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Seres Therapeutics Inc Stock Price, News & Analysis

MCRB Nasdaq

Welcome to our dedicated page for Seres Therapeutics news (Ticker: MCRB), a resource for investors and traders seeking the latest updates and insights on Seres Therapeutics stock.

Seres Therapeutics, Inc. (Nasdaq: MCRB) is a clinical-stage live biotherapeutics company that regularly issues news about its microbiome-based drug programs, regulatory interactions, and corporate developments. The company focuses on oral live biotherapeutics for medically vulnerable patient populations, particularly adults undergoing allogeneic hematopoietic stem cell transplant (allo-HSCT) and other high-risk groups.

News about Seres often centers on its lead investigational candidate SER-155, including Phase 1b clinical data showing a significant reduction in bacterial bloodstream infections, systemic antibiotic exposure, and febrile neutropenia in allo-HSCT patients compared with placebo. Updates also cover regulatory designations for SER-155, such as Breakthrough Therapy and Fast Track status, and detailed feedback from the U.S. Food and Drug Administration on the design of a planned Phase 2 study.

Investors and followers of MCRB can expect announcements on clinical trial progress, investigator-sponsored studies in areas like immune checkpoint inhibitor–related enterocolitis, and research presentations at major medical meetings. Seres also issues press releases on mechanistic publications for its live biotherapeutics, including VOWST™, and on data generated from its MbTx® platform that support its broader live biotherapeutic strategy.

In addition to R&D updates, Seres publishes news on cost-reduction actions, cash runway expectations, leadership changes, and efforts to secure capital or partnerships to advance its pipeline. For those tracking MCRB, this news feed provides a centralized view of program milestones, scientific data, regulatory interactions, and corporate actions that shape the company’s live biotherapeutics portfolio.

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Seres Therapeutics, Inc. (NASDAQ: MCRB) announced a conference call on May 4, 2022, at 8:30 a.m. ET to discuss its first quarter results and provide a business update. The call can be accessed by dialing 877-270-2148 (domestic) or 412-902-6510 (international). The company is known for its innovative microbiome therapeutics, particularly the SER-109 program, which has received Breakthrough Therapy and Orphan Drug designations from the FDA. SER-109 aims to reduce C. difficile infection recurrence, marking a significant milestone in microbiome-based treatments.

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Seres Therapeutics (Nasdaq: MCRB) presents promising preclinical data on SER-155 at the European Bone Marrow Transplantation Annual Meeting. The findings indicate that SER-155 can potentially reduce infections and Graft-versus-Host Disease (GvHD) in patients undergoing hematopoietic stem cell transplantation. The ongoing Phase 1b clinical trial aims to evaluate SER-155's safety and efficacy after vancomycin treatment. Preliminary results show SER-155 enhances gut immunity and may restore a healthy microbiome, addressing a critical need in transplant recovery.

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Seres Therapeutics (Nasdaq: MCRB) will present at the 32nd Annual Oppenheimer Healthcare Conference on March 17, 2022, at 8:00 a.m. ET, by CEO Eric Shaff. An audio webcast will be accessible via the Investors section of their website, with a replay available one hour post-event for 21 days. Seres is recognized for its SER-109 program, targeting recurrent C. difficile infections, which received Breakthrough Therapy and Orphan Drug designations from the FDA. The firm is also advancing SER-301 and SER-155 in clinical trials for ulcerative colitis and gastrointestinal infections respectively.

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Seres Therapeutics (NASDAQ: MCRB) announced that CEO Eric Shaff will participate in a panel at the Cowen 42nd Annual Health Care Conference on March 9, 2022, at 10:30 a.m. ET. An audio webcast of the discussion will be available on their website, with a replay accessible for 21 days post-event.

Seres is recognized for its pioneering work in microbiome therapeutics, highlighted by its SER-109 program, which has achieved positive clinical results for treating C. difficile infections. Additionally, SER-301 and SER-155 are in Phase 1b studies targeting ulcerative colitis and infection prevention in medically compromised patients.

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Seres Therapeutics (MCRB) announced its fourth quarter and full year 2021 financial results, reporting a net loss of $65.6 million for the year, improving from a loss of $89.1 million in 2020. Significant progress was noted in the Phase 3 ECOSPOR III study of SER-109 for recurrent C. difficile infection (rCDI), achieving its primary endpoint. A Biologics License Application (BLA) filing is anticipated in mid-2022, potentially making SER-109 the first microbiome therapeutic approved. The company also launched SER-155 for Infection Protection and reported cash reserves of approximately $291.2 million.

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Seres Therapeutics, Inc. (Nasdaq: MCRB) will host a conference call on March 1, 2022, at 8:30 a.m. ET to discuss its Q4 2021 and full-year results, along with a general business update. Investors can join by calling 844-277-9450 for domestic or 336-525-7139 for international access, referencing conference ID 6277858. The event will also be available for live streaming on their website. Seres' SER-109 program achieved positive clinical results and has received FDA Breakthrough Therapy and Orphan Drug designations, targeting recurrent C. difficile infection.

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Seres Therapeutics (Nasdaq: MCRB) announced that CEO Eric Shaff will present at the Chardan Metagenomics and Microbiome Medicines Summit on March 1, 2022, at 2:00 p.m. ET. An audio webcast of the presentation will be available on the company's website, with a replay accessible one hour post-event for 21 days. Seres is a pioneer in microbiome therapeutics, with its SER-109 program showing promising results for treating C. difficile infections. The company is also conducting Phase 1b studies for SER-301 and SER-155 targeting ulcerative colitis and infection prevention, respectively.

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Seres Therapeutics, Inc. (Nasdaq: MCRB) announced the appointment of Paula Cloghessy as Executive Vice President and Chief People Officer effective February 7, 2022. Her extensive 20+ years in HR within biotechnology and pharmaceuticals aims to enhance the company’s culture and support its growth, particularly in advancing SER-109 towards FDA approval. Cloghessy emphasizes talent development and employee engagement, ensuring a positive work environment. This strategic hiring comes as Seres continues its pioneering efforts in microbiome therapeutics.

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Seres Therapeutics, Inc. (Nasdaq: MCRB) will host a webcast investor event on January 31, 2022, from 8:30 a.m. to 10:00 a.m. ET, focusing on microbiome therapeutics for infection protection. Clinical data from the Phase 3 ECOSPOR III trial showed that SER-109 significantly reduced CDI recurrence, with 88% of patients achieving a sustained clinical response. Additionally, SER-155 is being evaluated in patients at risk of serious infections. The event will feature discussions on new infection prevention strategies and the role of microbiome therapeutics.

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Seres Therapeutics (MCRB) announced significant results from its Phase 3 ECOSPOR III study on SER-109, an oral microbiome therapeutic for recurrent C. difficile infection. The study demonstrated an 88% sustained clinical response in patients taking SER-109, compared to 60% with placebo. Furthermore, SER-109 was well tolerated, mirroring placebo safety profiles. The company plans to finalize its Biologics License Application (BLA) filing by mid-2022, aiming for FDA approval. These findings published in the New England Journal of Medicine highlight SER-109's potential to transform treatment standards for rCDI.

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FAQ

What is the current stock price of Seres Therapeutics (MCRB)?

The current stock price of Seres Therapeutics (MCRB) is $8.32 as of April 10, 2026.

What is the market cap of Seres Therapeutics (MCRB)?

The market cap of Seres Therapeutics (MCRB) is approximately 83.5M.