William Marshall Jr Mauney
CIK 2025220 · Vice President, R&D · last filed 2026-05-13
William Marshall Jr Mauney is a Vice President, R&D who has filed 9 SEC Form 4 insider transactions across 1 company since 2024. The most recent filing shows the insider sold $809.2K of POWL on May 13, 2026. Across all open-market trades the lifetime net is −$2.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.1M 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.
$3.10M
1
9
-$2.11M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| POWL | Vice President, R&D | 11,551 | $268.51 | $3.10M | -$2.11M | 9 | 2026-05-13 |
Recent Filings
9 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-13 | POWL | Sell (S) | −2,500 | -$809.2K | EDGAR |
| 2025-12-22 | POWL | Sell (S) | −3,000 | -$995.2K | EDGAR |
| 2025-12-03 | POWL | Grant (A) | +3,000 | $945.1K | EDGAR |
| 2025-10-01 | POWL | Mixed | −166 | -$54.2K | EDGAR |
| 2025-09-09 | POWL | Tax (F) | −770 | -$205.4K | EDGAR |
| 2024-12-06 | POWL | Sell (S) | −1,000 | -$284.2K | EDGAR |
| 2024-10-02 | POWL | Mixed | −33 | -$22.9K | EDGAR |
| 2024-09-10 | POWL | Tax (F) | −770 | $0 | EDGAR |
| 2024-08-19 | POWL | Sell (S) | −150 | -$24.6K | EDGAR |