PROMIS NEUROSCIENCES INC (PMN) Institutional Ownership Changes & 13F Activity
PROMIS NEUROSCIENCES INC (PMN). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Janus Henderson Group Plc, Deep Track Capital, Lp, Wellington Management Group Llp, Trails Edge Capital Partners, Lp, and Woodline Partners Lp.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Yu Fan | Buy | +329,760 | — | 329,760 | $4.19M | Q1 2026 | May 18, 2026 |
| Ally Bridge Group (Ny) Llc | Buy | +164,880 | +66.1% | 414,219 | $5.26M | Q1 2026 | May 18, 2026 |
| Adar1 Capital Management, Llc | Buy | +95,350 | — | 95,350 | $1.21M | Q1 2026 | May 18, 2026 |
| Janus Henderson Group Plc | Buy | +1,292,757 | — | 1,292,757 | $16.42M | Q1 2026 | May 15, 2026 |
| Deep Track Capital, Lp | Buy | +835,655 | — | 835,655 | $10.61M | Q1 2026 | May 15, 2026 |
| Wellington Management Group Llp | Buy | +696,378 | — | 696,378 | $8.84M | Q1 2026 | May 15, 2026 |
| Trails Edge Capital Partners, Lp | Buy | +557,103 | — | 557,103 | $7.08M | Q1 2026 | May 15, 2026 |
| Woodline Partners Lp | Buy | +395,295 | — | 395,295 | $5.02M | Q1 2026 | May 15, 2026 |
| Great Point Partners Llc | Buy | +371,402 | — | 371,402 | $4.72M | Q1 2026 | May 15, 2026 |
| Squadron Capital Management Llc | Buy | +324,977 | — | 324,977 | $4.13M | Q1 2026 | May 15, 2026 |
| Sphera Funds Management Ltd. | Buy | +313,784 | +2657.6% | 325,591 | $4.14M | Q1 2026 | May 15, 2026 |
| Adage Capital Partners Gp, L.L.C. | Buy | +139,275 | — | 139,275 | $1.77M | Q1 2026 | May 15, 2026 |
| 683 Capital Management, Llc | Buy | +92,850 | — | 92,850 | $1.18M | Q1 2026 | May 15, 2026 |
| Millennium Management Llc | Buy | +77,921 | — | 77,921 | $989.60K | Q1 2026 | May 15, 2026 |
| Ikarian Capital, Llc | Buy | +55,000 | — | 55,000 | $698.50K | Q1 2026 | May 15, 2026 |
| Heights Capital Management, Inc | Buy | +50,660 | — | 50,660 | $643.38K | Q1 2026 | May 15, 2026 |
| Boothbay Fund Management, Llc | Buy | +16,043 | — | 16,043 | $203.75K | Q1 2026 | May 15, 2026 |
| Seven Fleet Capital Management Lp | Buy | +10,600 | — | 10,600 | $134.62K | Q1 2026 | May 15, 2026 |
| Royal Bank Of Canada | Buy | +50 | +22.9% | 268 | $4.00K | Q1 2026 | May 15, 2026 |
| Federation Des Caisses Desjardins Du Quebec | Sell | -320 | -97.0% | 10 | $127.00 | Q1 2026 | May 14, 2026 |
| Td Waterhouse Canada Inc. | Sell | -20 | -80.0% | 5 | $65.00 | Q1 2026 | May 12, 2026 |
| Empery Asset Management, Lp | Buy | +60,353 | — | 60,353 | $766.48K | Q1 2026 | May 08, 2026 |
| Steward Partners Investment Advisory, Llc | Buy | +100 | — | 100 | $1.27K | Q1 2026 | May 08, 2026 |
| Ubs Group Ag | Sell | -150 | -10.3% | 1,300 | $16.51K | Q1 2026 | May 05, 2026 |
| Tower Research Capital Llc (Trc) | Sell | -20 | -100.0% | 0 | $0.00 | Q1 2026 | Feb 17, 2026 |
| Disciplined Equity Management, Inc. | Sell | -1,000 | -100.0% | 0 | $0.00 | Q1 2026 | Jan 14, 2026 |
Frequently asked questions about PMN activity
Which institutional owners are buying PMN?
Institutional owners buying PMN include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in PMN activity?
"Buy" means an investor increased their reported position in PMN compared to the prior reporting period. This reflects growing exposure to PROMIS NEUROSCIENCES INC (PMN) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in PMN increasing?
Institutional interest in PMN can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related PMN Institutional Insights
- PMN Overview
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- Institutional Portfolio Overlap & Shared Holdings
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- PMN Insider Trading & SEC Form 4 Activity
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