| ACMR-OWNER-VANGUARD-CAPITAL-MANAGEMENT-LLC |
VANGUARD CAPITAL MANAGEMENT LLC |
95%
|
13F/ownership overlay lists VANGUARD CAPITAL MANAGEMENT LLC; shares held 4,528,674; value $178.2B; as of 2026-03-31. |
| ACMR-OWNER-VANGUARD-PORTFOLIO-MANAGEMENT-LLC |
VANGUARD PORTFOLIO MANAGEMENT LLC |
95%
|
13F/ownership overlay lists VANGUARD PORTFOLIO MANAGEMENT LLC; shares held 2,203,831; value $86.7B; as of 2026-03-31. |
| ACMR-OWNER-JANUS-HENDERSON-GROUP-PLC |
JANUS HENDERSON GROUP PLC |
95%
|
13F/ownership overlay lists JANUS HENDERSON GROUP PLC; shares held 2,171,268; value $85.4B; as of 2026-03-31. |
| ACMR-OWNER-STATE-STREET-CORP |
STATE STREET CORP |
95%
|
13F/ownership overlay lists STATE STREET CORP; shares held 2,006,116; value $78.9B; as of 2026-03-31. |
| ACMR-OWNER-WCM-INVESTMENT-MANAGEMENT-LLC |
WCM INVESTMENT MANAGEMENT, LLC |
95%
|
13F/ownership overlay lists WCM INVESTMENT MANAGEMENT, LLC; shares held 1,860,874; value $70.6B; as of 2026-03-31. |
| ACMR-OWNER-PEAK6-LLC |
PEAK6 LLC |
95%
|
13F/ownership overlay lists PEAK6 LLC; shares held 3,215,300; value $117.4B; as of 2026-03-31. |
| ACMR-OWNER-BLACKROCK-INC |
BlackRock, Inc. |
95%
|
13F/ownership overlay lists BlackRock, Inc.; shares held 7,984,847; ownership 56.32%; value $314.2B; as of 2026-03-31. |
| ACMR-OWNER-CITIGROUP-INC |
CITIGROUP INC |
95%
|
13F/ownership overlay lists CITIGROUP INC; shares held 1,591,892; value $62.6B; as of 2026-03-31. |
| ACMR-OWNER-GEODE-CAPITAL-MANAGEMENT-LLC |
GEODE CAPITAL MANAGEMENT, LLC |
95%
|
13F/ownership overlay lists GEODE CAPITAL MANAGEMENT, LLC; shares held 1,371,227; value $54.0B; as of 2026-03-31. |
| ACMR-OWNER-MORGAN-STANLEY |
MORGAN STANLEY |
95%
|
13F/ownership overlay lists MORGAN STANLEY; shares held 3,461,977; value $136.2B; as of 2026-03-31. |
| ACMR |
ACM Research, Inc. |
82%
|
beneficial ownership event from 2026-03-31. |
| ACMR |
ACM Research, Inc. |
82%
|
Dun Haiping | 10% Owner | sell | 4100 shares |
| ACMR |
ACM Research, Inc. |
82%
|
beneficial ownership event from 2026-03-31. |
| ACMR |
ACM Research, Inc. |
82%
|
beneficial ownership event from 2026-03-31. |
| ACMR |
ACM Research, Inc. |
82%
|
beneficial ownership event from 2026-03-31. |
| ACMR |
ACM Research, Inc. |
82%
|
beneficial ownership event from 2026-03-31. |
| ACMR |
ACM Research, Inc. |
82%
|
Mark McKechnie | Chief Financial Officer and Treasurer | sell | 60000 shares |
| ACMR |
ACM Research, Inc. |
82%
|
Wang David H | Chief Executive Officer, President and Director | sell | 55373 shares |
| ACMR |
ACM Research, Inc. |
82%
|
Wang David H | Chief Executive Officer, President and Director | sell | 55373 shares |
| ACMR |
ACM Research, Inc. |
82%
|
Mark McKechnie | Chief Financial Officer and Treasurer | sell | 60000 shares |
| ACMR |
ACM Research, Inc. |
82%
|
Liu Tracy | C/O ACM RESEARCH, INC. | sell | 32216 shares |
| ACMR |
ACM Research, Inc. |
82%
|
Liu Tracy | C/O ACM RESEARCH, INC. | sell | 32216 shares |
| ACMR |
ACM Research, Inc. |
82%
|
Dun Haiping | 10% Owner | sell | 4100 shares |
| ACMR |
ACM Research, Inc. |
82%
|
Wang David H | Chief Executive Officer, President and Director | option_exercise | 545400 shares |
| ACMR |
ACM Research, Inc. |
82%
|
McKechnie Mark | sell | 30365 shares |
| ACMR |
ACM Research, Inc. |
82%
|
Pappis Charles C | CEO | option_exercise | 5000 shares |
| ACMR |
ACM Research, Inc. |
82%
|
Feng Lisa | Chief Financial Officer | sell | 14800 shares |
| ACMR |
ACM Research, Inc. |
82%
|
Feng Lisa | Chief Financial Officer | sell | 14800 shares |
| ACMR |
ACM Research, Inc. |
82%
|
Pappis Charles C | CEO | option_exercise | 5000 shares |
| ACMR |
ACM Research, Inc. |
82%
|
Wang David H | Chief Executive Officer, President and Director | option_exercise | 545400 shares |