4
Changes in Ownership
Amphastar Pharmaceuticals, Inc. Filed Acc 0001415889-25-008525
SENIOR EVP, PRODUCTION CENTER gave up 3,189 shares (to pay taxes)
From the SEC's structured data for this filing
Trades in this filing
| Insider | Date | Transaction | Shares | Price | Value | Owned after | D/I |
|---|---|---|---|---|---|---|---|
| Zhou Rong SENIOR EVP, PRODUCTION CENTER | 2025-03-15 | Shares withheld for taxes | −1,222 | $26.66 | $32,579 | 139,464 | D |
| Zhou Rong SENIOR EVP, PRODUCTION CENTER | 2025-03-17 | Shares withheld for taxes | −1,967 | $27.69 | $54,466 | 137,497 | D |
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