Giraudo Bryan — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

Giraudo Bryan has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $5.92M.

Profile

Giraudo Bryan

Bryan Giraudo is the Chief Operating Officer and Chief Financial Officer at Gossamer Bio, Inc., a clinical-stage biopharmaceutical company focused on developing therapeutics for immunology, inflammation, and oncology. He has been involved in the company's operations and financial management, contributing to its growth and strategic direction.

RoleDirector
Notability30/100

Board memberships

Awards & honors

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-05-12PTGXProtagonist Therapeutics, IncS — Open-market sale5.1K$100.00$513K
2026-05-12PTGXProtagonist Therapeutics, IncS — Open-market sale6.0K$100.00$600K
2026-05-12PTGXProtagonist Therapeutics, IncS — Open-market sale12.0K$100.07$1.20M
2026-05-12PTGXProtagonist Therapeutics, IncS — Open-market sale36.0K$100.14$3.61M
2026-05-12PTGXProtagonist Therapeutics, IncM — Option exercise12.0K$6.98$84K
2026-05-12PTGXProtagonist Therapeutics, IncM — Option exercise24.0K$6.45$155K
2025-10-01GOSSGossamer Bio, Inc.A — Grant or award181.2K$0.00

Companies — Last 90 Days

Frequently Asked Questions

Who is Giraudo Bryan?

Bryan Giraudo is the Chief Operating Officer and Chief Financial Officer at Gossamer Bio, Inc., a clinical-stage biopharmaceutical company focused on developing therapeutics for immunology, inflammation, and oncology. He has been involved in the company's operations and financial management, contributing to its growth and strategic direction.…

How many SEC Form 4 filings has Giraudo Bryan submitted recently?

1 primary Form 4 filings in the last 90 days, covering 1 company.

Has Giraudo Bryan been buying or selling stock?

Recorded transactions: 0 open-market purchases () and 4 open-market sales ($5.92M) across all tracked filings.

Where can I see all of Giraudo Bryan's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

Learn More

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