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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) will host a conference call and audio webcast on November 2, 2022, at 8:30 a.m. ET, to discuss its third quarter 2022 results and a business update. The company is known for its innovative microbiome therapeutics, notably the SER-109 program, which has received Breakthrough Therapy and Orphan Drug designations from the FDA. SER-109 aims to prevent recurrent C. difficile infections. Seres is also advancing SER-155 in a Phase 1b study for patients with allogeneic transplants and exploring other microbiome therapeutics.

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Seres Therapeutics announced that the FDA has accepted their Biologics License Application (BLA) for SER-109, an oral microbiome therapeutic aimed at preventing recurrent C. difficile infections. The application has received Priority Review designation with a PDUFA action date of April 26, 2023. SER-109 demonstrated promising clinical results, with 88% of treated patients free from recurrence at eight weeks post-treatment. Furthermore, Seres has an agreement with Nestlé Health Science for commercialization, including a potential total of $525 million in milestone payments.

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Seres Therapeutics (Nasdaq: MCRB) announced positive findings for its investigational therapy SER-109 in preventing recurrent C. difficile infection.Clinical data from the Phase 3 ECOSPOR IV study showed substantial reduction in recurrent infections without serious adverse events, indicating good tolerability among patients with coexisting health issues.FDA has granted SER-109 Breakthrough and Orphan Drug designations, with potential approval expected in the first half of 2023, positioning it as the first oral microbiome therapeutic.

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Seres Therapeutics (MCRB) announced positive Phase 3 clinical results for SER-109, an oral microbiome therapeutic, published in JAMA. The study indicates that SER-109 significantly reduces the risk of recurrent C. difficile infection (rCDI) within 24 weeks post-treatment. With approximately 170,000 annual rCDI cases in the U.S., SER-109 aims to enhance the standard of care. The FDA has granted Breakthrough Therapy and Orphan Drug designations for SER-109, and a Biologics License Application has been submitted, with expectations for approval in early 2023.

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Seres Therapeutics (Nasdaq: MCRB) announced the presentation of Phase III ECOSPOR IV trial data for its oral microbiome therapeutic SER-109, aimed at preventing recurrent C. difficile infection. This significant data will be showcased at IDWeek 2022 and the ACG 2022 Annual Meeting. SER-109 has received Breakthrough Therapy and Orphan Drug designations from the FDA, indicating its potential to improve treatment standards. The urgent need for effective solutions is underscored by CDC data showing nearly 170,000 annual C. difficile cases in the U.S.

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Seres Therapeutics (NASDAQ: MCRB) presented at the World Anti-Microbial Resistance Congress on September 7-8, 2022, discussing advancements in microbiome therapeutics to combat antibiotic-resistant bacterial infections. Chief Scientific Officer Dr. Matthew Henn highlighted Phase 3 data showing that SER-109 reduced antibiotic-resistant pathogens. The company also focuses on SER-155, targeting patients undergoing stem cell transplantation. SER-109's Biologics License Application has been filed with the FDA, with a commercial launch expected in early 2023.

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Seres Therapeutics (Nasdaq: MCRB) has completed its rolling submission for a Biologics License Application (BLA) to the FDA for SER-109, targeting recurrent C. difficile infections. With FDA Breakthrough Therapy designation, SER-109 could launch in the first half of 2023, aiming to be the first FDA-approved oral microbiome therapeutic. The submission is based on promising Phase 3 trial results showing an 88% sustained response rate compared to 60% for placebo. Seres has partnered with Aimmune Therapeutics for commercialization, receiving an upfront payment of $175 million.

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Seres Therapeutics, Inc. (Nasdaq: MCRB), a leader in microbiome therapeutics, announced that CEO Eric Shaff will participate in the Canaccord Genuity 42nd Annual Growth Conference on August 10 at 12:30 p.m. ET. An audio webcast of the event will be accessible on the company's website, with a replay available for 21 days.

Seres is known for its SER-109 program, the first microbiome drug candidate to achieve positive pivotal clinical results, aimed at preventing C. difficile infection recurrences, and is also developing SER-155 to reduce infections in transplant patients.

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Seres Therapeutics (MCRB) reported significant progress in its microbiome therapeutic SER-109, with confirmatory Phase 3 study results showing a sustained clinical response in 91.3% of recurrent C. difficile infection patients. The company initiated a rolling Biologics License Application (BLA) submission, expected to be completed soon. Financially, Seres strengthened its position with a $100 million equity offering, bringing its pro-forma cash balance to approximately $291.4 million. Despite a net loss of $64.7 million for Q2 2022, the company remains optimistic about SER-109's commercial potential.

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Seres Therapeutics, Inc. (Nasdaq: MCRB) will host a conference call on August 3, 2022 at 8:30 a.m. ET to discuss its second quarter results and provide a business update.

Seres is noted for its SER-109 program, which has achieved significant clinical results in targeting C. difficile infections, receiving both Breakthrough Therapy and Orphan Drug designations from the FDA. The company is also advancing its SER-155 program to reduce infections in patients undergoing stem cell transplants.

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FAQ

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

The current stock price of Seres Therapeutics (MCRB) is $13.63 as of February 4, 2026.

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

The market cap of Seres Therapeutics (MCRB) is approximately 139.3M.
Seres Therapeutics Inc

Nasdaq:MCRB

MCRB Rankings

MCRB Stock Data

139.32M
7.91M
12.94%
26.03%
11.56%
Biotechnology
Pharmaceutical Preparations
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United States
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