Zhou Ronginsider trades
In SEC Form 4 filings, Zhou Rong is listed as SENIOR EVP, PRODUCTION CENTER of Amphastar Pharmaceuticals, Inc. (AMPH). In the last 90 days, Zhou Rong sold $314.7K of Amphastar Pharmaceuticals, Inc. (AMPH) on the open market and bought none.
Companies and roles
| Company | Role | Transactions | Last filed |
|---|---|---|---|
| AMPHAmphastar Pharmaceuticals, Inc. | SENIOR EVP, PRODUCTION CENTER | 4 | Sep 17 |
Cluster buys
No cluster buy in the last 90 days included a purchase by this insider (two or more insiders buying within 14 days).
Form 4 historysince 2026-09-03
| Company | Traded | Filed | Type | Shares | Price | Value | Owned after | 10b5-1 plan | Filing |
|---|---|---|---|---|---|---|---|---|---|
| AMPHAmphastar Pharmaceuticals, Inc. | Sep 16 | Sep 17 | M | 10,000 | $13.35 | $133,500 | 179,203 | No | Form 4 |
| AMPHAmphastar Pharmaceuticals, Inc. | Sep 16 | Sep 17 | S | 10,000 | $23.94 | Sale −$239,404 | 169,203 | No | Form 4 |
| AMPHAmphastar Pharmaceuticals, Inc. | Sep 16 | Sep 17 | M · derivative | 10,000 | $13.35 | $133,500 | 19,424 | No | Form 4 |
| AMPHAmphastar Pharmaceuticals, Inc. | Sep 2 | Sep 3 | S | 3,187 | $23.63 | Sale −$75,306 | 169,203 | No | Form 4 |
Published from this insider's public Form 4 filings on SEC EDGAR; the name is shown as filed. Named in a filing and want this page removed? See the privacy policy.