PureTech’s Seaport Therapeutics announces an oversubscribed $225 million Series B financing round

LONDON: PureTech Health plc (Nasdaq: PRTC, LSE: PRTC) noted that its founded entity, Seaport Therapeutics, a biopharmaceutical company that is advancing novel neuropsychiatric medicines with a proven strategy and team, today announced the closing of an oversubscribed $225 million Series B financing round.

The syndicate was led by General Atlantic, a leading global growth investor, with participation from funds and accounts advised by T. Rowe Price Associates, Inc., Foresite Capital, Invus, Goldman Sachs Alternatives, CPP Investments, and other new investors.

Founding investors ARCH Venture Partners, Sofinnova Investments, Third Rock Ventures, and co-founder PureTech also participated. Following the Series B financing, PureTech will hold equity ownership in Seaport of 36.7% on a diluted basis.

The financing brings the total capital raised by Seaport to $325 million since the Company’s launch in April 2024. Seaport will use the proceeds to advance its clinical-stage pipeline of first and best-in-class medicines through important clinical milestones as well as further advance the capabilities of the Glyph™ technology platform, which has demonstrated clinical proof-of-concept.

The programs in Seaport’s pipeline use the Glyph platform, which is designed to enable and enhance oral bioavailability, avoid first-pass metabolism and reduce liver enzyme elevations or hepatotoxicity and other side effects to advance clinically active drugs that were previously hindered by those limitations.

Commenting on today’s announcement, Bharatt Chowrira, PhD, JD, Chief Executive Officer of PureTech and a member of the Seaport Board of Directors, said: “We’re very pleased with Seaport’s $225 million Series B financing. Led by a syndicate of top-tier investors, this milestone highlights the significant progress we’re making across our portfolio. The strong support from this stellar investor group not only reinforces the value generated by our unique R&D engine but also underscores our commitment to advancing transformative therapies for patients.

As we look ahead to the upcoming data readout for our internal LYT-100 (deupirfenidone) program, we’re excited to continue driving innovation across our portfolio with the goal of delivering impactful treatments that address significant medical needs.”

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