Donald G Cook
CIK 1334785 · last filed 2026-01-07
Donald G Cook is a corporate insider who has filed 51 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for TPL, was dated Jan 7, 2026. Across all open-market trades the lifetime net is +$32.9K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $1.2M 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.
$1.17M
2
51
$32.9K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| TPL | Director | 3,086 | $378.91 | $1.17M | $32.9K | 9 | 2026-01-07 |
| BURLINGTON NORTHERN SANTA FE, LLC (BNI) Delisted | Director | 11,330 | — | — | $0 | 7 | 2009-04-29 |
Recent Filings
51 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-07 | TPL | Grant (A) | +554 | $0 | EDGAR |
| 2025-01-06 | TPL | Grant (A) | +132 | $0 | EDGAR |
| 2024-05-20 | TPL | Buy (P) | +10 | $6.1K | EDGAR |
| 2024-05-17 | TPL | Buy (P) | +10 | $6.1K | EDGAR |
| 2024-01-03 | TPL | Grant (A) | +80 | $0 | EDGAR |
| 2023-11-08 | TPL | Buy (P) | +5 | $8.7K | EDGAR |
| 2023-01-03 | TPL | Grant (A) | +54 | $0 | EDGAR |
| 2022-03-02 | TPL | Buy (P) | +10 | $12.0K | EDGAR |
| 2022-01-11 | TPL | Grant (A) | +85 | $0 | EDGAR |
| 2021-08-16 | — | Mixed | — | -$28.3K |