ZHOU RONG (SENIOR EVP, PRODUCTION CENTER) 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: 0001645326-26-000008
Officer· SENIOR EVP, PRODUCTION CENTER
Since Mar 2026
+118.56K
Net shares
Net buyer
$41.9K
Total sold
0
Open market trades
0B · 0S
3
Total transactions
120.77K acquired · 2.21K disposed
Non-Derivative Transactions2
Common Srock
Direct
Shares
+39.43K
Price / share
—
Trade value
—
% of position
29.1%
3/9/2026
135.56K→174.99K
Common Stock
Direct
Shares
−2.21K
Price / share
$18.91
Trade value
$41.89K
% of position
1.3%
3/10/2026
174.99K→172.78K
Total
Net shares
+37.22K
Net value
-$41.89K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Srock Direct | 3/9/2026 | A · Award | +39.43K | — | — | 29.1% | 135.56K | 174.99K |
| Common Stock Direct | 3/10/2026 | F · Tax Withholding | −2.21K | $18.91 | $41.89K | 1.3% | 174.99K | 172.78K |
| Total | +37.22K | -$41.89K | ||||||
Derivative Transactions1
Employee Stock Option (right to buy)
Direct
Converts to
Common Stock
81.34K shares
Shares
+81.34K
Strike price
19.21
Held after
81.34K
Exercisable
—
3/9/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Employee Stock Option (right to buy) Direct | Common Stock81.34K shares | 3/9/2026 | A · Award | +81.34K | 19.21 | — | 81.34K |
Non-Derivative Holdings (Post-Transaction)2
Common Stock
IndirectShares owned99.67K
Common Stock
IndirectShares owned5K
Total
104.67K indirect104.67K
| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Common Stock | 99.67K | Indirect |
| Common Stock | 5K | Indirect |
| Total | 104.67K | 104.67K indirect |
Derivative Holdings (Post-Transaction)0
No derivative holdings reported