Updated: May 19, 2026

Bryan Giraudo

GOSSGossamer Bio, Inc.SEC CIK: 0001740847
Estimated Net Worth
$6.48 Million89.1%vs Last Year
Last Updated: May 19, 2026 11:46 PM EST

Transaction Summary

Total Transactions41
Buy-Sell Ratio3.00
Buy Transactions12
Sell Transactions4

Transaction Volume

Total Volume-$5.26M
Net Volume$6.42M
Buy Volume$580.17K
Sell Volume-$5.84M

Trade Analysis

AVG Trade Size-$125.74K
Largest Trade$112.88K
Most Active MonthMay
Most Active Year2023

Trading Sentiment

OverallBullish
Recent TradeSelling
Last 90 Days-1 Trades
ConvictionMedium

Net Worth & Trading Activity Over Time

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Monthly Trading Pattern

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Past Insider Trading and Trends

Bryan Giraudo has an estimated net worth of $6.48 Million. This is based on reported shares across multiple companies, which include Gossamer Bio, Inc., and Protagonist Therapeutics, Inc.



2026 was Bryan Giraudo's most active year for acquiring shares with 17 total transactions. Bryan Giraudo's most active month to acquire stocks was the month of February. 2026 was Bryan Giraudo's most active year for disposing of shares, totalling 17 transactions. Bryan Giraudo's most active month to dispose stocks was the month of February. 2026 saw Bryan Giraudo paying a total of $238,560.00 for 3,812,708 shares, this is the most they've acquired in one year. In 2026 Bryan Giraudo cashed out on 3,055,881 shares for a total of $5,918,880.00, their largest year based on trade value.

Holdings & Transactions

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