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PAQ Therapeutics raises $77M in Series B extension funding to support the Phase 1 development of PT0253 and clinical advancement of PT0511.

PRIVATEJan 26, 2026

Amount Raised

$77 Million

Round Type

Series B

BurlingtonBiotechnologyHealth CareTherapeutics

Description

PAQ Therapeutics, a Burlington, MA-based clinical-stage oncology company, raised a Series B extension funding. This brought the total Series B funding to $77M. The company plans to use the funds for its ongoing Phase 1 development of PT0253 and the clinical advancement of PT0511. The funding follows previously announced financing with participation from both existing and new investors.

Quick answer

PAQ Therapeutics raised $77 Million in a Series B round, dated January 26, 2026. PAQ Therapeutics is based in Burlington, Massachusetts, United States.

How much did PAQ Therapeutics raise?
PAQ Therapeutics raised $77 Million in a Series B round on January 26, 2026.
What does PAQ Therapeutics do?
PAQ Therapeutics is a biotechnology company pioneering a new approach to restoring heath and curing disease through autophagy, the body’s most versatile mechanism for natural cellular degradation.
Where is PAQ Therapeutics based and how big is it?
PAQ Therapeutics is based in Burlington, Massachusetts, United States. Fundz records about 8 employees.
Who are the decision-makers at PAQ Therapeutics?
Fundz holds 1 contact at PAQ Therapeutics. Names and contact details are shown to Fundz members.

Source: Fundz verified event record.

Who else raised in Therapeutics and Biotechnology around the same time

Companies in the same sectors as PAQ Therapeutics that raised within 45 days of this round, from Fundz verified event records.

  • Combat Medical raised $3.5M (Series A) on March 12, 2026.
  • GenSight Biologics raised $2M (Post-IPO Equity) on March 10, 2026.
  • Prolium Bioscience raised $50M (Series A) on March 5, 2026.
  • NexCure raised $19M (Series A) on March 5, 2026.
  • Os Therapies raised $2M on March 4, 2026.
  • Antiverse raised $9.3M (Series A) on March 3, 2026.

Who to call at PAQ Therapeutics, and when

A new round usually means PAQ Therapeutics is about to hire and buy. The teams that reach out first get the meeting.

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Company Information

Company

PAQ Therapeutics

Location

100 Summit Dr

Burlington, Massachusetts, United States

About

PAQ Therapeutics is a biotechnology company pioneering a new approach to restoring heath and curing disease through autophagy, the body’s most versatile mechanism for natural cellular degradation. With our ATTEC (autophagosome-tethering compound) technology, we are developing a novel class of small molecule degraders capable of binding a diverse array of substrates to the autophagy pathway including proteins, aggregates, lipids, organelles and pathogens. PAQ’s research advances in this important new class of degradation therapies have the potential to fundamentally transform drug discovery and development.

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Funding Insights

What this usually means
Timeline to next round
Series B companies typically work for 15-20 months before raising new capital
Growth expectations
Series B companies are expected to scale rapidly and expand market reach

PAQ Therapeutics raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

145 of these a day, filtered to the companies you pick, with the decision-maker attached.

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Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals, including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications, based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 281,000+ organizations. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.