Jennifer Lynn Ziolkowski - Aug 5, 2025 Form 4 Insider Report for Vigil Neuroscience, Inc. (VIGL)

Signature
/s/ Michael Cohen, Attorney-in-Fact
Stock symbol
VIGL
Transactions as of
Aug 5, 2025
Transactions value $
$0
Form type
4
Date filed
8/5/2025, 09:54 AM
Previous filing
Mar 4, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Ziolkowski Jennifer Lynn Chief Financial Officer, Director VIGIL NEUROSCIENCE, INC., 100 FORGE ROAD, SUITE 700, WATERTOWN /s/ Michael Cohen, Attorney-in-Fact 2025-08-05 0001727410

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction VIGL Common Stock Disposed to Issuer -4K -100% 0 Aug 5, 2025 Direct 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
transaction VIGL Stock Option Award (Right to Buy) Disposed to Issuer -50K -100% 0 Aug 5, 2025 Common Stock 50K $3.78 Direct F1, F2
transaction VIGL Stock Option Award (Right to Buy) Disposed to Issuer -120K -100% 0 Aug 5, 2025 Common Stock 120K $3.78 Direct F1, F2
transaction VIGL Stock Option Award (Right to Buy) Disposed to Issuer -96.1K -100% 0 Aug 5, 2025 Common Stock 96.1K $6.02 Direct F1, F2
transaction VIGL Stock Option Award (Right to Buy) Disposed to Issuer -21.6K -100% 0 Aug 5, 2025 Common Stock 21.6K $9.57 Direct F1, F3
transaction VIGL Stock Option Award (Right to Buy) Disposed to Issuer -156K -100% 0 Aug 5, 2025 Common Stock 156K $3.39 Direct F1, F2
transaction VIGL Stock Option Award (Right to Buy) Disposed to Issuer -156K -100% 0 Aug 5, 2025 Common Stock 156K $2.19 Direct F1, F2
transaction VIGL Stock Option Award (Right to Buy) Disposed to Issuer -110K -100% 0 Aug 5, 2025 Common Stock 110K $3.03 Direct F1, F2
transaction VIGL Stock Option Award (Right to Buy) Disposed to Issuer -135K -100% 0 Aug 5, 2025 Common Stock 135K $3.03 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Jennifer Lynn Ziolkowski is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id Content
F1 This Form 4 reports securities disposed pursuant to the Agreement and Plan of Merger (the "Merger Agreement") by and among the Issuer, Sanofi ("Parent"), and Vesper Acquisition Sub Inc., a wholly owned subsidiary of Parent ("Merger Sub"). Pursuant to the terms of the Merger Agreement, on August 5, 2025 (the "Effective Time"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer continuing as the surviving corporation in the Merger and as a wholly owned subsidiary of Parent. At the Effective Time, each share of Issuer Common Stock issued and outstanding immediately prior to the Effective Time was converted into the right to receive (i) $8.00 per share of Common Stock in cash, without interest (the "Closing Amount") plus (ii) one contingent value right ("CVR"), representing the right to receive $2.00 payable in cash, conditioned upon satisfaction of a certain clinical milestone (together with the Closing Amount, the "Merger Consideration").
F2 Pursuant to the terms of the Merger Agreement, at the Effective Time, each stock option that was outstanding as of immediately prior to the Effective Time, to the extent unvested, was accelerated and became fully vested. Each stock option having an exercise price per share that was less than the Closing Amount was cancelled and converted into the right to receive (i) an amount, without interest, equal to the product of (a) the total number of shares subject to such option immediately prior to the Effective Time, multiplied by (b) the excess of (1) the Closing Amount over (2) the exercise price per share under such option and (ii) one CVR for each share subject to such option.
F3 Each stock option having an exercise price per share that is equal to or greater than the Closing Amount but less than $10.00 was cancelled and converted into the right to receive one CVR for each share subject to such option immediately prior to the Effective Time, except that if the milestone is achieved in respect of the CVR, the cash amount to be paid to such option holder will be an amount equal to (i) $10.00 minus (ii) the exercise price per share subject to such option, subject to applicable tax withholdings