GOSSAMER BIO INC

Ticker: GOSS CUSIP: 38341P102 Class: Common Stock

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q1 2023

Shares 119,362 Value ($000) $150 Avg Close $1.91 Range $0.96 - $3.06

Q3 2022

Shares 1,824 Value ($000) $22 Avg Close $12.41 Range $6.82 - $15.20

Q2 2022

Shares 3,901 Value ($000) $33 Avg Close $7.75 Range $5.64 - $10.21

Q4 2021

Shares 7,282 Value ($000) $82 Avg Close $11.88 Range $9.87 - $14.30

Q1 2021

Shares 11,273 Value ($000) $104 Avg Close $10.08 Range $8.41 - $11.91

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2023	119,362	$150	$1.91	$0.96 - $3.06
Q3 2022	1,824	$22	$12.41	$6.82 - $15.20
Q2 2022	3,901	$33	$7.75	$5.64 - $10.21
Q4 2021	7,282	$82	$11.88	$9.87 - $14.30
Q1 2021	11,273	$104	$10.08	$8.41 - $11.91