Skip to content
sellWeak cluster of 210b5-1 plan

Sotheara Cheav sold $520k of ACMR

See remarks at ACM Research, Inc.. 22,598 shares at an average of $23.00, traded Feb 6, 2025, filed Feb 10, 2025.

Warning score
11
Value
$520k
22,598 shares
Holdings after
100,002
-18% from before
From 52-week low
+63%
low $14.10, close $23.01
From 52-week high
-2%
high $23.59, as of Feb 6, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $520k at market
    +18
  • Share of holdings sold
    Sold 18% of holdings
    +5
  • Cluster
    2 insiders selling within 14 days
    +8
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -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 Feb 10, 2025: +205.5%SPY +31.2% · excess +174.3%

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 0001140361-25-003749, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Feb 6, 2025MOption exercise
Class A Common Stock10b5-1
+10,000$13.89$139k110,002Feb 10, 2025
Feb 6, 2025MOption exercise
Class A Common Stock10b5-1
+12,598$13.89$175k122,600Feb 10, 2025
Feb 6, 2025SOpen-market sale
Class A Common Stock10b5-1
-22,598$23.00$520k100,002Feb 10, 2025
Feb 6, 2025MOption exercise
Stock Optionderivative10b5-1
-10,000$0.00$090,000Feb 10, 2025
Feb 6, 2025MOption exercise
Stock Optionderivative10b5-1
-12,598$0.00$077,402Feb 10, 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%
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%
15Weak
ACMRsell10b5-1
ACM Research, Inc.
Lisa Feng
See remarks
$998k
30,000 shares
-46%
25Weak
ACMRsell 310b5-1
ACM Research, Inc.
Jian Wang
See remarks
$1.1M
30,000 shares
-11%
18Weak
ACMRsell 410b5-1
ACM Research, Inc.
Tracy Liu
director
$495k
15,000 shares
-12%
10Weak
ACMRsell 310b5-1
ACM Research, Inc.
Sotheara Cheav
See remarks
$350k
10,000 shares
-9%
25Weak
ACMRsell 410b5-1
ACM Research, Inc.
David H Wang
See Remarks
$3.5M
130,000 shares
-18%
25Weak
ACMRsell 310b5-1
ACM Research, Inc.
Jian Wang
See remarks
$1.9M
60,000 shares
-21%

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.

Sotheara Cheav sold $520k of ACMR | InsiderTell