May Su
CIK 1918546 · last filed 2026-05-22
May Su is a corporate insider who has filed 5 SEC Form 4 insider transactions across 1 company since 2022. The most recent filing, for ONTO, was dated May 22, 2026. Current disclosed insider exposure totals $2.6M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$2.59M
1
5
$0
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ONTO | Director | 7,984 | $323.88 | $2.59M | $0 | 5 | 2026-05-22 |
Recent Filings
5 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-22 | ONTO | Grant (A) | +761 | $0 | EDGAR |
| 2025-05-23 | ONTO | Grant (A) | +2,114 | $0 | EDGAR |
| 2024-05-23 | ONTO | Grant (A) | +809 | $0 | EDGAR |
| 2023-05-11 | ONTO | Grant (A) | +2,200 | $0 | EDGAR |
| 2022-05-12 | ONTO | Grant (A) | +2,100 | $0 | EDGAR |