Alector Insider Sale: 5,910 Shares Sold to Cover RSU Taxes

Rhea-AI Filing Summary

Alector, Inc. (ALEC) Form 4 by Grace Wong-Sarad reports a routine disposition of company common stock tied to RSU vesting tax obligations. The reporting person sold a total of 5,910 shares on 09/02/2025 at a weighted-average price of $2.4968, with individual trade prices ranging from $2.30 to $2.59. After the sale, the reporting person beneficially owns 103,448 shares. The filing states the shares were sold to satisfy tax obligations arising from the vesting of restricted stock units.

Positive

• Reporting person retains significant ownership with 103,448 shares remaining after the sale
• Sale categorized as tax-related RSU disposition, a routine compensation-related transaction

Negative

• 5,910 shares were sold, reducing the reporting person's direct holdings
• Weighted-average sale price was $2.4968, indicating disposition occurred at prices below or near recent market levels (range $2.30–$2.59)

Insights

Corporate Governance Expert

TL;DR: Routine tax-related RSU sale by an officer; retains substantial holdings.

The reported transaction is described as a sale to cover tax liabilities from RSU vesting, which is a common and non-dispositive insider event. The sale of 5,910 shares at a weighted-average price of $2.4968 reduced holdings but leaves the reporting person with 103,448 shares, indicating continued economic exposure and alignment with shareholders. No additional governance or compensation changes are disclosed in the filing.

Securities Analyst

TL;DR: Non-material insider sale for tax purposes; not an issuance or exercise indicating strategic change.

The filing shows a sale labeled S(1) on 09/02/2025 with prices between $2.30 and $2.59. The explanation confirms the sale satisfied tax obligations tied to RSU vesting rather than an opportunistic disposition. Because the report shows continued ownership of 103,448 shares, the transaction is unlikely to be material to the company's capital structure or share count.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Wong-Sarad Grace

(Last) (First) (Middle)

C/O ALECTOR, INC.

131 OYSTER POINT BLVD., SUITE 600

(Street)

SOUTH SAN FRANCISCO CA 94080

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Alector, Inc. [ ALEC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Principal Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
09/02/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/02/2025		S(1)		5,910	D	$2.4968(2)	103,448	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

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

2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.30 to $2.59. 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.

	/s/ Grace Wong-Sarad	09/04/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Grace Wong-Sarad report on the Form 4 for ALEC?

The filing reports a sale of 5,910 shares on 09/02/2025 and beneficial ownership of 103,448 shares following the transaction.

Why were the ALEC shares sold by the reporting person?

The filing states the shares were sold to satisfy tax obligations arising from the vesting of restricted stock units (RSUs).

At what price were the ALEC shares sold?

A weighted-average price of $2.4968 is reported, with individual sale prices ranging from $2.30 to $2.59.

Does this Form 4 disclose any new derivative transactions or exercises?

No. Table II shows no derivative securities transactions; only a non-derivative disposition of common stock is reported.

When was the Form 4 signed by the reporting person?

The signature block shows /s/ Grace Wong-Sarad dated 09/04/2025.