Alector insider plans 11K-share tax-driven sale

Grace Wong-Sarad’s proposed Rule 144 sale would be used mainly to cover taxes from RSU vesting, per the filing.

Rhea-AI Filing Summary

Alector, Inc. (ALEC) insider Grace Wong-Sarad filed a notice of proposed sale of company common stock under Rule 144. The shares relate to vested restricted stock units, with sales primarily intended to satisfy tax obligations arising from RSU vesting.

The planned sale involves common stock held at Morgan Stanley Smith Barney LLC Executive Financial Services and is to be executed on Nasdaq. The filing also lists prior Rule 144 sales of Alector common stock by the same person over the past three months.

Key Figures

Shares to be sold (current notice): 11,127 shares of Common Stock Current holding listed for sale valuation: 5,662 shares; $13,588.80 aggregate market value Implied per-share value: $11.17 per share +3 more

6 metrics

Shares to be sold (current notice) 11,127 shares of Common Stock Securities to be sold on 09/01/2026 related to vesting of RSUs

Current holding listed for sale valuation 5,662 shares; $13,588.80 aggregate market value Common stock at Morgan Stanley Smith Barney LLC as of 09/02/2026

Implied per-share value $11.17 per share Derived from 5,662 shares and $13,588.80 aggregate value as of 09/02/2026

Prior sale on 06/02/2026 5,709 shares; $11,270.96 Common stock sold during the past 3 months by Grace Wong-Sarad

Prior sale on 06/03/2026 3,475 shares; $6,542.73 Common stock sold during the past 3 months by Grace Wong-Sarad

Date of Notice 09/01/2026 Form 144 notice date signed by Grace Wong-Sarad

Key Terms

Rule 144, restricted stock units, vesting, settlement of vested restricted stock units, +1 more

5 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 units financial

"The securities to be sold were received upon the settlement of vested restricted stock units, or RSUs."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

vesting financial

"The reported shares will be sold to satisfy the reporting person's tax obligations in connection with the vesting of RSUs."

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

settlement of vested restricted stock units financial

"The securities to be sold were received upon the settlement of vested restricted stock units, or RSUs."

Nasdaq market

"111692011 | 09/02/2026 | Nasdaq"

The Nasdaq is a stock exchange where many companies' shares are bought and sold, functioning much like a marketplace for investments. It matters to investors because it provides a platform to buy and sell ownership stakes in companies, helping them track the value of those companies and make informed decisions. As one of the largest and most technology-focused markets, it also reflects trends and developments in the business world.

FAQ

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

What does the Form 144 filing by ALEC insider Grace Wong-Sarad disclose?

It discloses a proposed Rule 144 sale of Alector, Inc. (ALEC) common stock by Grace Wong-Sarad. The shares were received upon settlement of vested RSUs, and the reported shares will be sold to satisfy tax obligations related to the RSU vesting.

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

The filing lists 11,127 shares of Alector common stock as securities to be sold on 09/01/2026, received upon the settlement of vested restricted stock units. The sale is to satisfy the reporting person’s tax obligations in connection with RSU vesting.

What recent ALEC stock sales by Grace Wong-Sarad are disclosed?

The filing reports two prior sales of Alector common stock over the past three months: 5,709 shares on 06/02/2026 for proceeds of $11,270.96, and 3,475 shares on 06/03/2026 for proceeds of $6,542.73.

What is the estimated value of the ALEC shares currently planned for sale?

The securities information section lists 5,662 shares of Alector common stock at an aggregate market value of $13,588.80, based on a $11.17 per-share value as of 09/02/2026, held at Morgan Stanley Smith Barney LLC Executive Financial Services.

Why are the ALEC shares being sold according to this Form 144?

According to the remarks, the shares were received upon the settlement of vested RSUs, and the reported shares will be sold to satisfy the reporting person’s tax obligations in connection with the vesting of those RSUs.

On which market is the ALEC stock associated with this Form 144 listed?

The common stock referenced in the Form 144 is listed on Nasdaq, as stated in the securities information section for Alector, Inc. common stock.

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

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Available on EDGAR 09/01/2026 - 08:00 PM EDT Accepted by SEC EDGAR 09/01/2026 - 08:00 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 Stock	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	5662	13588.80	111692011	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 Stock	09/01/2026	Vesting of Restricted Stock Units	Issuer			11127	09/01/2026	(1)

* 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 C/O Alector, Inc. 131 Oyster Point Blvd., Suite 600 South San Francisco CA 94080	Common Stock	06/02/2026	5709	11270.96
Grace Wong-Sarad C/O Alector, Inc. 131 Oyster Point Blvd., Suite 600 South San Francisco CA 94080	Common Stock	06/03/2026	3475	6542.73

144: Remarks and Signature

Remarks	(1) The securities to be sold were received upon the settlement of vested restricted stock units, or RSUs. The reported shares will be sold to satisfy the reporting person's tax obligations in connection with the vesting of RSUs.
Date of Notice	09/01/2026
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)