Zhou Rong - Insider Non-Derivative Transactions at Amphastar Pharmaceuticals, Inc. (AMPH) - (SEC)
Updated on January 3, 2026.
According to recent SEC insider information filed on Dec 17, 2025, Zhou Rong's relationship to Amphastar Pharmaceuticals, Inc. (AMPH) is Officer (SENIOR EVP, PRODUCTION CENTER), and currently has 147,830 shares of Common Stock, and 137,497 shares of Common Srock.
The charts below show the number of shares owned, and the table shows the recent insider transactions.
You can see similar information for other AMPH insiders.
Related Topics: SEC Topic List.
Data Source: SEC.
Zhou Rong - Insider Non-Derivative Transactions of AMPH Common Stock
Zhou Rong - Insider Non-Derivative Transactions of AMPH Common Srock
Zhou Rong - Insider Non-Derivative Transactions at AMPH
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| Date | Transaction | No. of Shares | Price Per Share | Shares Owned After Transactions |
|---|---|---|---|---|
| Dec 18, 2025 | Sell -- (Common Stock) | 9787 | 26.2 | 138043 |
| Dec 18, 2025 | M -- (Common Stock) | 9787 | 11.33 | 147830 |
| Mar 18, 2025 | F -- (Common Srock) | 1967 | 27.69 | 137497 |
| Mar 16, 2025 | F -- (Common Stock) | 1222 | 26.66 | 139464 |
| Mar 11, 2025 | Acquisition -- (Common Srock) | 24692 | 0 | 140686 |
| Mar 7, 2025 | F -- (Common Stock) | 1354 | 28.32 | 115994 |
| Mar 5, 2025 | F -- (Common Stock) | 1121 | 27.62 | 117348 |
| Dec 14, 2024 | Sell -- (Common Stock) | 8000 | 45.23 | 118469 |
| Dec 14, 2024 | M -- (Common Stock) | 8000 | 11.33 | 126469 |
| Dec 13, 2024 | Sell -- (Common Stock) | 7000 | 44.43 | 118469 |
| Dec 13, 2024 | M -- (Common Stock) | 7000 | 11.33 | 125469 |
| Nov 13, 2024 | Sell -- (Common Stock) | 6893 | 48.88 | 118388 |
| Nov 13, 2024 | M -- (Common Stock) | 6893 | 14.95 | 125281 |
| Sep 14, 2024 | Sell -- (Common Srock) | 3000 | 48.26 | 118388 |
| Sep 14, 2024 | M -- (Common Srock) | 3000 | 14.95 | 121388 |
| Aug 27, 2024 | Sell -- (Common Srock) | 4000 | 48.35 | 118388 |
| Aug 27, 2024 | M -- (Common Srock) | 4000 | 14.95 | 122388 |
| Mar 18, 2024 | F -- (Common Stock) | 1961 | 43.05 | 118016 |
| Mar 17, 2024 | F -- (Common Srock) | 2355 | 43.05 | 119977 |
| Mar 16, 2024 | F -- (Common Srock) | 1219 | 43.05 | 122332 |
| Mar 7, 2024 | F -- (Common Srock) | 1390 | 46.31 | 123551 |
| Mar 5, 2024 | Acquisition -- (Common Srock) | 12521 | 0 | 124941 |
| Dec 5, 2023 | Sell -- (Common Stock) | 3514 | 59.58 | 112420 |
| Dec 5, 2023 | M -- (Common Stock) | 3514 | 16.19 | 115934 |
| Dec 2, 2023 | Sell -- (Common Stock) | 4316 | 58.58 | 112420 |
| Dec 2, 2023 | M -- (Common Stock) | 4316 | 14.4 | 116736 |
| Jun 21, 2023 | M -- (Common Stock) | 9651 | 11.33 | 112341 |
| Jun 16, 2023 | Sell -- (Common Stock) | 5000 | 51.79 | 96888 |
| Jun 16, 2023 | M -- (Common Stock) | 4631 | 14.95 | 101519 |
| Jun 16, 2023 | M -- (Common Stock) | 13575 | 14.4 | 101888 |
| Jun 16, 2023 | M -- (Common Stock) | 1171 | 16.19 | 102690 |
| Jun 14, 2023 | Sell -- (Common Stock) | 5000 | 48.24 | 88313 |
| Jun 14, 2023 | M -- (Common Stock) | 5000 | 14.4 | 93313 |
| May 19, 2023 | Sell -- (Common Stock) | 10000 | 44.21 | 87598 |
| May 19, 2023 | M -- (Common Stock) | 10000 | 14.4 | 97598 |
| Mar 18, 2023 | F -- (Common Stock) | 1901 | 36.29 | 87598 |
| Mar 17, 2023 | F -- (Common Stock) | 2283 | 37.6 | 89499 |
| Mar 16, 2023 | F -- (Common Stock) | 2057 | 36.84 | 91782 |
| Mar 7, 2023 | Acquisition -- (Common Stock) | 15129 | 0 | 93839 |
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