ProMIS Neurosciences (PMN)
ProMIS Neurosciences on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as pharmaceutical preparations.
246K
Short interest
settlement 2026-10-15
7.1
Days to cover
unchanged vs prior
59.1%
Short share of volume
2026-11-02
1,392
Fails to deliver
settlement 2026-10-14
Thu 12 Nov
Next earnings
estimated date
$30K
Insider flow, 90 days
1 buys, 0 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in PMN is 245,838 shares, up 5,838 shares over the last month. Over the last 48 readings it ranged from 19,026 shares (30 January 2026) to 1,767,412 shares (15 July 2025). At the reported average volume of 34K shares a day that is 7.1 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/pmn" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 245,838 | +3.0% | 34,430 | 7.14 |
| 2026-09-30 | 238,584 | -0.6% | 33,526 | 7.12 |
| 2026-09-15 | 240,000 | -9.0% | 49,944 | 4.81 |
| 2026-08-31 | 263,744 | -6.2% | 28,029 | 9.41 |
| 2026-08-14 | 281,134 | -0.9% | 26,135 | 10.76 |
| 2026-07-31 | 283,726 | +20.3% | 267,082 | 1.06 |
| 2026-07-15 | 235,779 | +15.6% | 75,219 | 3.13 |
| 2026-06-30 | 203,926 | +1.5% | 42,090 | 4.84 |
| 2026-06-15 | 200,865 | +6.4% | 19,570 | 10.26 |
| 2026-05-29 | 188,790 | +13.3% | 22,074 | 8.55 |
| 2026-05-15 | 166,588 | +17.9% | 35,869 | 4.64 |
| 2026-04-30 | 141,242 | +2.3% | 42,014 | 3.36 |
| 2026-04-15 | 138,078 | -19.9% | 43,159 | 3.20 |
| 2026-03-31 | 172,334 | +27.2% | 34,571 | 4.98 |
| 2026-03-13 | 135,444 | +31.6% | 59,773 | 2.27 |
| 2026-02-27 | 102,963 | -19.5% | 49,605 | 2.08 |
| 2026-02-13 | 127,864 | +572.0% | 74,393 | 1.72 |
| 2026-01-30 | 19,026 | -2.1% | 761,894 | 1.00 |
| 2026-01-15 | 19,430 | -14.8% | 13,340 | 1.46 |
| 2025-12-31 | 22,817 | -34.9% | 22,760 | 1.00 |
| 2025-12-15 | 35,040 | +15.4% | 33,915 | 1.03 |
| 2025-11-28 | 30,357 | -84.3% | 54,579 | 1.00 |
| 2025-11-14 | 193,528 | -30.2% | 383,674 | 1.00 |
| 2025-10-31 | 277,227 | +49.5% | 454,626 | 1.00 |
| 2025-10-15 | 185,467 | -42.1% | 1,124,965 | 1.00 |
| 2025-09-30 | 320,372 | -40.9% | 575,783 | 1.00 |
| 2025-09-15 | 542,277 | +949.4% | 5,898,870 | 1.00 |
| 2025-08-29 | 51,676 | -23.1% | 340,416 | 1.00 |
| 2025-08-15 | 67,218 | -86.4% | 855,355 | 1.00 |
| 2025-07-31 | 493,000 | -72.1% | 27,178,136 | 1.00 |
| 2025-07-15 | 1,767,412 | +1151.1% | 10,114,772 | 1.00 |
| 2025-06-30 | 141,264 | -0.1% | 28,722 | 4.92 |
| 2025-06-13 | 141,413 | -15.8% | 50,113 | 2.82 |
| 2025-05-30 | 167,981 | +20.5% | 42,862 | 3.92 |
| 2025-05-15 | 139,360 | -38.5% | 70,113 | 1.99 |
| 2025-04-30 | 226,778 | +21.3% | 33,993 | 6.67 |
| 2025-04-15 | 186,949 | +4.7% | 41,926 | 4.46 |
| 2025-03-31 | 178,585 | -10.9% | 19,475 | 9.17 |
| 2025-03-14 | 200,508 | +30.1% | 30,041 | 6.67 |
| 2025-02-28 | 154,088 | -20.9% | 63,693 | 2.42 |
| 2025-02-14 | 194,777 | -22.3% | 39,289 | 4.96 |
| 2025-01-31 | 250,608 | +18.3% | 46,912 | 5.34 |
| 2025-01-15 | 211,920 | -6.1% | 56,239 | 3.77 |
| 2024-12-31 | 225,720 | +37.4% | 69,545 | 3.25 |
| 2024-12-13 | 164,294 | +6.3% | 89,619 | 1.83 |
| 2024-11-29 | 154,564 | -22.8% | 43,665 | 3.54 |
| 2024-11-15 | 200,127 | -16.5% | 34,821 | 5.75 |
| 2024-10-31 | 239,785 | +74.0% | 120,004 | 2.00 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of PMN volume is 59.1%, up 36.7 points over the last five sessions. Over the last 30 readings it ranged from 21.8% (16 October 2026) to 80.0% (27 October 2026). The latest reading is 16.7 points above the 30-session average of 42.4%, on 2.1M shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 1.3M | 2.1M | 59.1% | 246,264 |
| 2026-10-30 | 391K | 748K | 52.3% | 73,742 |
| 2026-10-29 | 10K | 28K | 37.2% | 0 |
| 2026-10-28 | 14K | 26K | 51.6% | 0 |
| 2026-10-27 | 17K | 21K | 80.0% | 0 |
| 2026-10-26 | 2K | 10K | 22.4% | 0 |
| 2026-10-23 | 2K | 4K | 41.2% | 0 |
| 2026-10-22 | 712 | 1K | 50.7% | 0 |
| 2026-10-21 | 2K | 3K | 68.2% | 0 |
| 2026-10-20 | 3K | 10K | 27.6% | 0 |
| 2026-10-19 | 1K | 4K | 32.0% | 0 |
| 2026-10-16 | 2K | 11K | 21.8% | 0 |
| 2026-10-15 | 4K | 9K | 48.9% | 0 |
| 2026-10-14 | 3K | 8K | 30.8% | 39 |
| 2026-10-13 | 2K | 9K | 28.0% | 0 |
| 2026-10-12 | 2K | 5K | 31.5% | 0 |
| 2026-10-09 | 788 | 3K | 23.4% | 0 |
| 2026-10-08 | 6K | 19K | 28.5% | 0 |
| 2026-10-07 | 5K | 9K | 54.0% | 0 |
| 2026-10-06 | 6K | 12K | 49.8% | 0 |
| 2026-10-05 | 5K | 15K | 36.2% | 0 |
| 2026-10-02 | 9K | 15K | 60.6% | 1,144 |
| 2026-10-01 | 13K | 29K | 43.3% | 676 |
| 2026-09-30 | 3K | 5K | 60.0% | 0 |
| 2026-09-29 | 2K | 4K | 46.8% | 0 |
| 2026-09-28 | 3K | 10K | 32.3% | 0 |
| 2026-09-25 | 2K | 4K | 47.6% | 102 |
| 2026-09-24 | 8K | 19K | 41.2% | 750 |
| 2026-09-23 | 2K | 5K | 35.8% | 121 |
| 2026-09-22 | 2K | 7K | 29.7% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 14 October 2026, the fails-to-deliver balance in PMN is 1,392 shares, down 787 shares over the last settlement date. Over the last 30 readings it ranged from 5 shares (28 August 2026) to 178,670 shares (30 July 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-14 | 1,392 | $8.66 | $12K |
| 2026-10-13 | 2,179 | $9.55 | $21K |
| 2026-10-09 | 2,119 | $9.24 | $20K |
| 2026-10-08 | 1,734 | $9.12 | $16K |
| 2026-10-07 | 1,141 | $9.21 | $11K |
| 2026-10-06 | 1,875 | $9.37 | $18K |
| 2026-10-05 | 479 | $9.40 | $5K |
| 2026-09-23 | 180 | $13.49 | $2K |
| 2026-09-21 | 382 | $14.01 | $5K |
| 2026-09-15 | 620 | $13.26 | $8K |
| 2026-09-14 | 265 | $13.56 | $4K |
| 2026-09-10 | 5,804 | $14.37 | $83K |
| 2026-09-04 | 52 | $12.90 | $671 |
| 2026-08-28 | 5 | $13.99 | $70 |
| 2026-08-27 | 463 | $14.46 | $7K |
| 2026-08-25 | 67 | $14.80 | $992 |
| 2026-08-24 | 302 | $14.51 | $4K |
| 2026-08-21 | 901 | $14.91 | $13K |
| 2026-08-20 | 85 | $14.66 | $1K |
| 2026-08-19 | 384 | $14.98 | $6K |
| 2026-08-18 | 49 | $14.66 | $718 |
| 2026-08-17 | 636 | $14.86 | $9K |
| 2026-08-14 | 287 | $14.79 | $4K |
| 2026-08-13 | 196 | $14.50 | $3K |
| 2026-08-10 | 522 | $14.71 | $8K |
| 2026-08-07 | 484 | $13.33 | $6K |
| 2026-08-04 | 195 | $14.14 | $3K |
| 2026-08-03 | 518 | $13.72 | $7K |
| 2026-07-31 | 1,938 | $14.92 | $29K |
| 2026-07-30 | 178,670 | $14.06 | $2.5M |
Insider trades
SEC Form 4, newest first. JSONInsiders at PMN reported 1 open-market buy worth $30K in the last 90 days and no open-market sells. Latest filing: Kaplan Johanne (Chief Development Officer) on 2026-08-05.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-08-05 | Kaplan Johanne | Chief Development Officer | Buy | 2K | $13.30 | $30K | 6K |
| 2026-04-22 | Kirwin Patrick D. | Director | Buy | 4K | $11.33 | $45K | 5K |
| 2026-03-05 | Williams Eugene | Director | Buy | 2K | $24.40 | $49K | 12K |
| 2026-03-04 | Williams Eugene | Director | Buy | 2K | $24.00 | $48K | 10K |
| 2026-03-03 | Williams Eugene | Director | Buy | 1K | $21.89 | $22K | 8K |
| 2026-03-02 | Williams Eugene | Director | Buy | 1K | $22.53 | $23K | 7K |
| 2026-02-19 | Kaplan Johanne | Chief Development Officer | Buy | 2K | $15.35 | $25K | 4K |
| 2026-02-03 | Yu Fan | TenPercentOwner | Buy | 701K | $12.13 | $8.5M | 943K |
| 2026-02-03 | Warma Neil K | Chief Executive Officer | Grant | 6K | $12.13 | $75K | 6K |
| 2026-02-03 | Milbury Max A. | Principal Accounting Officer | Grant | 7K | $12.13 | $80K | 8K |
| 2026-02-03 | Kirwin Patrick D. | Director | Grant | 3K | $12.13 | $37K | 5K |
| 2026-02-03 | Kaplan Johanne | Chief Development Officer | Grant | 2K | $12.13 | $25K | 2K |
| 2026-02-03 | Cashman Neil | Chief Scientific Officer | Grant | 4K | $12.13 | $50K | 4K |
| 2026-02-03 | ABG Management Ltd. | 10% owner | Buy | 701K | $12.13 | $8.5M | 943K |
| 2025-10-03 | Milbury Max A. | Principal Accounting Officer | Buy | 30K | $0.49 | $15K | 45K |
| 2025-07-25 | GORDON MICHAEL S | 10% owner | Exercise (in or at the money) | 120K | price not stated in the filing | not stated | 2.3M |
| 2025-07-25 | GORDON MICHAEL S | 10% owner | Exercise (in or at the money) | 120K | price not stated in the filing | not stated | 2.2M |
| 2025-07-25 | Title 19 Promis | 10% owner | Exercise (in or at the money) | 120K | price not stated in the filing | not stated | 2.4M |
| 2025-07-25 | Title 19 Promis | 10% owner | Exercise (in or at the money) | 120K | price not stated in the filing | not stated | 2.3M |
| 2025-07-25 | Sclar Jeremy M. | 10% owner | Exercise (in or at the money) | 698K | price not stated in the filing | not stated | 3.7M |
| 2025-07-25 | Sclar Jeremy M. | 10% owner | Exercise (in or at the money) | 698K | price not stated in the filing | not stated | 2.3M |
| 2025-07-25 | Jeremy M. Sclar 2012 Irrevocable Family Trust | 10% owner | Exercise (in or at the money) | 698K | price not stated in the filing | not stated | 3.0M |
| 2025-07-25 | Jeremy M. Sclar 2012 Irrevocable Family Trust | 10% owner | Exercise (in or at the money) | 698K | price not stated in the filing | not stated | 2.3M |
| 2025-07-25 | Title 19 Promis | TenPercentOwner | Exercise (in or at the money) | 120K | price not stated in the filing | not stated | 2.2M |
| 2025-07-25 | GORDON MICHAEL S | TenPercentOwner | Exercise (in or at the money) | 120K | price not stated in the filing | not stated | 2.4M |
| 2025-07-25 | Sclar Jeremy M. | TenPercentOwner | Exercise (in or at the money) | 698K | price not stated in the filing | not stated | 3.0M |
| 2025-07-25 | Jeremy M. Sclar 2012 Irrevocable Family Trust | TenPercentOwner | Exercise (in or at the money) | 698K | price not stated in the filing | not stated | 3.7M |
| 2025-06-30 | GORDON MICHAEL S | TenPercentOwner | Sell | 93K | price not stated in the filing | not stated | 0 |
| 2025-03-13 | GORDON MICHAEL S | Other | Other transaction | 48K | price not stated in the filing | not stated | 0 |
| 2025-02-10 | Cashman Neil | Chief Scientific Officer | Buy | 15K | $0.97 | $15K | 17K |
| 2024-09-24 | Shafmaster Madge K. | Director | Buy | 70K | $1.30 | $91K | 208K |
| 2024-09-23 | Shafmaster Madge K. | Director | Buy | 70K | $1.28 | $90K | 138K |
| 2024-09-20 | Shafmaster Madge K. | Director | Buy | 60K | $1.25 | $75K | 68K |
| 2024-09-17 | GORDON MICHAEL S | TenPercentOwner | Buy | 16K | $1.40 | $23K | 93K |
| 2024-09-16 | GORDON MICHAEL S | TenPercentOwner | Buy | 77K | $1.22 | $94K | 77K |
| 2024-08-14 | Kirwin Patrick D. | Director | Buy | 10K | $1.25 | $13K | 63K |
| 2024-07-31 | Sclar Jeremy M. | 10% owner | Conversion | 150K | price not stated in the filing | not stated | 1.2M |
| 2024-07-31 | Sclar Jeremy M. | TenPercentOwner | Buy | 698K | $2.15 | $1.5M | 1.5M |
| 2024-07-31 | Sclar Jeremy M. | TenPercentOwner | Conversion | 150K | price not stated in the filing | not stated | 1.6M |
| 2024-07-31 | GORDON MICHAEL S | TenPercentOwner | Conversion | 500K | price not stated in the filing | not stated | 2.1M |
| 2024-07-31 | GORDON MICHAEL S | TenPercentOwner | Buy | 465K | $2.15 | $1000K | 1.6M |
| 2024-07-31 | Title 19 Promis | TenPercentOwner | Buy | 465K | $2.15 | $1000K | 1.6M |
| 2024-07-31 | Title 19 Promis | TenPercentOwner | Conversion | 500K | price not stated in the filing | not stated | 2.1M |
| 2023-08-23 | Kirwin Patrick D. | Director | Grant | 11K | price not stated in the filing | not stated | 53K |
| 2023-08-23 | Milbury Max A. | Principal Accounting Officer | Grant | 13K | price not stated in the filing | not stated | 15K |
| 2023-08-23 | Cashman Neil | Chief Scientific Officer | Grant | 11K | price not stated in the filing | not stated | 113K |
| 2023-08-23 | Malenfant Gavin T. | Chief Operating Officer | Grant | 3K | price not stated in the filing | not stated | 3K |
| 2023-08-23 | Farfel Gail M | Chief Executive Officer | Grant | 53K | price not stated in the filing | not stated | 55K |
| 2022-12-16 | Williams Eugene | Director | Buy | 1K | $4.64 | $5K | 160K |
| 2022-12-16 | Williams Eugene | Director | Buy | 1K | $4.65 | $5K | 159K |
| 2022-12-15 | Kirwin Patrick D. | Director | Buy | 2K | $4.51 | $9K | 28K |
| 2022-12-14 | Farfel Gail M | Chief Executive Officer | Buy | 1K | $4.94 | $5K | 2K |
| 2022-12-13 | Kirwin Patrick D. | Director | Buy | 1K | $4.87 | $5K | 26K |
| 2022-12-12 | Williams Eugene | Director | Buy | 1K | $5.08 | $5K | 158K |
| 2022-12-09 | Kirwin Patrick D. | Director | Buy | 1K | $4.98 | $5K | 25K |
| 2022-12-07 | Williams Eugene | Director | Buy | 1K | $5.49 | $5K | 157K |
| 2022-12-06 | Farfel Gail M | Chief Executive Officer | Buy | 1K | $5.70 | $6K | 1K |
| 2022-12-02 | Williams Eugene | Director | Buy | 1K | $5.98 | $6K | 156K |
| 2022-08-17 | Kirwin Patrick D. | Director | Buy | 4K | $5.92 | $24K | 42K |
| 2022-07-11 | Williams Eugene | Chairman and CEO | Buy | 1K | $9.80 | $10K | 155K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON28 holders report 5% or more of PMN in their latest filing, 8 on Schedule 13D (active intent). The largest reported stake is Fan Yu at 17.0% of the class (1,644,397 shares), filed 2026-02-05 for an event on 2026-02-03.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-14 | 13G/Ano. 1 | Great Point Partners, LLCinvestment adviser, other entity | 737K | 7.7% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Dr. Jeffrey R. Jay, M.D.parent holding company, individual | 737K | 7.7% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Ms. Lillian Nordahlparent holding company, individual | 737K | 7.7% | 2026-06-30 |
| 2026-08-13 | 13G/Ano. 1 | Wellington Biomedical Innovation Master Investors (Cayman) II, L.P.partnership | 696K | 7.8% | 2026-06-30 |
| 2026-08-13 | 13G/Ano. 1 | Wellington Management Group LLPparent holding company | 696K | 7.8% | 2026-06-30 |
| 2026-08-13 | 13G/Ano. 1 | Wellington Group Holdings LLPparent holding company | 696K | 7.8% | 2026-06-30 |
| 2026-08-13 | 13G/Ano. 1 | Wellington Investment Advisors Holdings LLPparent holding company | 696K | 7.8% | 2026-06-30 |
| 2026-08-13 | 13G/Ano. 1 | Wellington Management Company LLPinvestment adviser | 696K | 7.8% | 2026-06-30 |
| 2026-05-07 | 13G/Ano. 5 | Title 19 Promisother entity | 182K | 2.0% | 2026-03-31 |
| 2026-05-07 | 13G/Ano. 5 | Michael S. Gordonindividual | 182K | 2.0% | 2026-03-31 |
| 2026-04-07 | 13G | JANUS HENDERSON GROUP PLCparent holding company | 1.3M | 14.4% | 2026-03-31 |
| 2026-02-17 | 13G/Ano. 4 | Steven Boydparent holding company, individual | 505K | 0.9% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 4 | Armistice Capital, LLCinvestment adviser, other entity | 505K | 0.9% | 2025-12-31 |
| 2026-02-10 | 13G | Trails Edge Biotechnology Master Fund, LPpartnership | 933K | 9.9% | 2026-02-03 |
| 2026-02-10 | 13G | Ortav Yehudaiindividual | 933K | 9.9% | 2026-02-03 |
| 2026-02-10 | 13G | Trails Edge Capital Partners, LPinvestment adviser, partnership | 933K | 9.9% | 2026-02-03 |
| 2026-02-06 | 13G | David Kroinparent holding company, individual | 903K | 10.0% | 2026-01-30 |
| 2026-02-06 | 13G | Deep Track Capital, LPinvestment adviser, other entity | 903K | 10.0% | 2026-01-30 |
| 2026-02-06 | 13G | Deep Track Biotechnology Master Fund, Ltd.corporation | 703K | 7.8% | 2026-01-30 |
| 2026-02-06 | 13G | Deep Track Special Opportunities Fund, LP.partnership | 199K | 2.2% | 2026-01-30 |
| 2026-02-05 | 13D/Ano. 2 | Fan Yuindividual | 1.6M | 17.0% | 2026-02-03 |
| 2026-02-05 | 13D/Ano. 2 | Ally Bridge Group Global Life Science Capital Partners V, L.P.partnership | 660K | 7.1% | 2026-02-03 |
| 2026-02-05 | 13D/Ano. 2 | ABG Global Life Science Capital Partners V GP, L.P.partnership | 660K | 7.1% | 2026-02-03 |
| 2026-02-05 | 13D/Ano. 2 | ABG Global Life Science Capital Partners V GP Limitedcorporation | 660K | 7.1% | 2026-02-03 |
| 2026-02-05 | 13D/Ano. 2 | ABG V-SIV IX Limitedcorporation | 660K | 7.1% | 2026-02-03 |
| 2026-02-05 | 13D/Ano. 2 | Ally Bridge MedAlpha Master Fund L.P.partnership | 573K | 6.3% | 2026-02-03 |
| 2026-02-05 | 13D/Ano. 2 | ABG Management Ltd.corporation | 573K | 6.3% | 2026-02-03 |
| 2026-02-05 | 13D/Ano. 2 | Ally Bridge Group (NY) LLCother entity | 573K | 6.3% | 2026-02-03 |
| 2026-02-05 | 13D/Ano. 2 | ABG V-SIV X Limitedcorporation | 412K | 4.5% | 2026-02-03 |
| 2026-02-05 | 13G/Ano. 3 | Sphera Global Healthcare GP Ltd.corporation | 181K | 7.8% | 2025-12-31 |
| 2026-02-05 | 13G/Ano. 3 | Sphera Global Healthcare Management LP.partnership | 181K | 7.8% | 2025-12-31 |
| 2026-02-05 | 13G/Ano. 3 | Sphera Funds Management Ltd.corporation | 181K | 7.8% | 2025-12-31 |
| 2025-10-15 | 13G/Ano. 4 | Jeremy M. Sclarindividual | 9.5M | 16.9% | 2025-09-30 |
| 2025-10-15 | 13G/Ano. 4 | Jeremy M. Sclar 2012 Irrevocable Family Trustother entity | 7.5M | 13.6% | 2025-09-30 |
| 2025-10-15 | 13G/Ano. 4 | Crocker Mountain LLCother entity | 1.9M | 3.6% | 2025-09-30 |
13F holders
Tracked managers holding PMN at their latest 13F. JSON1 of the 30 tracked managers held PMN at their latest 13F, $738K in total at quarter-end prices. Millennium Management is the largest at $738K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 0 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Millennium Management | 2026-06-30 | 56K | $738K | 0.00% | -22K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
ProMIS Neurosciences in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows ProMIS Neurosciences (PMN), SEC CIK 1374339, listed on Nasdaq, classified by the SEC as pharmaceutical preparations. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-14.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-14.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-13.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-08-05.JSON and CSV
- Company record
- EDGAR filing index for CIK 1374339Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of PMN is sold short?
245,838 shares were held short at the 2026-10-15 settlement, 7.1 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is PMN's daily short volume?
On 2026-11-02, 1,263,101 of the 2,137,620 PMN shares reported to FINRA were sold short, 59.1% of the day's reported volume. Short volume is a flow for one day, not a position.
Does PMN have fails to deliver?
The SEC's latest file shows 1,392 PMN shares failed to deliver at settlement 2026-10-14. Fails are reported per settlement date and published twice a month with a lag.
Are PMN insiders buying or selling?
Insiders at PMN reported 1 open-market buy worth $30K in the last 90 days and no open-market sells. Latest filing: Kaplan Johanne (Chief Development Officer) on 2026-08-05.
Who owns 5% or more of PMN?
28 holders report 5% or more of PMN in their latest filing, 8 on Schedule 13D (active intent). The largest reported stake is Fan Yu at 17.0% of the class (1,644,397 shares), filed 2026-02-05 for an event on 2026-02-03.
Which tracked 13F managers own PMN?
1 of the 30 tracked 13F managers held PMN shares at their latest filing, $738K in all. The largest: Izzy Englander's Millennium Management (56K shares, $738K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.