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ACM RESEARCH INC-CLASS A (ACMR) Stock Ownership and Short Interest

USA - Nasdaq - NASDAQ:ACMR - US00108J1097 - Common Stock

30.03 USD
+0.36 (+1.21%)
Last: 11/21/2025, 8:10:54 PM
30.03 USD
0 (0%)
After Hours: 11/21/2025, 8:10:54 PM
ACMR Ownership Chart.ACMR Ownership Chart: showing Insider, Institutional ownership and shares available to the public.ACMR Ownership.InsiderInstitutionalPublic



Shares Outstanding63.86M
Float49.76M
Float Short Interest Percentage8.08%
Owners (insider)5.53%
Owners (institutional)70.05%
Owners (insider) change-19.43%
Owners (institutional) change-84.71%
ACMR Institutional Ownership HistoryACMR Institutional Ownership HistoryACMR Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 10M 20M 30M 40M
ACMR Historical Insider Transactions ChartACMR Historical Insider Buy and Sell Transactions ChartACMR Historical Insider Transactions Dec 2024 Jan 2025 Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 0 200K -200K -400K -600K
Date Name Type Shares Price Amount
Nov 12, 2025 Dun Haiping Other Disposition 755090 0.00 $ 0.00
Nov 12, 2025 Feng Lisa Option Excercise 30000 5.60 $ 168,000.00
Nov 12, 2025 Feng Lisa Open Market Sale 30000 33.27 $ 997,950.00
Sep 18, 2025 Wang Jian Option Excercise 30000 5.60 $ 168,000.00
Sep 18, 2025 Wang Jian Open Market Sale 30000 35.00 $ 1,050,000.00
Sep 18, 2025 Cheav Sotheara Option Excercise 10000 13.89 $ 138,900.00
Sep 18, 2025 Cheav Sotheara Open Market Sale 10000 35.00 $ 350,000.00
Sep 17, 2025 Liu Tracy Option Excercise 15000 1.00 $ 15,000.00
Sep 17, 2025 Liu Tracy Open Market Sale 15000 33.00 $ 495,000.00
Sep 3, 2025 Wang David H Option Excercise 130000 1.00 $ 130,000.00
Sep 3, 2025 Wang David H Open Market Sale 130000 26.61 $ 3,459,786.94
Aug 22, 2025 Cheav Sotheara Option Excercise 11152 13.89 $ 154,901.28
Aug 22, 2025 Cheav Sotheara Open Market Sale 11152 30.00 $ 334,560.00
Aug 22, 2025 Wang Jian Option Excercise 60000 5.60 $ 336,000.00
Aug 22, 2025 Wang Jian Open Market Sale 60000 31.00 $ 1,860,000.00
Jul 15, 2025 Liu Tracy Option Excercise 15000 1.00 $ 15,000.00
Jul 15, 2025 Liu Tracy Open Market Sale 15000 30.00 $ 450,000.00
Jul 7, 2025 Feng Lisa Option Excercise 15000 5.60 $ 84,000.00
Jul 7, 2025 Feng Lisa Open Market Sale 15000 28.00 $ 420,000.00
Jun 24, 2025 Feng Lisa Option Excercise 15000 5.60 $ 84,000.00
Jun 24, 2025 Feng Lisa Open Market Sale 15000 26.00 $ 390,000.00
May 21, 2025 Wang David H Option Excercise 130000 1.00 $ 130,000.00
May 21, 2025 Wang David H Open Market Sale 130000 23.15 $ 3,009,803.52
May 14, 2025 McKechnie Mark Open Market Sale 15000 25.22 $ 378,300.00
May 14, 2025 McKechnie Mark Option Excercise 15000 5.60 $ 84,000.00
Mar 17, 2025 Hu Chenming Open Market Sale 163308 30.00 $ 4,899,240.00
Mar 14, 2025 Dun Haiping Open Market Sale 9518 29.00 $ 275,976.18
Mar 12, 2025 McKechnie Mark Option Excercise 15000 5.60 $ 84,000.00
Mar 12, 2025 McKechnie Mark Open Market Sale 15000 27.42 $ 411,300.00
Mar 10, 2025 Dun Haiping Open Market Sale 15001 26.54 $ 398,126.54
Mar 3, 2025 Dun Haiping Option Excercise 25001 0.50 $ 12,500.50
Mar 3, 2025 Dun Haiping Option Excercise 482 25.94 $ 12,503.08
Mar 3, 2025 Wang David H Option Excercise 210000 0.50 $ 105,000.00
Mar 3, 2025 Wang David H Option Excercise 4048 25.94 $ 105,005.12
Feb 6, 2025 Cheav Sotheara Option Excercise 22598 13.89 $ 313,886.22
Feb 6, 2025 Cheav Sotheara Open Market Sale 22598 23.00 $ 519,754.00
Nov 26, 2024 Wang David H Open Market Sale 56250 17.89 $ 1,006,086.84