Yoon Ah OH
CIK 1889970 · SVP, Gen Counsel & Corp Sec · last filed 2026-05-18
Yoon Ah OH is a SVP, Gen Counsel & Corp Sec who has filed 22 SEC Form 4 insider transactions across 1 company since 2021. The most recent filing shows the insider had shares withheld for taxes covering $144.0K of ONTO on May 18, 2026. Across all open-market trades the lifetime net is −$770.4K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.8M 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.
$6.84M
1
22
-$770.4K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ONTO | SVP, Gen Counsel & Corp Sec | 21,110 | $323.88 | $6.84M | -$770.4K | 22 | 2026-05-18 |
Recent Filings
22 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-18 | ONTO | Tax (F) | −530 | -$144.0K | EDGAR |
| 2026-03-04 | ONTO | Mixed | +1,991 | -$86.5K | EDGAR |
| 2026-03-03 | ONTO | Mixed | +150 | -$123.9K | EDGAR |
| 2026-02-18 | ONTO | Mixed | +1,489 | -$346.5K | EDGAR |
| 2025-05-19 | ONTO | Tax (F) | −603 | -$59.1K | EDGAR |
| 2025-03-05 | ONTO | Grant (A) | +2,941 | $0 | EDGAR |
| 2025-03-03 | ONTO | Tax (F) | −304 | -$44.3K | EDGAR |
| 2025-02-19 | ONTO | Mixed | +1,633 | -$410.1K | EDGAR |
| 2025-02-12 | ONTO | Mixed | +1,329 | -$254.9K | EDGAR |
| 2024-10-28 | ONTO | Tax (F) | −1,296 | -$264.9K | EDGAR |