0000950170-24-111421.txt : 20241002 0000950170-24-111421.hdr.sgml : 20241002 20241002160506 ACCESSION NUMBER: 0000950170-24-111421 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20241001 FILED AS OF DATE: 20241002 DATE AS OF CHANGE: 20241002 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Rosenthal Arnon CENTRAL INDEX KEY: 0001757770 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38792 FILM NUMBER: 241347225 MAIL ADDRESS: STREET 1: C/O ALECTOR, INC. STREET 2: 151 OYSTER POINT BLVD., #300 CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Alector, Inc. CENTRAL INDEX KEY: 0001653087 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 822933343 FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 131 OYSTER POINT BLVD., SUITE 600 CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 BUSINESS PHONE: 415-231-5660 MAIL ADDRESS: STREET 1: 131 OYSTER POINT BLVD., SUITE 600 CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 FORMER COMPANY: FORMER CONFORMED NAME: Alector LLC DATE OF NAME CHANGE: 20150915 4 1 ownership.xml 4 X0508 4 2024-10-01 0001653087 Alector, Inc. ALEC 0001757770 Rosenthal Arnon C/O ALECTOR, INC. 131 OYSTER POINT BLVD., SUITE 600 SOUTH SAN FRANCISCO CA 94080 true true false false Chief Executive Officer false Common Stock 2024-10-01 4 A false 610500 0.00 A 2559246 D Common Stock 1972875 I See footnote Common Stock 652500 I See footnote Common Stock 652500 I See footnote Common Stock 652500 I See footnote The reported shares are represented by restricted stock units, or RSUs, which vest in 12 equal quarterly installments beginning on December 1, 2024. The reported securities are held directly by The Rosenthal Family Revocable Trust Dated November 4, 1994, as restated on June 9, 1999, for which the Reporting Person serves as trustee. The reported securities are held directly by the Adi Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee. The reported securities are held directly by the Noam Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee. The reported securities are held directly by the Shani Rosenthal 2007 Trust dated March 27, 2007, for which the Reporting Person serves as trustee. /s/ Marc Grasso, by power of attorney 2024-10-02