Amphastar Pharmaceuticals, Inc. engages in developing, manufacturing, marketing, and selling technically challenging generic and proprietary injectable, inhalation, and intranasal products, and insulin active pharmaceutical ingredient. It operates through Finished Pharmaceutical Products and Active Pharmaceutical Ingredients Products segments. The Finished Pharmaceutical Products segment manufactures, markets, and distributes Primatene Mist, enoxaparin, naloxone, phytonadione, lidocaine, and other critical and non-critical care drugs. The Active Pharmaceutical Ingredients Products segment offers RHI API and porcine insulin API for external customers and internal product development. The company was founded by Zi-Ping Luo and Yong Feng Zhang on February 29, 1996 and is headquartered in Rancho Cucamonga, CA. |
Insider Trading |
Relationship |
Date |
Transaction |
Cost |
#Shares |
Value ($) |
#Shares Total |
SEC Form 4 |
Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Sep 13 '24 | Option Exercise | 14.95 | 3,000 | 44,850 | 121,388 | Sep 17 04:11 PM | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Sep 13 '24 | Sale | 48.26 | 3,000 | 144,784 | 118,388 | Sep 17 04:11 PM | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Sep 13 '24 | Option Exercise | 14.69 | 100,000 | 1,469,000 | 2,633,554 | Sep 16 07:09 PM | Petersen Floyd F. | Director | Sep 05 '24 | Sale | 46.47 | 3,000 | 139,417 | 75,409 | Sep 06 07:48 PM | Floyd Petersen | Director | Sep 05 '24 | Proposed Sale | 46.00 | 5,000 | 230,000 | | Sep 05 04:48 PM | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Aug 26 '24 | Option Exercise | 14.95 | 4,000 | 59,800 | 122,388 | Aug 27 09:33 PM | Zhou Rong | SENIOR EVP, PRODUCTION CENTER | Aug 26 '24 | Sale | 48.35 | 4,000 | 193,400 | 118,388 | Aug 27 09:33 PM | Rong Zhou | Director | Aug 26 '24 | Proposed Sale | 47.00 | 13,893 | 652,971 | | Aug 26 05:26 PM | PRINS RICHARD K | Director | Aug 12 '24 | Option Exercise | 19.83 | 17,101 | 339,170 | 51,072 | Aug 13 05:58 PM | PRINS RICHARD K | Director | Aug 12 '24 | Sale | 43.07 | 17,101 | 736,550 | 33,971 | Aug 13 05:58 PM | Richard Prins | Director | Aug 12 '24 | Proposed Sale | 44.00 | 17,101 | 752,444 | | Aug 12 05:25 PM | PETERS WILLIAM J | CFO, EVP & TREASURER | Jul 31 '24 | Option Exercise | 20.23 | 10,282 | 208,005 | 104,385 | Aug 02 04:32 PM | PETERS WILLIAM J | CFO, EVP & TREASURER | Jul 31 '24 | Sale | 44.23 | 10,282 | 454,773 | 94,103 | Aug 02 04:32 PM | PETERS WILLIAM J | Officer | Jul 31 '24 | Proposed Sale | 44.23 | 10,282 | 454,772 | | Jul 31 05:24 PM | PETERS WILLIAM J | CFO, EVP & TREASURER | Jun 27 '24 | Sale | 40.93 | 3,596 | 147,169 | 94,103 | Jun 28 04:26 PM | Zhang Jack Y. | CEO & CHIEF SCIENTIFIC OFFICER | Jun 10 '24 | Option Exercise | 14.69 | 100,000 | 1,469,000 | 2,533,554 | Jun 11 06:35 PM | Petersen Floyd F. | Director | Jun 10 '24 | Sale | 41.40 | 3,000 | 124,200 | 78,409 | Jun 11 06:32 PM | Petersen Floyd F. | Director | Jun 03 '24 | Sale | 42.65 | 500 | 21,326 | 78,333 | Jun 05 06:54 PM | Petersen Floyd F. | Director | May 01 '24 | Sale | 41.67 | 500 | 20,837 | 78,833 | May 02 04:56 PM | Petersen Floyd F. | Director | Apr 01 '24 | Sale | 43.43 | 500 | 21,714 | 79,333 | Apr 02 09:31 PM | Zhang Jack Y. | CEO & Chief Scientific Officer | Mar 15 '24 | Option Exercise | 12.46 | 722,046 | 8,996,693 | 2,858,043 | Mar 19 06:55 PM | Zhang Jack Y. | CEO & Chief Scientific Officer | Mar 15 '24 | Option Exercise | 12.46 | 310,930 | 3,874,188 | 1,439,466 | Mar 19 06:55 PM | PETERS WILLIAM J | CFO, EVP & TREASURER | Mar 06 '24 | Option Exercise | 11.33 | 8,826 | 99,999 | 129,626 | Mar 08 04:52 PM | PETERS WILLIAM J | CFO, EVP & TREASURER | Mar 06 '24 | Sale | 46.48 | 18,136 | 842,883 | 111,490 | Mar 08 04:52 PM | ZASLOFF MICHAEL A | Director | Mar 05 '24 | Sale | 47.18 | 12,500 | 589,724 | 21,326 | Mar 06 05:57 PM | Petersen Floyd F. | Director | Mar 01 '24 | Sale | 45.69 | 500 | 22,847 | 79,833 | Mar 04 08:35 PM | Petersen Floyd F. | Director | Feb 01 '24 | Sale | 53.10 | 500 | 26,548 | 80,333 | Feb 02 07:37 PM | Luo Mary Z. | COO,Chief Scientist & Chairman | Jan 10 '24 | Sale | 54.59 | 131,386 | 7,171,768 | 1,104,416 | Jan 11 04:37 PM | Luo Mary Z. | COO,Chief Scientist & Chairman | Jan 08 '24 | Sale | 58.93 | 133,644 | 7,875,476 | 1,321,958 | Jan 10 06:27 PM | Luo Mary Z. | COO,Chief Scientist & Chairman | Jan 09 '24 | Sale | 57.14 | 86,156 | 4,923,232 | 1,235,802 | Jan 10 06:27 PM | Petersen Floyd F. | Director | Jan 02 '24 | Sale | 61.37 | 500 | 30,683 | 80,833 | Jan 03 07:25 PM | Zhou Rong | Senior EVP, Production Center | Dec 01 '23 | Option Exercise | 14.40 | 4,316 | 62,150 | 116,736 | Dec 05 06:25 PM | Zhou Rong | Senior EVP, Production Center | Dec 04 '23 | Option Exercise | 16.19 | 3,514 | 56,892 | 115,934 | Dec 05 06:25 PM | Zhou Rong | Senior EVP, Production Center | Dec 01 '23 | Sale | 58.58 | 4,316 | 252,831 | 112,420 | Dec 05 06:25 PM | Zhou Rong | Senior EVP, Production Center | Dec 04 '23 | Sale | 59.58 | 3,514 | 209,364 | 112,420 | Dec 05 06:25 PM | Petersen Floyd F. | Director | Dec 01 '23 | Sale | 57.90 | 500 | 28,952 | 81,333 | Dec 04 08:49 PM | PRINS RICHARD K | Director | Nov 17 '23 | Sale | 55.86 | 4,000 | 223,446 | 31,895 | Nov 20 05:23 PM | PETERS WILLIAM J | CFO, EVP & Treasurer | Nov 14 '23 | Option Exercise | 15.61 | 59,250 | 925,028 | 160,610 | Nov 16 04:05 PM | PETERS WILLIAM J | CFO, EVP & Treasurer | Nov 14 '23 | Sale | 55.67 | 59,250 | 3,298,475 | 101,360 | Nov 16 04:05 PM | PRINS RICHARD K | Director | Nov 13 '23 | Sale | 52.50 | 5,000 | 262,500 | 35,895 | Nov 15 04:31 PM | Deflin Gayle | Director | Nov 14 '23 | Sale | 55.45 | 4,163 | 230,838 | 2,716 | Nov 15 04:30 PM |
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