- Type / Class
- Equity / Common Stock
- Shares outstanding
- 59,904,855
- Total 13F shares
- 873,847
- Share change
- +873,847
- Total reported value
- $4,571,000
- Price per share
- $5.25
- Number of holders
- 10
- Value change
- +$4,571,000
- Number of buys
- 10
Quarterly Holders Quick Answers
What is CUSIP 00108J109?
CUSIP 00108J109 identifies ACMR - ACM Research, Inc. - Common Stock in SEC institutional holdings data.
Need full ownership history?
Open the full security ownership history page.
Next holder-history checks
These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.
- Back to full security ownership history for the broader multi-quarter picture.
- Latest 13F filings for newly reported positions across managers.
- Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
- SEC investors directory for manager drilldown.
Explore More Reporting Periods
Jump to adjacent filing periods for faster comparison and easier crawl discovery.
- Newer quarter: Q1 2018
Recent filing periods for CUSIP 00108J109:
Top shareholders of ACMR - ACM Research, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
No top shareholder records were found across 13F, 13D/G, and Forms 3/4/5 for this issuer.
Institutional Holders of ACM Research, Inc. - Common Stock (ACMR) as of Q4 2017
As of 31 Dec 2017,
ACM Research, Inc. - Common Stock (ACMR) was held by
10 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
873,847 shares.
The largest 10 holders included
AMERIPRISE FINANCIAL INC, Herald Investment Management Ltd, GILDER GAGNON HOWE & CO LLC, Polar Asset Management Partners Inc., K.J. Harrison & Partners Inc, Granite Point Capital Management, L.P., MILLENNIUM MANAGEMENT LLC, UBS Group AG, Tower Research Capital LLC (TRC), and THOMPSON DAVIS & CO., INC..
This page lists
10
institutional shareholders reporting positions in this security
for the Q4 2017 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q4 2017 vs Q4 2025 Across Filers
Q4 2025 holders
274
Q4 2017 holders
10
Holder diff
-264
| Investor | Q4 2025 Shares | Q4 2017 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q4 2017 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.