ProMIS Neurosciences, Inc. (PMN) Ownership
PMN ownership summary
as of October 17, 2026- Institutions
- 77.2% of shares outstanding
- Insiders
- 11.87% of shares outstanding
- Shares outstanding
- 9.0M
- Float
- 4.4M shares available to trade
- Short interest
- 2.68% 239K shares short
- Days to cover
- 5.83 short interest down 0.6% vs prior month
- Institutions 77.20%
- Insiders 11.87%
- Other investors 10.93%
PMN top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | HHG PLC | 14.42% | 1.3M | $10.5M | +1.3M (0.0%) | March 31, 2026 |
| 2 | Jupiter Topco LLC | 14.42% | 1.3M | $10.5M | +1.3M (0.0%) | June 30, 2026 |
| 3 | Deep Track Capital, LP | 9.32% | 836K | $6.8M | — | June 30, 2026 |
| 4 | Wellington Management Company LLP | 7.77% | 696K | $5.7M | — | June 30, 2026 |
| 5 | Ally Bridge Group (NY) LLC | 6.92% | 620K | $5.1M | +206,100 (+49.8%) | June 30, 2026 |
| 6 | Trails Edge Capital Partners, LP | 6.21% | 557K | $4.5M | — | June 30, 2026 |
| 7 | Woodline Partners LP | 4.93% | 442K | $3.6M | +46,616 (+11.8%) | June 30, 2026 |
| 8 | Yu Fan | 3.68% | 330K | $2.7M | — | June 30, 2026 |
| 9 | Sphera Funds Management Ltd. | 3.63% | 326K | $2.7M | — | June 30, 2026 |
| 10 | Squadron Capital Management LLC | 3.62% | 325K | $2.6M | — | June 30, 2026 |
| 11 | Ikarian Capital, LLC | 2.29% | 205K | $1.7M | +150,000 (+272.7%) | June 30, 2026 |
| 12 | Ameriprise Financial Inc | 2.07% | 186K | $1.5M | +185,700 (0.0%) | June 30, 2026 |
| 13 | Adage Capital Partners Gp LLC | 1.83% | 164K | $1.3M | +25,000 (+18.0%) | June 30, 2026 |
| 14 | 683 Capital Management LLC | 1.04% | 93K | $756,728 | +92,850 (0.0%) | March 31, 2026 |
| 15 | ADAR1 Capital Management LLC | 1.04% | 93K | $756,728 | −2,500 (−2.6%) | June 30, 2026 |
| 16 | Great Point Partners LLC | 0.96% | 86K | $702,122 | −285,252 (−76.8%) | June 30, 2026 |
| 17 | BOOTHBAY FUND MANAGEMENT, LLC | 0.69% | 62K | $505,936 | +46,035 (+286.9%) | June 30, 2026 |
| 18 | Millennium Management LLC | 0.62% | 56K | $456,767 | −21,876 (−28.1%) | June 30, 2026 |
| 19 | Bank of Montreal | 0.13% | 11K | $92,674 | +11,371 (0.0%) | June 30, 2026 |
| 20 | BMO Capital Markets Corp. | 0.13% | 11K | $92,674 | +11,371 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 11 holders added 3.4M shares and 3 cut 310K.
PMN top mutual fund and ETF holders
1 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Nasdaq Composite Index | 0.01% | 485 | $3,953 | −5,332 (−91.7%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
PMN insider transactions
latest 6| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-22 | Patrick D Kirwin | Buy | $11.33 | 4,000 | $45,320 |
| 2026-03-04 | Eugene Williams | Buy | $24.00 | 2,000 | $48,000 |
| 2026-03-02 | Eugene Williams | Buy | $22.53 | 1,000 | $22,530 |
| 2026-02-19 | Johanne Kaplan | Buy | $15.35 | 1,629 | $25,005 |
| 2026-02-03 | Abg Management Ltd. | Buy | $12.13 | 700,741 | $8.5M |
| 2025-10-03 | Max A Milbury | Buy | $12.25 | 1,215 | $14,884 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
PMN shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns PMN
Institutional investors own 77.2% of ProMIS Neurosciences's shares and insiders 11.87%. The largest holder is HHG PLC with 14.42% of the shares (1.3M), as of March 31, 2026. Among the top 20 institutions, 11 added shares and 3 reduced their stake in the latest filings. Short interest is 2.68% of the float, or 5.83 days of average trading volume. The share count rose 3,703.0% since 2014.
Related: PMN analyst forecast, PMN key metrics. See the PMN stock overview for the latest quote and news.
PMN ownership FAQ
Who owns the most ProMIS Neurosciences stock?
The largest shareholders of ProMIS Neurosciences are HHG PLC (14.42%), Jupiter Topco LLC (14.42%), Deep Track Capital, LP (9.32%), Wellington Management Company LLP (7.77%), Ally Bridge Group (NY) LLC (6.92%).
What percentage of ProMIS Neurosciences is owned by institutions?
Institutions hold 77.2% of ProMIS Neurosciences's shares outstanding; insiders hold 11.87%.
Which funds own ProMIS Neurosciences?
The largest fund holders of ProMIS Neurosciences are Fidelity Nasdaq Composite Index (0.01%).
What is ProMIS Neurosciences's short interest?
239K shares of ProMIS Neurosciences were sold short, 2.68% of the float; at the average daily volume it would take 5.83 days to cover.
Are insiders buying or selling ProMIS Neurosciences?
Of the latest 6 reported insider transactions in ProMIS Neurosciences (since October 3, 2025), 6 were purchases and 0 were sales.
How many shares of ProMIS Neurosciences are outstanding?
ProMIS Neurosciences has 9.0M shares outstanding, of which 4.4M are in the public float.