Latest Insider Transactions at Acm Research, Inc. (ACMR)
This section provides a real-time view of insider transactions for Acm Research, Inc. (ACMR). The data is sourced from Form 4 filings with the SEC, which are filed by insiders of ACM Research, Inc. to disclose their transactions in the company's securities. By reviewing this information, investors can gain insights into the trading activity of ACM Research, Inc.'s insiders and make more informed investment decisions.
Insider Transaction List
| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
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
|
|
Sep 18
2025
|
Sotheara Cheav |
SELL
Open market or private sale
|
Direct |
10,000
-9.09%
|
$350,000
$35.0 P/Share
|
|
Sep 18
2025
|
Sotheara Cheav |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+8.33%
|
$130,000
$13.89 P/Share
|
|
Sep 18
2025
|
Jian Wang |
SELL
Open market or private sale
|
Direct |
30,000
-10.59%
|
$1,050,000
$35.0 P/Share
|
|
Sep 18
2025
|
Jian Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
30,000
+9.58%
|
$150,000
$5.6 P/Share
|
|
Sep 17
2025
|
Tracy Liu |
SELL
Open market or private sale
|
Direct |
15,000
-11.93%
|
$495,000
$33.0 P/Share
|
|
Sep 17
2025
|
Tracy Liu |
BUY
Exercise of conversion of derivative security
|
Direct |
15,000
+10.66%
|
$15,000
$1.0 P/Share
|
|
Sep 08
2025
|
David H Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
130,000
+13.94%
|
$130,000
$1.0 P/Share
|
|
Sep 04
2025
|
David H Wang |
SELL
Open market or private sale
|
Direct |
60,000
-8.19%
|
$1,560,000
$26.44 P/Share
|
|
Sep 04
2025
|
David H Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
60,000
+7.57%
|
$60,000
$1.0 P/Share
|
|
Sep 03
2025
|
David H Wang |
SELL
Open market or private sale
|
Direct |
70,000
-4.74%
|
$1,890,000
$27.02 P/Share
|
|
Sep 03
2025
|
David H Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
70,000
+8.61%
|
$70,000
$1.0 P/Share
|
|
Aug 25
2025
|
Jian Wang |
SELL
Open market or private sale
|
Direct |
30,000
-10.59%
|
$960,000
$32.0 P/Share
|
|
Aug 25
2025
|
Jian Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
30,000
+9.58%
|
$150,000
$5.6 P/Share
|
|
Aug 22
2025
|
Jian Wang |
SELL
Open market or private sale
|
Direct |
30,000
-10.59%
|
$900,000
$30.0 P/Share
|
|
Aug 22
2025
|
Jian Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
30,000
+9.58%
|
$150,000
$5.6 P/Share
|
|
Aug 22
2025
|
Sotheara Cheav |
SELL
Open market or private sale
|
Direct |
11,152
-10.03%
|
$334,560
$30.0 P/Share
|
|
Aug 22
2025
|
Sotheara Cheav |
BUY
Exercise of conversion of derivative security
|
Direct |
11,152
+9.12%
|
$144,976
$13.89 P/Share
|
|
Jul 15
2025
|
Tracy Liu |
SELL
Open market or private sale
|
Direct |
15,000
-11.93%
|
$450,000
$30.0 P/Share
|
|
Jul 15
2025
|
Tracy Liu |
BUY
Exercise of conversion of derivative security
|
Direct |
15,000
+10.66%
|
$15,000
$1.0 P/Share
|
|
Jul 07
2025
|
Lisa Feng |
SELL
Open market or private sale
|
Direct |
15,000
-23.08%
|
$420,000
$28.0 P/Share
|
|
Jul 07
2025
|
Lisa Feng |
BUY
Exercise of conversion of derivative security
|
Direct |
15,000
+18.75%
|
$75,000
$5.6 P/Share
|
|
Jun 24
2025
|
Lisa Feng |
SELL
Open market or private sale
|
Direct |
15,000
-23.08%
|
$390,000
$26.0 P/Share
|
|
Jun 24
2025
|
Lisa Feng |
BUY
Exercise of conversion of derivative security
|
Direct |
15,000
+18.75%
|
$75,000
$5.6 P/Share
|
|
May 22
2025
|
David H Wang |
SELL
Open market or private sale
|
Direct |
60,000
-8.19%
|
$1,320,000
$22.63 P/Share
|
|
May 22
2025
|
David H Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
60,000
+7.57%
|
$60,000
$1.0 P/Share
|
|
May 21
2025
|
David H Wang |
SELL
Open market or private sale
|
Direct |
70,000
-4.71%
|
$1,610,000
$23.82 P/Share
|
|
May 21
2025
|
David H Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
70,000
+8.61%
|
$70,000
$1.0 P/Share
|
|
May 14
2025
|
Mark Mc Kechnie |
SELL
Open market or private sale
|
Direct |
15,000
-94.34%
|
$375,000
$25.22 P/Share
|
|
May 14
2025
|
Mark Mc Kechnie |
BUY
Exercise of conversion of derivative security
|
Direct |
15,000
+48.54%
|
$75,000
$5.6 P/Share
|
|
Mar 17
2025
|
Chenming Hu |
SELL
Open market or private sale
|
Direct |
163,308
-62.02%
|
$4,899,240
$30.0 P/Share
|
|
Mar 14
2025
|
Haiping Dun |
SELL
Open market or private sale
|
Direct |
9,518
-0.62%
|
$266,504
$28.78 P/Share
|
|
Mar 13
2025
|
David H Wang |
SELL
Open market or private sale
|
Direct |
37,500
-2.64%
|
$1,012,500
$27.47 P/Share
|
|
Mar 12
2025
|
Mark Mc Kechnie |
SELL
Open market or private sale
|
Direct |
15,000
-94.34%
|
$405,000
$27.42 P/Share
|
|
Mar 12
2025
|
Mark Mc Kechnie |
BUY
Exercise of conversion of derivative security
|
Direct |
15,000
+48.54%
|
$75,000
$5.6 P/Share
|
|
Mar 12
2025
|
David H Wang |
SELL
Open market or private sale
|
Direct |
37,500
-5.02%
|
$1,012,500
$27.42 P/Share
|
|
Mar 11
2025
|
David H Wang |
SELL
Open market or private sale
|
Direct |
56,250
-7.0%
|
$1,462,500
$26.57 P/Share
|
|
Mar 10
2025
|
Haiping Dun |
SELL
Open market or private sale
|
Direct |
15,001
-1.92%
|
$390,026
$26.54 P/Share
|
|
Mar 03
2025
|
David H Wang |
SELL
Payment of exercise price or tax liability
|
Direct |
4,048
-0.5%
|
$101,200
$25.94 P/Share
|
|
Mar 03
2025
|
David H Wang |
BUY
Exercise of conversion of derivative security
|
Direct |
210,000
+20.63%
|
$0
$0.5 P/Share
|
|
Mar 03
2025
|
Haiping Dun |
SELL
Payment of exercise price or tax liability
|
Direct |
482
-0.06%
|
$12,050
$25.94 P/Share
|
|
Mar 03
2025
|
Haiping Dun |
BUY
Exercise of conversion of derivative security
|
Direct |
25,001
+3.11%
|
$0
$0.5 P/Share
|