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Of the 14 tracked institutions holding ACMR, 7 have a 3-year clone track record — 6 of them beat the S&P. Average holder's clone alpha: +4.2pt. It's a gauge of who owns the name, not just how many.
Among the 14 tracked institutional investors we monitor, ACMR (ACM RESH INC) is held with a combined value of $1.93B across 18,623,419 shares. The largest holder is BlackRock, Inc. with a position worth $1.10B (0.02% of their portfolio). 4 funds opened new positions in the most recent quarter. 8 funds increased their holdings. 2 funds reduced their position.
Total Institutional Value
$1.93B
Total Shares Held
18,623,419
Institutional Holders
14
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $1.10B | 0.02% | +8.5% |
| 2 | STATE STREET CORP | $277.67M | 0.01% | +9.1% |
| 3 | VANGUARD GROUP INC | $196.15M | 0.00% | +2.6% |
| 4 | FMR LLC | $85.29M | 0.00% | +6.8% |
| 5 | CITADEL ADVISORS LLC | $80.81M | 0.05% | +213.1% |
| 6 | PRICE T ROWE ASSOCIATES INC /MD/ | $75.07M | 0.01% | +172.7% |
| 7 | AQR CAPITAL MANAGEMENT LLC | $39.87M | 0.01% | -2.9% |
| 8 | RENAISSANCE TECHNOLOGIES LLC | $29.16M | 0.04% | +87.4% |
| 9 | WELLINGTON MANAGEMENT GROUP LLP | $22.20M | 0.00% | New |
| 10 | MILLENNIUM MANAGEMENT LLC | $17.83M | 0.01% | +114.3% |
SEC Schedule 13D (activist) and 13G (passive) filings for ACMR. Filed when an investor acquires 5%+ ownership.
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of ACMR with a position worth $1.10B, representing 0.02% of their portfolio. In total, 14 institutional investors hold ACMR with a combined value of $1.93B.
In the most recent quarter, 4 funds opened a new position in ACMR. Additionally, 8 increased their holdings and 2 reduced their positions.
Institutional investors hold $1.93B worth of ACMR stock across 14 positions. The largest institutional holder is BlackRock, Inc. with $1.10B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ACMR, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ACMR positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$83.38
2026-10-02
YTD
+85.8%
55% of 52-week range
