ZHANG JACK Y. (CEO & CHIEF SCIENTIFIC OFFICER) received a stock award from AMPHASTAR PHARMACEUTICALS, INC.
Compensation award — not an open‑market transaction. Less informative as a directional signal.
Common Stock
Shares
+180.50K
Price / share
—
Trade value
—
% of position
Common Stock
Shares
+72.46K
Price / share
—
Trade value
—
% of position
Common Stock
Shares
−14.79K
Price / share
$18.91
Trade value
$279.58K
% of position
Common Stock
Shares
−4.39K
Price / share
$18.91
Trade value
$83.11K
% of position
Net shares
+233.79K
Net value
-$362.69K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 3/9/2026 | A · Award | +180.50K | — | — | 6.4% | 2.83M | 3.01M |
| Common Stock Indirect | 3/9/2026 | A · Award | +72.46K | — | — | 6.1% | 1.18M | 1.25M |
| Common Stock Direct | 3/10/2026 | F · Tax Withholding | −14.79K | $18.91 | $279.58K | 0.5% | 3.01M | 3M |
| Common Stock Indirect | 3/10/2026 | F · Tax Withholding | −4.39K | $18.91 | $83.11K | 0.4% | 1.25M | 1.25M |
| Total | +233.79K | -$362.69K | ||||||
Employee Stock Option (right to buy)
Common Stock
372.34K shares
Shares
+372.34K
Strike price
19.21
Held after
372.34K
Exercisable
—
Employee Stock Option (right to buy)
Common Stock
149.47K shares
Shares
+149.47K
Strike price
19.21
Held after
149.47K
Exercisable
—
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Employee Stock Option (right to buy) Direct | Common Stock372.34K shares | 3/9/2026 | A · Award | +372.34K | 19.21 | — | 372.34K |
| Employee Stock Option (right to buy) Indirect | Common Stock149.47K shares | 3/9/2026 | A · Award | +149.47K | 19.21 | — | 149.47K |
Common Stock
Indirect| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Common Stock | 6.83M | Indirect |
| Total | 6.83M | 6.83M indirect |