Aktis Oncology, Inc.
AKTS- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0002035832
In the last 90 days, Aktis Oncology, Inc. insiders filed 0 open-market purchases and 5 sales; 113 institutions reported holding it in 13F filings for Q2 2026, worth $1.10B in total; Soros Fund Management is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Aktis Oncology, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 69
- +69 vs. Q4 2025
- Shares held
- 34.7M
- +34.7M vs. Q4 2025
- Total value
- $621.0M
- +$621.0M vs. Q4 2025
- New holders
- 69
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AKTS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 113 | $1.10B |
| Q1 2026 | 69 | $621.0M |
| Q4 2025 | 0 | $0 |
| Q3 2025 | 0 | $0 |
| Q2 2025 | 0 | $0 |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Aktis Oncology, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| MPM Oncology Impact Management LP | 4,835,872 | $86.5M | 6.68% | +4,835,872 | New |
| EcoR1 Capital, LLC | 4,824,469 | $86.3M | 3.69% | +4,824,469 | New |
| Blue Owl Capital Holdings LP | 3,161,348 | $56.6M | 15.20% | +3,161,348 | New |
| Wellington Management Group LLP | 2,317,044 | $41.5M | 0.01% | +2,317,044 | New |
| T. Rowe Price Investment Management, Inc. | 2,123,812 | $38.0M | 0.03% | +2,123,812 | New |
| BlackRock, Inc. | 2,112,127 | $37.8M | 0.00% | +2,112,127 | New |
| RTW Investments, LP | 1,592,043 | $28.5M | 0.28% | +1,592,043 | New |
| Price T Rowe Associates Inc | 1,564,196 | $28.0M | 0.00% | +1,564,196 | New |
| Ra Capital Management, L.P. | 1,503,084 | $26.9M | 0.28% | +1,503,084 | New |
| Janus Henderson Group PLC | 1,454,267 | $26.0M | 0.01% | +1,454,267 | New |
| Baker Bros. Advisors LP | 996,351 | $17.8M | 0.10% | +996,351 | New |
| Octagon Capital Advisors LP | 960,847 | $17.2M | 1.90% | +960,847 | New |
| Merck & Co., Inc. | 952,844 | $17.0M | 4.88% | +952,844 | New |
| Vanguard Capital Management LLC | 833,913 | $14.9M | 0.00% | +833,913 | New |
| Eventide Asset Management, LLC | 507,000 | $9.07M | 0.15% | +507,000 | New |
| Geode Capital Management, LLC | 491,936 | $8.80M | 0.00% | +491,936 | New |
| Avidity Partners Management LP | 468,566 | $8.38M | 1.70% | +468,566 | New |
| State Street Corp | 428,253 | $7.66M | 0.00% | +428,253 | New |
| AH Capital Management, L.L.C. | 415,000 | $7.42M | 0.58% | +415,000 | New |
| FMR LLC | 386,379 | $6.91M | 0.00% | +386,379 | New |
| UBS Group AG | 353,263 | $6.32M | 0.00% | +353,263 | New |
| ArrowMark Colorado Holdings LLC | 329,471 | $5.89M | 0.16% | +329,471 | New |
| Alyeska Investment Group, L.P. | 290,000 | $5.19M | 0.01% | +290,000 | New |
| Charles Schwab Investment Management Inc | 162,017 | $2.90M | 0.00% | +162,017 | New |
| Driehaus Capital Management LLC | 150,000 | $2.68M | 0.02% | +150,000 | New |
| Northern Trust Corp | 149,476 | $2.67M | 0.00% | +149,476 | New |
| Vanguard Fiduciary Trust Co | 127,395 | $2.28M | 0.00% | +127,395 | New |
| Vanguard Portfolio Management LLC | 120,322 | $2.15M | 0.00% | +120,322 | New |
| Ameriprise Financial Inc | 102,925 | $1.84M | 0.00% | +102,925 | New |
| TD Asset Management Inc | 100,962 | $1.81M | 0.00% | +100,962 | New |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 100,000 | $1.79M | 0.02% | +100,000 | New |
| Laurion Capital Management LP | 100,000 | $1.79M | 0.17% | +100,000 | New |
| Woodline Partners LP | 100,000 | $1.79M | 0.01% | +100,000 | New |
| Citadel Advisors LLC | 75,000 | $1.34M | 0.00% | +75,000 | New |
| Bank of America Corp | 69,926 | $1.25M | 0.00% | +69,926 | New |
| Manufacturers Life Insurance Company, The | 46,993 | $840.7K | 0.00% | +46,993 | New |
| Bank of New York Mellon Corp | 42,901 | $767.5K | 0.00% | +42,901 | New |
| Morgan Stanley | 30,723 | $549.6K | 0.00% | +30,723 | New |
| Goldman Sachs Group Inc | 30,163 | $539.6K | 0.00% | +30,163 | New |
| Readystate Asset Management LP | 30,000 | $536.7K | 0.03% | +30,000 | New |
| Ghisallo Capital Management LLC | 25,000 | $447.3K | 0.01% | +25,000 | New |
| Seven Grand Managers, LLC | 25,000 | $447.3K | 0.03% | +25,000 | New |
| Nuveen, LLC | 24,468 | $437.7K | 0.00% | +24,468 | New |
| Rhumbline Advisers | 21,033 | $376.3K | 0.00% | +21,033 | New |
| D. E. Shaw & Co., Inc. | 17,062 | $305.2K | 0.00% | +17,062 | New |
| Zimmer Partners, LP | 15,000 | $268.4K | 0.01% | +15,000 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 14,185 | $253.8K | 0.00% | +14,185 | New |
| Deutsche Bank AG | 14,080 | $251.9K | 0.00% | +14,080 | New |
| XTX Topco Ltd | 13,990 | $250.3K | 0.00% | +13,990 | New |
| Invesco Ltd. | 12,113 | $216.7K | 0.00% | +12,113 | New |
| MetLife Investment Management | 11,637 | $208.2K | 0.00% | +11,637 | New |
| Barclays PLC | 9,724 | $174.0K | 0.00% | +9,724 | New |
| Vanguard Global Advisers, LLC | 9,689 | $173.3K | 0.00% | +9,689 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 9,651 | $172.7K | 0.00% | +9,651 | New |
| JPMorgan Chase & Co | 8,355 | $138.2K | 0.00% | +8,355 | New |
| Wells Fargo & Company | 7,611 | $136.2K | 0.00% | +7,611 | New |
| The PNC Financial Services Group, Inc. | 6,948 | $124.3K | 0.00% | +6,948 | New |
| Police & Firemen's Retirement System of New Jersey | 5,530 | $98.9K | 0.00% | +5,530 | New |
| BNP Paribas Arbitrage, SA | 4,480 | $80.1K | 0.00% | +4,480 | New |
| STRS Ohio | 3,600 | $64.4K | 0.00% | +3,600 | New |
| New York State Common Retirement Fund | 3,200 | $57.2K | 0.00% | +3,200 | New |
| Legal & General Group Plc | 1,826 | $32.7K | 0.00% | +1,826 | New |
| Ameritas Investment Partners, Inc. | 1,683 | $30.1K | 0.00% | +1,683 | New |
| Russell Investments Group, Ltd. | 1,551 | $27.7K | 0.00% | +1,551 | New |
| Citigroup Inc | 1,019 | $18.2K | 0.00% | +1,019 | New |
| Tower Research Capital LLC (TRC) | 1,009 | $18.1K | 0.00% | +1,009 | New |
| Salem Investment Counselors Inc | 1,000 | $17.9K | 0.00% | +1,000 | New |
| Sterling Capital Management LLC | 393 | $7.03K | 0.00% | +393 | New |
| CWM, LLC | 21 | $376 | 0.00% | +21 | New |