AMPH
Amphastar Pharmaceuticals, Inc.
8 disclosed insider filings · 4 distinct insiders · latest Sep 23, 2026
Total filings
8
4 insiders
Insider buys
0
$0
Insider sells
5
$764K
Grants & other
0
$0
All disclosed filings
Same-day tranches are grouped per insider - the Lots column shows how many individual executions a row covers; Price is the value-weighted average.
| Filed | Tx date | Insider | Type | Qty | Avg price | Value | Lots | Source |
|---|---|---|---|---|---|---|---|---|
| Sep 23, 2026 | Sep 21, 2026 | William J Peters INSIDER | SELL | 4,139 | $25 | $103K | — | EDGAR |
| Sep 17, 2026 | Sep 16, 2026 | Rong Zhou INSIDER | SELL | 10,000 | $23.94 | $239K | — | EDGAR |
| Sep 17, 2026 | Sep 16, 2026 | Rong Zhou INSIDER | OTHER | 10,000 | $13.35 | $134K | — | EDGAR |
| Sep 3, 2026 | Sep 2, 2026 | Rong Zhou INSIDER | SELL | 3,187 | $23.63 | $75K | — | EDGAR |
| Aug 12, 2026 | Aug 11, 2026 | Richard K Prins INSIDER | SELL | 7,973 | $20.3 | $162K | — | EDGAR |
| Aug 11, 2026 | Aug 7, 2026 | William J Peters INSIDER | OTHER | 5,053 | $19.79 | $100K | — | EDGAR |
| Aug 11, 2026 | Aug 7, 2026 | William J Peters INSIDER | SELL | 8,180 | $22.48 | $184K | — | EDGAR |
| Jul 13, 2026 | Jul 9, 2026 | Anthony T Pierce INSIDER | OTHER | 7,886 | — | — | — | EDGAR |