Index RUT P/E 10.10 EPS (ttm) 2.67 Insider Own 26.39% Shs Outstand 46.49M Perf Week -5.00%
Market Cap 1.25B Forward P/E 7.12 EPS next Y 3.79 Insider Trans -0.02% Shs Float 34.22M Perf Month -9.34%
Enterprise Value 1.68B PEG 4.70 EPS next Q 0.85 Inst Own 72.38% Short Float 12.14% Perf Quarter 5.35%
Income 134.71M P/S 1.74 EPS this Y -13.93% Inst Trans -1.72% Short Ratio 7.98 Perf Half Y -1.39%
Sales 722.68M P/B 1.66 EPS next Y 14.10% ROA 8.67% Short Interest 4.16M Perf YTD -27.34%
Book/sh 16.29 P/C 5.36 EPS next 5Y 2.15% ROE 18.32% 52W High 53.96 -50.00% Perf Year -43.90%
Cash/sh 5.04 P/FCF 11.18 EPS past 3/5Y 34.92% 25.59% ROIC 9.59% 52W Low 20.39 32.35% Perf 3Y -7.06%
Dividend Est. - EV/EBITDA 6.92 Sales past 3/5Y 18.69% 17.82% Gross Margin 47.96% Volatility 3.38% 3.16% Perf 5Y 38.57%
Dividend TTM - EV/Sales 2.32 EPS Y/Y TTM -18.10% Oper. Margin 25.14% ATR (14) 0.98 Perf 10Y 95.65%
Dividend Ex-Date - Quick Ratio 2.21 Sales Y/Y TTM 1.37% Profit Margin 18.64% RSI (14) 41.80 Recom 2.00
Dividend Gr. 3/5Y - - Current Ratio 3.29 EPS Q/Q -11.58% SMA20 -7.78% Beta 0.77 Target Price 32.67
Payout 0.00% Debt/Eq 0.87 Sales Q/Q -4.38% SMA50 4.33% Rel Volume 1.77 Prev Close 27.00
Employees 2028 LT Debt/Eq 0.85 Earnings Aug 07 AMC SMA200 -7.30% Avg Volume 520.94K Price 26.98
IPO Jun 25, 2014 Option/Short Yes / Yes EPS/Sales Surpr. 14.60% 0.25% Trades
Volume 920,909 Change -0.07%
Date
Action
Analyst
Rating Change
Price Target Change
Aug-12-25 Upgrade Needham
Hold → Buy
$36
May-12-25 Downgrade JP Morgan
Overweight → Neutral
$30
Feb-04-25 Downgrade Piper Sandler
Overweight → Neutral
$66 → $36
Nov-22-24 Initiated Wells Fargo
Equal Weight
$55
Mar-05-24 Initiated JP Morgan
Overweight
$60
Nov-17-23 Initiated BofA Securities
Neutral
$63
Jul-25-23 Resumed Jefferies
Buy
$70
Oct-21-22 Resumed Jefferies
Buy
$36
Jul-29-22 Initiated CapitalOne
Overweight
$44
Jan-07-22 Upgrade Piper Sandler
Neutral → Overweight
$21 → $28
Jan-08-21 Downgrade Wells Fargo
Overweight → Equal Weight
$21
Oct-05-20 Upgrade Northland Capital
Market Perform → Outperform
$24
May-01-20 Initiated Northland Capital
Outperform
$23
Mar-13-19 Downgrade Piper Jaffray
Overweight → Neutral
$24 → $23
Mar-13-19 Downgrade Needham
Buy → Hold
Aug-10-18 Reiterated Needham
Buy
$24 → $22
Mar-13-18 Reiterated Needham
Buy
$23 → $24
Dec-01-17 Reiterated Needham
Buy
$20 → $23
Nov-09-17 Downgrade Raymond James
Outperform → Mkt Perform
Sep-27-17 Reiterated Needham
Buy
$18 → $20
Show Previous Ratings
Sep-15-25 10:27AM
Sep-04-25 11:32PM
Sep-02-25 10:18AM
08:46AM
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Aug-28-25 06:00AM
Aug-14-25 01:42AM
Aug-13-25 07:33AM
(Pharmaceutical Technology)
Aug-12-25 02:20PM
01:38PM
06:00AM
03:25AM
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06:00AM
Aug-08-25 11:00PM
09:40AM
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04:57AM
Aug-07-25 05:30PM
05:15PM
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(Associated Press Finance)
04:05PM
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05:25PM
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(Thomson Reuters StreetEvents)
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07:22PM
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(Associated Press Finance)
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(Associated Press Finance)
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Nov-07-24 01:18PM
(Thomson Reuters StreetEvents) -13.69%
02:24AM
Nov-06-24 06:00PM
05:35PM
04:33PM
(Associated Press Finance)
04:05PM
Nov-05-24 07:44AM
Oct-30-24 10:01AM
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Sep-07-24 01:43AM
Aug-28-24 04:10PM
Aug-07-24 07:30PM
05:30PM
04:29PM
(Associated Press Finance)
04:05PM
Amphastar Pharmaceuticals, Inc. engages in developing, manufacturing, marketing, and selling technically challenging generic and proprietary injectable, inhalation, and intranasal products, and insulin active pharmaceutical ingredient. It operates through Finished Pharmaceutical Products and Active Pharmaceutical Ingredients Products segments. The Finished Pharmaceutical Products segment manufactures, markets, and distributes Primatene Mist, enoxaparin, naloxone, phytonadione, lidocaine, and other critical and non-critical care drugs. The Active Pharmaceutical Ingredients Products segment offers RHI API and porcine insulin API for external customers and internal product development. The company was founded by Zi-Ping Luo and Yong Feng Zhang on February 29, 1996 and is headquartered in Rancho Cucamonga, CA.
Insider Trading
Relationship
Date
Transaction
Cost
#Shares
Value ($)
#Shares Total
SEC Form 4
Petersen Floyd F. Director Sep 02 '25 Sale 30.98 500 15,492 76,531 Sep 03 04:20 PM Petersen Floyd F. Director Sep 02 '25 Proposed Sale 30.90 500 15,450 Sep 02 04:08 PM Petersen Floyd F. Director Aug 01 '25 Sale 20.83 500 10,416 77,031 Aug 04 07:17 PM Petersen Floyd F. Director Aug 01 '25 Proposed Sale 20.86 500 10,430 Aug 01 04:08 PM Petersen Floyd F. Director Jul 02 '25 Sale 23.47 500 11,734 77,531 Jul 03 05:30 PM Petersen Floyd F. Director Jul 02 '25 Proposed Sale 23.43 500 11,715 Jul 02 04:01 PM Zhang Jack Y. CEO & CHIEF SCIENTIFIC OFFICER Jun 13 '25 Option Exercise 13.03 200,000 2,606,000 2,847,659 Jun 16 05:19 PM Petersen Floyd F. Director Jun 02 '25 Sale 25.67 500 12,835 72,909 Jun 04 06:39 PM Petersen Floyd F. Director Jun 02 '25 Proposed Sale 25.61 500 12,805 Jun 02 04:06 PM Petersen Floyd F. Director May 01 '25 Sale 24.08 500 12,041 73,409 May 02 08:27 PM Petersen Floyd F. Director May 01 '25 Proposed Sale 24.19 500 12,095 May 01 04:03 PM Petersen Floyd F. Director Apr 01 '25 Sale 28.38 500 14,190 73,909 Apr 02 06:45 PM Petersen Floyd F. Director Apr 01 '25 Proposed Sale 28.86 500 14,430 Apr 01 04:01 PM Zhang Jack Y. CEO & CHIEF SCIENTIFIC OFFICER Mar 14 '25 Option Exercise 14.69 290,477 4,267,107 2,899,859 Mar 18 07:13 PM Zhang Jack Y. CEO & CHIEF SCIENTIFIC OFFICER Mar 14 '25 Option Exercise 14.69 211,213 3,102,719 1,359,470 Mar 18 07:13 PM Petersen Floyd F. Director Mar 06 '25 Sale 27.99 1,000 27,986 74,409 Mar 07 04:01 PM PETERS WILLIAM J CFO, EVP & TREASURER Mar 04 '25 Option Exercise 13.35 7,490 99,992 101,594 Mar 06 05:00 PM PETERS WILLIAM J CFO, EVP & TREASURER Mar 04 '25 Sale 27.54 4,231 116,515 97,363 Mar 06 05:00 PM Petersen Floyd F. Director Mar 06 '25 Proposed Sale 27.80 1,000 27,800 Mar 06 04:02 PM PETERS WILLIAM J Officer Mar 04 '25 Proposed Sale 27.21 4,231 115,126 Mar 04 04:07 PM Zhou Rong SENIOR EVP, PRODUCTION CENTER Dec 13 '24 Option Exercise 11.33 8,000 90,640 126,469 Dec 16 05:22 PM Zhou Rong SENIOR EVP, PRODUCTION CENTER Dec 12 '24 Option Exercise 11.33 7,000 79,310 125,469 Dec 16 05:22 PM Zhou Rong SENIOR EVP, PRODUCTION CENTER Dec 13 '24 Sale 45.23 8,000 361,840 118,469 Dec 16 05:22 PM Zhou Rong SENIOR EVP, PRODUCTION CENTER Dec 12 '24 Sale 44.42 7,000 310,975 118,469 Dec 16 05:22 PM PRINS RICHARD K Director Dec 09 '24 Option Exercise 19.52 10,000 195,200 40,471 Dec 11 08:28 PM PRINS RICHARD K Director Dec 09 '24 Sale 43.77 10,000 437,702 30,471 Dec 11 08:28 PM Richard Prins Executive Dec 09 '24 Proposed Sale 44.00 10,000 440,000 Dec 09 11:37 AM Zhou Rong SENIOR EVP, PRODUCTION CENTER Nov 12 '24 Option Exercise 14.95 6,893 103,050 125,281 Nov 13 08:26 PM Zhou Rong SENIOR EVP, PRODUCTION CENTER Nov 12 '24 Sale 48.88 6,893 336,930 118,388 Nov 13 08:26 PM PRINS RICHARD K Director Nov 12 '24 Option Exercise 16.69 2,500 41,725 36,471 Nov 13 06:55 PM PRINS RICHARD K Director Nov 12 '24 Sale 48.80 5,000 243,986 31,471 Nov 13 06:55 PM Rong Zhou Executive Vice President Nov 12 '24 Proposed Sale 48.10 31,680 1,523,808 Nov 12 01:29 PM Richard Prins Director Nov 12 '24 Proposed Sale 48.10 5,000 240,500 Nov 12 01:29 PM Liawatidewi Yakob EVP CORP ADMIN CENTER Nov 06 '24 Option Exercise 13.03 5,214 67,938 80,152 Nov 08 07:02 PM Liawatidewi Yakob EVP CORP ADMIN CENTER Nov 06 '24 Sale 52.05 5,214 271,389 74,938 Nov 08 07:02 PM PETERS WILLIAM J CFO, EVP & TREASURER Nov 06 '24 Option Exercise 13.03 7,426 96,761 101,529 Nov 08 05:24 PM PETERS WILLIAM J CFO, EVP & TREASURER Nov 06 '24 Sale 52.05 7,426 386,523 94,103 Nov 08 05:24 PM Liawatidewi Yakob Director Nov 06 '24 Proposed Sale 52.05 5,214 271,389 Nov 06 04:54 PM PETERS WILLIAM J Officer Nov 06 '24 Proposed Sale 52.05 7,426 386,523 Nov 06 04:54 PM
