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NASDAQ:AMPH

Amphastar Pharmaceuticals Insider Trades

$18.12
+0.25 (+1.40 %)
(As of 11/27/2020 05:00 PM ET)
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Today's Range
$17.68
Now: $18.12
$18.35
50-Day Range
$17.87
MA: $19.85
$21.24
52-Week Range
$12.32
Now: $18.12
$22.69
Volume4,757 shs
Average Volume255,738 shs
Market Capitalization$860.77 million
P/E Ratio129.43
Dividend YieldN/A
Beta1.02

Insider Trades

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

Insider Ownership Percentage: 29.80%
Insider Buying (Last 12 Months): $20,260.00
Insider Selling (Last 12 Months): $4,327,080.04

Insider Buying and Selling by Quarter


Amphastar Pharmaceuticals (NASDAQ AMPH) Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
11/2/2020Floyd F PetersenDirectorSell500$19.84$9,920.0074,493  
9/1/2020Floyd F PetersenDirectorSell500$19.90$9,950.0075,493  
8/14/2020David MarisDirectorBuy1,000$20.26$20,260.0013,151  
8/14/2020William J PetersCFOSell5,512$20.36$112,224.3295,652  
8/11/2020Richard K PrinsDirectorSell6,000$20.33$121,980.0039,160  
8/3/2020Floyd F PetersenDirectorSell500$20.62$10,310.0075,993  
7/21/2020Yakob LiawatidewiEVPSell5,978$21.22$126,853.1650,182  
7/6/2020William J. PetersCFOSell13,656$22.00$300,432.00  
7/1/2020Floyd F PetersenDirectorSell500$22.27$11,135.0076,493  
6/9/2020Yakob LiawatidewiEVPSell23,405$20.12$470,908.6069,529  
6/3/2020Rong ZhouEVPSell13,163$18.82$247,727.66  
6/1/2020Floyd F PetersenDirectorSell500$18.97$9,485.0071,142  
5/27/2020Richard KooDirectorSell47,782$18.18$868,676.76295,201  
5/20/2020Howard LeeDirectorSell17,782$18.43$327,722.26145,863  
5/14/2020Michael A ZasloffDirectorSell14,832$18.00$266,976.0050,168  
5/12/2020Michael A ZasloffDirectorSell10,000$19.00$190,000.0045,336  
5/1/2020Floyd F PetersenDirectorSell500$16.66$8,330.0071,642  
4/1/2020Floyd F PetersenDirectorSell500$14.36$7,180.0072,142  
3/13/2020William J PetersCFOSell4,701$13.94$65,531.9476,011  
2/6/2020Jason B ShandellGeneral CounselSell21,933$19.83$434,931.39154,513  
1/21/2020William J. PetersCFOSell3,990$20.07$80,079.30  
1/8/2020Jason B ShandellGeneral CounselSell25,000$18.44$461,000.00163,898  
1/2/2020Floyd F PetersenDirectorSell1,000$19.14$19,140.0073,642  
12/18/2019Jason B ShandellGeneral CounselSell8,205$19.13$156,961.65138,898  
12/2/2019Floyd F PetersenDirectorSell500$19.25$9,625.0074,642  
11/1/2019Floyd F PetersenDirectorSell500$19.48$9,740.0075,142  
10/1/2019Floyd F PetersenDirectorSell500$19.92$9,960.0075,642  
9/18/2019Jason B ShandellGeneral CounselSell7,340$21.32$156,488.80147,103  
9/16/2019Floyd F PetersenDirectorSell500$21.75$10,875.0076,142  
9/16/2019William J PetersCFOSell9,800$21.76$213,248.0092,253  
9/13/2019Yakob LiawatidewiSVPSell3,000$21.45$64,350.0033,670  
9/11/2019Jack Y ZhangCEOSell300,000$20.82$6,246,000.002,147,316  
9/5/2019Yakob LiawatidewiSVPSell1,515$21.24$32,178.6036,670  
8/26/2019Richard K PrinsDirectorSell7,500$22.59$169,425.0043,191  
8/23/2019Richard K PrinsDirectorSell3,882$22.58$87,655.5643,191  
8/15/2019William J. PetersCFOSell4,942$21.00$103,782.00  
8/13/2019Richard K PrinsDirectorSell10,000$20.78$207,800.0049,309  
8/13/2019Yakob LiawatidewiSVPSell5,000$20.73$103,650.0047,188  
7/10/2019Jason B. ShandellInsiderSell6,615$20.31$134,350.65  
5/6/2019Rong ZhouEVPSell9,600$22.76$218,496.0066,707  
5/1/2019Jason B ShandellInsiderSell10,000$21.97$219,700.00  
4/16/2019Jason B ShandellGeneral CounselSell9,478$20.67$195,910.26159,947  
3/15/2019Jason B ShandellInsiderSell32,336$20.35$658,037.60160,490  
3/4/2019William J PetersCFOSell1,500$25.36$38,040.0077,050  
3/1/2019Jason B ShandellInsiderSell7,500$24.99$187,425.00175,818  
3/1/2019Rong ZhouEVPSell3,200$25.00$80,000.0055,230  
2/15/2019William J PetersCFOSell10,016$24.37$244,089.9285,566  
2/14/2019Jason B ShandellInsiderSell7,519$23.99$180,380.81175,837  
2/14/2019Yakob LiawatidewiSVPSell8,868$23.86$211,590.4839,883  
2/12/2019Yakob LiawatidewiSVPSell4,000$23.70$94,800.0039,883  
2/5/2019Rong ZhouEVPSell4,289$23.00$98,647.0056,319  
2/5/2019Yakob LiawatidewiSVPSell11,397$23.18$264,182.4647,280  
1/23/2019Jason B ShandellInsiderSell15,497$22.39$346,977.83168,518  
1/23/2019Yakob LiawatidewiSVPSell7,000$22.52$157,640.0040,463  
1/16/2019Yakob LiawatidewiSVPSell3,183$22.15$70,503.4537,471  
1/14/2019Yakob LiawatidewiSVPSell8$22.15$177.2037,471  
1/2/2019William J PetersCFOSell3,245$19.52$63,342.4075,550  
12/14/2018Richard K PrinsDirectorSell1,616$20.65$33,370.4033,818  
12/13/2018Jack Y ZhangCEOSell29,689$20.99$623,172.112,115,894  
12/13/2018Physics & Chemistry La AppliedMajor ShareholderSell133,915$21.29$2,851,050.357,398,090  
12/11/2018Jack Y ZhangCEOSell66,757$21.47$1,433,272.792,115,894  
12/11/2018Richard KooDirectorSell29,278$21.32$624,206.9689,263  
12/7/2018Howard LeeDirectorSell29,278$21.67$634,454.26133,381  
12/3/2018Jason B. ShandellInsiderSell16,630$22.44$373,177.20  
12/3/2018Rong ZhouEVPSell1,089$22.00$23,958.00  
12/3/2018William J. PetersCFOSell10,000$22.40$224,000.00133,381  
11/30/2018Yakob LiawatidewiSVPSell13,980$21.50$300,570.0048,963  
11/29/2018Richard K PrinsDirectorSell5,000$20.50$102,500.00  
11/28/2018Yakob LiawatidewiSVPSell1,520$20.49$31,144.8037,463  
11/23/2018Yakob LiawatidewiSVPSell1,299$20.26$26,317.7437,463  
11/14/2018Jason B ShandellInsiderSell16,015$20.41$326,866.15183,890  
11/14/2018Richard K PrinsDirectorSell5,000$20.23$101,150.0040,434  
11/12/2018William J PetersCFOSell38,484$20.74$798,158.16106,636  
11/9/2018Jason B ShandellGeneral CounselSell16,095$20.99$337,834.05204,805  
11/9/2018Rong ZhouEVPSell2,173$20.50$44,546.5054,392  
11/9/2018William J PetersCFOSell10,000$21.47$214,700.00106,636  
11/9/2018Yakob LiawatidewiSVPSell17,808$20.97$373,433.7646,763  
8/16/2018William J PetersCFOSell2,407$17.59$42,339.1386,836  
8/14/2018Richard K PrinsDirectorSell10,000$17.82$178,200.00  
7/11/2018Jason B. ShandellInsiderSell14,399$16.77$241,471.23  
7/9/2018William J. PetersCFOSell3,250$16.46$53,495.00  
6/12/2018Michael A ZasloffDirectorSell15,000$16.52$247,800.0029,845  
5/15/2018Jack Y ZhangCEOBuy25,000$16.08$402,000.002,065,619  
3/20/2018Jason B ShandellInsiderSell20,000$19.43$388,600.00251,372  
3/15/2018Richard K PrinsDirectorSell16,598$19.90$330,300.2045,442  
3/14/2018Jason B ShandellInsiderSell700$20.45$14,315.00  
3/13/2018William J PetersCFOSell19,801$20.10$398,000.10  
1/26/2018Jason B. ShandellInsiderSell18,627$19.42$361,736.34  
1/25/2018Jason B. ShandellGeneral CounselSell8,661$19.26$166,810.86  
12/19/2017Diane G GerstEVPSell523$19.48$10,188.0430,164  
12/14/2017Stephen B ShohetDirectorSell7,866$18.87$148,431.4231,982  
12/12/2017Diane G GerstEVPSell523$18.96$9,916.0830,687  
12/7/2017Stephen B ShohetDirectorSell7,862$18.34$144,189.0831,978  
12/1/2017William J. PetersCFOSell6,226$19.67$122,465.42  
11/30/2017Stephen B ShohetDirectorSell7,862$19.25$151,343.5031,978  
11/28/2017Diane G GerstEVPSell523$18.15$9,492.4531,210  
11/22/2017Stephen B ShohetDirectorSell7,862$18.94$148,906.2831,978  
11/21/2017Diane G GerstEVPSell523$18.81$9,837.6331,733  
11/16/2017Stephen B ShohetDirectorSell7,862$18.04$141,830.4831,978  
11/15/2017Diane G GerstEVPSell523$17.77$9,293.7132,256  
11/9/2017Stephen B ShohetDirectorSell7,862$18.55$145,840.1031,978  
11/7/2017Diane G GerstEVPSell523$17.93$9,377.3932,779  
11/2/2017Stephen B ShohetDirectorSell7,862$18.37$144,424.94  
10/26/2017Stephen B ShohetDirectorSell7,862$18.39$144,582.1831,978  
10/24/2017Diane G GerstEVPSell523$18.29$9,565.6733,302  
10/19/2017Stephen B ShohetDirectorSell7,862$18.34$144,189.0831,978  
10/17/2017Diane G GerstEVPSell523$18.48$9,665.0433,825  
10/13/2017William J PetersCFOSell3,026$18.56$56,162.56  
10/12/2017Stephen B ShohetDirectorSell7,862$18.73$147,255.26  
10/5/2017Diane G GerstEVPSell8,444$18.87$159,338.28  
10/4/2017Floyd F PetersenDirectorSell39,312$18.59$730,810.08  
10/2/2017Michael A ZasloffDirectorSell63,624$18.18$1,156,684.32101,879  
8/15/2017Richard K PrinsDirectorSell10,000$14.81$148,100.0033,844  
8/14/2017Richard K PrinsDirectorSell5,000$14.80$74,000.0033,844  
6/9/2017Richard K PrinsDirectorSell10,000$17.07$170,700.0028,844  
6/1/2017Michael A ZasloffDirectorSell15,000$17.01$255,150.0047,411  
5/31/2017Jason B ShandellDirectorSell11,482$16.92$194,275.44241,342  
5/11/2017Richard K PrinsDirectorSell7,500$15.43$115,725.0030,500  
1/3/2017Floyd F PetersenDirectorSell400$18.61$7,444.0058,717  
12/15/2016Diane G GerstEVPSell2,940$20.51$60,299.4026,195  
12/5/2016Rong ZhouEVPSell61$20.70$1,262.7036,991  
12/1/2016Floyd F PetersenDirectorSell400$20.26$8,104.0059,117  
11/28/2016Jason B ShandellInsiderSell26,335$20.48$539,340.80205,004  
11/15/2016Howard LeeDirectorSell37,994$20.65$784,576.10134,527  
10/3/2016Floyd F PetersenDirectorSell400$18.75$7,500.0059,917  
9/26/2016Jason B ShandellInsiderSell56,996$19.50$1,111,422.00259,957  
9/20/2016Jack Y ZhangCEOSell444,199$21.03$9,341,504.971,295,685  
9/8/2016Floyd F PetersenDirectorSell3,000$19.05$57,150.0060,317  
9/1/2016Howard LeeDirectorSell10,381$18.78$194,955.18125  
8/22/2016Jason B ShandellGeneral CounselSell10,000$19.95$199,500.00212,961  
8/19/2016Diane G GerstEVPSell24,046$19.28$463,606.8839,031  
8/18/2016Richard K PrinsDirectorSell3,086$19.62$60,547.3226,000  
8/17/2016Jason B ShandellInsiderSell5,987$18.86$112,914.82202,961  
8/16/2016Stephen B ShohetDirectorSell48,375$18.24$882,360.0028,653  
8/15/2016Michael A ZasloffDirectorSell48,375$18.15$878,006.2542,792  
8/12/2016William J PetersCFOSell1,027$18.19$18,681.1363,625  
8/11/2016Jason B ShandellPresidentSell5,636$18.01$101,504.36208,948  
8/11/2016Richard K PrinsDirectorSell13,993$18.03$252,293.7931,681  
7/18/2016William J PetersCFOSell2,297$17.76$40,794.7264,652  
6/15/2016Rong ZhouEVPSell1,551$15.85$24,583.3537,137  
6/13/2016Richard K PrinsDirectorSell7,500$15.94$119,550.0029,086  
6/9/2016Jason B ShandellPresidentSell9,904$16.43$162,722.72216,610  
6/2/2016William J PetersCFOSell2,297$16.00$36,752.0066,949  
5/25/2016Jason B ShandellPresidentSell1,074$15.60$16,754.40226,514  
5/18/2016Diane G GerstEVPSell1,427$13.97$19,935.1928,649  
5/17/2016Richard K PrinsDirectorSell3,200$13.56$43,392.0023,000  
4/19/2016Diane G GerstEVPSell21,244$12.89$273,835.1639,713  
4/18/2016Diane G GerstEVPSell15,637$12.83$200,622.7139,713  
3/17/2016Richard K PrinsDirectorSell2,400$11.25$27,000.0026,200  
12/17/2015Stephen B. ShohetDirectorSell30,770$14.19$436,626.3012,186  
12/16/2015Howard LeeDirectorSell38,462$14.34$551,545.08109,901  
12/16/2015Rong ZhouEVPSell772$14.29$11,031.8825,460  
12/11/2015Jack Y ZhangCEOSell63,300$14.25$902,025.00920,117  
12/8/2015Jack Y ZhangCEOSell68,117$14.71$1,002,001.07920,117  
12/3/2015Jack Y ZhangCEOSell38,583$15.45$596,107.35920,117  
8/18/2015Richard K PrinsDirectorSell9,100$14.66$133,406.00  
8/17/2015Richard K. PrinsDirectorSell5,400$14.70$79,380.0035,722  
7/17/2015Michael A ZasloffDirectorSell7,692$17.41$133,917.72  
6/17/2015Rong ZhouEVPSell1,000$16.48$16,480.00  
6/15/2015Jack Y ZhangCEOSell45,382$16.29$739,272.78  
6/12/2015Jack Y ZhangCEOSell160,495$16.23$2,604,833.85  
6/9/2015Jack Y ZhangCEOSell193,758$16.43$3,183,443.94  
5/22/2015Richard K PrinsDirectorSell29,452$14.77$435,006.04  
5/19/2015Richard K PrinsDirectorSell3,000$14.94$44,820.00  
4/9/2015Marilyn J PurchaseVPSell28,000$15.79$442,120.00  
4/8/2015Diane G GerstSVPSell10,000$15.79$157,900.00  
8/25/2014Howard LeeDirectorBuy6,000$10.84$65,040.00  
8/19/2014Michael A ZasloffDirectorBuy3,500$10.00$35,000.00  
8/18/2014Richard K PrinsDirectorBuy4,000$10.02$40,080.00  
8/15/2014Floyd F PetersenDirectorBuy3,200$10.35$33,120.00  
(Data available from 1/1/2013 forward)
This page was last updated on 11/30/2020 by MarketBeat.com Staff

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