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AMPH Insider Trading

Insider Trading Chart
Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 27.80%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $8,909,699.70

Amphastar Pharmaceuticals Insider Trading History Chart

Amphastar Pharmaceuticals Share Price & Price History

^$29.18

▲ +0.49 (1.71%)

As of 11/25/2022 01:00 AM ET

Days: 30 | 90 | 365

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Amphastar Pharmaceuticals Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
10/3/2022	Floyd F. Petersen	Director	Sell	500	$28.59	$14,295.00	88,108
8/9/2022	William J. Peters	CFO	Sell	10,000	$38.35	$383,500.00	100,480
8/9/2022	Yakob Liawatidewi	EVP	Sell	3,055	$39.00	$119,145.00	61,607
8/1/2022	Floyd F. Petersen	Director	Sell	500	$37.48	$18,740.00	89,108
7/18/2022	Diane G Gerst	Director	Sell	1,520	$37.23	$56,589.60	12,842
7/15/2022	Yakob Liawatidewi	EVP	Sell	10,837	$36.64	$397,067.68	61,607
7/11/2022	Diane G Gerst	Director	Sell	1,521	$36.26	$55,151.46	12,842
7/5/2022	Diane G Gerst	Director	Sell	1,813	$35.00	$63,455.00	12,842
7/1/2022	Floyd F. Petersen	Director	Sell	500	$34.78	$17,390.00	89,608
6/30/2022	William J. Peters	CFO	Sell	18,386	$34.95	$642,590.70	100,480
6/17/2022	William J. Peters	CFO	Sell	5,512	$32.05	$176,659.60	100,480
6/6/2022	Howard Lee	Director	Sell	10,291	$37.79	$388,896.89	138,776
6/1/2022	Floyd F. Petersen	Director	Sell	500	$37.00	$18,500.00	85,945
5/23/2022	Howard Lee	Director	Sell	10,000	$34.93	$349,300.00	138,776
5/18/2022	Floyd F. Petersen	Director	Sell	9,924	$35.05	$347,836.20	86,445
5/18/2022	Jack Y Zhang	CEO	Sell	67,046	$34.14	$2,288,950.44	2,156,523
5/16/2022	Michael A. Zasloff	Director	Sell	10,291	$35.61	$366,462.51	47,206
5/2/2022	Floyd F. Petersen	Director	Sell	295	$35.18	$10,378.10	76,078
4/1/2022	Floyd F. Petersen	Director	Sell	500	$36.69	$18,345.00	76,373
3/16/2022	Michael A. Zasloff	Director	Sell	10,000	$33.71	$337,100.00
3/15/2022	William J. Peters	CFO	Sell	7,900	$34.46	$272,234.00
3/1/2022	Floyd F. Petersen	Director	Sell	500	$27.27	$13,635.00
2/8/2022	Rong Zhou	EVP	Sell	7,000	$26.77	$187,390.00
2/8/2022	William J. Peters	CFO	Sell	10,000	$26.95	$269,500.00
2/1/2022	Floyd F. Petersen	Director	Sell	500	$24.08	$12,040.00
1/10/2022	Rong Zhou	EVP	Sell	20,928	$25.36	$530,734.08
1/10/2022	William J. Peters	CFO	Sell	16,000	$25.40	$406,400.00
1/7/2022	William J. Peters	CFO	Sell	31,776	$24.43	$776,287.68
1/3/2022	Floyd F. Petersen	Director	Sell	500	$23.22	$11,610.00
12/22/2021	Floyd F. Petersen	Director	Sell	1,000	$22.50	$22,500.00
12/21/2021	William J. Peters	CFO	Sell	8,256	$22.40	$184,934.40
12/16/2021	William J. Peters	CFO	Sell	1,744	$22.40	$39,065.60
12/10/2021	Richard K. Prins	Director	Sell	5,291	$21.36	$113,015.76
11/22/2021	Richard K. Prins	Director	Sell	5,000	$21.22	$106,100.00
11/11/2021	Rong Zhou	EVP	Sell	7,813	$21.67	$169,307.71
11/11/2021	William J. Peters	CFO	Sell	10,000	$21.33	$213,300.00
7/26/2021	Rong Zhou	EVP	Sell	6,000	$20.87	$125,220.00	92,244
7/20/2021	Rong Zhou	EVP	Sell	5,187	$20.57	$106,696.59
7/15/2021	Yakob Liawatidewi	EVP	Sell	31,524	$20.01	$630,795.24	77,927
7/7/2021	William J. Peters	CFO	Sell	10,000	$20.37	$203,700.00
6/8/2021	Rong Zhou	EVP	Sell	8,180	$19.34	$158,201.20
6/7/2021	Richard K. Prins	Director	Sell	5,000	$18.70	$93,500.00	140,741
6/3/2021	Floyd F. Petersen	Director	Sell	10,000	$18.65	$186,500.00	83,354
6/1/2021	Richard Koo	Director	Sell	25,827	$19.28	$497,944.56	279,097
5/20/2021	Howard Lee	Director	Sell	10,000	$19.74	$197,400.00	142,914
5/13/2021	Michael A. Zasloff	Director	Sell	25,827	$19.34	$499,494.18	67,014
5/13/2021	Rong Zhou	EVP	Sell	700	$19.58	$13,706.00	96,965
5/11/2021	Richard K. Prins	Director	Sell	15,827	$18.90	$299,130.30	54,987
5/11/2021	Yakob Liawatidewi	EVP	Sell	10,000	$19.06	$190,600.00	71,351
3/15/2021	William J. Peters	CFO	Sell	4,244	$19.03	$80,763.32	85,304
2/18/2021	Jack Y Zhang	CEO	Sell	30,467	$18.59	$566,381.53
2/11/2021	Jack Y Zhang	CEO	Sell	19,823	$19.06	$377,826.38	2,246,988
2/9/2021	Jack Y Zhang	CEO	Sell	40,886	$18.92	$773,563.12	2,246,988
2/4/2021	Jack Y Zhang	CEO	Sell	25,570	$18.89	$483,017.30	2,246,988
2/2/2021	Jack Y Zhang	CEO	Sell	37,931	$18.43	$699,068.33	2,246,988
2/1/2021	Floyd F. Petersen	Director	Sell	639	$18.26	$11,668.14	73,354
1/19/2021	William J. Peters	CFO	Sell	6,495	$18.67	$121,261.65
12/1/2020	Floyd F. Petersen	Director	Sell	500	$17.87	$8,935.00	73,993
11/2/2020	Floyd F. Petersen	Director	Sell	500	$19.84	$9,920.00	74,493
9/1/2020	Floyd F. Petersen	Director	Sell	500	$19.90	$9,950.00	75,493
8/14/2020	David Maris	Director	Buy	1,000	$20.26	$20,260.00	13,151
8/14/2020	William J. Peters	CFO	Sell	5,512	$20.36	$112,224.32	95,652
8/11/2020	Richard K. Prins	Director	Sell	6,000	$20.33	$121,980.00	39,160
8/3/2020	Floyd F. Petersen	Director	Sell	500	$20.62	$10,310.00	75,993
7/21/2020	Yakob Liawatidewi	EVP	Sell	5,978	$21.22	$126,853.16	50,182
7/6/2020	William J. Peters	CFO	Sell	13,656	$22.00	$300,432.00
7/1/2020	Floyd F. Petersen	Director	Sell	500	$22.27	$11,135.00	76,493
6/9/2020	Yakob Liawatidewi	EVP	Sell	23,405	$20.12	$470,908.60	69,529
6/3/2020	Rong Zhou	EVP	Sell	13,163	$18.82	$247,727.66
6/1/2020	Floyd F. Petersen	Director	Sell	500	$18.97	$9,485.00	71,142
5/27/2020	Richard Koo	Director	Sell	47,782	$18.18	$868,676.76	295,201
5/20/2020	Howard Lee	Director	Sell	17,782	$18.43	$327,722.26	145,863
5/14/2020	Michael A. Zasloff	Director	Sell	14,832	$18.00	$266,976.00	50,168
5/12/2020	Michael A. Zasloff	Director	Sell	10,000	$19.00	$190,000.00	45,336
5/1/2020	Floyd F. Petersen	Director	Sell	500	$16.66	$8,330.00	71,642
4/1/2020	Floyd F. Petersen	Director	Sell	500	$14.36	$7,180.00	72,142
3/13/2020	William J. Peters	CFO	Sell	4,701	$13.94	$65,531.94	76,011
2/6/2020	Jason B Shandell	General Counsel	Sell	21,933	$19.83	$434,931.39	154,513
1/21/2020	William J. Peters	CFO	Sell	3,990	$20.07	$80,079.30
1/8/2020	Jason B Shandell	General Counsel	Sell	25,000	$18.44	$461,000.00	163,898
1/2/2020	Floyd F. Petersen	Director	Sell	1,000	$19.14	$19,140.00	73,642
12/18/2019	Jason B Shandell	General Counsel	Sell	8,205	$19.13	$156,961.65	138,898
12/2/2019	Floyd F. Petersen	Director	Sell	500	$19.25	$9,625.00	74,642

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SEC Filings (Institutional Ownership Changes) for Amphastar Pharmaceuticals (NASDAQ:AMPH)

63.11% of Amphastar Pharmaceuticals stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Amphastar Pharmaceuticals Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
11/22/2022	Teachers Retirement System of The State of Kentucky	11,021	$0.31M	0.0%	N/A	0.023%
11/22/2022	Capital Impact Advisors LLC	14,669	$0.42M	0.4%	+6.0%	0.030%
11/21/2022	California State Teachers Retirement System	49,024	$1.38M	0.0%	-1.5%	0.101%
11/16/2022	Advisory Research Inc.	15,148	$0.43M	0.0%	N/A	0.031%
11/16/2022	BNP Paribas Arbitrage SNC	16,520	$0.46M	0.0%	-67.6%	0.034%
11/15/2022	State Street Corp	1,533,793	$43.10M	0.0%	-0.5%	3.174%
11/15/2022	Jacobs Levy Equity Management Inc.	188,039	$5.28M	0.0%	+0.5%	0.389%
11/15/2022	Algert Global LLC	35,523	$1M	0.1%	+15.6%	0.073%
11/15/2022	Summit Global Investments	20,100	$0.57M	0.1%	-62.2%	0.042%
11/15/2022	Thrivent Financial for Lutherans	39,521	$1.11M	0.0%	+7.0%	0.082%
11/15/2022	Two Sigma Advisers LP	90,600	$2.55M	0.0%	-18.7%	0.187%
11/15/2022	Trexquant Investment LP	26,482	$0.74M	0.0%	-15.6%	0.055%
11/15/2022	UBS Asset Management Americas Inc.	46,423	$1.30M	0.0%	-3.1%	0.096%
11/15/2022	Vanguard Group Inc.	2,606,162	$73.23M	0.0%	+1.8%	5.392%
11/15/2022	Price T Rowe Associates Inc. MD	808,731	$22.73M	0.0%	+396.7%	1.673%
11/15/2022	Portolan Capital Management LLC	282,187	$7.93M	0.8%	+2.7%	0.584%
11/15/2022	Marshall Wace LLP	31,638	$0.89M	0.0%	+11.2%	0.065%
11/15/2022	Martingale Asset Management L P	65,536	$1.84M	0.0%	-12.1%	0.136%
11/15/2022	Federated Hermes Inc.	3,265,179	$91.75M	0.3%	-0.5%	6.756%
11/15/2022	Frontier Capital Management Co. LLC	204,573	$5.75M	0.1%	-0.5%	0.423%
11/15/2022	Bank of New York Mellon Corp	362,875	$10.20M	0.0%	-0.8%	0.751%
11/15/2022	BlackRock Inc.	7,147,813	$200.85M	0.0%	+1.1%	14.790%
11/14/2022	Royal Bank of Canada	4,011	$0.11M	0.0%	+19.1%	0.008%
11/14/2022	Point72 Hong Kong Ltd	2,683	$75K	0.0%	-44.0%	0.006%
11/14/2022	Cubist Systematic Strategies LLC	32,330	$0.91M	0.0%	-71.2%	0.067%
11/14/2022	Guggenheim Capital LLC	14,073	$0.40M	0.0%	-7.7%	0.029%
11/14/2022	Renaissance Technologies LLC	433,800	$12.19M	0.0%	+6.6%	0.898%
11/14/2022	Lazard Asset Management LLC	5,331	$0.15M	0.0%	+31.9%	0.011%
11/14/2022	Nuveen Asset Management LLC	416,607	$11.71M	0.0%	-29.5%	0.862%
11/14/2022	Renaissance Group LLC	44,364	$1.25M	0.1%	+3.3%	0.092%
11/14/2022	AXA S.A.	146,265	$4.11M	0.0%	+83.1%	0.303%
11/14/2022	Aviva PLC	54,477	$1.53M	0.0%	-4.0%	0.113%
11/14/2022	Oberweis Asset Management Inc.	101,500	$2.85M	0.7%	+467.0%	0.210%
11/14/2022	Shell Asset Management Co.	13,398	$0.38M	0.0%	-20.8%	0.028%
11/14/2022	Hsbc Holdings PLC	8,093	$0.23M	0.0%	+6.7%	0.017%
11/14/2022	Hennion & Walsh Asset Management Inc.	7,286	$0.21M	0.0%	N/A	0.015%
11/10/2022	Credit Suisse AG	38,929	$1.09M	0.0%	+10.0%	0.079%
11/10/2022	WINTON GROUP Ltd	26,353	$0.74M	0.0%	-11.1%	0.054%
11/10/2022	Dimensional Fund Advisors LP	1,839,134	$51.68M	0.0%	+0.7%	3.753%
11/10/2022	Tower Research Capital LLC TRC	5,143	$0.14M	0.0%	+145.0%	0.010%
11/10/2022	UBS Group AG	15,450	$0.43M	0.0%	-43.9%	0.032%
11/10/2022	Jupiter Asset Management Ltd.	11,067	$0.31M	0.0%	-20.4%	0.023%
11/9/2022	Amalgamated Bank	18,577	$0.52M	0.0%	+2.0%	0.038%
11/9/2022	Jackson Creek Investment Advisors LLC	27,577	$0.78M	0.4%	-4.4%	0.056%
11/8/2022	Allianz Asset Management GmbH	20,924	$0.59M	0.0%	-32.5%	0.043%
11/8/2022	State Board of Administration of Florida Retirement System	18,259	$0.51M	0.0%	N/A	0.037%
11/8/2022	Mutual of America Capital Management LLC	83,250	$2.34M	0.0%	+1,218.5%	0.170%
11/8/2022	Mesirow Institutional Investment Management Inc.	377,099	$10.60M	1.5%	N/A	0.769%
11/8/2022	Eagle Asset Management Inc.	310,255	$8.72M	0.1%	+36.4%	0.633%
11/7/2022	LSV Asset Management	10,700	$0.30M	0.0%	-91.6%	0.022%
11/7/2022	Nisa Investment Advisors LLC	1,130	$35K	0.0%	-55.7%	0.002%
11/7/2022	D.A. Davidson & CO.	49,090	$1.38M	0.0%	-2.5%	0.100%
11/4/2022	Prudential Financial Inc.	141,132	$3.97M	0.0%	+56.8%	0.288%
11/4/2022	Russell Investments Group Ltd.	71,394	$2M	0.0%	-68.7%	0.146%
11/3/2022	Financial Gravity Asset Management Inc.	448	$2.11M	0.1%	N/A	0.001%
11/3/2022	Teacher Retirement System of Texas	49,156	$1.38M	0.0%	+590.5%	0.100%
11/3/2022	Barclays PLC	55,504	$1.56M	0.0%	-13.4%	0.113%
11/2/2022	Cim LLC	6,652	$0.21M	0.0%	N/A	0.014%
11/2/2022	Victory Capital Management Inc.	36,427	$1.02M	0.0%	-18.6%	0.074%
11/1/2022	Great West Life Assurance Co. Can	42,367	$1.19M	0.0%	N/A	0.086%
11/1/2022	Assetmark Inc.	26,132	$0.73M	0.0%	N/A	0.053%
10/31/2022	SG Americas Securities LLC	4,434	$0.13M	0.0%	-61.0%	0.009%
10/28/2022	Comerica Bank	27,592	$0.85M	0.0%	-8.9%	0.056%
10/28/2022	Maryland State Retirement & Pension System	15,634	$0.44M	0.0%	+2.6%	0.032%
10/27/2022	US Bancorp DE	2,492	$70K	0.0%	+23.2%	0.005%
10/27/2022	Money Concepts Capital Corp	10,099	$0.28M	0.0%	+4.7%	0.021%
10/27/2022	Assenagon Asset Management S.A.	145,216	$4.08M	0.0%	-65.3%	0.296%
10/27/2022	Strs Ohio	27,300	$0.77M	0.0%	+26.4%	0.056%
10/26/2022	Allspring Global Investments Holdings LLC	226,524	$6.37M	0.0%	+283.6%	0.462%
10/26/2022	Truist Financial Corp	7,928	$0.22M	0.0%	-59.1%	0.016%
10/25/2022	Versor Investments LP	10,929	$0.31M	0.0%	-15.9%	0.022%
10/25/2022	Hightower 6M Holding LLC	10,307	$0.29M	0.0%	-35.6%	0.021%
10/25/2022	Raymond James & Associates	25,912	$0.73M	0.0%	+41.7%	0.053%
10/24/2022	USA Financial Portformulas Corp	1,181	$33K	0.1%	-53.0%	0.002%
10/20/2022	State of Alaska Department of Revenue	26,469	$0.74M	0.0%	-6.9%	0.054%
10/20/2022	FinTrust Capital Advisors LLC	7,000	$0.20M	0.1%	+75.0%	0.014%
10/19/2022	Louisiana State Employees Retirement System	18,300	$0.51M	0.0%	N/A	0.037%
10/19/2022	Shaker Investments LLC OH	80,399	$2.26M	1.5%	+116.6%	0.164%
10/19/2022	Nordea Investment Management AB	345,378	$10.12M	0.0%	-0.4%	0.705%
10/11/2022	Juncture Wealth Strategies LLC	12,208	$0.34M	0.2%	+109.4%	0.025%
10/7/2022	Exchange Traded Concepts LLC	36,017	$1.01M	0.0%	-33.7%	0.073%
9/16/2022	Federated Hermes Inc.	3,282,967	$114.21M	0.3%	-5.9%	6.698%
8/23/2022	Summit Global Investments	53,214	$1.85M	0.2%	+19.0%	0.109%
8/22/2022	Legal & General Group Plc	89,234	$3.11M	0.0%	+2.3%	0.182%
8/18/2022	Goldman Sachs Group Inc.	329,843	$11.48M	0.0%	+183.2%	0.673%
8/16/2022	Castleark Management LLC	192,649	$6.70M	0.4%	N/A	0.393%
8/16/2022	Thrivent Financial for Lutherans	36,940	$1.29M	0.0%	+23.2%	0.075%
8/16/2022	Price T Rowe Associates Inc. MD	162,814	$5.66M	0.0%	N/A	0.332%
8/16/2022	Prudential Financial Inc.	90,015	$3.07M	0.0%	+11.3%	0.184%
8/15/2022	Occudo Quantitative Strategies LP	66,113	$2.30M	0.2%	+166.4%	0.135%
8/15/2022	AQR Capital Management LLC	35,290	$1.23M	0.0%	+161.4%	0.072%
8/15/2022	State Street Corp	1,540,846	$53.61M	0.0%	+16.6%	3.144%
8/15/2022	PDT Partners LLC	54,804	$1.91M	0.2%	+59.4%	0.112%
8/15/2022	Capital Impact Advisors LLC	13,835	$0.48M	0.4%	-22.1%	0.028%
8/15/2022	Point72 Hong Kong Ltd	4,795	$0.17M	0.0%	+131.6%	0.010%
8/15/2022	Cubist Systematic Strategies LLC	112,157	$3.90M	0.0%	-20.0%	0.229%
8/15/2022	Millennium Management LLC	82,041	$2.85M	0.0%	-52.7%	0.167%
8/15/2022	Sei Investments Co.	60,625	$2.12M	0.0%	+51.2%	0.124%
8/15/2022	Quantamental Technologies LLC	7,677	$0.27M	0.1%	N/A	0.016%
8/15/2022	UBS Asset Management Americas Inc.	47,885	$1.67M	0.0%	+10.8%	0.098%

Data available starting January 2016

Amphastar Pharmaceuticals, Inc., a bio-pharmaceutical company, develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products in the United States, China, and France. The company operates through two segments, Finished Pharmaceutical Products and API. It offers Primatene Mist, an over-the-counter epinephrine inhalation product for the temporary relief of mild symptoms of intermittent asthma; Enoxaparin, a low molecular weight heparin to prevent and treat deep vein thrombosis; Naloxone for opioid overdose; Glucagon for injection emergency kit; and Cortrosyn, a lyophilized powder for use as a diagnostic agent in the screening of patients with adrenocortical insufficiency. The company also provides Amphadase, a bovine-sourced hyaluronidase injection to absorb and disperse other injected drugs; Epinephrine injection for the emergency treatment of allergic reactions; lidocaine jelly, an anesthetic product for urological procedures; lidocaine topical solution for various procedures; phytonadione injection, a vitamin K1 injection for newborn babies; emergency syringe products for emergency use in hospital settings; morphine injection for use with patient controlled analgesia pumps; and lorazepam injection for surgery and medical procedures. In addition, it offers neostigmine methylsulfate injection to treat myasthenia gravis and to reverse the effects of muscle relaxants; and Isoproterenol hydrochloride injection for mild or transient episodes of heart block. Further, the company distributes recombinant human insulin active pharmaceutical ingredients (API) and porcine insulin API. It serves hospitals, care facilities, alternate care sites, clinics, and doctors' offices. The company was founded in 1996 and is headquartered in Rancho Cucamonga, California.

Today's Range

Now: $29.18

$28.67

$29.45

50 Day Range

MA: $28.95

$27.28

$31.27

52 Week Range

Now: $29.18

$19.21

$44.46

Volume

86,829 shs

Average Volume

402,677 shs

Market Capitalization

$1.41 billion

P/E Ratio

19.58

Dividend Yield

N/A

Beta

0.74

Who are the company insiders with the largest holdings of Amphastar Pharmaceuticals?: Amphastar Pharmaceuticals' top insider shareholders include:
Jack Y Zhang (CEO)
Richard Koo (Director)
Howard Lee (Director)
Richard K Prins (Director)
William J Peters (CFO)
Rong Zhou (EVP)
Floyd F Petersen (Director)
Yakob Liawatidewi (EVP)
Michael A Zasloff (Director)
Diane G Gerst (Director)
William J Peters (CFO)
Learn More about top insider investors at Amphastar Pharmaceuticals.
Who are the major institutional investors of Amphastar Pharmaceuticals?: Amphastar Pharmaceuticals' top institutional shareholders include:
BlackRock Inc. — 14.79%
Federated Hermes Inc. — 6.76%
Vanguard Group Inc. — 5.39%
Dimensional Fund Advisors LP — 3.75%
State Street Corp — 3.17%
Price T Rowe Associates Inc. MD — 1.67%
Learn More about top institutional investors of Amphastar Pharmaceuticals stock.
Which institutional investors are selling Amphastar Pharmaceuticals stock?: During the previous quarter, AMPH stock was sold by these institutional investors:
Nantahala Capital Management LLC
Assenagon Asset Management S.A.
Nuveen Asset Management LLC
Russell Investments Group Ltd.
LSV Asset Management
Parallax Volatility Advisers L.P.
Parallax Volatility Advisers L.P.
Cubist Systematic Strategies LLC
In the last year, company insiders that have sold Amphastar Pharmaceuticals company stock include:
Jack Y Zhang (CEO)
Richard Koo (Director)
Howard Lee (Director)
Richard K Prins (Director)
William J Peters (CFO)
Rong Zhou (EVP)
Floyd F Petersen (Director)
Yakob Liawatidewi (EVP)
Michael A Zasloff (Director)
Learn More investors selling Amphastar Pharmaceuticals stock.
Which institutional investors are buying Amphastar Pharmaceuticals stock?: During the last quarter, AMPH stock was bought by institutional investors including:
Price T Rowe Associates Inc. MD
Mesirow Institutional Investment Management Inc.
Allspring Global Investments Holdings LLC
Oberweis Asset Management Inc.
Eagle Asset Management Inc.
Mutual of America Capital Management LLC
BlackRock Inc.
AXA S.A.

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AMPH Insider Trading

Amphastar Pharmaceuticals Insider Trading History Chart

Amphastar Pharmaceuticals Share Price & Price History

Amphastar Pharmaceuticals Insider Trading History

SEC Filings (Institutional Ownership Changes) for Amphastar Pharmaceuticals (NASDAQ:AMPH)

Institutional Buying and Selling by Quarter

Amphastar Pharmaceuticals Institutional Trading History

Today's Range

50 Day Range

52 Week Range

Volume

Average Volume

Market Capitalization

P/E Ratio

Dividend Yield

Beta

Who are the company insiders with the largest holdings of Amphastar Pharmaceuticals?

Who are the major institutional investors of Amphastar Pharmaceuticals?

Which institutional investors are selling Amphastar Pharmaceuticals stock?

Which institutional investors are buying Amphastar Pharmaceuticals stock?