$AMPH
Amphastar Pharmaceuticals, Inc.
XNAS•Health Care•Pharmaceutical Preparations
$26.05
▼-2.65%-$0.710
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Plans & pricingDonateAmphastar Pharmaceuticals, Inc.
XNAS•Health Care•Pharmaceutical Preparations
Why is AMPH down today? It is at $26.05 (-2.65%), and our scanner flagged it 50 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment AMPH spikes, and full due diligence on AMPH — key stats, earnings, dilution and insider activity. Free.
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Here is the latest on AMPH from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for AMPH today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
Likely catalystAmphastar Pharmaceuticals, Inc.: Q2 FY2026 results, three months to Jun 30, 2026, from an SEC filing. Read it →Latest filing4Insider trade (Form 4)Sep 23, 2026 · 20 days agoSources: float & market cap via Polygon · short interest via FINRA · borrow & shortability via Alpaca · SSR from Reg SHO 201 · filings & dilution via SEC EDGAR · analysts via Nasdaq.
Auto-generated from public data for research and education. Not investment advice.
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Peters William J Officer | Sold (automatic/other) | -4K | sold 2.4% | 169K | $103K at $25.00 | Sep 21, 26 |
Zhou Rong Officer | Sold (automatic/other) | -10K 0.02% of company | sold 5.6% | 169K | $239K at $23.94 | Sep 16, 26 |
Zhou Rong Officer | Other | 10K 0.02% of company | added 5.9% | 179K | $134K at $13.35 | Sep 16, 26 |
Zhou Rong Officer | Sold (automatic/other) | -3K | sold 1.8% | 169K | $75K at $23.63 | Sep 2, 26 |
Prins Richard K Director | Sold (automatic/other) | -8K 0.02% of company | sold 21% | 30K | $162K at $20.30 | Aug 11, 26 |
Peters William J Officer | Sold (automatic/other) | -8K 0.02% of company | sold 4.5% | 173K | $184K at $22.48 | Aug 7, 26 |
Peters William J Officer | Other | 5K 0.01% of company | added 2.9% | 181K | $100K at $19.79 | Aug 7, 26 |
Pierce Anthony T Director | Acquired (grant/award) | +8K 0.02% of company | n/a | 8K | n/a | Jul 9, 26 |
Lee Howard Director | Sold (automatic/other) | -769 | sold 0.5% | 159K | $14K at $18.45 | Jun 2, 26 |
Deflin Gayle Director | Acquired (grant/award) | +8K 0.02% of company | added 75% | 19K | n/a | Jun 1, 26 |
Gaugh David Russell Director | Acquired (grant/award) | +8K 0.02% of company | added 100% | 14K | n/a | Jun 1, 26 |
Gerst Diane G. Director | Acquired (grant/award) | +8K 0.02% of company | added 34% | 32K | n/a | Jun 1, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
Blend of news sentiment, today’s move, and community votes. Not investment advice.
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
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Here is the latest on AMPH from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for AMPH today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
AMPH last traded at $26.05, down 2.65% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Amphastar Pharmaceuticals, Inc. (AMPH) is next expected to report earnings on Thursday, November 5, 2026, about 23 days away. Earnings reports often cause large overnight gaps, so many traders manage risk around the date. The date can shift until the company officially confirms it.
The AMPH Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged AMPH 50 times in the last 30 days.
AMPH (Amphastar Pharmaceuticals, Inc.) trades on XNAS, with a market cap of about $1.11B in the Pharmaceutical Preparations sector.
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge AMPH for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.
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