Alector (ALEC) accounting officer sells shares to cover RSU tax bill

Rhea-AI Filing Summary

Alector, Inc. Principal Accounting Officer Grace Wong-Sarad reported an open-market sale of 8,071 shares of common stock. The weighted average sale price was $2.1234 per share, with individual trades executed between $2.04 and $2.37 per share.

According to the disclosure, the shares were sold to satisfy the reporting person's tax obligations arising from the vesting of restricted stock units. After this transaction, the officer directly owned 110,832 shares of Alector common stock.

Insider Trade Summary

Net Seller: 8,071 shares ($17,138)

Net Sell 1 txn

Insider Wong-Sarad Grace

Role Principal Accounting Officer

Sold 8,071 shs ($17K)

Type	Security	Shares	Price	Value
Sale	Common Stock	8,071	$2.1234	$17K

Holdings After Transaction: Common Stock — 110,832 shares (Direct)

Footnotes (1)

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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2.04 to $2.37. 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.

Form 4 Insider Transactions: What Each Field Means →

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
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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)
03/02/2026

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	03/02/2026		S(1)		8,071	D	$2.1234(2)	110,832	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 $2.04 to $2.37. 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	03/03/2026
	** 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 insider transaction did Alector (ALEC) report for Grace Wong-Sarad?

Alector reported that Principal Accounting Officer Grace Wong-Sarad sold 8,071 shares of common stock. The transaction was an open-market sale primarily conducted to cover tax obligations related to vesting restricted stock units, as disclosed in the filing’s footnotes.

At what price were the Alector (ALEC) shares sold in this Form 4?

The reported weighted average sale price was $2.1234 per share. Footnotes state the 8,071 shares were sold in multiple transactions at prices ranging from $2.04 to $2.37 per share, with detailed trade breakdowns available upon request.

Why did Alector’s Principal Accounting Officer sell shares in this Form 4?

The filing explains the shares were sold to satisfy Grace Wong-Sarad’s tax obligations. These obligations arose in connection with the vesting of restricted stock units, meaning the sale is tied to equity compensation rather than a discretionary portfolio decision.

How many Alector (ALEC) shares does Grace Wong-Sarad own after the reported sale?

After selling 8,071 shares, Grace Wong-Sarad directly owns 110,832 shares of Alector common stock. This post-transaction ownership figure is specifically disclosed in the Form 4 and reflects her remaining direct holdings following the tax-related sale.

Was the Alector (ALEC) insider sale a direct or indirect ownership transaction?

The Form 4 classifies the transaction as directly owned by the reporting person. The ownership code is listed as “D” for direct, and there is no footnote indicating that the shares were held through a separate entity, trust, or family vehicle.

Does the Alector (ALEC) Form 4 mention how trade details can be obtained?

Yes. The filing notes that full information on the number of shares sold at each separate price between $2.04 and $2.37 can be provided to SEC staff, the issuer, or any Alector security holder upon request, offering transparency into the trade breakdown.