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John Tseng-Chung Lee: stock trades
President & CEO · corporate insider. 1 disclosed trades across 1 tickers, latest filing 2026-08-17. Source: SEC Form 4 filings.
Buys
0
Sells
1
Tickers
1
Disclosed trades
Insiders report exact share counts; the value is shares times the reported price when the filing includes one. Sells may be pre-scheduled 10b5-1 plans.
| Traded | Disclosed | Ticker | Side | Amount | Role |
|---|---|---|---|---|---|
| 2026-08-14 | 2026-08-17 | MKSI | sell | $3,020,100 | officer |
Disclosures are informational and delayed; they are not investment advice. Browse all tracked figures or the live Smart Money feed.