ALECTOR INC

Ticker: ALEC CUSIP: 014442107 Class: COM

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q4 2025
Shares 82,017 Value ($000) $128 Avg Close $1.77 Range $1.09 - $3.40
Q3 2025
Shares 100,944 Value ($000) $0 Avg Close $2.20 Range $1.34 - $3.28
Q3 2024
Shares 46,344 Value ($000) $0 Avg Close $5.36 Range $4.22 - $6.78
Q2 2024
Shares 23,431 Value ($000) $0 Avg Close $5.15 Range $4.11 - $6.25
Q1 2024
Shares 29,132 Value ($000) $0 Avg Close $6.54 Range $5.49 - $8.90
Q3 2023
Shares 444 Value ($000) $0 Avg Close $6.47 Range $4.98 - $9.06
Q4 2022
Shares 5,726 Value ($000) $0 Avg Close $8.72 Range $6.84 - $9.76
Q2 2022
Shares 1,901 Value ($000) $19 Avg Close $9.97 Range $7.50 - $14.63
Q1 2022
Shares 12,128 Value ($000) $172 Avg Close $15.82 Range $11.41 - $21.25
Q4 2021
Shares 7,943 Value ($000) $164 Avg Close $22.55 Range $18.61 - $27.00
Q3 2021
Shares 13,521 Value ($000) $303 Avg Close $28.01 Range $20.71 - $43.32
Q2 2021
Shares 13,821 Value ($000) $287 Avg Close $18.85 Range $15.04 - $23.42
Q1 2021
Shares 3,624 Value ($000) $72 Avg Close $17.93 Range $14.66 - $23.99
Q4 2020
Shares 3,160 Value ($000) $47 Avg Close $12.43 Range $9.12 - $17.31
Q3 2020
Shares 13,613 Value ($000) $143 Avg Close $16.17 Range $10.45 - $25.73
Q2 2020
Shares 319 Value ($000) $7 Avg Close $27.60 Range $21.26 - $34.89
Q1 2020
Shares 990 Value ($000) $23 Avg Close $25.49 Range $15.63 - $35.93