Insider · CIK 0001475345
Charles C Pappis
director
Files at ACMR (ACM Research, Inc.). First filing Mar 9, 2026, latest Mar 9, 2026.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 1
$0 bought, $250k sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
ACMR: ACM Research, Inc.
ACMROct 9, 2026 · close 71.37
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 28Weak | ACM Research, Inc. | $250k 5,000 shares | -100% | +164% from low-32% from high |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Mar 5, 2026 | ACMR ACM Research, Inc. | MOption exercise Class A Common Stock10b5-1 | +5,000 | $29.18 | $146k | 5,000 | Mar 9, 2026 |
| Mar 5, 2026 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -5,000 | $50.09 | $250k | 0 | Mar 9, 2026 |
| Mar 5, 2026 | ACMR ACM Research, Inc. | MOption exercise Stock Optionderivative10b5-1 | -5,000 | $0.00 | $0 | 5,000 | Mar 9, 2026 |
| Aug 12, 2025 | ACMR ACM Research, Inc. | AGrant or award Stock Optionderivative | +20,000 | $0.00 | $0 | 20,000 | Aug 14, 2025 |
| Mar 15, 2025 | ACMR ACM Research, Inc. | AGrant or award Stock Optionderivative | +10,000 | $0.00 | $0 | 10,000 | May 21, 2025 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.