Form4insider filings, from the source

Company · CIK 0002035832 · SIC 2834 — Pharmaceutical Preparations · Nasdaq

Aktis Oncology, Inc. · AKTS

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $3.2M · 5net −$3.2M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesJul 7Jul 20Aug 2Aug 15Aug 28Sep 10Sep 24

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 23, 2026 SForm 4 →Sep 24, 4:05 pm EDTAkos CzibereChief Medical Officer12,500$20.69$258,6210−100%10b5-1
Sep 23, 2026 MForm 4 →Sep 24, 4:05 pm EDTAkos CzibereChief Medical Officer12,500$4.95$61,87512,500—10b5-1
Jul 20, 2026 SForm 4 →Jul 21, 8:50 pm EDTKen HerrmannDirector4,856$24.56$119,2740−100%
Jul 20, 2026 MForm 4 →Jul 21, 8:50 pm EDTKen HerrmannDirector4,856$0.5888$2,8594,856—
Jul 17, 2026 SForm 4 →Jul 20, 5:34 pm EDTKen HerrmannDirector3,065$25.21$77,2590−100%
Jul 17, 2026 MForm 4 →Jul 20, 5:34 pm EDTKen HerrmannDirector3,065$0.08$2453,065—
Jul 8, 2026 SForm 4 →Jul 10, 6:11 am EDTShulamit Ron-BiggerChief Operating Officer50,000$27.75$1,387,5580−100%
Jul 8, 2026 MForm 4 →Jul 10, 6:11 am EDTShulamit Ron-BiggerChief Operating Officer50,000$3.66$183,00050,000—
Jul 8, 2026 SForm 4 →Jul 10, 6:10 am EDTAkos CzibereChief Medical Officer50,000$27.77$1,388,7010−100%
Jul 8, 2026 MForm 4 →Jul 10, 6:10 am EDTAkos CzibereChief Medical Officer50,000$4.95$247,50050,000—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 23, 2026 MForm 4 →Sep 24, 4:05 pm EDTAkos CzibereChief Medical Officer12,500——208,718—10b5-1
Jul 20, 2026 MForm 4 →Jul 21, 8:50 pm EDTKen HerrmannDirector4,856——18,364—
Jul 17, 2026 MForm 4 →Jul 20, 5:34 pm EDTKen HerrmannDirector3,065——3,506—
Jul 8, 2026 MForm 4 →Jul 10, 6:11 am EDTShulamit Ron-BiggerChief Operating Officer50,000——217,888—
Jul 8, 2026 MForm 4 →Jul 10, 6:10 am EDTAkos CzibereChief Medical Officer50,000——221,218—