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SIMO

Silicon Motion Technology CORP
$300.71 -16.27 (-5.13%) At close · Jul 2
Market Cap
$10.20B
Shares
134,245,000

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 279
Total Value: $3,131,909,966
Total Shares: 27,891,265
Showing 1–100 of 292 holdings by value · page 1 of 3

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 279 13F filers · Δ vs Dec 31, 2025
Top Holder
12.2%
Jun 2023 → Mar 2026 · range 4.7% – 12.2%
−0.0 pts
Top 5
29.2%
Jun 2023 → Mar 2026 · range 18.5% – 30.4%
−1.0 pts
Top 10
40.3%
Jun 2023 → Mar 2026 · range 32.5% – 45.6%
−2.5 pts
HHI
305
Jun 2023 → Mar 2026 · range 195 – 338
Broadly held−17

Quarterly Activity

vs Dec 31, 2025
New
62
Increased
99
Decreased
90
Sold Out
29
Unchanged
28
Holder count: +33
Institutional value: +21.6%
Shares held: +0.4%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mid CastleKnight Management LP +407,539 503,475
Mid HAWK RIDGE CAPITAL MANAGEMENT LP +385,568 1,173,315
Large Qube Research & Technologies Ltd +256,133 351,522
Mega MILLENNIUM MANAGEMENT LLC +248,759 395,789
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP +225,221 425,697

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mid Pertento Partners LLP −738,875 412,536
Mega WELLINGTON MANAGEMENT GROUP LLP −392,713 304,286
Large ADAGE CAPITAL PARTNERS GP, L.L.C. −316,975 54,687
Mid REINHART PARTNERS, LLC. −259,316 1,314,039
Mid FRONTIER CAPITAL MANAGEMENT CO LLC −239,115 272,356

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mid Analog Century Management LP 538,748 $60,496,012
Large VOYA INVESTMENT MANAGEMENT LLC 381,854 $42,878,384
Small AIGH Capital Management LLC 200,000 $22,458,000
Large LOOMIS SAYLES & CO L P 188,653 $21,183,844
Large FRED ALGER MANAGEMENT, LLC 160,891 $18,066,448

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Small Think Investments LP 289,300 $26,818,110
Mid CRAMER ROSENTHAL MCGLYNN LLC 143,604 $13,312,090
Mid Clearline Capital LP 132,911 $12,320,849
Large TWO SIGMA ADVISERS, LP 124,681 $11,557,928
Mega D. E. Shaw & Co., Inc. 102,038 $9,458,922
Filter: New 62 Increased 99 Reduced 90 Sold out 29 Unchanged 28
Showing 100 of 292
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega FMR LLC $381,602,628 12.18% 3,398,367
Mid REINHART PARTNERS, LLC. $147,553,439 4.71% 1,314,039
Large ACADIAN ASSET MANAGEMENT LLC $145,270,695 4.64% 1,293,710
Mid HAWK RIDGE CAPITAL MANAGEMENT LP $131,751,541 4.21% 1,173,315
Large LORD, ABBETT & CO. LLC $108,038,588 3.45% 962,139
Large LAZARD ASSET MANAGEMENT LLC $87,808,645 2.80% 781,981
Large Robeco Institutional Asset Management B.V. $70,920,230 2.26% 631,581
Small Wolf Hill Capital Management, LP $65,223,871 2.08% 580,852
Large Man Group plc $62,893,965 2.01% 560,103
Mid Analog Century Management LP $60,496,012 1.93% 538,748
Large Driehaus Capital Management LLC $57,265,092 1.83% 509,975
Mid SYSTEMATIC FINANCIAL MANAGEMENT LP $56,900,149 1.82% 506,725
Mid SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC $51,246,348 1.64% 456,375
Small Kite Lake Capital Management (UK) LLP $50,819,534 1.62% 452,574
Small HIGHLAND PEAK CAPITAL, LLC $49,914,589 1.59% 444,515
Mid NEUMEIER POMA INVESTMENT COUNSEL LLC $48,081,230 1.54% 428,188
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $47,801,516 1.53% 425,697
Mega Invesco Ltd. $46,969,220 1.50% 418,285
Mid Pertento Partners LLP $46,323,667 1.48% 412,536
Mega MILLENNIUM MANAGEMENT LLC $44,443,146 1.42% 395,789
Mega UBS Group AG $44,009,369 1.41% 391,926
Large VOYA INVESTMENT MANAGEMENT LLC $42,878,384 1.37% 381,854
Small HERALD INVESTMENT MANAGEMENT Ltd $41,289,033 1.32% 367,700
Small Ophir Asset Management Pty Ltd $40,092,470 1.28% 357,044
Large Qube Research & Technologies Ltd $39,472,405 1.26% 351,522
Mid CastleKnight Management LP $36,323,007 1.16% 323,475
Mega WELLINGTON MANAGEMENT GROUP LLP $34,168,273 1.09% 304,286
Mid SCHWARTZ INVESTMENT COUNSEL INC $33,687,000 1.08% 300,000
Mid OBERWEIS ASSET MANAGEMENT INC/ $31,727,539 1.01% 282,550
Large MARSHALL WACE, LLP $31,059,412 0.99% 276,600
Mega TWO SIGMA INVESTMENTS, LP $30,832,251 0.98% 274,577
Large Boston Partners $30,632,375 0.98% 272,797
Mid FRONTIER CAPITAL MANAGEMENT CO LLC $30,582,855 0.98% 272,356
Mid HEARTLAND ADVISORS INC $28,306,512 0.90% 252,084
Small Apis Capital Advisors, LLC $27,982,668 0.89% 249,200
Mega BANK OF AMERICA CORP /DE/ Bank $27,442,214 0.88% 244,387
Mega MORGAN STANLEY $23,690,267 0.76% 210,974
Large VOLORIDGE INVESTMENT MANAGEMENT, LLC $23,614,811 0.75% 210,302
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $23,613,910 0.75% 210,294
Large Russell Investments Group, Ltd. $22,834,503 0.73% 203,353
Small AIGH Capital Management LLC $22,458,000 0.72% 200,000
Mid Granahan Investment Management, LLC $21,924,847 0.70% 195,252
Large LOOMIS SAYLES & CO L P $21,183,844 0.68% 188,653
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $20,459,238 0.65% 182,200
Mid CastleKnight Management LP $20,212,200 0.65% 180,000
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $19,727,893 0.63% 175,687
Large First Eagle Investment Management, LLC $18,914,015 0.60% 168,439
Large FRED ALGER MANAGEMENT, LLC $18,066,448 0.58% 160,891
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $17,704,202 0.57% 157,665
Large BAHL & GAYNOR INC $17,468,393 0.56% 155,565
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $15,561,709 0.50% 138,585
Mega NORTHERN TRUST CORP Bank $14,034,003 0.45% 124,980
Mega ENVESTNET ASSET MANAGEMENT INC $13,141,074 0.42% 117,028
Mid ALPINE ASSOCIATES MANAGEMENT INC. $13,124,230 0.42% 116,878
Small KNIGHTSBRIDGE ASSET MANAGEMENT, LLC $12,750,978 0.41% 113,554
Mid CloudAlpha Capital Management Limited/Hong Kong $12,351,900 0.39% 110,000
Large SEI INVESTMENTS CO $12,247,807 0.39% 109,073
Mid ROYCE & ASSOCIATES LP $12,041,979 0.38% 107,240
Large BLAIR WILLIAM & CO/IL $11,585,969 0.37% 103,179
Large M&G PLC $10,356,394 0.33% 92,229
Mega JANE STREET GROUP, LLC $10,184,703 0.33% 90,700
Mega STATE STREET CORP $10,123,280 0.32% 90,153
Small Strategic Wealth Partners, Ltd. $9,676,141 0.31% 86,171
Large Balyasny Asset Management L.P. $9,541,056 0.30% 84,968
Small Prospect Capital Advisors, LLC $9,234,729 0.29% 82,240
Mega WELLS FARGO & COMPANY/MN $9,027,666 0.29% 80,396
Mid Susquehanna Portfolio Strategies, LLC $8,682,487 0.28% 77,322
Large PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO Pension $8,646,330 0.28% 77,000
Mega BlackRock, Inc. $8,498,105 0.27% 75,680
Large Walleye Capital LLC $8,249,721 0.26% 73,468
Mid ABN AMRO INVESTMENT SOLUTIONS $8,210,195 0.26% 73,116
Large Janney Montgomery Scott LLC $8,193,239 0.26% 72,965
Mega NEUBERGER BERMAN GROUP LLC $8,080,051 0.26% 71,957
Mega RAYMOND JAMES FINANCIAL INC $7,705,001 0.25% 68,617
Mega CITADEL ADVISORS LLC $7,252,810 0.23% 64,590
Mid HARBOR CAPITAL ADVISORS, INC. $7,189,254 0.23% 64,024
Mid ODDO BHF ASSET MANAGEMENT SAS $6,737,400 0.22% 60,000
Mid SORA INVESTORS LLC $6,531,460 0.21% 58,166
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $6,400,530 0.20% 57,000
Mid Melqart Asset Management (UK) Ltd $6,189,873 0.20% 55,124
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $6,140,803 0.20% 54,687
Mid OVERSEA-CHINESE BANKING Corp Ltd $5,948,786 0.19% 52,977
Large Tidal Investments LLC $5,551,842 0.18% 49,442
Small Skylands Capital, LLC $5,521,187 0.18% 49,169
Mega ROYAL BANK OF CANADA Bank $5,506,363 0.18% 49,037
Mid Emerald Investment Advisers, LLC $5,396,545 0.17% 48,059
Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Pension $5,275,159 0.17% 46,978
Small THAMES CAPITAL MANAGEMENT LLC $5,203,967 0.17% 46,344
Mega GEODE CAPITAL MANAGEMENT, LLC $4,867,097 0.16% 43,344
Mid KORNITZER CAPITAL MANAGEMENT INC /KS $4,826,785 0.15% 42,985
Mid BOOTHBAY FUND MANAGEMENT, LLC $4,478,798 0.14% 39,886
Mega AMERIPRISE FINANCIAL INC $4,438,823 0.14% 39,530
Mid Y-Intercept (Hong Kong) Ltd $4,418,611 0.14% 39,350
Small SCALAR GAUGE MANAGEMENT, LLC $4,379,310 0.14% 39,000
Mid Jump Financial, LLC $4,132,608 0.13% 36,803
Mega JANE STREET GROUP, LLC $4,088,478 0.13% 36,410
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $4,044,124 0.13% 36,015
Small Ramirez Asset Management, Inc. $3,636,399 0.12% 32,384
Mega CITADEL ADVISORS LLC $3,593,280 0.11% 32,000
Mega FIRST TRUST ADVISORS LP $3,210,371 0.10% 28,590
Key facts CIK 1329394 CUSIP 82706C108 13F (30d) 4 filings 3 filers Visit website Investor relations

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