Acm Research, INC Schedule 13G passive stakes
Filed when an investor crosses five percent without intending to seek control — the passive counterpart to a 13D.
NASDAQ
SCHEDULE: Vanguard Discloses Stake in ACM Research
Vanguard Portfolio Management has reported a 5.31% stake in ACM Research Inc., holding over 3.4 million shares.
NASDAQ
The Vanguard Group has filed an amendment to its Schedule 13G for ACM Research Inc., reporting 0% beneficial ownership following an internal realignment.
NASDAQ
The Vanguard Group has filed an amendment to its Schedule 13G, reporting an 8.3% beneficial ownership in ACM Research Inc. common stock as of December 31, 2025.
NASDAQ
BlackRock, Inc. has disclosed an increased beneficial ownership of 12.6% in ACM Research, Inc.'s Class A Stock, totaling 7,420,308 shares.
NASDAQ
SCHEDULE 13G/A: BlackRock Discloses 6.6% Passive Stake in ACM Research, Inc.
BlackRock, Inc. has filed an amended Schedule 13G, reporting a 6.6% beneficial ownership stake in ACM Research, Inc.'s Class A Stock as of March 31, 2025.