$MBX
MBX Biosciences, Inc. Common Stock
XNAS•Health Care•Pharmaceutical Preparations
Why is MBX down today? It is at $66.35 (-3.00%), and our scanner flagged it 44 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment MBX spikes, and full due diligence on MBX — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $66.35
- Change today
- -3.00%
- Previous close
- $68.40
- 52-week range
- $9.63 – $72.64
- Market cap
- $3.20B
- Institutional own.
- 99.9%
- Total held
- 100.0%
- Short interest
- 5.2M ▼ -10% vs prior · as of 2026-07-31
- Days to cover
- 8.5d
- Avg daily volume
- 861K
- Sector
- Health Care
- Industry
- Pharmaceutical Preparations
- Exchange
- XNAS
- 5m
- 0.2x
- 15m
- 0.2x
- 1h
- 0.3x
- 1D
- 0.2x
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Why is $MBX down today?
Here is the latest on MBX from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for MBX today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
Insiders
Insiders buying1 open-market buy2 buys, 1 sells last 3 months (10/4 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Azoulay Salomon Officer | Sold (automatic/other) | -370 | sold 2.5% | 14K | $24K at $65.77 | Aug 4, 26 |
Hoerter Steven L. Officer | Acquired (grant/award) | +71K 0.1% of company | added 100% | 83K | n/a | Aug 3, 26 |
Smither John W Officer | Acquired (grant/award) | +28K 0.06% of company | n/a | 28K | n/a | Aug 3, 26 |
Azoulay Salomon Officer | Sold (automatic/other) | -70K 0.1% of company | sold 83% | 15K | $2.7M at $38.30 | May 8, 26 |
Azoulay Salomon Officer | Other | 70K 0.1% of company | n/a | 70K | $732K at $10.46 | May 8, 26 |
Hawryluk P. Kent Officer | Sold (automatic/other) | -607 | sold <0.1% | 728K | $18K at $29.54 | May 6, 26 |
Azoulay Salomon Officer | Sold (automatic/other) | -231 | sold 1.5% | 15K | $7K at $29.54 | May 6, 26 |
Hoerter Steven L. Director | Acquired (grant/award) | +12K 0.02% of company | n/a | 12K | n/a | May 1, 26 |
Hawryluk P. Kent Officer | Bought (open market) | +19K 0.04% of company | added 4.0% | 487K | $526K at $28.41 | Mar 13, 26 |
Hawryluk P. Kent Officer | Other | 29K 0.06% of company | added 4.1% | 728K | $460K at $16.00 | Feb 26, 26 |
Hawryluk P. Kent Officer | Acquired (grant/award) | +35K 0.07% of company | added 5.3% | 700K | n/a | Feb 2, 26 |
Bartram Richard Officer | Acquired (grant/award) | +15K 0.03% of company | n/a | 15K | n/a | Feb 2, 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
UnavailableWe could not reach SEC EDGAR, so the dilution check did not run for $MBX. This is not a clean result: there may be an offering, a registration or a shelf on file that we were unable to read. Check it yourself on SEC EDGAR before trading it.
$MBX Sentiment
BearishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$MBX Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
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MBX stock FAQ
Why is $MBX down today?
Here is the latest on MBX from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for MBX today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
What is the MBX stock price today?
MBX last traded at $66.35, down 3.00% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live MBX alerts?
The MBX 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 MBX 44 times in the last 30 days.
What exchange is MBX on?
MBX (MBX Biosciences, Inc. Common Stock) trades on XNAS, with a market cap of about $3.20B in the PHARMACEUTICAL PREPARATIONS sector.
Is MBX 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 MBX for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.