Security key
00108J109
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 31,082,900
- Total 13F value
- $562,774,649
- Share change
- +1,752,367
- Put/Call ratio
- 38%
- SEC-reported price per share
- $18.10
- Number of holders
- 153
- Value change
- +$38,989,842
- Number of buys
- 92
- Number of sells
- 51
- 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
Q3 2023
Institutions
153
Top holders
10
ACMR full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
ACM Research, Inc. SEC filings
ACM Research, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 00108J109
Recent filing periods:
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
VANGUARD GROUP INC
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
0/15
Latest evidence
30 Jun 2023
13F
3/4/5
Highest disclosed value: $48,173,392
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD GROUP INC has the largest disclosed position value at $48.17M.
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 VANGUARD GROUP INC's linked filing trail.
Disclosed position value
Top 5
VANGUARD GROUP INC
$48.17M
BlackRock Finance, Inc.
$44.86M
BANK OF AMERICA CORP /DE/
$28.78M
Yinan Xiang
$25.22M
CITIGROUP INC
$23.26M
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 |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$48,173,392
3,682,981 shares
|
— | 30 Jun 2023 |
| BlackRock Finance, Inc. |
13F
Company
|
—
denominator unverified
|
$44,857,220
3,429,451 shares
|
— | 30 Jun 2023 |
| BANK OF AMERICA CORP /DE/ |
13F
Company
|
—
denominator unverified
|
$28,781,755
2,200,440 shares
|
— | 30 Jun 2023 |
| Yinan Xiang |
3/4/5
Director
|
—
denominator unverified
|
$25,215,740
1,146,170 shares
|
— | 23 Aug 2021 |
| CITIGROUP INC |
13F
Company
|
—
denominator unverified
|
$23,264,507
1,778,632 shares
|
— | 30 Jun 2023 |
| JPMORGAN CHASE & CO |
13F
Company
|
—
denominator unverified
|
$15,702,018
1,200,460 shares
|
— | 30 Jun 2023 |
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 Q3 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
153
Shares
31,082,900
Rows available
153
| 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 Q3 2023 vs Q2 2023 Across Filers
Q2 2023 holders
121
Q3 2023 holders
153
Holder diff
32
| Investor | Q2 2023 Shares | Q3 2023 Shares | Share Diff | Share Chg % | Q2 2023 value | Q3 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend