Insider Transactions in Q4 2025 at Acm Research, Inc. (ACMR)
Insider Transaction List (Q4 2025)
| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Dec 08
2025
|
Mark Mc Kechnie |
SELL
Open market or private sale
|
Direct |
22,500
-96.15%
|
$787,500
$35.45 P/Share
|
|
Dec 08
2025
|
Mark Mc Kechnie |
BUY
Exercise of conversion of derivative security
|
Direct |
22,500
+49.02%
|
$562,500
$25.45 P/Share
|
|
Dec 04
2025
|
Mark Mc Kechnie |
SELL
Open market or private sale
|
Direct |
8,750
-66.44%
|
$288,750
$33.88 P/Share
|
|
Dec 04
2025
|
Mark Mc Kechnie |
BUY
Exercise of conversion of derivative security
|
Direct |
8,750
+47.55%
|
$35,000
$4.55 P/Share
|
|
Dec 04
2025
|
David H Wang |
SELL
Open market or private sale
|
Direct |
60,000
-3.53%
|
$1,980,000
$33.97 P/Share
|
|
Dec 04
2025
|
David H Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
60,000
+6.5%
|
$60,000
$1.0 P/Share
|
|
Dec 03
2025
|
David H Wang |
SELL
Open market or private sale
|
Direct |
70,000
-4.02%
|
$2,310,000
$33.31 P/Share
|
|
Dec 03
2025
|
David H Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
70,000
+7.43%
|
$70,000
$1.0 P/Share
|
|
Dec 03
2025
|
Fuping Chen |
SELL
Open market or private sale
|
Direct |
20,000
-99.25%
|
$660,000
$33.31 P/Share
|
|
Dec 03
2025
|
Fuping Chen |
BUY
Exercise of conversion of derivative security
|
Direct |
20,000
+50.0%
|
$20,000
$1.77 P/Share
|
|
Dec 02
2025
|
Fuping Chen |
SELL
Open market or private sale
|
Direct |
100,000
-100.0%
|
$3,300,000
$33.2 P/Share
|
|
Dec 02
2025
|
Fuping Chen |
BUY
Exercise of conversion of derivative security
|
Direct |
100,000
+50.0%
|
$100,000
$1.77 P/Share
|
|
Nov 13
2025
|
Lisa Feng |
SELL
Open market or private sale
|
Direct |
15,000
-23.08%
|
$495,000
$33.77 P/Share
|
|
Nov 13
2025
|
Lisa Feng |
BUY
Exercise of conversion of derivative security
|
Direct |
15,000
+18.75%
|
$75,000
$5.6 P/Share
|
|
Nov 12
2025
|
Haiping Dun |
SELL
Bona fide gift
|
Direct |
755,090
-100.0%
|
-
|
|
Nov 12
2025
|
Lisa Feng |
SELL
Open market or private sale
|
Direct |
15,000
-23.08%
|
$480,000
$32.76 P/Share
|
|
Nov 12
2025
|
Lisa Feng |
BUY
Exercise of conversion of derivative security
|
Direct |
15,000
+18.75%
|
$75,000
$5.6 P/Share
|