19.96
price up icon0.66%   0.13
after-market After Hours: 20.20 0.24 +1.20%
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Amphastar Pharmaceuticals Inc stock is traded at $19.96, with a volume of 592.45K. It is up +0.66% in the last 24 hours and down -30.23% 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:
$19.83
Open:
$19.97
24h Volume:
592.45K
Relative Volume:
1.48
Market Cap:
$917.21M
Revenue:
$723.31M
Net Income/Loss:
$111.63M
P/E Ratio:
8.8503
EPS:
2.2553
Net Cash Flow:
$111.01M
1W Performance:
-28.64%
1M Performance:
-30.23%
6M Performance:
-31.62%
1Y Performance:
-27.73%
1-Day Range:
Value
$19.56
$20.20
1-Week Range:
Value
$19.56
$28.17
52-Week Range:
Value
$19.56
$31.26

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 vs TAK, ZTS, HLN, TEVA, UTHR

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
Drug Manufacturers - Specialty & Generic icon
AMPH
Amphastar Pharmaceuticals Inc
19.96 911.23M 723.31M 111.63M 111.01M 2.2553
Drug Manufacturers - Specialty & Generic icon
TAK
Takeda Pharmaceutical Co Adr
18.22 57.12B 29.85B 776.90M 4.35B 0.2408
Drug Manufacturers - Specialty & Generic icon
ZTS
Zoetis Inc
125.96 53.16B 9.47B 2.67B 2.28B 6.0218
Drug Manufacturers - Specialty & Generic icon
HLN
Haleon Plc Adr
10.47 47.25B 14.54B 2.22B 2.58B 0.4879
Drug Manufacturers - Specialty & Generic icon
TEVA
Teva Pharmaceutical Industries Ltd Adr
32.91 37.59B 17.41B 1.43B 1.00B 1.2182
Drug Manufacturers - Specialty & Generic icon
UTHR
United Therapeutics Corp
490.21 21.85B 3.13B 1.27B 1.12B 26.39

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

pulisher
01:07 AM

AMPH SEC FilingsAmphastar Pharma 10-K, 10-Q, 8-K Forms - Stock Titan

01:07 AM
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11:38 AM

Amphastar Pharmaceuticals Hits Day Low of $19.83 Amid Price Pressure - Markets Mojo

11:38 AM
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08:33 AM

Amphastar Pharmaceuticals Stock Plummets to New 52-Week Low of $19.83 - Markets Mojo

08:33 AM
pulisher
06:11 AM

Royce & Associates LP Raises Stock Holdings in Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

06:11 AM
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06:05 AM

Amphastar Pharmaceuticals to Present at the Barclays 28th Annual Global Healthcare Conference - ACCESS Newswire

06:05 AM
pulisher
Mar 03, 2026

Amphastar Pharmaceuticals, Inc. (AMPH) Stock Analysis: Potential Upside of 38% Attracts Investor Attention - DirectorsTalk Interviews

Mar 03, 2026
pulisher
Mar 02, 2026

Wells Fargo Sees Amphastar Pharmaceuticals, Inc.'s (AMPH) AMP-007 as Key to Mid- to High-Single-Digit Growth - Finviz

Mar 02, 2026
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Mar 02, 2026

Wells Fargo Sees Amphastar Pharmaceuticals, Inc.’s (AMPH) AMP-007 as Key to Mid- to High-Single-Digit Growth - Yahoo Finance

Mar 02, 2026
pulisher
Mar 01, 2026

Cash per share of Amphastar Pharmaceuticals, Inc. – DUS:29A - TradingView

Mar 01, 2026
pulisher
Feb 28, 2026

Amphastar FDA Wins And Pipeline Expansion Contrast With Weak Earnings And Valuation - Yahoo Finance

Feb 28, 2026
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Feb 28, 2026

Amphastar: Higher Costs, Lower Growth, And A 'Value Trap' Label (NASDAQ:AMPH) - Seeking Alpha

Feb 28, 2026
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Feb 28, 2026

Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Q4 2025 Earnings Call Transcript - Insider Monkey

Feb 28, 2026
pulisher
Feb 28, 2026

Amphastar Pharmaceuticals Stock Hits New 12-Month Low After Analyst Downgrade - National Today

Feb 28, 2026
pulisher
Feb 28, 2026

AMPH Stock (-24%): Q4 Earnings Miss Sparks Aggressive Liquidation - Trefis

Feb 28, 2026
pulisher
Feb 28, 2026

Amphastar Pharmaceuticals Q4 2025 Report: Revenue Miss, Stock DeclineNews and Statistics - IndexBox

Feb 28, 2026
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Feb 28, 2026

Amphastar Pharmaceuticals (NASDAQ:AMPH) Hits New 12-Month Low After Analyst Downgrade - MarketBeat

Feb 28, 2026
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Feb 27, 2026

Amphastar stock hits 52-week low at $20.38 By Investing.com - Investing.com Australia

Feb 27, 2026
pulisher
Feb 27, 2026

Amphastar Pharmaceuticals (NASDAQ:AMPH) Issues Quarterly Earnings Results - MarketBeat

Feb 27, 2026
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Feb 27, 2026

Amphastar Pharmaceuticals Inc (29A.BE) Stock Price, News, Quote & History - Yahoo Finance

Feb 27, 2026
pulisher
Feb 27, 2026

Amphastar stock hits 52-week low at $20.38 - Investing.com

Feb 27, 2026
pulisher
Feb 27, 2026

Why Amphastar Pharmaceuticals (AMPH) Shares Are Plunging Today - Finviz

Feb 27, 2026
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Feb 27, 2026

Wells Fargo & Company Has Lowered Expectations for Amphastar Pharmaceuticals (NASDAQ:AMPH) Stock Price - MarketBeat

Feb 27, 2026
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Feb 27, 2026

Amphastar Pharmaceuticals (NASDAQ:AMPH) Shares Gap Down Following Analyst Downgrade - MarketBeat

Feb 27, 2026
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Feb 27, 2026

Amphastar Pharmaceuticals (NASDAQ:AMPH) Price Target Lowered to $30.00 at Needham & Company LLC - MarketBeat

Feb 27, 2026
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Feb 27, 2026

Amphastar Pharmaceuticals, Inc. Q4 2025 Earnings Call Summary - Yahoo Finance

Feb 27, 2026
pulisher
Feb 27, 2026

Needham cuts Amphastar stock price target on Q4 miss, weak sales - Investing.com

Feb 27, 2026
pulisher
Feb 27, 2026

TD Asset Management Inc Sells 103,038 Shares of Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Feb 27, 2026
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Feb 27, 2026

12 Health Care Stocks Moving In Friday's Pre-Market Session - Benzinga

Feb 27, 2026
pulisher
Feb 27, 2026

Amphastar Stock Pre-Market (-15%): Q4 Earnings and Revenue Miss - Trefis

Feb 27, 2026
pulisher
Feb 27, 2026

Amphastar Pharmaceuticals (AMPH) Margin Compression Reinforces Bearish Narratives Despite Low 9.5x P/E - Sahm

Feb 27, 2026
pulisher
Feb 26, 2026

Amphastar Pharmaceuticals Q4 Earnings Call Highlights - MarketBeat

Feb 26, 2026
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Feb 26, 2026

Compared to Estimates, Amphastar (AMPH) Q4 Earnings: A Look at Key Metrics - Yahoo Finance

Feb 26, 2026
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Feb 26, 2026

Amphastar Pharmaceuticals Inc reports results for the quarter ended September 30Earnings Summary - TradingView

Feb 26, 2026
pulisher
Feb 26, 2026

Earnings call transcript: Amphastar’s Q4 2025 Misses Estimates, Stock Dips By Investing.com - Investing.com Canada

Feb 26, 2026
pulisher
Feb 26, 2026

Amphastar (AMPH) Q4 2025 Earnings Call Transcript - AOL.com

Feb 26, 2026
pulisher
Feb 26, 2026

Amphastar Pharmaceuticals (NASDAQ:AMPH) Misses Q4 CY2025 Revenue Estimates, Stock Drops 11.7% - Finviz

Feb 26, 2026
pulisher
Feb 26, 2026

Amphastar Pharmaceuticals (AMPH) Q4 Earnings and Revenues Lag Estimates - Yahoo Finance

Feb 26, 2026
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Feb 26, 2026

Amphastar Pharmaceuticals Inc. (AMPH) Stock Falls on Q4 2025 Earnings - Quiver Quantitative

Feb 26, 2026
pulisher
Feb 26, 2026

Amphastar Pharmaceuticals Inc. (AMPH) stock falls on Q4 2025 Earnings - Quiver Quantitative

Feb 26, 2026
pulisher
Feb 26, 2026

Amphastar Pharmaceuticals Reports Financial Results for Q4 and Full Year 2025 - TradingView

Feb 26, 2026
pulisher
Feb 26, 2026

Earnings Flash (AMPH) Amphastar Pharmaceuticals, Inc. Reports Q4 Revenue $183.1M, vs. FactSet Est of $190.1M - marketscreener.com

Feb 26, 2026
pulisher
Feb 26, 2026

Amphastar Pharmaceuticals Reports Financial Results for the Three Months and Full Year Ended December 31, 2025 - ACCESS Newswire

Feb 26, 2026
pulisher
Feb 26, 2026

Amphastar Pharmaceuticals Q4 2025 Earnings: Release Date & Analyst OutlookNews and Statistics - IndexBox

Feb 26, 2026
pulisher
Feb 26, 2026

Amphastar earnings on deck: Can pipeline offset flat growth? By Investing.com - Investing.com UK

Feb 26, 2026
pulisher
Feb 26, 2026

Amphastar: Fourth Quarter Financial Overview - Bitget

Feb 26, 2026
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Feb 25, 2026

Insights Ahead: Amphastar Pharma's Quarterly Earnings - Benzinga

Feb 25, 2026
pulisher
Feb 25, 2026

Amphastar Pharmaceuticals (AMPH) Reports Earnings Tomorrow: What To Expect - Yahoo Finance UK

Feb 25, 2026
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Feb 24, 2026

Amphastar Pharmaceuticals, Inc. (AMPH) Stock Analysis: Exploring a 14.60% Potential Upside - DirectorsTalk Interviews

Feb 24, 2026
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Feb 24, 2026

Amphastar Announces FDA Approval for Ipratropium Bromide HFA - ACCESS Newswire

Feb 24, 2026
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Feb 24, 2026

FDA clears Amphastar rival to Atrovent inhaler, 180-day exclusivity - Stock Titan

Feb 24, 2026
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Feb 22, 2026

(AMPH) Movement Within Algorithmic Entry Frameworks - Stock Traders Daily

Feb 22, 2026

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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drug_manufacturers_specialty_generic RDY
$14.28
price up icon 0.21%
$24.44
price down icon 1.77%
drug_manufacturers_specialty_generic RGC
$25.45
price up icon 6.09%
$133.44
price up icon 1.75%
$14.71
price down icon 1.21%
$490.21
price down icon 1.69%
Cap:     |  Volume (24h):