MCRB Seres Therapeutics, Inc.

NEUTRAL Impact: 3/10 PRESS-RELEASE
Horizon months Filed May 4, 2026 Processed 1mo ago Wire GlobeNewswire
Press release: fda
Latest settled — T+20d ⚠ clustered
MCRB ▼ -0.65% at T+20d
NEUTRAL call ✗ call lost -0.65% · α vs SPY -6.30% · entry $7.69 → $7.64
Next anchor: T+60d in 7w
Last close $6.28 (close Jun 8) · -18.34% from $7.69 entry
Entry anchored
May 4, 2026
via day open
T+1d
-2.47%
call -2.47% · α -3.27%
$7.50
settled 5w ago
T+5d
+1.95%
call +1.95% · α -0.99%
$7.84
settled 4w ago
T+20d
-0.65%
call -0.65% · α -6.30%
$7.64
settled 8d ago
T+60d
call — · α —
in 7w

Price Chart

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Executive Summary

Seres Therapeutics presented preclinical data for SER-603, a next-generation live biotherapeutic for IBD, at DDW 2026. The data is early-stage (in vitro) and does not provide financial or regulatory catalysts, limiting near-term stock impact.

Actionable Insight

Monitor for IND filing or partnership announcements. Given early-stage data, low probability of near-term stock movement; any upside would require positive clinical data or a collaboration deal.

Key Facts

  • SER-603 is a preclinical cultivated live biotherapeutic candidate for inflammatory bowel disease (IBD).
  • Data presented at DDW 2026 was selected for 'Poster of Distinction' recognition.
  • SER-603 is designed to modulate the GI microbiome, induce mucosal healing, and reduce inflammatory stimuli without immunosuppression.
  • The company is advancing SER-603 through IND-enabling activities and seeking development partners.

Financial Impact

No financial data disclosed. No revenue or earnings impact at this preclinical stage.

Risk Factors

  • Preclinical results may not translate to clinical efficacy.
  • Company faces going concern risk and needs additional funding.
  • SER-603 is early stage; clinical development timeline is years away.

Market Snapshot

Exchange
Nasdaq
Sector
Pharmaceutical Preparations
Analyst Consensus
86% bullish (7 analysts)

Documents Analyzed

This report is based on 1 press release from GlobeNewswire.

DocumentAccession Number
PRESS-RELEASE Data (Synthetic)press-3286554
8 reports for MCRB
Performance horizon

Track record builds as more directional reports settle.

Filters
Rows
Reports for MCRB — sortable, filterable
Type Now
Jun 5, 2026
4d ago
8-K
MIXED ★ 6/10
$7.80 awaiting T+5awaiting T+5$6.28 (−19.49%)
Jun 5, 2026
4d ago
Press Release
NEUTRAL ★ 5/10
$6.99 awaiting T+5awaiting T+5$6.28 (−10.16%)
May 19, 2026
21d ago
Insider Cluster
NEUTRAL ★ 2/10
$7.66 $7.63▼ −0.39%▼ −1.63%$6.28 (−18.02%)
May 5, 2026
5w ago
8-K
BEARISH ★ 7/10
$7.50 $7.96▼ −6.13%▼ −4.15%$6.28 (+16.27%)
May 5, 2026
5w ago
Press Release
BEARISH ★ 7/10
$7.50 $7.84▼ −4.53%▼ −2.55%$6.28 (+16.27%)
May 4, 2026
5w ago
Press Release
NEUTRAL ★ 3/10
$7.69 $7.84▲ +1.95%▼ −0.99%$6.28 (−18.34%)
Mar 12, 2026
12w ago
8-K
NEUTRAL ★ 4/10
$9.05 $9.08▲ +0.33%▲ +1.31%$6.28 (−30.61%)
Mar 12, 2026
12w ago
Press Release
MIXED ★ 6/10
$9.05 $9.08▲ +0.33%▲ +1.31%$6.28 (−30.61%)
Showing 8 of 8

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