Avalyn Receives $100 Million in Series D Financing to Advance Pulmonary Fibrosis Treatments

Deal News | Jul 23, 2025 | Goodwin

Avalyn Pharma Inc. has successfully raised $100 million in an oversubscribed Series D financing round. This financial milestone was achieved with advisory support from Goodwin Procter LLP and co-led by investment firms Suvretta Capital Management and SR One. Additional participation came from a diverse array of investors, including Novo Holdings A/S, F-Prime, and others. The newly acquired funds will be directed towards advancing Avalyn's pipeline of therapies for pulmonary fibrosis. These therapies aim to reduce systemic exposure and deliver medication directly to the affected lung tissues through innovative inhaled formulations of existing medications, specifically, pirfenidone and nintedanib. Avalyn’s pioneering approach is designed to improve efficacy and safety, addressing a significant need in the treatment of pulmonary fibrosis, which is marked by the progressive scarring of lung tissue. The Series D financing marks a significant step in bringing these inhaled formulations to patients, with key clinical trials underway or planned. Goodwin Procter's team, led by Stephanie Richards and others, played a crucial role in facilitating this financing round.

Sectors

  • Life Sciences
  • Pharmaceuticals
  • Investment & Finance

Geography

  • United States – Avalyn Pharma Inc. and many of the investors, as well as Goodwin Procter, are based in the United States, signifying the primary geography where these financial and scientific activities are situated.

Industry

  • Life Sciences – The article discusses Avalyn’s development of treatments for pulmonary fibrosis, focusing on inhaled formulations of approved medications in the life sciences industry.
  • Pharmaceuticals – Avalyn is working on new formulations of existing pharmaceuticals, specifically targeting pulmonary fibrosis through innovative delivery mechanisms.
  • Investment & Finance – Involves the significant capital raise financed by venture capital firms and other investment bodies led by Goodwin Procter.

Financials

  • $100 million – The amount raised by Avalyn Pharma through Series D financing.

Participants

NameRoleTypeDescription
Avalyn Pharma Inc.Target CompanyCompanyAvalyn is a biopharmaceutical company focused on developing innovative treatments for pulmonary fibrosis.
Goodwin Procter LLPLegal AdvisorCompanyGoodwin provided legal advisory services in Avalyn’s $100 million Series D financing.
Suvretta Capital ManagementCo-lead InvestorCompanyAn investment firm co-leading the Series D financing round.
SR OneCo-lead InvestorCompanyThe venture capital arm of GlaxoSmithKline, co-leading the Series D round.
Stephanie RichardsLegal Advisor LeadPersonLeader of the Goodwin Procter team advising Avalyn.
Kristen McCarthyLegal AdvisorPersonPart of the Goodwin team advising Avalyn.
Mitchell BloomLegal AdvisorPersonPart of the Goodwin team advising Avalyn.
Novo Holdings A/SInvestorCompanyParticipated in Avalyn’s Series D funding.