GOSSAMER BIO INC

Ticker: GOSS CUSIP: 38341P102 Class: Common Stock

ADAGE CAPITAL PARTNERS GP, L.L.C.'s Holding History (CIK: 0001165408)

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

Q3 2025

Shares 726,800 Value ($000) $1,911 Avg Close $2.20 Range $1.20 - $3.60

Q3 2022

Shares 55,000 Value ($000) $659 Avg Close $12.41 Range $6.82 - $15.20

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	726,800	$1,911	$2.20	$1.20 - $3.60
Q3 2022	55,000	$659	$12.41	$6.82 - $15.20