AKTS in the 13F filings
Aktis Oncology Inc · CUSIP 01021M104
New listing in Q1 2026· first held by a tracked manager this quarter, so its new positions are allocations rather than a turn towards it
- Quarter end
- 31 Mar 2026
- the date the book describes
- Filed
- 18 May 2026
- latest of these filings; the earliest 12 May 2026
- Managers listing it
- 9
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q4 2025 and Q1 2026; 0 listed it in both
- Shares listed
- 6,026,061
- combined, among listed positions
- Reported value
- $108m
- combined, at the quarter end
Among the 91 comparable managers: 9 buyers (opened or added shares) and 0 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +6,026,061.
Managers listing AKTS in Q1 2026
9 of 9 holders
| Action | Filing | |||||
|---|---|---|---|---|---|---|
| Wellington Management Group LLP | 2,317,044 | $41m | under 0.1% | New | new | 15 May 2026 (the filing on sec.gov) |
| T. Rowe Price Associates Inc | 1,564,196 | $28m | under 0.1% | New | new | 15 May 2026 (the filing on sec.gov) |
| Janus Henderson Group Ltd | 1,454,267 | $26m | under 0.1% | New | new | 18 May 2026 (the filing on sec.gov) |
| Fidelity (FMR LLC) | 386,379 | $6.9m | under 0.1% | New | new | 15 May 2026 (the filing on sec.gov) |
| Soros Fund Management LLC | 100,000 | $1.8m | under 0.1% | New | new | 15 May 2026 (the filing on sec.gov) |
| Woodline Partners LP | 100,000 | $1.8m | under 0.1% | New | new | 15 May 2026 (the filing on sec.gov) |
| Citadel Advisors LLC | 75,000 | $1.3m | under 0.1% | New | new | 15 May 2026 (the filing on sec.gov) |
| D. E. Shaw & Co. | 17,062 | $305k | under 0.1% | New | new | 15 May 2026 (the filing on sec.gov) |
| Invesco Ltd | 12,113 | $217k | under 0.1% | New | new | 12 May 2026 (the filing on sec.gov) |
Largest increases and reductions, by shares
Increases
- Wellington Management Group LLPnew position · 2,317,044 shares now+2,317,044
- T. Rowe Price Associates Incnew position · 1,564,196 shares now+1,564,196
- Janus Henderson Group Ltdnew position · 1,454,267 shares now+1,454,267
- Fidelity (FMR LLC)new position · 386,379 shares now+386,379
- Soros Fund Management LLCnew position · 100,000 shares now+100,000
Reductions
No reduction among listed positions.
New positions and exits
New (9)
Exited (0)
No exit shown by a manager’s own filing.
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q1 2026 | 1 | $1.8m | 9 | 0 |
| Q2 2026 | 3 | $48m | 9 | 6 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
AKTS and LLY →AKTS and JNJ →AKTS and VRTX →Choose a stock to compare with AKTS →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own AKTS, latest filings →Back to the 13F Explorer →