SILICON MOTION TECHNOLOGY CO (SIMO)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
376
Reporting holders
$8.3B
Reported value
17.1%
Of shares outstanding
8.0%
Held as options
+116
Holder change
Institutions report 23,010,260 shares against 134,244,840 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Share count carried from an earlier filing (concept 2025-12-31).
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| FMR LLC | $759.3M | 2,277,824 | 0.03% | 26q | -33.0%-$373.5M |
| Invesco Ltd. | $380.8M | 1,142,437 | 0.03% | 8q | +173.1%+$241.4M |
| ALKEON CAPITAL MANAGEMENT LLC | $366.7M | 1,100,000 | 0.50% | new | NEW |
| HAWK RIDGE CAPITAL MANAGEMENT LP | $338.4M | 1,015,215 | 10.85% | 5q | -13.5%-$52.7M |
| REINHART PARTNERS, LLC. | $322.0M | 966,060 | 7.35% | 12q | -26.5%-$116.0M |
| Polar Capital Holdings Plc | $310.5M | 931,375 | 0.73% | new | NEW |
| Driehaus Capital Management LLC | $262.0M | 786,074 | 1.52% | 5q | +54.1%+$92.0M |
| TWO SIGMA INVESTMENTS, LP | $249.4M | 701,105 | 0.18% | 31q | +155.3%+$151.7M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $215.2M | 1,736 | 0.02% | 31q | -91.3%-$2.2B |
| Wolf Hill Capital Management, LP | $182.9M | 548,791 | 15.30% | 3q | -5.5%-$10.7M |
| JANE STREET GROUP, LLC | $167.1M | options only | 0.01% | 13q | OPTIONS |
| Bahl & Gaynor LLC | $151.1M | 453,307 | 0.70% | 2q | +191.4%+$99.2M |
| Granahan Investment Management, LLC | $148.6M | 445,752 | 5.29% | 5q | +128.3%+$83.5M |
| LAZARD ASSET MANAGEMENT LLC | $145.3M | 435,931 | 0.22% | 45q | -44.3%-$115.3M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $139.3M | 417,894 | 0.06% | 5q | -1.8%-$2.6M |
| D. E. Shaw & Co., Inc. | $122.7M | 363,105 | 0.06% | new | NEW |
| Analog Century Management LP | $120.8M | 362,502 | 4.42% | 2q | -32.7%-$58.7M |
| SYSTEMATIC FINANCIAL MANAGEMENT LP | $118.1M | 354,216 | 2.35% | 31q | -30.1%-$50.8M |
| BIT Capital GmbH | $116.4M | 349,195 | 3.45% | new | NEW |
| OBERWEIS ASSET MANAGEMENT INC/ | $105.4M | 316,350 | 2.18% | 11q | +12.0%+$11.3M |
| IMC-Chicago, LLC | $100.9M | options only | 0.02% | 8q | OPTIONS |
| Robeco Institutional Asset Management B.V. | $99.9M | 299,699 | 0.12% | 15q | -52.5%-$110.6M |
| CITADEL ADVISORS LLC | $98.0M | 40,490 | 0.01% | 31q | -37.3%-$58.3M |
| MARSHALL WACE, LLP | $97.3M | 291,836 | 0.08% | 19q | +5.5%+$5.1M |
| MORGAN STANLEY | $97.2M | 291,727 | 0.01% | 35q | +38.3%+$26.9M |
| BANK OF AMERICA CORP /DE/ | $92.3M | 276,785 | 0.01% | 31q | +13.3%+$10.8M |
| VOYA INVESTMENT MANAGEMENT LLC | $91.7M | 275,122 | 0.08% | 2q | -28.0%-$35.6M |
| SCHWARTZ INVESTMENT COUNSEL INC | $90.0M | 270,000 | 2.99% | 10q | -10.0%-$10.0M |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | $87.3M | 261,815 | 1.53% | 11q | -42.6%-$64.9M |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $68.7M | 204,951 | 0.02% | 12q | -2.5%-$1.8M |
| HIGHLAND PEAK CAPITAL, LLC | $67.6M | 202,857 | 19.68% | 5q | -54.4%-$80.6M |
| Russell Investments Group, Ltd. | $66.6M | 200,346 | 0.06% | 12q | -1.5%-$1.0M |
| Boston Partners | $66.4M | 199,201 | 0.06% | 11q | -27.0%-$24.5M |
| WELLINGTON MANAGEMENT GROUP LLP | $61.7M | 185,251 | 0.01% | 31q | -39.1%-$39.7M |
| FengHe Fund Management Pte. Ltd. | $60.5M | 181,482 | 5.74% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $60.4M | 179,946 | 0.02% | 31q | -54.5%-$72.5M |
| UBS Group AG | $60.1M | 180,420 | 0.01% | 31q | -54.0%-$70.5M |
| Apis Capital Advisors, LLC | $59.5M | 178,400 | 5.79% | 9q | -28.4%-$23.6M |
| NEUMEIER POMA INVESTMENT COUNSEL LLC | $58.8M | 176,408 | 4.03% | 9q | -58.8%-$83.9M |
| Ophir Asset Management Pty Ltd | $58.1M | 174,335 | 4.78% | 5q | -51.2%-$60.9M |
| LOOMIS SAYLES & CO L P | $53.8M | 161,432 | 0.07% | 2q | -14.4%-$9.1M |
| HERALD INVESTMENT MANAGEMENT Ltd | $49.2M | 147,700 | 6.67% | 31q | -59.8%-$73.3M |
| AIGH Capital Management LLC | $48.0M | 144,000 | 3.03% | 2q | -28.0%-$18.7M |
| KNIGHTSBRIDGE ASSET MANAGEMENT, LLC | $47.6M | 217,011 | 3.23% | 5q | +91.1%+$22.7M |
| SEI INVESTMENTS CO | $47.4M | 142,327 | 0.04% | 31q | +30.5%+$11.1M |
| Qube Research & Technologies Ltd | $46.1M | 138,433 | 0.04% | 3q | -60.6%-$71.0M |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $43.2M | 129,537 | 0.03% | 10q | -17.8%-$9.4M |
| First Eagle Investment Management, LLC | $41.9M | 125,737 | 0.07% | 5q | -25.4%-$14.2M |
| BLAIR WILLIAM & CO/IL | $41.7M | 125,176 | 0.11% | 2q | +21.3%+$7.3M |
| GOLDMAN SACHS GROUP INC | $41.6M | 124,696 | 0.00% | 25q | +341.1%+$32.1M |
| NORTHERN TRUST CORP | $41.4M | 124,077 | 0.00% | 10q | -0.7%-$301.0K |
| HEARTLAND ADVISORS INC | $41.3M | 123,895 | 1.84% | 14q | -50.9%-$42.7M |
| Ratan Capital Management LP | $39.2M | 117,623 | 12.65% | new | NEW |
| Tidal Investments LLC | $38.9M | 116,620 | 0.07% | 6q | +135.9%+$22.4M |
| ENVESTNET ASSET MANAGEMENT INC | $37.3M | 111,780 | 0.01% | 31q | -4.5%-$1.7M |
| RAYMOND JAMES FINANCIAL INC | $36.9M | 110,710 | 0.01% | 3q | +61.3%+$14.0M |
| WESTFIELD CAPITAL MANAGEMENT CO LP | $35.5M | 106,466 | 0.12% | new | NEW |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | $35.3M | 105,946 | 0.04% | new | NEW |
| AMERIPRISE FINANCIAL INC | $34.2M | 102,519 | 0.01% | 5q | +29.7%+$7.8M |
| Walleye Trading LLC | $34.0M | 88,015 | 0.04% | 7q | +326.1%+$26.1M |
| Ma Investment Partnership, LP | $33.3M | 100,000 | 5.94% | new | NEW |
| Stephens Investment Management Group LLC | $33.0M | 99,098 | 0.35% | new | NEW |
| FRED ALGER MANAGEMENT, LLC | $32.1M | 96,303 | 0.11% | 2q | -40.1%-$21.5M |
| CastleKnight Management LP | $27.2M | 61,475 | 0.37% | 3q | -81.0%-$115.7M |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | $25.3M | 75,849 | 0.04% | 3q | -56.8%-$33.3M |
| BlackRock, Inc. | $25.2M | 75,746 | 0.00% | 8q | HELD |
| Ceredex Value Advisors LLC | $24.6M | 73,700 | 0.69% | new | NEW |
| STATE STREET CORP | $24.5M | 73,401 | 0.00% | 31q | -18.6%-$5.6M |
| Bank of New York Mellon Corp | $23.4M | 70,280 | 0.00% | 5q | +1810.3%+$22.2M |
| GROUP ONE TRADING LLC | $22.2M | options only | 0.03% | 26q | OPTIONS |
| SG Capital Management LLC | $22.0M | 66,027 | 1.82% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $21.7M | 193,382 | 0.01% | new | NEW |
| Balyasny Asset Management L.P. | $21.5M | 64,438 | 0.03% | 23q | -24.2%-$6.8M |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | $20.7M | 61,996 | 0.09% | 3q | -70.5%-$49.4M |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $20.2M | 60,600 | 0.03% | new | NEW |
| Jump Financial, LLC | $19.9M | 59,818 | 0.16% | 4q | +62.5%+$7.7M |
| M&G PLC | $19.5M | 58,576 | 0.10% | 7q | -36.5%-$11.2M |
| SIMPLEX TRADING, LLC | $19.5M | options only | 0.01% | 2q | OPTIONS |
| WELLS FARGO & COMPANY/MN | $19.1M | 57,449 | 0.00% | 31q | -64.3%-$34.4M |
| ROYCE & ASSOCIATES LP | $18.9M | 56,760 | 0.15% | 4q | -47.1%-$16.8M |
| ROYAL BANK OF CANADA | $18.2M | 54,681 | 0.00% | 31q | +11.5%+$1.9M |
| THAMES CAPITAL MANAGEMENT LLC | $17.6M | 52,823 | 1.45% | 2q | +14.0%+$2.2M |
| Hood River Capital Management LLC | $17.5M | 52,591 | 0.13% | new | NEW |
| GEODE CAPITAL MANAGEMENT, LLC | $17.3M | 52,011 | 0.00% | 31q | +20.0%+$2.9M |
| Trexquant Investment LP | $17.3M | 51,863 | 0.10% | 2q | +102.0%+$8.7M |
| NEUBERGER BERMAN GROUP LLC | $17.0M | 50,853 | 0.01% | 2q | -29.3%-$7.0M |
| TUDOR INVESTMENT CORP ET AL | $16.0M | options only | 0.02% | 3q | OPTIONS |
| NEW YORK STATE COMMON RETIREMENT FUND | $15.0M | 44,923 | 0.02% | 12q | +24.7%+$3.0M |
| BERKSHIRE CAPITAL HOLDINGS INC | $14.8M | 44,280 | 3.19% | new | NEW |
| KORNITZER CAPITAL MANAGEMENT INC /KS | $14.3M | 42,985 | 0.30% | 2q | HELD |
| UNICOM Systems, Inc. | $13.7M | 41,200 | 0.90% | new | NEW |
| Melqart Asset Management (UK) Ltd | $12.9M | 38,828 | 1.23% | 16q | -29.6%-$5.4M |
| Kite Lake Capital Management (UK) LLP | $12.6M | 37,705 | 4.33% | 9q | -91.7%-$138.3M |
| Prospect Capital Advisors, LLC | $12.2M | 36,660 | 5.55% | 31q | -55.4%-$15.2M |
| ABN AMRO INVESTMENT SOLUTIONS | $12.2M | 36,600 | 0.11% | 14q | -49.9%-$12.2M |
| Emerald Investment Advisers, LLC | $12.1M | 36,442 | 0.81% | 2q | -24.2%-$3.9M |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $11.8M | 35,330 | 0.03% | 8q | -24.8%-$3.9M |
| NATIONAL BANK OF CANADA /FI/ | $11.7M | 35,217 | 0.01% | 13q | +9291.2%+$11.6M |
| Skylands Capital, LLC | $11.4M | 34,214 | 1.40% | 23q | -30.4%-$5.0M |
| VAN ECK ASSOCIATES CORP | $11.3M | 33,998 | 0.01% | 8q | +47.6%+$3.7M |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-06 | 13G/A | FMR LLCwith 1 co-filers | 6.7% |
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 |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 376 | $8.3B | 23,010,260 | 151 | 71 | 125 | 8.0% |
| Q1 2026 | 260 | $2.9B | 24,644,339 | 61 | 89 | 80 | 3.5% |
| Q4 2025 | 231 | $2.3B | 24,896,953 | 38 | 73 | 72 | 1.7% |
| Q3 2025 | 206 | $2.4B | 24,693,306 | 36 | 65 | 68 | 4.2% |
| Q2 2025 | 200 | $1.9B | 24,745,514 | 51 | 50 | 64 | 3.0% |
| Q1 2025 | 180 | $1.3B | 24,214,978 | 24 | 72 | 50 | 2.4% |
| Q4 2024 | 188 | $1.4B | 24,325,139 | 23 | 60 | 73 | 4.1% |
| Q3 2024 | 191 | $1.5B | 24,262,082 | 14 | 71 | 70 | 3.4% |
| Q2 2024 | 215 | $2.0B | 24,018,003 | 43 | 79 | 59 | 4.5% |
| Q1 2024 | 192 | $1.9B | 23,676,709 | 36 | 64 | 61 | 4.0% |
| Q4 2023 | 189 | $1.8B | 26,767,006 | 36 | 66 | 50 | 6.3% |
| Q3 2023 | 179 | $1.4B | 24,558,591 | 45 | 54 | 61 | 11.3% |
| Q2 2023 | 179 | $2.4B | 21,826,226 | 32 | 46 | 73 | 35.1% |
| Q1 2023 | 167 | $1.7B | 20,490,308 | 26 | 55 | 56 | 21.6% |
| Q4 2022 | 156 | $1.5B | 20,330,575 | 32 | 54 | 48 | 14.1% |
| Q3 2022 | 204 | $1.7B | 24,927,731 | 34 | 63 | 69 | 6.4% |
| Q2 2022 | 217 | $2.2B | 25,296,632 | 62 | 48 | 84 | 2.4% |
| Q1 2022 | 213 | $1.7B | 24,839,404 | 33 | 74 | 70 | 3.8% |
| Q4 2021 | 226 | $2.6B | 27,551,046 | 45 | 69 | 70 | 2.8% |
| Q3 2021 | 205 | $2.0B | 28,635,485 | 37 | 66 | 70 | 5.6% |
| Q2 2021 | 199 | $1.9B | 26,878,545 | 23 | 69 | 72 | 7.3% |
| Q1 2021 | 214 | $1.6B | 26,374,173 | 61 | 68 | 58 | 2.8% |
| Q4 2020 | 170 | $1.3B | 25,905,129 | 37 | 53 | 55 | 5.0% |
| Q3 2020 | 148 | $971.7M | 25,555,888 | 14 | 71 | 36 | 0.6% |
| Q2 2020 | 165 | $1.3B | 26,345,545 | 41 | 51 | 47 | 0.8% |
| Q1 2020 | 150 | $975.9M | 26,424,912 | 36 | 56 | 41 | 0.7% |
| Q4 2019 | 148 | $1.3B | 26,399,824 | 39 | 49 | 39 | 0.2% |
| Q3 2019 | 127 | $922.6M | 25,975,369 | 28 | 47 | 37 | 0.5% |
| Q2 2019 | 137 | $1.2B | 26,636,590 | 18 | 45 | 48 | 0.9% |
| Q1 2019 | 150 | $1.0B | 25,883,999 | 27 | 54 | 43 | 0.4% |
| Q4 2018 | 146 | $904.3M | 26,114,940 | 4 | 4 | 6 | 0.3% |