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Amphastar Pharmaceuticals, Inc. (AMPH)
After hours:
Insider transactions
Currency in USD| Insider purchases - Last 6 months | Shares | Trans |
|---|---|---|
| Purchases | 1,184,767 | 8 |
| Sales | 396,652 | 12 |
| Net shares purchased (sold) | 788,115 | 20 |
| Total insider shares held | 10.76M | N/A |
| % net shares purchased (sold) | 7.90% | N/A |
| Net institutional purchases - Prior quarter to latest quarter | Shares |
|---|---|
| Net shares purchased (sold) | N/A |
| % change in institutional shares held | N/A |
Insider transactions reported - last two years
| Insider | Transaction | Type | Value | Date | Shares |
|---|---|---|---|---|---|
PETERSEN FLOYD F | Sale at price 41.67 per share. | Direct | 20,837 | 01 May 2024 | 500 |
PETERSEN FLOYD F | Sale at price 43.43 per share. | Direct | 21,714 | 01 Apr 2024 | 500 |
ZHANG JACK YONGFENG | Conversion of Exercise of derivative security at price 12.46 per share. | Indirect | 12,870,881 | 15 Mar 2024 | 1,032,976 |
PETERS WILLIAM J | Sale at price 46.30 - 48.00 per share. | Direct | 842,883 | 06 Mar 2024 | 18,136 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 11.33 per share. | Direct | 99,999 | 06 Mar 2024 | 8,826 |
ZASLOFF MICHAEL A | Sale at price 47.06 - 47.53 per share. | Direct | 589,724 | 05 Mar 2024 | 12,500 |
PETERS WILLIAM J | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 04 Mar 2024 | 19,440 |
ZHANG JACK YONGFENG | Stock Award(Grant) at price 0.00 per share. | Indirect | 0 | 04 Mar 2024 | 91,420 |
ZHOU RONG | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 04 Mar 2024 | 12,521 |
LIAWATIDEWI YAKOB | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 04 Mar 2024 | 10,754 |
PETERSEN FLOYD F | Sale at price 45.60 - 46.53 per share. | Direct | 22,847 | 01 Mar 2024 | 500 |
PETERSEN FLOYD F | Sale at price 53.07 - 53.64 per share. | Direct | 26,548 | 01 Feb 2024 | 500 |
LUO MARY Z | Sale at price 54.32 - 57.00 per share. | Direct | 7,171,768 | 10 Jan 2024 | 131,386 |
LUO MARY Z | Sale at price 56.70 - 63.27 per share. | Direct | 12,798,708 | 09 Jan 2024 | 219,800 |
PETERSEN FLOYD F | Sale at price 60.56 - 61.70 per share. | Direct | 30,683 | 02 Jan 2024 | 500 |
ZHOU RONG | Sale at price 58.58 - 59.58 per share. | Direct | 462,195 | 04 Dec 2023 | 7,830 |
ZHOU RONG | Conversion of Exercise of derivative security at price 14.40 - 16.19 per share. | Direct | 119,042 | 04 Dec 2023 | 7,830 |
PETERSEN FLOYD F | Sale at price 57.24 - 58.15 per share. | Direct | 28,952 | 01 Dec 2023 | 500 |
PRINS RICHARD K | Stock Gift at price 0.00 per share. | Direct | 0 | 17 Nov 2023 | 1,000 |
PRINS RICHARD K | Sale at price 55.86 per share. | Direct | 223,446 | 17 Nov 2023 | 4,000 |
PETERS WILLIAM J | Sale at price 54.76 - 56.53 per share. | Direct | 3,298,475 | 14 Nov 2023 | 59,250 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 13.03 - 20.23 per share. | Direct | 925,028 | 14 Nov 2023 | 59,250 |
DEFLIN GAYLE | Sale at price 55.45 per share. | Direct | 230,838 | 14 Nov 2023 | 4,163 |
PRINS RICHARD K | Sale at price 52.50 per share. | Direct | 262,500 | 13 Nov 2023 | 5,000 |
PETERSEN FLOYD F | Sale at price 45.30 per share. | Direct | 22,651 | 01 Nov 2023 | 500 |
PETERSEN FLOYD F | Sale at price 45.78 per share. | Direct | 22,890 | 02 Oct 2023 | 500 |
PETERS WILLIAM J | Sale at price 51.75 - 52.26 per share. | Direct | 3,143,195 | 06 Sept 2023 | 60,743 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 13.03 - 20.23 per share. | Direct | 956,795 | 06 Sept 2023 | 56,500 |
LIAWATIDEWI YAKOB | Sale at price 53.13 per share. | Direct | 1,530,994 | 28 Aug 2023 | 28,816 |
LIAWATIDEWI YAKOB | Conversion of Exercise of derivative security at price 13.03 - 20.23 per share. | Direct | 428,095 | 28 Aug 2023 | 28,816 |
PRINS RICHARD K | Sale at price 52.50 per share. | Direct | 105,006 | 18 Aug 2023 | 2,000 |
ZASLOFF MICHAEL A | Sale at price 57.22 per share. | Direct | 730,025 | 15 Aug 2023 | 12,759 |
PRINS RICHARD K | Sale at price 57.39 per share. | Direct | 238,911 | 15 Aug 2023 | 4,163 |
ZHOU RONG | Conversion of Exercise of derivative security at price 11.33 per share. | Direct | 109,346 | 20 Jun 2023 | 9,651 |
PETERS WILLIAM J | Sale at price 48.79 - 52.79 per share. | Direct | 1,874,790 | 15 Jun 2023 | 36,868 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 19.79 per share. | Direct | 729,618 | 15 Jun 2023 | 36,868 |
ZHOU RONG | Sale at price 51.79 per share. | Direct | 258,946 | 15 Jun 2023 | 5,000 |
ZHOU RONG | Conversion of Exercise of derivative security at price 14.40 - 16.19 per share. | Direct | 283,672 | 15 Jun 2023 | 19,377 |
ZHOU RONG | Sale at price 48.24 per share. | Direct | 241,200 | 13 Jun 2023 | 5,000 |
ZHOU RONG | Conversion of Exercise of derivative security at price 14.40 per share. | Direct | 72,000 | 13 Jun 2023 | 5,000 |
ZASLOFF MICHAEL A | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 05 Jun 2023 | 2,716 |
PRINS RICHARD K | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 05 Jun 2023 | 2,716 |
LEE HOWARD S | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 05 Jun 2023 | 2,716 |
PETERSEN FLOYD F | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 05 Jun 2023 | 2,716 |
GERST DIANE G. | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 05 Jun 2023 | 2,716 |
DEFLIN GAYLE | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 05 Jun 2023 | 2,716 |
PETERS WILLIAM J | Sale at price 46.35 per share. | Direct | 509,859 | 02 Jun 2023 | 11,000 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 13.35 per share. | Direct | 146,850 | 02 Jun 2023 | 11,000 |
LEE HOWARD S | Sale at price 45.02 per share. | Direct | 750,960 | 01 Jun 2023 | 16,679 |
LEE HOWARD S | Conversion of Exercise of derivative security at price 16.69 per share. | Direct | 278,373 | 01 Jun 2023 | 16,679 |
PETERS WILLIAM J | Sale at price 44.35 per share. | Direct | 465,675 | 18 May 2023 | 10,500 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 13.35 per share. | Direct | 140,175 | 18 May 2023 | 10,500 |
ZHOU RONG | Sale at price 44.20 per share. | Direct | 442,050 | 18 May 2023 | 10,000 |
ZHOU RONG | Conversion of Exercise of derivative security at price 14.40 per share. | Direct | 144,000 | 18 May 2023 | 10,000 |
DEFLIN GAYLE | Sale at price 44.01 per share. | Direct | 198,888 | 18 May 2023 | 4,519 |
PETERSEN FLOYD F | Sale at price 43.13 per share. | Direct | 215,655 | 17 May 2023 | 5,000 |
ZASLOFF MICHAEL A | Sale at price 42.18 per share. | Direct | 316,335 | 15 May 2023 | 7,500 |
PRINS RICHARD K | Sale at price 42.06 - 43.50 per share. | Direct | 427,824 | 15 May 2023 | 10,000 |
PRINS RICHARD K | Conversion of Exercise of derivative security at price 16.69 per share. | Direct | 166,900 | 15 May 2023 | 10,000 |
DEFLIN GAYLE | Sale at price 43.15 per share. | Direct | 64,728 | 15 May 2023 | 1,500 |
PRINS RICHARD K | Stock Gift at price 0.00 per share. | Direct | 0 | 12 May 2023 | 3,000 |
PETERS WILLIAM J | Sale at price 42.35 per share. | Direct | 238,515 | 17 Apr 2023 | 5,632 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 13.35 per share. | Direct | 75,187 | 17 Apr 2023 | 5,632 |
PETERS WILLIAM J | Sale at price 42.35 per share. | Direct | 206,160 | 13 Apr 2023 | 4,868 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 13.35 per share. | Direct | 64,988 | 13 Apr 2023 | 4,868 |
LIAWATIDEWI YAKOB | Sale at price 41.00 - 42.00 per share. | Direct | 477,748 | 13 Apr 2023 | 11,494 |
LIAWATIDEWI YAKOB | Conversion of Exercise of derivative security at price 20.23 per share. | Direct | 232,524 | 13 Apr 2023 | 11,494 |
PETERS WILLIAM J | Sale at price 40.35 per share. | Direct | 404,791 | 10 Apr 2023 | 10,032 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 13.35 per share. | Direct | 133,927 | 10 Apr 2023 | 10,032 |
LIAWATIDEWI YAKOB | Sale at price 40.00 per share. | Direct | 200,000 | 10 Apr 2023 | 5,000 |
LIAWATIDEWI YAKOB | Conversion of Exercise of derivative security at price 20.23 per share. | Direct | 101,150 | 10 Apr 2023 | 5,000 |
PETERSEN FLOYD F | Sale at price 37.72 per share. | Direct | 18,519 | 03 Apr 2023 | 491 |
ZHANG JACK YONGFENG | Stock Gift at price 0.00 per share. | Indirect | 0 | 16 Mar 2023 | 114,730 |
PETERS WILLIAM J | Sale at price 36.43 per share. | Direct | 465,472 | 15 Mar 2023 | 12,776 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 14.95 per share. | Direct | 99,986 | 15 Mar 2023 | 6,688 |
PETERS WILLIAM J | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 06 Mar 2023 | 23,925 |
ZHANG JACK YONGFENG | Stock Award(Grant) at price 0.00 per share. | Indirect | 0 | 06 Mar 2023 | 115,684 |
ZHOU RONG | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 06 Mar 2023 | 15,129 |
LIAWATIDEWI YAKOB | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 06 Mar 2023 | 12,752 |
PETERS WILLIAM J | Sale at price 36.33 per share. | Direct | 398,685 | 01 Mar 2023 | 10,974 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 11.33 per share. | Direct | 124,335 | 01 Mar 2023 | 10,974 |
PETERSEN FLOYD F | Sale at price 33.70 - 37.25 per share. | Direct | 18,349 | 01 Mar 2023 | 500 |
PETERSEN FLOYD F | Sale at price 30.35 per share. | Direct | 15,176 | 01 Feb 2023 | 500 |
PETERSEN FLOYD F | Sale at price 27.94 per share. | Direct | 13,971 | 03 Jan 2023 | 500 |
PETERSEN FLOYD F | Sale at price 30.13 per share. | Direct | 15,067 | 01 Dec 2022 | 500 |
PETERSEN FLOYD F | Sale at price 31.13 per share. | Direct | 15,565 | 01 Nov 2022 | 500 |
PETERSEN FLOYD F | Sale at price 28.59 per share. | Direct | 14,296 | 03 Oct 2022 | 500 |
PETERSEN FLOYD F | Sale at price 29.44 per share. | Direct | 14,722 | 01 Sept 2022 | 500 |
PETERS WILLIAM J | Sale at price 38.35 per share. | Direct | 383,500 | 09 Aug 2022 | 10,000 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 13.35 per share. | Direct | 133,500 | 09 Aug 2022 | 10,000 |
LIAWATIDEWI YAKOB | Sale at price 32.06 - 38.00 per share. | Direct | 287,943 | 09 Aug 2022 | 8,055 |
LIAWATIDEWI YAKOB | Conversion of Exercise of derivative security at price 19.79 per share. | Direct | 159,408 | 09 Aug 2022 | 8,055 |
PETERSEN FLOYD F | Sale at price 37.48 per share. | Direct | 18,738 | 01 Aug 2022 | 500 |
GERST DIANE G. | Sale at price 37.23 per share. | Direct | 56,597 | 18 Jul 2022 | 1,520 |
GERST DIANE G. | Conversion of Exercise of derivative security at price 20.08 per share. | Direct | 30,522 | 18 Jul 2022 | 1,520 |
LIAWATIDEWI YAKOB | Sale at price 35.94 - 36.97 per share. | Direct | 397,083 | 15 Jul 2022 | 10,837 |
LIAWATIDEWI YAKOB | Conversion of Exercise of derivative security at price 19.79 per share. | Direct | 214,464 | 15 Jul 2022 | 10,837 |
GERST DIANE G. | Sale at price 36.26 per share. | Direct | 55,145 | 11 Jul 2022 | 1,521 |
GERST DIANE G. | Conversion of Exercise of derivative security at price 20.08 per share. | Direct | 30,542 | 11 Jul 2022 | 1,521 |
GERST DIANE G. | Sale at price 35.00 per share. | Direct | 63,460 | 05 Jul 2022 | 1,813 |
GERST DIANE G. | Conversion of Exercise of derivative security at price 20.08 per share. | Direct | 36,405 | 05 Jul 2022 | 1,813 |
PETERSEN FLOYD F | Sale at price 34.78 per share. | Direct | 17,391 | 01 Jul 2022 | 500 |
PETERS WILLIAM J | Sale at price 34.95 per share. | Direct | 642,591 | 30 Jun 2022 | 18,386 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 14.95 per share. | Direct | 274,871 | 30 Jun 2022 | 18,386 |
GERST DIANE G. | Sale at price 35.00 per share. | Direct | 180,110 | 30 Jun 2022 | 5,146 |
GERST DIANE G. | Conversion of Exercise of derivative security at price 20.03 - 20.08 per share. | Direct | 103,165 | 30 Jun 2022 | 5,146 |
PETERS WILLIAM J | Sale at price 32.05 per share. | Direct | 176,682 | 17 Jun 2022 | 5,512 |
ZASLOFF MICHAEL A | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 10 Jun 2022 | 4,163 |
PRINS RICHARD K | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 10 Jun 2022 | 4,163 |
LEE HOWARD S | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 10 Jun 2022 | 4,163 |
PETERSEN FLOYD F | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 10 Jun 2022 | 4,163 |
GERST DIANE G. | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 10 Jun 2022 | 4,163 |
DEFLIN GAYLE | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 10 Jun 2022 | 4,163 |
LEE HOWARD S | Sale at price 37.79 per share. | Direct | 388,859 | 06 Jun 2022 | 10,291 |
LEE HOWARD S | Conversion of Exercise of derivative security at price 17.11 per share. | Direct | 176,079 | 06 Jun 2022 | 10,291 |
PETERSEN FLOYD F | Sale at price 36.79 - 37.67 per share. | Direct | 18,499 | 01 Jun 2022 | 500 |
LEE HOWARD S | Sale at price 34.93 per share. | Direct | 349,323 | 23 May 2022 | 10,000 |
LEE HOWARD S | Conversion of Exercise of derivative security at price 17.11 per share. | Direct | 171,100 | 23 May 2022 | 10,000 |
ZHANG JACK YONGFENG | Sale at price 34.21 per share. | Direct | 364,365 | 20 May 2022 | 10,650 |
ZHANG JACK YONGFENG | Sale at price 33.76 - 35.78 per share. | Direct | 3,697,861 | 19 May 2022 | 108,776 |
PETERSEN FLOYD F | Sale at price 35.05 per share. | Direct | 347,826 | 18 May 2022 | 9,924 |
PETERSEN FLOYD F | Conversion of Exercise of derivative security at price 17.11 per share. | Direct | 347,179 | 18 May 2022 | 20,291 |
PRINS RICHARD K | Stock Gift at price 0.00 per share. | Direct | 0 | 17 May 2022 | 2,000 |
ZHANG JACK YONGFENG | Sale at price 35.58 - 36.41 per share. | Direct | 4,234,897 | 17 May 2022 | 118,445 |
ZASLOFF MICHAEL A | Sale at price 35.61 per share. | Direct | 366,500 | 16 May 2022 | 10,291 |
ZASLOFF MICHAEL A | Conversion of Exercise of derivative security at price 17.11 per share. | Direct | 176,079 | 16 May 2022 | 10,291 |
PETERSEN FLOYD F | Sale at price 35.15 - 35.52 per share. | Direct | 10,378 | 02 May 2022 | 295 |
PETERSEN FLOYD F | Sale at price 36.59 - 37.35 per share. | Direct | 18,345 | 01 Apr 2022 | 500 |
ZASLOFF MICHAEL A | Sale at price 33.71 per share. | Direct | 337,069 | 16 Mar 2022 | 10,000 |
ZASLOFF MICHAEL A | Conversion of Exercise of derivative security at price 17.11 per share. | Direct | 171,100 | 16 Mar 2022 | 10,000 |
PETERS WILLIAM J | Sale at price 33.93 - 34.36 per share. | Direct | 1,724,427 | 16 Mar 2022 | 50,777 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 14.40 per share. | Direct | 731,189 | 16 Mar 2022 | 50,777 |
PRINS RICHARD K | Sale at price 34.02 per share. | Direct | 340,208 | 15 Mar 2022 | 10,000 |
PRINS RICHARD K | Conversion of Exercise of derivative security at price 17.11 per share. | Direct | 171,100 | 15 Mar 2022 | 10,000 |
PETERS WILLIAM J | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 15 Mar 2022 | 21,991 |
PETERS WILLIAM J | Sale at price 34.46 per share. | Direct | 272,248 | 15 Mar 2022 | 7,900 |
ZHANG JACK YONGFENG | Stock Award(Grant) at price 0.00 per share. | Indirect | 0 | 15 Mar 2022 | 109,326 |
ZHOU RONG | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 15 Mar 2022 | 13,658 |
LIAWATIDEWI YAKOB | Stock Award(Grant) at price 0.00 per share. | Direct | 0 | 15 Mar 2022 | 11,514 |
PETERS WILLIAM J | Sale at price 29.35 per share. | Direct | 382,313 | 07 Mar 2022 | 13,026 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 13.35 per share. | Direct | 173,897 | 07 Mar 2022 | 13,026 |
PETERSEN FLOYD F | Sale at price 27.27 per share. | Direct | 13,635 | 01 Mar 2022 | 500 |
PETERS WILLIAM J | Sale at price 27.95 - 28.95 per share. | Direct | 654,850 | 25 Feb 2022 | 23,000 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 14.95 per share. | Direct | 343,850 | 25 Feb 2022 | 23,000 |
ZHOU RONG | Sale at price 28.77 per share. | Direct | 381,087 | 25 Feb 2022 | 13,246 |
ZHOU RONG | Conversion of Exercise of derivative security at price 10.93 per share. | Direct | 76,510 | 25 Feb 2022 | 7,000 |
PETERS WILLIAM J | Sale at price 26.95 per share. | Direct | 269,500 | 08 Feb 2022 | 10,000 |
PETERS WILLIAM J | Conversion of Exercise of derivative security at price 14.95 per share. | Direct | 149,500 | 08 Feb 2022 | 10,000 |
ZHOU RONG | Sale at price 26.77 per share. | Direct | 187,390 | 08 Feb 2022 | 7,000 |
ZHOU RONG | Conversion of Exercise of derivative security at price 10.93 per share. | Direct | 76,510 | 08 Feb 2022 | 7,000 |
