Security key
00108J109
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 7,259,073
- Total 13F value
- $586,489,643
- Share change
- +1,815,996
- Put/Call ratio
- 325%
- SEC-reported price per share
- $80.79
- Number of holders
- 92
- Value change
- +$146,266,911
- Number of buys
- 57
- Number of sells
- 52
- Shares outstanding
- 64,126,478
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2021
Institutions
92
Top holders
10
ACMR full security history
Ownership snapshot
Full 13F holder table
ACM Research, Inc. SEC filings
ACM Research, Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of ACMR - ACM Research, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
INDUS CAPITAL PARTNERS, LLC
Disclosed value leader
INDUS CAPITAL PARTNERS, LLC
Comparable rows
0/15
Latest evidence
31 Dec 2020
13F
Highest disclosed value: $64,447,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
INDUS CAPITAL PARTNERS, LLC has the largest disclosed position value at $64.45M.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens INDUS CAPITAL PARTNERS, LLC's linked filing trail.
Disclosed position value
Top 5
INDUS CAPITAL PARTNERS, LLC
$64.45M
BlackRock Finance, Inc.
$59.79M
VANGUARD GROUP INC
$42.16M
DISCOVERY CAPITAL MANAGEMENT, LLC...
$29.09M
GOLDMAN SACHS GROUP INC
$18.92M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| INDUS CAPITAL PARTNERS, LLC |
13F
Company
|
—
denominator unverified
|
$64,447,000
793,199 shares
|
— | 31 Dec 2020 |
| BlackRock Finance, Inc. |
13F
Company
|
—
denominator unverified
|
$59,793,000
735,918 shares
|
— | 31 Dec 2020 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$42,165,000
518,950 shares
|
— | 31 Dec 2020 |
| DISCOVERY CAPITAL MANAGEMENT, LLC / CT |
13F
Company
|
—
denominator unverified
|
$29,088,000
358,002 shares
|
— | 31 Dec 2020 |
| GOLDMAN SACHS GROUP INC |
13F
Company
|
—
denominator unverified
|
$18,920,000
232,856 shares
|
— | 31 Dec 2020 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
—
denominator unverified
|
$18,408,000
226,563 shares
|
— | 31 Dec 2020 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
92
Shares
7,259,073
Rows available
92
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2021 vs Q1 2021 Across Filers
Q1 2021 holders
92
Q1 2021 holders
92
Holder diff
0
| Investor | Q1 2021 Shares | Q1 2021 Shares | Share Diff | Share Chg % | Q1 2021 value | Q1 2021 value | Value change | Value Chg % |
|---|