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sellModerate cluster of 410b5-1 plan

Chenming Hu sold $4.9M of ACMR

director at ACM Research, Inc.. 163,308 shares at an average of $30.00, traded Mar 17, 2025, filed Mar 19, 2025.

Warning score
55
Value
$4.9M
163,308 shares
Holdings after
100,002
-62% from before
From 52-week low
+113%
low $14.10, close $29.98
From 52-week high
0%
high $29.98, as of Mar 17, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $4.9M at market
    +25
  • Share of holdings sold
    Sold 62% of holdings
    +20
  • Cluster
    4 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

ACMROct 9, 2026 · close 71.37
Since filing Mar 19, 2025: +144.3%SPY +40.0% · excess +104.3%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001140361-25-009529, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 17, 2025SOpen-market sale
Class A Common Stock10b5-1
-163,308$30.00$4.9M100,002Mar 19, 2025

Related signals

Other insiders at ACM Research, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
10Weak
ACMRsell10b5-1
ACM Research, Inc.
David H Wang
See Remarks
$11M
140,000 shares
-16%
25Weak
ACMRsell 610b5-1
ACM Research, Inc.
David H Wang
See Remarks
$5.2M
110,000 shares
-13%
40Moderate
ACMRsell 610b5-1
ACM Research, Inc.
Mark McKechnie
See Remarks
$4.5M
98,551 shares
-162%
30Weak
ACMRsell 610b5-1
ACM Research, Inc.
Tracy Liu
director
$2.9M
60,000 shares
-39%
27Weak
ACMRsell 610b5-1
ACM Research, Inc.
Haiping Dun
director
$217k
5,000 shares
-100%
30Weak
ACMRsell 610b5-1
ACM Research, Inc.
Lisa Feng
See remarks
$1.4M
30,000 shares
-46%
28Weak
ACMRsell 610b5-1
ACM Research, Inc.
Charles C Pappis
director
$250k
5,000 shares
-100%
40Moderate
ACMRsell 310b5-1
ACM Research, Inc.
Mark McKechnie
See Remarks
$1.1M
31,250 shares
-324%
25Weak
ACMRsell 310b5-1
ACM Research, Inc.
David H Wang
See Remarks
$4.4M
130,000 shares
-15%
40Moderate
ACMRsell 310b5-1
ACM Research, Inc.
Fuping Chen
See remarks
$4.0M
120,000 shares
-120%

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.

Chenming Hu sold $4.9M of ACMR | InsiderTell