NASDAQ : AMPH

Amphastar Pharmaceuticals, Inc. — Institutional Ownership

$19.96 USD

$0.06 (0.3%)

Volume
40.19K
Average Volume
614.79K
Market Capitalization
$880.09M
P/E Ratio
11.67
Dividend Yield
0.00%
Price Target
$20.50
Year High
$31.26
Year Low
$16.65
Day High
Day Low
Payout Ratio
$0.00
Current Ratio
$3.85
Institutional Ownership Summary
Institutional Ownership %

2.84%

Investors Holding

54

change: -162.0 | last: 216
Increased Positions

21

change: -79.0 | last: 100
Reduced Positions

18

change: -74.0 | last: 92
New Positions

10

change: -20.0 | last: 30
Sold Positions

170

change: 118.0 | last: 52
Total Calls

-

Total Puts

-

Put-Call Ratio

0.00

change: 0.0 | last: 0
Total Invested

25.97M

Beneficial Ownership Filings
Filing Date Reporting Person Amount Beneficially Owned % of Class
2026-07-14 Dimensional Fund Advisors LP 2.31M 5.20%
2026-03-26 The Vanguard Group - 0.00%
2025-10-17 BlackRock, Inc. 5.33M 11.50%
2025-02-07 Jack Y. Zhang 12.52M 24.80%
2022-02-14 Consonance Capman GP LLC - 0.00%
2022-02-14 Rhodora J. Donahue 3.46M 7.24%
2022-02-14 Thomas R. Donahue 3.46M 7.24%
2022-02-14 Mitchell Blutt - 0.00%
2022-02-14 Federated Hermes, Inc. 3.46M 7.24%
2022-02-14 Voting Shares Irrevocable Trust 3.46M 7.24%
2022-02-14 Consonance Capital Management LP - 0.00%
2022-02-14 J. Christopher Donahue 3.46M 7.24%
2022-02-11 Applied Physics & Chemistry Laboratories, Inc. 6.83M 14.30%
2022-02-11 Jack Yongfeng Zhang 12.83M 25.50%
2022-02-11 Mary Ziping Luo 12.83M 25.50%
2022-02-09 The Vanguard Group - 23-1945930 2.47M 5.16%
2022-01-28 (1) BlackRock, Inc. 7.16M 15.00%
2021-02-17 Mitchell Blutt 7.58M 6.11%
2021-02-17 Consonance Capital Management LP 5.4M 4.36%
2021-02-17 Consonance Capital Opportunity Fund Management LP 2.18M 1.75%
2021-02-17 Consonance Capman GP LLC 7.58M 6.11%
2021-02-16 Consonance Capital Management LP 5.4M 4.36%
2021-02-16 Consonance Capital Opportunity Fund Management LP 1.19M 2.04%
2021-02-16 Mitchell Blutt 6.06M 9.99%
2021-02-16 Consonance Capman GP LLC 6.06M 9.99%
2021-02-12 Applied Physics & Chemistry Laboratories, Inc. 7.03M 14.80%
2021-02-12 Voting Shares Irrevocable Trust 3.23M 6.79%
2021-02-12 J. Christopher Donahue 3.23M 6.79%
2021-02-12 Jack Yongfeng Zhang 12.49M 25.20%
2021-02-12 Mary Ziping Luo 12.49M 25.20%
2021-02-12 Thomas R. Donahue 3.23M 6.79%
2021-02-12 Rhodora J. Donahue 3.23M 6.79%
2021-02-12 Federated Hermes, Inc. 3.23M 6.79%
2021-02-10 The Vanguard Group - 23-1945930 2.48M 5.22%
2021-01-26 (1) BlackRock, Inc. 7.14M 15.00%
2020-02-14 33-4234397 7.03M 15.00%
2020-02-14 Mary Ziping Luo 13M 26.20%
2020-02-14 Jack Yongfeng Zhang 13M 26.20%
2020-02-11 The Vanguard Group - 23-1945930 2.36M 5.03%
2020-02-04 (1) BlackRock, Inc. 6.13M 13.10%
2019-02-13 Jack Yongfeng Zhang 13.35M 27.30%
2019-02-13 33-4234397 7.33M 15.90%
2019-02-13 Mary Ziping Luo 13.35M 27.30%
2019-01-24 (1) BlackRock, Inc. 5.93M 12.90%
2018-02-09 Jack Yongfeng Zhang 12.87M 26.70%
2018-02-09 Mary Ziping Luo 12.87M 26.70%
2018-02-09 Applied Physics & Chemistry Laboratories, Inc. 7.46M 16.20%
2018-01-19 (1) BlackRock, Inc. 5.51M 12.00%
2017-02-13 Mary Ziping Luo 12.89M 25.90%
2017-02-13 Jack Yongfeng Zhang 12.89M 25.90%
2017-01-09 (1) BlackRock, Inc. 5.09M 11.00%
2015-02-17 Broadfin Capital, LLC 2.13M 4.80%
2015-02-17 Kevin Kotler 2.13M 4.80%
2015-02-17 Broadfin Healthcare Master Fund, Ltd. 2.13M 4.80%
2015-02-12 Jack Yongfeng Zhang 11.12M 24.91%
2014-07-03 Broadfin Healthcare Master Fund, Ltd. 2.18M 5.01%
2014-07-03 Broadfin Capital, LLC 2.18M 5.01%
2014-07-03 Kevin Kotler 2.18M 5.01%
2014-06-30 Deerfield Management Company, L.P. 1.83M 4.22%
2014-06-30 Deerfield Mgmt, L.P. 1.83M 4.22%
2014-06-30 Deerfield Special Situations International Master Fund, L.P. 813.31K 1.87%
2014-06-30 James E. Flynn 1.83M 4.22%
2014-06-30 Deerfield Special Situations Fund, L.P. 1.02M 2.35%
2013-03-06 Sabby Healthcare Volatility Master Fund, Ltd. 1.67M 6.17%
AMPH Enterprise Value History
Annual
Date Stock Price Shares Outstanding Market Cap Cash & Equivalents Total Debt Enterprise Value
2025-12-31 $26.78 46.74M $1.25B $170.18M $656M $1.74B
2024-12-31 $37.13 48.43M $1.8B $151.61M $650.55M $2.3B
2023-12-31 $61.85 48.26M $2.99B $144.3M $623.64M $3.46B
2022-12-31 $28.02 48.55M $1.36B $156.1M $102.58M $1.31B
2021-12-31 $23.29 47.78M $1.11B $126.35M $104.66M $1.09B
2020-12-31 $20.11 47.04M $945.93M $92.64M $67.27M $920.56M
2019-12-31 $19.29 46.98M $906.28M $75.55M $66.62M $897.36M
2018-12-31 $19.90 46.4M $923.26M $86.34M $50.21M $887.14M
2017-12-31 $19.24 46.11M $887.1M $65.59M $47.16M $868.66M
2016-12-31 $18.42 45.38M $835.81M $72.35M $37.72M $801.18M
Quarterly
Date Stock Price Shares Outstanding Market Cap Cash & Equivalents Total Debt Enterprise Value
2026-03-31 $19.59 45.32M $887.86M $171.17M $686.38M $1.4B
2025-12-31 $26.78 45.91M $1.23B $170.18M $656M $1.72B
2025-09-30 $26.65 46.47M $1.24B $216.5M $656.77M $1.68B
2025-06-30 $22.96 46.95M $1.08B $187.69M $655.5M $1.55B
2025-03-31 $28.99 47.64M $1.38B $182.78M $652.53M $1.85B
2024-12-31 $37.13 48.43M $1.8B $151.61M $650.55M $2.3B
2024-09-30 $48.53 48.62M $2.36B $192.12M $629.85M $2.8B
2024-06-30 $38.51 48.91M $1.88B $189.62M $620.58M $2.31B
2024-03-31 $43.44 48.21M $2.09B $201.15M $627.12M $2.52B
2023-12-31 $61.85 47.96M $2.97B $144.3M $623.64M $3.45B
2023-09-30 $45.99 48.7M $2.24B $266.78M $672.56M $2.65B
2023-06-30 $57.47 48.4M $2.78B $151.28M $528.74M $3.16B