Charles C Pappis insider trades: ACM Research (ACMR) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Charles reports to the SEC
Open-market buys and sales
8 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 5, 2026 | ACMR | ↓ Sell | 5,000 | $50.09 | $250K | Direct | Mar 9, 2026 (4d) |
| Jul 1, 2013 | AMAT | ↓ Sell | 21,667 | $14.91 | $323K | Direct | Jul 3, 2013 (2d) |
| Dec 21, 2012 | AMAT | ↓ Sell | 36,012 | $11.34 | $408K | Direct | Dec 21, 2012 (0d) |
| Dec 20, 2011 | AMAT | ↓ Sell | 37,583 | $10.62 | $399K | Direct | Dec 21, 2011 (1d) |
| Sep 9, 2011 | AMAT | ↓ Sell | 5,698 | $10.79 | $61K | Direct | Sep 12, 2011 (3d) |
| Apr 4, 2011 | AMAT | ↓ Sell | 21,667 | $15.37 | $333K | Direct | Apr 6, 2011 (2d) |
| Jan 3, 2011 | AMAT | ↓ Sell | 29,580 | $14.26 | $422K | Direct | Jan 5, 2011 (2d) |
| Sep 7, 2010 | AMAT | ↓ Sell | 13,612 | $10.74 | $146K | Direct | Sep 8, 2010 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ACMR insiders
Open-market trades in the last 12 months
About Charles C Pappis's insider trades
Charles C Pappis is an insider at ACM Research (ACMR). Since Sep 7, 2010, Charles has reported no open-market purchases and 8 sales worth $2.3M on SEC Form 4. In the last 12 months: 1 sale ($250K).
Their filings also include grants and awards (7 filings), shares withheld for taxes (5 filings), option exercises (4 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ACMR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.