$ZBIO
Zenas BioPharma, Inc. Common Stock
XNAS•Health Care•Pharmaceutical Preparations
Why is ZBIO down today? It is at $31.86 (-1.33%), and our scanner flagged it 60 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment ZBIO spikes, and full due diligence on ZBIO — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $31.86
- Change today
- -1.33%
- Previous close
- $32.29
- 52-week range
- $13.50 – $44.60
- Market cap
- $2.06B
- Dividend yield
- 0.02% ($0.01)
- Institutional own.
- 93.64%
- Total held
- 100.0%
- Avg daily volume
- 682K
- Sector
- Health Care
- Industry
- Pharmaceutical Preparations
- Exchange
- XNAS
- 5mthin
- 464x
- 15mthin
- 464x
- 1hthin
- 0.1x
- 1D
- 0.2x
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Why is $ZBIO down today?
Here is the latest on ZBIO from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for ZBIO today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
Likely catalystZenas BioPharma, Inc.: Q2 FY2026 results, three months to Jun 30, 2026, from an SEC filing. Read it →Latest filingSC 13D/AActivist 5%+ stake updatedAug 19, 2026 · 5 days agoAnalyst data via Nasdaq. Not investment advice.
Insiders
11 open-market buys0 buys, 0 sells last 3 months (24/0 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Moulder Leon O Jr Officer | Bought (open market) | +60K 0.09% of company | added 3.3% | 1.88M | $1.0M at $16.88 | May 18, 26 |
Moulder Leon O Jr Officer | Bought (open market) | +35K 0.05% of company | added 2.0% | 1.82M | $617K at $17.62 | Apr 29, 26 |
Moulder Leon O Jr Officer | Bought (open market) | +25K 0.04% of company | added 1.4% | 1.75M | $451K at $18.02 | Apr 28, 26 |
Lu Hongbo Director | Bought (open market) | +75K 0.1% of company | added 22% | 423K | $1.5M at $20.00 | Mar 31, 26 |
Moulder Leon O Jr Officer | Bought (open market) | +34K 0.05% of company | added 2.0% | 1.76M | $657K at $19.31 | Mar 31, 26 |
Fairmount Funds Management Llc Director | Bought (open market) | +150K 0.2% of company | added 6.8% | 2.36M | $3.0M at $20.00 | Mar 31, 26 |
Lu Hongbo Director | Bought (open market) | +4K | added 0.9% | 427K | $70K at $18.63 | Mar 31, 26 |
Moulder Leon O Jr Officer | Bought (open market) | +20K 0.03% of company | added 1.2% | 1.69M | $365K at $18.23 | Mar 30, 26 |
Allen Patricia L Director | Bought (open market) | +4K | added 26% | 20K | $110K at $26.36 | Feb 13, 26 |
Allen Patricia L Director | Bought (open market) | +16K 0.02% of company | n/a | 16K | $373K at $23.77 | Feb 12, 26 |
Lu Hongbo Director | Bought (open market) | +26K 0.04% of company | added 8.1% | 348K | $585K at $22.50 | Feb 11, 26 |
Fox Jennifer A. Officer | Acquired (grant/award) | +2K | n/a | 2K | $21K at $13.35 | Feb 5, 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 $ZBIO 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.
$ZBIO Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$ZBIO Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
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ZBIO stock FAQ
Why is $ZBIO down today?
Here is the latest on ZBIO from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for ZBIO 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 ZBIO stock price today?
ZBIO last traded at $31.86, down 1.33% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Does ZBIO pay a dividend?
Yes. ZBIO currently has a dividend yield of about 0.02% ($0.01 per share per year). Dividend figures can change; this is not investment advice.
Where can I see live ZBIO alerts?
The ZBIO 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 ZBIO 60 times in the last 30 days.
What exchange is ZBIO on?
ZBIO (Zenas BioPharma, Inc. Common Stock) trades on XNAS, with a market cap of about $2.06B in the PHARMACEUTICAL PREPARATIONS sector.
Is ZBIO 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 ZBIO for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.