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.
"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 |
| 2021-06-01 Sale | 2021-06-02 7:34 pm | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 25,827 | $19.28 | $498,009 | 263,270 (Indirect Direct) | View |
| 2020-05-27 Sale | 2020-05-28 4:05 pm | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 47,782 | $18.18 | $868,892 | 257,419 (Indirect Direct) | View |
| 2018-12-11 Sale | 2018-12-12 8:39 pm | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 29,278 | $21.32 | $624,075 | 251,928 (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 |
| 2021-06-07 Option Award | 2021-06-08 8:55 pm | N/A 2029-06-07 | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 23,201 | $0 | 286,471 (Direct) | View |
| 2021-06-01 Exercise | 2021-06-02 7:34 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 25,827 | $16.43 | 263,270 (Direct) | View |
| 2021-06-01 Exercise | 2021-06-02 7:34 pm | N/A 2021-06-09 | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 25,827 | $0 | 263,270 (Direct) | View |
| 2020-06-08 Option Award | 2020-06-09 8:21 pm | N/A 2028-06-08 | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 21,855 | $0 | 279,274 (Direct) | View |
| 2020-05-27 Exercise | 2020-05-28 4:05 pm | N/A 2020-05-27 | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 47,782 | $0 | 257,419 (Direct) | View |
| 2020-05-27 Exercise | 2020-05-28 4:05 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 47,782 | $15.11 | 257,419 (Direct) | View |
| 2019-06-12 Option Award | 2019-06-13 7:57 pm | N/A 2027-06-12 | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 19,406 | $0 | 271,334 (Direct) | View |
| 2018-12-11 Exercise | 2018-12-12 8:39 pm | N/A 2018-12-20 | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 29,278 | $0 | 251,928 (Direct) | View |
| 2018-12-11 Exercise | 2018-12-12 8:39 pm | N/A N/A | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 29,278 | $14.66 | 251,928 (Direct) | View |
| 2018-06-07 Option Award | 2018-06-11 8:05 pm | N/A 2026-06-07 | Amphastar Pharmaceuticals Inc. | AMPH | Koo Richard Director | 23,269 | $0 | 268,607 (Direct) | View |