The chart above plots the price of ONTO over the range selected — one day to the full history — drawn by TradingView from their own data. Our own licensed end-of-day series holds 51 sessions over that window: $269 on 10 June 2026 through $293 on 21 August 2026.
ONTO has no Form 4 filing in the last 90 days, so there is no summary for that window. The most recent filings we hold are below, the newest dated 2 December 2025.
Compensation mechanics
Share grants, option exercises, tax withholding and transfers. They reach the same Form 4 as a trade, but they are not the insider buying or selling on the open market, so no purchase or sale value applies to them.
DateInsiderTypeSharesValue
02 Dec 2025Dolev IdoEVP, Prod Solutions GrpTax withheld3,183$490K
03 Oct 2025YALDAEI RAMILChief Operating OfficerTax withheld594$85K
02 Sep 2025ROBERTS BRIAN KChief Financial OfficerAward21,175
14 of the 45 institutional funds we track reported a ONTO position for the quarter ended 30 Jun 2026 — a combined $1.6B; the latest of those filings landed 02 Sep 2026.