We provide you with 20 years of free, institutional-grade data for AMPH stock, allowing you to gain comprehensive visibility into the fundamentals of the company. This in-depth information is essential for making informed investment decisions and understanding the financial health and performance of AMPH. Explore the full financial landscape of AMPH stock.
Total insider purchase within 3 month on this page: $0
Total insider selling within 3 month on this page: -$25,907
| Name | Action | Shares | Avg Price | Amount | Reported Date |
|---|---|---|---|---|---|
| Petersen Floyd F. | Sale | -500 | $30.98 | $15,492 | 2025-09-03 |
| Petersen Floyd F. | Sale | -500 | $20.83 | $10,416 | 2025-08-04 |
| Gaugh David Russell | Grant, award...etc | 6,304 | 2025-07-22 | ||
| Petersen Floyd F. | Sale | -500 | $23.47 | $11,734 | 2025-07-03 |
| Zhang Jack Y. | Derivatives Exercise | 200,000 | 2025-06-16 | ||
| Petersen Floyd F. | Grant, award...etc | 5,122 | 2025-06-04 | ||
| Petersen Floyd F. | Sale | -500 | $25.67 | $12,835 | 2025-06-04 |
| ZASLOFF MICHAEL A | Grant, award...etc | 5,122 | 2025-06-04 | ||
| PRINS RICHARD K | Grant, award...etc | 5,122 | 2025-06-04 | ||
| Lee Howard | Sale | -923 | $26.01 | $24,007 | 2025-06-04 |
| Lee Howard | Grant, award...etc | 5,122 | 2025-06-04 | ||
| Deflin Gayle | Grant, award...etc | 5,122 | 2025-06-04 | ||
| Gerst Diane G. | Grant, award...etc | 5,122 | 2025-06-04 | ||
| PETERS WILLIAM J | Sale | -273 | $24.79 | $6,768 | 2025-05-20 |
| Petersen Floyd F. | Sale | -500 | $24.08 | $12,041 | 2025-05-02 |
| Petersen Floyd F. | Sale | -500 | $28.38 | $14,190 | 2025-04-02 |
| Zhou Rong | Sale | -1,222 | $26.66 | $32,579 | 2025-03-18 |
| PETERS WILLIAM J | Sale | -4,972 | $26.66 | $132,554 | 2025-03-18 |
| Liawatidewi Yakob | Sale | -2,762 | $26.66 | $73,635 | 2025-03-18 |
| Zhang Jack Y. | Sale | -173,995 | $26.66 | $4,638,707 | 2025-03-18 |
| Zhang Jack Y. | Derivatives Exercise | 211,213 | 2025-03-18 | ||
| Zhang Jack Y. | Sale | -252,200 | $26.66 | $6,723,652 | 2025-03-18 |
| Zhang Jack Y. | Derivatives Exercise | 290,477 | 2025-03-18 | ||
| Liawatidewi Yakob | Grant, award...etc | 20,837 | 2025-03-12 | ||
| PETERS WILLIAM J | Grant, award...etc | 36,747 | 2025-03-12 | ||
| Zhang Jack Y. | Grant, award...etc | 48,996 | 2025-03-12 | ||
| Zhang Jack Y. | Grant, award...etc | 116,226 | 2025-03-12 | ||
| Zhou Rong | Sale | -1,354 | $28.32 | $38,345 | 2025-03-10 |
| PETERS WILLIAM J | Sale | -2,141 | $28.32 | $60,633 | 2025-03-10 |
| Zhang Jack Y. | Sale | -3,069 | $28.32 | $86,914 | 2025-03-10 |
| Zhang Jack Y. | Sale | -9,645 | $28.32 | $273,146 | 2025-03-10 |
| Liawatidewi Yakob | Sale | -1,141 | $28.32 | $32,313 | 2025-03-10 |
| Petersen Floyd F. | Sale | -1,000 | $27.99 | $27,986 | 2025-03-07 |
| Zhang Jack Y. | Sale | -2,426 | $27.62 | $67,006 | 2025-03-06 |
| Zhang Jack Y. | Sale | -5,753 | $27.62 | $158,898 | 2025-03-06 |
| Liawatidewi Yakob | Sale | -963 | $27.62 | $26,598 | 2025-03-06 |
| Zhou Rong | Sale | -1,121 | $27.62 | $30,962 | 2025-03-06 |
| PETERS WILLIAM J | Sale | -5,970 | $27.54 | $164,405 | 2025-03-06 |
| PETERS WILLIAM J | Derivatives Exercise | 7,490 | 2025-03-06 | ||
| Zhou Rong | Sale | -15,000 | $44.42 | $666,375 | 2024-12-16 |
| Zhou Rong | Derivatives Exercise | 15,000 | 2024-12-16 | ||
| PRINS RICHARD K | Sale | -10,000 | $43.77 | $437,702 | 2024-12-11 |
| PRINS RICHARD K | Derivatives Exercise | 10,000 | 2024-12-11 | ||
| PRINS RICHARD K | Sale | -5,000 | $48.8 | $243,986 | 2024-11-13 |
| PRINS RICHARD K | Derivatives Exercise | 2,500 | 2024-11-13 | ||
| Zhou Rong | Sale | -6,893 | $48.88 | $336,930 | 2024-11-13 |
| Zhou Rong | Derivatives Exercise | 6,893 | 2024-11-13 | ||
| Liawatidewi Yakob | Sale | -5,214 | $52.05 | $271,389 | 2024-11-08 |
| Liawatidewi Yakob | Derivatives Exercise | 5,214 | 2024-11-08 | ||
| PETERS WILLIAM J | Sale | -7,426 | $52.05 | $386,523 | 2024-11-08 |
| PETERS WILLIAM J | Derivatives Exercise | 7,426 | 2024-11-08 | ||
| Zhang Jack Y. | Derivatives Exercise | 100,000 | 2024-09-16 | ||
| Petersen Floyd F. | Sale | -3,000 | $46.47 | $139,417 | 2024-09-06 |
| PRINS RICHARD K | Sale | -17,101 | $43.07 | $736,550 | 2024-08-13 |
| PRINS RICHARD K | Derivatives Exercise | 17,101 | 2024-08-13 | ||
| PETERS WILLIAM J | Sale | -10,282 | $44.23 | $454,773 | 2024-08-02 |
| PETERS WILLIAM J | Derivatives Exercise | 10,282 | 2024-08-02 | ||
| PETERS WILLIAM J | Sale | -3,596 | $40.85 | $146,885 | 2024-06-28 |
| Zhang Jack Y. | Derivatives Exercise | 100,000 | 2024-06-11 | ||
| Petersen Floyd F. | Sale | -3,000 | $41.4 | $124,200 | 2024-06-11 |
| Liawatidewi Yakob | Sale | -272 | $42.22 | $11,484 | 2024-06-05 |
| PRINS RICHARD K | Grant, award...etc | 3,076 | 2024-06-05 | ||
| ZASLOFF MICHAEL A | Grant, award...etc | 3,076 | 2024-06-05 | ||
| Deflin Gayle | Grant, award...etc | 3,076 | 2024-06-05 | ||
| Lee Howard | Sale | -579 | $42.04 | $24,341 | 2024-06-05 |
| Lee Howard | Grant, award...etc | 3,076 | 2024-06-05 | ||
| Petersen Floyd F. | Grant, award...etc | 3,076 | 2024-06-05 | ||
| Petersen Floyd F. | Sale | -500 | $42.65 | $21,326 | 2024-06-05 |
| Gerst Diane G. | Grant, award...etc | 3,076 | 2024-06-05 | ||
| PETERS WILLIAM J | Sale | -387 | $43.48 | $16,827 | 2024-05-21 |
| Petersen Floyd F. | Sale | -500 | $41.67 | $20,837 | 2024-05-02 |
| Petersen Floyd F. | Sale | -500 | $43.43 | $21,714 | 2024-04-02 |
| PETERS WILLIAM J | Sale | -11,645 | $43.05 | $501,317 | 2024-03-19 |
| Zhang Jack Y. | Sale | -209,710 | $43.05 | $9,028,016 | 2024-03-19 |
| Zhang Jack Y. | Derivatives Exercise | 310,930 | 2024-03-19 | ||
| Zhang Jack Y. | Sale | -424,489 | $43.05 | $18,274,251 | 2024-03-19 |
| Zhang Jack Y. | Derivatives Exercise | 722,046 | 2024-03-19 | ||
| Liawatidewi Yakob | Sale | -4,424 | $43.05 | $190,453 | 2024-03-19 |
| Zhou Rong | Sale | -1,961 | $43.05 | $84,421 | 2024-03-19 |
| PETERS WILLIAM J | Sale | -20,326 | $46.3 | $940,994 | 2024-03-08 |
| PETERS WILLIAM J | Derivatives Exercise | 8,826 | 2024-03-08 | ||
| Zhang Jack Y. | Sale | -2,990 | $46.31 | $138,467 | 2024-03-08 |
| Zhang Jack Y. | Sale | -7,031 | $46.31 | $325,606 | 2024-03-08 |
| Liawatidewi Yakob | Sale | -1,221 | $46.31 | $56,545 | 2024-03-08 |
| PETERS WILLIAM J | Grant, award...etc | 19,440 | 2024-03-06 | ||
| ZASLOFF MICHAEL A | Sale | -12,500 | $47.06 | $588,283 | 2024-03-06 |
| Liawatidewi Yakob | Grant, award...etc | 10,754 | 2024-03-06 | ||
| Zhang Jack Y. | Grant, award...etc | 27,110 | 2024-03-06 | ||
| Zhang Jack Y. | Grant, award...etc | 64,310 | 2024-03-06 | ||
| Petersen Floyd F. | Sale | -500 | $45.6 | $22,802 | 2024-03-04 |
| Petersen Floyd F. | Sale | -500 | $53.07 | $26,534 | 2024-02-02 |
| Luo Mary Z. | Sale | -131,386 | $54.32 | $7,137,203 | 2024-01-11 |
| Luo Mary Z. | Sale | -219,800 | $56.98 | $12,524,600 | 2024-01-10 |
| Petersen Floyd F. | Sale | -500 | $60.56 | $30,279 | 2024-01-03 |
| Zhou Rong | Sale | -7,830 | $58.58 | $458,681 | 2023-12-05 |
| Zhou Rong | Derivatives Exercise | 7,830 | 2023-12-05 | ||
| Petersen Floyd F. | Sale | -500 | $57.24 | $28,620 | 2023-12-04 |
| PRINS RICHARD K | Sale | -4,000 | $55.86 | $223,446 | 2023-11-20 |
| PETERS WILLIAM J | Sale | -59,250 | $54.76 | $3,244,684 | 2023-11-16 |
| PETERS WILLIAM J | Derivatives Exercise | 59,250 | 2023-11-16 | ||
| PRINS RICHARD K | Sale | -5,000 | $52.5 | $262,500 | 2023-11-15 |
| Deflin Gayle | Sale | -4,163 | $55.45 | $230,838 | 2023-11-15 |
| Petersen Floyd F. | Sale | -500 | $45.3 | $22,651 | 2023-11-02 |
| Petersen Floyd F. | Sale | -500 | $45.78 | $22,890 | 2023-10-03 |
| PETERS WILLIAM J | Sale | -60,743 | $51.75 | $3,143,165 | 2023-09-08 |
| PETERS WILLIAM J | Derivatives Exercise | 56,500 | 2023-09-08 | ||
| Liawatidewi Yakob | Sale | -28,816 | $53.13 | $1,530,994 | 2023-08-29 |
| Liawatidewi Yakob | Derivatives Exercise | 28,816 | 2023-08-29 | ||
| PRINS RICHARD K | Sale | -2,000 | $52.5 | $105,006 | 2023-08-21 |
| PRINS RICHARD K | Sale | -4,163 | $57.39 | $238,911 | 2023-08-16 |
| ZASLOFF MICHAEL A | Sale | -12,759 | $57.22 | $730,025 | 2023-08-16 |
| Zhou Rong | Derivatives Exercise | 9,651 | 2023-06-21 | ||
| Zhou Rong | Sale | -5,000 | $51.79 | $258,947 | 2023-06-20 |
| Zhou Rong | Derivatives Exercise | 19,377 | 2023-06-20 | ||
| PETERS WILLIAM J | Sale | -36,868 | $48.79 | $1,798,790 | 2023-06-20 |
| PETERS WILLIAM J | Derivatives Exercise | 36,868 | 2023-06-20 | ||
| Zhou Rong | Sale | -5,000 | $48.24 | $241,200 | 2023-06-14 |
| Zhou Rong | Derivatives Exercise | 5,000 | 2023-06-14 | ||
| Lee Howard | Sale | -375 | $45.67 | $17,126 | 2023-06-12 |
| Lee Howard | Grant, award...etc | 2,716 | 2023-06-07 | ||
| ZASLOFF MICHAEL A | Grant, award...etc | 2,716 | 2023-06-07 | ||
| Deflin Gayle | Grant, award...etc | 2,716 | 2023-06-07 | ||
| Gerst Diane G. | Grant, award...etc | 2,716 | 2023-06-07 | ||
| Petersen Floyd F. | Grant, award...etc | 2,716 | 2023-06-07 | ||
| PRINS RICHARD K | Grant, award...etc | 2,716 | 2023-06-07 | ||
| Liawatidewi Yakob | Sale | -378 | $46.7 | $17,653 | 2023-06-06 |
| Lee Howard | Sale | -16,679 | $45.02 | $750,960 | 2023-06-05 |
| Lee Howard | Derivatives Exercise | 16,679 | 2023-06-05 | ||
| PETERS WILLIAM J | Sale | -11,000 | $46.35 | $509,859 | 2023-06-05 |
| PETERS WILLIAM J | Derivatives Exercise | 11,000 | 2023-06-05 | ||
| PETERS WILLIAM J | Sale | -10,878 | $44.35 | $482,439 | 2023-05-22 |
| PETERS WILLIAM J | Derivatives Exercise | 10,500 | 2023-05-22 | ||
| Zhou Rong | Sale | -10,000 | $44.2 | $442,050 | 2023-05-19 |
| Zhou Rong | Derivatives Exercise | 10,000 | 2023-05-19 | ||
| Deflin Gayle | Sale | -4,519 | $44.01 | $198,888 | 2023-05-19 |
| Petersen Floyd F. | Sale | -5,000 | $43.13 | $215,655 | 2023-05-18 |
| Deflin Gayle | Sale | -1,500 | $43.15 | $64,728 | 2023-05-17 |
| ZASLOFF MICHAEL A | Sale | -7,500 | $42.18 | $316,335 | 2023-05-16 |
The information provided in this report about AMPH stock is taken from www.sec.gov and many other data providers. While we have conducted our best efforts to ensure that the parsed data is accurate, we cannot guarantee its accuracy. Please use caution and understand that any consequences of its use are your own responsibility.
Amphastar Pharmaceuticals, Inc(NASDAQ:AMPH)Â 
Amphastar Pharmaceuticals, Inc., a specialty pharmaceutical company, develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products in the United States, China, and France. The company operates through two segments, Finished Pharmaceutical Products...
Website: http://www.amphastar.com
Founded: 1996
Full Time Employees: 2,027
Sector: Healthcare
Industry: Drug Manufacturers-Specialty & Generic