ACMR
ACM Research, Inc.
Latest close $82.51 as of Aug 4, 2026
Schedule 13G/13D reports beneficial ownership at an observation date. “Accumulation” or “reduction” is inferred
from changes in reported shares when available; it is not a list of individual trades or exact execution prices.
Form 13F rows are quarter-end holding context only and do not establish an exact entry date.
Free access includes current parsed ownership filings, reported share changes, and ownership-percentage changes.
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Beneficial ownership filing history
Showing 3 of 4 parsed filing(s) · 1 older require more history access| Holder | Observed / filed | Reported change | Shares | Ownership | Observation | Filing | Latest |
|---|---|---|---|---|---|---|---|
| BlackRock CIK0002012383 | Sep 30, 2025 observed Oct 2, 2025 filed · 2d Schedule 13G amendment | Reported accumulation | 7.4M +3.0M | 12.60% +4.90 pts | $39.13 | $43.32 | $82.51 |
| BlackRock CIK0002012383 | Sep 30, 2024 quarter end Nov 13, 2024 filed Form 13F quarter-end evidence | Earlier Form 13F quarter-end holding Quarter-end holding evidence; no ownership percentage or signal. | 4.4M | $82.51 | |||
| BlackRock CIK0002012383 | Sep 30, 2024 observed Nov 8, 2024 filed · 39d Schedule 13G amendment | Reported shares unchanged | 4.4M 0 | 7.70% 0.00 pts | $19.22 | $82.51 |