Amphastar Pharmaceuticals (AMPH) Insider Trading & Ownership

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$40.78

+1.16 (+2.93%)

(As of 04/15/2024 ET)

Current Insider Ownership Percentage: 27.80%
Number Of Insiders Buying (Last 12 Months): 0
Number Of Insiders Selling (Last 12 Months): 8
Amount Of Insider Selling (Last 12 Months): $27.80 M

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AMPH Insider Buying and Selling by Quarter

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Amphastar Pharmaceuticals Insider and Congressional Trades History

Transaction Type

Time Frame

Start Date

End Date

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Transaction Date	Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction
4/1/2024	Floyd F Petersen	Director	Sell	500	$43.43	$21,715.00
3/5/2024	Michael A Zasloff	Director	Sell	12,500	$47.18	$589,750.00
3/1/2024	Floyd F Petersen	Director	Sell	500	$45.69	$22,845.00
2/1/2024	Floyd F Petersen	Director	Sell	500	$53.10	$26,550.00
1/10/2024	Mary Z Luo	COO	Sell	131,386	$54.59	$7,172,361.74
1/8/2024	Mary Z Luo	COO	Sell	133,644	$58.93	$7,875,640.92
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1/2/2024	Floyd F Petersen	Director	Sell	500	$61.37	$30,685.00
12/4/2023	Rong Zhou	EVP	Sell	3,514	$59.58	$209,364.12
12/1/2023	Floyd F Petersen	Director	Sell	500	$57.90	$28,950.00
12/1/2023	Rong Zhou	EVP	Sell	4,316	$58.58	$252,831.28
11/17/2023	Richard K Prins	Director	Sell	4,000	$55.86	$223,440.00
11/13/2023	Richard K Prins	Director	Sell	5,000	$52.50	$262,500.00
11/1/2023	Floyd F Petersen	Director	Sell	500	$45.30	$22,650.00
10/2/2023	Floyd F Petersen	Director	Sell	500	$45.78	$22,890.00
9/6/2023	William J Peters	CFO	Sell	60,743	$51.75	$3,143,450.25
8/28/2023	Yakob Liawatidewi	EVP	Sell	28,816	$53.13	$1,530,994.08
8/18/2023	Richard K Prins	Director	Sell	2,000	$52.50	$105,000.00
8/15/2023	Michael A Zasloff	Director	Sell	12,759	$57.22	$730,069.98
6/15/2023	Rong Zhou	EVP	Sell	5,000	$51.79	$258,950.00
6/15/2023	William J Peters	CFO	Sell	36,868	$50.85	$1,874,737.80
6/13/2023	Rong Zhou	EVP	Sell	5,000	$48.24	$241,200.00
6/2/2023	William J Peters	CFO	Sell	11,000	$46.35	$509,850.00
6/1/2023	Howard Lee	Director	Sell	16,679	$45.02	$750,888.58
5/18/2023	Rong Zhou	EVP	Sell	10,000	$44.20	$442,000.00
5/18/2023	William J Peters	CFO	Sell	10,500	$44.35	$465,675.00
5/17/2023	Floyd F Petersen	Director	Sell	5,000	$43.13	$215,650.00
5/15/2023	Michael A Zasloff	Director	Sell	7,500	$42.18	$316,350.00
5/12/2023	Richard K Prins	Director	Sell	5,000	$42.06	$210,300.00
4/17/2023	William J Peters	CFO	Sell	5,632	$42.35	$238,515.20

(Data available from 1/1/2013 forward)

AMPH Insider Trading Activity - Frequently Asked Questions

Who is on Amphastar Pharmaceuticals's Insider Roster?: The list of insiders at Amphastar Pharmaceuticals includes Diane G Gerst, Floyd F Petersen, Howard Lee, Jack Y Zhang, Mary Z Luo, Michael A Zasloff, Richard K Prins, Richard Koo, Rong Zhou, William J Peters, and Yakob Liawatidewi. Learn more on insiders at AMPH.
What percentage of Amphastar Pharmaceuticals stock is owned by insiders?: 27.80% of Amphastar Pharmaceuticals stock is owned by insiders. Learn more on AMPH's insider holdings.

Which Amphastar Pharmaceuticals insiders have been selling company stock?: The following insiders have sold AMPH shares in the last 24 months: Diane G Gerst ($175,196.06), Floyd F Petersen ($886,184.82), Howard Lee ($1,489,085.47), Jack Y Zhang ($2,288,950.44), Mary Z Luo ($15,048,002.66), Michael A Zasloff ($2,002,632.49), Richard K Prins ($801,240.00), Rong Zhou ($1,404,345.40), William J Peters ($8,511,359.23), and Yakob Liawatidewi ($2,724,897.40).
How much insider selling is happening at Amphastar Pharmaceuticals?: Insiders have sold a total of 729,009 Amphastar Pharmaceuticals shares in the last 24 months for a total of $35,331,893.97 sold.

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This page (NASDAQ:AMPH) was last updated on 4/16/2024 by MarketBeat.com Staff

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Amphastar Pharmaceuticals (AMPH) Insider Trading & Ownership

AMPH Insider Buying and Selling by Quarter

Amphastar Pharmaceuticals Insider and Congressional Trades History

AMPH Insider Trading Activity - Frequently Asked Questions

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Amphastar Pharmaceuticals (AMPH) Insider Trading & Ownership

Amphastar Pharmaceuticals (NASDAQ:AMPH) Insider Buying and Selling Activity

AMPH Insider Buying and Selling by Quarter

Amphastar Pharmaceuticals Insider and Congressional Trades History

AMPH Insider Trading Activity - Frequently Asked Questions

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