Vigil Neuroscience, Inc. (VIGL) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

Medium Risk
Moderate dilution risk
Last updated: August 05, 2025

Risk Assessment Details

Potential Dilution: 39.78% of current shares
Recent Dilution: 18.42% (2 years)
Historical Dilution Factor: moderate recent dilution
Outstanding Shares
46M
Potential Supply
18M
Additional shares possible
Splits
None
Past 2 years

Summary

VIGL currently has 46.1M outstanding shares. with moderate dilution risk from 18.3M authorized shares representing 39.8% potential dilution. The company has diluted shareholders by 18.42% over the past 2 years through share issuances.

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
Aug 05, 2025

POS AM filing: This POS AM filing deregisters securities due to the merger between Vigil Neuroscience, Inc. and Sanofi, terminating all existing offerings under previous registration statements.

46M 18M
Aug 05, 2025

POS AM filing: This POS AM filing indicates the deregistration of securities due to the merger of Vigil Neuroscience, Inc. with a subsidiary of Sanofi, leading to the termination of all existing offerings and the removal of unsold registered securities.

46M 49M
Aug 05, 2025

10-Q filing | 47.6M shares outstanding

48M 54M
May 07, 2025

10-Q filing | 46.1M shares outstanding

46M 54M
Mar 31, 2025

S-3 filing: The selling stockholder may offer and sell up to 5,376,340 shares of common stock issuable upon the conversion of 537,634 shares of Series A Preferred Stock.

47M 54M
Mar 13, 2025

10-K filing | 46.7M shares outstanding

47M 49M
Nov 07, 2024

10-Q filing | 40.6M shares outstanding

41M 49M
Aug 13, 2024

10-Q filing | 40.6M shares outstanding

41M 49M
May 07, 2024

10-Q filing | 39.9M shares outstanding

40M 49M
Mar 26, 2024

10-K filing | 38.7M shares outstanding

39M 49M
Nov 07, 2023

10-Q filing | 38.8M shares outstanding

39M 49M
Aug 08, 2023

10-Q filing | 38.7M shares outstanding

39M 49M
May 10, 2023

10-Q filing | 38.5M shares outstanding

39M 49M
Mar 21, 2023

10-K filing | 35.6M shares outstanding

36M 49M
Mar 21, 2023

S-3 filing: Vigil Neuroscience files an S-3 form on 2023-03-21 for a shelf offering of common stock, preferred stock, and debt securities, with a total proposed amount of $300,000,000. Additionally, there is an offering of common stock through Jefferies LLC, acting as a sales agent, with an aggregate offering price of up to $100,000,000.

33M 49M
Nov 10, 2022

10-Q filing | 33.3M shares outstanding

33M 18M
Sep 30, 2022

S-1 filing: This S-1 filing relates to the proposed resale or other disposition by the selling stockholders of 10,273,973 shares of common stock, consisting of shares of our common stock, and pre-funded warrants to purchase shares of our common stock.

28M 18M
Aug 08, 2022

10-Q filing | 28.3M shares outstanding

28M 8.1M
May 12, 2022

10-Q filing | 28.3M shares outstanding

28M 8.1M
Jan 03, 2022

S-1/A filing: This S-1/A filing is for an initial public offering of common stock. The company intends to use the net proceeds from this offering to advance the development of VGL101, for the continued research of our novel, small molecule program and development programs, and for working capital and other general corporate purposes.

28M 8.1M
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