CIK 0001728117 · Non-accelerated filer<br>Smaller reporting company
Gossamer Bio, Inc.
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- GOSS
- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 475461709
- Phone
- (858) 684-1300
- Business address
- 3115 MERRYFIELD ROW, SUITE 120, SAN DIEGO, CA, 92121
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-01-02 | Giraudo Bryan COO/CFO | Grant or award | +115,750 | 389,737 | ||
| 2026-01-02 | Giraudo Bryan COO/CFO | Grant or award · Stock Option (Right to Buy) | +693,750 | 693,750 | ||
| 2026-01-02 | Christian Waage EVP, Tech Ops and Admin | Grant or award | +84,500 | 814,061 | ||
| 2026-01-02 | Christian Waage EVP, Tech Ops and Admin | Grant or award · Stock Option (Right to Buy) | +506,250 | 506,250 | ||
| 2026-01-02 | Hasnain Faheem President & CEO | Grant or award | +280,000 | 837,793 | ||
| 2026-01-02 | Hasnain Faheem President & CEO | Grant or award · Stock Option (Right to Buy) | +1,680,000 | 1,680,000 | ||
| 2025-10-01 | Smith Robert Paul JR Chief Commercial Officer | Grant or award | +162,500 | 162,500 | ||
| 2025-10-01 | Aranda Richard Chief Medical Officer | Grant or award | +162,500 | 369,356 | ||
| 2025-10-01 | Peterson Caryn EVP, Regulatory Affairs | Grant or award | +125,000 | 174,833 | ||
| 2025-10-01 | Giraudo Bryan COO/CFO | Grant or award | +181,250 | 273,987 | ||
| 2025-10-01 | Christian Waage EVP, Tech Ops and Admin | Grant or award | +125,000 | 710,934 | ||
| 2025-10-01 | Hasnain Faheem President & CEO | Grant or award | +437,500 | 557,793 | ||
| 2025-08-19 | Milligan Sandra Director | Purchase | +26,050 | $1.92 | $50K | 58,050 |
| 2025-06-25 | Daniel Thomas O Director | Grant or award · Stock Option (Right to Buy) | +115,000 | 115,000 | ||
| 2025-06-25 | Nathan Steven D Director | Grant or award · Stock Option (Right to Buy) | +115,000 | 115,000 | ||
| 2025-06-25 | Cox Russell J. Director | Grant or award · Stock Option (Right to Buy) | +115,000 | 115,000 | ||
| 2025-06-25 | Quisel John D Director | Grant or award · Stock Option (Right to Buy) | +115,000 | 115,000 | ||
| 2025-06-25 | Milligan Sandra Director | Grant or award · Stock Option (Right to Buy) | +115,000 | 115,000 | ||
| 2025-06-25 | Drynan Skye Director | Grant or award · Stock Option (Right to Buy) | +115,000 | 115,000 | ||
| 2025-03-04 | Peterson Caryn EVP, Regulatory Affairs | Grant or award · Stock Option (Right to Buy) | +440,000 | 440,000 |
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