Alector awards Grace Wong-Sarad 83,435 options

Q: What stock awards did ALEC’s Grace Wong-Sarad receive?

Grace Wong-Sarad received 55,555 RSUs and options covering 83,435 shares on October 14, 2026. The RSUs vest in 12 equal quarterly installments beginning December 1, 2026, and the options vest in 48 equal monthly installments beginning November 13, 2026.

The repricing leaves the affected options’ vesting schedules, expiration dates and underlying share counts unchanged.

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Rhea-AI Filing Summary

Alector, Inc. (ALEC) reported equity awards to Principal Accounting Officer Grace Wong-Sarad on October 14, 2026: 55,555 restricted stock units (RSUs) and options covering 83,435 shares, with a $1.88 exercise price. The RSUs vest in 12 equal quarterly installments beginning December 1, 2026; the options vest in 48 equal monthly installments beginning November 13, 2026. Direct common-stock holdings after the RSU award were 161,570 shares.

Alector’s Option Repricing was effective October 13, 2026. Existing options covering six disclosed share lots were disposed of to the issuer, and replacement options for the corresponding share counts were granted at a $1.87 exercise price. If an employee exercises a repriced option before the Retention Period ends, the premium exercise price equals the option’s original exercise price. The period ends at the earliest of one year following the Effective Date, a Change in Control, or the employee’s death or Disability.

Insider Trade Summary

14 transactions reported

Mixed 14 txns

Insider Wong-Sarad Grace

Role Principal Accounting Officer

Type	Security	Shares	Price	Value
Grant/Award	Employee Stock Option (right to buy) ^F5	83,435	$0.00	$0.00
Grant/Award	Common Stock ^F1	55,555	$0.00	$0.00
Disposition	Employee Stock Option (right to buy) ^{F3, F4, F2}	20,000	--	--
Grant/Award	Employee Stock Option (right to buy) ^{F3, F4, F2}	20,000	--	--
Disposition	Employee Stock Option (right to buy) ^{F3, F4, F2}	13,842	--	--
Grant/Award	Employee Stock Option (right to buy) ^{F3, F4, F2}	13,842	--	--
Disposition	Employee Stock Option (right to buy) ^{F3, F4, F2}	20,454	--	--
Grant/Award	Employee Stock Option (right to buy) ^{F3, F4, F2}	20,454	--	--
Disposition	Employee Stock Option (right to buy) ^{F3, F4, F2}	10,228	--	--
Grant/Award	Employee Stock Option (right to buy) ^{F3, F4, F2}	10,228	--	--
Disposition	Employee Stock Option (right to buy) ^{F3, F4, F2}	11,552	--	--
Grant/Award	Employee Stock Option (right to buy) ^{F3, F4, F2}	11,552	--	--
Disposition	Employee Stock Option (right to buy) ^{F3, F4, F2}	11,309	--	--
Grant/Award	Employee Stock Option (right to buy) ^{F3, F4, F2}	11,309	--	--

Holdings After Transaction: Employee Stock Option (right to buy) — 170,820 contracts (Direct); Common Stock — 161,570 shares (Direct)

Footnotes (5)

F1. The reported shares are represented by restricted stock units, or RSUs, which vest in 12 equal quarterly installments beginning on December 1, 2026.
F2. The shares subject to the option are fully vested and immediately exercisable.
F3. The transactions reported herein reflect a one-time stock option repricing (the "Option Repricing") effective on October 13, 2026 (the "Effective Date"). The Option Repricing applies to stock options with exercise prices greater than $1.87 per share held by all continuing employees of the Issuer as of the Effective Date.
F4. Pursuant to the Option Repricing, the exercise price of the repriced options, including the reported option, has been amended to reduce the exercise price to $1.87 per share, the closing price of the Issuer's common stock on the Effective Date. However, if an employee exercises a repriced Eligible Option before the end of a "Retention Period" that begins on the Effective Date of the Option Repricing and ends on the earliest to occur of the following: (i) one year following the Effective Date; (ii) a Change in Control, as defined in the Issuer's 2019 Equity Incentive Plan, as amended (the "2019 Plan"); and (iii) the optionholder's death or Disability (as defined in the 2019 Plan), then the employee will be required to pay a premium exercise price that is equal to the original exercise price per share of such option. There was no change to the vesting schedules, expiration dates or number of shares underlying the repriced options.
F5. Shares subject to the option vest in 48 equal monthly installments beginning on November 13, 2026.

Key Figures

RSU award: 55,555 shares Stock option award: 83,435 shares underlying options Option exercise price: $1.88 per share +3 more

6 metrics

RSU award 55,555 shares Granted October 14, 2026

Stock option award 83,435 shares underlying options Granted October 14, 2026

Option exercise price $1.88 per share Options granted October 14, 2026

Common stock holdings 161,570 shares Direct holdings following the October 14, 2026 RSU award

Repriced option exercise price $1.87 per share Replacement options granted in the repricing effective October 13, 2026

Original option exercise price $16.46 per share Original exercise price for the 20,000-option tranche repriced October 13, 2026

Key Terms

restricted stock units, or RSUs, Retention Period, premium exercise price, Eligible Option

4 terms

restricted stock units, or RSUs financial

"The reported shares are represented by restricted stock units, or RSUs"

Retention Period financial

"before the end of a "Retention Period""

premium exercise price financial

"required to pay a premium exercise price"

Eligible Option financial

"exercises a repriced Eligible Option"

FAQ

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What stock awards did ALEC’s Grace Wong-Sarad receive?

Grace Wong-Sarad received 55,555 RSUs and options covering 83,435 shares on October 14, 2026. The RSUs vest in 12 equal quarterly installments beginning December 1, 2026, and the options vest in 48 equal monthly installments beginning November 13, 2026.

What were the terms of ALEC’s repriced options?

For example, 20,000 options with an original $16.46 exercise price were replaced with options at $1.87 per share, expiring August 31, 2029. Another 13,842 options with an original $17.15 exercise price were replaced at $1.87 per share, expiring November 5, 2029.

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

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Available on EDGAR 10/15/2026 - 04:05 PM EDT Accepted by SEC EDGAR 10/15/2026 - 04:05 PM EDT

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

CALIFORNIA

94080

(City)

(State)

(Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/13/2026

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

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

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/14/2026		A		55,555⁽¹⁾	A	$0	161,570	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Employee Stock Option (right to buy)	$16.46	10/13/2026		D			20,000	⁽²⁾	08/31/2029	Common Stock	20,000	⁽³⁾⁽⁴⁾	0	D
Employee Stock Option (right to buy)	$1.87	10/13/2026		A		20,000		⁽²⁾	08/31/2029	Common Stock	20,000	⁽³⁾⁽⁴⁾	20,000	D
Employee Stock Option (right to buy)	$17.15	10/13/2026		D			13,842	⁽²⁾	11/05/2029	Common Stock	13,842	⁽³⁾⁽⁴⁾	0	D
Employee Stock Option (right to buy)	$1.87	10/13/2026		A		13,842		⁽²⁾	11/05/2029	Common Stock	13,842	⁽³⁾⁽⁴⁾	13,842	D
Employee Stock Option (right to buy)	$10.24	10/13/2026		D			20,454	⁽²⁾	09/30/2030	Common Stock	20,454	⁽³⁾⁽⁴⁾	0	D
Employee Stock Option (right to buy)	$1.87	10/13/2026		A		20,454		⁽²⁾	09/30/2030	Common Stock	20,454	⁽³⁾⁽⁴⁾	20,454	D
Employee Stock Option (right to buy)	$13.56	10/13/2026		D			10,228	⁽²⁾	11/30/2030	Common Stock	10,228	⁽³⁾⁽⁴⁾	0	D
Employee Stock Option (right to buy)	$1.87	10/13/2026		A		10,228		⁽²⁾	11/30/2030	Common Stock	10,228	⁽³⁾⁽⁴⁾	10,228	D
Employee Stock Option (right to buy)	$23.7	10/13/2026		D			11,552	⁽²⁾	09/30/2031	Common Stock	11,552	⁽³⁾⁽⁴⁾	0	D
Employee Stock Option (right to buy)	$1.87	10/13/2026		A		11,552		⁽²⁾	09/30/2031	Common Stock	11,552	⁽³⁾⁽⁴⁾	11,552	D
Employee Stock Option (right to buy)	$9.46	10/13/2026		D			11,309	⁽²⁾	09/30/2032	Common Stock	11,309	⁽³⁾⁽⁴⁾	0	D
Employee Stock Option (right to buy)	$1.87	10/13/2026		A		11,309		⁽²⁾	09/30/2032	Common Stock	11,309	⁽³⁾⁽⁴⁾	11,309	D
Employee Stock Option (right to buy)	$1.88	10/14/2026		A		83,435		⁽⁵⁾	10/13/2036	Common Stock	83,435	$0	83,435	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, 2026.

2. The shares subject to the option are fully vested and immediately exercisable.

3. The transactions reported herein reflect a one-time stock option repricing (the "Option Repricing") effective on October 13, 2026 (the "Effective Date"). The Option Repricing applies to stock options with exercise prices greater than $1.87 per share held by all continuing employees of the Issuer as of the Effective Date.

4. Pursuant to the Option Repricing, the exercise price of the repriced options, including the reported option, has been amended to reduce the exercise price to $1.87 per share, the closing price of the Issuer's common stock on the Effective Date. However, if an employee exercises a repriced Eligible Option before the end of a "Retention Period" that begins on the Effective Date of the Option Repricing and ends on the earliest to occur of the following: (i) one year following the Effective Date; (ii) a Change in Control, as defined in the Issuer's 2019 Equity Incentive Plan, as amended (the "2019 Plan"); and (iii) the optionholder's death or Disability (as defined in the 2019 Plan), then the employee will be required to pay a premium exercise price that is equal to the original exercise price per share of such option. There was no change to the vesting schedules, expiration dates or number of shares underlying the repriced options.

5. Shares subject to the option vest in 48 equal monthly installments beginning on November 13, 2026.

	/s/ Grace Wong-Sarad	10/15/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR