ALECTOR INC

Ticker: ALEC CUSIP: 014442107 Class: COM

FIRST TRUST ADVISORS LP's Holding History (CIK: 0001125816)

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

Q1 2022

Shares 117,381 Value ($000) $1,673 Avg Close $15.82 Range $11.41 - $21.25

Q4 2021

Shares 143,217 Value ($000) $2,957 Avg Close $22.55 Range $18.61 - $27.00

Q2 2021

Shares 58,304 Value ($000) $1,214 Avg Close $18.85 Range $15.04 - $23.42

Q3 2020

Shares 18,561 Value ($000) $196 Avg Close $16.17 Range $10.45 - $25.73

Q2 2020

Shares 144,845 Value ($000) $3,540 Avg Close $27.60 Range $21.26 - $34.89

Q1 2020

Shares 89,655 Value ($000) $2,163 Avg Close $25.49 Range $15.63 - $35.93

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2022	117,381	$1,673	$15.82	$11.41 - $21.25
Q4 2021	143,217	$2,957	$22.55	$18.61 - $27.00
Q2 2021	58,304	$1,214	$18.85	$15.04 - $23.42
Q3 2020	18,561	$196	$16.17	$10.45 - $25.73
Q2 2020	144,845	$3,540	$27.60	$21.26 - $34.89
Q1 2020	89,655	$2,163	$25.49	$15.63 - $35.93