$MCRB
Seres Therapeutics, Inc.
XNAS•Health Care•Pharmaceutical Preparations
Why is MCRB down today? It is at $4.56 (-0.22%), and our scanner flagged it 3 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment MCRB spikes, and full due diligence on MCRB — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $4.56
- Change today
- -0.22%
- Previous close
- $4.57
- 52-week range
- $4.32 – $29.98
- Market cap
- $46M
- Total held
- 1.1%
- Tradeable float
- 9.9M 99% of shares · after 1% insiders + institutional n/a
- Short interest
- 315K ▲ +4% vs prior · as of 2026-07-31
- Short % of float
- 3.2%
- Days to cover
- 5.9d
- Avg daily volume
- 112K
- Sector
- Health Care
- Industry
- Pharmaceutical Preparations
- Exchange
- XNAS
- 5m
- 1.8x
- 15m
- 1.8x
- 1hthin
- 1.0x
- 1D
- --
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Why is $MCRB moving today?
Here is the latest on MCRB from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for MCRB today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
Likely catalystSeres Therapeutics, Inc.: Q2 FY2026 results, three months to Jun 30, 2026, from an SEC filing. Read it →Latest filing4Insider trade (Form 4)Aug 18, 2026 · 4 days agoInsiders
Insiders selling0 buys, 4 sells last 3 months (0/16 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Desrosier Thomas Officer | Sold (automatic/other) | -82 | sold 1.0% | 8K | $373 at $4.55 | Aug 17, 26 |
Henn Matthew R Officer | Sold (automatic/other) | -81 | sold 1.0% | 8K | $369 at $4.55 | Aug 17, 26 |
Shaff Eric D. Director | Sold (automatic/other) | -263 | sold 2.1% | 12K | $1K at $4.55 | Aug 17, 26 |
Brady Kelly Officer | Sold (automatic/other) | -64 | sold 0.7% | 9K | $291 at $4.55 | Aug 17, 26 |
Desrosier Thomas Officer | Other | 245 | added 3.1% | 8K | n/a | Aug 15, 26 |
Henn Matthew R Officer | Other | 238 | added 3.0% | 8K | n/a | Aug 15, 26 |
Shaff Eric D. Director | Other | 722 | added 6.0% | 13K | n/a | Aug 15, 26 |
Brady Kelly Officer | Other | 181 | added 2.1% | 9K | n/a | Aug 15, 26 |
Desrosier Thomas Officer | Sold (automatic/other) | -79 | sold 1.0% | 8K | $595 at $7.53 | May 18, 26 |
Brady Kelly Officer | Sold (automatic/other) | -59 | sold 0.7% | 9K | $444 at $7.53 | May 18, 26 |
Shaff Eric D. Director | Sold (automatic/other) | -259 | sold 2.1% | 12K | $2K at $7.53 | May 18, 26 |
Henn Matthew R Officer | Sold (automatic/other) | -77 | sold 1.0% | 8K | $580 at $7.53 | May 18, 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
Active shelfRecent share offering + active shelf on file — the company raised capital and can raise more. If $MCRB runs, these filings show who may be positioned to sell new or newly-registered shares into the move.
- About $300.0M in size
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.
$MCRB Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$MCRB Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
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MCRB stock FAQ
Why is $MCRB moving today?
Here is the latest on MCRB from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for MCRB 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 MCRB stock price today?
MCRB last traded at $4.56, down 0.22% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live MCRB alerts?
The MCRB 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 MCRB 3 times in the last 30 days.
What exchange is MCRB on?
MCRB (Seres Therapeutics, Inc.) trades on XNAS, with a market cap of about $46M in the PHARMACEUTICAL PREPARATIONS sector.
Is MCRB 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 MCRB for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.