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 273,987 shares of GOSS, which is worth approximately $630,170. The most recent transaction as insider was on Oct 01, 2025, when has been sold 181,250 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) 274K
195.45% 3M change
195.45% 12M change
Total Value Held $630,170

Bryan Giraudo Transaction History

Date Transaction Value Shares Traded Shares Held Form
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

Track Institutional and Insider Activities on GOSS

Follow Gossamer Bio, Inc. and customize your updates to receive the information that matters most to you.

Institutional Portfolio Updates

Receive a notification when an Institution or Guru buys or sells GOSS shares.

Notify only if

Insider Trading

Get notified when an Gossamer Bio, Inc. insider buys or sells GOSS shares.

Notify only if

News

Receive news related to Gossamer Bio, Inc.

Choose your preferred platform and Sign Up 👇 Telegram Email
Track Activities on GOSS