Terrance McGuire - 14 Jun 2023 Form 4 Insider Report for Alector, Inc. (ALEC)

Role: Director, 10%+ Owner
Signature: /s/ Marc Grasso, by power of attorney
Issuer symbol: ALEC
Transactions as of: 14 Jun 2023
Net transactions value: $0
Form type: 4
Filing time: 15 Jun 2023, 16:03:29 UTC
Previous filing: 25 May 2023
Next filing: 11 Aug 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALEC	Common Stock	Award	$0	+26,250	+118%	$0.000000	48,567	14 Jun 2023	Direct	F1
holding	ALEC	Common Stock						11,853,817	14 Jun 2023	See footnote	F2
holding	ALEC	Common Stock						26,266	14 Jun 2023	See footnote	F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ALEC	Stock Option (right to buy)	Award	$0	+12,360		$0.000000	12,360	14 Jun 2023	Common Stock	12,360	$7.71	Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The reported shares are represented by restricted stock units, or RSUs, which vest on the earlier of (i) June 14, 2024 or (ii) the date of the Issuer's next annual meeting of stockholders.
F2	654,463 shares are held by Polaris Venture Partners Founders' Fund VI, L.P. ("PVPFF VI"), 8,589,364 shares are held by Polaris Venture Partners VI (AIV), L.P. ("PVP VI AIV"), 2,111,522 shares are held by Polaris Venture Partners VI (AIV-B), L.P. and 498,468 shares are held by Polaris Venture Partners VI, L.P. ("PVP VI")(collectively, the "Polaris Funds"). As a Managing Member of Polaris Venture Management Co. VI, L.L.C. ("PVM"), the Reporting Person may be deemed to share the power to vote and dispose of the shares held by the Polaris Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Polaris Funds, and this report shall not be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of his respective pecuniary interest therein.
F3	Shares held by McGuire Family 2008 GST Non-Exempt Irrevocable Trust ("McGuire Family Trust"). The Reporting Person, a member of the Issuer's board of directors, is the donor of McGuire Family Trust and may be deemed to have shared power to vote and dispose of the shares held by McGuire Family Trust.v
F4	The shares subject to the option vest in 12 equal monthly installments beginning on July 14, 2023, provided that the shares subject to the option will vest in full on the earlier of the one-year anniversary of the date of grant or the date of the Issuer's next annual meeting of stockholders.