WILLIAM M COOK
CIK 1226577 · Chairman · last filed 2026-07-06
WILLIAM M COOK is a Chairman who has filed 285 SEC Form 4 insider transactions across 6 companies since 2007. The most recent filing, for MATV, was dated Jul 6, 2026. Across all open-market trades the lifetime net is −$2.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $103.2M 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.
$103.23M
6
285
-$2.34M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MATV | Director | 26,436 | $11.68 | $308.8K | $164.6K | 20 | 2026-07-06 |
| AXTA | Director | 49,959 | $37.54 | $1.88M | $163.4K | 15 | 2026-03-05 |
| IEX | Director | 24,114 | $233.71 | $5.64M | -$1.78M | 22 | 2022-05-10 |
| NP | Director | 10,631 | $32.83 | $349.0K | $85.5K | 7 | 2021-05-21 |
| VAL | Director | 20,557 | $77.21 | $1.59M | $0 | 30 | 2016-12-09 |
| DCI | Chairman | 950,520 | $98.34 | $93.47M | -$980.5K | 189 | 2016-03-23 |
Recent Filings
285 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-06 | MATV | Grant (A) | — | $0 | EDGAR |
| 2026-03-05 | AXTA | Mixed | +5,832 | $0 | EDGAR |
| 2026-01-05 | MATV | Grant (A) | — | $0 | EDGAR |
| 2025-10-03 | MATV | Grant (A) | — | $0 | EDGAR |
| 2025-07-02 | MATV | Grant (A) | — | $0 | EDGAR |
| 2025-06-02 | MATV | Buy (P) | +5,000 | $29.2K | EDGAR |
| 2025-04-03 | MATV | Grant (A) | — | $0 | EDGAR |
| 2025-03-06 | AXTA | Grant (A) | — | $0 | EDGAR |
| 2025-03-04 | AXTA | Exer (M) | +6,157 | $0 | EDGAR |
| 2025-01-07 | MATV | Grant (A) | — | $0 | 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.