32 | $553.4K | $0 | 2 | 2022-12-02 |
| NERV | Director | 26,111 | $4.51 | $117.8K | $223.0K | 16 | 2022-06-28 |
| OptiNose, Inc. (OPTN) Delisted | Director | 836,028 | $9.60 | $8.03M | $0 | 5 | 2020-06-12 |
| ZTS | 0 | $79.57 | $0 | $0 | 1 | 2016-05-12 |
Recent Filings
72 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-29 | PROK | Grant (A) | — | $0 | EDGAR |
| 2026-03-05 | NVCR | Mixed | +328,397 | -$932.9K | EDGAR |
| 2025-06-02 | PROK | Grant (A) | — | $0 | EDGAR |
| 2024-12-03 | ELAN | Grant (A) | +18,169 | $0 | EDGAR |
| 2024-06-03 | PROK | Grant (A) | — | $0 | EDGAR |
| 2024-05-23 | ELAN | Buy (P) | +15,000 | $254.7K | EDGAR |
| 2024-03-12 | ELAN | Buy (P) | +15,000 | $244.5K | EDGAR |
| 2023-12-04 | ELAN | Grant (A) | +20,374 | $0 | EDGAR |
| 2023-07-03 | PROK | Grant (A) | — | $0 | EDGAR |
| 2022-12-02 | Elanco Animal Health Inc (ELAT) Delisted | Grant (A) | +18,649 | $0 | EDGAR |