Alector, Inc. — Director's Dealing 2025

Jun 12, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alector, Inc. (ALEC)
CIK: 0001653087
Period of Report: 2025-06-11

Reporting Person: Hammond Paula (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-06-11	Common Stock	A	28700	$0.00	Acquired	88909	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-06-11	Stock Option (right to buy)	$1.63	A	9450	Acquired	2035-06-10	Common Stock (9450)	Direct

Footnotes

F1: The reported shares are represented by restricted stock units, or RSUs, which vest on the earlier of (i) June 11, 2026 or (ii) the date of the Issuer's next annual meeting of stockholders.

F2: The shares subject to the option vest in 12 equal monthly installments beginning on July 11, 2025, provided that the shares subject to the option will vest in full on the earlier of the one-year anniversary of the date of grant or the date of the Issuer's next annual meeting of stockholders.