Exhibit 99.1 SERES THERAPEUTICS REPORTS FIRST QUARTER 2024 FINANCIAL RESULTS AND PROVIDES BUSINESS UPDATES Continued market adoption of VOWST® with approximately 1,411 patient enrollment forms received, approximately 1,083 new patient starts, and net sales of $10.1 million during Q1 2024, and accelerated net sales in March and April SER-155 Phase 1b placebo-controlled Cohort 2 clinical readout expected end of Q3 2024 Further microbiome therapeutic candidates have potential to expand product franchise into a ...

Seres Therapeutics, Inc. (NASDAQ:MCRB) Q4 2023 Earnings Call Transcript March 5, 2024 8:30 AM ET Company Participants Rob Windsor - IR Eric Shaff - CEO Terri Young - CCO & CSO Lisa von Moltke - CMO David Arkowitz - CFO Dave Ege - CTO Matthew Henn - Chief Scientific Officer Conference Call Participants Jeff Jones - Oppenheimer John Newman - Canaccord Tess Romero - JPMorgan Peyton Bohnsack - TD Cowen Chris Shibutani - Goldman Sachs Keay Nakae - Chardan Operator Ladies and gentlemen, good morning. My name is A ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37465 le Seres Therapeutics, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 27-4326290 (State or Other Jurisdict ...

Seres Therapeutics, Inc. (NASDAQ:MCRB) Q3 2023 Results Conference Call November 2, 2023 8:00 AM ET Company Participants Kevin Mannix - Head, IR Eric Shaff - CEO Dr. Terri Young - Chief Commercial Officer David Arkowitz - CFO Conference Call Participants Joseph Thome - TD Cowen Edward Tenthoff - Piper Sandler Tessa Romero - JPMorgan Jeff Jones - Oppenheimer Keay Nakae - Chardan Stephen Sloan - Goldman Sachs Operator Welcome to the Seres Therapeutics Third Quarter 2023 Financial Results Conference Call. [Oper ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Exact name of registrant as specified in its charter) Delaware 27-4326290 (State or other jurisdiction of (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37465 Seres Ther ...

Seres Therapeutics, Inc. (NASDAQ:MCRB) Q2 2023 Earnings Conference Call August 8, 2023 8:30 AM ET Company Participants Carlo Tanzi - IR Officer Eric Shaff - President and CEO Lisa von Moltke - EVP and Chief Medical Officer Terri Young - Chief Commercial Officer David Arkowitz - EVP, CFO and Head of Business Development Matthew Henn - Chief Scientific Officer Conference Call Participants Joseph Thome - TD Cowen Edward Tenthoff - Piper Sandler Tessa Romero - JPMorgan Operator Ladies and gentlemen, thank you f ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37465 Seres Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 27-4326290 (State or other jurisd ...

Start Time: 08:30 January 1, 0000 9:18 AM ET Seres Therapeutics, Inc. (NASDAQ:MCRB) Q1 2023 Earnings Conference Call May 09, 2023, 08:30 AM ET Company Participants Eric Shaff - President and CEO Terri Young - EVP, Chief Commercial and Strategy Officer Lisa von Moltke - EVP and Chief Medical Officer David Arkowitz - EVP, CFO and Head of Business Development David Ege - EVP, Chief Technology Officer Matthew Henn - EVP, Chief Scientific Officer Carlo Tanzi - IR Officer Conference Call Participants Mark Breiden ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37465 Seres Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 27-4326290 (State or other juris ...

Seres Therapeutics Corporate Overview Some of the statements in this presentation constitute "forward looking statements" under the Private Securities Litigation Reform Act of 1995, including, but not limited to the potential approval and launch of SER-109; the anticipated indication for SER-109; the anticipated supply of SER-109; the potential for microbiome therapeutics to protect against infection; the timing of clinical development; our development opportunities and plans; the ultimate safety and effica ...