20.89

0.23% 0.02

Amphastar Pharmaceuticals Inc (AMPH)

Overview News Price History Option Chain Financials Why AMPH Down? Discussions Forecast

Amphastar Pharmaceuticals Inc stock is traded at $20.89, with a volume of 266.69K. It is up +0.23% in the last 24 hours and up +6.14% over the past month. Amphastar Pharmaceuticals Inc is a bio-pharmaceutical company focusing on developing, manufacturing, marketing, and selling technically challenging generic and proprietary injectable, inhalation, and intranasal products, as well as insulin active pharmaceutical ingredient (or insulin API products. The company's finished products are used in hospital or urgent care clinical settings and are contracted and distributed through group purchasing organizations and drug wholesalers. The company has one reportable segment: pharmaceutical products. Geographically, the business presence of the firm is seen in the United States, China, and France, of which the U.S. accounts for the majority of the revenue.

Previous Close:

$20.91

Open:

$20.9

24h Volume:

266.69K

Relative Volume:

0.48

Market Cap:

$888.62M

Revenue:

$720.53M

Net Income/Loss:

$79.23M

P/E Ratio:

12.55

EPS:

1.6648

Net Cash Flow:

$132.94M

1W Performance:

+3.19%

1M Performance:

+6.14%

6M Performance:

-26.33%

1Y Performance:

-29.74%

1-Day Range:

$20.77

$21.23

1-Week Range:

$19.61

$21.23

52-Week Range:

$16.64

$31.26

Amphastar Pharmaceuticals Inc Stock (AMPH) Company Profile

Name

Amphastar Pharmaceuticals Inc

Sector

Healthcare (1089)

Industry

Drug Manufacturers - Specialty & Generic (87)

Phone

909-980-9484

Address

11570 SIXTH STREET, RANCHO CUCAMONGA, CA

Employee

1,976

Twitter

Next Earnings Date

2026-08-06

Latest SEC Filings

AMPH's Discussions on Twitter

Compare AMPH vs TAK, TEVA, HLN, ZTS, UTHR

Stocks	Price	Market Cap	Revenue	Net Income	Cash Flow	EPS
AMPH Amphastar Pharmaceuticals Inc	20.89	889.47M	720.53M	79.23M	132.94M	1.6648
TAK Takeda Pharmaceutical Co Adr	17.36	56.30B	29.91B	1.30B	3.49B	0.4056
TEVA Teva Pharmaceutical Industries Ltd Adr	36.52	42.85B	17.53B	1.58B	444.18M	1.3457
HLN Haleon Plc Adr	9.59	42.72B	14.54B	2.22B	2.58B	0.4871
ZTS Zoetis Inc	72.39	30.49B	9.51B	2.64B	2.14B	6.0361
UTHR United Therapeutics Corp	506.59	21.43B	3.17B	1.29B	1.01B	27.09

Amphastar Pharmaceuticals Inc Stock (AMPH) Upgrades & Downgrades

Date	Action	Analyst	Rating Change
Apr-21-26	Downgrade	Jefferies	Buy → Hold
Dec-09-25	Initiated	Barclays	Equal Weight
Aug-12-25	Upgrade	Needham	Hold → Buy
May-12-25	Downgrade	JP Morgan	Overweight → Neutral
Feb-04-25	Downgrade	Piper Sandler	Overweight → Neutral
Nov-22-24	Initiated	Wells Fargo	Equal Weight
Mar-05-24	Initiated	JP Morgan	Overweight
Nov-17-23	Initiated	BofA Securities	Neutral
Jul-25-23	Resumed	Jefferies	Buy
Oct-21-22	Resumed	Jefferies	Buy
Jul-29-22	Initiated	CapitalOne	Overweight
Jan-07-22	Upgrade	Piper Sandler	Neutral → Overweight
Jan-08-21	Downgrade	Wells Fargo	Overweight → Equal Weight
Oct-05-20	Upgrade	Northland Capital	Market Perform → Outperform
May-01-20	Initiated	Northland Capital	Outperform
Mar-13-19	Downgrade	Needham	Buy → Hold
Mar-13-19	Downgrade	Piper Jaffray	Overweight → Neutral
Aug-10-18	Reiterated	Needham	Buy
Mar-13-18	Reiterated	Needham	Buy
Dec-01-17	Reiterated	Needham	Buy
Nov-09-17	Downgrade	Raymond James	Outperform → Mkt Perform
Sep-27-17	Reiterated	Needham	Buy
Mar-14-17	Downgrade	Raymond James	Strong Buy → Outperform
Aug-09-16	Reiterated	Needham	Buy
May-10-16	Reiterated	Needham	Buy
Feb-19-16	Initiated	Wells Fargo	Outperform
Jun-19-15	Reiterated	Needham	Buy
Jun-03-15	Initiated	Raymond James	Strong Buy
Jul-21-14	Initiated	Needham	Buy

View All

Amphastar Pharmaceuticals Inc Stock (AMPH) Latest News

Aug 14, 2026

Is It Too Late to Buy Amphastar Pharmaceuticals Inc (AMPH) After 3.6% Rally? GF Value Says Undervalued - GuruFocus

Aug 14, 2026

Lead Independent Director Richard Prins Sold A Bunch Of Shares In Amphastar Pharmaceuticals - simplywall.st

Aug 14, 2026

Aug 13, 2026

Amphastar Pharmaceuticals (AMPH) Director Richard Prins Sells 7, - GuruFocus

Aug 13, 2026

Aug 12, 2026

Richard Prins Sells 7,973 Shares of Amphastar Pharmaceuticals (NASDAQ:AMPH) Stock - marketbeat.com

Aug 12, 2026

Amphastar director Richard Prins disposes of shares valued at $161,851 By Investing.com - Investing.com South Africa

Aug 12, 2026

Amphastar director Richard Prins disposes of shares valued at $161,851 - Investing.com

Aug 12, 2026

Director Richard Prins sells 7,973 Amphastar (AMPH) shares at $20.30 - Stock Titan

Aug 12, 2026

Amphastar CFO William Peters sells $183,886 in company stock - Investing.com

Aug 12, 2026

Enterprise value to EBITDA forward of Amphastar Pharmaceuticals, Inc. – MUN:29A - TradingView

Aug 12, 2026

Aug 11, 2026

Amphastar Pharmaceuticals (NASDAQ:AMPH) CFO William Peters Sells 8,180 Shares - marketbeat.com

Aug 11, 2026

Amphastar (AMPH) CFO exercises options and sells 8,180 shares in 10b5-1 trade - Stock Titan

Aug 11, 2026

AMPH (AMPH) schedules Rule 144 stock sale tied to RSU vesting - Stock Titan

Aug 11, 2026

Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Receives Average Recommendation of "Reduce" from Analysts - marketbeat.com

Aug 11, 2026

Aug 10, 2026

Weekly Recap: Amphastar Q2 growth, $100M BAQSIMI and IMS FDA warning - TradingView

Aug 10, 2026

Aug 09, 2026

Results: Amphastar Pharmaceuticals, Inc. Exceeded Expectations And The Consensus Has Updated Its Estimates - Moomoo

Aug 09, 2026

Aug 08, 2026

Amphastar Pharmaceuticals (AMPH) Stock Rebound Meets Margin Pressure And Valuation Gap - Sahm

Aug 08, 2026

Amphastar Pharmaceuticals (NASDAQ:AMPH) Upgraded by Wall Street Zen to "Strong-Buy" Rating - marketbeat.com

Aug 08, 2026

Aug 07, 2026

Amphastar Pharmaceuticals, Inc. SEC Filing (Aug 7, 2026) - Stock Titan

Aug 07, 2026

Amphastar Pharmaceuticals (NASDAQ:AMPH) Price Target Cut to $20.00 by Analysts at Piper Sandler - marketbeat.com

Aug 07, 2026

Wells Fargo & Company Increases Amphastar Pharmaceuticals (NASDAQ:AMPH) Price Target to $20.00 - MarketBeat

Aug 07, 2026

Amphastar Pharmaceuticals (NASDAQ:AMPH) Shares Gap Up After Strong Earnings - MarketBeat

Aug 07, 2026

Aug 06, 2026

Amphastar Pharmaceuticals (NASDAQ:AMPH) Releases Quarterly Earnings Results, Beats Expectations By $0.29 EPS - MarketBeat

Aug 06, 2026

Compared to Estimates, Amphastar (AMPH) Q2 Earnings: A Look at Key Metrics - Yahoo Finance

Aug 06, 2026

Amphastar Pharmaceuticals (AMPH) Q2 Earnings and Revenues Top Estimates - Yahoo Finance

Aug 06, 2026

Amphastar Pharmaceuticals Q2 Earnings Call Highlights - Yahoo Finance

Aug 06, 2026

Amphastar Pharmaceuticals, Inc. reports results for the quarter ended June 30Earnings Summary - TradingView

Aug 06, 2026

Amphastar Pharmaceuticals (NASDAQ:AMPH) Posts Better-Than-Expected Sales In Q2 CY2026 - Yahoo Finance

Aug 06, 2026

Amphastar Pharmaceuticals (NASDAQ: AMPH) Q2 revenue rises 5% with margin gains - Stock Titan

Aug 06, 2026

Amphastar Pharmaceuticals Reports Financial Results for the Three Months Ended June 30, 2026 - Arizona Daily Star

Aug 06, 2026

Pacer Advisors Inc. Buys 83,739 Shares of Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Aug 06, 2026

Aug 04, 2026

What To Expect From Amphastar Pharmaceuticals’s (AMPH) Q2 Earnings - The Globe and Mail

Aug 04, 2026