Skip to content
sellWeak10b5-1 plan

Mark McKechnie sold $225k of ACMR

See Remarks at ACM Research, Inc.. 11,250 shares at an average of $20.00, traded Oct 11, 2023, filed Oct 13, 2023.

Warning score
12
Value
$225k
11,250 shares
Holdings after
900
-93% from before
From 52-week low
+237%
low $5.96, close $20.07
From 52-week high
0%
high $20.07, as of Oct 11, 2023

Score components

  • Role
    Officer
    +15
  • Trade size
    $225k at market
    +12
  • Share of holdings sold
    Sold 93% of holdings
    +20
  • Cluster
    No other insider selling within 14 days
    0
  • 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.

This signal so far: 1m -10.4%, 3m +14.8%, 6m +50.6%.

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 Oct 13, 2023: +275.6%SPY +87.0% · excess +188.7%

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 0001140361-23-048184, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Oct 11, 2023MOption exercise
Class A Common Stock10b5-1
+11,250$4.55$51k12,150Oct 13, 2023
Oct 11, 2023SOpen-market sale
Class A Common Stock10b5-1
-11,250$20.00$225k900Oct 13, 2023
Oct 11, 2023MOption exercise
Stock Optionderivative10b5-1
-11,250$0.00$018,750Oct 13, 2023

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%
33Weak
ACMRsell 210b5-1
ACM Research, Inc.
Mark McKechnie
See Remarks
$4.3M
55,199 shares
-98%
24Weak
ACMRsell 210b5-1
ACM Research, Inc.
Haiping Dun
director
$406k
5,000 shares
-100%
18Weak
ACMRsell 210b5-1
ACM Research, Inc.
David H Wang
See Remarks
$8.8M
100,002 shares
-12%
18Weak
ACMRsell 210b5-1
ACM Research, Inc.
Sotheara Cheav
See remarks
$1.6M
18,750 shares
-17%
15Weak
ACMRsell10b5-1
ACM Research, Inc.
Haiping Dun
director
$331k
5,000 shares
-100%
13Weak
ACMRsell10b5-1
ACM Research, Inc.
Charles C Pappis
director
$260k
5,000 shares
-100%
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%

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.

Mark McKechnie sold $225k of ACMR | InsiderTell