Aktis Oncology, Inc. 13F holders
113 funds reported a position in Aktis Oncology, Inc. in their 13F for the quarter ended 30 June 2026, together 34.2 million shares worth $1.10 billion. Against the quarter before, 50 opened a position, 27 added, 18 trimmed and 6 sold out; together they sold a net 870,770 shares. The largest holders: MPM Bioimpact LLC, EcoR1 Capital, LLC and Blue Owl Capital Holdings LP.
Funds holding113+44 on Q1 2026
Shares they held34.2Mworth $1.10 billion
Net sold on the quarter870,770 sharesabout $28.1 million at the funds' values
Funds buying to selling77 to 24opened or added, to cut or sold
Opened 50Added 27Held 16Trimmed 18Sold out 6
What each fund did in AKTS against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in AKTS in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,405 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 19 reported a position in Aktis Oncology, Inc.: 4 opened one, 7 added, 4 trimmed and 3 sold out, a net 105,363 shares bought.
| Fund | Change in shares | Shares now | Status | Filing |
|---|---|---|---|---|
| Mirador Capital Partners LP | +93,434 | 133,558 | added | 13F |
| NLB Skladi, upravljanje premozenja, d.o.o. | +15,000 | 15,000 | new | 13F |
| Pinnacle Wealth Planning Services, Inc. | -2,229 | 38 | trimmed | 13F |
| Strs Ohio | -900 | 2,200 | trimmed | 13F |
| Sterling Capital Management LLC | +639 | 823 | added | 13F |
| State of Wyoming | -332 | 653 | trimmed | 13F |
| Versant Capital Management, Inc | +324 | 324 | new | 13F |
| Lanark Financial, Inc. | +209 | 5,567 | added | 13F |
| Farther Finance Advisors, LLC | +96 | 173 | added | 13F |
| Gamma Investing LLC | +88 | 108 | added | 13F |
| Parkside Financial Bank & Trust | +45 | 45 | new | 13F |
| Caitong International Asset Management Co., Ltd | +27 | 35 | added | 13F |
| First Horizon Corp. | +15 | 15 | new | 13F |
| SJS Investment Consulting Inc. | +14 | 47 | added | 13F |
| CoreCap Advisors, LLC | -29 | 0 | sold out | 13F |
| Salem Investment Counselors Inc. | -1,000 | 0 | sold out | 13F |
| WPG Advisers, LLC | -25 | 0 | sold out | 13F |
| Covestor Ltd | -13 | 10 | trimmed | 13F |
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 7 reported a position in Aktis Oncology, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 520,737 shares worth $16.8 million, 0.0% of its reported book. New this quarter: Renaissance Technologies, Two Sigma Investments. In the quarter, 3 funds added or opened a position and 2 trimmed or sold out; together they bought a net 4,904 shares, about $158,056 at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 520,737 | $16.8 million | 0.0% | +28,801 | added | 30 June 2026 | 13F |
| Alyeska | 290,000 | $9.3 million | 0.0% | no change | held | 30 June 2026 | 13F |
| FMR LLC | 285,631 | $9.2 million | 0.0% | -100,748 | trimmed | 30 June 2026 | 13F |
| Soros Fund Management | 100,000 | $3.2 million | 0.1% | no change | held | 30 June 2026 | 13F |
| Renaissance Technologies | 95,400 | $3.1 million | 0.0% | +95,400 | new | 30 June 2026 | 13F |
| Two Sigma Investments | 30,914 | $996,358 | 0.0% | +30,914 | new | 30 June 2026 | 13F |
| Citadel Advisors | 25,537 | $823,058 | 0.0% | -49,463 | trimmed | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| MPM Bioimpact LLC | 4,835,872 | 14.15% | $155.9 million | 9.50% | no change | 13F |
| EcoR1 Capital, LLC | 4,824,469 | 14.12% | $155.5 million | 7.71% | no change | 13F |
| Blue Owl Capital Holdings LP | 3,070,219 | 8.99% | $99.0 million | 15.04% | -91,129 | 13F |
| BlackRock, Inc. | 2,278,358 | 6.67% | $73.4 million | 0.00% | +166,231 | 13F |
| T. Rowe Price Investment Management, Inc. | 2,051,447 | 6.00% | $66.1 million | 0.04% | -72,365 | 13F |
| Wellington Management Group LLP | 1,966,244 | 5.75% | $63.4 million | 0.01% | -350,800 | 13F |
| RTW Investments, LP | 1,592,043 | 4.66% | $51.3 million | 0.44% | no change | 13F |
| Ra Capital Management, L.P. | 1,314,405 | 3.85% | $42.4 million | 0.37% | -188,679 | 13F |
| Jupiter Topco LLC | 1,314,267 | 3.85% | $42.4 million | 0.02% | first 13F | 13F |
| Baker Bros. Advisors LP | 996,351 | 2.92% | $32.1 million | 0.16% | no change | 13F |
| Octagon Capital Advisors LP | 960,847 | 2.81% | $31.0 million | 2.84% | no change | 13F |
| Merck & Co., Inc. | 952,844 | 2.79% | $30.7 million | 5.83% | no change | 13F |
| Vanguard Capital Management LLC | 817,075 | 2.39% | $26.3 million | 0.00% | -16,838 | 13F |
| Price T Rowe Associates Inc. | 763,499 | 2.23% | $24.6 million | 0.00% | -800,697 | 13F |
| TCG Crossover Management, LLC | 696,560 | 2.04% | $22.5 million | 0.54% | new | 13F |
| Geode Capital Management, LLC | 520,737 | 1.52% | $16.8 million | 0.00% | +28,801 | 13F |
| Eventide Asset Management, LLC | 507,000 | 1.48% | $16.3 million | 0.22% | no change | 13F |
| Avidity Partners Management LP | 484,200 | 1.42% | $15.6 million | 2.50% | -452,932 | 13F |
| State Street Corp. | 484,010 | 1.42% | $15.6 million | 0.00% | +55,757 | 13F |
| a16z Capital Management, L.L.C. | 415,000 | 1.21% | $13.4 million | 0.09% | no change | 13F |
| Alyeska Investment Group, L.P. | 290,000 | 0.85% | $9.3 million | 0.02% | no change | 13F |
| FMR LLC | 285,631 | 0.84% | $9.2 million | 0.00% | -100,748 | 13F |
| ArrowMark Colorado Holdings LLC | 245,872 | 0.72% | $7.9 million | 0.33% | -83,599 | 13F |
| Northern Trust Corp. | 180,575 | 0.53% | $5.8 million | 0.00% | +31,099 | 13F |
| Charles Schwab Investment Management Inc. | 166,842 | 0.49% | $5.4 million | 0.00% | +4,825 | 13F |
| Barclays PLC | 151,696 | 0.44% | $4.9 million | 0.00% | +141,972 | 13F |
| Vanguard Portfolio Management LLC | 145,220 | 0.42% | $4.7 million | 0.00% | +24,898 | 13F |
| Vanguard Fiduciary Trust Co. | 133,834 | 0.39% | $4.3 million | 0.00% | +6,439 | 13F |
| TD Asset Management Inc | 105,902 | 0.31% | $3.4 million | 0.00% | +4,940 | 13F |
| Soros Fund Management LLC | 100,000 | 0.29% | $3.2 million | 0.05% | no change | 13F |
| Woodline Partners LP | 100,000 | 0.29% | $3.2 million | 0.01% | no change | 13F |
| UBS Group AG | 99,960 | 0.29% | $3.2 million | 0.00% | -253,303 | 13F |
| Renaissance Technologies LLC | 95,400 | 0.28% | $3.1 million | 0.00% | new | 13F |
| Bank of America Corp. | 72,835 | 0.21% | $2.3 million | 0.00% | +2,909 | 13F |
| Polen Capital Management LLC | 63,514 | 0.19% | $2.0 million | 0.02% | new | 13F |
| Morgan Stanley | 62,636 | 0.18% | $2.0 million | 0.00% | +31,913 | 13F |
| Tidal Investments LLC | 57,059 | 0.17% | $1.8 million | 0.00% | new | 13F |
| Raymond James Financial Inc. | 50,464 | 0.15% | $1.6 million | 0.00% | new | 13F |
| Nuveen, LLC | 49,816 | 0.15% | $1.6 million | 0.00% | +25,348 | 13F |
| Bank of New York Mellon Corp | 49,250 | 0.14% | $1.6 million | 0.00% | +6,349 | 13F |
| AQR Capital Management LLC | 48,123 | 0.14% | $1.6 million | 0.00% | new | 13F |
| Manufacturers Life Insurance Company, the | 48,044 | 0.14% | $1.5 million | 0.00% | +1,051 | 13F |
| Quantinno Capital Management LP | 46,887 | 0.14% | $1.5 million | 0.00% | new | 13F |
| Great Lakes Advisors, LLC | 43,612 | 0.13% | $1.4 million | 0.01% | new | 13F |
| Mirador Capital Partners LP | 40,124 | 0.12% | $1.3 million | 0.16% | new | 13F |
| Squarepoint Ops LLC | 38,381 | 0.11% | $1.2 million | 0.00% | new | 13F |
| Jump Financial, LLC | 32,779 | 0.10% | $1.1 million | 0.01% | new | 13F |
| Sofinnova Investments, Inc. | 32,436 | 0.09% | $1.0 million | 0.06% | new | 13F |
| Two Sigma Investments, LP | 30,914 | 0.09% | $996,358 | 0.00% | new | 13F |
| Readystate Asset Management LP | 30,000 | 0.09% | $966,900 | 0.06% | no change | 13F |
The 50 largest of the 113 funds that reported a position in AKTS in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 14 May 2026 | 13G | Blue Owl Capital Holdings LP and 1 other | 3.2 million | 5.9% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 20 January 2026 | 13D | MPM Bioventures 2018, L.P. and 12 others | 10.3 million | 19.3% | 12 January 2026 | The MPM Entities acquired the securities reported herein for investment purposes and not with an intent, purpose or effect of changing control of the Issuer. Although the Reporting Persons currently have no plan or proposal to acquire any a | EDGAR |
| 20 January 2026 | 13D | EcoR1 Capital, LLC and 2 others | 4.9 million | 9.1% | 12 January 2026 | Oleg Nodelman, the manager of EcoR1, is a member of the Issuer's board of directors. The reporting persons acquired securities of the Issuer for investment purposes based on their belief that the Issuer's securities represented an attractiv | EDGAR |
| 15 January 2026 | 13D | Eli Lilly and Company | 6.3 million | 11.9% | 12 January 2026 | The Reporting Person acquired the securities reported herein for investment purposes and intends to continue to review its investments in the Issuer on an ongoing basis. Except as set forth herein, the Reporting Person does not currently ha | EDGAR |
| 14 January 2026 | 13D | Vida Ventures II, LLC and 3 others | 5.8 million | 10.9% | 12 January 2026 | The information set forth in Item 3 of this Statement is incorporated herein by reference. The Reporting Persons hold the securities of the Issuer for general investment purposes. The Reporting Persons may, from time to time, depending on p | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 28 August 2026 | 199 | $26.18 | SEC |
| 27 August 2026 | 109 | $26.51 | SEC |
| 18 August 2026 | 1,851 | $24.72 | SEC |
| 17 August 2026 | 1,707 | $24.93 | SEC |
| 11 August 2026 | 8,078 | $24.10 | SEC |
| 6 August 2026 | 1 | $22.65 | SEC |
| 3 August 2026 | 564 | $22.07 | SEC |
| 30 July 2026 | 5,446 | $22.39 | SEC |
| 28 July 2026 | 653 | $24.21 | SEC |
| 27 July 2026 | 1,716 | $23.89 | SEC |
| 24 July 2026 | 4,572 | $24.01 | SEC |
| 23 July 2026 | 645 | $24.81 | SEC |
| 20 July 2026 | 26,704 | $24.89 | SEC |
| 17 July 2026 | 7,112 | $25.02 | SEC |
| 15 July 2026 | 329 | $25.18 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.