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Seaport Therapeutics SPTX

US equityMarket cap rank #3270Biotechnology
$17.93 +$0.56 (+3.22%)
Market closed · Oct 8, 7:40 am ET · Last extended-hours $17.93 0.00%
Open$17.28
Prev close$17.37
Day range$17.07 – $18.29
Volume249.1K
Market cap$959.80M
P/E (TTM)–
Dividend yield–
CEOMs. Daphne Zohar
Employees58
HeadquartersBoston, United States of America
Websitewww.seaporttx.com

Management team

Daphne Zohar President, Chief Executive Officer and Director
Age 55 · Total comp. $1,260,422.00 · As of 9 Apr 2026

Daphne Zohar. Ms. Zohar was our founder and has served as our President and Chief Executive Officer and as a member of our board of directors since April 2024. Prior to joining us, Ms. Zohar served as Founder, Chief Executive Officer and as a member of the board of directors of PureTech (Nasdaq/LSE: PRTC), since its formation in June 2015 to April 2024, and since 2005 at PureTech's predecessor entity. A successful entrepreneur, Ms. Zohar created PureTech, assembling a leading team and scientific network to help implement her vision for the company, and was a key participant in fundraising, business development and establishing the underlying programs and platforms that have resulted in PureTech's substantial pipeline of products and product candidates. She also co-founded PureTech's entities, including Karuna Therapeutics, Inc. (formerly Nasdaq: KRTX), which developed the groundbreaking antipsychotic drug, Cobenfy (KarXT). The FDA approval of Cobenfy in September 2024 marked the first new schizophrenia mechanism in 70 years. Following FDA approval of Cobenfy (invented by PureTech), Karuna was acquired by Bristol Myers Squibb for $14 billion. Ms. Zohar was a key driver in PureTech's productive R&D engine, which led to 28 new medicines and a clinical success rate at PureTech and founded entities that was around six times better than the industry average during her tenure. Ms. Zohar is a founder & co-host of the weekly podcast Biotech Hangout. Ms. Zohar received a B.S. from Northeastern University.

Dr. Michael C Chen, PhD Chief Scientific Officer
Age 42 · Total comp. $1,094,962.00 · As of 9 Apr 2026

Michael C. Chen, Ph.D. Dr. Chen has served as our Chief Scientific Officer since May 2024. Prior to joining us, Dr. Chen served various roles at PureTech from 2016 to May 2024, most recently as Head of Innovation from 2016 to May 2024, where he oversaw the rapid advancement of the neuropsychiatric medicines that led to our launch. From 2016 to 2019, Dr. Chen was also co-founder and Head of Research and Strategy at Sonde Health, Inc., a company developing vocal biomarkers for depression and other neuropsychiatric disorders. He was a postdoctoral fellow at Beth Israel Deaconess Medical Center and Harvard Medical School, Department of Neurology. Dr. Chen completed his Ph.D. at Stanford University, focusing on the neurobiological mechanisms of depression and sleep disorders. He received a B.A. from Yale University.

Dr. Antony Loebel, PhD Chief Medical Officer and President, Clinical Development
Age 65 · Total comp. $670,250.00 · As of 9 Apr 2026

Antony Loebel, M.D. Dr. Loebel has served as our Chief Medical Officer and President of Clinical Development since June 2024. He was previously the President and Chief Executive Officer of Sunovion Pharmaceuticals Inc. from April 2019 to June 2023, and served as Chief Medical Officer from 2011 to March 2019. During his tenure at Sunovion, Dr. Loebel played a key role in the company's growth to over $3.5 billion in total revenue and was instrumental in the development and commercialization of Latuda for the treatment of bipolar depression and schizophrenia. Prior to his time at Sunovion, he held senior roles in research and development and medical affairs at Dainippon Sumitomo Pharma America and Pfizer Inc. (NYSE: PFE). Dr. Loebel earned his M.D. from the University of Washington in Seattle, completed his psychiatry residency at the Zucker Hillside Hospital in New York, and is board certified in psychiatry.

Dr. Steven M. Paul, M.D. Chairman of the Board
Age 75 · Total comp. $500,000.00 · As of 9 Apr 2026

Steven M. Paul, M.D. Dr. Paul has been a member and chair of our board of directors since April 2024. Dr. Paul was one of our founders and has also served as our senior advisor since February 2024. From August 2018 to January 2024, Dr. Paul served in senior leadership roles at Karuna Therapeutics, Inc. (Nasdaq: KRTX, prior to its recent acquisition by Bristol Myers Squibb Company), including as Chief Scientific Officer and President of Research and Development from January 2023 to January 2024, and President, Chief Executive Officer, and Chairman of the board of directors from August 2018 to January 2023. Dr. Paul has also served as a Venture Partner at Third Rock Ventures since 2010. Dr. Paul is also board certified by the American Board of Psychiatry and Neurology. Dr. Paul has served on the board of directors of Rapport Therapeutics, Inc. (Nasdaq: RAPP) since December 2022 and Sage Therapeutics, Inc. (Nasdaq: SAGE) from September 2011 until June 2024 and is also the chairman of the board of directors of the Foundation for the National Institutes of Health (FNIH). Previously, Dr. Paul served on the boards of directors of Alnylam Pharmaceuticals, Inc. (Nasdaq: ALNY) from September 2010 to April 2022, Voyager Therapeutics, Inc. (Nasdaq: VYGR) from September 2014 to June 2022 and Karuna Therapeutics, Inc. from March 2018 to March 2024. Dr. Paul also previously spent 17 years at Eli Lilly and Company (NYSE: LLY), during which time he held several leadership roles, including Executive Vice President for Science and Technology, and President of the Lilly Research Laboratories. Prior to Lilly, Dr. Paul spent 18 years at the National Institute of Mental Health (NIMH) where he served as Scientific Director. Dr. Paul received a Bachelor of Arts degree in biology and psychology from Tulane University and Master of Science and Doctor of Medicine degrees from the Tulane University School of Medicine.

Robert J. Hombach Independent Director
Age 60 · Total comp. $462,244.00 · As of 9 Apr 2026

Robert J. Hombach. Mr. Hombach has been a member of our board of directors since March 2025. Mr. Hombach served as the Executive Vice President, Chief Financial Officer and Chief Operations Officer of Baxalta (NYSE: BXLT), a global biopharmaceutical company, until it was acquired by Shire plc. in 2016. Mr. Homach has served on the board of directors of Henry Schein Inc (Nasdaq: HSIC) since February, 2025, BioMarin Pharmaceutical Inc (Nasdaq: BMRN) since September 2017, Embecta Corp. (Nasdaq: EMBC) since April, 2022, Aptinyx Inc. from April, 2018 to December, 2023, CarMax Inc, (NYSE: KMX) from March, 2018 to June, 2022. He was instrumental in Baxalta's successful spin off from its parent company, Baxter (NYSE: BAX), where he previously served as Corporate Vice President and Chief Financial Officer. In addition to his board positions at BioMarin and Henry Schein, Mr. Hombach is the Chair of the Audit Committee at Embecta, a global diabetes care company spun out of Becton Dickinson, and has held previous board positions at several other companies including Naurex, Inc., which was acquired by Allergan in 2015. Mr. Hombach received an MBA from Northwestern University's J.L. Kellogg Graduate School of Management, and a BS in Finance cum laude from the University of Colorado.

Sandra E. Peterson Independent Director
Age 67 · Total comp. $35,000.00 · As of 9 Apr 2026

Sandra E. Peterson. Ms. Peterson has been a member of our board of directors since November 2024. She has served as an Operating Partner at Clayton Dubilier & Rice, or CD&R, a private investment firm, since April 2019 where she invests in life sciences and consumer companies and oversees technology initiatives to enhance performance of the firm's portfolio companies. Prior to joining CD&R, Ms. Peterson was the Group Worldwide Chair for Johnson & Johnson, or J&J, where she led J&J's consumer and medical devices businesses and was responsible for global operating infrastructure, technology, supply chain, quality, and key strategic initiatives from 2012 to 2018. Ms. Peterson currently serves as Lead Independent Director of Microsoft Corp. (Nasdaq: MSFT) since March 2023 and a member of its board of directors since December 2015. She also serves as Executive Chairwoman of the board of directors of Volastra Therapeutics since October 2019. Ms. Peterson received her M.P.A. from Princeton University and a B.A. from Cornell University.

Dr. David Wheadon, M.D. Independent Director
Age 68 · Total comp. $35,000.00 · As of 9 Apr 2026

David Wheadon, M.D. Dr. Wheadon has been a member of our board of directors since July 2024. He served as Senior Vice President, Global Regulatory Affairs, Patient Safety, and Quality Assurance for AstraZeneca Pharmaceuticals from 2014 to 2019 and as Executive Vice President, Research and Advocacy at the Juvenile Diabetes Research Foundation from 2013 to 2014. From 2009 to 2013, Dr. Wheadon served as Senior Vice President, Scientific and Regulatory Affairs and as a member of the Management Committee of the Pharmaceutical Research and Manufacturers of America, or PhRMA. Prior to his joining PhRMA, Dr. Wheadon held senior regulatory and clinical development leader roles at Abbott Laboratories and GlaxoSmithKline plc. Dr. Wheadon began his career as a clinical research physician in neuroscience at Eli Lilly & Company. Dr. Wheadon has served on the board of directors of Indivior, PLC (Nasdaq: INDV) since June 2024, Vaxart, Inc. (Nasdaq: VXRT) since April 2021, and Sotera Health, Inc. (Nasdaq: SHC) since May 2021. He formerly served on the board of directors of Assertio Holdings, Inc. (formerly Assertio Therapeutics, Inc.), Karuna Therapeutics, Inc., and Chemocentryx, Inc. Dr. Wheadon holds an A.B. from Harvard College and an M.D. from Johns Hopkins University School of Medicine. He completed his fellowship training in Psychiatry at the Tufts, New England Medical Center.

Denice Torres, J.D. Independent Director
Age 66 · Total comp. $35,000.00 · As of 9 Apr 2026

Denice Torres, J.D. Ms. Torres has been a member of our board of directors since May 2024. Ms. Torres is the founder and Chief Executive Officer of The Ignited Company, a consulting firm she founded in November 2017, and is also the founder of The Mentoring Place, a nonprofit organization established in 2017. From December 2004 to December 2017, Ms. Torres served in senior leadership roles at Johnson & Johnson, including President of J&J Neuroscience, President of J&J Consumer Health, and Chief Strategy and Transformation Officer of the J&J Medical Device Sector. Prior to that, from 1990 to 2004, Ms. Torres held various leadership positions at Eli Lilly and Company, including Executive Director of Global Neuroscience and Director of U.S. Women's Health. Ms. Torres currently serves on the board of directors of Celldex Therapeutics Inc. (Nasdaq: CLDX), Glaukos Corp. (Nasdaq: GKOS), National Resilience Inc., and ByHeart Inc. Ms. Torres previously served on the boards of Karuna Therapeutics, Inc., 2seventy bio, Inc., Thirty Madison, bluebird bio, Inc., and Surface Oncology, Inc. Ms. Torres holds an M.B.A. from the University of Michigan, a J.D. from Indiana University School of Law, a B.S. in Psychology from Ball State University, and an M.A. in the Study of Happiness from Centenary University. She is currently pursuing a Ph.D. in Happiness Studies at Centenary University.

Robert Lyne Independent Director
Age 42 · As of 26 Apr 2026

Mr. Lyne is the chief executive officer and board member at PureTech and is expected to resign as a director immediately prior to the effectiveness of the registration statement of which this prospectus forms a part. Mr. Lyne is a seasoned executive with deep experience in life sciences, including his prior role as Chief Executive Officer at Arix Bioscience plc, a transatlantic venture capital company focused on investing in innovative biotechnology companies from April 2021 to December 2023. Mr. Lyne brings more than a decade of experience leading London-listed life science companies and portfolio management, with a strong track record in governance and executive team leadership. Mr. Lyne began his career as a lawyer at international law firm Bird & Bird LLP in London before moving to Touchstone Innovations, a London listed biotech and technology investor, which was acquired in 2017. Mr. Lyne has a BA from the University of Oxford and an LLB from Oxford Brookes University.

Robert Nelsen Independent Director
Age 62 · As of 26 Apr 2026

Mr. Nelsen has been a member of our board of directors since April 2024 and is expected to resign as a director immediately prior to the effectiveness of the registration statement of which this prospectus forms a part. Mr. Nelsen co-founded ARCH Venture Partners, L.P., a venture capital firm focused on early-stage technology companies, in 1986 and has served as a Managing Director of ARCH Venture Partners or its affiliated entities since 1994. Mr. Nelsen has served on the board of directors of Prime Medicine, Inc. (Nasdaq: PRME) since September 2020, and Sana Biotechnology, Inc. (Nasdaq: SANA) since October 2018, each a U.S. publicly traded biotechnology company. Mr. Nelsen has served as the Chairman and as a member of the board of directors of Hua Medicine, Inc., a Hong Kong publicly listed drug development company, since April 2010 and currently serves on the board of directors of a number of private companies. Mr. Nelsen previously served on the board of directors of a number of public biotechnology companies, including Vir Biotechnology, Inc. from 2016 to 2025, Lyell Immunopharma, Inc. from 2018 to 2025, Brii Biosciences, Inc., from 2018 to 2024, Revolution Healthcare Acquisition Corp. from 2021 to 2022, Denali Therapeutics Inc. from 2015 to 2022, Unity Biotechnology, Inc. from 2015 to December 2020, Agios Pharmaceuticals, Inc. from 2007 to June 2017, Syros Pharmaceuticals, Inc. from 2012 to June 2018, Juno Therapeutics, Inc. (acquired by Celgene Corporation in January 2018) from 2013 to March 2018, Sienna Biopharmaceuticals, Inc. from 2015 to September 2018 and Gossamer Bio, Inc. from 2017 to December 2018 (prior to its initial public offering). Mr. Nelsen received his M.B.A. from the University of Chicago and his B.S. from the University of Puget Sound in Economics and Biology.

Lauren A. White Chief Financial Officer and Principal Accounting Officer
Age 47 · As of 26 Apr 2026

Lauren A. White. Ms. White has served as our Chief Financial Officer since November 2024. Prior to joining us, Ms. White served as the Chief Financial Officer and Treasurer of ImmunoGen, Inc. (formerly Nasdaq: IMGN), or ImmunoGen, from September 2023 to June 2024 prior to its acquisition by AbbVie. Prior to that, she served as Chief Financial Officer, Treasurer, and Principal Accounting Officer at C4 Therapeutics, Inc. (Nasdaq: CCC) from June 2021 to September 2023, and held roles of increasing responsibility at Novartis AG (NYSE: NVS), most recently as Vice President, Finance, and Global Head of Business Planning and Analysis at Novartis Institutes for BioMedical Research from July 2017 to June 2021. Ms. White earned an M.B.A. from Harvard Business School and a B.S. from the Carroll School of Management at Boston College.

Dr. Sharon Mates, PhD. Independent Director
Age 73 · As of 26 Apr 2026

Sharon Mates, Ph.D., will join our Board upon the effectiveness of the registration statement of which this prospectus forms a part. She served as Chairman of the Board, President and Chief Executive Officer of Intra-Cellular Therapies, Inc., which she co-founded in 2002, until its acquisition by Johnson & Johnson in 2025. During her tenure, Intra-Cellular Therapies developed and commercialized CAPLYTA, an FDA-approved treatment for schizophrenia, bipolar depression, and was under FDA review for adjunctive treatment for major depressive disorder. Earlier in her career, Dr. Mates served as President and a board member of North American Vaccine, Inc., where she oversaw the development of pediatric vaccines, and also helped to found other biotechnology companies. Dr. Mates has served on several not-for-profit and industry organizations, including as Chair of the New York Biotechnology Association and a board member of the Biotechnology Industry Organization. Dr. Mates brings extensive leadership experience in building and scaling biotechnology companies and advancing innovative therapies from discovery through commercialization. She currently serves as a director of Medincell S.A. (EPA: MEDCL) and Benitec Biopharma (Nasdaq: BNTC). She has also served on advisory councils affiliated with Harvard School of Public Health and the University of Maryland Biotechnology Institute. Dr. Mates received a B.S. from the Ohio State University, a Ph.D. from the University of Washington, and completed postdoctoral fellowships at Massachusetts General Hospital and Harvard Medical School.

Dr. Eric Elenko, PhD Independent Director
Age 53 · As of 9 Apr 2026

Eric Elenko, Ph.D. Dr. Elenko has been a member of our board of directors since April 2024. Dr. Elenko is the co-founder of PureTech Health (Nasdaq: PRTC) where he has served as the President since April 2024. Prior to his current role, Dr. Elenko previously served as PureTech Health's Chief Innovation Officer from June 2015 through April 2024. Prior to serving as Chief Innovation Officer, Dr. Elenko held multiple other leadership roles within PureTech. Prior to joining PureTech Health, Dr. Elenko was a consultant with McKinsey and Company. Dr. Elenko has served on the Board of Directors of multiple PureTech portfolio companies during his tenure with PureTech. Dr. Elenko received his Ph.D. in biomedical sciences from the University of California, San Diego and his B.A. in biology from Swarthmore College. Our board of directors believes that Dr. Elenko is qualified to serve on our board of directors because of his extensive understanding of the biotechnology and pharmaceutical industries and his senior management experience.

Dr. Jason Pitts, PhD Independent Director
Age 40 · As of 9 Apr 2026

Jason Pitts, Ph.D. Dr. Pitts has been a member of our board of directors since October 2024. Dr. Pitts has served as Principal at General Atlantic since December 2024, and prior to such role served in various roles, including Vice President, since March 2021 at General Atlantic, and focuses on investments in the life sciences sector. Prior to joining General Atlantic, he was a Principal at Sofinnova Investments focused on therapeutics investments from June 2019 to January 2021. Dr. Pitts has also served as a board member of Solve Therapeutics since December 2024, CinCor Pharma, Inc. from October 2021 to February 2023 and Bolt Biotherapeutics, Inc. from July 2020 to January 2021. He received his Ph.D. in neuroscience from The Rockefeller University and a B.S. in neuroscience from Cornell University. Our board of directors believes that Dr. Pitts is qualified to serve on our board of directors due to his extensive expertise in healthcare investing and experience as a board member of other biotechnology companies.

Lana Gladstein, J.D. General Counsel
Age 50 · As of 9 Apr 2026

Lana Gladstein, J.D. Ms. Gladstein has served as our General Counsel since June 2024. Prior to joining us, she served as the Group General Counsel at APRINOIA Therapeutics, Inc. (Nasdaq: APRI) from May 2023 to June 2024. From June 2022 to May 2023, she also served as Chief Legal Officer of Recipharm AB North America from June 2022 to May 2023, Chief Legal Officer and General Counsel of Arranta Bio (acquired by Recipharm) from November 2019 to May 2023 and Executive Vice President and General Counsel of Brammer Bio (acquired by Thermo Fisher Scientific) from March 2017 to October 2019. Prior to that, Ms. Gladstein was a partner at the law firm of Nutter McClennen & Fish LLP and Pepper Hamilton LLP. Ms. Gladstein holds a J.D. from Northeastern University School of Law and a B.A. in Biology from Brandeis University.

Dr. James I. Healy, M.D.,PhD Independent Director
Age 61 · As of 9 Apr 2026

James I. Healy, M.D., Ph.D. Dr. Healy has been a member of our board of directors since April 2024. Dr. Healy has served as Managing Partner of Sofinnova Investments, Inc. since June 2000. Dr. Healy has served on the boards of directors of Rapport Therapeutics, Inc. (Nasdaq: RAPP) since August 2023, ArriVent Biopharma, Inc. (Nasdaq: AVBP) since March 2023 and BioAge Labs, Inc. (Nasdaq: BIOA) since February of 2024. Previously, Dr. Healy served on numerous public company boards of directors including Bolt Biotherapeutics, Inc. (Nasdaq: BOLT) from January 2021 until September 2024, Natera, Inc. (Nasdaq: NTRA) from November 2014 until June 2025, Y-mAbs Therapeutics, Inc. (Nasdaq: YMAB) from November 2017 until September 2025, Ascendis Pharma A/S (Nasdaq: ASND) from November 2014 to May 2022, Amarin Corporation PLC (Nasdaq: AMRN) from May 2008 to December 2016, CinCor Pharma, Inc. (Nasdaq: CINC, prior to its recent acquisition by AstraZeneca PLC) from May 2019 to February 2023, Coherus BioSciences, Inc. (Nasdaq: CHRS) from February 2014 to February 2022, Karuna Therapeutics, Inc. (Nasdaq: KRTX, prior to its recent acquisition by Bristol Myers Squibb Company) from June 2019 to March 2024, Iterum Therapeutics plc (Nasdaq: ITRM) from November 2015 to February 2020, ObsEva SA (Nasdaq: OBSEF) from August 2013 to May 2021, and NuCana PLC (Nasdaq: NCNA) from March 2014 to April 2022. He also previously served as a director on the Board of the National Venture Capital Association (NVCA) and the Board of the Biotechnology Industry Organization (BIO). Dr. Healy holds Bachelor of Arts degrees in molecular biology and Scandinavian studies from the University of California, Berkeley, and Doctor of Medicine and Doctor of Philosophy degrees in immunology from Stanford University School of Medicine.

From SEC filings, via Futu. Compensation is total reported pay for the most recent fiscal year on file, not base salary alone.

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