GOSSAMER BIO INC

Ticker: GOSS CUSIP: 38341P102 Class: Common Stock

BALYASNY ASSET MANAGEMENT L.P.'s Holding History (CIK: 0001218710)

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

Q4 2025

Shares 1,516,691 Value ($000) $4,702 Avg Close $2.85 Range $2.08 - $3.87

Q3 2025

Shares 770,574 Value ($000) $2,027 Avg Close $2.20 Range $1.20 - $3.60

Q1 2025

Shares 289,265 Value ($000) $318 Avg Close $1.16 Range $0.82 - $1.55

Q1 2024

Shares 98,036 Value ($000) $116 Avg Close $1.10 Range $0.76 - $1.60

Q2 2023

Shares 14,690 Value ($000) $18 Avg Close $1.25 Range $0.91 - $1.62

Q3 2022

Shares 46,728 Value ($000) $560 Avg Close $12.41 Range $6.82 - $15.20

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,516,691	$4,702	$2.85	$2.08 - $3.87
Q3 2025	770,574	$2,027	$2.20	$1.20 - $3.60
Q1 2025	289,265	$318	$1.16	$0.82 - $1.55
Q1 2024	98,036	$116	$1.10	$0.76 - $1.60
Q2 2023	14,690	$18	$1.25	$0.91 - $1.62
Q3 2022	46,728	$560	$12.41	$6.82 - $15.20