Who Just RaisedGossamer Bio, Inc.
San Diego, CA · Biotechnology
Gossamer Bio, Inc. is a biotechnology company based in San Diego, California. In a Form D filed with the SEC on September 4, 2026, it reported raising $25,000,000 from 38 investors as part of an offering of up to $150,000,000. The first sale in the offering took place on August 20, 2026.
Science Seralutinib Seralutinib is an inhaled PDGFRα/β, CSF1R, and c‑KIT inhibitor designed to be delivered via dry powder inhaler for the potential treatment of pulmonary arterial hypertension (PAH)…
- Website
- gossamerbio.com
- Amount raised
- $25,000,000
- Offering size
- $150,000,000
- Investors so far
- 38
- First sale
- August 20, 2026
- Securities offered
- Options or warrants, Securities issuable on exercise or conversion
- Exemption claimed
- Rule 506(b)
- Industry
- Biotechnology
- Headquarters
- San Diego, California
- Incorporated
- Delaware
- Entity type
- Corporation
Filings
| Filed | Form | Raised | Offering size | Investors | Source |
|---|---|---|---|---|---|
| D (new notice) | $25,000,000 | $150,000,000 | 38 | SEC filing |
Figures come from the company's own filing with the SEC and are shown as reported. How to read a Form D.
Other health care raises in California
| Company | Location | Sector | Raised | Target | Filed |
|---|---|---|---|---|---|
| iPill Inc. | Rowland Heights, CA | Health Care | $1.3M | $1.5M | |
| White Eagle Sonic Technologies, Inc. | Santa Clara, CA | Health Care | $385K | $1M | |
| Digestive Disease Center, L.P. | Laguna Hills, CA | Health Care | — | $320K | |
| Lionheart Health, Inc. | Huntington Beach, CA | Health Care | $388K | $3M | |
| Anvion Bio, Inc. | San Diego, CA | Health Care | $100K | $1M | |
| Rakuten Medical, Inc. | San Diego, CA | Health Care | $9M | $9M |