NASDAQ · PMNHealthcarePharmaceuticals

ProMIS Neurosciences Inc. Common Shares (ON) (PMN)

$3.52+3.23%
Close Nov 4, 2026 · split-adjusted
Nov 4, 2026$3.52▼ 65.35% in range
Nov 4, 2025Low $3.00 · High $24.79Nov 4, 2026
What changed · written from our data
As of Nov 4, 2026

ProMIS Neurosciences Inc. Common Shares (ON) closed at $3.52 on Nov 4, up 3.23%, 85.8% below its 52-week closing high. Volume of 517.0K shares was 1.54× its 20-day average (above normal).

Split-adjusted performance: -61.8% over one month, -68.0% over six months, -65.7% over one year.

Short interest was 245.8K shares at the Oct 15 settlement, up 3.0% from the prior report (3.3% of float, 7.1 days to cover).

Market cap$31.6M9.0M shares
Revenue · quarter$0.00—
Diluted EPS$-1.28—
P/E · TTM—
Net margin—
Dividend yieldNone
52-week range3.00 – 24.79−85.8% from high
Volume517.0K1.54× 20-day avg
Volatility · 60d262.2%Annualised
Short % of float3.3%7.1 days to cover
Net cash$53.5MCash $53.5M
Next earnings—Not scheduled
Split-adjusted performance
1W −68.2%1M −61.8%3M −73.6%6M −68.0%YTD −48.4%1Y −65.7%3Y −92.0%5Y —

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Pharmaceuticals

Percentile among 420 companies (100 = best)

6-month momentum13
Revenue growth—
Net margin—
Value (low P/E)—
Size26

Industry medians: 6-month return −25.5%, revenue growth +6.2%, net margin −33.8%, P/E 16.1×.

Short interest

Details →
Shares short245.8K+3.0% vs prior
Days to cover7.1Settled Oct 15
% of float3.3%
Short vol. 10d49.3%of daily volume

Closest peers by size in Pharmaceuticals

CompanyPriceToday6MRev. growthNet marginP/EMkt cap
PMNProMIS Neurosciences Inc. Common Shares (ON)$3.52+3.23%−68.0%———$31.6M
IXHLIncannex Healthcare Limited$2.49−0.60%−49.3%———$31.2MCompare
RMTIRockwell Medical, Inc. (DE)$8.05−0.49%−0.6%+10.6%−7.5%—$32.4MCompare
LITSLite Strategy$1.08+3.85%−9.2%———$32.8MCompare
ACETAdicet Bio$3.10−2.21%−63.7%———$29.0MCompare
IBOImpact BioMedical$4.10+1.99%−48.8%−57.1%−23300.0%44.4$35.0MCompare
NNVCNanoViricides$1.38−3.50%−5.5%———$35.2MCompare
BTMDBiote$1.23+9.82%−44.1%−9.5%−14.8%6.0$35.3MCompare
BYSIBeyondSpring$0.6790+9.34%−56.2%———$27.9MCompare

Quick answers

What does ProMIS Neurosciences Inc. Common Shares (ON) do?
ProMIS Neurosciences Inc is a clinical-stage biotechnology company focused on generating and developing antibody therapeutics selectively targeting toxic misfolded proteins in neurodegenerative diseases such as Alzheimers disease (AD), amyotrophic lateral sclerosis (ALS), and multiple system atrophy (MSA). The company applies its thermodynamic, computational discovery platform, ProMIS, and Collective Coordinates to predict novel targets known as Disease Specific Epitopes on the molecular surface of misfolded proteins.
What is PMN's market cap?
$31.57M, based on the Nov 4 close of $3.52.
Does ProMIS Neurosciences Inc. Common Shares (ON) pay a dividend?
No regular cash dividend has been paid in the last year.
How much of PMN is sold short?
245.8K shares, 3.3% of float, as of Oct 15, 2026.
What sector is PMN in?
Healthcare, in the Pharmaceuticals industry.

About ProMIS Neurosciences Inc. Common Shares (ON)

ProMIS Neurosciences Inc is a clinical-stage biotechnology company focused on generating and developing antibody therapeutics selectively targeting toxic misfolded proteins in neurodegenerative diseases such as Alzheimers disease (AD), amyotrophic lateral sclerosis (ALS), and multiple system atrophy (MSA). The company applies its thermodynamic, computational discovery platform, ProMIS, and Collective Coordinates to predict novel targets known as Disease Specific Epitopes on the molecular surface of misfolded proteins. Compnies product candidates are PMN310, PMN267, and PMN442. Lead product candidate is PMN310, a monoclonal antibody designed to treat AD by selectively targeting toxic, misfolded oligomers of amyloid-beta. PMN267 is companies second lead product candidate targeting ALS.

HQ: Toronto, A611 employeesListed Sep 30, 2005promisneurosciences.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology