SILICON MOTION TECHNOLOGY CO SIMO
SPONSORED ADR · ADR · CUSIP 82706C108 · ISIN US82706C1080
American-Taiwanese electronics technology company
- SectorTechnology
- IndustrySemiconductors & Related Devices
- HeadquartersTaiwan, Taiwan
- Founded1995
- Websitesiliconmotion.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($22.6m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $92.83. Options: 10 managers hold calls ($24.9m notional), 8 hold puts ($14.3m).
Trends to Q4 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 202 |
| Q4 2022 | 198 |
| Q1 2023 | 198 |
| Q2 2023 | 203 |
| Q3 2023 | 195 |
| Q4 2023 | 206 |
| Q1 2024 | 213 |
| Q2 2024 | 236 |
| Q3 2024 | 204 |
| Q4 2024 | 204 |
| Q1 2025 | 192 |
| Q2 2025 | 214 |
| Q3 2025 | 221 |
| Q4 2025 | 242 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 117 | 103 |
| Q2 2024 | 136 | 86 |
| Q3 2024 | 96 | 125 |
| Q4 2024 | 98 | 107 |
| Q1 2025 | 104 | 94 |
| Q2 2025 | 113 | 100 |
| Q3 2025 | 109 | 109 |
| Q4 2025 | 121 | 101 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $23.5m | $9.4m | 0.40 |
| Q2 2025 | $36.1m | $22.9m | 0.64 |
| Q3 2025 | $58.7m | $54.4m | 0.93 |
| Q4 2025 | $24.9m | $14.3m | 0.57 |
Biggest buyers
| Wolf Hill Capital Management, LP | New | +581.4k |
| HAWK RIDGE CAPITAL MANAGEMENT LP | Added | +415.0k |
| Man Group plc | Added | +339.7k |
| TWO SIGMA INVESTMENTS, LP | Added | +302.5k |
| Robeco Institutional Asset Management B.V. | Added | +181.2k |
| CRAMER ROSENTHAL MCGLYNN LLC | New | +143.6k |
| HIGHLAND PEAK CAPITAL, LLC | Added | +120.7k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Added | +114.2k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | New | +112.5k |
| TWO SIGMA ADVISERS, LP | Added | +101.5k |
Biggest sellers
| Point72 Asset Management, L.P. | Sold out | -700.0k |
| Erste Asset Management GmbH | Reduced | -660.0k |
| FRONTIER CAPITAL MANAGEMENT CO LLC | Reduced | -531.6k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Reduced | -379.9k |
| Invesco Ltd. | Reduced | -273.8k |
| ALPINE ASSOCIATES MANAGEMENT INC. | Reduced | -167.5k |
| Boston Partners | Reduced | -155.6k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Reduced | -140.3k |
| LORD, ABBETT & CO. LLC | Reduced | -139.7k |
| Pertento Partners LLP | Reduced | -139.0k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $9.5m102.3k shares |
| JANE STREET GROUP, LLC | Reduced | $5.4m58.1k shares |
| CITADEL ADVISORS LLC | Reduced | $3.0m32.7k shares |
| GROUP ONE TRADING LLC | Reduced | $2.9m31.4k shares |
| IMC-Chicago, LLC | Reduced | $1.7m18.8k shares |
| CastleKnight Management LP | New | $1.3m13.7k shares |
| TWO SIGMA INVESTMENTS, LP | New | $435.7k4.7k shares |
| Walleye Trading LLC | Reduced | $268.8k2.9k shares |
| TUDOR INVESTMENT CORP ET AL | New | $231.8k2.5k shares |
| Walleye Capital LLC | New | $92.7k1.0k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $6.9m74.3k shares |
| JANE STREET GROUP, LLC | Reduced | $2.7m29.6k shares |
| CITADEL ADVISORS LLC | Added | $2.6m27.7k shares |
| GROUP ONE TRADING LLC | Reduced | $1.4m15.3k shares |
| TWO SIGMA INVESTMENTS, LP | New | $259.6k2.8k shares |
| Walleye Trading LLC | Reduced | $148.3k1.6k shares |
| Walleye Capital LLC | New | $148.3k1.6k shares |
| FIFTH LANE CAPITAL, LP | New | $92.7k1.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| FMR LLC 13G · institution -3.3 pts · filed 2026-08-06 | 6.7% |
Insider purchases and sales in Q4 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
None reported in Q4 2025.
Holders, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.02% of their portfolio | 3.4m $315.0m | Added +8 |
| REINHART PARTNERS, LLC. 4.37% of their portfolio | 1.6m $145.9m | Added +72.4k |
| ACADIAN ASSET MANAGEMENT LLC 0.19% of their portfolio | 1.3m $118.5m | Reduced -22.6k |
| Pertento Partners LLP 11.73% of their portfolio | 1.2m $106.7m | Reduced -139.0k |
| LORD, ABBETT & CO. LLC 0.28% of their portfolio | 995.0k $92.2m | Reduced -139.7k |
| HAWK RIDGE CAPITAL MANAGEMENT LP 3.37% of their portfolio | 787.7k $73.0m | Added +415.0k |
| LAZARD ASSET MANAGEMENT LLC 0.12% of their portfolio | 758.6k $70.3m | Reduced -25.1k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 697.0k $64.6m | Added +1.0k |
| Invesco Ltd. 0.01% of their portfolio | 632.1k $58.6m | Reduced -273.8k |
| Robeco Institutional Asset Management B.V. 0.08% of their portfolio | 624.0k $57.8m | Added +181.2k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 1.27% of their portfolio | 582.8k $54.0m | Reduced -5.5k |
| Wolf Hill Capital Management, LP 6.28% of their portfolio | 581.4k $53.9m | New |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 1.39% of their portfolio | 534.9k $49.6m | Reduced -23.1k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.50% of their portfolio | 511.5k $47.4m | Reduced -531.6k |
| HIGHLAND PEAK CAPITAL, LLC 17.75% of their portfolio | 496.6k $46.0m | Added +120.7k |
| NEUMEIER POMA INVESTMENT COUNSEL LLC 3.69% of their portfolio | 481.8k $44.7m | Added +3.4k |
| Ophir Asset Management Pty Ltd 4.86% of their portfolio | 467.6k $43.3m | Reduced -37.9k |
| Kite Lake Capital Management (UK) LLP 82.75% of their portfolio | 456.3k $42.3m | Added +91.3k |
| HERALD INVESTMENT MANAGEMENT Ltd 4.66% of their portfolio | 384.9k $35.6m | Unchanged |
| Boston Partners 0.04% of their portfolio | 383.8k $35.6m | Reduced -155.6k |
| Man Group plc 0.07% of their portfolio | 381.0k $35.3m | Added +339.7k |
| TWO SIGMA INVESTMENTS, LP 0.05% of their portfolio | 379.8k $35.2m | Added +302.5k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.05% of their portfolio | 371.7k $34.5m | Reduced -74.5k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.03% of their portfolio | 364.8k $33.8m | Reduced -140.3k |
| UBS Group AG 0.01% of their portfolio | 351.5k $32.6m | Added +98.5k |
| Driehaus Capital Management LLC 0.20% of their portfolio | 319.6k $29.6m | Reduced -11.3k |
| Think Investments LP 3.43% of their portfolio | 289.3k $26.8m | Unchanged |
| HEARTLAND ADVISORS INC 1.36% of their portfolio | 272.4k $25.3m | Reduced -83.4k |
| MORGAN STANLEY 0.00% of their portfolio | 264.9k $24.6m | Added +86.7k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.80% of their portfolio | 236.3k $21.9m | Added +5.7k |
| Granahan Investment Management, LLC 0.91% of their portfolio | 229.1k $21.2m | Added +21.4k |
| SCHWARTZ INVESTMENT COUNSEL INC 0.71% of their portfolio | 220.0k $20.4m | Unchanged |
| Apis Capital Advisors, LLC 3.46% of their portfolio | 214.1k $19.8m | Reduced -71.9k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 206.7k $19.2m | Reduced -379.9k |
| M&G PLC 0.10% of their portfolio | 202.8k $18.9m | Added +21.8k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 200.5k $18.6m | Added +114.2k |
| Russell Investments Group, Ltd. 0.02% of their portfolio | 198.7k $18.3m | Reduced -46.7k |
| ODDO BHF ASSET MANAGEMENT SAS 0.67% of their portfolio | 192.5k $17.8m | Reduced -25.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 183.4k $17.0m | Added +2.4k |
| First Eagle Investment Management, LLC 0.03% of their portfolio | 153.5k $14.2m | Added +3.0k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 147.0k $13.6m | Reduced -66.2k |
| CRAMER ROSENTHAL MCGLYNN LLC 0.86% of their portfolio | 143.6k $13.3m | New |
| Balyasny Asset Management L.P. 0.02% of their portfolio | 142.6k $13.2m | Added +15.3k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 133.1k $12.3m | Added +60.3k |
| Clearline Capital LP 0.93% of their portfolio | 132.9k $12.3m | Reduced -36.8k |
| MARSHALL WACE, LLP 0.01% of their portfolio | 132.7k $12.3m | Added +77.2k |
| SORA INVESTORS LLC 1.02% of their portfolio | 128.2k $11.9m | Added +56.7k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 125.5k $11.6m | Reduced -11.5k |
| TWO SIGMA ADVISERS, LP 0.02% of their portfolio | 124.7k $11.6m | Added +101.5k |
| EASTERLY INVESTMENT PARTNERS LLC 0.70% of their portfolio | 123.8k $11.5m | Reduced -218 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.04% of their portfolio | 112.5k $10.4m | New |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.02% of their portfolio | 109.1k $10.1m | First filing |
| ABN AMRO INVESTMENT SOLUTIONS 0.15% of their portfolio | 106.9k $9.9m | Added +65.7k |
| KNIGHTSBRIDGE ASSET MANAGEMENT, LLC 1.53% of their portfolio | 102.7k $9.5m | Added +1.6k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 102.0k $9.5m | Added +23.5k |
| Melqart Asset Management (UK) Ltd 0.91% of their portfolio | 98.4k $9.1m | Reduced -7.8k |
| SEI INVESTMENTS CO 0.01% of their portfolio | 95.4k $8.8m | Added +34.2k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 95.4k $8.8m | New |
| ROYCE & ASSOCIATES LP 0.09% of their portfolio | 92.5k $8.6m | Added +27.0k |
| STATE STREET CORP 0.00% of their portfolio | 91.0k $8.4m | Added +10.8k |
| SG Capital Management LLC 0.92% of their portfolio | 90.4k $8.4m | New |
| Janney Montgomery Scott LLC 0.02% of their portfolio | 88.8k $8.2m | Added +146 |
| Prospect Capital Advisors, LLC 4.22% of their portfolio | 88.3k $8.2m | Unchanged |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 88.0k $8.2m | Reduced -21.9k |
| Capitolis Liquid Global Markets LLC 0.05% of their portfolio | 83.9k $7.8m | New |
| CastleKnight Management LP 0.43% of their portfolio | 82.2k $7.6m | New |
| Strategic Wealth Partners, Ltd. 0.51% of their portfolio | 80.9k $7.5m | Added +79.5k |
| ALPINE ASSOCIATES MANAGEMENT INC. 0.50% of their portfolio | 80.0k $7.4m | Reduced -167.5k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 79.4k $7.4m | New |
| Susquehanna Portfolio Strategies, LLC 0.11% of their portfolio | 77.3k $7.2m | Unchanged |
| OVERSEA-CHINESE BANKING Corp Ltd 0.19% of their portfolio | 75.7k $7.0m | New |
| Walleye Capital LLC 0.04% of their portfolio | 70.7k $6.6m | New |
| BlackRock, Inc. 0.00% of their portfolio | 70.2k $6.5m | Reduced -8.7k |
| Concentric Capital Strategies, LP 0.33% of their portfolio | 69.0k $6.4m | Reduced -29.9k |
| HARBOR CAPITAL ADVISORS, INC. 0.49% of their portfolio | 68.6k $6.4m | Added +1.3k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 67.9k $6.3m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 66.7k $6.2m | Added +1.0k |
| SummitTX Capital, L.P. 0.18% of their portfolio | 64.1k $5.9m | Reduced -34.0k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.15% of their portfolio | 63.1k $5.8m | Added +14.5k |
| Jain Global LLC 0.06% of their portfolio | 61.8k $5.7m | Added +35.8k |
| OSTERWEIS CAPITAL MANAGEMENT INC 0.22% of their portfolio | 56.3k $5.2m | Added +18.4k |
| Skylands Capital, LLC 0.67% of their portfolio | 53.2k $4.9m | Added +14.6k |
| F/m Investments LLC 0.17% of their portfolio | 49.0k $4.5m | Reduced -1.3k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 46.9k $4.3m | Reduced -6.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 43.9k $4.1m | Added +2.5k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 41.7k $3.9m | Reduced -2.2k |
| 1492 Capital Management LLC 1.48% of their portfolio | 41.7k $3.9m | Added +1.3k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio | 41.2k $3.8m | Unchanged |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 39.0k $3.6m | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 38.0k $3.5m | Reduced -2.4k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.00% of their portfolio | 37.7k $3.4m | Added +31.8k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 36.7k $3.4m | Reduced -12.5k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 36.0k $3.3m | Unchanged |
| Heights Point Management, LP 2.75% of their portfolio | 34.8k $3.2m | First filing |
| OAK ASSOCIATES LTD /OH/ 0.18% of their portfolio | 32.3k $3.0m | Reduced -590 |
| XTX Topco Ltd 0.08% of their portfolio | 31.9k $3.0m | New |
| Ramirez Asset Management, Inc. 0.39% of their portfolio | 31.6k $2.9m | Reduced -1.7k |
| VAN ECK ASSOCIATES CORP 0.00% of their portfolio | 31.2k $2.9m | Reduced -806 |
| Tidal Investments LLC 0.01% of their portfolio | 28.1k $2.6m | Added +6.9k |
| Vident Advisory, LLC 0.02% of their portfolio | 26.5k $2.5m | Reduced -1.7k |