Follow-The-Filings

Security · featured owners

AKTS Aktis Oncology Inc.

Health Care COM Equity as of 2026 Q2 among managers we track

  • 3 Owners
  • Max 2.5%
  • $21M
  • 1 new 1 add

AKTS (Aktis Oncology Inc.) is held in 3 featured 13F books as of 2026 Q2. David Witzke - Avidity Partners Management is the largest tracked holder by portfolio weight (2.5%). Figures are as-filed 13F, not free float.

Who owns this now

Largest portfolio weights among featured holders · max 2.5% (David Witzke - Avidity Partners Management) · not free-float ownership

  1. David Witzke add 2.5%
  2. George Soros 0.04%
  3. Polen Capital Management new 0.02%

holders

sorted by value · long equity only · current book 2026 Q2 · open a manager for their book

history
David Witzke - Avidity Partners Management 2026 Q2 2.5% Add +3.3% 484,200 $16M history
George Soros - Soros Fund Management 2026 Q2 0.04% Hold 100,000 $3M history
Polen Capital Management 2026 Q2 0.02% New 0.02% 63,514 $2M history

3 current · options excluded

SEC filings

Recent issuer filings from EDGAR · 12 shown · open Filing / Doc on SEC.gov

Filed Form Detail Links
8-K 2.02,9.01 Filing Doc
10-Q Filing Doc
8-K 2.02,9.01 Filing Doc
10-Q Filing Doc
8-K 5.02,7.01,9.01 Filing Doc
10-K Filing Doc
8-K 2.02,9.01 Filing Doc
8-K 5.03,9.01 Filing Doc
424B4 Filing Doc
S-1/A Filing Doc
S-1/A Filing Doc
S-1 Filing Doc

Insider forms

Form 3 / 4 / 5 from EDGAR · 9 rows shown

Filed Form Detail Links
4 Period Jul 20, 2026 Filing Doc
4 Period Jul 17, 2026 Filing Doc
4 Period Jul 8, 2026 · 2 forms Filing Doc
3 Period Apr 15, 2026 Filing Doc
4 Period Apr 15, 2026 Filing Doc
3 Period Jan 12, 2026 Filing Doc
4 Period Jan 12, 2026 · 3 forms Filing Doc
4 Period Jan 12, 2026 · 4 forms Filing Doc
3 Period Jan 8, 2026 · 3 forms Filing Doc

Updated 28 days ago Source: SEC EDGAR submissions All on EDGAR

ownership over time

filing count by report period · click a bar for that quarter’s holders