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AMPH – amphastar pharmaceuticals, inc. (US:NASDAQ)
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Main News & Impact Reports
Date
Time
Symbol
Headline
Impact
5/14
08:40 am
amph
Amphastar Pharmaceuticals (AMPH) had its "equal weight" rating reaffirmed by Wells Fargo & Company. They now have a $19.00 price target on the stock, down from $30.00.
Medium
Report
Amphastar Pharmaceuticals (AMPH) had its "equal weight" rating reaffirmed by Wells Fargo & Company. They now have a $19.00 price target on the stock, down from $30.00.
5/14
02:16 am
amph
Amphastar Pharmaceuticals Tackles BAQSIMI Discount Pressure, Keeps Sales Outlook [Yahoo! Finance]
Medium
Report
Amphastar Pharmaceuticals Tackles BAQSIMI Discount Pressure, Keeps Sales Outlook [Yahoo! Finance]
5/13
08:51 pm
amph
Amphastar Pharmaceuticals, Inc. (AMPH) Presents at Bank of America Global Healthcare Conference 2026 Transcript [Seeking Alpha]
Medium
Report
Amphastar Pharmaceuticals, Inc. (AMPH) Presents at Bank of America Global Healthcare Conference 2026 Transcript [Seeking Alpha]
5/11
02:26 pm
amph
Amphastar Pharmaceuticals (AMPH) had its "neutral" rating reaffirmed by Piper Sandler. They now have a $21.00 price target on the stock, down from $25.00.
Low
Report
Amphastar Pharmaceuticals (AMPH) had its "neutral" rating reaffirmed by Piper Sandler. They now have a $21.00 price target on the stock, down from $25.00.
5/11
08:12 am
amph
Earnings Miss: Amphastar Pharmaceuticals, Inc. Missed EPS By 75% And Analysts Are Revising Their Forecasts [Yahoo! Finance]
Low
Report
Earnings Miss: Amphastar Pharmaceuticals, Inc. Missed EPS By 75% And Analysts Are Revising Their Forecasts [Yahoo! Finance]
5/9
04:44 am
amph
Amphastar Pharmaceuticals (AMPH) Is Up 9.4% After Profit Falls Despite New Drug Launches And Licensing Deals [Yahoo! Finance]
Low
Report
Amphastar Pharmaceuticals (AMPH) Is Up 9.4% After Profit Falls Despite New Drug Launches And Licensing Deals [Yahoo! Finance]
5/8
08:07 am
amph
Amphastar Pharmaceuticals (AMPH) had its "hold" rating reaffirmed by Needham & Company LLC.
Medium
Report
Amphastar Pharmaceuticals (AMPH) had its "hold" rating reaffirmed by Needham & Company LLC.
5/7
08:14 pm
amph
Amphastar (AMPH) Q1 2026 Earnings Transcript [Yahoo! Finance]
Medium
Report
Amphastar (AMPH) Q1 2026 Earnings Transcript [Yahoo! Finance]
Date
Time
Symbol
Company Name
Action
%Chg
5/7/2026
04:05 pm
amph
amphastar pharmaceuticals, inc.
MISS
Report
-20.9%
amphastar pharmaceuticals, inc.
2/26/2026
04:05 pm
amph
amphastar pharmaceuticals, inc.
MISS
Report
-23.6%
amphastar pharmaceuticals, inc.
11/6/2025
04:05 pm
amph
amphastar pharmaceuticals, inc.
BEAT
Report
-0.8%
amphastar pharmaceuticals, inc.
8/7/2025
04:05 pm
amph
amphastar pharmaceuticals, inc.
BEAT
Report
8.2%
amphastar pharmaceuticals, inc.
Date
Time
Action
From
To
Firm
Impact
%Chg
Date
Time
Symbol
Headline
Impact
5/7
04:49 pm
amph
Form 10-Q Amphastar Pharmaceutical For: Mar 31
High
Report
Form 10-Q Amphastar Pharmaceutical For: Mar 31
5/7
04:23 pm
amph
Form 8-K Amphastar Pharmaceutical For: May 07
High
Report
Form 8-K Amphastar Pharmaceutical For: May 07
4/13
04:41 pm
amph
Form ARS Amphastar Pharmaceutical For: Dec 31
Low
Report
Form ARS Amphastar Pharmaceutical For: Dec 31
4/13
04:30 pm
amph
Form DEFA14A Amphastar Pharmaceutical
Low
Report
Form DEFA14A Amphastar Pharmaceutical
4/13
04:18 pm
amph
Form DEF 14A Amphastar Pharmaceutical For: Jun 01
Low
Report
Form DEF 14A Amphastar Pharmaceutical For: Jun 01
3/26
03:46 pm
amph
Form SCHEDULE 13G/A Amphastar Pharmaceutical Filed by: VANGUARD GROUP INC
Low
Report
Form SCHEDULE 13G/A Amphastar Pharmaceutical Filed by: VANGUARD GROUP INC
3/17
08:18 pm
amph
Form 4 Amphastar Pharmaceutical For: Mar 15 Filed by: Liawatidewi Yakob
Medium
Report
Form 4 Amphastar Pharmaceutical For: Mar 15 Filed by: Liawatidewi Yakob
3/17
06:16 pm
amph
Form 4 Amphastar Pharmaceutical For: Mar 15 Filed by: Zhou Rong
Low
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Form 4 Amphastar Pharmaceutical For: Mar 15 Filed by: Zhou Rong
Stock Stats
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Main News & Impact Reports
TOP News Gainers
3/16
Form 10-K Amphastar Pharmaceutical For: Dec 31
11.3%
4/27 Amphastar Pharmaceuticals, Inc. Receives FDA Approval for Epinephrine Injection, USP 30mg/30mL (1mg/mL) Multiple Dose Vial 7.5%
8/7 Q2/2019 6/30/2019 EPS 0.080 ZacksConsensus 0.030 ActVsEst 0.050 - Beat 7.0%
11/8 Amphastar Pharmaceuticals Inc (AMPH) Q3 2019 Earnings Call Transcript [The Motley Fool] 4.9%
3/18 Form 4 Amphastar Pharmaceutical For: Mar 16 Filed by: Liawatidewi Yakob 4.5%
3/3 Form 4 Amphastar Pharmaceutical For: Mar 02 Filed by: Petersen Floyd F. 3.9%
4/9 Amphastar Pharmaceuticals to Present at the 19th Annual Needham Virtual Healthcare Conference 3.8%
8/16 Form 4 Amphastar Pharmaceutical For: Aug 15 Filed by: PETERS WILLIAM J 3.4%
9/9 Form 4 Amphastar Pharmaceutical For: Sep 05 Filed by: Liawatidewi Yakob 3.1%
3/12 Q4/2019 12/31/2019 EPS 0.070 ZacksConsensus 0.050 ActVsEst 0.020 - Beat 2.3%
4/27 Amphastar Pharmaceuticals, Inc. Receives FDA Approval for Epinephrine Injection, USP 30mg/30mL (1mg/mL) Multiple Dose Vial 7.5%
8/7 Q2/2019 6/30/2019 EPS 0.080 ZacksConsensus 0.030 ActVsEst 0.050 - Beat 7.0%
11/8 Amphastar Pharmaceuticals Inc (AMPH) Q3 2019 Earnings Call Transcript [The Motley Fool] 4.9%
3/18 Form 4 Amphastar Pharmaceutical For: Mar 16 Filed by: Liawatidewi Yakob 4.5%
3/3 Form 4 Amphastar Pharmaceutical For: Mar 02 Filed by: Petersen Floyd F. 3.9%
4/9 Amphastar Pharmaceuticals to Present at the 19th Annual Needham Virtual Healthcare Conference 3.8%
8/16 Form 4 Amphastar Pharmaceutical For: Aug 15 Filed by: PETERS WILLIAM J 3.4%
9/9 Form 4 Amphastar Pharmaceutical For: Sep 05 Filed by: Liawatidewi Yakob 3.1%
3/12 Q4/2019 12/31/2019 EPS 0.070 ZacksConsensus 0.050 ActVsEst 0.020 - Beat 2.3%
TOP News Decliners
3/17
Form 4 Amphastar Pharmaceutical For: Mar 15 Filed by: Zhou Rong
-11.9%
3/12 Amphastar Pharmaceuticals Inc (NASDAQ: AMPH) was upgraded by analysts at BidaskClub from a "sell" rating to a "hold" rating. -9.3%
2/28 Amphastar Pharmaceuticals Inc (NASDAQ: AMPH) was upgraded by analysts at BidaskClub from a "strong sell" rating to a "sell" rating. -9.3%
3/13 Amphastar Pharmaceuticals Inc (NASDAQ: AMPH) was upgraded by analysts at Zacks Investment Research from a "hold" rating to a "buy" rating. They now have a $16.00 price target on the stock. -8.2%
11/7 Form 8-K Amphastar Pharmaceutical For: Nov 07 -8.0%
5/31 Amphastar Pharmaceuticals to Present at the Jefferies 2019 Healthcare Conference -7.3%
5/12 Amphastar Pharmaceuticals, Inc. (AMPH) Q1 2019 Results - Earnings Call Transcript [Seeking Alpha] -6.8%
11/8 Form 10-Q Amphastar Pharmaceutical For: Sep 30 -5.8%
1/29 Amphastar Pharmaceuticals Inc (NASDAQ: AMPH) had its "hold" rating re-affirmed by analysts at Needham & Company LLC. -3.1%
6/10 Form 4 Amphastar Pharmaceutical For: Jun 07 Filed by: Lee Howard -3.1%
3/12 Amphastar Pharmaceuticals Inc (NASDAQ: AMPH) was upgraded by analysts at BidaskClub from a "sell" rating to a "hold" rating. -9.3%
2/28 Amphastar Pharmaceuticals Inc (NASDAQ: AMPH) was upgraded by analysts at BidaskClub from a "strong sell" rating to a "sell" rating. -9.3%
3/13 Amphastar Pharmaceuticals Inc (NASDAQ: AMPH) was upgraded by analysts at Zacks Investment Research from a "hold" rating to a "buy" rating. They now have a $16.00 price target on the stock. -8.2%
11/7 Form 8-K Amphastar Pharmaceutical For: Nov 07 -8.0%
5/31 Amphastar Pharmaceuticals to Present at the Jefferies 2019 Healthcare Conference -7.3%
5/12 Amphastar Pharmaceuticals, Inc. (AMPH) Q1 2019 Results - Earnings Call Transcript [Seeking Alpha] -6.8%
11/8 Form 10-Q Amphastar Pharmaceutical For: Sep 30 -5.8%
1/29 Amphastar Pharmaceuticals Inc (NASDAQ: AMPH) had its "hold" rating re-affirmed by analysts at Needham & Company LLC. -3.1%
6/10 Form 4 Amphastar Pharmaceutical For: Jun 07 Filed by: Lee Howard -3.1%
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