Bryan Giraudo Insider Profile
25 Followers
Bryan Giraudo, COO/CFO at Gossamer Bio, holds 12.70K shares in Protagonist Therapeutics (Ticker: PTGX), holds 869.75K shares in Gossamer Bio (Ticker: GOSS).
Profitable Transactions
8 out of 16 Profitable Transactions
Average Return
+32.10%
Average return per transaction
Time Frame
Compare to
Insider Holdings
Insider Roles
Roles that Bryan Giraudo holds in companies
Most Profitable Insider Trade
Stock:
Rating:Informative Buy
Date:Dec 03, 2019 - Dec 03, 2020
Return:+354.10%
The most profitable trade made by Bryan Giraudo
Bryan Giraudo's Trading History
Gossamer Bio
Jan 05, 2026
COO/CFO
Uninformative Buy
―
$9.33M
Protagonist Therapeutics
May 11, 2026
Director
Uninformative Buy
238.56K
$1.88M
List of latest transactions for each holding click on a transaction to see Bryan Giraudo's performance on stock
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Bryan Giraudo insider profile FAQ
What is the percentage of profitable transactions made by Bryan Giraudo?
The percentage of profitable transactions made by Bryan Giraudo is 50%.
What is the average return per transaction made by Bryan Giraudo?
The average return per transaction made by Bryan Giraudo is 32.10%.
What stocks does Bryan Giraudo hold?
Bryan Giraudo holds: GOSS, PTGX stocks.
What was Bryan Giraudo’s latest transaction?
Bryan Giraudo latest transaction was an Uninformative Buy of $238.56K.
What was Bryan Giraudo's most profitable transaction?
Bryan Giraudo’s most profitable transaction was an Informative Buy of PTGX stock on December 3, 2019. The return on the trade was 354.10%.
What is Bryan Giraudo's role in Gossamer Bio?
Bryan Giraudo's role in Gossamer Bio is COO/CFO.
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