ProMIS Neurosciences Inc. (PMN) - Dilution Analysis

Visualizing historical and potential share dilution over time

Dilution Analysis

High Risk
Significant dilution risk
Last updated: March 25, 2026

Risk Assessment Details

Potential Dilution: 1133.72% of current shares
Recent Dilution: 477.11% (2 years)
Historical Dilution Factor: significant recent dilution
Outstanding Shares
2.2M
Potential Supply
24M
Additional shares possible
Splits
1 Split
Past 2 years

Summary

PMN currently has 2.15M outstanding shares. with significant dilution risk as 24.4M authorized shares could dilute existing holders by 1133.7%. The company has significantly diluted shareholders by 477.11% over the past 2 years, indicating aggressive capital raising. Recent corporate actions include 1 stock split (positive for accessibility).

Share Structure Timeline

Outstanding Shares
Total Supply

Historical Data Points

Date Event Outstanding Supply
Mar 25, 2026

S-3 filing: PROMIS NEUROSCIENCES INC. is offering common shares, preferred shares, subscription receipts, and debt securities for a total proposed amount of $200,000,000.

2.2M 24M
Mar 25, 2026

10-K filing | 9.0M shares outstanding

9M 18M
Mar 18, 2026

S-3 filing: This is an S-3 filing for the resale of up to 13,830,592 common shares by selling securityholders, including shares, common shares issuable upon exercise of Common Share purchase warrants, and common shares issuable upon exercise of Pre-Funded Warrants.

2M 25M
Jan 30, 2026

8-K filing: ProMIS Neurosciences Inc. entered into a Securities Purchase Agreement to sell 6,815,296 common shares, Common Share purchase warrants to purchase 6,915,296 Common Shares and Pre-Funded Warrants to purchase 100,000 Common Shares to PIPE Investors.

2M 3.8M
Nov 28, 2025
Stock Split

8-K filing: Stock split one-for-twenty-five | Outstanding: 48,833,799 → 1,953,351

2M 3.8M
Nov 12, 2025

10-Q filing | 48.8M shares outstanding

49M 94M
Sep 04, 2025

S-3 filing: This prospectus relates to the resale of common shares by selling securityholders upon exercise of warrants.

33M 110M
Aug 13, 2025

S-3 filing: Promis Neurosciences Inc. files an S-3 form to offer common shares, preferred shares, subscription receipts, and debt securities for a total amount of $50,000,000.

33M 82M
Aug 13, 2025

10-Q filing | 34.9M shares outstanding

35M 51M
Jul 22, 2025

8-K filing: ProMIS Neurosciences Inc. entered into a securities purchase agreement for a registered direct offering of a pre-funded warrant to purchase 984,736 common shares at $0.8124 per share, and a PIPE offering for a warrant to purchase 12,616,821 common shares at $0.1875 per share. ($3.2M proceeds)

35M 51M
May 12, 2025

10-Q filing | 34.9M shares outstanding

35M 51M
Mar 31, 2025

10-K filing | 32.7M shares outstanding

33M 53M
Nov 14, 2024

10-Q filing | 30.1M shares outstanding

30M 56M
Aug 29, 2024

S-3 filing: Resale of up to 56,514,784 common shares by selling securityholders.

20M 66M
Aug 08, 2024

10-Q filing | 19.8M shares outstanding

20M 9.6M
Jul 26, 2024

8-K filing: ProMIS Neurosciences Inc. entered into a Unit Purchase Agreement to sell Common Share Units and Pre-Funded Units to PIPE Investors, expecting to raise $30.3 million in gross proceeds, and will convert Series 2 Preferred Shares into 1,166,667 common shares upon closing. ($60.6M proceeds)

20M 9.8M
May 14, 2024

10-Q filing | 19.5M shares outstanding

20M 9.8M
Apr 01, 2024

10-K filing | 18.9M shares outstanding

19M 10M
Nov 14, 2023

10-Q filing | 18.5M shares outstanding

19M 11M
Sep 27, 2023

S-3/A filing: This is an S-3/A filing for the resale of common shares, pre-funded warrant shares, warrant shares and placement agent shares by selling shareholders and the placement agent.

19M 11M
Sep 27, 2023

S-3/A filing: ProMIS Neurosciences Inc. is filing a registration statement on Form S-3 for the proposed public offering of up to US$100,000,000 of any combination of common shares, preferred shares, debt securities, warrants, subscription receipts, and units.

19M 11M
Sep 22, 2023

S-3 filing: Promis Neurosciences Inc. files an S-3 form to register an offering of common shares, preferred shares, subscription receipts, and debt securities, with a total proposed amount of $100,000,000.

8.6M 21M
Sep 22, 2023

S-3 filing: This S-3 filing from Promis Neurosciences Inc. relates to the resale of up to 22,128,408 common shares by selling securityholders, including shares, shares underlying pre-funded warrants, common warrants and placement agent warrants.

8.6M 21M
Sep 22, 2023

POS AM filing: This prospectus relates to the issuance by us and the resale by the selling security holders named in this prospectus of up to an aggregate of 1,729,694 of our common shares.

19M 11M
Aug 22, 2023

8-K filing: ProMIS Neurosciences Inc. entered into a Unit Purchase Agreement to sell common share units and pre-funded units to PIPE Investors for approximately $20.4 million in gross proceeds, with the final closing expected on August 23, 2023. ($22.19M proceeds)

8.6M 0
Aug 14, 2023

10-Q filing | 8.6M shares outstanding

8.6M 0
May 15, 2023

10-Q filing | 8.6M shares outstanding

8.6M 0
Mar 17, 2023

POS AM filing: This is a prospectus for the issuance and resale of up to 1,729,694 common shares of ProMIS Neurosciences Inc.

8.6M 0
Mar 08, 2023

10-K filing | 8.6M shares outstanding

8.6M 350K
Nov 14, 2022

10-Q filing | 7.2M shares outstanding

7.2M 1.7M
Nov 08, 2022

S-1/A filing: This S-1/A filing relates to the issuance and resale of up to 1,729,694 common shares by selling shareholders, including shares issuable under a Unit Purchase Agreement and upon exercise of warrants.

8.6M 350K
Nov 04, 2022

S-1/A filing: This is an extraction of standardized offering data from an S-1/A filing, including private placements of units, common shares issued upon warrant exercises, and stock options granted.

8.6M 0
Nov 01, 2022

S-1 filing: This S-1 filing relates to the offering of 1,729,694 common shares by selling shareholders of ProMIS Neurosciences Inc.

8.6M 350K
Oct 17, 2022

8-K filing: ProMIS Neurosciences Inc. closed an offering of Units, each consisting of one common share and one-quarter of one warrant, with gross proceeds of approximately $7.47 million. ($7.47M proceeds)

7.2M 0
Aug 12, 2022

10-Q filing | 7.2M shares outstanding

7.2M 0
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