DaveManuel.com · Institutional Ownership · Who Owns It
SILICON MOTION TECHNOLOGY CO (SIMO)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
396
Reporting holders
$8.9B
Reported value
4.9%
Calls
2.5%
Puts
+114
Holder change
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 |
|---|---|---|---|---|---|
| FMR LLC | $759.3M | 2,277,824 | 0.03% | 26q | -33.0%-$373.5M |
| ACADIAN ASSET MANAGEMENT LLC | $438.5M | 1,315,838 | 0.52% | 27q | +1.7%+$7.4M |
| 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 incl. $15.7M options CALL+PUT | 701,105 | 0.18% | 31q | +155.3%+$151.7M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $215.2M incl. $214.6M options CALL+PUT | 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 CALL+PUT | 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 |
| LORD, ABBETT & CO. LLC | $126.0M | 377,899 | 0.36% | 10q | -60.7%-$194.7M |
| D. E. Shaw & Co., Inc. | $122.7M incl. $1.7M options PUT | 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 CALL+PUT | 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 incl. $84.5M options CALL+PUT | 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 |
| First Eagle Investment Management, LLC | $83.8M | 251,474 | 0.07% | 5q | +49.3%+$27.7M |
| 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 incl. $466.7K options CALL | 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 |
| 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 | +159.3%+$21.0M |
| Walleye Trading LLC | $34.0M incl. $4.7M options CALL+PUT | 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 incl. $6.7M options CALL | 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 CALL+PUT | 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 |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO | $20.1M | 60,300 | 0.07% | 2q | -21.7%-$5.6M |
| 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 CALL+PUT | options only | 0.01% | 2q | OPTIONS |
| WELLS FARGO & COMPANY/MN | $19.1M | 57,449 | 0.00% | 31q | -28.5%-$7.6M |
| 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 |
| Janney Montgomery Scott LLC | $16.3M | 48,876 | 0.03% | 31q | -33.0%-$8.0M |
| TUDOR INVESTMENT CORP ET AL | $16.0M CALL+PUT | 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 |
| HARBOR CAPITAL ADVISORS, INC. | $14.3M | 42,995 | 0.98% | 10q | -32.8%-$7.0M |
| 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 |
Showing the largest 100 of 396 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 |
|---|---|---|---|---|---|
| 2026-06-17 | LIN KUAN-MING | Director | Sold | 2,000 | $610.0K ×2 |
| 2026-06-18 | SHIEH HAN-PING | Director | Sold | 1,000 | $328.0K |
| 2026-06-18 | LIN KUAN-MING | Director | Sold | 1,000 | $320.3K |
| 2026-06-02 | SHIEH HAN-PING | Director | Sold | 1,000 | $301.2K |
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 | 93 | $576.0M | 2,068,692 | 23 | 25 | 30 | 0.0% |
| Q2 2026 | 396 | $8.9B | 25,056,443 | 152 | 76 | 136 | 7.4% |
| Q1 2026 | 282 | $3.1B | 27,128,252 | 64 | 95 | 88 | 3.2% |
| Q4 2025 | 247 | $2.6B | 27,437,047 | 39 | 79 | 79 | 1.5% |
| Q3 2025 | 225 | $2.7B | 27,434,178 | 40 | 67 | 78 | 4.2% |
| Q2 2025 | 217 | $2.2B | 28,489,350 | 53 | 57 | 70 | 2.7% |
| Q1 2025 | 196 | $1.4B | 27,703,412 | 25 | 76 | 60 | 2.3% |
| Q4 2024 | 207 | $1.5B | 27,274,870 | 28 | 69 | 77 | 3.9% |
| Q3 2024 | 206 | $1.7B | 27,056,068 | 16 | 77 | 75 | 3.2% |
| Q2 2024 | 236 | $2.4B | 28,383,245 | 45 | 89 | 63 | 4.0% |
| Q1 2024 | 216 | $2.2B | 27,886,489 | 43 | 70 | 69 | 4.0% |
| Q4 2023 | 211 | $1.9B | 28,629,726 | 38 | 74 | 59 | 6.9% |
| Q3 2023 | 203 | $1.5B | 26,219,479 | 49 | 64 | 68 | 11.7% |
| Q2 2023 | 206 | $2.6B | 23,868,824 | 35 | 53 | 87 | 34.4% |
| Q1 2023 | 200 | $2.0B | 24,097,029 | 31 | 71 | 68 | 19.2% |
| Q4 2022 | 201 | $1.8B | 24,817,607 | 39 | 66 | 65 | 12.5% |
| Q3 2022 | 200 | $34.9B | 533,432,275 | 33 | 61 | 68 | 0.3% |
| Q2 2022 | 214 | $46.5B | 555,438,770 | 62 | 48 | 81 | 0.1% |
| Q1 2022 | 210 | $38.2B | 571,007,465 | 33 | 72 | 70 | 0.2% |
| Q4 2021 | 225 | $65.5B | 695,899,261 | 46 | 68 | 70 | 0.1% |
| Q3 2021 | 203 | $66.9B | 969,596,612 | 36 | 66 | 70 | 0.2% |
| Q2 2021 | 198 | $67.9B | 1,057,488,861 | 23 | 68 | 72 | 0.2% |
| Q1 2021 | 212 | $63.1B | 1,062,102,781 | 60 | 68 | 57 | 0.1% |
| Q4 2020 | 168 | $2.3B | 46,994,266 | 37 | 52 | 54 | 2.8% |
| Q3 2020 | 147 | $29.7B | 785,692,697 | 14 | 70 | 36 | 0.0% |
| Q2 2020 | 164 | $39.4B | 807,842,864 | 40 | 51 | 47 | 0.0% |
| Q1 2020 | 150 | $1.5B | 40,581,399 | 36 | 55 | 42 | 0.5% |
| Q4 2019 | 148 | $35.7B | 713,774,761 | 39 | 50 | 39 | 0.0% |
| Q3 2019 | 124 | $25.2B | 712,108,501 | 26 | 46 | 37 | 0.0% |
| Q2 2019 | 137 | $31.9B | 720,206,059 | 18 | 45 | 48 | 0.0% |
| Q1 2019 | 149 | $28.5B | 718,975,281 | 27 | 54 | 43 | 0.0% |
| Q4 2018 | 144 | $26.2B | 754,588,791 | 4 | 4 | 6 | 0.0% |