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AKTS in the 13F filings

Aktis Oncology Inc · CUSIP 01021M104

Sector · Pharmaceuticals and biotechnologyTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Pharmaceutical preparations
Quarter
Q2 2026Q1 2026
Quarter end
30 Jun 2026
the date the book describes
Filed
2 Sep 2026
latest of these filings; the earliest 4 Aug 2026
Managers listing it
16
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 1 listed it in both
Shares listed
4,876,445
combined, among listed positions
Reported value
$157m
combined, at the quarter end

Among the 91 comparable managers: 9 buyers (opened or added shares) and 6 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -1,149,616.

Managers listing AKTS in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

16 of 16 holders

ActionFiling
Wellington Management Group LLP1,966,244$63munder 0.1%Trimmed-350,80014 Aug 2026 (the filing on sec.gov)
Janus Henderson Group Ltd1,314,267$42munder 0.1%Trimmed-140,00014 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc763,499$25munder 0.1%Trimmed-800,69714 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)285,631$9.2munder 0.1%Trimmed-100,74813 Aug 2026 (the filing on sec.gov)
Soros Fund Management LLC100,000$3.2munder 0.1%Held014 Aug 2026 (the filing on sec.gov)
Woodline Partners LP100,000$3.2munder 0.1%Held014 Aug 2026 (the filing on sec.gov)
Renaissance Technologies LLC95,400$3.1munder 0.1%Newnew13 Aug 2026 (the filing on sec.gov)
Polen Capital Management LLC63,514$2.0munder 0.1%Newnew4 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC48,123$1.6munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC38,381$1.2munder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP30,914$996kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC25,537$823kunder 0.1%Trimmed-49,4632 Sep 2026 (the filing on sec.gov)
Tudor Investment Corp21,402$690kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Invesco Ltd14,908$480kunder 0.1%Added+2,79514 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP8,623$278kunder 0.1%Newnew14 Aug 2026 (the filing on sec.gov)
Freestone Grove Partners LP2$00.00%Newnew14 Aug 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q1 2026 to Q2 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (8)

Exited (1)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
1 in Q1 2026 to 3 in Q2 2026

Tracked managers listing it, at least.

0123Q1 2026Q2 2026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
AKTS by quarter
QuarterHoldersReported valueBuyersSellers
Q1 20261$1.8m90
Q2 20263$48m96

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 →