WILLIAM J PETERS
CIK 1263136 · CFO, EVP & TREASURER · last filed 2026-03-17
WILLIAM J PETERS is a CFO, EVP & TREASURER who has filed 101 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing shows the insider had shares withheld for taxes covering $35.9K of AMPH on Mar 17, 2026. Across all open-market trades the lifetime net is −$27.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.5M 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.
$3.52M
2
101
-$27.46M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| AMPH | CFO, EVP & TREASURER | 175,063 | $20.09 | $3.52M | -$22.93M | 83 | 2026-03-17 |
| HI TECH PHARMACAL CO INC (HITK) Delisted | EVP & Chief Financial Officer | 21,250 | — | — | -$4.53M | 18 | 2013-10-04 |
Recent Filings
101 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-17 | AMPH | Tax (F) | −1,973 | -$35.9K | EDGAR |
| 2026-03-11 | AMPH | Mixed | +55,396 | -$62.3K | EDGAR |
| 2026-03-10 | AMPH | Tax (F) | −2,146 | -$41.5K | EDGAR |
| 2026-03-06 | AMPH | Tax (F) | −1,744 | -$34.8K | EDGAR |
| 2025-05-20 | AMPH | Tax (F) | −273 | -$6.8K | EDGAR |
| 2025-03-18 | AMPH | Tax (F) | −4,972 | -$135.6K | EDGAR |
| 2025-03-12 | AMPH | Grant (A) | +36,747 | $0 | EDGAR |
| 2025-03-10 | AMPH | Tax (F) | −2,141 | -$60.6K | EDGAR |
| 2025-03-06 | AMPH | Mixed | +1,520 | -$64.6K | EDGAR |
| 2024-11-08 | AMPH | Mixed | — | -$289.8K | EDGAR |