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 ($10.7m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $54.06. Options: 16 managers hold calls ($44.6m notional), 12 hold puts ($15.1m).
Trends to Q4 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 |
| Q2 2024 | 236 |
| Q3 2024 | 204 |
| Q4 2024 | 204 |
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 2023 | 100 | 98 |
| Q2 2023 | 86 | 116 |
| Q3 2023 | 110 | 118 |
| Q4 2023 | 121 | 90 |
| Q1 2024 | 117 | 103 |
| Q2 2024 | 136 | 86 |
| Q3 2024 | 96 | 125 |
| Q4 2024 | 98 | 107 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2024 | $54.8m | $35.7m | 0.65 |
| Q2 2024 | $67.8m | $28.5m | 0.42 |
| Q3 2024 | $34.6m | $20.6m | 0.59 |
| Q4 2024 | $44.6m | $15.1m | 0.34 |
Biggest buyers
| Rubric Capital Management LP | New | +586.5k |
| UBS Group AG | Added | +364.9k |
| SG Capital Management LLC | New | +277.6k |
| Pertento Partners LLP | Added | +277.5k |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +228.3k |
| LORD, ABBETT & CO. LLC | Added | +221.0k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | Added | +216.9k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | Added | +196.9k |
| Invesco Ltd. | Added | +192.6k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Added | +192.6k |
Biggest sellers
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Sold out | -658.9k |
| MORGAN STANLEY | Reduced | -335.5k |
| VOYA INVESTMENT MANAGEMENT LLC | Sold out | -281.5k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | -265.2k |
| Man Group plc | Reduced | -232.2k |
| JPMORGAN CHASE & CO | Reduced | -201.0k |
| HAWK RIDGE CAPITAL MANAGEMENT LP | Reduced | -199.1k |
| NORGES BANK | Sold out | -190.0k |
| Kodai Capital Management LP | Reduced | -184.9k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -170.0k |
Biggest calls
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | New | $10.9m201.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $7.8m144.9k shares |
| PEAK6 LLC | First filing | $7.6m141.5k shares |
| GROUP ONE TRADING LLC | Reduced | $6.2m114.2k shares |
| CITADEL ADVISORS LLC | Reduced | $3.0m56.1k shares |
| SIMPLEX TRADING, LLC | Added | $2.6m48.9k shares |
| Shay Capital LLC | New | $2.4m45.0k shares |
| Hunting Hill Global Capital, LLC | Reduced | $1.1m19.8k shares |
| IMC-Chicago, LLC | Reduced | $799.9k14.8k shares |
| D. E. Shaw & Co., Inc. | New | $535.1k9.9k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.9m91.2k shares |
| CITADEL ADVISORS LLC | Added | $3.1m57.4k shares |
| GROUP ONE TRADING LLC | Added | $1.9m34.5k shares |
| PEAK6 LLC | First filing | $1.4m25.2k shares |
| JANE STREET GROUP, LLC | Added | $1.1m20.8k shares |
| SIMPLEX TRADING, LLC | Added | $799.0k14.8k shares |
| IMC-Chicago, LLC | New | $600.0k11.1k shares |
| WOLVERINE TRADING, LLC | Added | $556.9k10.2k shares |
| TUDOR INVESTMENT CORP ET AL | New | $356.7k6.6k shares |
| Walleye Capital LLC | Reduced | $237.8k4.4k 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 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 Q4 2024.
Holders, Q4 2024
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.01% of their portfolio | 2.2m $117.7m | Reduced -62.4k |
| LORD, ABBETT & CO. LLC 0.23% of their portfolio | 1.3m $71.6m | Added +221.0k |
| ACADIAN ASSET MANAGEMENT LLC 0.20% of their portfolio | 1.3m $69.3m | Reduced -48.1k |
| Pertento Partners LLP 6.49% of their portfolio | 1.2m $63.1m | Added +277.5k |
| REINHART PARTNERS, LLC. 2.36% of their portfolio | 1.1m $61.4m | Added +55.4k |
| Invesco Ltd. 0.01% of their portfolio | 1.0m $56.1m | Added +192.6k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 797.2k $43.1m | Added +228.3k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.04% of their portfolio | 763.4k $41.3m | Added +192.6k |
| MORGAN STANLEY 0.00% of their portfolio | 701.0k $37.9m | Reduced -335.5k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 696.3k $37.6m | Added +172.9k |
| Erste Asset Management GmbH 0.44% of their portfolio | 664.0k $36.0m | Unchanged |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.06% of their portfolio | 628.2k $34.0m | Reduced -265.2k |
| MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio | 613.8k $33.2m | Reduced -170.0k |
| Kite Lake Capital Management (UK) LLP 66.02% of their portfolio | 597.4k $32.3m | Added +81.0k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 0.81% of their portfolio | 589.4k $31.9m | Added +95.1k |
| Rubric Capital Management LP 0.58% of their portfolio | 586.5k $31.7m | New |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 0.92% of their portfolio | 506.0k $27.3m | Added +196.9k |
| UBS Group AG 0.01% of their portfolio | 487.5k $26.3m | Added +364.9k |
| Kodai Capital Management LP 1.07% of their portfolio | 481.6k $26.0m | Reduced -184.9k |
| HEARTLAND ADVISORS INC 1.31% of their portfolio | 447.1k $24.2m | Added +79.4k |
| FARALLON CAPITAL MANAGEMENT, L.L.C. 0.12% of their portfolio | 415.0k $22.4m | Reduced -99.0k |
| HERALD INVESTMENT MANAGEMENT Ltd 3.40% of their portfolio | 384.9k $20.8m | Unchanged |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.04% of their portfolio | 377.4k $20.4m | Added +216.9k |
| Think Investments LP 4.16% of their portfolio | 349.4k $18.9m | Unchanged |
| ALPINE ASSOCIATES MANAGEMENT INC. 1.09% of their portfolio | 330.7k $17.9m | Reduced -10.1k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 324.1k $17.5m | Added +14.4k |
| Boston Partners 0.02% of their portfolio | 311.4k $16.8m | Added +100.0k |
| Qube Research & Technologies Ltd 0.03% of their portfolio | 298.1k $16.1m | Reduced -72.5k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.04% of their portfolio | 297.8k $16.1m | Added +50.0k |
| SG Capital Management LLC 1.65% of their portfolio | 277.6k $15.0m | New |
| HAWK RIDGE CAPITAL MANAGEMENT LP 0.69% of their portfolio | 269.6k $14.6m | Reduced -199.1k |
| NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio | 260.9k $14.1m | Reduced -67.1k |
| Robeco Institutional Asset Management B.V. 0.03% of their portfolio | 251.9k $13.6m | Reduced -124.4k |
| Russell Investments Group, Ltd. 0.02% of their portfolio | 251.0k $13.6m | Added +35.5k |
| ODDO BHF ASSET MANAGEMENT SAS 0.59% of their portfolio | 217.5k $11.8m | Unchanged |
| Melqart Asset Management (UK) Ltd 1.56% of their portfolio | 215.0k $11.6m | Reduced -7.3k |
| EASTERLY INVESTMENT PARTNERS LLC 0.87% of their portfolio | 204.9k $11.1m | Reduced -20.9k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 199.0k $10.8m | Reduced -201.0k |
| Balyasny Asset Management L.P. 0.02% of their portfolio | 190.7k $10.3m | Added +153.1k |
| SCHWARTZ INVESTMENT COUNSEL INC 0.37% of their portfolio | 190.0k $10.3m | Unchanged |
| NEUMEIER POMA INVESTMENT COUNSEL LLC 0.95% of their portfolio | 181.7k $9.8m | Reduced -11.7k |
| M&G PLC 0.06% of their portfolio | 181.2k $9.8m | New |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 180.2k $9.7m | Reduced -85.5k |
| Prospect Capital Advisors, LLC 5.60% of their portfolio | 178.3k $9.6m | Reduced -48.0k |
| Clearline Capital LP 1.24% of their portfolio | 173.0k $9.4m | Reduced -15.8k |
| BlackRock, Inc. 0.00% of their portfolio | 172.6k $9.3m | Added +31.7k |
| Polar Asset Management Partners Inc. 0.13% of their portfolio | 162.7k $8.8m | Reduced -17.3k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.40% of their portfolio | 157.9k $8.5m | Reduced -119.4k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.18% of their portfolio | 147.6k $8.0m | Added +6.2k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.01% of their portfolio | 144.8k $7.8m | Reduced -61.7k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 138.6k $7.5m | Reduced -115.8k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 136.6k $7.4m | Added +132.5k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 131.6k $7.1m | Reduced -16.4k |
| Taconic Capital Advisors LP 0.50% of their portfolio | 117.9k $6.4m | Reduced -102.1k |
| Man Group plc 0.02% of their portfolio | 111.9k $6.0m | Reduced -232.2k |
| MANGROVE PARTNERS IM, LLC 0.57% of their portfolio | 95.0k $5.1m | New |
| HARBOR CAPITAL ADVISORS, INC. 0.21% of their portfolio | 91.0k $4.9m | Reduced -37.3k |
| Janney Montgomery Scott LLC 0.01% of their portfolio | 85.3k $4.6m | Added +752 |
| Apis Capital Advisors, LLC 2.88% of their portfolio | 80.0k $4.3m | Added +22.0k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 79.2k $4.3m | Reduced -42.8k |
| Skylands Capital, LLC 0.58% of their portfolio | 76.5k $4.1m | Reduced -18.4k |
| Ramirez Asset Management, Inc. 0.83% of their portfolio | 76.5k $4.1m | Reduced -3.2k |
| Crestline Management, L.P. 0.14% of their portfolio | 73.4k $4.0m | Reduced -4.1k |
| Alberta Investment Management Corp 0.03% of their portfolio | 70.8k $3.8m | Unchanged |
| Beryl Capital Management LLC 0.86% of their portfolio | 70.5k $3.8m | Reduced -30.4k |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 69.6k $3.8m | Added +39.1k |
| Calamos Advisors LLC 0.02% of their portfolio | 68.6k $3.7m | New |
| Trexquant Investment LP 0.04% of their portfolio | 67.0k $3.6m | Reduced -21.9k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 62.1k $3.4m | Added +23.9k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 58.8k $3.2m | Added +3.9k |
| STATE STREET CORP 0.00% of their portfolio | 55.6k $3.0m | Added +1.1k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 52.8k $2.9m | Reduced -2.6k |
| F/m Investments LLC 0.10% of their portfolio | 52.4k $2.8m | Reduced -103.4k |
| Jain Global LLC 0.08% of their portfolio | 51.0k $2.8m | First filing |
| 272 Capital LP 2.59% of their portfolio | 50.6k $2.7m | Reduced -50.7k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio | 49.8k $2.7m | Reduced -47.4k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 48.7k $2.6m | Reduced -67.6k |
| ABN AMRO INVESTMENT SOLUTIONS 0.04% of their portfolio | 40.2k $2.2m | Added +34.2k |
| RENAISSANCE GROUP LLC 0.09% of their portfolio | 38.2k $2.1m | Reduced -1.6k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 37.1k $2.0m | Reduced -10.4k |
| Nishkama Capital, LLC 0.33% of their portfolio | 36.8k $2.0m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 36.2k $2.0m | Added +300 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 36.0k $1.9m | Unchanged |
| LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio | 35.5k $1.9m | Added +12.1k |
| OAK ASSOCIATES LTD /OH/ 0.13% of their portfolio | 34.2k $1.9m | Added +3.4k |
| GABELLI & Co INVESTMENT ADVISERS, INC. 0.30% of their portfolio | 32.3k $1.7m | Added +2.1k |
| Allianz Asset Management GmbH 0.00% of their portfolio | 32.0k $1.7m | Reduced -8.4k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 31.3k $1.7m | Reduced -9 |
| 1492 Capital Management LLC 0.79% of their portfolio | 30.6k $1.7m | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 29.0k $1.6m | Reduced -9.1k |
| Engineers Gate Manager LP 0.03% of their portfolio | 28.5k $1.5m | Added +10.1k |
| GABELLI FUNDS LLC 0.01% of their portfolio | 28.4k $1.5m | Added +1.7k |
| Graham Capital Management, L.P. 0.05% of their portfolio | 27.6k $1.5m | Added +10.6k |
| Keeley-Teton Advisors, LLC 0.16% of their portfolio | 25.3k $1.4m | Reduced -2.0k |
| Employees Retirement System of Texas 0.01% of their portfolio | 23.8k $1.3m | Unchanged |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 23.2k $1.3m | New |
| Cerity Partners LLC 0.00% of their portfolio | 23.1k $1.2m | Reduced -7.0k |
| NAPLES GLOBAL ADVISORS, LLC 0.10% of their portfolio | 20.7k $1.1m | Reduced -360 |
| BOOTHBAY FUND MANAGEMENT, LLC 0.03% of their portfolio | 20.0k $1.1m | Reduced -46.3k |
| TEALWOOD ASSET MANAGEMENT INC 0.42% of their portfolio | 18.8k $1.0m | Added +180 |