Alector officer plans sale of 3,625 shares

An Alector, Inc. officer filed a Rule 144 notice to sell 3,625 restricted common shares, with prior recent sales also disclosed for volume compliance.

Rhea-AI Filing Summary

Alector, Inc. (ALEC) received a notice under Rule 144 that officer Grace Wong-Sarad plans to sell common stock through Morgan Stanley Smith Barney LLC. The planned sale covers 3,625 shares of restricted common stock, with an indicated aggregate market value of $9,094.40 as of the stated pricing date.

The notice also lists earlier sales of Alector common stock by the same person within the prior three months, which are relevant for Rule 144 volume calculations.

Key Figures

Planned shares to be sold: 3,625 shares Aggregate market value of planned sale: $9,094.40 Shares sold on September 3, 2026: 5,165 shares +3 more

6 metrics

Planned shares to be sold 3,625 shares Common stock listed as securities to be sold under Rule 144

Aggregate market value of planned sale $9,094.40 Value associated with the 3,625 Alector common shares to be sold

Shares sold on September 3, 2026 5,165 shares Prior Alector common stock sale by Grace Wong-Sarad during past three months

Proceeds from September 3, 2026 sale $13,767.40 Amount received for 5,165 Alector common shares sold

Shares sold on September 2, 2026 656 shares Alector common stock sale by Grace Wong-Sarad during past three months

Proceeds from September 2, 2026 sale $1,804.00 Amount received for 656 Alector common shares sold

Key Terms

Rule 144, Restricted Stock, aggregate market value

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 | 09/01/2026 | 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.

aggregate market value financial

"Common | Morgan Stanley Smith Barney LLC ... | 3625 | 9094.40"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

What does the Rule 144 notice disclose for Alector, Inc. (ALEC)?

It discloses that officer Grace Wong-Sarad plans to sell 3,625 shares of Alector common stock under Rule 144, with an aggregate market value of $9,094.40 based on the referenced market price, through broker Morgan Stanley Smith Barney LLC.

Who is selling Alector (ALEC) stock under this Rule 144 notice?

The notice identifies Grace Wong-Sarad, an officer of Alector, Inc., as the person for whose account the Alector common stock will be sold. The broker listed is Morgan Stanley Smith Barney LLC Executive Financial Services in New York.

How many Alector (ALEC) shares are planned to be sold and of what type?

The planned sale covers 3,625 shares of Alector common stock, described as Restricted Stock. The securities are to be sold under Rule 144, with the issuer shown as Alector, Inc. and the trading market identified as NASDAQ.

What prior Alector (ALEC) stock sales are reported in the last three months?

The notice reports that Grace Wong-Sarad sold Alector common stock on September 3, 2026 (5,165 shares for $13,767.40) and on September 2, 2026 (656 shares for $1,804.00). These transactions are listed for Rule 144 aggregation purposes.

On what dates will the new Alector (ALEC) Rule 144 sale occur?

The securities to be sold section lists a proposed sale date of September 1, 2026 for the 3,625 restricted common shares. Other dates in the document include an information date of September 4, 2026 and a signature date of September 5, 2025.

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

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Available on EDGAR 09/04/2026 - 04:05 PM Accepted by SEC EDGAR 09/04/2026 - 04:05 PM 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	3625	9094.40	111656919	09/04/2026	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	09/01/2026	Restricted Stock	ISSUER			3625	09/01/2026	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	09/03/2026	5165	13767.40
GRACE WONG-SARAD 131 Oyster Point Blvd., Suite 600 South San Francisco CA 94080	Common	09/02/2026	656	1804.00

144: Remarks and Signature

Remarks
Date of Notice	09/04/2026
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)