Milestone Pharmaceuticals Inc. - MIST
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 9 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Propel Bio Management, LLC | History | Reduced | 4,118,321 | 8,319 | 7.1% | 10.26% | 1 | -1,006,569 | -19.64% | Q4 2025 | Feb 11, 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | History | Reduced | 2,810,037 | 5,676 | 0.01% | 0.02% | 2 | -4,165,963 | -59.72% | Q4 2025 | Feb 17, 2026 |
| RTW INVESTMENTS, LP | History | New | 2,506,102 | 5,062 | 0.05% | — | 3 | +2,506,102 | New | Q4 2025 | Feb 17, 2026 |
| MARSHALL WACE, LLP | History | Added to | 1,656,821 | 3,346 | 0.0% | 0.0% | 4 | +1,231,793 | 289.81% | Q4 2025 | Feb 13, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 1,514,461 | 3,059 | 0.0% | 0.0% | 5 | +847,910 | 127.21% | Q4 2025 | Feb 17, 2026 |
| Simplify Asset Management Inc. | History | Reduced | 1,506,405 | 3,042 | 0.05% | 0.1% | 6 | -1,326,569 | -46.83% | Q4 2025 | Feb 09, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Added to | 1,249,400 | 2,523 | 0.0% | 0.0% | 7 | +704,428 | 129.26% | Q4 2025 | Feb 17, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 1,217,130 | 2,458 | 0.0% | 0.0% | 8 | +795,938 | 188.97% | Q4 2025 | Feb 12, 2026 |
| Pathstone Holdings, LLC | History | New | 1,017,040 | 2,104 | 0.01% | — | 9 | +1,017,040 | New | Q4 2025 | Feb 13, 2026 |
| MORGAN STANLEY | History | Reduced | 781,875 | 1,579 | 0.0% | 0.0% | 10 | -2,187,192 | -73.67% | Q4 2025 | Feb 13, 2026 |
| Lion Point Capital, LP | History | Added to | 755,000 | 1,525 | 7.89% | 7.48% | 11 | +96,447 | 14.65% | Q4 2025 | Feb 17, 2026 |
| TORONTO DOMINION BANK | History | No change | 750,000 | 1,515 | 0.0% | 0.0% | 12 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Boxer Capital Management, LLC | History | No change | 666,666 | 1,346 | 0.29% | 0.42% | 13 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Stonepine Capital Management, LLC | History | New | 662,666 | 1,338 | 0.98% | — | 14 | +662,666 | New | Q4 2025 | Feb 13, 2026 |
| CITADEL ADVISORS LLC | History | Added to | 637,232 | 1,287 | 0.0% | 0.0% | 15 | +45,565 | 7.7% | Q4 2025 | Feb 17, 2026 |
| TWO SIGMA ADVISERS, LP | History | Added to | 619,592 | 1,251 | 0.0% | 0.0% | 16 | +385,551 | 164.74% | Q4 2025 | Feb 17, 2026 |
| GROUP ONE TRADING LLC | History | Added to | 569,599 | 1,150 | 0.0% | 0.0% | 17 | +547,577 | 2486.5% | Q4 2025 | Feb 12, 2026 |
| UBS Group AG | History | Added to | 491,868 | 993 | 0.0% | 0.0% | 18 | +94,334 | 23.73% | Q4 2025 | Jan 29, 2026 |
| Point72 Asset Management, L.P. | History | New | 482,355 | 974 | 0.0% | — | 19 | +482,355 | New | Q4 2025 | Feb 17, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Added to | 402,635 | 813 | 0.0% | 0.0% | 20 | +1,076 | 0.27% | Q4 2025 | Feb 17, 2026 |
| Aptus Capital Advisors, LLC | History | Added to | 263,200 | 531 | 0.0% | 0.0% | 21 | +53,000 | 25.21% | Q4 2025 | Feb 13, 2026 |
| GUARDIAN WEALTH ADVISORS, LLC / NC | History | Added to | 263,200 | 531 | 0.03% | 0.03% | 22 | +53,000 | 25.21% | Q4 2025 | Feb 17, 2026 |
| Squarepoint Ops LLC | History | New | 249,344 | 503 | 0.0% | — | 23 | +249,344 | New | Q4 2025 | Feb 13, 2026 |
| GSA CAPITAL PARTNERS LLP | History | Added to | 236,138 | 477 | 0.04% | 0.01% | 24 | +157,391 | 199.87% | Q4 2025 | Feb 06, 2026 |
| NOMURA HOLDINGS INC | History | New | 225,000 | 454 | 0.0% | — | 25 | +225,000 | New | Q4 2025 | Feb 17, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | New | 221,951 | 448 | 0.0% | — | 26 | +221,951 | New | Q4 2025 | Feb 10, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | New | 176,200 | 353 | 0.0% | — | 27 | +176,200 | New | Q4 2025 | Feb 10, 2026 |
| XTX Topco Ltd | History | Reduced | 171,960 | 347 | 0.01% | 0.02% | 28 | -15,341 | -8.19% | Q4 2025 | Feb 17, 2026 |
| LPL Financial LLC | History | Added to | 142,463 | 287 | 0.0% | 0.0% | 29 | +47,163 | 49.49% | Q4 2025 | Feb 11, 2026 |
| Graham Capital Management, L.P. | History | New | 133,620 | 269 | 0.01% | — | 30 | +133,620 | New | Q4 2025 | Feb 17, 2026 |
| Valeo Financial Advisors, LLC | History | No change | 130,699 | 264 | 0.01% | 0.01% | 31 | 0 | 0.0% | Q4 2025 | Feb 04, 2026 |
| ADAR1 Capital Management, LLC | History | New | 100,100 | 202 | 0.01% | — | 33 | +100,100 | New | Q4 2025 | Feb 18, 2026 |
| TRU INDEPENDENCE ASSET MANAGEMENT 2, LLC | History | New | 100,000 | 202 | 0.13% | — | 32 | +100,000 | New | Q4 2025 | Feb 24, 2026 |
| SG Americas Securities, LLC | History | New | 97,375 | 197 | 0.0% | — | 34 | +97,375 | New | Q4 2025 | Jan 09, 2026 |
| Cascades Capital Asset Management, LLC | History | Added to | 77,510 | 156 | 0.07% | 0.07% | 35 | +175 | 0.23% | Q4 2025 | Feb 04, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | No change | 74,022 | 149 | 0.0% | 0.0% | 36 | 0 | 0.0% | Q4 2025 | Feb 09, 2026 |
| Engineers Gate Manager LP | History | New | 59,053 | 119 | 0.0% | — | 37 | +59,053 | New | Q4 2025 | Feb 17, 2026 |
| October Effect Ltd | History | New | 52,100 | 105 | 0.12% | — | 38 | +52,100 | New | Q4 2025 | Jan 20, 2026 |
| Cambridge Investment Research Advisors, Inc. | History | Added to | 47,140 | 95 | 0.0% | 0.0% | 39 | +34,442 | 271.24% | Q4 2025 | Feb 05, 2026 |
| NORTHERN TRUST CORP | History | No change | 39,258 | 79 | 0.0% | 0.0% | 40 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Focus Partners Wealth | History | No change | 36,000 | 72 | 0.0% | 0.0% | 41 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Qube Research & Technologies Ltd | History | New | 34,596 | 69 | 0.0% | — | 42 | +34,596 | New | Q4 2025 | Feb 17, 2026 |
| CITIGROUP INC | History | Added to | 33,858 | 68 | 0.0% | 0.0% | 43 | +26,046 | 333.41% | Q4 2025 | Feb 13, 2026 |
| Scientech Research LLC | History | New | 30,124 | 60 | 0.04% | — | 44 | +30,124 | New | Q4 2025 | Feb 17, 2026 |
| Federation des caisses Desjardins du Quebec | History | No change | 29,781 | 60 | 0.0% | 0.0% | 45 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| Bay Rivers Group | History | Added to | 28,861 | 58 | 0.02% | 0.01% | 46 | +12,170 | 72.91% | Q4 2025 | Jan 07, 2026 |
| RAYMOND JAMES FINANCIAL INC | History | No change | 26,600 | 53 | 0.0% | 0.0% | 47 | 0 | 0.0% | Q4 2025 | Feb 18, 2026 |
| Mariner, LLC | History | No change | 25,000 | 50 | 0.0% | 0.0% | 48 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Safeguard Investment Advisory Group, LLC | History | No change | 25,044 | 50 | 0.01% | 0.01% | 49 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Creative Planning | History | No change | 23,410 | 47 | 0.0% | 0.0% | 50 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Invesco Ltd. | History | New | 21,893 | 44 | 0.0% | — | 52 | +21,893 | New | Q4 2025 | Feb 19, 2026 |
| STATE STREET CORP | History | Reduced | 21,875 | 44 | 0.0% | 0.0% | 51 | -345 | -1.55% | Q4 2025 | Feb 13, 2026 |
| Cetera Investment Advisers | History | New | 20,722 | 41 | 0.0% | — | 53 | +20,722 | New | Q4 2025 | Feb 17, 2026 |
| JOURNEY STRATEGIC WEALTH LLC | History | Added to | 30,000 | 40 | 0.0% | 0.0% | 54 | +20,000 | 200.0% | Q4 2025 | Feb 13, 2026 |
| Stephenson & Company, Inc. | History | No change | 20,000 | 40 | 0.02% | 0.02% | 55 | 0 | 0.0% | Q4 2025 | Jan 27, 2026 |
| Quantbot Technologies LP | History | New | 18,990 | 38 | 0.0% | — | 56 | +18,990 | New | Q4 2025 | Feb 10, 2026 |
| NATIONAL BANK OF CANADA /FI/ | History | No change | 18,700 | 37 | 0.0% | 0.0% | 57 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Bayesian Capital Management, LP | History | New | 17,215 | 34 | 0.08% | — | 58 | +17,215 | New | Q4 2025 | Feb 17, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | Added to | 16,000 | 32 | 0.0% | 0.0% | 59 | +5,000 | 45.45% | Q4 2025 | Feb 17, 2026 |
| SJS Investment Consulting Inc. | History | New | 15,000 | 30 | 0.0% | — | 60 | +15,000 | New | Q4 2025 | Jan 21, 2026 |
| Beta Wealth Group, Inc. | History | No change | 14,127 | 28 | 0.01% | 0.01% | 61 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Eaton Financial Holdings Company, LLC | History | New | 12,750 | 25 | 0.01% | — | 63 | +12,750 | New | Q4 2025 | Feb 09, 2026 |
| Strategic Family Wealth Counselors, L.L.C. | History | New | 12,675 | 25 | 0.01% | — | 62 | +12,675 | New | Q4 2025 | Feb 04, 2026 |
| Bronte Capital Management Pty Ltd. | History | New | 10,414 | 21 | 0.0% | — | 64 | +10,414 | New | Q4 2025 | Feb 03, 2026 |
| INTEGRAL INVESTMENT ADVISORS, INC. | History | New | 10,000 | 20 | 0.0% | — | 68 | +10,000 | New | Q4 2025 | Feb 06, 2026 |
| AQR CAPITAL MANAGEMENT LLC | History | No change | 10,000 | 20 | 0.0% | 0.0% | 65 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Ancora Advisors LLC | History | No change | 10,000 | 20 | 0.0% | 0.0% | 66 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Secure Asset Management, LLC | History | No change | 10,000 | 20 | 0.0% | 0.0% | 67 | 0 | 0.0% | Q4 2025 | Jan 20, 2026 |
| Taylor Financial Group, Inc. | History | No change | 10,000 | 20 | 0.01% | 0.01% | 69 | 0 | 0.0% | Q4 2025 | Feb 06, 2026 |
| Tower Research Capital LLC (TRC) | History | New | 8,980 | 18 | 0.0% | — | 70 | +8,980 | New | Q4 2025 | Feb 17, 2026 |
| ROYAL BANK OF CANADA | History | New | 6,698 | 13 | 0.0% | — | 71 | +6,698 | New | Q4 2025 | Feb 17, 2026 |
| US BANCORP \DE\ | History | No change | 3,200 | 6 | 0.0% | 0.0% | 72 | 0 | 0.0% | Q4 2025 | Jan 30, 2026 |
| Rockefeller Capital Management L.P. | History | New | 1,700 | 3 | 0.0% | — | 74 | +1,700 | New | Q4 2025 | Mar 16, 2026 |
| Arax Advisory Partners | History | Added to | 1,591 | 3 | 0.0% | 0.0% | 73 | +514 | 47.73% | Q4 2025 | Feb 13, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 841 | 1 | 0.0% | 0.0% | 75 | -15,211 | -94.76% | Q4 2025 | Feb 17, 2026 |
| ORBIMED ADVISORS LLC | History | Closed out | 0 | 0 | — | 0.15% | — | -3,221,828 | -100.0% | Q3 2025 | Nov 14, 2025 |
| SPHERA FUNDS MANAGEMENT LTD. | History | Closed out | 0 | 0 | — | 0.35% | — | -820,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Affinity Asset Advisors, LLC | History | Closed out | 0 | 0 | — | 0.12% | — | -666,666 | -100.0% | Q3 2025 | Nov 13, 2025 |
| GOLDMAN SACHS GROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -356,567 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Quadrature Capital Ltd | History | Closed out | 0 | 0 | — | 0.01% | — | -223,470 | -100.0% | Q3 2025 | Nov 13, 2025 |
| HRT FINANCIAL LP | History | Closed out | 0 | 0 | — | 0.0% | — | -138,812 | -100.0% | Q3 2025 | Nov 14, 2025 |
| SIMPLEX TRADING, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -103,120 | -100.0% | Q3 2025 | Nov 12, 2025 |
| SAPIENT CAPITAL LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -12,200 | -100.0% | Q3 2025 | Oct 17, 2025 |
| Wealthspire Advisors, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,129 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Medallion Wealth Advisors, LLC | History | New | 340 | 0 | — | — | — | +340 | New | Q4 2025 | Apr 24, 2026 |
| Rialto Wealth Management, LLC | History | New | 300 | 0 | — | — | — | +300 | New | Q4 2025 | Jan 12, 2026 |
| Key Capital Management, INC | History | New | 212 | 0 | — | — | — | +212 | New | Q4 2025 | Jan 26, 2026 |
| SBI Securities Co., Ltd. | History | No change | 6 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 03, 2026 |