There have been no open-market insider trades at Gossamer Bio, Inc. in the last 12 months.
Big money check: 170 institutions held GOSS as of Q2 2026, and funds were split between buying and selling. Quarter by quarter: No open-market insider buying or selling in the last full quarter. Insiders bought in 1 of the last 7 full quarters.
| Filed | Insider | Role | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|---|
| Aug 20, 2025 | Milligan Sandra | Director | Buy | 26,050 | $1.92 | $50K | SEC |
| Jun 25, 2024 | Aranda Richard | Executive Officer | Sell | 1,908 | $0.66 | $1K | SEC |
| Jun 24, 2024 | Hasnain Faheem | CEO | Buy | 372,000 | $0.67 | $249K | SEC |
| Jun 20, 2024 | Giraudo Bryan | CFO | Buy | 100,000 | $0.59 | $59K | SEC |
| Jun 20, 2024 | Smith Robert Paul JR | Executive Officer | Buy | 25,000 | $0.60 | $15K | SEC |
| Mar 28, 2024 | Christian Waage | Executive Officer | Sell | 6,430 | $1.16 | $7K | SEC |
| Mar 28, 2024 | Giraudo Bryan | CFO | Sell | 6,430 | $1.16 | $7K | SEC |
| Mar 28, 2024 | Hasnain Faheem | CEO | Sell | 23,172 | $1.16 | $27K | SEC |
| Mar 19, 2024 | Aranda Richard | Executive Officer | Sell | 4,018 | $1.33 | $5K | SEC |
| Mar 19, 2024 | Peterson Caryn | Executive Officer | Sell | 4,018 | $1.33 | $5K | SEC |
| Nov 17, 2023 | Milligan Sandra | Director | Buy | 32,000 | $0.79 | $25K | SEC |
| Nov 14, 2023 | Giraudo Bryan | CFO | Buy | 200,000 | $0.56 | $112K | SEC |
| Jun 26, 2023 | Aranda Richard | Executive Officer | Sell | 1,814 | $1.29 | $2K | SEC |
| Apr 5, 2023 | Giraudo Bryan | CFO | Buy | 55,000 | $1.02 | $56K | SEC |
| Mar 22, 2023 | Hasnain Faheem | CEO | Buy | 440,500 | $1.14 | $502K | SEC |
There were no open-market insider trades in GOSS in the last 12 months. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
170 investment managers reported holding GOSS in SEC Form 13F filings for Q2 2026.
No congressional trades in GOSS were reported in the past two years. The full list is free on CapitalSnitch.
Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).