ALECTOR INC

Ticker: ALEC CUSIP: 014442107 Class: COM

Vanguard Personalized Indexing Management, LLC's Holding History (CIK: 0001767306)

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

Q4 2025

Shares 53,056 Value ($000) $83 Avg Close $1.77 Range $1.09 - $3.40

Q3 2025

Shares 58,320 Value ($000) $173 Avg Close $2.20 Range $1.34 - $3.28

Q2 2025

Shares 52,095 Value ($000) $73 Avg Close $1.25 Range $0.87 - $1.69

Q1 2025

Shares 34,925 Value ($000) $43 Avg Close $1.63 Range $1.20 - $2.15

Q4 2024

Shares 13,106 Value ($000) $25 Avg Close $3.76 Range $1.68 - $6.14

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	53,056	$83	$1.77	$1.09 - $3.40
Q3 2025	58,320	$173	$2.20	$1.34 - $3.28
Q2 2025	52,095	$73	$1.25	$0.87 - $1.69
Q1 2025	34,925	$43	$1.63	$1.20 - $2.15
Q4 2024	13,106	$25	$3.76	$1.68 - $6.14