GOSSAMER BIO INC

Ticker: GOSS CUSIP: 38341P102 Class: Common Stock

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q3 2025
Shares 74,531 Value ($000) $196 Avg Close $2.20 Range $1.20 - $3.60
Q2 2025
Shares 233,170 Value ($000) $287 Avg Close $1.09 Range $0.76 - $1.44
Q1 2025
Shares 207,744 Value ($000) $229 Avg Close $1.16 Range $0.82 - $1.55
Q4 2024
Shares 74,644 Value ($000) $68 Avg Close $0.86 Range $0.66 - $1.10
Q3 2024
Shares 11,064 Value ($000) $11 Avg Close $0.96 Range $0.77 - $1.37
Q4 2022
Shares 58,938 Value ($000) $128 Avg Close $8.23 Range $1.57 - $13.68
Q3 2022
Shares 131,219 Value ($000) $1,572 Avg Close $12.41 Range $6.82 - $15.20
Q2 2022
Shares 134,204 Value ($000) $1,123 Avg Close $7.75 Range $5.64 - $10.21
Q1 2022
Shares 7,540 Value ($000) $65 Avg Close $9.64 Range $8.06 - $12.86
Q4 2021
Shares 11,799 Value ($000) $133 Avg Close $11.88 Range $9.87 - $14.30
Q3 2021
Shares 14,010 Value ($000) $176 Avg Close $9.21 Range $7.04 - $14.10
Q2 2021
Shares 100 Value ($000) $1 Avg Close $8.67 Range $7.63 - $9.82
Q4 2020
Shares 5,088 Value ($000) $49 Avg Close $9.85 Range $7.92 - $13.65
Q3 2020
Shares 188 Value ($000) $2 Avg Close $13.26 Range $11.16 - $15.42
Q2 2020
Shares 1,188 Value ($000) $15 Avg Close $12.58 Range $9.46 - $16.79
Q1 2020
Shares 61,395 Value ($000) $623 Avg Close $13.06 Range $7.52 - $15.76