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Filing Details

Accession Number:: 0000899243-20-017680
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2020-06-25 17:47:35
Reporting Period:: 2020-06-23

Accepted Time:: 2020-06-25 17:47:35
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1653087	Alector Inc.	ALEC	()	DE

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1493463	Polaris Venture Partners Vi, L.p.	One Marina Park Drive, 10Th Floor Boston MA 02210	No	No	Yes	No
1575691	Polaris Venture Partners Founders' Fund Vi, L.p.	One Marina Park Drive, 10Th Floor Boston MA 02210	No	No	Yes	No
1665594	Polaris Venture Management Co. Vi, L.l.c.	One Marina Park Drive, 10Th Floor Boston MA 02210	No	No	Yes	No
1767127	Polaris Venture Partners Vi (Aiv), L.p.	One Marina Park Drive, 10Th Floor Boston MA 02210	No	No	Yes	No
1767130	Pvp Vi (Aiv) Feeder Corp. Holding Partnership, L.p.	One Marina Park Drive, 10Th Floor Boston MA 02210	No	No	Yes	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2020-06-23	4,377	$31.54	12,853,817	No	4	S	Indirect	See footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	See footnote

Footnotes

242 shares were sold by Polaris Venture Partners Founders' Fund VI, L.P ("PVPFF VI"), 3,153 shares were sold by Polaris Venture Partners VI (AIV), L.P. ("PVP VI AIV") and 982 shares were sold by PVP VI (AIV) Feeder Corp. Holding Partnership, L.P. ("PVP VI Feeder" and, together with PVP VI AIV, PVPFF VI, and Polaris Venture Partners VI, L.P. ("PVP VI"), the "Polaris Funds"). The general partner of each of the Polaris Funds is Polaris Venture Management Co. VI, L.L.C. ("PVM"). Each of Amir Nashat, Brian Chee, David Barrett, Bryce Youngren, Jonathan Flint, and Terrance McGuire, a member of the Issuer's board of directors, are managing members of PVM (collectively, the "Managing Members") and may be deemed to have shared power to vote and dispose of the shares held by the Polaris Funds.
(Continued from footnote 1) Each of the Managing Members and PVM disclaims beneficial ownership of the securities held by the Polaris Funds, and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interest therein.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.50 to $31.61, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4.
709,675 shares are held by PVPFF VI, 9,347,724 shares are held by PVP VI AIV, 2,297,950 shares are held by PVP VI Feeder and 498,468 shares are held by PVP VI. Each of the Managing Members and PVM disclaims beneficial ownership of the securities held by the Polaris Funds, and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interest therein.