GOSSAMER BIO INC

Ticker: GOSS CUSIP: 38341P102 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q4 2025

Shares 601,323 Value ($000) $1,864 Avg Close $2.85 Range $2.08 - $3.87

Q3 2025

Shares 641,715 Value ($000) $1,688 Avg Close $2.20 Range $1.20 - $3.60

Q1 2019

Shares 99,750 Value ($000) $2,162 Avg Close $20.85 Range $16.00 - $25.06

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	601,323	$1,864	$2.85	$2.08 - $3.87
Q3 2025	641,715	$1,688	$2.20	$1.20 - $3.60
Q1 2019	99,750	$2,162	$20.85	$16.00 - $25.06