Sionna Therapeutics Closes $219.2M IPO
Deal News | Feb 11, 2025 | Ropes & Gray
Sionna Therapeutics, headquartered in Massachusetts, has successfully closed its upsized initial public offering (IPO) at $219.2 million, marking the first IPO from a Massachusetts company in 2025. The IPO saw 12,176,467 shares of common stock offered at $18 per share. The underwriters were represented by Ropes & Gray, an influential law firm known for handling life sciences IPOs. The capital markets partners from Ropes & Gray, Tara Fisher and Tom Danielski, led the team alongside several specialists in life sciences, regulatory compliance, intellectual property, healthcare, executive compensation, and cybersecurity. This milestone adds to Ropes & Gray's strong portfolio of life sciences IPOs, having previously advised CAMP4 Therapeutics, Bicara Therapeutics, and Zenas BioPharma.
Sectors
- Biopharmaceutical
- Legal Services
- Finance
Geography
- United States – Sionna Therapeutics is headquartered in Massachusetts, and the IPO activities took place in the U.S.
Industry
- Biopharmaceutical – Sionna Therapeutics operates in the biopharmaceutical industry, focusing on developing medicines for cystic fibrosis.
- Legal Services – Ropes & Gray, the legal advisor for the IPO, specializes in providing legal services particularly in capital markets, life sciences, and regulatory compliance.
- Finance – The article discusses financial activities related to an initial public offering, significant in the finance sector.
Financials
- $219.2 Million – The total value of the upsized initial public offering for Sionna Therapeutics.
- $18 per share – The price per share for Sionna Therapeutics' IPO.
Participants
| Name | Role | Type | Description |
|---|---|---|---|
| Sionna Therapeutics | Target Company | Company | A Massachusetts-headquartered clinical-stage biopharmaceutical company focusing on novel treatments for cystic fibrosis. |
| Ropes & Gray | Legal Advisor | Company | An international law firm that advised the underwriters on Sionna Therapeutics' IPO. |
| Tara Fisher | Capital Markets Partner | Person | Lead partner from Ropes & Gray on the IPO team. |
| Tom Danielski | Capital Markets Partner | Person | Lead partner from Ropes & Gray on the IPO team. |