Charles C. Pappis

Executive

Director

Insider activity · 24 months0 buys1 saleCumulative net flow

Nov 24 · 0 buys · 0 salesDec 24 · 0 buys · 0 salesJan 25 · 0 buys · 0 salesFeb 25 · 0 buys · 0 salesMar 25 · 0 buys · 0 salesApr 25 · 0 buys · 0 salesMay 25 · 0 buys · 0 salesJun 25 · 0 buys · 0 salesJul 25 · 0 buys · 0 salesAug 25 · 0 buys · 0 salesSept 25 · 0 buys · 0 salesOct 25 · 0 buys · 0 salesNov 25 · 0 buys · 0 salesDec 25 · 0 buys · 0 salesJan 26 · 0 buys · 0 salesFeb 26 · 0 buys · 0 salesMar 26 · 0 buys · 0 salesApr 26 · 0 buys · 1 saleMay 26 · 0 buys · 0 salesJun 26 · 0 buys · 0 salesJul 26 · 0 buys · 0 salesAug 26 · 0 buys · 0 salesSept 26 · 0 buys · 0 salesOct 26 · 0 buys · 0 sales

Total declarations

Company

▲ Purchases (0 ops.)

—

▼ Sales (1 ops.)

€221k

Latest filing published 21 Apr 2026 for ACM Research, Inc., €124k. Read the official filing

Filing timeline

BuySale

Charles C. Pappis

Insider track record

Disclosed buys

Disclosed sells

Not enough buy signals with a settled T+90 horizon to measure a track record yet.

Signal history

Charles C. Pappis: trading record in brief

This profile gathers the share dealings of Charles C. Pappis in ACM Research, Inc., where the filings describe the role as senior executive. The record holds 3 filings, for trades running from 5 March 2026 to 17 April 2026.

Sales make up the whole of the open-market record (1 sale, €221k). Outside the open market, there are 2 option exercises.

The latest filing, published on 21 April 2026, reports an option exercise of €124k in ACM Research, Inc. The median gap between a trade and its publication by SEC (Form 4) is 4 days. The legal deadline for a Form 4 is two business days after the transaction. Keep in mind that insiders sell for many reasons unrelated to the outlook, from tax bills to estate planning. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.