PROMIS NEUROSCIENCES INC (PMN) Institutional Shareholders
PROMIS NEUROSCIENCES INC (PMN) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $83.66M in PMN holdings during the latest filing period.
Janus Henderson Group Plc is currently the largest disclosed institutional shareholder of PMN tracked by InsiderSet, reporting ownership valued at approximately $16.42M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $18.11M, representing an estimated gain of +10.31% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 88% of the total disclosed PMN value among the investors covered in this analysis. Major shareholders include Janus Henderson Group Plc, Deep Track Capital, Lp, Wellington Management Group Llp, and several other long-term asset managers with concentrated positions in PROMIS NEUROSCIENCES INC (PMN).
This page ranks the largest institutional PMN shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
27
Total Reported Value
$83.66M
Largest Holder
Janus Henderson Group Plc
Largest Position
$16.42M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
31
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Janus Henderson Group Plc | 0.01% | 1,292,757 | $16,418,014 | $18,111,526 | +$1,693,512 | +10.31% | |
| Deep Track Capital, Lp | 0.16% | 835,655 | $10,997,220 | $11,707,527 | +$710,307 | +6.46% | |
| Wellington Management Group Llp | 0.00% | 696,378 | $9,164,334 | $9,756,256 | +$591,922 | +6.46% | |
| Ally Bridge Group (Ny) Llc | 10.52% | 620,319 | $8,163,398 | $8,690,669 | +$527,271 | +6.46% | |
| Trails Edge Capital Partners, Lp | 1.16% | 557,103 | $7,331,475 | $7,805,013 | +$473,538 | +6.46% | |
| Woodline Partners Lp | 0.02% | 441,911 | $5,815,548 | $6,191,173 | +$375,625 | +6.46% | |
| Yu Fan | 4.02% | 329,760 | $4,339,642 | $4,619,938 | +$280,296 | +6.46% | |
| Sphera Funds Management Ltd. | 0.61% | 325,591 | $4,284,784 | $4,561,530 | +$276,746 | +6.46% | |
| Squadron Capital Management Llc | 1.46% | 324,977 | $4,276,697 | $4,552,928 | +$276,231 | +6.46% | |
| Ikarian Capital, Llc | 0.44% | 205,000 | $2,697,801 | $2,872,050 | +$174,249 | +6.46% | |
| Ameriprise Financial Inc | 0.00% | 185,700 | $2,443,812 | $2,601,657 | +$157,845 | +6.46% | |
| Adage Capital Partners Gp, L.L.C. | 0.00% | 164,275 | $2,161,859 | $2,301,493 | +$139,634 | +6.46% | |
| 683 Capital Management, Llc | 0.11% | 95,000 | $1,250,200 | $1,330,950 | +$80,750 | +6.46% | |
| Adar1 Capital Management, Llc | 0.06% | 92,850 | $1,221,906 | $1,300,829 | +$78,923 | +6.46% | |
| Great Point Partners Llc | 0.27% | 86,150 | $1,133,734 | $1,206,962 | +$73,228 | +6.46% | |
| Boothbay Fund Management, Llc | 0.02% | 62,078 | $816,946 | $869,713 | +$52,767 | +6.46% | |
| Millennium Management Llc | 0.00% | 56,045 | $737,552 | $785,190 | +$47,638 | +6.46% | |
| Bank Of Montreal | 0.00% | 11,371 | $149,642 | $159,308 | +$9,666 | +6.46% | |
| Seven Fleet Capital Management Lp | 0.02% | 10,600 | $139,496 | $148,506 | +$9,010 | +6.46% | |
| Morgan Stanley | 0.00% | 7,559 | $99,476 | $105,902 | +$6,426 | +6.46% | |
| Ubs Group Ag | 0.00% | 691 | $9,093 | $9,681 | +$588 | +6.47% | |
| Osaic Holdings, Inc. | 0.00% | 360 | $4,737 | $5,044 | +$307 | +6.47% | |
| Royal Bank Of Canada | 0.00% | 218 | $3,000 | $3,054 | +$54 | +1.81% | |
| Steward Partners Investment Advisory, Llc | 0.00% | 94 | $1,237 | $1,317 | +$80 | +6.46% | |
| Federation Des Caisses Desjardins Du Quebec | 0.00% | 10 | $131 | $140 | +$9 | +6.95% | |
| Td Waterhouse Canada Inc. | 0.00% | 5 | $66 | $70 | +$4 | +6.14% | |
| Caitong International Asset Management Co., Ltd | 0.00% | 3 | $39 | $42 | +$3 | +7.77% |
Frequently asked questions about PMN
Who owns the most PMN stock?
The largest holders of PMN are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for PROMIS NEUROSCIENCES INC (PMN).
Is PMN widely held by superinvestors?
Many widely followed stocks like PMN appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly PMN is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.