Alector officer plans sale of 656 shares

An Alector, Inc. officer filed a Rule 144 notice to sell 656 shares and disclosed 3,475 shares sold in the prior three months.

Rhea-AI Filing Summary

Alector, Inc. (ALEC) officer Grace Wong-Sarad has filed a notice under Rule 144 to sell 656 shares of common stock of Alector, Inc. through Morgan Stanley Smith Barney LLC, with a proposed sale date of September 2, 2026.

The filing also reports that Wong-Sarad sold 3,475 shares of common stock during the past three months for an aggregate amount of $6,542.73.

Key Figures

Shares proposed to be sold: 656 shares Proposed sale date: September 2, 2026 Shares sold in past 3 months: 3,475 shares +2 more

5 metrics

Shares proposed to be sold 656 shares Amount of Alector, Inc. common stock covered by the Rule 144 notice

Proposed sale date September 2, 2026 Proposed date of sale for the 656 shares under Rule 144

Shares sold in past 3 months 3,475 shares Common shares sold on June 3, 2026 by Grace Wong-Sarad

Aggregate amount of past 3-month sales $6,542.73 Total consideration for 3,475 shares of common stock sold on June 3, 2026

Shares identified as Restricted Stock grant date March 1, 2025 Grant date for restricted stock related to the 656 shares to be sold

Key Terms

Rule 144, Restricted Stock, CUSIP

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock financial

"Common | 03/01/2025 | Restricted Stock | ISSUER"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

CUSIP financial

"Common | Morgan Stanley Smith Barney LLC ... | 656 | 1804.00 | 111656919"

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing by ALEC’s officer disclose?

It discloses that officer Grace Wong-Sarad filed a Rule 144 notice to sell 656 shares of Alector, Inc. common stock, with a proposed sale date of September 2, 2026, and reports prior sales over the last three months.

How many ALEC shares are proposed to be sold under this Form 144?

The notice covers a proposed sale of 656 shares of Alector, Inc. common stock under Rule 144, with Morgan Stanley Smith Barney LLC listed in connection with the transaction and a proposed sale date of September 2, 2026.

What ALEC share sales has Grace Wong-Sarad made in the past three months?

The filing reports that 3,475 shares of Alector, Inc. common stock were sold on June 3, 2026 for an aggregate amount of $6,542.73, in addition to the 656 shares proposed to be sold under the new notice.

What type of ALEC security is involved in this Form 144 filing?

The filing concerns common stock of Alector, Inc., including restricted stock originally issued by the issuer, with 656 shares indicated as the amount of securities to be sold under Rule 144.

Who is the person filing to sell ALEC shares and what is their role?

The person is Grace Wong-Sarad, identified as an officer of Alector, Inc. The notice is filed for her account under Rule 144 for the proposed sale of 656 shares of common stock and discloses prior sales.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/02/2026 - 05:10 PM EDT Accepted by SEC EDGAR 09/02/2026 - 05:09 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002074667
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ALECTOR, INC.
SEC File Number	001-38792
Address of Issuer	131 Oyster Point Blvd., Suite 600 South San Francisco CALIFORNIA 94080
Phone	415-231-5660
Name of Person for Whose Account the Securities are To Be Sold	GRACE WONG-SARAD
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	656	1804.00	111656919	09/02/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	03/01/2025	Restricted Stock	ISSUER			656	03/01/2025	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
GRACE WONG-SARAD 131 Oyster Point Blvd., Suite 600 South San Francisco CA 94080	Common	06/03/2026	3475	6542.73

144: Remarks and Signature

Remarks
Date of Notice	09/02/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	09/05/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Grace Wong-Sarad
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)