23.18

2.77% -0.66

After Hours: 22.91 -0.27 -1.16%

Amphastar Pharmaceuticals Inc (AMPH)

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

Amphastar Pharmaceuticals Inc stock is traded at $23.18, with a volume of 626.12K. It is down -2.77% in the last 24 hours and up +16.48% 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:

$23.84

Open:

$23.47

24h Volume:

626.12K

Relative Volume:

1.32

Market Cap:

$986.03M

Revenue:

$720.53M

Net Income/Loss:

$79.23M

P/E Ratio:

13.92

EPS:

1.6648

Net Cash Flow:

$132.94M

1W Performance:

+5.32%

1M Performance:

+16.48%

6M Performance:

+16.13%

1Y Performance:

-20.59%

1-Day Range:

$23.07

$23.74

1-Week Range:

$21.52

$23.92

52-Week Range:

$16.64

$29.78

Amphastar Pharmaceuticals Inc Stock (AMPH) Company Profile

Name

Amphastar Pharmaceuticals Inc

Sector

Healthcare (1074)

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	23.18	922.22M	720.53M	79.23M	132.94M	1.6648
TAK Takeda Pharmaceutical Co Adr	18.45	57.90B	29.91B	1.30B	3.49B	0.4056
TEVA Teva Pharmaceutical Industries Ltd Adr	36.36	42.89B	17.53B	1.58B	444.18M	1.3457
HLN Haleon Plc Adr	9.60	43.41B	14.54B	2.22B	2.58B	0.4871
ZTS Zoetis Inc	75.81	31.00B	9.51B	2.64B	2.14B	6.0361
UTHR United Therapeutics Corp	487.61	22.35B	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

04:43 AM

Legal & General Group Plc Makes New $1.58 Million Investment in Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

04:43 AM

Sep 06, 2026

Amphastar Pharmaceuticals (AMPH) Rebounds In Focus, Is It Slightly Overvalued? - finance.yahoo.com

Sep 06, 2026

Bank of New York Mellon Corp Makes New Investment in Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Sep 06, 2026

Sep 05, 2026

Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH) Receives Consensus Recommendation of "Reduce" from Analysts - MarketBeat

Sep 05, 2026

Amphastar Pharmaceuticals (AMPH) Stock Looks Cheap With Earnings Doing The Heavy Lifting - Yahoo Finance

Sep 05, 2026

Sep 03, 2026

Rong Zhou Sells 3,187 Shares of Amphastar Pharmaceuticals (NASDAQ:AMPH) Stock - MarketBeat

Sep 03, 2026

Insider sells 3,187 shares at Amphastar (NASDAQ: AMPH) - Stock Titan

Sep 03, 2026

Sep 02, 2026

A Look at Amphastar Pharmaceuticals Inc (AMPH) After 3.3% Gain -- GF Value $35.96 vs Price $23.74 - GuruFocus

Sep 02, 2026

Empowered Funds LLC Invests $3.29 Million in Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Sep 02, 2026

Sep 01, 2026

Amphastar (NASDAQ: AMPH) VP plans Rule 144 stock sale led by 10,000-share option exercise - Stock Titan

Sep 01, 2026

Amphastar Pharmaceuticals to Present at the Wells Fargo 21st Annual Healthcare Conference - Stock Titan

Sep 01, 2026

Aug 31, 2026

Zacks Industry Outlook Highlights Amphastar Pharmaceuticals, Sandoz and Viatris - Yahoo Finance

Aug 31, 2026

Bank of America Corp DE Acquires 46,149 Shares of Amphastar Pharmaceuticals, Inc. $AMPH - MarketBeat

Aug 31, 2026

Aug 29, 2026