Company · CIK 0001297184 · SIC 2834 — Pharmaceutical Preparations · Nasdaq
Amphastar Pharmaceuticals, Inc. · AMPH
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jan 27, 2015 AGForm 4 → | May 29, 8:22 pm EDT | Richard K PrinsDirector | 10,701 | — | — | 42,722 | — | plan? late |
| Jul 7, 2014 AFForm 4 → | Mar 30, 2015, 6:05 am EDT | Marilyn J. PurchaseCorp. Exec. VP of Operations | 15,804 | $9.54 | $16,763 | 44,902 | — | plan? late |
| Jul 7, 2014 AFForm 4 → | Mar 30, 2015, 6:02 am EDT | Jason B. ShandellPresident, Director | 57,690 | $9.43 | $70,948 | 170,076 | — | plan? late |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Mar 17, 2016 AForm 4 → | Mar 21, 8:07 pm EDT | William J PetersCFO, SVP & Treasurer | 119,201 | — | — | 119,201 | — | |
| Mar 17, 2016 AForm 4 → | Mar 21, 8:04 pm EDT | Jason B. ShandellPresident, Director | 225,153 | — | — | 225,153 | — | |
| Mar 17, 2016 AForm 4 → | Mar 21, 8:03 pm EDT | Jack Y. Zhang +1CEO & Chief Science Officer, Director, 10% Owner | 1,032,976 | — | — | 310,930 | — | |
| Dec 16, 2015 MForm 4 → | Dec 17, 7:24 pm EST | Michael A ZasloffDirector | 30,770 | — | — | 0 | — | |
| Dec 16, 2015 MForm 4 → | Dec 17, 7:21 pm EST | Stephen B. ShohetDirector | 30,770 | — | — | 0 | — | |
| Dec 15, 2015 MForm 4 → | Dec 17, 7:20 pm EST | Howard LeeDirector | 38,462 | — | — | 0 | — | |
| Nov 20, 2015 MForm 4 → | Nov 24, 4:05 pm EST | Floyd F. PetersenDirector | 38,462 | — | — | 0 | — | |
| Aug 17, 2015 MForm 4 → | Aug 19, 8:18 pm EDT | Jack Y. Zhang +1CEO & Chief Scientific Officer, Director, 10% Owner | 16,962 | — | — | 0 | — | |
| Aug 17, 2015 MForm 4 → | Aug 19, 8:05 pm EDT | Richard K PrinsDirector | 7,500 | — | — | 40,000 | — | |
| Jul 17, 2015 MForm 4 → | Jul 21, 7:55 pm EDT | Stephen B. ShohetDirector | 7,692 | — | — | 30,770 | — | |
| Jul 17, 2015 MForm 4 → | Jul 21, 7:53 pm EDT | Michael A ZasloffDirector | 7,692 | — | — | 30,770 | — | |
| Jun 15, 2015 AForm 4 → | Jun 17, 6:08 pm EDT | Diane G. GerstEVP, QA & Regulatory Affairs | 4,685 | — | — | 4,685 | — | |
| Jun 15, 2015 AForm 4 → | Jun 17, 6:06 pm EDT | Rong ZhouEVP, Production | 4,685 | — | — | 4,685 | — | |
| Jun 15, 2015 MForm 4 → | Jun 17, 6:01 pm EDT | Jack Y. Zhang +1CEO & Chief Science Officer, Director, 10% Owner | 50,061 | — | — | 8,481 | — | |
| Jun 10, 2015 MForm 4/A → | Feb 3, 2016, 7:41 pm EST | Jack Y. Zhang +1CEO & Chief Science Officer, Director, 10% Owner | 176,860 | — | — | 8,481 | — | |
| Jun 10, 2015 MForm 4 → | Jun 12, 9:30 pm EDT | Jack Y. Zhang +1CEO & Chief Science Officer, Director, 10% Owner | 176,860 | — | — | 8,481 | — | |
| Jun 5, 2015 MForm 4 → | Jun 9, 8:34 pm EDT | Jack Y. Zhang +1CEO & Chief Science Officer, Director, 10% Owner | 216,117 | — | — | 76,253 | — | |
| May 27, 2015 AForm 4 → | May 29, 8:26 pm EDT | Michael A ZasloffDirector | 47,782 | — | — | 47,782 | — | |
| May 27, 2015 AForm 4 → | May 29, 8:24 pm EDT | Stephen B. ShohetDirector | 47,782 | — | — | 47,782 | — | |
| May 27, 2015 AForm 4 → | May 29, 8:22 pm EDT | Richard K PrinsDirector | 47,782 | — | — | 47,782 | — | |
| May 27, 2015 AForm 4 → | May 29, 8:20 pm EDT | Floyd F. PetersenDirector | 47,782 | — | — | 47,782 | — | |
| May 27, 2015 AForm 4 → | May 29, 8:18 pm EDT | Howard LeeDirector | 47,782 | — | — | 47,782 | — | |
| May 27, 2015 AForm 4 → | May 29, 8:17 pm EDT | Richard KooDirector | 47,782 | — | — | 47,782 | — | |
| May 20, 2015 MForm 4 → | May 22, 7:51 pm EDT | Richard K PrinsDirector | 29,452 | — | — | 47,500 | — | |
| May 19, 2015 MForm 4 → | May 20, 4:30 pm EDT | Richard K PrinsDirector | 3,000 | — | — | 25,846 | — | |
| Apr 9, 2015 AForm 4 → | Apr 10, 7:31 pm EDT | Diane G. GerstCorp. SVP of Quality Assurance | 10,000 | — | — | 0 | — | |
| Apr 9, 2015 MForm 4 → | Apr 10, 7:29 pm EDT | Marilyn J. PurchaseCorp. Exec. VP of Operations | 28,000 | — | — | 0 | — | |
| Mar 26, 2015 AForm 4 → | Mar 30, 6:06 am EDT | Diane G. GerstCorp. SVP of Quality Assurance | 20,028 | — | — | 20,028 | — | |
| Mar 26, 2015 AForm 4 → | Mar 30, 6:05 am EDT | Marilyn J. PurchaseCorp. Exec. VP of Operations | 42,054 | — | — | 42,054 | — | |
| Mar 26, 2015 AForm 4 → | Mar 30, 6:03 am EDT | William J PetersCFO, SVP & Treasurer | 58,074 | — | — | 58,074 | — | |
| Mar 26, 2015 AForm 4 → | Mar 30, 6:02 am EDT | Jason B. ShandellPresident, Director | 150,183 | — | — | 150,183 | — | |
| Mar 26, 2015 AForm 4 → | Mar 30, 6:00 am EDT | Jack Y. Zhang +1CEO & Chief Science Officer, Director, 10% Owner | 1,095,559 | — | — | 327,647 | — |