PETERS WILLIAM J (CFO, EVP & TREASURER) received a stock award from AMPHASTAR PHARMACEUTICALS, INC.
Compensation award — not an open‑market transaction. Less informative as a directional signal.
A · 1 award
Filed: 3/11/2026ACC: 0001263136-26-000008
DirectorOfficer· CFO, EVP & TREASURER
Since Mar 2026
+176.47K
Net shares
Net buyer
$62.3K
Total sold
0
Open market trades
0B · 0S
3
Total transactions
179.76K acquired · 3.30K disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
+58.69K
Price / share
—
Trade value
—
% of position
48.3%
3/9/2026
121.64K→180.33K
Common Stock
Direct
Shares
−3.30K
Price / share
$18.91
Trade value
$62.35K
% of position
1.8%
3/10/2026
180.33K→177.04K
Total
Net shares
+55.40K
Net value
-$62.35K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 3/9/2026 | A · Award | +58.69K | — | — | 48.3% | 121.64K | 180.33K |
| Common Stock Direct | 3/10/2026 | F · Tax Withholding | −3.30K | $18.91 | $62.35K | 1.8% | 180.33K | 177.04K |
| Total | +55.40K | -$62.35K | ||||||
Derivative Transactions1
Employee Stock Option (right to buy)
Direct
Converts to
Common Stock
121.07K shares
Shares
+121.07K
Strike price
19.21
Held after
121.07K
Exercisable
—
3/9/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Employee Stock Option (right to buy) Direct | Common Stock121.07K shares | 3/9/2026 | A · Award | +121.07K | 19.21 | — | 121.07K |