Charles C. Pappis is Group VP & GM AGS at APPLIED MATERIALS INC /DE (AMAT). They have made 8 open-market trades across 2 companies since 2010, most recently 2026-04-17.
CIK 0001475345
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| AMAT | 433,501 | $177.4M |
| ACMR | 5,000 | $265K |
| Total | $177.7M |
Shares reported on the most recent Form 4, priced at the 2026-04-21 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ACMR | SELL · 10b5-1 | 2026-04-17 | 2026-04-21 | $52.00 | $260K | -0.8% | +36.3% | +57.3% |
| ACMR | SELL | 2026-03-05 | 2026-03-09 | $50.09 | $250K | -1.2% | -2.2% | +70.3% |
| AMAT | SELL | 2013-07-01 | 2013-07-03 | $14.91 | $323K | -11.5% | +0.9% | +0.9% |
| AMAT | SELL | 2012-12-21 | 2012-12-21 | $11.34 | $408K | -11.5% | +0.9% | +0.9% |
| AMAT | SELL | 2011-12-20 | 2011-12-21 | $10.62 | $399K | -11.5% | +0.9% | +0.9% |
| AMAT | SELL | 2011-09-09 | 2011-09-12 | $10.79 | $61K | -11.5% | +0.9% | +0.9% |
| AMAT | SELL | 2011-04-04 | 2011-04-06 | $15.37 | $333K | -11.5% | +0.9% | +0.9% |
| AMAT | SELL | 2011-01-03 | 2011-01-05 | $14.26 | $422K | -11.5% | +0.9% | +0.9% |
| AMAT | SELL | 2010-09-07 | 2010-09-08 | $10.74 | $146K | -11.5% | +0.9% | +0.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.