NICHOLAS M GRINDSTAFF
CIK 1134710 · Chief Financial Officer (CFO) · last filed 2026-01-05
NICHOLAS M GRINDSTAFF is a Chief Financial Officer (CFO) who has filed 43 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for STRL, was dated Jan 5, 2026. Across all open-market trades the lifetime net is −$2.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $28.2M 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.
$28.22M
3
43
-$2.93M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| STRL | Chief Financial Officer (CFO) | 6,593 | $858.99 | $5.66M | $0 | 2 | 2026-01-05 |
| Orbital Infrastructure Group, Inc. (OIG) Delisted | Chief Financial Officer | 296,052 | $0.38 | $112.5K | $0 | 1 | 2022-10-17 |
| PWR | VP - Finance and Treasurer | 31,868 | $707.74 | $22.55M | -$2.93M | 40 | 2021-05-12 |
Recent Filings
43 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-05 | STRL | Mixed | +968 | -$18.7K | EDGAR |
| 2025-07-10 | STRL | Grant (A) | +5,560 | $0 | EDGAR |
| 2022-10-17 | Orbital Infrastructure Group, Inc. (OIG) Delisted | Grant (A) | +154,106 | $0 | EDGAR |
| 2021-05-12 | PWR | Sell (S) | −8,454 | -$855.7K | EDGAR |
| 2021-03-29 | PWR | Mixed | +909 | -$41.0K | EDGAR |
| 2021-03-05 | PWR | Mixed | +3,646 | -$179.0K | EDGAR |
| 2021-03-02 | PWR | Tax (F) | −399 | -$33.5K | EDGAR |
| 2021-01-05 | PWR | Tax (F) | −2,624 | -$189.0K | EDGAR |
| 2020-11-04 | PWR | Sell (S) | −8,256 | -$532.8K | EDGAR |
| 2020-03-30 | PWR | Grant (A) | +3,744 | $0 | EDGAR |