Companies / Gossamer Bio, Inc. / Activity
Activity — Gossamer Bio, Inc.
126 moves.
Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Jan 2, 2026 | Giraudo Bryan Executive | Grant | Common Stock | $0 | +116K +42.25% | 389,737 0.17% of shares | low |
| Jan 2, 2026 | Smith Robert Paul JR Executive | Grant | Common Stock | $0 | +94K +56.09% | 260,898 0.11% of shares | low |
| Jan 2, 2026 | Aranda Richard Executive | Grant | Common Stock | $0 | +94K +25.38% | 463,106 0.20% of shares | low |
| Jan 2, 2026 | Peterson Caryn Executive | Grant | Common Stock | $0 | +85K +48.33% | 259,333 0.11% of shares | low |
| Jan 2, 2026 | Christian Waage Executive | Grant | Common Stock | $0 | +85K +11.58% | 814,061 0.35% of shares | low |
| Jan 2, 2026 | Hasnain Faheem CEO | Grant | Common Stock | $0 | +280K +50.20% | 837,793 0.36% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Grant | Stock Option (Right to Buy) | — | +97K | 96,667 0.04% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Grant | Stock Option (Right to Buy) | — | +48K | 47,667 0.02% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Grant | Stock Option (Right to Buy) | — | +60K | 60,000 0.03% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Grant | Stock Option (Right to Buy) | — | +100K | 100,000 0.04% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Grant | Stock Option (Right to Buy) | — | +177K | 176,667 0.08% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Grant | Stock Option (Right to Buy) | — | +212K | 211,500 0.09% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Grant | Stock Option (Right to Buy) | — | +212K | 211,500 0.09% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Grant | Stock Option (Right to Buy) | — | +181K | 181,250 0.08% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Grant | Stock Option (Right to Buy) | — | +544K | 543,750 0.23% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Grant | Stock Option (Right to Buy) | — | +638K | 638,000 0.27% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Grant | Stock Option (Right to Buy) | — | +694K | 693,750 0.30% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Other | Stock Option (Right to Buy) | — | -97K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Other | Stock Option (Right to Buy) | — | -48K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Other | Stock Option (Right to Buy) | — | -60K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Other | Stock Option (Right to Buy) | — | -100K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Other | Stock Option (Right to Buy) | — | -177K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Other | Stock Option (Right to Buy) | — | -212K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Other | Stock Option (Right to Buy) | — | -212K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Other | Stock Option (Right to Buy) | — | -181K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Other | Stock Option (Right to Buy) | — | -544K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Other | Stock Option (Right to Buy) | — | -638K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Giraudo Bryan Executive | Other | Stock Option (Right to Buy) | — | -694K -100.00% | 0 0.00% of shares | low |
| Jan 2, 2026 | Giraudo Bryan Executive | Grant | Stock Option (Right to Buy) | — | +694K | 693,750 0.30% of shares | low |
| Mar 19, 2026 | Smith Robert Paul JR Executive | Grant | Stock Option (Right to Buy) | — | +572K | 572,000 0.24% of shares | low |
| Mar 19, 2026 | Smith Robert Paul JR Executive | Grant | Stock Option (Right to Buy) | — | +563K | 562,500 0.24% of shares | low |
| Mar 19, 2026 | Smith Robert Paul JR Executive | Other | Stock Option (Right to Buy) | — | -572K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Smith Robert Paul JR Executive | Other | Stock Option (Right to Buy) | — | -563K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Grant | Stock Option (Right to Buy) | — | +30K | 30,000 0.01% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Grant | Stock Option (Right to Buy) | — | +9K | 9,167 <0.01% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Grant | Stock Option (Right to Buy) | — | +23K | 22,784 <0.01% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Grant | Stock Option (Right to Buy) | — | +40K | 40,000 0.02% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Grant | Stock Option (Right to Buy) | — | +20K | 20,000 <0.01% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Grant | Stock Option (Right to Buy) | — | +127K | 126,667 0.05% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Grant | Stock Option (Right to Buy) | — | +158K | 157,500 0.07% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Grant | Stock Option (Right to Buy) | — | +158K | 157,500 0.07% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Grant | Stock Option (Right to Buy) | — | +163K | 162,500 0.07% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Grant | Stock Option (Right to Buy) | — | +488K | 487,500 0.21% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Grant | Stock Option (Right to Buy) | — | +572K | 572,000 0.24% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Grant | Stock Option (Right to Buy) | — | +563K | 562,500 0.24% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Other | Stock Option (Right to Buy) | — | -30K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Other | Stock Option (Right to Buy) | — | -9K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Other | Stock Option (Right to Buy) | — | -23K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Other | Stock Option (Right to Buy) | — | -40K -100.00% | 0 0.00% of shares | low |
| Mar 19, 2026 | Aranda Richard Executive | Other | Stock Option (Right to Buy) | — | -20K -100.00% | 0 0.00% of shares | low |