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 ($15.1m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $75.18. Options: 10 managers hold calls ($36.1m notional), 10 hold puts ($22.9m).
Trends to Q2 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 110 | 118 |
| Q4 2023 | 121 | 90 |
| Q1 2024 | 117 | 103 |
| Q2 2024 | 136 | 86 |
| Q3 2024 | 96 | 125 |
| Q4 2024 | 98 | 107 |
| Q1 2025 | 104 | 94 |
| Q2 2025 | 113 | 100 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $34.6m | $20.6m | 0.59 |
| Q4 2024 | $44.6m | $15.1m | 0.34 |
| Q1 2025 | $23.5m | $9.4m | 0.40 |
| Q2 2025 | $36.1m | $22.9m | 0.64 |
Biggest buyers
| Point72 Asset Management, L.P. | Added | +963.9k |
| FRONTIER CAPITAL MANAGEMENT CO LLC | Added | +686.3k |
| FMR LLC | Added | +602.0k |
| Ophir Asset Management Pty Ltd | New | +364.6k |
| HIGHLAND PEAK CAPITAL, LLC | New | +345.4k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | Added | +230.0k |
| HAWK RIDGE CAPITAL MANAGEMENT LP | New | +216.9k |
| Boston Partners | Added | +183.5k |
| SORA INVESTORS LLC | Added | +177.9k |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +154.4k |
Biggest sellers
| Invesco Ltd. | Reduced | -769.7k |
| Rubric Capital Management LP | Sold out | -700.9k |
| MORGAN STANLEY | Reduced | -540.2k |
| LMR Partners LLP | Reduced | -405.0k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | Sold out | -296.7k |
| STATE OF WISCONSIN INVESTMENT BOARD | Reduced | -247.2k |
| Point72 Hong Kong Ltd | Reduced | -176.3k |
| SG Capital Management LLC | Reduced | -156.8k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Reduced | -152.2k |
| Kite Lake Capital Management (UK) LLP | Reduced | -120.6k |
Biggest calls
| GROUP ONE TRADING LLC | Added | $11.4m151.1k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $10.7m142.6k shares |
| PEAK6 LLC | Added | $7.7m102.4k shares |
| JANE STREET GROUP, LLC | Added | $2.9m38.6k shares |
| CITADEL ADVISORS LLC | Reduced | $1.6m20.7k shares |
| IMC-Chicago, LLC | Added | $1.2m16.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $308.0k4.1k shares |
| WOLVERINE TRADING, LLC | Reduced | $287.9k3.8k shares |
| Walleye Trading LLC | Reduced | $75.2k1.0k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| Walleye Trading LLC | Added | $8.5m113.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $6.9m92.0k shares |
| JANE STREET GROUP, LLC | New | $2.7m36.0k shares |
| CITADEL ADVISORS LLC | Reduced | $1.4m19.1k shares |
| GROUP ONE TRADING LLC | Reduced | $1.4m18.1k shares |
| SIMPLEX TRADING, LLC | Added | $1.1m14.1k shares |
| Black Maple Capital Management LP | New | $375.9k5.0k shares |
| WOLVERINE TRADING, LLC | Reduced | $341.0k4.5k shares |
| TUDOR INVESTMENT CORP ET AL | Reduced | $203.0k2.7k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 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 Q2 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 Q2 2025.
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.01% of their portfolio | 2.7m $206.3m | Added +602.0k |
| REINHART PARTNERS, LLC. 3.78% of their portfolio | 1.5m $110.6m | Added +107.3k |
| ACADIAN ASSET MANAGEMENT LLC 0.20% of their portfolio | 1.3m $98.5m | Added +52.0k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.89% of their portfolio | 1.3m $96.3m | Added +686.3k |
| Pertento Partners LLP 10.68% of their portfolio | 1.3m $94.6m | Added +49.5k |
| LORD, ABBETT & CO. LLC 0.30% of their portfolio | 1.2m $93.9m | Reduced -17.9k |
| Point72 Asset Management, L.P. 0.19% of their portfolio | 1.1m $80.0m | Added +963.9k |
| Invesco Ltd. 0.01% of their portfolio | 905.9k $68.1m | Reduced -769.7k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 850.0k $63.9m | Added +154.4k |
| LAZARD ASSET MANAGEMENT LLC 0.08% of their portfolio | 765.9k $57.6m | Added +126.6k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.02% of their portfolio | 742.4k $55.8m | Reduced -15.1k |
| Boston Partners 0.06% of their portfolio | 735.6k $55.3m | Added +183.5k |
| Erste Asset Management GmbH 0.42% of their portfolio | 664.0k $49.9m | Unchanged |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.04% of their portfolio | 646.9k $48.6m | Reduced -152.2k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 1.20% of their portfolio | 597.5k $44.9m | Added +3.8k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.08% of their portfolio | 596.9k $44.9m | Reduced -49.4k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 1.51% of their portfolio | 513.9k $38.6m | Added +230.0k |
| NEUMEIER POMA INVESTMENT COUNSEL LLC 3.03% of their portfolio | 432.3k $32.5m | Added +79.2k |
| HEARTLAND ADVISORS INC 1.68% of their portfolio | 401.7k $30.2m | Reduced -49.0k |
| Kite Lake Capital Management (UK) LLP 46.84% of their portfolio | 391.5k $29.4m | Reduced -120.6k |
| HERALD INVESTMENT MANAGEMENT Ltd 4.28% of their portfolio | 384.9k $28.9m | Unchanged |
| Ophir Asset Management Pty Ltd 4.44% of their portfolio | 364.6k $27.9m | New |
| Think Investments LP 4.55% of their portfolio | 349.4k $26.3m | Unchanged |
| HIGHLAND PEAK CAPITAL, LLC 10.62% of their portfolio | 345.4k $26.0m | New |
| ALPINE ASSOCIATES MANAGEMENT INC. 1.34% of their portfolio | 332.0k $25.0m | Reduced -2.3k |
| Robeco Institutional Asset Management B.V. 0.04% of their portfolio | 307.1k $23.1m | Added +43.9k |
| SORA INVESTORS LLC 2.07% of their portfolio | 305.4k $23.0m | Added +177.9k |
| Russell Investments Group, Ltd. 0.03% of their portfolio | 268.3k $20.2m | Added +9.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 268.1k $20.2m | Added +39.0k |
| M&G PLC 0.11% of their portfolio | 263.2k $19.7m | Added +34.9k |
| Apis Capital Advisors, LLC 6.84% of their portfolio | 256.0k $19.2m | Added +92.0k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.75% of their portfolio | 230.6k $17.3m | Added +47.5k |
| Clearline Capital LP 1.51% of their portfolio | 227.6k $17.1m | Reduced -62.2k |
| SCHWARTZ INVESTMENT COUNSEL INC 0.54% of their portfolio | 220.0k $16.5m | Added +30.0k |
| ODDO BHF ASSET MANAGEMENT SAS 0.62% of their portfolio | 217.5k $16.3m | Unchanged |
| HAWK RIDGE CAPITAL MANAGEMENT LP 0.68% of their portfolio | 216.9k $16.3m | New |
| Polar Asset Management Partners Inc. 0.39% of their portfolio | 205.8k $15.5m | Added +92.5k |
| HARBOR CAPITAL ADVISORS, INC. 0.64% of their portfolio | 202.7k $15.2m | Added +80.2k |
| EASTERLY INVESTMENT PARTNERS LLC 1.09% of their portfolio | 201.4k $15.1m | Reduced -7.2k |
| UBS Group AG 0.00% of their portfolio | 186.5k $14.0m | Reduced -10.6k |
| MORGAN STANLEY 0.00% of their portfolio | 185.6k $14.0m | Reduced -540.2k |
| SummitTX Capital, L.P. 0.60% of their portfolio | 180.0k $13.5m | Added +55.3k |
| First Eagle Investment Management, LLC 0.02% of their portfolio | 146.2k $11.0m | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 144.8k $10.9m | Added +75.2k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 138.5k $10.4m | Added +572 |
| Granahan Investment Management, LLC 0.40% of their portfolio | 130.1k $9.8m | New |
| Prospect Capital Advisors, LLC 5.81% of their portfolio | 128.3k $9.6m | Unchanged |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 125.0k $9.4m | Reduced -33.6k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 119.7k $9.0m | Reduced -117.6k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 114.8k $8.6m | Added +21.0k |
| SG Capital Management LLC 0.73% of their portfolio | 113.9k $8.6m | Reduced -156.8k |
| KNIGHTSBRIDGE ASSET MANAGEMENT, LLC 1.70% of their portfolio | 103.0k $7.7m | New |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 102.5k $7.7m | New |
| Balyasny Asset Management L.P. 0.02% of their portfolio | 99.3k $7.5m | Reduced -105.6k |
| Cinctive Capital Management LP 0.40% of their portfolio | 94.9k $7.1m | New |
| Taconic Capital Advisors LP 0.76% of their portfolio | 87.9k $6.6m | Reduced -30.0k |
| Driehaus Capital Management LLC 0.05% of their portfolio | 87.7k $6.6m | New |
| Janney Montgomery Scott LLC 0.02% of their portfolio | 86.6k $6.5m | Added +2.3k |
| Jain Global LLC 0.09% of their portfolio | 77.6k $5.8m | Reduced -105.6k |
| Susquehanna Portfolio Strategies, LLC 0.13% of their portfolio | 77.3k $5.8m | New |
| Concentric Capital Strategies, LP 0.32% of their portfolio | 74.3k $5.6m | New |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 74.1k $5.6m | New |
| Ramirez Asset Management, Inc. 0.84% of their portfolio | 74.0k $5.6m | Reduced -1.2k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 69.3k $5.2m | Reduced -4.7k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 65.0k $4.9m | Added +15.4k |
| SEI INVESTMENTS CO 0.01% of their portfolio | 65.0k $4.9m | Added +4.6k |
| BlackRock, Inc. 0.00% of their portfolio | 58.3k $4.4m | Reduced -18.6k |
| Melqart Asset Management (UK) Ltd 0.62% of their portfolio | 57.9k $4.4m | Reduced -65.5k |
| Capitolis Liquid Global Markets LLC 0.03% of their portfolio | 57.5k $4.3m | New |
| STATE STREET CORP 0.00% of their portfolio | 56.5k $4.2m | Reduced -68 |
| BOOTHBAY FUND MANAGEMENT, LLC 0.13% of their portfolio | 56.0k $4.2m | New |
| ABN AMRO INVESTMENT SOLUTIONS 0.08% of their portfolio | 55.6k $4.2m | Added +7.5k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 52.7k $4.0m | Reduced -3.5k |
| Skylands Capital, LLC 0.57% of their portfolio | 52.0k $3.9m | Reduced -20.0k |
| F/m Investments LLC 0.14% of their portfolio | 50.7k $3.8m | Added +76 |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 50.7k $3.8m | Reduced -247.2k |
| LMR Partners LLP 0.05% of their portfolio | 45.0k $3.4m | Reduced -405.0k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 43.3k $3.3m | New |
| Marex Group Ltd 0.06% of their portfolio | 42.5k $3.2m | New |
| MARSHALL WACE, LLP 0.00% of their portfolio | 42.5k $3.2m | Reduced -2.4k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio | 41.2k $3.1m | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 37.8k $2.8m | Added +962 |
| 1492 Capital Management LLC 1.25% of their portfolio | 36.2k $2.7m | Added +4.8k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 36.0k $2.7m | Unchanged |
| OAK ASSOCIATES LTD /OH/ 0.16% of their portfolio | 33.0k $2.5m | Reduced -1.1k |
| Cerity Partners LLC 0.00% of their portfolio | 30.2k $2.3m | Reduced -1.2k |
| Vident Advisory, LLC 0.02% of their portfolio | 29.3k $2.2m | Added +20.0k |
| Lombard Odier Asset Management (USA) Corp 0.55% of their portfolio | 29.0k $2.2m | Added +128 |
| RENAISSANCE GROUP LLC 0.08% of their portfolio | 28.2k $2.1m | Reduced -4.1k |
| GAMCO INVESTORS, INC. ET AL 0.02% of their portfolio | 26.2k $2.0m | New |
| XTX Topco Ltd 0.07% of their portfolio | 23.7k $1.8m | New |
| GSA CAPITAL PARTNERS LLP 0.12% of their portfolio | 23.2k $1.7m | New |
| Point72 Hong Kong Ltd 0.11% of their portfolio | 21.7k $1.6m | Reduced -176.3k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 20.3k $1.5m | Reduced -70.7k |
| Manatuck Hill Partners, LLC 0.57% of their portfolio | 20.0k $1.5m | New |
| TEALWOOD ASSET MANAGEMENT INC 0.62% of their portfolio | 18.6k $1.4m | Reduced -28 |
| Orion Porfolio Solutions, LLC 0.01% of their portfolio | 17.7k $1.3m | Added +159 |
| NAPLES GLOBAL ADVISORS, LLC 0.11% of their portfolio | 17.7k $1.3m | Reduced -4.4k |
| GABELLI & Co INVESTMENT ADVISERS, INC. 0.19% of their portfolio | 16.7k $1.3m | Reduced -17.9k |
| GABELLI FUNDS LLC 0.01% of their portfolio | 16.5k $1.2m | Reduced -13.5k |