ALECTOR INC

Ticker: ALEC CUSIP: 014442107 Class: COM

BANK OF AMERICA CORP /DE/'s Holding History (CIK: 0000070858)

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

Q4 2025

Shares 134,506 Value ($000) $210 Avg Close $1.77 Range $1.09 - $3.40

Q3 2025

Shares 246,283 Value ($000) $729 Avg Close $2.20 Range $1.34 - $3.28

Q2 2025

Shares 343,909 Value ($000) $481 Avg Close $1.25 Range $0.87 - $1.69

Q1 2025

Shares 337,982 Value ($000) $416 Avg Close $1.63 Range $1.20 - $2.15

Q4 2024

Shares 318,648 Value ($000) $602 Avg Close $3.76 Range $1.68 - $6.14

Q3 2024

Shares 362,900 Value ($000) $1,691 Avg Close $5.36 Range $4.22 - $6.78

Q2 2024

Shares 359,385 Value ($000) $1,632 Avg Close $5.15 Range $4.11 - $6.25

Q1 2024

Shares 353,651 Value ($000) $2,129 Avg Close $6.54 Range $5.49 - $8.90

Q4 2023

Shares 440,315 Value ($000) $3,514 Avg Close $5.92 Range $3.66 - $8.76

Q3 2023

Shares 424,613 Value ($000) $2,751 Avg Close $6.47 Range $4.98 - $9.06

Q2 2023

Shares 355,165 Value ($000) $2,135 Avg Close $6.98 Range $5.65 - $8.04

Q1 2023

Shares 471,853 Value ($000) $2,921 Avg Close $8.13 Range $5.76 - $9.86

Q4 2022

Shares 424,320 Value ($000) $3,916 Avg Close $8.72 Range $6.84 - $9.76

Q3 2022

Shares 368,340 Value ($000) $3,484 Avg Close $10.81 Range $8.15 - $13.50

Q2 2022

Shares 229,977 Value ($000) $2,337 Avg Close $9.97 Range $7.50 - $14.63

Q1 2022

Shares 332,652 Value ($000) $4,740 Avg Close $15.82 Range $11.41 - $21.25

Q4 2021

Shares 411,008 Value ($000) $8,487 Avg Close $22.55 Range $18.61 - $27.00

Q3 2021

Shares 269,147 Value ($000) $6,142 Avg Close $28.01 Range $20.71 - $43.32

Q2 2021

Shares 127,775 Value ($000) $2,661 Avg Close $18.85 Range $15.04 - $23.42

Q1 2021

Shares 125,257 Value ($000) $2,522 Avg Close $17.93 Range $14.66 - $23.99

Q4 2020

Shares 90,767 Value ($000) $1,373 Avg Close $12.43 Range $9.12 - $17.31

Q3 2020

Shares 115,584 Value ($000) $1,218 Avg Close $16.17 Range $10.45 - $25.73

Q2 2020

Shares 30,542 Value ($000) $746 Avg Close $27.60 Range $21.26 - $34.89

Q1 2020

Shares 14,622 Value ($000) $352 Avg Close $25.49 Range $15.63 - $35.93

Q4 2019

Shares 27,325 Value ($000) $471 Avg Close $17.00 Range $13.71 - $21.03

Q3 2019

Shares 14,258 Value ($000) $205 Avg Close $18.05 Range $13.64 - $22.41

Q2 2019

Shares 7,830 Value ($000) $148 Avg Close $20.30 Range $15.78 - $27.00

Q1 2019

Shares 7,108 Value ($000) $133 Avg Close $18.92 Range $15.16 - $23.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	134,506	$210	$1.77	$1.09 - $3.40
Q3 2025	246,283	$729	$2.20	$1.34 - $3.28
Q2 2025	343,909	$481	$1.25	$0.87 - $1.69
Q1 2025	337,982	$416	$1.63	$1.20 - $2.15
Q4 2024	318,648	$602	$3.76	$1.68 - $6.14
Q3 2024	362,900	$1,691	$5.36	$4.22 - $6.78
Q2 2024	359,385	$1,632	$5.15	$4.11 - $6.25
Q1 2024	353,651	$2,129	$6.54	$5.49 - $8.90
Q4 2023	440,315	$3,514	$5.92	$3.66 - $8.76
Q3 2023	424,613	$2,751	$6.47	$4.98 - $9.06
Q2 2023	355,165	$2,135	$6.98	$5.65 - $8.04
Q1 2023	471,853	$2,921	$8.13	$5.76 - $9.86
Q4 2022	424,320	$3,916	$8.72	$6.84 - $9.76
Q3 2022	368,340	$3,484	$10.81	$8.15 - $13.50
Q2 2022	229,977	$2,337	$9.97	$7.50 - $14.63
Q1 2022	332,652	$4,740	$15.82	$11.41 - $21.25
Q4 2021	411,008	$8,487	$22.55	$18.61 - $27.00
Q3 2021	269,147	$6,142	$28.01	$20.71 - $43.32
Q2 2021	127,775	$2,661	$18.85	$15.04 - $23.42
Q1 2021	125,257	$2,522	$17.93	$14.66 - $23.99
Q4 2020	90,767	$1,373	$12.43	$9.12 - $17.31
Q3 2020	115,584	$1,218	$16.17	$10.45 - $25.73
Q2 2020	30,542	$746	$27.60	$21.26 - $34.89
Q1 2020	14,622	$352	$25.49	$15.63 - $35.93
Q4 2019	27,325	$471	$17.00	$13.71 - $21.03
Q3 2019	14,258	$205	$18.05	$13.64 - $22.41
Q2 2019	7,830	$148	$20.30	$15.78 - $27.00
Q1 2019	7,108	$133	$18.92	$15.16 - $23.84