Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2024-12-12 Sale | 2024-12-16 5:22 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 15,000 | $44.85 | $672,815 | 250,711 (Indirect Direct) | View |
| 2024-11-12 Sale | 2024-11-13 8:26 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 6,893 | $48.88 | $336,930 | 223,056 (Indirect Direct) | View |
| 2024-09-13 Sale | 2024-09-17 4:11 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 3,000 | $48.26 | $144,785 | 229,949 (Indirect Direct) | View |
| 2024-08-26 Sale | 2024-08-27 9:33 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 4,000 | $48.35 | $193,400 | 232,949 (Indirect Direct) | View |
| 2023-12-01 Sale | 2023-12-05 6:25 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong Senior EVP, Production Center | 7,830 | $59.03 | $462,195 | 217,088 (Indirect Direct) | View |
| 2023-06-15 Sale | 2023-06-20 4:05 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 5,000 | $51.79 | $258,947 | 229,081 (Indirect Direct) | View |
| 2023-06-13 Sale | 2023-06-14 5:36 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 5,000 | $48.24 | $241,200 | 210,872 (Indirect Direct) | View |
| 2023-05-18 Sale | 2023-05-19 6:36 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 10,000 | $44.2 | $442,050 | 215,157 (Indirect Direct) | View |
| 2022-02-25 Sale | 2022-03-01 4:07 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 13,246 | $28.77 | $381,087 | 174,975 (Indirect Direct) | View |
| 2022-02-08 Sale | 2022-02-09 9:07 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 7,000 | $26.77 | $187,390 | 188,221 (Indirect Direct) | View |
| 2022-01-10 Sale | 2022-01-11 8:28 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 20,928 | $25.36 | $530,684 | 195,221 (Indirect Direct) | View |
| 2021-11-11 Sale | 2021-11-12 7:44 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 7,813 | $21.67 | $169,308 | 187,789 (Indirect Direct) | View |
| 2021-08-02 Sale | 2021-08-04 4:05 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 9,123 | $21.24 | $193,734 | 195,602 (Indirect Direct) | View |
| 2021-07-26 Sale | 2021-07-27 6:46 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 6,000 | $20.87 | $125,220 | 204,725 (Indirect Direct) | View |
| 2021-07-20 Sale | 2021-07-22 4:13 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 5,187 | $20.57 | $106,697 | 210,725 (Indirect Direct) | View |
| 2021-06-08 Sale | 2021-06-10 4:45 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 12,912 | $19.43 | $250,829 | 190,912 (Indirect Direct) | View |
| 2021-05-13 Sale | 2021-05-17 7:38 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 18,119 | $19.71 | $357,170 | 222,114 (Indirect Direct) | View |
| 2020-06-03 Sale | 2020-06-05 4:15 pm | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 22,969 | $18.98 | $435,855 | 192,822 (Indirect Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2024-12-12 Exercise | 2024-12-16 5:22 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 15,000 | $11.33 | 250,711 (Direct) | View |
| 2024-12-12 Exercise | 2024-12-16 5:22 pm | N/A 2026-03-17 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 15,000 | $0 | 250,711 (Direct) | View |
| 2024-11-12 Exercise | 2024-11-13 8:26 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 6,893 | $14.95 | 223,056 (Direct) | View |
| 2024-11-12 Exercise | 2024-11-13 8:26 pm | N/A 2025-03-26 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 6,893 | $0 | 223,056 (Direct) | View |
| 2024-09-13 Exercise | 2024-09-17 4:11 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 3,000 | $14.95 | 229,949 (Direct) | View |
| 2024-09-13 Exercise | 2024-09-17 4:11 pm | N/A 2025-03-26 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 3,000 | $0 | 229,949 (Direct) | View |
| 2024-08-26 Exercise | 2024-08-27 9:33 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 4,000 | $14.95 | 232,949 (Direct) | View |
| 2024-08-26 Exercise | 2024-08-27 9:33 pm | N/A 2025-03-26 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 4,000 | $0 | 232,949 (Direct) | View |
| 2024-03-15 Tax Withholding | 2024-03-19 5:15 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 5,535 | $43.05 | 222,684 (Direct) | View |
| 2024-03-06 Tax Withholding | 2024-03-08 4:47 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 1,390 | $46.31 | 228,219 (Direct) | View |
| 2024-03-04 Option Award | 2024-03-06 5:51 pm | N/A 2034-03-04 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong SENIOR EVP, PRODUCTION CENTER | 38,899 | $0 | 255,987 (Direct) | View |
| 2023-12-04 Exercise | 2023-12-05 6:25 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong Senior EVP, Production Center | 3,514 | $16.19 | 217,088 (Direct) | View |
| 2023-12-01 Exercise | 2023-12-05 6:25 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong Senior EVP, Production Center | 4,316 | $14.4 | 217,088 (Direct) | View |
| 2023-12-01 Exercise | 2023-12-05 6:25 pm | N/A 2024-04-14 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong Senior EVP, Production Center | 7,830 | $0 | 217,088 (Direct) | View |
| 2023-06-20 Exercise | 2023-06-21 5:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 9,651 | $11.33 | 241,796 (Direct) | View |
| 2023-06-20 Exercise | 2023-06-21 5:05 pm | N/A 2026-03-17 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 9,651 | $0 | 241,796 (Direct) | View |
| 2023-06-15 Exercise | 2023-06-20 4:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 4,631 | $14.95 | 229,081 (Direct) | View |
| 2023-06-15 Exercise | 2023-06-20 4:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 1,171 | $16.19 | 229,081 (Direct) | View |
| 2023-06-15 Exercise | 2023-06-20 4:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 13,575 | $14.4 | 229,081 (Direct) | View |
| 2023-06-15 Exercise | 2023-06-20 4:05 pm | N/A 2024-04-14 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 19,377 | $0 | 229,081 (Direct) | View |
| 2023-06-13 Exercise | 2023-06-14 5:36 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 5,000 | $14.4 | 210,872 (Direct) | View |
| 2023-06-13 Exercise | 2023-06-14 5:36 pm | N/A 2024-04-14 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 5,000 | $0 | 210,872 (Direct) | View |
| 2023-05-18 Exercise | 2023-05-19 6:36 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 10,000 | $14.4 | 215,157 (Direct) | View |
| 2023-05-18 Exercise | 2023-05-19 6:36 pm | N/A 2024-04-14 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 10,000 | $0 | 215,157 (Direct) | View |
| 2023-03-17 Tax Withholding | 2023-03-20 8:04 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 1,901 | $36.29 | 192,266 (Direct) | View |
| 2023-03-16 Tax Withholding | 2023-03-20 8:04 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 2,283 | $37.6 | 192,266 (Direct) | View |
| 2023-03-15 Tax Withholding | 2023-03-17 7:04 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 2,057 | $36.84 | 196,450 (Direct) | View |
| 2023-03-06 Option Award | 2023-03-08 4:06 pm | N/A 2033-03-06 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 47,011 | $0 | 230,389 (Direct) | View |
| 2022-03-16 Tax Withholding | 2022-03-18 7:01 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 2,283 | $34.22 | 182,251 (Direct) | View |
| 2022-03-17 Tax Withholding | 2022-03-18 7:01 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 2,447 | $34.18 | 182,251 (Direct) | View |
| 2022-03-15 Tax Withholding | 2022-03-17 5:07 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 1,652 | $34.74 | 218,497 (Direct) | View |
| 2022-03-15 Option Award | 2022-03-17 5:07 pm | N/A 2032-03-15 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 45,174 | $0 | 218,497 (Direct) | View |
| 2022-02-25 Exercise | 2022-03-01 4:07 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 7,000 | $10.93 | 174,975 (Direct) | View |
| 2022-02-25 Exercise | 2022-03-01 4:07 pm | N/A 2023-07-30 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 7,000 | $0 | 174,975 (Direct) | View |
| 2022-02-08 Exercise | 2022-02-09 9:07 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 7,000 | $10.93 | 188,221 (Direct) | View |
| 2022-02-08 Exercise | 2022-02-09 9:07 pm | N/A 2023-07-30 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 7,000 | $0 | 188,221 (Direct) | View |
| 2022-01-10 Exercise | 2022-01-11 8:28 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 14,000 | $10.93 | 195,221 (Direct) | View |
| 2022-01-10 Exercise | 2022-01-11 8:28 pm | N/A 2023-07-30 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 14,000 | $0 | 195,221 (Direct) | View |
| 2021-11-11 Exercise | 2021-11-12 7:44 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 7,813 | $10.48 | 187,789 (Direct) | View |
| 2021-11-11 Exercise | 2021-11-12 7:44 pm | N/A 2022-11-07 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 7,813 | $0 | 187,789 (Direct) | View |
| 2021-08-02 Exercise | 2021-08-04 4:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 6,000 | $10.48 | 195,602 (Direct) | View |
| 2021-08-02 Exercise | 2021-08-04 4:05 pm | N/A 2022-11-07 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 6,000 | $0 | 195,602 (Direct) | View |
| 2021-07-26 Exercise | 2021-07-27 6:46 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 6,000 | $10.48 | 204,725 (Direct) | View |
| 2021-07-26 Exercise | 2021-07-27 6:46 pm | N/A 2022-11-07 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 6,000 | $0 | 204,725 (Direct) | View |
| 2021-07-20 Exercise | 2021-07-22 4:13 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 5,187 | $10.48 | 210,725 (Direct) | View |
| 2021-07-20 Exercise | 2021-07-22 4:13 pm | N/A 2022-11-07 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 5,187 | $0 | 210,725 (Direct) | View |
| 2021-06-08 Exercise | 2021-06-10 4:45 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 8,180 | $14.23 | 190,912 (Direct) | View |
| 2021-06-08 Exercise | 2021-06-10 4:45 pm | N/A 2021-12-22 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 8,180 | $0 | 190,912 (Direct) | View |
| 2021-05-13 Exercise | 2021-05-17 7:38 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 11,820 | $14.23 | 222,114 (Direct) | View |
| 2021-05-13 Exercise | 2021-05-17 7:38 pm | N/A 2021-12-22 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 11,820 | $0 | 222,114 (Direct) | View |
| 2021-03-16 Tax Withholding | 2021-03-18 8:52 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 3,303 | $18.44 | 252,554 (Direct) | View |
| 2021-03-17 Option Award | 2021-03-18 8:52 pm | N/A 2031-03-17 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 73,605 | $0 | 252,554 (Direct) | View |
| 2021-03-15 Tax Withholding | 2021-03-17 8:00 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 1,652 | $19.15 | 182,252 (Direct) | View |
| 2020-06-03 Exercise | 2020-06-05 4:15 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 20,000 | $11.41 | 192,822 (Direct) | View |
| 2020-06-03 Exercise | 2020-06-05 4:15 pm | N/A 2021-03-08 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 20,000 | $0 | 192,822 (Direct) | View |
| 2020-03-17 Tax Withholding | 2020-03-18 5:34 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 992 | $14.5 | 247,381 (Direct) | View |
| 2020-03-16 Option Award | 2020-03-18 5:34 pm | N/A 2030-03-16 | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 88,222 | $0 | 247,381 (Direct) | View |
| 2020-03-16 Tax Withholding | 2020-03-18 5:34 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 1,020 | $13.03 | 247,381 (Direct) | View |
| 2020-03-15 Tax Withholding | 2020-03-17 8:11 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Zhou Rong EVP, Production Center | 1,653 | $14.19 | 161,171 (Direct) | View |