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Changes in Ownership

Gossamer Bio, Inc. Filed Acc 0001740847-26-000004

Options or other derivatives

  • COO/CFO acquired 2,960,751 shares (grant or award)
  • COO/CFO returned 2,960,751 shares (to the company)

From the SEC's structured data for this filing

Trades in this filing

Insider Date Transaction Shares Price Value Owned after D/I
Derivatives
Giraudo Bryan COO/CFO 2026-03-19 Returned to the company · Stock Option (Right to Buy) −693,750 0 D
Giraudo Bryan COO/CFO 2026-03-19 Returned to the company · Stock Option (Right to Buy) −638,000 0 D
Giraudo Bryan COO/CFO 2026-03-19 Returned to the company · Stock Option (Right to Buy) −543,750 0 D
Giraudo Bryan COO/CFO 2026-03-19 Returned to the company · Stock Option (Right to Buy) −181,250 0 D
Giraudo Bryan COO/CFO 2026-03-19 Returned to the company · Stock Option (Right to Buy) −211,500 0 D
Giraudo Bryan COO/CFO 2026-03-19 Returned to the company · Stock Option (Right to Buy) −211,500 0 D
Giraudo Bryan COO/CFO 2026-03-19 Returned to the company · Stock Option (Right to Buy) −176,667 0 D
Giraudo Bryan COO/CFO 2026-03-19 Returned to the company · Stock Option (Right to Buy) −100,000 0 D
Giraudo Bryan COO/CFO 2026-03-19 Returned to the company · Stock Option (Right to Buy) −60,000 0 D
Giraudo Bryan COO/CFO 2026-03-19 Returned to the company · Stock Option (Right to Buy) −47,667 0 D
Giraudo Bryan COO/CFO 2026-03-19 Returned to the company · Stock Option (Right to Buy) −96,667 0 D
Giraudo Bryan COO/CFO 2026-03-19 Grant or award · Stock Option (Right to Buy) +693,750 693,750 D
Giraudo Bryan COO/CFO 2026-03-19 Grant or award · Stock Option (Right to Buy) +638,000 638,000 D
Giraudo Bryan COO/CFO 2026-03-19 Grant or award · Stock Option (Right to Buy) +543,750 543,750 D
Giraudo Bryan COO/CFO 2026-03-19 Grant or award · Stock Option (Right to Buy) +181,250 181,250 D
Giraudo Bryan COO/CFO 2026-03-19 Grant or award · Stock Option (Right to Buy) +211,500 211,500 D
Giraudo Bryan COO/CFO 2026-03-19 Grant or award · Stock Option (Right to Buy) +211,500 211,500 D
Giraudo Bryan COO/CFO 2026-03-19 Grant or award · Stock Option (Right to Buy) +176,667 176,667 D
Giraudo Bryan COO/CFO 2026-03-19 Grant or award · Stock Option (Right to Buy) +100,000 100,000 D
Giraudo Bryan COO/CFO 2026-03-19 Grant or award · Stock Option (Right to Buy) +60,000 60,000 D
Giraudo Bryan COO/CFO 2026-03-19 Grant or award · Stock Option (Right to Buy) +47,667 47,667 D
Giraudo Bryan COO/CFO 2026-03-19 Grant or award · Stock Option (Right to Buy) +96,667 96,667 D
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