Bruce Booth - 06 Jan 2022 Form 3 Insider Report for Vigil Neuroscience, Inc. (VIGL)

Role: Director
Signature: /s/ Ommer Chohan, Attorney-in-Fact
Issuer symbol: VIGL
Transactions as of: 06 Jan 2022
Net transactions value: $0
Form type: 3
Filing time: 06 Jan 2022, 19:30:53 UTC
Previous filing: 12 Aug 2021
Next filing: 11 Jan 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	VIGL	Common Stock						1,442,376	06 Jan 2022	By Atlas Venture Fund XII, L.P.	F1

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
holding	VIGL	Series A Preferred Stock							06 Jan 2022	Common Stock	2,831,520		By Atlas Venture Fund XII, L.P.	F1, F2
holding	VIGL	Series B Preferred Stock							06 Jan 2022	Common Stock	1,027,978		By Atlas Venture Opportunity Fund I, L.P.	F2, F3

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

Explanation of Responses:

Id	Content
F1	These shares are held directly by Atlas Venture Fund XII, L.P. ("Atlas Venture Fund XII"). The general partner of Atlas Venture Fund XII is Atlas Venture Associates XII, L.P. ("AVA XII LP"). Atlas Venture Associates XII, LLC ("AVA XII LLC") is the general partner of AVA XII LP. The Reporting Person is a member of AVA XII LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund XII, except to the extent of his pecuniary interest therein, if any.
F2	These shares of Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") are convertible into Common Stock on a one-for-2.7732 basis at the option of the holder, and will automatically convert into the number of shares shown in Column 3 immediately prior to the closing of the Issuer's initial public offering. The Preferred Stock has no expiration date.
F3	The shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Venture Opportunity Fund I"). The general partner of Atlas Venture Opportunity Fund I is Atlas Venture Associates Opportunity I, L.P. ("AVAO I LP"). Atlas Venture Associates Opportunity I, LLC ("AVAO I LLC") is the general partner of AVAO I LP. The Reporting Person is a member of AVAO I LLC and disclaims beneficial ownership of such securities held by Atlas Venture Opportunity Fund I, except to the extent of his pecuniary interest therein, if any.

Remarks:

Exhibit 24 - Power of Attorney