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Definium Therapeutics closes a record-breaking $805M funding round following a successful Phase 3 clinical trial. This financing marks the largest ever in the psychedelics sector.

PUBLIC · DFTXJul 24, 2026

Amount Raised

$805 Million

Round Type

Post-IPO Equity

New YorkBiotechnologyHealthcareHealth CareTherapeutics

Description

Definium Therapeutics has successfully secured $805 million in funding, making it the largest fundraising event in the psychedelics sector. This capital influx is a result of the company’s positive Phase 3 readout, paving the way for further development. The funding will be crucial in advancing their LSD drug development efforts. This unprecedented investment reflects growing interest and confidence in psychedelics as a therapeutic area.

Who else raised in Healthcare and Therapeutics around the same time

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

  • CytoDyn raised $17M on September 1, 2026.
  • BioLineRx Ltd raised $3.8M on August 27, 2026.
  • Amylyx Pharmaceuticals raised $500M (Post-IPO Equity) on August 20, 2026.
  • Os Therapies raised $5M on August 10, 2026.
  • NewcelX raised $2.9M on July 3, 2026.
  • Os Therapies raised $1.6M on June 30, 2026.

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Company Information

Company

Definium Therapeutics

Location

New York, New York, United States

About

Definium Therapeutics is dedicated to drug development with a strong focus on LSD-based therapies. The company aims to bring innovative solutions to the mental health space, leveraging the therapeutic potential of psychedelics. Their recent positive Phase 3 readout has positioned them as a leader in the psychedelics industry.

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

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