Wellington Biomedical Innovation Master Investors (Cayman) II L.P. - 11 Mar 2026 SCHEDULE 13G Report for ProMIS Neurosciences, Inc. Common Stock (PMN)

Filing Manager: Wellington Biomedical Innovation Master Investors (Cayman) II L.P.
Reporting Manager: Wellington Biomedical Innovation Master Investors (Cayman) II, L.P.
Security: ProMIS Neurosciences, Inc. Common Stock
Symbol: PMN
Shares outstanding: 8,967,738 shares
Disclosed Ownership: 895,877 shares
Ownership: 10%
Form type: SCHEDULE 13G
Filing time: 18 Mar 2026, 12:26:11 UTC
Date of event: 11 Mar 2026
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Wellington Biomedical Innovation Master Investors (Cayman) II, L.P.	10%	895,877	0	895,877	Ihsan Speede	Authorized Person