Insider · CIK 0001918546
May Su
Files at ONTO (ONTO INNOVATION INC.). First filing -, latest -.
May Su files SEC Form 4 as director at ONTO (ONTO INNOVATION INC.). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.
A track record needs three past buys with six months of prices behind them; May Su has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, 2 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| May 20, 2026 | ONTO ONTO INNOVATION INC. | AGrant or award Common Stock | +761 | $0.00 | $0 | 7,984 | May 22, 2026 |
| May 21, 2025 | ONTO ONTO INNOVATION INC. | AGrant or award Common Stock | +2,114 | $0.00 | $0 | 7,223 | May 23, 2025 |
Questions about May Su
Answered from the filings on this page, as of the latest one.
Is May Su buying or selling?
May Su has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did May Su's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and May Su has 0.
Where does May Su file Form 4?
May Su has filed Form 4 at ONTO (ONTO INNOVATION INC.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.