Stock listing
NASDAQ:MCRB Seres Therapeutics, Inc. Stock
Home listing (NASDAQ) of Seres Therapeutics, Inc.
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Share price · NASDAQ:MCRB
$1.77 USD -0.18 (-9.2%)
Close on Oct 30, 2026
- Day range
- $1.75 – $1.92 USDOct 30, 2026
- Volume
- 120,108 sharesOct 30, 2026
- Market cap
- $17.78M USDAt the close on Oct 30, 2026 · price × 10.04M shares outstanding
- 52-week range
- $1.68 – $29.98 USDLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
- Traded on an average day
- $254,792 USDMedian day 55,550 shares · last 3 months, Jul 30, 2026 – Oct 30, 2026
Prices by listing
| Listing | Last | Change | Volume | Open | High | Low | Previous close | Price from |
|---|---|---|---|---|---|---|---|---|
| NASDAQ:MCRB · Home | $1.77 USD | -0.18 (-9.2%) | 120,108 | $1.92 | $1.92 | $1.75 | $1.95 | Close on Oct 30, 2026 |
| Frankfurt:1S90 | €1.606 EUR | -0.256 (-13.7%) | — | €1.752 | €1.752 | €1.606 | €1.862 | Close on Oct 27, 2026 |
Daily closes
Last 3 months, Jul 30, 2026 – Oct 30, 2026 · NASDAQ:MCRB · USD, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| $1.77 | -0.18 | -9.2% | $1.92 | $1.92 | $1.75 | 120,108 | |
| $1.95 | +0.16 | +8.9% | $1.90 | $2.029 | $1.81 | 78,449 | |
| $1.79 | -0.01 | -0.6% | $1.70 | $1.93 | $1.675 | 87,484 | |
| $1.80 | -0.18 | -9.1% | $2.00 | $2.00 | $1.70 | 165,278 | |
| $1.98 | -0.11 | -5.3% | $2.11 | $2.185 | $1.98 | 52,938 | |
| $2.09 | -0.04 | -1.9% | $2.13 | $2.17 | $2.00 | 69,700 | |
| $2.13 | -0.17 | -7.4% | $2.29 | $2.30 | $2.02 | 132,200 | |
| $2.30 | -0.01 | -0.4% | $2.30 | $2.40 | $2.261 | 41,800 | |
| $2.31 | -0.11 | -4.5% | $2.41 | $2.55 | $2.31 | 66,800 | |
| $2.42 | -0.04 | -1.6% | $2.46 | $2.58 | $2.415 | 23,400 | |
| $2.46 | -0.07 | -2.8% | $2.56 | $2.56 | $2.422 | 38,600 | |
| $2.53 | +0.11 | +4.5% | $2.40 | $2.61 | $2.40 | 24,600 | |
| $2.42 | -0.11 | -4.3% | $2.65 | $2.66 | $2.385 | 41,900 | |
| $2.53 | -0.15 | -5.6% | $2.66 | $2.66 | $2.51 | 44,100 | |
| $2.68 | -0.03 | -1.1% | $2.75 | $2.78 | $2.66 | 54,300 | |
| $2.71 | +0.08 | +3.0% | $2.65 | $2.75 | $2.58 | 79,400 | |
| $2.63 | -0.09 | -3.3% | $2.68 | $2.724 | $2.42 | 213,400 | |
| $2.72 | -0.18 | -6.2% | $2.86 | $3.00 | $2.70 | 60,400 | |
| $2.90 | +0.05 | +1.8% | $2.875 | $3.02 | $2.80 | 76,400 | |
| $2.85 | -0.09 | -3.1% | $2.91 | $2.91 | $2.81 | 63,300 | |
| $2.94 | +0.01 | +0.3% | $2.98 | $3.20 | $2.91 | 100,700 | |
| $2.93 | -0.42 | -12.5% | $3.10 | $3.41 | $2.83 | 247,300 | |
| $3.35 | -0.13 | -3.7% | $3.473 | $3.486 | $3.26 | 54,600 | |
| $3.48 | -0.04 | -1.1% | $3.54 | $3.585 | $3.35 | 71,200 | |
| $3.52 | 0.00 | 0.0% | $3.49 | $3.55 | $3.405 | 55,500 | |
| $3.52 | -0.10 | -2.8% | $3.66 | $3.695 | $3.50 | 55,600 | |
| $3.62 | -0.17 | -4.5% | $3.71 | $3.85 | $3.52 | 89,600 | |
| $3.79 | -0.23 | -5.7% | $4.06 | $4.221 | $3.73 | 51,600 | |
| $4.02 | -0.05 | -1.2% | $4.13 | $4.15 | $3.93 | 35,700 | |
| $4.07 | +0.07 | +1.8% | $4.23 | $4.33 | $3.90 | 38,800 | |
| $4.00 | -0.10 | -2.4% | $4.11 | $4.265 | $4.00 | 95,100 | |
| $4.10 | -0.11 | -2.6% | $4.28 | $4.311 | $4.01 | 44,400 | |
| $4.21 | -0.39 | -8.5% | $4.55 | $4.835 | $4.18 | 83,800 | |
| $4.60 | -0.13 | -2.7% | $4.73 | $4.87 | $4.53 | 44,700 | |
| $4.73 | -0.28 | -5.6% | $5.00 | $5.145 | $4.71 | 54,000 | |
| $5.01 | -0.09 | -1.8% | $5.17 | $5.24 | $5.00 | 39,600 | |
| $5.10 | -0.18 | -3.4% | $5.24 | $5.27 | $5.05 | 32,100 | |
| $5.28 | -0.28 | -5.0% | $5.52 | $5.67 | $5.28 | 38,500 | |
| $5.56 | -0.16 | -2.8% | $5.68 | $5.75 | $5.40 | 36,600 | |
| $5.72 | +0.08 | +1.4% | $5.64 | $5.89 | $5.58 | 36,400 | |
| $5.64 | +0.10 | +1.8% | $5.51 | $5.95 | $5.39 | 136,000 | |
| $5.54 | +0.36 | +6.9% | $5.23 | $5.60 | $5.14 | 63,700 | |
| $5.18 | +0.27 | +5.5% | $5.00 | $5.18 | $4.96 | 49,200 | |
| $4.91 | -0.20 | -3.9% | $5.10 | $5.10 | $4.91 | 44,200 | |
| $5.11 | +0.16 | +3.2% | $4.92 | $5.14 | $4.80 | 32,500 | |
| $4.95 | +0.19 | +4.0% | $4.77 | $5.00 | $4.77 | 22,900 | |
| $4.76 | -0.24 | -4.8% | $4.93 | $5.00 | $4.71 | 58,200 | |
| $5.00 | +0.34 | +7.3% | $4.67 | $5.15 | $4.67 | 102,958 | |
| $4.66 | +0.10 | +2.2% | $4.51 | $4.85 | $4.436 | 74,812 | |
| $4.56 | -0.01 | -0.2% | $4.53 | $4.635 | $4.50 | 45,300 | |
| $4.57 | -0.11 | -2.4% | $4.64 | $4.69 | $4.39 | 74,500 | |
| $4.68 | +0.34 | +7.8% | $4.44 | $4.74 | $4.375 | 87,200 | |
| $4.34 | -0.17 | -3.8% | $4.44 | $4.53 | $4.315 | 71,400 | |
| $4.51 | -0.03 | -0.7% | $4.55 | $4.62 | $4.43 | 42,200 | |
| $4.54 | +0.06 | +1.3% | $4.51 | $4.67 | $4.44 | 37,300 | |
| $4.48 | -0.24 | -5.1% | $4.75 | $4.75 | $4.46 | 81,900 | |
| $4.72 | +0.08 | +1.7% | $4.63 | $4.767 | $4.585 | 45,400 | |
| $4.64 | -0.36 | -7.2% | $4.94 | $4.94 | $4.615 | 84,600 | |
| $5.00 | +0.13 | +2.7% | $5.05 | $5.05 | $4.76 | 84,500 | |
| $4.87 | +0.05 | +1.0% | $5.07 | $5.189 | $4.82 | 62,300 | |
| $4.82 | -0.185 | -3.7% | $5.01 | $5.15 | $4.70 | 80,200 | |
| $5.005 | -0.245 | -4.7% | $5.63 | $5.65 | $4.82 | 141,600 | |
| $5.25 | +0.22 | +4.4% | $5.07 | $5.40 | $4.81 | 40,500 | |
| $5.03 | +0.20 | +4.1% | $4.90 | $5.13 | $4.90 | 29,800 | |
| $4.83 | +0.05 | +1.0% | $4.86 | $4.99 | $4.645 | 51,200 | |
| $4.78 | +0.13 | +2.8% | $4.77 | $4.90 | $4.60 | 50,400 |
- Ticker
- NASDAQ:MCRB
- Asset type
- Stock
- Sector
- Health care
- Industry
- Biotechnology
- Exchange
- NASDAQ
- Currency
- USD
What changed lately
Latest news release · Oct 15, 2026
Seres Therapeutics to Present Preclinical Data for SER-428, an Investigational Live Biotherapeutic Designed to Reduce Risk of Bloodstream Infections in Critically Ill Patients, at IDWeek 2026
Latest earnings call · Nov 5, 2025
Seres Therapeutics (NASDAQ:MCRB) Q3 2025 Earnings Call
Replay and transcript
Latest deck · Jul 8, 2026
Technical Presentation (July 2026)
Technical · 19 slides
Calls
Replays
Seres Therapeutics (NASDAQ:MCRB) Q3 2025 Earnings Call
Wed, Nov 05, 2025 · 8:30 AM ET
Watch TranscriptSeres Therapeutics (NASDAQ:MCRB) Q2 2025 Earnings Call
Wed, Aug 06, 2025 · 8:30 AM ET
Watch TranscriptSeres Therapeutics (NASDAQ:MCRB) Q1 2025 Earnings Call
Wed, May 07, 2025 · 8:30 AM ET
Watch Transcript
Latest news
Seres Therapeutics to Present Preclinical Data for SER-428, an Investigational Live Biotherapeutic Designed to Reduce Risk of Bloodstream Infections in Critically Ill Patients, at IDWeek 2026
Oct 15, 2026
Closed $2.53 (+4.5%) on Oct 15, 2026
Seres Therapeutics to Participate in H.C. Wainwright 28th Annual Global Investment Conference
Sep 1, 2026
Closed $5.18 (+5.5%) on Sep 1, 2026
Seres Therapeutics Reports Second Quarter 2026 Financial Results and Provides Business Updates, Including Further Action to Reduce Ongoing Facilities Costs
Aug 5, 2026
Closed $5.01 (-4.7%) on Aug 5, 2026
Seres Therapeutics Announces Early Clinical Data Showing Potential for SER-155 in Immune Checkpoint Inhibitor-Related Enterocolitis (irEC), a Frequent Adverse Reaction That Forces Many Patients to Halt Cancer Treatment
Jul 8, 2026
Closed $7.14 (-12.3%) on Jul 8, 2026
Seres Therapeutics Announces Two Transactions to Strengthen Balance Sheet, Reduce On-Going Lease Costs and Extend Projected Operating Cash Runway Well Into the First Quarter of 2027
Jun 5, 2026
Closed $6.63 (-3.2%) on Jun 5, 2026
Seres Therapeutics to Participate in H.C. Wainwright 4th Annual BioConnect Investor Conference
May 12, 2026
Closed $7.96 (+1.5%) on May 12, 2026
Seres Therapeutics Reports First Quarter 2026 Financial Results and Provides Business Updates
May 5, 2026
Closed $7.50 (-2.5%) on May 5, 2026
Seres Therapeutics Presents Preclinical Data at Digestive Disease Week (DDW) 2026 Supporting SER-603, a Next-Generation Cultivated Live Biotherapeutic Candidate, for Inflammatory Bowel Disease
May 4, 2026
Closed $7.69 (+1.1%) on May 4, 2026
Seres Therapeutics Showcases SER-155 Data and Live Biotherapeutic Insights at ESCMID Global 2026
Apr 20, 2026
Closed $8.94 (+0.6%) on Apr 20, 2026
Seres Therapeutics to Present at CARB-X Investor Day
Apr 9, 2026
Closed $8.71 (-0.6%) on Apr 9, 2026
Decks
Technical Presentation (July 2026)
Technical · 19 slides · Jul 8, 2026
Investor Presentation (July 2026)
Investor deck · 53 slides · July 2026
Investor Presentation (March 2026)
Investor deck · 40 slides · Mar 12, 2026
Investor Presentation (November 2025)
Investor deck · 37 slides · Nov 5, 2025
Seres Therapeutics, Inc. on 6ix
- Sector
- Health care
- Industry
- Biotechnology
- News releases
- 17 in the last 12 months · 108 in all · newest Oct 15, 2026 · oldest 2019
- Calls
- 20 calls with a replay · 20 with a transcript · latest Nov 5, 2025
- Decks
- 53 decks · latest Jul 8, 2026
Where Seres Therapeutics, Inc. is listed
| Listing | Exchange | Country | Currency |
|---|---|---|---|
| NASDAQ:MCRB · Home listing · This page | NASDAQ | United States | USD |
| gettex:1S90 | gettex | Germany | EUR |
| LS Exchange:A413XF | LS Exchange | Germany | EUR |
| Lang & Schwarz:A413XF | Lang & Schwarz | Germany | EUR |
| BOATS:MCRB | BOATS | United States | USD |
| BX Swiss:MCRB | BX Swiss | Switzerland | CHF |
| Frankfurt:1S90 | Frankfurt | Germany | EUR |
| Stuttgart:1S90 | Stuttgart | Germany | EUR |
| Tradegate:1S90 | Tradegate | Germany | EUR |
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