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 ($11.5m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $76.94. Options: 13 managers hold calls ($54.8m notional), 12 hold puts ($35.7m).
Trends to Q1 2024
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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 110 | 98 |
| Q1 2023 | 100 | 98 |
| Q2 2023 | 86 | 116 |
| Q3 2023 | 110 | 118 |
| Q4 2023 | 121 | 90 |
| Q1 2024 | 117 | 103 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2023 | $428.6m | $459.5m | 1.07 |
| Q3 2023 | $108.4m | $69.6m | 0.64 |
| Q4 2023 | $87.2m | $42.1m | 0.48 |
| Q1 2024 | $54.8m | $35.7m | 0.65 |
Biggest buyers
| LORD, ABBETT & CO. LLC | New | +1.4m |
| ACADIAN ASSET MANAGEMENT LLC | Added | +825.4k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Added | +707.2k |
| FARALLON CAPITAL MANAGEMENT, L.L.C. | Added | +608.9k |
| FMR LLC | Added | +390.0k |
| LMR Partners LLP | New | +350.0k |
| HAWK RIDGE CAPITAL MANAGEMENT LP | Added | +348.8k |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +318.3k |
| VOYA INVESTMENT MANAGEMENT LLC | New | +313.1k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | New | +262.4k |
Biggest sellers
| MORGAN STANLEY | Reduced | -1.6m |
| COOPER CREEK PARTNERS MANAGEMENT LLC | Sold out | -667.5k |
| Segantii Capital Management Ltd | Reduced | -522.7k |
| ALPINE ASSOCIATES MANAGEMENT INC. | Reduced | -520.9k |
| CITADEL ADVISORS LLC | Reduced | -310.1k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -267.7k |
| Melqart Asset Management (UK) Ltd | Reduced | -257.1k |
| Balyasny Asset Management L.P. | Reduced | -248.4k |
| Hudson Bay Capital Management LP | Reduced | -242.4k |
| JANE STREET GROUP, LLC | Reduced | -230.3k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $11.4m148.1k shares |
| Pertento Partners LLP | New | $8.5m110.0k shares |
| CastleKnight Management LP | Unchanged | $7.7m100.0k shares |
| PEAK6 Investments LLC | Reduced | $5.7m74.5k shares |
| GROUP ONE TRADING LLC | Reduced | $4.8m62.1k shares |
| CITADEL ADVISORS LLC | Added | $4.1m53.9k shares |
| JANE STREET GROUP, LLC | Reduced | $3.7m48.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $3.6m47.3k shares |
| Walleye Trading LLC | Added | $3.3m42.5k shares |
| WOLVERINE TRADING, LLC | New | $1.2m15.5k shares |
Biggest puts
| SIMPLEX TRADING, LLC | Reduced | $10.4m135.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $6.7m87.3k shares |
| Walleye Trading LLC | Reduced | $6.4m83.4k shares |
| CITADEL ADVISORS LLC | Added | $4.2m55.1k shares |
| JANE STREET GROUP, LLC | Added | $2.7m35.2k shares |
| GROUP ONE TRADING LLC | Reduced | $1.8m23.5k shares |
| PEAK6 Investments LLC | Reduced | $1.7m22.7k shares |
| Walleye Capital LLC | Reduced | $1.1m14.7k shares |
| WOLVERINE TRADING, LLC | New | $400.1k5.2k shares |
| SUMMIT SECURITIES GROUP LLC | New | $77.0k1.0k 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 Q1 2024
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 Q1 2024.
Holders, Q1 2024
| Manager | Shares | Change |
|---|---|---|
| MORGAN STANLEY 0.00% of their portfolio | 1.9m $142.9m | Reduced -1.6m |
| LORD, ABBETT & CO. LLC 0.17% of their portfolio | 1.4m $107.4m | New |
| ACADIAN ASSET MANAGEMENT LLC 0.36% of their portfolio | 1.3m $102.8m | Added +825.4k |
| HAWK RIDGE CAPITAL MANAGEMENT LP 4.49% of their portfolio | 1.3m $99.5m | Added +348.8k |
| WELLINGTON MANAGEMENT GROUP LLP 0.02% of their portfolio | 1.1m $87.5m | Added +318.3k |
| FMR LLC 0.01% of their portfolio | 974.5k $75.0m | Added +390.0k |
| FARALLON CAPITAL MANAGEMENT, L.L.C. 0.39% of their portfolio | 855.4k $65.8m | Added +608.9k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.06% of their portfolio | 797.8k $61.4m | Added +707.2k |
| REINHART PARTNERS, LLC. 2.31% of their portfolio | 736.4k $56.7m | Added +35.6k |
| MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio | 686.7k $52.8m | Reduced -267.7k |
| Erste Asset Management GmbH 0.71% of their portfolio | 680.0k $52.3m | Unchanged |
| Invesco Ltd. 0.01% of their portfolio | 638.7k $49.1m | Added +13.4k |
| Pertento Partners LLP 9.21% of their portfolio | 595.4k $45.8m | Reduced -10.1k |
| Kodai Capital Management LP 0.99% of their portfolio | 548.7k $42.2m | Reduced -170.6k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 532.2k $40.9m | Added +1.4k |
| Melqart Asset Management (UK) Ltd 3.01% of their portfolio | 526.7k $40.5m | Reduced -257.1k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.06% of their portfolio | 442.1k $34.0m | Reduced -226.5k |
| ALPINE ASSOCIATES MANAGEMENT INC. 1.30% of their portfolio | 434.6k $33.4m | Reduced -520.9k |
| HERALD INVESTMENT MANAGEMENT Ltd 4.80% of their portfolio | 384.9k $29.6m | Unchanged |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 1.39% of their portfolio | 378.0k $29.1m | Added +159.3k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.15% of their portfolio | 374.3k $28.8m | Reduced -33.8k |
| LMR Partners LLP 0.69% of their portfolio | 350.0k $26.9m | New |
| D. E. Shaw & Co., Inc. 0.03% of their portfolio | 339.3k $26.1m | Added +10.8k |
| BANK OF MONTREAL /CAN/ 0.01% of their portfolio | 332.8k $25.7m | Reduced -50.7k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 321.4k $24.7m | Reduced -310.1k |
| VOYA INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 313.1k $24.1m | New |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 0.65% of their portfolio | 303.3k $23.3m | Added +25.0k |
| HEARTLAND ADVISORS INC 1.18% of their portfolio | 292.0k $22.5m | Reduced -35.9k |
| Prospect Capital Advisors, LLC 9.50% of their portfolio | 277.4k $21.3m | Added +76.6k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.02% of their portfolio | 262.4k $20.2m | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 258.8k $19.9m | Reduced -57.4k |
| UBS Group AG 0.01% of their portfolio | 257.5k $19.8m | Reduced -16.2k |
| EASTERLY INVESTMENT PARTNERS LLC 1.45% of their portfolio | 246.4k $19.0m | Added +2.1k |
| WATER ISLAND CAPITAL LLC 2.12% of their portfolio | 242.8k $18.7m | Reduced -139.3k |
| Man Group plc 0.05% of their portfolio | 242.6k $18.7m | Added +48.2k |
| Taconic Capital Advisors LP 2.37% of their portfolio | 240.0k $18.5m | Reduced -30.0k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.35% of their portfolio | 220.9k $17.0m | Added +92.4k |
| Think Investments LP 3.78% of their portfolio | 220.2k $16.9m | New |
| OBERWEIS ASSET MANAGEMENT INC/ 1.21% of their portfolio | 217.4k $16.7m | Added +141.0k |
| Granahan Investment Management, LLC 0.58% of their portfolio | 215.7k $16.6m | New |
| CANADA PENSION PLAN INVESTMENT BOARD 0.02% of their portfolio | 203.5k $15.7m | Added +101.1k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 195.9k $15.1m | Added +49.6k |
| TWO SIGMA INVESTMENTS, LP 0.04% of their portfolio | 194.2k $14.9m | Added +104.5k |
| Polar Asset Management Partners Inc. 0.38% of their portfolio | 185.5k $14.3m | Added +15.4k |
| Balyasny Asset Management L.P. 0.03% of their portfolio | 177.1k $13.6m | Reduced -248.4k |
| Segantii Capital Management Ltd 1.32% of their portfolio | 175.0k $13.5m | Reduced -522.7k |
| Clearline Capital LP 1.31% of their portfolio | 172.8k $13.3m | Reduced -152.6k |
| TWO SIGMA ADVISERS, LP 0.03% of their portfolio | 163.1k $12.5m | Added +116.3k |
| Portolan Capital Management, LLC 0.94% of their portfolio | 160.0k $12.3m | New |
| CastleKnight Management LP 1.80% of their portfolio | 159.1k $12.2m | Reduced -8.0k |
| SCHWARTZ INVESTMENT COUNSEL INC 0.42% of their portfolio | 150.0k $11.5m | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 145.3k $11.2m | Reduced -105.7k |
| ROYCE & ASSOCIATES LP 0.09% of their portfolio | 127.3k $9.8m | Added +25.7k |
| BlackRock Inc. 0.00% of their portfolio | 125.1k $9.6m | Added +4.1k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 114.5k $8.8m | Added +42.6k |
| Point72 Asset Management, L.P. 0.02% of their portfolio | 108.3k $8.3m | Added +76.7k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.06% of their portfolio | 106.5k $8.2m | New |
| NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio | 106.0k $8.2m | New |
| MARSHALL WACE, LLP 0.01% of their portfolio | 105.6k $8.1m | Reduced -204.5k |
| Sand Grove Capital Management LLP 1.85% of their portfolio | 105.0k $8.1m | Reduced -14.2k |
| MASO CAPITAL PARTNERS Ltd 5.34% of their portfolio | 93.9k $7.2m | Reduced -20.0k |
| G2 Investment Partners Management LLC 1.87% of their portfolio | 91.2k $7.0m | New |
| 272 Capital LP 2.74% of their portfolio | 89.3k $6.9m | Added +15.1k |
| CAXTON ASSOCIATES LP 0.45% of their portfolio | 85.4k $6.6m | Added +28.4k |
| Janney Montgomery Scott LLC 0.02% of their portfolio | 83.7k $6.4m | Added +10.5k |
| STATE STREET CORP 0.00% of their portfolio | 83.5k $6.4m | Added +2.6k |
| M&G PLC 0.04% of their portfolio | 81.9k $6.3m | First filing |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 80.3k $6.2m | Added +29.9k |
| Crestline Management, L.P. 0.58% of their portfolio | 80.0k $6.2m | Reduced -10.3k |
| Cubist Systematic Strategies, LLC 0.07% of their portfolio | 79.4k $6.1m | Added +12.1k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.02% of their portfolio | 78.7k $6.1m | Reduced -147.5k |
| CAPITAL FUND MANAGEMENT S.A. 0.07% of their portfolio | 71.6k $5.5m | Reduced -5.4k |
| Ramirez Asset Management, Inc. 1.11% of their portfolio | 71.5k $5.5m | Added +989 |
| Alberta Investment Management Corp 0.06% of their portfolio | 70.8k $5.4m | Unchanged |
| THOMPSON SIEGEL & WALMSLEY LLC 0.08% of their portfolio | 70.0k $5.4m | Reduced -9.3k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 65.5k $5.0m | Added +46.2k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.14% of their portfolio | 65.2k $5.0m | Added +31.6k |
| Perpetual Ltd 0.05% of their portfolio | 63.1k $4.8m | Reduced -9.5k |
| Hudson Bay Capital Management LP 0.04% of their portfolio | 61.2k $4.7m | Reduced -242.4k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 57.3k $4.4m | Added +4.7k |
| SEI INVESTMENTS CO 0.01% of their portfolio | 56.0k $4.3m | Added +37.8k |
| Virtus Family Office LLC 6.38% of their portfolio | 51.9k $4.0m | Added +191 |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 50.3k $3.9m | Reduced -319 |
| Walleye Capital LLC 0.04% of their portfolio | 50.2k $3.9m | Added +28.6k |
| GABELLI & Co INVESTMENT ADVISERS, INC. 0.65% of their portfolio | 48.9k $3.8m | Reduced -10.5k |
| Trexquant Investment LP 0.07% of their portfolio | 48.0k $3.7m | Reduced -9.9k |
| GABELLI FUNDS LLC 0.03% of their portfolio | 48.0k $3.7m | Reduced -11.4k |
| Employees Retirement System of Texas 0.04% of their portfolio | 46.0k $3.5m | Added +43.1k |
| Roubaix Capital, LLC 2.22% of their portfolio | 45.7k $3.5m | Added +3.0k |
| Manatuck Hill Partners, LLC 1.52% of their portfolio | 45.0k $3.5m | Added +15.0k |
| Resolute Capital Asset Partners LLC 1.81% of their portfolio | 45.0k $3.5m | New |
| RENAISSANCE GROUP LLC 0.12% of their portfolio | 42.4k $3.3m | Added +1.9k |
| NATIXIS 0.02% of their portfolio | 41.5k $3.2m | Reduced -37.3k |
| Robeco Institutional Asset Management B.V. 0.01% of their portfolio | 41.3k $3.2m | Unchanged |
| Skylands Capital, LLC 0.41% of their portfolio | 38.9k $3.0m | Reduced -3.2k |
| SG Americas Securities, LLC 0.01% of their portfolio | 37.9k $2.9m | Added +3.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 35.0k $2.7m | Added +130 |
| Walleye Trading LLC 0.04% of their portfolio | 33.2k $2.6m | Added +30.0k |
| Quinn Opportunity Partners LLC 0.28% of their portfolio | 32.7k $2.5m | Reduced -51.9k |
| OAK ASSOCIATES LTD /OH/ 0.16% of their portfolio | 30.8k $2.4m | Unchanged |