Larry Douglas Altstiel - 22 Sep 2025 Form 4 Insider Report for ProMIS Neurosciences Inc. (PMN)

Role
Chief Medical Officer
Signature
/s/ Max A. Milbury, Attorney in Fact for Larry Altstiel
Issuer symbol
PMN
Transactions as of
22 Sep 2025
Net transactions value
$0
Form type
4
Filing time
24 Sep 2025, 08:45:58 UTC
Previous filing
20 Nov 2024
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
ALTSTIEL LARRY DOUGLAS Chief Medical Officer C/O 1920 YONGE ST, STE 200, TORONTO, ONTARIO, CANADA /s/ Max A. Milbury, Attorney in Fact for Larry Altstiel 24 Sep 2025 0001619444

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 PMN Option (right to buy) Award $0 +165,000 $0.000000 165,000 22 Sep 2025 Common Shares 165,000 $0.4500 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 25% of the shares subject to this option shall vest on September 1, 2026, and the balance shall vest ratably over 36 months