ACM RESH INC (ACMR)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $1.1B | 8,660,842 | 0.02% | 8q | +8.5%+$85.8M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $425.0M | 3,349,436 | 0.02% | 2q | +52.0%+$145.4M |
| VANGUARD CAPITAL MANAGEMENT LLC | $312.5M | 2,462,745 | 0.01% | 2q | +8.8%+$25.2M |
| Capital World Investors | $304.3M | 2,398,036 | 0.04% | new | NEW |
| STATE STREET CORP | $277.7M | 2,188,254 | 0.01% | 27q | +9.1%+$23.1M |
| GEODE CAPITAL MANAGEMENT, LLC | $188.8M | 1,487,797 | 0.01% | 31q | +8.5%+$14.8M |
| JANE STREET GROUP, LLC | $183.8M CALL+PUT | options only | 0.02% | 11q | OPTIONS |
| Tidal Investments LLC | $174.4M incl. $114.6M options CALL | 470,937 | 0.30% | 5q | +50.1%+$58.2M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $151.9M incl. $119.7M options CALL+PUT | 253,671 | 0.01% | 26q | +324.6%+$116.1M |
| Invesco Ltd. | $148.5M | 1,170,080 | 0.01% | 17q | +48.7%+$48.6M |
| CITADEL ADVISORS LLC | $136.4M incl. $55.6M options CALL+PUT | 636,836 | 0.02% | 29q | +213.1%+$92.8M |
| Value Aligned Research Advisors, LLC | $133.7M incl. $12.7K options CALL | 1,053,949 | 0.33% | 2q | +10.3%+$12.4M |
| WFM ASIA (BVI) Ltd | $123.0M | 969,200 | 18.56% | new | NEW |
| DIMENSIONAL FUND ADVISORS LP | $121.1M | 954,474 | 0.02% | 3q | +32.7%+$29.9M |
| WCM INVESTMENT MANAGEMENT, LLC | $109.1M | 917,651 | 0.20% | 3q | -50.7%-$112.1M |
| Tekne Capital Management, LLC | $93.6M | 737,500 | 30.62% | 3q | +3.1%+$2.9M |
| MORGAN STANLEY | $88.8M | 700,185 | 0.00% | 34q | -41.3%-$62.5M |
| FMR LLC | $85.3M | 672,184 | 0.00% | 17q | +6.8%+$5.4M |
| FULLER & THALER ASSET MANAGEMENT, INC. | $81.1M | 639,448 | 0.22% | new | NEW |
| GILDER GAGNON HOWE & CO LLC | $80.8M | 637,058 | 0.83% | 10q | +794.2%+$71.8M |
| Capital International Investors | $79.1M | 623,429 | 0.02% | new | NEW |
| Polunin Capital Partners Ltd | $77.1M | 748,498 | 18.92% | 2q | -1.9%-$1.5M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $75.1M | 591,573 | 0.01% | 24q | +172.7%+$47.5M |
| NORTHERN TRUST CORP | $72.2M | 569,126 | 0.01% | 31q | +1.2%+$836.3K |
| Jupiter Topco LLC | $70.2M | 553,768 | 0.03% | new | FIRST |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $66.8M | 526,760 | 0.01% | 24q | +9.5%+$5.8M |
| BANK OF AMERICA CORP /DE/ | $60.9M | 479,706 | 0.00% | 26q | +19.2%+$9.8M |
| UBS Group AG | $57.2M incl. $6.2M options CALL+PUT | 402,473 | 0.01% | 25q | HELD |
| IMC-Chicago, LLC | $55.5M CALL+PUT | options only | 0.01% | 10q | OPTIONS |
| Point72 Asset Management, L.P. | $54.4M CALL+PUT | options only | 0.06% | 6q | OPTIONS |
| GOLDMAN SACHS GROUP INC | $54.1M | 426,243 | 0.00% | 27q | -22.8%-$16.0M |
| VANGUARD FIDUCIARY TRUST CO | $51.3M | 404,100 | 0.01% | 2q | +18.4%+$8.0M |
| PRINCIPAL FINANCIAL GROUP INC | $47.1M | 370,913 | 0.02% | 5q | +8.9%+$3.8M |
| WEXFORD CAPITAL LP | $45.1M | 355,400 | 5.77% | 6q | -40.7%-$30.9M |
| Mitsubishi UFJ Trust & Banking Corp | $44.6M | 351,204 | 0.10% | 25q | -24.6%-$14.5M |
| Raiffeisen Bank International AG | $42.8M | 360,000 | 0.50% | 7q | -5.3%-$2.4M |
| Bank of New York Mellon Corp | $41.4M | 326,284 | 0.01% | 31q | +3.7%+$1.5M |
| AQR CAPITAL MANAGEMENT LLC | $39.9M | 314,172 | 0.01% | 15q | -2.9%-$1.2M |
| FIRST TRUST ADVISORS LP | $38.8M | 306,034 | 0.02% | 5q | -18.2%-$8.6M |
| Penn Capital Management Company, LLC | $36.3M | 285,790 | 2.30% | 3q | -28.2%-$14.2M |
| Qube Research & Technologies Ltd | $35.5M | 280,015 | 0.03% | 3q | -61.3%-$56.4M |
| Oasis Management Co Ltd. | $34.8M | 274,525 | 1.86% | 9q | +1.6%+$563.0K |
| MACKENZIE FINANCIAL CORP | $34.0M | 268,004 | 0.03% | 5q | +278.1%+$25.0M |
| Cederberg Capital Ltd | $32.3M | 254,669 | 32.20% | 4q | -57.5%-$43.7M |
| MY.Alpha Management HK Advisors Ltd | $31.7M | 249,500 | 12.19% | new | NEW |
| GROUP ONE TRADING LLC | $31.5M incl. $11.5M options CALL+PUT | 157,056 | 0.04% | 9q | +71.8%+$13.1M |
| RENAISSANCE TECHNOLOGIES LLC | $29.2M | 229,800 | 0.04% | 5q | +87.4%+$13.6M |
| TWO SIGMA INVESTMENTS, LP | $28.7M incl. $1.8M options CALL+PUT | 212,544 | 0.02% | 2q | +305.5%+$21.6M |
| 12 West Capital Management LP | $28.6M | 225,000 | 5.34% | 2q | +3588.5%+$27.8M |
| CONGRESS ASSET MANAGEMENT CO | $28.4M | 223,855 | 0.17% | 5q | -34.1%-$14.7M |
| Russell Investments Group, Ltd. | $28.1M | 221,775 | 0.02% | 14q | +37.8%+$7.7M |
| CITIGROUP INC | $26.6M | 209,845 | 0.01% | 25q | -66.1%-$52.0M |
| JPMORGAN CHASE & CO | $25.8M | 214,853 | 0.00% | 24q | -27.8%-$9.9M |
| RPg Family Wealth Advisory, LLC | $24.9M | 196,332 | 2.30% | 6q | +115.7%+$13.4M |
| Public Sector Pension Investment Board | $24.9M | 196,012 | 0.06% | 4q | +2.8%+$683.4K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $24.4M | 191,966 | 0.09% | 2q | -21.4%-$6.6M |
| NEW YORK STATE COMMON RETIREMENT FUND | $24.3M | 191,535 | 0.03% | 17q | -26.2%-$8.6M |
| Steamboat Capital Partners, LLC | $23.2M | 182,773 | 4.96% | 10q | -18.2%-$5.2M |
| Portolan Capital Management, LLC | $22.5M | 177,432 | 0.84% | 4q | +113.1%+$11.9M |
| WELLINGTON MANAGEMENT GROUP LLP | $22.2M | 174,987 | 0.00% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $21.7M incl. $3.8M options CALL | 140,501 | 0.01% | 16q | +114.3%+$11.6M |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | $21.5M | 169,322 | 0.03% | 3q | +907.9%+$19.4M |
| Nuveen, LLC | $18.8M | 148,494 | 0.00% | 6q | +32.7%+$4.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $18.6M | 146,414 | 0.00% | 26q | +58.7%+$6.9M |
| FRANKLIN RESOURCES INC | $18.4M | 145,385 | 0.00% | 2q | +50.8%+$6.2M |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | $17.7M | 139,478 | 0.92% | 5q | -82.2%-$81.6M |
| MATTHEWS INTERNATIONAL CAPITAL MANAGEMENT LLC | $16.8M | 132,396 | 5.76% | 20q | -4.6%-$814.5K |
| PEAK6 LLC | $16.6M CALL | options only | 0.03% | 7q | OPTIONS |
| RHUMBLINE ADVISERS | $16.4M | 128,979 | 0.01% | 17q | -9.2%-$1.7M |
| Legal & General Group Plc | $15.9M | 125,619 | 0.00% | 25q | -0.5%-$85.8K |
| BRIGHT VALLEY CAPITAL Ltd | $15.0M | 118,000 | 2.39% | new | NEW |
| Dodge & Cox | $14.8M | 116,392 | 0.01% | 8q | -2.9%-$444.1K |
| AMERIPRISE FINANCIAL INC | $14.6M | 115,178 | 0.00% | 16q | -45.7%-$12.3M |
| WELLS FARGO & COMPANY/MN | $13.8M incl. $6.3M options CALL | 58,627 | 0.00% | 14q | -71.3%-$34.2M |
| Horiko Capital Management LLC | $13.5M | 106,628 | 2.38% | 2q | +61.6%+$5.2M |
| THOMPSON SIEGEL & WALMSLEY LLC | $13.4M | 105,790 | 0.24% | 6q | +4.6%+$595.1K |
| Swiss National Bank | $13.1M | 103,600 | 0.01% | 25q | -2.8%-$380.7K |
| AMERICAN CENTURY COMPANIES INC | $12.8M | 101,200 | 0.01% | 13q | -32.8%-$6.3M |
| LPL Financial LLC | $11.8M | 93,288 | 0.00% | 11q | +12.3%+$1.3M |
| DEUTSCHE BANK AG\ | $11.5M | 90,500 | 0.00% | 34q | +13.3%+$1.4M |
| BNP PARIBAS FINANCIAL MARKETS | $11.0M | 86,340 | 0.00% | 22q | +61.3%+$4.2M |
| STOREBRAND ASSET MANAGEMENT AS | $10.2M | 80,510 | 0.03% | 2q | -55.3%-$12.6M |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC | $10.2M | 80,000 | 1.05% | 2q | HELD |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $9.5M | 74,778 | 0.01% | 2q | +30.8%+$2.2M |
| Kendall Capital Management | $9.2M | 72,820 | 1.54% | 9q | -12.4%-$1.3M |
| SIMPLEX TRADING, LLC | $9.1M incl. $3.5M options CALL+PUT | 44,316 | 0.01% | 9q | +81.1%+$4.1M |
| Aperture Investors, LLC | $9.0M | 70,569 | 0.81% | 2q | +244.5%+$6.4M |
| LAZARD ASSET MANAGEMENT LLC | $8.1M | 63,784 | 0.01% | 2q | +48.2%+$2.6M |
| Atika Capital Management LLC | $8.0M | 63,000 | 0.53% | new | NEW |
| Inspire Investing, LLC | $8.0M | 62,959 | 0.33% | 4q | HELD |
| Kerrisdale Advisers, LLC | $7.9M | 62,570 | 1.99% | 8q | -72.0%-$20.5M |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $7.6M | 59,702 | 0.01% | 20q | -5.4%-$435.1K |
| PRUDENTIAL FINANCIAL INC | $7.4M | 58,505 | 0.01% | 4q | +8.1%+$559.0K |
| BESSEMER GROUP INC | $7.1M | 55,961 | 0.01% | 8q | HELD |
| Quantinno Capital Management LP | $6.9M | 54,218 | 0.01% | 3q | +0.5%+$37.2K |
| Quadrature Capital Ltd | $6.2M | 48,891 | 0.05% | new | NEW |
| FIL Ltd | $6.1M CALL | options only | 0.00% | new | OPTIONS |
| CANADA LIFE ASSURANCE Co | $5.7M | 45,391 | 0.01% | 25q | +4.5%+$248.8K |
| Focus Partners Wealth | $5.6M | 43,904 | 0.01% | 3q | +3.9%+$208.7K |
| NEUBERGER BERMAN GROUP LLC | $5.4M | 44,245 | 0.00% | 6q | +74.8%+$2.3M |
Showing the largest 100 of 387 reported holders.
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | McKechnie Mark | See Remarks | Sold | 55,199 | $4.3M ×3 |
| 2026-06-04 | Cheav Sotheara | See remarks | Sold | 13,351 | $1.1M ×3 |
| 2026-06-05 | Cheav Sotheara | See remarks | Sold | 5,399 | $449.1K ×4 |
| 2026-08-18 | Dun Haiping | Director | Sold | 5,000 | $405.7K ×3 |
| 2026-05-19 | Dun Haiping | Director | Sold | 5,000 | $331.1K ×4 |
Ten percent owners and entities
Usually an institution that crossed a reporting threshold, or a company taking a strategic stake, rather than an individual with a view.
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-08 | Wang David H | See Remarks | Sold | 70,000 | $5.4M ×4 |
| 2026-06-03 | Wang David H | See Remarks | Sold | 60,000 | $5.4M ×6 |
| 2026-09-09 | Wang David H | See Remarks | Sold | 70,000 | $5.2M ×5 |
| 2026-06-04 | Wang David H | See Remarks | Sold | 40,002 | $3.4M ×5 |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 85 | $143.9M | 1,901,072 | 17 | 22 | 27 | 0.0% |
| Q2 2026 | 387 | $6.8B | 48,615,479 | 120 | 123 | 90 | 9.6% |
| Q1 2026 | 308 | $1.9B | 44,461,888 | 64 | 78 | 101 | 8.4% |
| Q4 2025 | 288 | $2.0B | 45,250,036 | 50 | 89 | 87 | 11.5% |
| Q3 2025 | 268 | $1.9B | 41,809,415 | 64 | 78 | 77 | 15.5% |
| Q2 2025 | 245 | $1.1B | 37,534,310 | 55 | 83 | 68 | 11.8% |
| Q1 2025 | 245 | $946.0M | 35,911,187 | 80 | 70 | 63 | 11.3% |
| Q4 2024 | 186 | $589.6M | 35,723,954 | 25 | 61 | 59 | 8.5% |
| Q3 2024 | 184 | $713.7M | 32,474,479 | 29 | 61 | 58 | 7.6% |
| Q2 2024 | 206 | $855.3M | 34,418,573 | 51 | 64 | 51 | 7.2% |
| Q1 2024 | 204 | $1.1B | 35,885,493 | 69 | 51 | 51 | 6.4% |
| Q4 2023 | 158 | $707.9M | 34,259,380 | 28 | 46 | 52 | 5.4% |
| Q3 2023 | 157 | $596.3M | 31,083,900 | 48 | 48 | 35 | 5.6% |
| Q2 2023 | 127 | $404.0M | 29,261,110 | 18 | 40 | 33 | 5.3% |
| Q1 2023 | 133 | $376.1M | 29,431,643 | 31 | 43 | 34 | 8.4% |
| Q4 2022 | 125 | $244.8M | 30,508,064 | 34 | 35 | 30 | 3.9% |
| Q3 2022 | 110 | $494.3M | 37,543,953 | 23 | 31 | 35 | 5.4% |
| Q2 2022 | 97 | $1.9B | 113,386,480 | 28 | 33 | 22 | 0.7% |
| Q1 2022 | 92 | $775.6M | 33,224,662 | 18 | 31 | 27 | 11.4% |
| Q4 2021 | 102 | $798.9M | 9,039,100 | 20 | 42 | 24 | 3.5% |
| Q3 2021 | 95 | $1.2B | 9,166,120 | 23 | 33 | 21 | 14.2% |
| Q2 2021 | 93 | $927.0M | 7,678,998 | 22 | 28 | 27 | 15.3% |
| Q1 2021 | 91 | $789.0M | 8,338,515 | 22 | 30 | 31 | 14.7% |
| Q4 2020 | 93 | $826.0M | 9,690,840 | 19 | 32 | 29 | 4.7% |
| Q3 2020 | 85 | $450.5M | 5,073,873 | 27 | 25 | 20 | 22.1% |
| Q2 2020 | 84 | $3.0B | 47,117,426 | 38 | 22 | 19 | 2.2% |
| Q1 2020 | 61 | $237.6M | 7,890,633 | 38 | 10 | 13 | 1.8% |
| Q4 2019 | 43 | $55.9M | 3,032,082 | 15 | 15 | 9 | 0.0% |
| Q3 2019 | 45 | $40.5M | 2,922,519 | 13 | 14 | 16 | 0.0% |
| Q2 2019 | 37 | $27.2M | 1,744,782 | 19 | 8 | 6 | 0.0% |
| Q1 2019 | 27 | $22.6M | 1,464,711 | 3 | 11 | 7 | 0.0% |
| Q4 2018 | 28 | $17.8M | 1,635,814 | 0 | 0 | 2 | 0.0% |
