Seres Therapeutics

MCRB

Market cap $84.5M

Pharmacologic data highlight durable GI microbiome modulation, with improvement in epithelial barrier integrity, following SER-155 administration

Pharmacologic data highlight durable GI microbiome modulation, with improvement in epithelial barrier integrity, following SER-155 administration

CAMBRIDGE, Mass., April 09, 2026 (GLOBE NEWSWIRE) -- Seres Therapeutics, Inc. (Nasdaq: MCRB), (Seres or the Company), a leading live biotherapeutics company, today announced that it will present at the 2026 CARB-X Investor Day on April 16, 2026, which precedes the European Society of Clinical Microbiology and Infectious Diseases (ESCMID) Global conference in Munich, Germany.

Readout of investigator-sponsored SER-155 study in immune checkpoint–related enterocolitis, a frequent and serious side effect in cancer patients treated with immune checkpoint inhibitors, on track for Q2 2026

Seres Therapeutics, Inc. (MCRB) Discusses Leadership Transition, Strategic Direction and Microbiome Therapeutics Platform Prepared Remarks Transcript

Accomplished pharmaceutical executive brings extensive business development, licensing and finance experience Seres is implementing a focused corporate strategy to advance live biotherapeutic programs in inflammatory and immune diseases and support the readout of investigator-sponsored SER-155 study in immune checkpoint–related enterocolitis, a frequent and serious side effect in cancer patients treated with immune checkpoint inhibitors, expected in Q2 2026 SER-155 is Phase 2 ready for patients undergoing allogeneic hematopoietic stem cell transplant (allo-HSCT) to treat hematologic malignancies (cancers of the blood, bone marrow, and lymph nodes); efforts to secure funding for the program continue Company to host conference call tomorrow, March 3, at 8:30 am ET CAMBRIDGE, Mass., March 02, 2026 (GLOBE NEWSWIRE) -- Seres Therapeutics, Inc. (Nasdaq: MCRB), (Seres or the Company), a leading live biotherapeutics company, today announced the appointment of Richard N.

Seres Therapeutics Inc. (NASDAQ: MCRB) shares are down during Thursday's premarket session following the company's announcement of a strategic shift in its operations.

Seres has finalized the protocol for the Phase 2 study of SER-155 in patients undergoing allogeneic hematopoietic stem cell transplant (allo-HSCT) with the FDA and has advanced key study startup activities and will pause further investment, while efforts to seek funding for the study remain ongoing Company's runway extension actions, including reducing the workforce by approximately 30%, are expected to extend its cash runway through Q3 2026 Seres will focus on advancing development of its early-stage live biotherapeutic programs in Inflammatory and immune diseases and supporting the read-out of clinical results from the fully enrolled Investigator-sponsored SER-155 study in immune checkpoint related enterocolitis (irEC), a frequent and severe adverse events in recipients of ICI therapy, expected in early Q2 2026 CAMBRIDGE, Mass., Feb. 12, 2026 (GLOBE NEWSWIRE) -- Seres Therapeutics, Inc. (Nasdaq: MCRB), a leading live biotherapeutics company, today announced that, following advancement of key startup activities for the SER-155 Phase 2 study in allo-HSCT, including the submission of a final protocol to the FDA, study site evaluation and qualification with its CRO, and manufacturing of Phase 2 study drug substance, Seres is pausing additional investment in that program and will shift its operational focus to high-value earlier-stage pipeline programs while continuing to seek funding for the SER-155 Phase 2 study.

Data demonstrate  clinical translation of VOWST mechanisms of action in both first and multiply recurrent CDI patients

Beaten-down biotech stocks like ALT, IBRX and MCRB are eyeing a 2026 rebound as FDA alignment, pipeline progress and approvals fuel optimism.