Aktis Oncology, Inc. - AKTS
Detailed investor-level table based on 13F positions.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MPM BioImpact LLC | History | No change | 4,835,872 | 155,860 | 9.5% | 9.5% | 1 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| EcoR1 Capital, LLC | History | No change | 4,824,469 | 155,492 | 7.56% | 7.56% | 2 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Blue Owl Capital Holdings LP | History | No change | 3,070,219 | 98,953 | 14.89% | 14.89% | 3 | 0 | 0.0% | Q2 2026 | Aug 11, 2026 |
| BlackRock, Inc. | History | No change | 2,278,358 | 73,431 | 0.0% | 0.0% | 4 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| T. Rowe Price Investment Management, Inc. | History | No change | 2,051,447 | 66,119 | 0.04% | 0.04% | 5 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | History | No change | 1,966,244 | 63,372 | 0.01% | 0.01% | 6 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| RTW INVESTMENTS, LP | History | No change | 1,592,043 | 51,311 | 0.44% | 0.44% | 7 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| RA CAPITAL MANAGEMENT, L.P. | History | No change | 1,314,405 | 42,363 | 0.37% | 0.37% | 8 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Jupiter Topco LLC | History | No change | 1,314,267 | 42,358 | 0.02% | 0.02% | 9 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| BAKER BROS. ADVISORS LP | History | No change | 996,351 | 32,112 | 0.16% | 0.16% | 10 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Octagon Capital Advisors LP | History | No change | 960,847 | 30,968 | 2.78% | 2.78% | 11 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Merck & Co., Inc. | History | No change | 952,844 | 30,710 | 5.83% | 5.83% | 12 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | No change | 817,075 | 26,334 | 0.0% | 0.0% | 13 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | No change | 763,499 | 24,608 | 0.0% | 0.0% | 14 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| TCG Crossover Management, LLC | History | No change | 696,560 | 22,450 | 0.54% | 0.54% | 15 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | No change | 520,737 | 16,787 | 0.0% | 0.0% | 16 | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |
| EVENTIDE ASSET MANAGEMENT, LLC | History | No change | 507,000 | 16,340 | 0.22% | 0.22% | 17 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Avidity Partners Management LP | History | No change | 484,200 | 15,605 | 2.5% | 2.5% | 18 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| STATE STREET CORP | History | No change | 484,010 | 15,599 | 0.0% | 0.0% | 19 | 0 | 0.0% | Q2 2026 | Sep 22, 2026 |
| a16z Capital Management, L.L.C. | History | No change | 415,000 | 13,375 | 0.09% | 0.09% | 20 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Alyeska Investment Group, L.P. | History | No change | 290,000 | 9,346 | 0.02% | 0.02% | 21 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| FMR LLC | History | No change | 285,631 | 9,205 | 0.0% | 0.0% | 22 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| ArrowMark Colorado Holdings LLC | History | No change | 245,872 | 7,924 | 0.33% | 0.33% | 23 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| NORTHERN TRUST CORP | History | No change | 180,575 | 5,819 | 0.0% | 0.0% | 24 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | No change | 166,842 | 5,377 | 0.0% | 0.0% | 25 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| BARCLAYS PLC | History | No change | 151,696 | 4,889 | 0.0% | 0.0% | 26 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | History | No change | 145,220 | 4,680 | 0.0% | 0.0% | 27 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | No change | 133,834 | 4,313 | 0.0% | 0.0% | 28 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| TD ASSET MANAGEMENT INC | History | No change | 105,902 | 3,413 | 0.0% | 0.0% | 29 | 0 | 0.0% | Q2 2026 | Aug 04, 2026 |
| SOROS FUND MANAGEMENT LLC | History | No change | 100,000 | 3,223 | 0.04% | 0.04% | 30 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Woodline Partners LP | History | No change | 100,000 | 3,223 | 0.01% | 0.01% | 31 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| UBS Group AG | History | No change | 99,960 | 3,221 | 0.0% | 0.0% | 32 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | No change | 95,400 | 3,074 | 0.0% | 0.0% | 33 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Mirador Capital Partners LP | History | Added to | 133,558 | 2,600 | 0.3% | 0.16% | 34 | +93,434 | 232.86% | Q3 2026 | Oct 09, 2026 |
| BANK OF AMERICA CORP /DE/ | History | No change | 72,835 | 2,347 | 0.0% | 0.0% | 35 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| POLEN CAPITAL MANAGEMENT LLC | History | No change | 63,514 | 2,047 | 0.02% | 0.02% | 36 | 0 | 0.0% | Q2 2026 | Aug 04, 2026 |
| MORGAN STANLEY | History | No change | 62,636 | 2,018 | 0.0% | 0.0% | 37 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Tidal Investments LLC | History | No change | 57,059 | 1,839 | 0.0% | 0.0% | 38 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| RAYMOND JAMES FINANCIAL INC | History | No change | 50,464 | 1,626 | 0.0% | 0.0% | 39 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Nuveen, LLC | History | No change | 49,816 | 1,605 | 0.0% | 0.0% | 40 | 0 | 0.0% | Q2 2026 | Aug 11, 2026 |
| Bank of New York Mellon Corp | History | No change | 49,250 | 1,587 | 0.0% | 0.0% | 41 | 0 | 0.0% | Q2 2026 | Aug 06, 2026 |
| AQR CAPITAL MANAGEMENT LLC | History | No change | 48,123 | 1,551 | 0.0% | 0.0% | 42 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | History | No change | 48,044 | 1,548 | 0.0% | 0.0% | 43 | 0 | 0.0% | Q2 2026 | Sep 09, 2026 |
| Quantinno Capital Management LP | History | No change | 46,887 | 1,511 | 0.0% | 0.0% | 44 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| GREAT LAKES ADVISORS, LLC | History | No change | 43,612 | 1,405 | 0.01% | 0.01% | 45 | 0 | 0.0% | Q2 2026 | Aug 10, 2026 |
| Squarepoint Ops LLC | History | No change | 38,381 | 1,237 | 0.0% | 0.0% | 46 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Jump Financial, LLC | History | No change | 32,779 | 1,056 | 0.01% | 0.01% | 47 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Sofinnova Investments, Inc. | History | No change | 32,436 | 1,045 | 0.05% | 0.05% | 48 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | No change | 30,914 | 996 | 0.0% | 0.0% | 49 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| READYSTATE ASSET MANAGEMENT LP | History | No change | 30,000 | 966 | 0.03% | 0.03% | 50 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| WELLS FARGO & COMPANY/MN | History | No change | 27,659 | 891 | 0.0% | 0.0% | 51 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| RHUMBLINE ADVISERS | History | No change | 26,945 | 868 | 0.0% | 0.0% | 52 | 0 | 0.0% | Q2 2026 | Aug 11, 2026 |
| CITADEL ADVISORS LLC | History | No change | 25,537 | 823 | 0.0% | 0.0% | 53 | 0 | 0.0% | Q2 2026 | Sep 02, 2026 |
| Ghisallo Capital Management LLC | History | No change | 25,000 | 805 | 0.02% | 0.02% | 54 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| SEVEN GRAND MANAGERS, LLC | History | No change | 25,000 | 805 | 0.03% | 0.03% | 55 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| TUDOR INVESTMENT CORP ET AL | History | No change | 21,402 | 689 | 0.0% | 0.0% | 56 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| GOLDMAN SACHS GROUP INC | History | No change | 21,278 | 685 | 0.0% | 0.0% | 57 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| DEUTSCHE BANK AG\ | History | No change | 21,022 | 677 | 0.0% | 0.0% | 58 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| AMERIPRISE FINANCIAL INC | History | No change | 20,000 | 644 | 0.0% | 0.0% | 59 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Mariner, LLC | History | No change | 17,770 | 572 | 0.0% | 0.0% | 60 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| SEI INVESTMENTS CO | History | No change | 16,402 | 528 | 0.0% | 0.0% | 61 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Virtus Investment Advisers, LLC | History | No change | 14,920 | 480 | 0.11% | 0.11% | 62 | 0 | 0.0% | Q2 2026 | Aug 11, 2026 |
| Invesco Ltd. | History | No change | 14,908 | 480 | 0.0% | 0.0% | 63 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| LOS ANGELES CAPITAL MANAGEMENT LLC | History | No change | 14,379 | 463 | 0.0% | 0.0% | 64 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| CITIGROUP INC | History | No change | 13,177 | 424 | 0.0% | 0.0% | 65 | 0 | 0.0% | Q2 2026 | Aug 03, 2026 |
| MetLife Investment Management, LLC | History | No change | 12,994 | 418 | 0.0% | 0.0% | 66 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Caprock Group, LLC | History | No change | 9,908 | 319 | 0.01% | 0.01% | 67 | 0 | 0.0% | Q2 2026 | Jul 27, 2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | History | No change | 9,769 | 314 | 0.0% | 0.0% | 68 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | No change | 8,623 | 277 | 0.0% | 0.0% | 69 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| JPMORGAN CHASE & CO | History | No change | 8,835 | 266 | 0.0% | 0.0% | 70 | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |
| Russell Investments Group, Ltd. | History | No change | 7,754 | 249 | 0.0% | 0.0% | 71 | 0 | 0.0% | Q2 2026 | Aug 06, 2026 |
| NEW YORK STATE COMMON RETIREMENT FUND | History | No change | 7,500 | 241 | 0.0% | 0.0% | 72 | 0 | 0.0% | Q2 2026 | Jul 29, 2026 |
| AXQ CAPITAL, LP | History | No change | 7,020 | 226 | 0.02% | 0.02% | 73 | 0 | 0.0% | Q2 2026 | Aug 06, 2026 |
| Vanguard Global Advisers, LLC | History | No change | 6,886 | 221 | 0.0% | 0.0% | 74 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | No change | 6,140 | 197 | 0.0% | 0.0% | 75 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| Police & Firemen's Retirement System of New Jersey | History | No change | 5,530 | 178 | 0.0% | 0.0% | 76 | 0 | 0.0% | Q2 2026 | Jul 23, 2026 |
| LANARK FINANCIAL, INC. | History | No change | 5,358 | 172 | 0.01% | 0.01% | 77 | 0 | 0.0% | Q2 2026 | Jul 21, 2026 |
| SG Americas Securities, LLC | History | No change | 3,368 | 109 | 0.0% | 0.0% | 78 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | No change | 3,280 | 105 | 0.0% | 0.0% | 79 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| STRS OHIO | History | No change | 3,100 | 99 | 0.0% | 0.0% | 80 | 0 | 0.0% | Q2 2026 | Jul 30, 2026 |
| Tower Research Capital LLC (TRC) | History | No change | 2,268 | 73 | 0.0% | 0.0% | 81 | 0 | 0.0% | Q2 2026 | Aug 11, 2026 |
| Pinnacle Wealth Planning Services, Inc. | History | No change | 2,267 | 73 | 0.01% | 0.01% | 82 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| Legal & General Group Plc | History | No change | 2,062 | 66 | 0.0% | 0.0% | 83 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Ameritas Investment Partners, Inc. | History | No change | 1,925 | 62 | 0.0% | 0.0% | 84 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| SALEM INVESTMENT COUNSELORS INC | History | No change | 1,000 | 32 | 0.0% | 0.0% | 85 | 0 | 0.0% | Q2 2026 | Jul 14, 2026 |
| State of Wyoming | History | No change | 985 | 31 | 0.0% | 0.0% | 86 | 0 | 0.0% | Q2 2026 | Aug 06, 2026 |
| GK Wealth Management LLC | History | New | 1,350 | 26 | 0.01% | — | 87 | +1,350 | New | Q3 2026 | Oct 09, 2026 |
| ROYAL BANK OF CANADA | History | No change | 797 | 25 | 0.0% | 0.0% | 88 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| NATIONAL BANK OF CANADA /FI/ | History | No change | 700 | 22 | 0.0% | 0.0% | 89 | 0 | 0.0% | Q2 2026 | Aug 10, 2026 |
| FIFTH THIRD BANCORP | History | No change | 576 | 18 | 0.0% | 0.0% | 90 | 0 | 0.0% | Q2 2026 | Aug 05, 2026 |
| Arax Advisory Partners | History | No change | 385 | 12 | 0.0% | 0.0% | 91 | 0 | 0.0% | Q2 2026 | Aug 10, 2026 |
| Rockefeller Capital Management L.P. | History | No change | 397 | 12 | 0.0% | 0.0% | 92 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Global Retirement Partners, LLC | History | No change | 395 | 12 | 0.0% | 0.0% | 93 | 0 | 0.0% | Q2 2026 | Aug 06, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | No change | 288 | 9 | 0.0% | 0.0% | 94 | 0 | 0.0% | Q2 2026 | Aug 24, 2026 |
| Federation des caisses Desjardins du Quebec | History | No change | 250 | 8 | 0.0% | 0.0% | 95 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Versant Capital Management, Inc | History | New | 324 | 6 | 0.0% | — | 96 | +324 | New | Q3 2026 | Oct 01, 2026 |
| Sterling Capital Management LLC | History | No change | 184 | 5 | 0.0% | 0.0% | 97 | 0 | 0.0% | Q2 2026 | Jul 28, 2026 |
| Farther Finance Advisors, LLC | History | Added to | 173 | 3 | 0.0% | 0.0% | 100 | +96 | 124.68% | Q3 2026 | Oct 08, 2026 |
| Allworth Financial LP | History | No change | 124 | 3 | 0.0% | 0.0% | 98 | 0 | 0.0% | Q2 2026 | Aug 11, 2026 |
| IFP Advisors, Inc | History | No change | 101 | 3 | 0.0% | 0.0% | 99 | 0 | 0.0% | Q2 2026 | Jul 20, 2026 |
| GAMMA Investing LLC | History | Added to | 108 | 2 | 0.0% | — | 103 | +88 | 440.0% | Q3 2026 | Oct 08, 2026 |
| HM PAYSON & CO | History | No change | 74 | 2 | 0.0% | 0.0% | 101 | 0 | 0.0% | Q2 2026 | Jul 17, 2026 |
| EverSource Wealth Advisors, LLC | History | No change | 80 | 2 | 0.0% | 0.0% | 102 | 0 | 0.0% | Q2 2026 | Jul 24, 2026 |
| ROTHSCHILD INVESTMENT LLC | History | No change | 39 | 1 | 0.0% | 0.0% | 104 | 0 | 0.0% | Q2 2026 | Aug 06, 2026 |
| SJS Investment Consulting Inc. | History | No change | 33 | 1 | 0.0% | 0.0% | 105 | 0 | 0.0% | Q2 2026 | Jul 22, 2026 |
| Covestor Ltd | History | No change | 23 | 1 | 0.0% | 0.0% | 106 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| Quarry LP | History | No change | 34 | 1 | 0.0% | 0.0% | 107 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| CoreCap Advisors, LLC | History | Closed out | 0 | 0 | — | — | — | -29 | -100.0% | Q3 2026 | Oct 08, 2026 |
| Clearstead Advisors, LLC | History | No change | 6 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 06, 2026 |
| FWL INVESTMENT MANAGEMENT, LLC | History | No change | 23 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Caitong International Asset Management Co., Ltd | History | No change | 8 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 04, 2026 |
| Freestone Grove Partners LP | History | No change | 2 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Rossby Financial, LCC | History | No change | 18 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 04, 2026 |
| WPG Advisers, LLC | History | No change | 25 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 05, 2026 |
| Essential Partners LLC | History | No change | 4 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 10, 2026 |