ONTO
ONTO INNOVATION INC. · Manufacturing · Market cap $13.2B
Insiders sold $302K net in the last 90 days ·1 seller, 0 buyers· 1 of 1 sale under Rule 10b5-1 plans· latest Form 4 filed Aug 25, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$302K
reported sales (SEC code S)
Unique Insiders
1
in the rolling window
Latest filing
Sep 5, 2026
Lynch Susan D
ONTO INNOVATION INC. (ONTO) has 26 SEC Form 4 filings (41 transaction rows) in the rolling window, disclosed by 1 distinct insider. Most recent filing: Sep 5, 2026.
Inside the rolling window, 1 insider at ONTO INNOVATION INC. reported no open-market purchases and 1 open-market sale totaling $302K. Insiders have net sold $302K over the trailing 6 months. The most recent open-market filing is a sale of 1,000 shares by Director Lynch Susan D, dated Aug 21, 2026, worth $302K.
- Industry:Semiconductors
- CEO:Michael Plisinski
- Employees:1,551
- HQ:Wilmington, MA, US
- IPO:2019-10-28
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Director | Sale | 1,000 | $302K | Aug 25 | -8.1% | SEC ↗ |
Congress trading ONTO 3 all-time
- RRep. Robert P. BresnahanSale$1,001 - $15,0002025-05-09
- RRep. Robert P. BresnahanSale$1,001 - $15,0002025-05-12
- DRep. Tom MalinowskiOther$1,001 - $15,0002020-04-30
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does ONTO have?
ONTO INNOVATION INC. (ONTO) has 26 SEC Form 4 filings (41 transaction rows) in the rolling 365-day window, disclosed by 1 distinct insider. Most recent filing: Sep 5, 2026.
When was the most recent SEC Form 4 filing for ONTO?
The most recent Form 4 filing for ONTO on Tracefour is dated Sep 5, 2026.
What is the net insider flow at ONTO over the last 6 months?
Over the trailing 180 days, insiders at ONTO have net sold $302K based on SEC Form 4 disclosures.
What is the total insider buy and sell value at ONTO in the current window?
Inside the rolling window, insiders at ONTO bought $0 and sold $302K based on SEC Form 4 filings.
Can I get alerts for ONTO insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at ONTO INNOVATION INC. (ONTO). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
ONTO INNOVATION INC. is in the Manufacturing sector.