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Amphastar Pharmaceuticals Inc stock is traded at $25.27, with a volume of 341.41K. It is down -2.43% in the last 24 hours and down -9.20% 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.
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Previous Close:
$25.90
Open:
$26.13
24h Volume:
341.41K
Relative Volume:
0.80
Market Cap:
$1.16B
Revenue:
$722.68M
Net Income/Loss:
$134.71M
P/E Ratio:
9.4644
EPS:
2.67
Net Cash Flow:
$109.94M
1W Performance:
-5.60%
1M Performance:
-9.20%
6M Performance:
-4.43%
1Y Performance:
-43.21%
1-Day Range:
Value
$25.20
$26.13
1-Week Range:
Value
$25.20
$26.84
52-Week Range:
Value
$20.39
$45.39

Amphastar Pharmaceuticals Inc Stock (AMPH) Company Profile

Name
Name
Amphastar Pharmaceuticals Inc
Name
Phone
909-980-9484
Name
Address
11570 SIXTH STREET, RANCHO CUCAMONGA, CA
Name
Employee
2,028
Name
Twitter
Name
Next Earnings Date
2024-12-06
Name
Latest SEC Filings
Name
AMPH's Discussions on Twitter

Compare AMPH with other stocks

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
Drug Manufacturers - Specialty & Generic icon
AMPH
Amphastar Pharmaceuticals Inc
25.27 1.19B 722.68M 134.71M 109.94M 2.67
Drug Manufacturers - Specialty & Generic icon
ZTS
Zoetis Inc
118.66 51.85B 9.40B 2.65B 2.24B 5.935
Drug Manufacturers - Specialty & Generic icon
TAK
Takeda Pharmaceutical Co Adr
14.33 45.46B 29.63B 260.53M 5.51B 0.0788
Drug Manufacturers - Specialty & Generic icon
HLN
Haleon Plc Adr
9.52 42.70B 14.26B 1.98B 2.47B 0.4327
Drug Manufacturers - Specialty & Generic icon
TEVA
Teva Pharmaceutical Industries Ltd Adr
29.79 34.62B 16.70B -157.13M 1.19B -0.1446
Drug Manufacturers - Specialty & Generic icon
UTHR
United Therapeutics Corp
493.99 21.03B 3.08B 1.24B 1.07B 25.61

Amphastar Pharmaceuticals Inc Stock (AMPH) Upgrades & Downgrades

Date Action Analyst Rating Change
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

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Dec 10, 2025

Amphastar Pharmaceuticals (NASDAQ:AMPH) Upgraded to "Hold" at Barclays - MarketBeat

Dec 10, 2025
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Dec 10, 2025

Is Amphastar Pharmaceuticals Mispriced After a Tough Year and Promising Cash Flow Outlook in 2025? - Sahm

Dec 10, 2025
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Dec 09, 2025

Barclays Initiates Coverage of Amphastar Pharmaceuticals (AMPH) with Equal-Weight Recommendation - Nasdaq

Dec 09, 2025
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Dec 09, 2025

Amphastar Pharmaceuticals (NASDAQ:AMPH) Coverage Initiated by Analysts at Barclays - MarketBeat

Dec 09, 2025
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Dec 09, 2025

Barclays Initiates Amphastar Pharmaceuticals at Equalweight With $30 Price Target - marketscreener.com

Dec 09, 2025
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Dec 09, 2025

Marshall Wace LLP Sells 183,037 Shares of Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Dec 09, 2025
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Dec 09, 2025

Amphastar Pharmaceuticals (NASDAQ:AMPH) Stock Falls 5.2% in Past Week as One-year Earnings and Shareholder Returns Continue Downward Trend - 富途牛牛

Dec 09, 2025
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Dec 08, 2025

American Century Companies Inc. Sells 74,832 Shares of Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Dec 08, 2025
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Dec 08, 2025

Is Amphastar Pharmaceuticals Stock Built to Withstand a Pullback? - Trefis

Dec 08, 2025
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Dec 08, 2025

Amphastar Pharmaceuticals, Inc. $AMPH Shares Bought by Quantbot Technologies LP - MarketBeat

Dec 08, 2025
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Dec 07, 2025

Why (AMPH) Price Action Is Critical for Tactical Trading - news.stocktradersdaily.com

Dec 07, 2025
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Dec 06, 2025

Would You Still Hold Amphastar Pharmaceuticals Stock If It Fell 30%? - Trefis

Dec 06, 2025
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Dec 06, 2025

Capital Fund Management S.A. Takes $931,000 Position in Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Dec 06, 2025
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Dec 05, 2025

Can DefenCath Continue to Aid CorMedix's Long-Term Growth Ahead? - Yahoo Finance

Dec 05, 2025
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Dec 05, 2025

How Amphastar Pharmaceuticals Inc. (29A) stock expands through international marketsOptions Play & Free Community Supported Trade Ideas - Newser

Dec 05, 2025
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Dec 04, 2025

Will Amphastar Pharmaceuticals Inc. stock outperform Nasdaq indexJuly 2025 News Drivers & Free High Accuracy Swing Entry Alerts - Newser

Dec 04, 2025
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Dec 04, 2025

Will Amphastar Pharmaceuticals Inc. (29A) stock recover faster than industry2025 Retail Activity & Daily Profit Focused Stock Screening - Newser

Dec 04, 2025
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Dec 04, 2025

Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Receives Average Rating of "Hold" from Analysts - MarketBeat

Dec 04, 2025
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Dec 04, 2025

Amphastar Pharmaceuticals (AMPH) Stock Trades Up, Here Is Why - The Globe and Mail

Dec 04, 2025
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Dec 03, 2025

Will Amphastar Pharmaceuticals Inc. (29A) stock benefit from infrastructure bill2025 Price Targets & Capital Protection Trade Alerts - Newser

Dec 03, 2025
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Dec 02, 2025

Trend Recap: How strong is Amphastar Pharmaceuticals Inc stock revenue growth - BỘ NỘI VỤ

Dec 02, 2025
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Dec 02, 2025

Will Amphastar Pharmaceuticals Inc. (29A) stock deliver stable dividendsWeekly Trade Recap & Precise Buy Zone Identification - Newser

Dec 02, 2025
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Dec 02, 2025

Is Amphastar Pharmaceuticals Inc. stock a good choice for value investorsTrade Analysis Report & Long-Term Safe Return Strategies - Newser

Dec 02, 2025
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Dec 02, 2025

Is Amphastar Pharmaceuticals Inc. (29A) stock at risk of policy regulationQuarterly Performance Summary & High Yield Equity Trading Tips - Newser

Dec 02, 2025
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Dec 02, 2025

Can Amphastar Pharmaceuticals Inc. (29A) stock double in coming years2025 Price Targets & Real-Time Price Movement Reports - Newser

Dec 02, 2025
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Dec 01, 2025

Creative Planning Acquires 22,493 Shares of Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Dec 01, 2025
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Dec 01, 2025

Geode Capital Management LLC Buys 18,161 Shares of Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Dec 01, 2025
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Nov 29, 2025

Amphastar Pharmaceuticals (AMPH) Jumps 6.5% After Q3 Beat and Conference Reveal—Has the Investment Case Shifted? - Yahoo Finance

Nov 29, 2025
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Nov 29, 2025

Amphastar Pharmaceuticals (AMPH) Is Up 6.5% After Earnings Beat and Pipeline Expansion—What's Changed? - Sahm

Nov 29, 2025
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Nov 28, 2025

A Look at Amphastar Pharmaceuticals (AMPH) Valuation Following Strong Quarterly Results and Pipeline Progress - Yahoo Finance

Nov 28, 2025
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Nov 28, 2025

VP Zhou Files To Sell 20,000 Of Amphastar Pharmaceuticals Inc [AMPH] - TradingView

Nov 28, 2025
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Nov 28, 2025

SG Americas Securities LLC Acquires Shares of 24,448 Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Nov 28, 2025
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Nov 28, 2025

A Look at Amphastar Pharmaceuticals’s Valuation After Upbeat Earnings and Strategic Pipeline Moves (AMPH) - Sahm

Nov 28, 2025
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Nov 28, 2025

Will Amphastar’s (AMPH) Q3 Earnings Beat Amid Margin Pressure Shift Its Competitive Narrative? - Sahm

Nov 28, 2025
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Nov 27, 2025

Does Amphastar’s New Product Approvals Signal a Turning Point for the Stock in 2025? - Sahm

Nov 27, 2025
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Nov 27, 2025

Magnetar Financial LLC Invests $306,000 in Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Nov 27, 2025
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Nov 27, 2025

Amphastar (AMPH) Q3 2025 Earnings Call Transcript - The Globe and Mail

Nov 27, 2025
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Nov 26, 2025

Richard Prins Sells 4,179 Shares of Amphastar Pharmaceuticals (NASDAQ:AMPH) Stock - MarketBeat

Nov 26, 2025
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Nov 26, 2025

Understanding Momentum Shifts in (AMPH) - news.stocktradersdaily.com

Nov 26, 2025
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Nov 25, 2025

Amphastar pharma director Prins sells $113,253 in shares By Investing.com - Investing.com Canada

Nov 25, 2025
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Nov 25, 2025

[Form 4] Amphastar Pharmaceuticals, Inc. Insider Trading Activity - Stock Titan

Nov 25, 2025
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Nov 25, 2025

Amphastar Pharmaceuticals Director Sells Shares - TradingView

Nov 25, 2025
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Nov 25, 2025

Dir Prins Sells 4,179 ($113.3K) Of Amphastar Pharmaceuticals Inc [AMPH] - TradingView

Nov 25, 2025
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Nov 24, 2025

Amphastar Pharmaceuticals- Growth has been impressive, Can it continue? - Yahoo Finance

Nov 24, 2025
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Nov 24, 2025

Amphastar Pharmaceuticals- Growth has been impressive, Can it c - GuruFocus

Nov 24, 2025
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Nov 24, 2025

Dynamic Technology Lab Private Ltd Takes Position in Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Nov 24, 2025
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Nov 24, 2025

Amphastar Pharmaceuticals to Present at the 37th Annual Piper Sandler Healthcare Conference - standard-journal.com

Nov 24, 2025
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Nov 23, 2025

Amphastar Pharmaceuticals, Inc. (AMPH) Stock forecasts - Yahoo Finance UK

Nov 23, 2025
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Nov 23, 2025

Amphastar Shares Surge Following Impressive Quarterly Earnings Report - Ad-hoc-news.de

Nov 23, 2025
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Nov 22, 2025

Amphastar stock hits 52-week low at $31.54 amid market challenges - MSN

Nov 22, 2025
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Nov 21, 2025

The Ensign Group, Illumina, and Amphastar Pharmaceuticals Shares Skyrocket, What You Need To Know - The Globe and Mail

Nov 21, 2025

Amphastar Pharmaceuticals Inc Stock (AMPH) Financials Data

Revenue

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Net Income

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Cash Flow

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EPS

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$37.21
price down icon 1.48%
$21.29
price up icon 0.09%
drug_manufacturers_specialty_generic RDY
$14.02
price down icon 0.50%
$11.65
price up icon 0.52%
$152.80
price down icon 1.26%
$493.99
price up icon 1.12%
Cap:     |  Volume (24h):