$AMBQ
Ambiq Micro, Inc.
XNYS
Why is AMBQ down today? It is at $57.82 (-2.31%), and our scanner flagged it 57 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment AMBQ spikes, and full due diligence on AMBQ — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $57.82
- Change today
- -2.31%
- Previous close
- $59.19
- 52-week range
- $22.12 – $91.61
- Market cap
- $1.52B
- Institutional own.
- 99.9%
- Total held
- 100.0%
- Short interest
- 1.8M ▼ -0% vs prior · as of 2026-07-31
- Days to cover
- 3.1d
- Avg daily volume
- 376K
- Exchange
- XNYS
- 5m
- 0.6x
- 15m
- 1.1x
- 1h
- 0.6x
- 1D
- 0.2x
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Why is $AMBQ down today?
AMBQ is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 1 unusual-volume and momentum alert on AMBQ today.
Latest filing4Insider trade (Form 4)Aug 18, 2026 · 2 days agoAnalyst data via Nasdaq. Not investment advice.
Insiders
Insiders buying5 buys, 3 sells last 3 months (15/10 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Esaka Fumihide Officer | Sold (automatic/other) | -14K 0.06% of company | sold 2.9% | 451K | $854K at $63.29 | Aug 14, 26 |
Esaka Fumihide Officer | Other | 14K 0.06% of company | added 3.0% | 465K | $110K at $8.12 | Aug 14, 26 |
Hanson Scott Mclean Officer | Sold (automatic/other) | -7K 0.03% of company | sold 3.2% | 211K | $443K at $63.26 | Aug 14, 26 |
Hanson Scott Mclean Officer | Other | 7K 0.03% of company | added 3.3% | 218K | $57K at $8.12 | Aug 14, 26 |
Zhang Ker Director | Acquired (grant/award) | +5K 0.02% of company | added 21% | 29K | n/a | Jun 8, 26 |
Tautges Joseph A Director | Acquired (grant/award) | +5K 0.02% of company | added 10% | 54K | n/a | Jun 8, 26 |
Banks Bernard Bennett Director | Acquired (grant/award) | +5K 0.02% of company | n/a | 5K | n/a | Jun 8, 26 |
Chen Timothy Director | Acquired (grant/award) | +5K 0.02% of company | added 10% | 53K | n/a | Jun 8, 26 |
Hsieh Wen Hsuan Director | Acquired (grant/award) | +5K 0.02% of company | n/a | 5K | n/a | Jun 8, 26 |
Winzeler Jeffrey G Officer | Other | 6K 0.02% of company | added 5.9% | 106K | $100K at $16.80 | Jun 2, 26 |
Chen Timothy Director | Sold (automatic/other) | -71K 0.3% of company | n/a | n/a | $5.6M at $78.85 | May 27, 26 |
Esaka Fumihide Officer | Other | 60K 0.2% of company | added 15% | 451K | $487K at $8.12 | May 15, 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.
Dilution watch
Recent offeringRecent priced share offering — a one-time sale that has already completed (not ongoing). If $AMBQ runs, these filings show who may be positioned to sell new or newly-registered shares into the move.
Sourced from SEC EDGAR filings (last 9 months); terms read straight from the filing text where available. Ongoing = an at-the-market (ATM) program still selling over time or a live shelf, so it can keep diluting; Completed = a one-time priced sale that already finished. A shelf (S-3) stays effective ~3 years. Form type signals dilution capacity, not an exact share count, and we can't confirm how much of a shelf or ATM remains unused. Not investment advice.
$AMBQ Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$AMBQ Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
AMBQ stock FAQ
Why is $AMBQ down today?
AMBQ is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 1 unusual-volume and momentum alert on AMBQ today.
What is the AMBQ stock price today?
AMBQ last traded at $57.82, down 2.31% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live AMBQ alerts?
The AMBQ 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 AMBQ 57 times in the last 30 days.
What exchange is AMBQ on?
AMBQ (Ambiq Micro, Inc.) trades on XNYS, with a market cap of about $1.52B.
Is AMBQ good for day trading?
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 AMBQ for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.