Alector (NASDAQ: ALEC) files notice to sell 35,795 RSU shares

Rhea-AI Filing Summary

Alector, Inc. filed a Form 144 notice reporting proposed sales tied to the vesting of Restricted Stock Units. The filing lists 35,795 shares related to RSU vesting on 06/01/2026.

The excerpt also shows 29,649 shares reported as sold on 03/02/2026 in the prior three months. The filing is a routine sale notice under the securities resale rules.

Insights

Securities Compliance Counsel

Routine Form 144 notice for RSU-related sales; timing and mechanics are specified.

The filing lists the vesting of Restricted Stock Units and a proposed resale of 35,795 shares on 06/01/2026. Form 144 is a regulatory notice required when affiliates intend to sell restricted or control securities; it does not itself effect a sale.

Cash‑flow treatment and distribution method are not stated in the provided excerpt; subsequent brokerage or Form 4 filings may disclose actual transactions and net proceeds.

Corporate Governance Analyst

Shows recent insider disposition activity but no material governance change.

The excerpt also records 29,649 shares sold on 03/02/2026, indicating prior disposition activity in the three‑month window. The amounts are modest relative to typical outstanding capitalization levels for publicly traded issuers.

Because this is a notice rather than a completed sale, monitoring subsequent filings will show whether the proposed resale occurred and its cash impact.

Key Figures

Proposed resale: 35,795 shares Recent sale: 29,649 shares

2 metrics

Proposed resale 35,795 shares Vesting of Restricted Stock Units on <date>06/01/2026</date>

Recent sale 29,649 shares Sold on <date>03/02/2026</date> (past three months)

Key Terms

Restricted Stock Units, Form 144, Securities Sold During The Past 3 Months

3 terms

Restricted Stock Units financial

"Vesting of Restricted Stock Units | Issuer | 35795 | 06/01/2026"

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.

Form 144 regulatory

"CONTENT METADATA: "form_type": "144""

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Securities Sold During The Past 3 Months regulatory

"Securities Sold During The Past 3 Months | ... | 03/02/2026 | 29649"

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Accepted by SEC EDGAR 06/01/2026 - 07:00 PM Learn about SEC filing dates

FAQ

What does Alector's Form 144 filed for ALEC mean?

It notifies the SEC of an intended resale of restricted shares tied to RSU vesting. The filing lists 35,795 shares related to vesting on 06/01/2026, which is a regulatory disclosure rather than a completed sale.

How many shares does the Form 144 show Alector intends to sell?

The notice lists 35,795 shares connected to RSU vesting on 06/01/2026. This is the quantity reported as the securities to be sold in the provided excerpt.

Has any related sale already occurred for ALEC shares?

Yes; the excerpt shows 29,649 shares reported as sold on 03/02/2026 within the past three months, as disclosed in the filing's "Securities Sold During The Past 3 Months" section.

Does Form 144 itself complete the sale of ALEC shares?

No; Form 144 is a notice of an intended resale by an affiliate. A completed sale requires actual market or negotiated transactions and is reported separately when executed.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	18213	37700.91	111026437	06/02/2026	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	06/01/2026	Vesting of Restricted Stock Units	Issuer			35795	06/01/2026	(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
Neil Berkley C/O Alector, Inc. 131 Oyster Point Blvd., Suite 600 South San Francisco CA 94080	Common Stock	03/02/2026	29649	62857.08

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)