Security key
74346M406
PROMIS NEUROSCIENCES INC. - Common Shares, No Par Value per Share (PMN)
CUSIP: 74346M406
Q1 2024 13F Holders as of 31 Mar 2024
- Security type / class
- Equity / Common Shares, No Par Value per Share
- Total 13F shares
- 3,382,907
- Total 13F value
- $6,463,092
- Share change
- +34,285
- SEC-reported price per share
- $1.91
- Number of holders
- 16
- Value change
- +$75,871
- Number of buys
- 5
- Number of sells
- 6
- Shares outstanding
- 9,550,370
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2024
Institutions
16
Top holders
10
PMN full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
ProMIS Neurosciences Inc. SEC filings
ProMIS Neurosciences Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 74346M406
Recent filing periods:
Ownership snapshot
Top reported holders of PMN - PROMIS NEUROSCIENCES INC. - Common Shares, No Par Value per Share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
SPHERA FUNDS MANAGEMENT LTD.
Disclosed value leader
SPHERA FUNDS MANAGEMENT LTD.
Comparable rows
15/15
Latest evidence
31 Dec 2023
13F
Lead comparable stake: 19%
Showing 1-6 of 15 holder rows.
Quick read
SPHERA FUNDS MANAGEMENT LTD. leads the comparable SEC ownership view at 19%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens SPHERA FUNDS MANAGEMENT LTD.'s linked filing trail.
Comparable ownership
Top 5
SPHERA FUNDS MANAGEMENT LTD.
19%
Ally Bridge Group (NY) LLC
11%
Affinity Asset Advisors, LLC
2.8%
Northeast Financial Consultants Inc
1%
IEQ CAPITAL, LLC
0.32%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| SPHERA FUNDS MANAGEMENT LTD. |
13F
Company
|
19%
|
$2,109,148
1,834,042 shares
|
— | 31 Dec 2023 |
| Ally Bridge Group (NY) LLC |
13F
Company
|
11%
|
$1,226,675
1,066,674 shares
|
— | 31 Dec 2023 |
| Affinity Asset Advisors, LLC |
13F
Company
|
2.8%
|
$305,852
265,958 shares
|
— | 31 Dec 2023 |
| Northeast Financial Consultants Inc |
13F
Company
|
1%
|
$115,000
100,000 shares
|
— | 31 Dec 2023 |
| IEQ CAPITAL, LLC |
13F
Company
|
0.32%
|
$35,419
30,799 shares
|
— | 31 Dec 2023 |
| FIDUCIARY TRUST CO |
13F
Company
|
0.21%
|
$23,009
20,008 shares
|
— | 31 Dec 2023 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2024
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
16
Shares
3,382,907
Rows available
16
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2024 vs Q3 2025 Across Filers
Q3 2025 holders
23
Q1 2024 holders
16
Holder diff
-7
| Investor | Q3 2025 Shares | Q1 2024 Shares | Share Diff | Share Chg % | Q3 2025 value | Q1 2024 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend