GOSSAMER BIO INC

Ticker: GOSS CUSIP: 38341P102 Class: Common Stock

Mariner, LLC's Holding History (CIK: 0001373442)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 64,450 Value ($000) $200 Avg Close $2.85 Range $2.08 - $3.87

Q3 2025

Shares 22,469 Value ($000) $59 Avg Close $2.20 Range $1.20 - $3.60

Q3 2020

Shares 23,960 Value ($000) $297 Avg Close $13.26 Range $11.16 - $15.42

Q2 2020

Shares 23,560 Value ($000) $306 Avg Close $12.58 Range $9.46 - $16.79

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	64,450	$200	$2.85	$2.08 - $3.87
Q3 2025	22,469	$59	$2.20	$1.20 - $3.60
Q3 2020	23,960	$297	$13.26	$11.16 - $15.42
Q2 2020	23,560	$306	$12.58	$9.46 - $16.79