Grace Wong-Sarad - 02 Sep 2026 Form 4 Insider Report for Alector, Inc. (ALEC)

Reporting relationship: Principal Accounting Officer
Issuer ticker: ALEC
Reported as of: 02 Sep 2026
Net transaction value: -$24,666
SEC form: 4
Accepted by SEC: 04 Sep 2026, 17:45:06 UTC
Prior SEC filing: 09 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/Grace Wong-Sarad

Key filing fact

Grace Wong-Sarad filed Form 4 for Alector, Inc. (ALEC) on 04 Sep 2026.

Key facts

This page summarizes Grace Wong-Sarad's Form 4 filing for Alector, Inc. (ALEC).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 04 Sep 2026, 17:45.

Change

Previous filing in this sequence was filed on 09 Jul 2026.
Current net transaction value: -$24,666.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002074667 Primary reporting owner

Wong-Sarad Grace

Relationship: Principal Accounting Officer
Address: C/O ALECTOR, INC., 131 OYSTER POINT BLVD, SUITE 600, SOUTH SAN FRANCISCO
Signature: /s/Grace Wong-Sarad
Signature date: 04 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ALEC transaction

Common Stock

Sale

Transaction value: $1,804
Shares: -656
Change %: -0.57%
Price: $2.75
Shares after: 114,805
Date: 02 Sep 2026
Ownership: Direct
Footnotes: F1

ALEC transaction

Common Stock

Sale

Transaction value: $13,767
Shares: -5,165
Change %: -4.5%
Price: $2.67
Shares after: 109,640
Date: 03 Sep 2026
Ownership: Direct
Footnotes: F2, F3

ALEC transaction

Common Stock

Sale

Transaction value: $9,094
Shares: -3,625
Change %: -3.3%
Price: $2.51
Shares after: 106,015
Date: 04 Sep 2026
Ownership: Direct
Footnotes: F1, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on September 5, 2025.

Footnote F2

The reported shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units, or RSUs.

Footnote F3

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.49 to $2.75. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff, the issuer, or any security holder of the issuer upon request.

Footnote F4

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.495 to $2.52. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff, the issuer, or any security holder of the issuer upon request.