GOSSAMER BIO INC

Ticker: GOSS CUSIP: 38341P102 Class: Common Stock

Atom Investors LP's Holding History (CIK: 0001738902)

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

Q4 2025

Shares 205,639 Value ($000) $637 Avg Close $2.85 Range $2.08 - $3.87

Q3 2025

Shares 132,552 Value ($000) $349 Avg Close $2.20 Range $1.20 - $3.60

Q2 2025

Shares 730,357 Value ($000) $898 Avg Close $1.09 Range $0.76 - $1.44

Q1 2025

Shares 701,975 Value ($000) $772 Avg Close $1.16 Range $0.82 - $1.55

Q4 2022

Shares 12,808 Value ($000) $28 Avg Close $8.23 Range $1.57 - $13.68

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	205,639	$637	$2.85	$2.08 - $3.87
Q3 2025	132,552	$349	$2.20	$1.20 - $3.60
Q2 2025	730,357	$898	$1.09	$0.76 - $1.44
Q1 2025	701,975	$772	$1.16	$0.82 - $1.55
Q4 2022	12,808	$28	$8.23	$1.57 - $13.68