AMPH Logo

Amphastar Pharmaceuticals, Inc. (AMPH) 

NASDAQ$28.29
Market Cap
$1.35B
Sector
Healthcare
Industry
Drug Manufacturers—Specialty & Generic
Rank in Sector
448 of 922
Rank in Industry
21 of 56

AMPH Insider Trading Activity

AMPH Median Price and Trade Amounts History Chart

Statistics of Insider Transactions

Amount of Insider Buys and Sells

Buys
$000
Sells
$4,498,01719100

Related Transactions

Liawatidewi YakobEVP CORP ADMIN CENTER0$01$271,389$-271,389
Petersen Floyd F.director0$06$355,481$-355,481
PETERS WILLIAM JCFO, EVP & TREASURER0$04$1.1M$-1.1M
Zhou RongSENIOR EVP, PRODUCTION CENTER0$05$1.35M$-1.35M
PRINS RICHARD Kdirector0$03$1.42M$-1.42M

About Amphastar Pharmaceuticals, Inc.

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.

Insider Activity of Amphastar Pharmaceuticals, Inc.

Over the last 12 months, insiders at Amphastar Pharmaceuticals, Inc. have bought $0 and sold $4.5M worth of Amphastar Pharmaceuticals, Inc. stock.

On average, over the past 5 years, insiders at Amphastar Pharmaceuticals, Inc. have bought $40,520 and sold $15.1M worth of stock each year.

There was no buying activity among insiders over the last 12 months.

The last purchase of 2,000 shares for transaction amount of $40,520 was made by Maris David (director) on 2020‑08‑14.

List of Insider Buy and Sell Transactions, Amphastar Pharmaceuticals, Inc.

2025-03-06SalePetersen Floyd F.director
1,000
0.0021%
$27.99$27,986-2.22%
2025-03-04SalePETERS WILLIAM JCFO, EVP & TREASURER
4,231
0.0088%
$27.54$116,515+0.83%
2024-12-13SaleZhou RongSENIOR EVP, PRODUCTION CENTER
8,000
0.018%
$45.23$361,840-21.43%
2024-12-12SaleZhou RongSENIOR EVP, PRODUCTION CENTER
7,000
0.0145%
$44.42$310,975-25.19%
2024-12-09SalePRINS RICHARD Kdirector
10,000
0.0207%
$43.77$437,702-20.44%
2024-11-12SaleZhou RongSENIOR EVP, PRODUCTION CENTER
6,893
0.0147%
$48.88$336,930-23.79%
2024-11-12SalePRINS RICHARD Kdirector
5,000
0.0107%
$48.80$243,986-23.79%
2024-11-06SalePETERS WILLIAM JCFO, EVP & TREASURER
7,426
0.0148%
$52.05$386,523-31.89%
2024-11-06SaleLiawatidewi YakobEVP CORP ADMIN CENTER
5,214
0.0104%
$52.05$271,389-31.89%
2024-09-13SaleZhou RongSENIOR EVP, PRODUCTION CENTER
3,000
0.0062%
$48.26$144,785-15.06%
2024-09-05SalePetersen Floyd F.director
3,000
0.0063%
$46.47$139,417-4.01%
2024-08-26SaleZhou RongSENIOR EVP, PRODUCTION CENTER
4,000
0.0083%
$48.35$193,400-9.00%
2024-08-12SalePRINS RICHARD Kdirector
17,101
0.0347%
$43.07$736,550+2.17%
2024-07-31SalePETERS WILLIAM JCFO, EVP & TREASURER
10,282
0.0214%
$44.23$454,773+0.68%
2024-06-27SalePETERS WILLIAM JCFO, EVP & TREASURER
3,596
0.0075%
$40.93$147,169+5.20%
2024-06-10SalePetersen Floyd F.director
3,000
0.0061%
$41.40$124,200-1.08%
2024-06-03SalePetersen Floyd F.director
500
0.001%
$42.65$21,326-2.06%
2024-05-01SalePetersen Floyd F.director
500
0.001%
$41.67$20,837+0.31%
2024-04-01SalePetersen Floyd F.director
500
0.001%
$43.43$21,714-3.66%
2024-03-06SalePETERS WILLIAM JCFO, EVP & TREASURER
18,136
0.0379%
$46.48$842,883-8.69%
Total: 398
*Gray background shows transactions not older than one year

Insider Historical Profitability

22.92%
Zhou RongSENIOR EVP, PRODUCTION CENTER
118469
0.2486%
$3.35M033
PETERS WILLIAM JCFO, EVP & TREASURER
97363
0.2043%
$2.75M055
Liawatidewi YakobEVP CORP ADMIN CENTER
74938
0.1573%
$2.12M032
Petersen Floyd F.director
74409
0.1562%
$2.11M160+27.09%
PRINS RICHARD Kdirector
30471
0.0639%
$862,024.59242+28.12%
Applied Physics & Chemistry Laboratories, Inc.10 percent owner
7327679
15.3781%
$207.3M011
Zhang Jack Y.CEO & Chief Scientific Officer
6827679
14.3288%
$193.16M235+24.35%
Luo Mary Z.COO,Chief Scientist & Chairman
1104416
2.3178%
$31.24M06
Koo Richarddirector
253270
0.5315%
$7.17M13+27.09%
Lee Howarddirector
142939
0.3%
$4.04M118+18.46%
Shandell Jason B.President and General Counsel
138898
0.2915%
$3.93M035
Purchase Marilyn J.Corp. Exec. VP of Operations
44902
0.0942%
$1.27M01
Shohet Stephen B.director
30706
0.0644%
$868,672.74117+27.09%
ZASLOFF MICHAEL Adirector
21326
0.0448%
$603,312.54118+29.92%
Maris Daviddirector
13151
0.0276%
$372,041.7910<0.0001%
Gerst Diane G.
12842
0.027%
$363,300.18019
Deflin Gayledirector
2716
0.0057%
$76,835.6403
*Gray background shows insiders who have made transactions during last year

Historical Insider Profitability vs. Competitors

$910,099,463
123
11.52%
$2.63B
$187,390,806
89
12.63%
$812.1M
$12,681,496
70
20.90%
$828.11M
$23,522,750
59
-6.74%
$5.21B
$14,599,168
59
12.79%
$1.4B
$97,642,477
41
-10.58%
$828.54M
$102,493,771
40
22.98%
$1.12B
$73,284,153
37
-4.48%
$3.81B
$21,068,600
35
9.64%
$1.71B
$10,083,169
34
33.40%
$1.01B
$12,998,723
30
3.46%
$4B
$6,506,230
27
-16.20%
$684.73M
$83,406,412
19
21.96%
$1.79B
$2,233,486
16
-3.32%
$10.92B
Amphastar Pharmaceuticals, Inc.
(AMPH)
$1,843,996
10
22.92%
$1.35B
$26,633,903
9
42.23%
$946.14M
$141,200
8
41.74%
$6.69B
$543,932
6
-22.04%
$745.28M
$514,533
5
29.59%
$887.03M

AMPH Institutional Investors: Active Positions

Increased Positions123+35.96%4M+12.09%
Decreased Positions150-43.86%4M-11.62%
New Positions38New1MNew
Sold Out Positions50Sold Out1MSold Out
Total Postitions315-7.89%36M+0.47%

AMPH Ownership Change vs Market

Institutional Investor Ownership

Top Shareholders
Top Buyers
Top Sellers
New Shareholders
Sold-Out Shareholders
Active Shareholders
Blackrock, Inc.$163,101.0012.75%6.12M+85,100+1.41%2024-12-31
Vanguard Group Inc$72,372.005.66%2.71M+3,155+0.12%2024-12-31
Td Asset Management Inc$49,062.003.83%1.84M-294,752-13.8%2024-12-31
State Street Corp$42,552.003.33%1.6M+65,646+4.29%2024-12-31
Neuberger Berman Group Llc$36,634.002.86%1.37M-240,963-14.92%2024-12-31
Pacer Advisors, Inc.$36,001.002.81%1.35M+1M+51,977.44%2024-12-31
Dimensional Fund Advisors Lp$31,954.002.5%1.2M+105,288+9.63%2024-12-31
Fuller & Thaler Asset Management, Inc.$30,204.002.36%1.13M-127,841-10.14%2024-12-31
Epoch Investment Partners, Inc.$29,360.002.29%1.1M-89,837-7.54%2024-12-31
Boston Trust Walden Corp$26,098.002.04%978,920+439,281+81.4%2024-12-31

Financial Ratios

Summary
Comparison with Competitors

Analyst Recommendations

Analyst Price Targets

Prismo does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.
Information is provided 'as-is' and solely for informational purposes and is not advice. Prismo does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.