Bryan Giraudo Gossamer Bio, Inc. (GOSS) insider trading activity

GOSS Quotes by TradingView

Bryan Giraudo is COO/CFO of Gossamer Bio, Inc.. Currently has a direct ownership of 389,737 shares of GOSS, which is worth approximately $1.06 Million. The most recent transaction as insider was on Jan 02, 2026, when has been sold 115,750 shares (Common Stock) at a price of $0.0 per share, resulting in proceeds of $0. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 390K
42.25% 3M change
320.26% 12M change
Total Value Held $1.06 Million

Bryan Giraudo Transaction History

Date Transaction Value Shares Traded Shares Held Form
Jan 02 2026
BUY
Grant, award, or other acquisition
-
115,750 Added 22.9%
389,737 Common Stock
Oct 01 2025
BUY
Grant, award, or other acquisition
-
181,250 Added 39.81%
273,987 Common Stock
Mar 27 2024
SELL
Open market or private sale
$7,458 $1.16 p/Share
6,430 Reduced 6.48%
92,737 Common Stock
Mar 23 2022
SELL
Open market or private sale
$95,533 $8.91 p/Share
10,722 Reduced 9.76%
99,167 Common Stock
Mar 23 2021
SELL
Open market or private sale
$52,045 $9.48 p/Share
5,490 Reduced 4.76%
109,889 Common Stock
Feb 25 2021
BUY
Grant, award, or other acquisition
-
45,000 Added 28.06%
115,379 Common Stock

Also insider at

PTGX
Protagonist Therapeutics, Inc Healthcare
Director
BG

Bryan Giraudo

COO/CFO
San Diego, CA

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