| 0.01% |
| 4 | Capital World Investors | 2.4M | $304.3M | β | 3.740% | 0.04% |
| 5 | STATE STREET CORP | 2.2M | $277.7M | +9.1% | 3.413% | 0.00% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 1.5M | $188.8M | +8.5% | 2.320% | 0.01% |
| 7 | JANE STREET GROUP, LLC | 1.4M | $183.8M | +249.3% | 2.259% | 0.02% |
| 8 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.2M | $151.9M | +29.3% | 1.867% | 0.01% |
| 9 | Invesco Ltd. | 1.2M | $148.5M | +48.7% | 1.825% | 0.01% |
| 10 | CITADEL ADVISORS LLC | 1.1M | $136.4M | +93.3% | 1.676% | 0.01% |
| 11 | Value Aligned Research Advisors, LLC | 1.1M | $133.7M | +10.3% | 1.644% | 0.33% |
| 12 | DIMENSIONAL FUND ADVISORS LP | 954K | $121.1M | +32.8% | 1.489% | 0.02% |
| 13 | WCM INVESTMENT MANAGEMENT, LLC | 918K | $109.1M | -50.7% | 1.431% | 0.20% |
| 14 | Tekne Capital Management, LLC | 738K | $93.6M | +3.1% | 1.150% | 30.62% |
| 15 | MORGAN STANLEY | 700K | $88.8M | -41.3% | 1.092% | 0.00% |
| 16 | FMR LLC | 672K | $85.3M | +6.8% | 1.048% | 0.00% |
| 17 | FULLER & THALER ASSET MANAGEMENT, INC. | 639K | $81.1M | β | 0.997% | 0.22% |
| 18 | GILDER GAGNON HOWE & CO LLC | 637K | $80.8M | +794.2% | 0.994% | 0.83% |
| 19 | Capital International Investors | 623K | $79.1M | β | 0.972% | 0.02% |
| 20 | NORTHERN TRUST CORP | 569K | $72.2M | +1.2% | 0.888% | 0.01% |
| 21 | Jupiter Topco LLC | 554K | $70.2M | β | 0.864% | 0.03% |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 527K | $66.8M | +9.5% | 0.822% | 0.01% |
| 23 | BANK OF AMERICA CORP /DE/ | 480K | $60.9M | +19.2% | 0.748% | 0.00% |
| 24 | UBS Group AG | 451K | $57.2M | +11.7% | 0.704% | 0.01% |
| 25 | Point72 Asset Management, L.P. | 429K | $54.4M | +40.5% | 0.668% | 0.06% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in ACMR β a direct measure of their conviction.
| 56.28% |
| 0.64 pp |
| $862M |
| +63% |
| Q4 2024 | 177 | +0.6% | 56.92% | +6.34 pp | $529M | 18% |
| Q3 2024 | 176 | β | 50.58% | β | $644M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
115 institutions opened new positions in ACMR during Q2 2026, while 39 fully exited. 247 added to existing positions and 15 trimmed.
ACMR institutional ownership rose by 6.72 percentage points quarter-over-quarter, with a net change of +75 holders.
The top 10 institutions account for 52.5% of all reported 13F value in ACMR, and the top 25 account for 72.9%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
ACM Research, Inc. (ACMR) Institutional Ownership