Richard Aranda Gossamer Bio, Inc. (GOSS) insider trading activity

GOSS Quotes by TradingView

Richard Aranda is Chief Medical Officer of Gossamer Bio, Inc.. Currently has a direct ownership of 369,356 shares of GOSS, which is worth approximately $1 Million. The most recent transaction as insider was on Oct 01, 2025, when has been sold 162,500 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) 369K
87.59% 3M change
87.59% 12M change
Total Value Held $1 Million

Richard Aranda Transaction History

Date Transaction Value Shares Traded Shares Held Form
Oct 01 2025
BUY
Grant, award, or other acquisition
-
162,500 Added 30.55%
369,356 Common Stock
Jun 24 2024
SELL
Open market or private sale
$1,259 $0.66 p/Share
1,908 Reduced 0.96%
196,891 Common Stock
Mar 18 2024
SELL
Open market or private sale
$5,343 $1.33 p/Share
4,018 Reduced 1.98%
198,799 Common Stock
Jun 22 2023
SELL
Open market or private sale
$2,340 $1.29 p/Share
1,814 Reduced 0.91%
197,574 Common Stock
Mar 16 2023
SELL
Open market or private sale
$8,319 $1.1 p/Share
7,563 Reduced 3.65%
199,388 Common Stock
Oct 24 2022
SELL
Open market or private sale
$57,417 $12.07 p/Share
4,757 Reduced 2.26%
205,430 Common Stock
Jun 22 2022
SELL
Open market or private sale
$12,233 $6.88 p/Share
1,778 Reduced 0.84%
209,897 Common Stock
Mar 16 2022
SELL
Open market or private sale
$51,982 $8.28 p/Share
6,278 Reduced 2.88%
211,675 Common Stock
Oct 25 2021
SELL
Open market or private sale
$29,118 $12.25 p/Share
2,377 Reduced 1.08%
217,432 Common Stock
Jun 21 2021
BUY
Grant, award, or other acquisition
-
15,000 Added 6.39%
219,809 Common Stock
RA

Richard Aranda

Chief Medical Officer
San Diego, CA

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