Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
ABG Management Ltd. - 03 Feb 2026 SCHEDULE 13D/A Report for ProMIS Neurosciences Inc. Common Shares, no par value per share (PMN)
- Filing manager
- ABG Management Ltd.
- Reporting owner
- Fan Yu
- Beneficially owned shares
- 1,644,397 shares
- Large-stake signal
-
Ownership
17%Beneficial ownership of this reported class.
Shares
1,644,397 sharesShares beneficially owned as disclosed.
Event date
03 Feb 2026Date tied to the ownership event or amendment.
Accepted by SEC
05 Feb 2026EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 17%
- Symbol
- PMN
- Shares outstanding
- 9,672,924 shares
- SEC form
- SCHEDULE 13D/A
- Accepted by SEC
- 05 Feb 2026, 19:02:35 UTC
- Event date
- 03 Feb 2026
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
2 source fields
Source evidence
Original filing metadata and source links for verification.
4 source fields
Key filing fact
ABG Management Ltd. disclosed 17% ownership in ProMIS Neurosciences Inc. Common Shares, no par value per share (PMN) on 03 Feb 2026.
Key facts
- ABG Management Ltd. filed SCHEDULE 13D/A for ProMIS Neurosciences Inc. Common Shares, no par value per share (PMN).
- Disclosed ownership: 17%.
- Date of event: 03 Feb 2026.
Change
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 05 Feb 2026, 19:02.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (9)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| ABG Management Ltd. | 6.3% | 572,677 | 0 | 572,677 | By: /s/ Fan Yu | Fan Yu, Director | 0001832106 |
| Ally Bridge Group (NY) LLC | 6.3% | 572,677 | 0 | 572,677 | By: ABG Management Ltd., its managing member, By: /s/ Fan Yu | Fan Yu, Director | 0001822947 |
| Ally Bridge MedAlpha Master Fund L.P. | 6.3% | 572,677 | 0 | 572,677 | By: Ally Bridge Group (NY) LLC, its manager, By: ABG Management Ltd., its managing member, By: /s/ Fan Yu | Fan Yu, Director | 0001831963 |
| ABG V-SIV IX Limited | 7.1% | 659,520 | 0 | 659,520 | By: ABG Global Life Science Capital Partners V GP, L.P., ABG Global Life Science Capital Partners V GP Limited, /s/ Fan Yu | Fan Yu, Director | |
| Ally Bridge Group Global Life Science Capital Partners V, L.P. | 7.1% | 659,520 | 0 | 659,520 | By: ABG Global Life Science Capital Partners V GP, L.P., its GP, By: ABG Global Life Science Capital Partners V GP Limited, its GP, By: /s/ Fan Yu | Fan Yu, Director | |
| ABG Global Life Science Capital Partners V GP, L.P. | 7.1% | 659,520 | 0 | 659,520 | By: ABG Global Life Science Capital Partners V GP Limited, its general partner, By: /s/ Fan Yu | Fan Yu, Director | |
| ABG Global Life Science Capital Partners V GP Limited | 7.1% | 659,520 | 0 | 659,520 | By: /s/ Fan Yu | Fan Yu, Director | |
| ABG V-SIV X Limited | 4.5% | 412,200 | 0 | 412,200 | By: /s/ Fan Yu | Fan Yu, Director | |
| Fan Yu | 17% | 1,644,397 | 0 | 1,644,397 | /s/ Fan Yu | Fan Yu | 0001668029 |
CIK / CUSIP context first