Alector (ALEC) Form 4: 32,343 RSUs; 48,535 options awarded

Alector (ALEC) reported an insider equity award.

Rhea-AI Filing Summary

Alector (ALEC) reported an insider equity award. Principal Accounting Officer Grace Wong-Sarad filed a Form 4 for transactions on 11/10/2025.

The filing shows 32,343 restricted stock units acquired at $0. RSUs vest in 12 equal quarterly installments beginning on December 1, 2025. Following the award, beneficial ownership stands at 135,791 shares, held directly.

It also reports an employee stock option grant covering 48,535 shares at an exercise price of $1.31, expiring on 11/09/2035. Options vest in 48 equal monthly installments beginning on December 10, 2025.

Insider Trade Summary

Grant/Award: 80,878 shares

Grant/Award 2 txns

Insider Wong-Sarad Grace

Role Principal Accounting Officer

Type	Security	Shares	Price	Value
Grant/Award	Employee Stock Option (right to buy)	48,535	$0.00	$0.00
Grant/Award	Common Stock	32,343	$0.00	$0.00

Holdings After Transaction: Employee Stock Option (right to buy) — 48,535 contracts (Direct); Common Stock — 135,791 shares (Direct)

Footnotes (2)

1. F1. The reported shares are represented by restricted stock units, or RSUs, which vest in 12 equal quarterly installments beginning on December 1, 2025.
2. F2. Shares subject to the option vest in 48 equal monthly installments beginning on December 10, 2025.

FAQ

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

What did Alector (ALEC) disclose in this Form 4?

A principal officer reported equity awards on 11/10/2025, including 32,343 RSUs and an option for 48,535 shares at $1.31.

Who is the reporting person and their role at Alector (ALEC)?

The reporting person is Grace Wong-Sarad, Alector’s Principal Accounting Officer.

How do the RSUs vest for ALEC?

The 32,343 RSUs vest in 12 equal quarterly installments starting December 1, 2025.

What are the terms of the stock options reported?

Options for 48,535 shares have a $1.31 exercise price, vest in 48 monthly installments starting December 10, 2025, and expire on 11/09/2035.

What is the reporting person’s beneficial ownership after the transactions?

Beneficial ownership is 135,791 shares, held directly.

Was a Rule 10b5-1 trading plan indicated?

The form includes the 10b5-1 checkbox reference; the excerpt does not indicate it was checked.

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

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Accepted by SEC EDGAR 11/12/2025 - 04:19 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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)
11/10/2025

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	11/10/2025		A		32,343(1)	A	$0	135,791	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
Employee Stock Option (right to buy)	$1.31	11/10/2025		A		48,535		(2)	11/09/2035	Common Stock	48,535	$0	48,535	D

Explanation of Responses:

1. The reported shares are represented by restricted stock units, or RSUs, which vest in 12 equal quarterly installments beginning on December 1, 2025.

2. Shares subject to the option vest in 48 equal monthly installments beginning on December 10, 2025.

	/s/ Grace Wong-Sarad	11/12/2025
	** 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.