InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (1 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
1
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Discover the detailed record of transactions filed by OH Yoon Ah, Conseiller Juridique. Director active across 1 company, notably Onto Innovation INC.. Cumulatively, 21 reports have been logged. Breakdown: 0 buy · 1 sell. Total volume traded: €429k. Activity tracked since 25 October 2021. The latest transaction was disclosed on 2 March 2026 (Attribution). Regulator: SEC (Form 4). The full history is accessible without signup.
Companies and markets linked to OH Yoon Ah
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations21 total
2,408 shares0Common StockSEC:0001889970-26-000006:0
724 shares0Common StockSEC:0001889970-26-000004:0
3,084 shares0Common StockSEC:0001889970-26-000002:0
603 shares@ US$98.043.7% of flowCommon StockSEC:0002022859-25-000049:0
2,941 shares0Common StockSEC:0002022859-25-000040:0
304 shares@ US$145.663.0% of flowCommon StockSEC:0002022859-25-000030:0
3,956 shares0Common StockSEC:0002022859-25-000024:0
375 shares@ US$183.284.6% of flowCommon StockSEC:0002022859-25-000013:0
1,296 shares@ US$204.3917.0% of flowCommon StockSEC:0002022859-24-000038:0
603 shares@ US$233.639.0% of flowCommon StockSEC:0002022859-24-000003:0
2,685 shares@ US$173.9629.8% of flowCommon StockSEC:0001257815-24-000037:0
1,883 shares0Common StockSEC:0001257815-24-000030:0
493 shares@ US$173.085.5% of flowCommon StockSEC:0001257815-24-000017:0
1,395 shares@ US$180.0116.2% of flowCommon StockSEC:0001257815-24-000006:0
795 shares@ US$111.165.8% of flowCommon StockSEC:0001257815-23-000098:0
3,746 shares0Common StockSEC:0001257815-23-000059:0
3,955 shares0Common StockSEC:0001257815-23-000032:0
318 shares@ US$80.901.7% of flowCommon StockSEC:0001257815-23-000017:0
787 shares@ US$67.303.7% of flowCommon StockSEC:0001407682-22-000067:0
2,722 shares0Common StockSEC:0001407682-22-000031:0
8,043 shares0Common StockSEC:0001407682-21-000126:0
21 of 21 declarations
About OH Yoon Ah
OH Yoon Ah is Conseiller Juridique at Onto Innovation INC., where the listed role is SVP, Gen Counsel & Corp Sec. She has 21 filings in total, and across the sampled recent filings the buy amount is EUR 0 and the sell amount is EUR 429169, with transactions ranging from 2021-10-26 to 2026-03-04.
