Charles C. Pappis
Director · ACM Research, Inc.
IndividualSelling only6 10b5-1 trades
- 2025
- Aug 27, 2026
- 4
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Charles C. Pappis files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- David H. Wang - $28.98M in ACMR purchases and sales in the last 12 months
- Mark McKechnie - $8.76M in ACMR purchases and sales in the last 12 months
- Fuping Chen - $3.98M in ACMR purchases and sales in the last 12 months
- Tracy Liu - $2.85M in ACMR purchases and sales in the last 12 months
- Lisa Feng - $2.44M in ACMR purchases and sales in the last 12 months
- Sotheara Cheav - $1.59M in ACMR purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Charles C. Pappis?
Charles C. Pappis is a corporate insider, tracked as Director of ACM Research, Inc. (ACMR). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Charles C. Pappis submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Charles C. Pappis been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($510K) across all tracked filings.
