Form4insider filings, from the source

Insider · CIK 0002112397

Helena Helmersson

Files at: ONON. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 21, 2026 AForm 4 →Sep 23, 8:25 am EDTOn Holding AGONON2,433——6,822—

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.