GOSSAMER BIO INC

Ticker: GOSS CUSIP: 38341P102 Class: Common Stock

Bank of New York Mellon Corp's Holding History (CIK: 0001390777)

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

Q4 2025

Shares 447,901 Value ($000) $1,388 Avg Close $2.85 Range $2.08 - $3.87

Q3 2025

Shares 448,211 Value ($000) $1,179 Avg Close $2.20 Range $1.20 - $3.60

Q2 2025

Shares 386,708 Value ($000) $476 Avg Close $1.09 Range $0.76 - $1.44

Q1 2025

Shares 20,219 Value ($000) $22 Avg Close $1.16 Range $0.82 - $1.55

Q4 2024

Shares 20,220 Value ($000) $18 Avg Close $0.86 Range $0.66 - $1.10

Q3 2024

Shares 20,220 Value ($000) $20 Avg Close $0.96 Range $0.77 - $1.37

Q2 2024

Shares 20,218 Value ($000) $18 Avg Close $0.75 Range $0.50 - $1.28

Q1 2024

Shares 20,218 Value ($000) $24 Avg Close $1.10 Range $0.76 - $1.60

Q4 2023

Shares 91,246 Value ($000) $83 Avg Close $0.74 Range $0.45 - $1.13

Q3 2023

Shares 91,246 Value ($000) $76 Avg Close $1.15 Range $0.76 - $1.88

Q2 2023

Shares 32,818 Value ($000) $39 Avg Close $1.25 Range $0.91 - $1.62

Q1 2023

Shares 217,054 Value ($000) $273 Avg Close $1.91 Range $0.96 - $3.06

Q4 2022

Shares 220,836 Value ($000) $479 Avg Close $8.23 Range $1.57 - $13.68

Q3 2022

Shares 267,340 Value ($000) $3,203 Avg Close $12.41 Range $6.82 - $15.20

Q2 2022

Shares 192,890 Value ($000) $1,615 Avg Close $7.75 Range $5.64 - $10.21

Q1 2022

Shares 228,023 Value ($000) $1,979 Avg Close $9.64 Range $8.06 - $12.86

Q4 2021

Shares 228,196 Value ($000) $2,581 Avg Close $11.88 Range $9.87 - $14.30

Q3 2021

Shares 228,202 Value ($000) $2,868 Avg Close $9.21 Range $7.04 - $14.10

Q2 2021

Shares 210,538 Value ($000) $1,709 Avg Close $8.67 Range $7.63 - $9.82

Q1 2021

Shares 234,275 Value ($000) $2,167 Avg Close $10.08 Range $8.41 - $11.91

Q4 2020

Shares 236,833 Value ($000) $2,291 Avg Close $9.85 Range $7.92 - $13.65

Q3 2020

Shares 226,183 Value ($000) $2,807 Avg Close $13.26 Range $11.16 - $15.42

Q2 2020

Shares 221,292 Value ($000) $2,877 Avg Close $12.58 Range $9.46 - $16.79

Q1 2020

Shares 175,381 Value ($000) $1,780 Avg Close $13.06 Range $7.52 - $15.76

Q4 2019

Shares 178,345 Value ($000) $2,787 Avg Close $20.14 Range $14.16 - $27.15

Q3 2019

Shares 162,078 Value ($000) $2,721 Avg Close $19.88 Range $15.97 - $22.93

Q2 2019

Shares 105,292 Value ($000) $2,335 Avg Close $19.13 Range $15.59 - $23.17

Q1 2019

Shares 50,814 Value ($000) $1,101 Avg Close $20.85 Range $16.00 - $25.06

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	447,901	$1,388	$2.85	$2.08 - $3.87
Q3 2025	448,211	$1,179	$2.20	$1.20 - $3.60
Q2 2025	386,708	$476	$1.09	$0.76 - $1.44
Q1 2025	20,219	$22	$1.16	$0.82 - $1.55
Q4 2024	20,220	$18	$0.86	$0.66 - $1.10
Q3 2024	20,220	$20	$0.96	$0.77 - $1.37
Q2 2024	20,218	$18	$0.75	$0.50 - $1.28
Q1 2024	20,218	$24	$1.10	$0.76 - $1.60
Q4 2023	91,246	$83	$0.74	$0.45 - $1.13
Q3 2023	91,246	$76	$1.15	$0.76 - $1.88
Q2 2023	32,818	$39	$1.25	$0.91 - $1.62
Q1 2023	217,054	$273	$1.91	$0.96 - $3.06
Q4 2022	220,836	$479	$8.23	$1.57 - $13.68
Q3 2022	267,340	$3,203	$12.41	$6.82 - $15.20
Q2 2022	192,890	$1,615	$7.75	$5.64 - $10.21
Q1 2022	228,023	$1,979	$9.64	$8.06 - $12.86
Q4 2021	228,196	$2,581	$11.88	$9.87 - $14.30
Q3 2021	228,202	$2,868	$9.21	$7.04 - $14.10
Q2 2021	210,538	$1,709	$8.67	$7.63 - $9.82
Q1 2021	234,275	$2,167	$10.08	$8.41 - $11.91
Q4 2020	236,833	$2,291	$9.85	$7.92 - $13.65
Q3 2020	226,183	$2,807	$13.26	$11.16 - $15.42
Q2 2020	221,292	$2,877	$12.58	$9.46 - $16.79
Q1 2020	175,381	$1,780	$13.06	$7.52 - $15.76
Q4 2019	178,345	$2,787	$20.14	$14.16 - $27.15
Q3 2019	162,078	$2,721	$19.88	$15.97 - $22.93
Q2 2019	105,292	$2,335	$19.13	$15.59 - $23.17
Q1 2019	50,814	$1,101	$20.85	$16.00 - $25.06