ALECTOR INC

Ticker: ALEC CUSIP: 014442107 Class: COM

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

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

Q4 2025

Shares 217,862 Value ($000) $340 Avg Close $1.77 Range $1.09 - $3.40

Q3 2025

Shares 224,484 Value ($000) $664 Avg Close $2.20 Range $1.34 - $3.28

Q2 2025

Shares 268,872 Value ($000) $376 Avg Close $1.25 Range $0.87 - $1.69

Q1 2025

Shares 249,494 Value ($000) $307 Avg Close $1.63 Range $1.20 - $2.15

Q4 2024

Shares 230,729 Value ($000) $436 Avg Close $3.76 Range $1.68 - $6.14

Q3 2024

Shares 226,109 Value ($000) $1,054 Avg Close $5.36 Range $4.22 - $6.78

Q2 2024

Shares 279,938 Value ($000) $1,271 Avg Close $5.15 Range $4.11 - $6.25

Q1 2024

Shares 230,313 Value ($000) $1,386 Avg Close $6.54 Range $5.49 - $8.90

Q4 2023

Shares 209,052 Value ($000) $1,668 Avg Close $5.92 Range $3.66 - $8.76

Q3 2023

Shares 231,995 Value ($000) $1,503 Avg Close $6.47 Range $4.98 - $9.06

Q2 2023

Shares 234,771 Value ($000) $1,411 Avg Close $6.98 Range $5.65 - $8.04

Q1 2023

Shares 209,087 Value ($000) $1,294 Avg Close $8.13 Range $5.76 - $9.86

Q4 2022

Shares 211,778 Value ($000) $1,955 Avg Close $8.72 Range $6.84 - $9.76

Q3 2022

Shares 223,551 Value ($000) $2,115 Avg Close $10.81 Range $8.15 - $13.50

Q2 2022

Shares 204,218 Value ($000) $2,075 Avg Close $9.97 Range $7.50 - $14.63

Q1 2022

Shares 206,696 Value ($000) $2,945 Avg Close $15.82 Range $11.41 - $21.25

Q4 2021

Shares 204,713 Value ($000) $4,227 Avg Close $22.55 Range $18.61 - $27.00

Q3 2021

Shares 184,221 Value ($000) $4,204 Avg Close $28.01 Range $20.71 - $43.32

Q2 2021

Shares 168,346 Value ($000) $3,507 Avg Close $18.85 Range $15.04 - $23.42

Q1 2021

Shares 182,311 Value ($000) $3,672 Avg Close $17.93 Range $14.66 - $23.99

Q4 2020

Shares 188,152 Value ($000) $2,847 Avg Close $12.43 Range $9.12 - $17.31

Q3 2020

Shares 691,588 Value ($000) $7,285 Avg Close $16.17 Range $10.45 - $25.73

Q2 2020

Shares 980,707 Value ($000) $23,968 Avg Close $27.60 Range $21.26 - $34.89

Q1 2020

Shares 327,067 Value ($000) $7,892 Avg Close $25.49 Range $15.63 - $35.93

Q4 2019

Shares 107,011 Value ($000) $1,844 Avg Close $17.00 Range $13.71 - $21.03

Q3 2019

Shares 86,931 Value ($000) $1,253 Avg Close $18.05 Range $13.64 - $22.41

Q2 2019

Shares 32,156 Value ($000) $611 Avg Close $20.30 Range $15.78 - $27.00

Q1 2019

Shares 12,854 Value ($000) $241 Avg Close $18.92 Range $15.16 - $23.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	217,862	$340	$1.77	$1.09 - $3.40
Q3 2025	224,484	$664	$2.20	$1.34 - $3.28
Q2 2025	268,872	$376	$1.25	$0.87 - $1.69
Q1 2025	249,494	$307	$1.63	$1.20 - $2.15
Q4 2024	230,729	$436	$3.76	$1.68 - $6.14
Q3 2024	226,109	$1,054	$5.36	$4.22 - $6.78
Q2 2024	279,938	$1,271	$5.15	$4.11 - $6.25
Q1 2024	230,313	$1,386	$6.54	$5.49 - $8.90
Q4 2023	209,052	$1,668	$5.92	$3.66 - $8.76
Q3 2023	231,995	$1,503	$6.47	$4.98 - $9.06
Q2 2023	234,771	$1,411	$6.98	$5.65 - $8.04
Q1 2023	209,087	$1,294	$8.13	$5.76 - $9.86
Q4 2022	211,778	$1,955	$8.72	$6.84 - $9.76
Q3 2022	223,551	$2,115	$10.81	$8.15 - $13.50
Q2 2022	204,218	$2,075	$9.97	$7.50 - $14.63
Q1 2022	206,696	$2,945	$15.82	$11.41 - $21.25
Q4 2021	204,713	$4,227	$22.55	$18.61 - $27.00
Q3 2021	184,221	$4,204	$28.01	$20.71 - $43.32
Q2 2021	168,346	$3,507	$18.85	$15.04 - $23.42
Q1 2021	182,311	$3,672	$17.93	$14.66 - $23.99
Q4 2020	188,152	$2,847	$12.43	$9.12 - $17.31
Q3 2020	691,588	$7,285	$16.17	$10.45 - $25.73
Q2 2020	980,707	$23,968	$27.60	$21.26 - $34.89
Q1 2020	327,067	$7,892	$25.49	$15.63 - $35.93
Q4 2019	107,011	$1,844	$17.00	$13.71 - $21.03
Q3 2019	86,931	$1,253	$18.05	$13.64 - $22.41
Q2 2019	32,156	$611	$20.30	$15.78 - $27.00
Q1 2019	12,854	$241	$18.92	$15.16 - $23.84