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 ($4.2m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $67.59. Options: 13 managers hold calls ($166.8m notional), 16 hold puts ($207.9m).
Trends to Q1 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 202 |
| Q4 2022 | 198 |
| Q1 2023 | 198 |
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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $44.5m | $66.7m | 1.50 |
| Q4 2022 | $58.1m | $172.0m | 2.96 |
| Q1 2023 | $166.8m | $207.9m | 1.25 |
Biggest buyers
| HAWK RIDGE CAPITAL MANAGEMENT LP | New | +665.2k |
| BLUEFIN CAPITAL MANAGEMENT, LLC | New | +647.1k |
| CITIGROUP INC | Added | +488.2k |
| Melqart Asset Management (UK) Ltd | Added | +317.4k |
| Westchester Capital Management, LLC | Added | +231.5k |
| MARSHALL WACE, LLP | Added | +231.3k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +214.8k |
| HAP Trading, LLC | New | +200.8k |
| Balyasny Asset Management L.P. | Added | +149.5k |
| P SCHOENFELD ASSET MANAGEMENT LP | Added | +142.0k |
Biggest sellers
| GOLDMAN SACHS GROUP INC | Reduced | -1.4m |
| Antara Capital LP | Sold out | -949.9k |
| TIG Advisors, LLC | Sold out | -518.6k |
| BAILLIE GIFFORD & CO | Sold out | -414.3k |
| RAMIUS ADVISORS LLC | Reduced | -309.6k |
| BANK OF AMERICA CORP /DE/ | Reduced | -292.8k |
| HBK INVESTMENTS L P | Reduced | -269.8k |
| FARALLON CAPITAL MANAGEMENT, L.L.C. | Reduced | -226.5k |
| Sand Grove Capital Management LLP | Reduced | -196.0k |
| TUDOR INVESTMENT CORP ET AL | Reduced | -195.9k |
Biggest calls
| Antara Capital LP | New | $94.8m1.4m shares |
| Maven Securities LTD | Added | $23.7m361.2k shares |
| HBK INVESTMENTS L P | New | $19.7m300.0k shares |
| P SCHOENFELD ASSET MANAGEMENT LP | New | $6.6m100.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $6.6m100.0k shares |
| GROUP ONE TRADING LLC | Added | $6.5m98.9k shares |
| Hiddenite Capital Partners LP | New | $4.9m75.0k shares |
| Walleye Trading LLC | Added | $2.7m41.4k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.2m17.8k shares |
| Belvedere Trading LLC | Added | $216.2k3.3k shares |
Biggest puts
| Antara Capital LP | Reduced | $73.1m1.1m shares |
| GROUP ONE TRADING LLC | Added | $42.6m650.5k shares |
| CITIGROUP INC | Added | $39.3m600.0k shares |
| Maven Securities LTD | New | $23.6m359.9k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $10.2m155.6k shares |
| SIMPLEX TRADING, LLC | Reduced | $5.0m76.2k shares |
| Walleye Trading LLC | Reduced | $4.5m68.2k shares |
| BLUEFIN CAPITAL MANAGEMENT, LLC | Added | $4.3m738.9k shares |
| HAP Trading, LLC | Added | $1.4m336.0k shares |
| JPMORGAN CHASE & CO | New | $1.0m16.0k 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 2023
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 2023.
Holders, Q1 2023
| Manager | Shares | Change |
|---|---|---|
| MORGAN STANLEY 0.01% of their portfolio | 1.2m $77.7m | Added +66.8k |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 1.82% of their portfolio | 1.2m $76.4m | Added +9.6k |
| MILLENNIUM MANAGEMENT LLC 0.08% of their portfolio | 1.1m $72.6m | Reduced -28.0k |
| Melqart Asset Management (UK) Ltd 4.79% of their portfolio | 979.2k $64.2m | Added +317.4k |
| Sand Grove Capital Management LLP 8.72% of their portfolio | 865.0k $56.7m | Reduced -196.0k |
| FARALLON CAPITAL MANAGEMENT, L.L.C. 0.28% of their portfolio | 705.0k $46.2m | Reduced -226.5k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.10% of their portfolio | 682.9k $44.7m | Reduced -113.7k |
| HAWK RIDGE CAPITAL MANAGEMENT LP 2.47% of their portfolio | 665.2k $43.6m | New |
| STATE STREET CORP 0.00% of their portfolio | 664.1k $43.6m | Added +17.9k |
| BLUEFIN CAPITAL MANAGEMENT, LLC 5.97% of their portfolio | 647.1k $42.4m | New |
| CITIGROUP INC 0.06% of their portfolio | 638.2k $41.8m | Added +488.2k |
| MARSHALL WACE, LLP 0.10% of their portfolio | 632.5k $41.4m | Added +231.3k |
| Grantham, Mayo, Van Otterloo & Co. LLC 0.21% of their portfolio | 624.8k $40.9m | Added +1.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 561.9k $36.8m | Reduced -292.8k |
| Balyasny Asset Management L.P. 0.11% of their portfolio | 522.6k $34.2m | Added +149.5k |
| Erste Asset Management GmbH 0.63% of their portfolio | 504.0k $33.0m | Added +4.0k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 1.03% of their portfolio | 481.3k $31.5m | Reduced -19.0k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 451.3k $29.6m | Reduced -1.4m |
| AQR Arbitrage LLC 0.90% of their portfolio | 446.2k $29.2m | Reduced -42.7k |
| ALPINE ASSOCIATES MANAGEMENT INC. 1.40% of their portfolio | 399.5k $26.2m | Reduced -600 |
| HERALD INVESTMENT MANAGEMENT Ltd 5.60% of their portfolio | 384.9k $25.2m | Unchanged |
| WATER ISLAND CAPITAL LLC 1.86% of their portfolio | 351.0k $23.0m | Unchanged |
| LAZARD ASSET MANAGEMENT LLC 0.03% of their portfolio | 345.3k $22.6m | Added +12.3k |
| Segantii Capital Management Ltd 0.91% of their portfolio | 310.0k $20.3m | Reduced -100.0k |
| Westchester Capital Management, LLC 0.63% of their portfolio | 304.1k $19.9m | Added +231.5k |
| RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio | 288.7k $18.9m | Added +214.8k |
| M&G INVESTMENT MANAGEMENT LTD 0.13% of their portfolio | 286.7k $18.9m | Added +9.9k |
| HBK INVESTMENTS L P 0.62% of their portfolio | 260.2k $17.0m | Reduced -269.8k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.05% of their portfolio | 258.7k $16.9m | Added +3.2k |
| P SCHOENFELD ASSET MANAGEMENT LP 1.57% of their portfolio | 227.0k $14.9m | Added +142.0k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 218.8k $14.3m | Reduced -19.1k |
| UBS Group AG 0.01% of their portfolio | 217.1k $14.2m | Added +22.0k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 212.7k $13.9m | Added +118.5k |
| Prospect Capital Advisors, LLC 6.21% of their portfolio | 209.6k $13.7m | Added +17.6k |
| HAP Trading, LLC 3.19% of their portfolio | 200.8k $13.2m | New |
| ExodusPoint Capital Management, LP 0.15% of their portfolio | 195.8k $12.8m | Added +95.0k |
| Berry Street Capital Management LLP 4.31% of their portfolio | 187.5k $12.3m | Added +100.0k |
| Qube Research & Technologies Ltd 0.07% of their portfolio | 186.0k $12.2m | Added +66.7k |
| Fort Baker Capital Management LP 2.52% of their portfolio | 178.2k $11.7m | Added +102.7k |
| Bahl & Gaynor LLC 0.06% of their portfolio | 176.3k $11.5m | Added +22.0k |
| GROUP ONE TRADING LLC 0.49% of their portfolio | 158.5k $10.4m | Added +114.7k |
| EASTERLY INVESTMENT PARTNERS LLC 0.87% of their portfolio | 150.3k $9.8m | Reduced -3.1k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 144.6k $9.5m | Added +6.0k |
| 272 Capital LP 3.86% of their portfolio | 142.3k $9.3m | Added +100.8k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.27% of their portfolio | 140.4k $9.2m | Reduced -14.6k |
| FMR LLC 0.00% of their portfolio | 138.4k $9.1m | Added +133.2k |
| TWO SIGMA ADVISERS, LP 0.02% of their portfolio | 129.8k $8.5m | Added +70.8k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 121.0k $7.9m | Added +116.0k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.23% of their portfolio | 119.3k $7.8m | Added +3.8k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.20% of their portfolio | 115.7k $7.6m | Added +3.8k |
| ACADIAN ASSET MANAGEMENT LLC 0.03% of their portfolio | 114.4k $7.5m | Reduced -32.8k |
| DLD Asset Management, LP 0.73% of their portfolio | 111.0k $7.3m | Reduced -14.0k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.40% of their portfolio | 107.4k $7.0m | Reduced -8.4k |
| Verition Fund Management LLC 0.11% of their portfolio | 103.3k $6.8m | Added +36.4k |
| Weiss Asset Management LP 0.53% of their portfolio | 102.7k $6.7m | Added +18.6k |
| HEARTLAND ADVISORS INC 0.40% of their portfolio | 100.0k $6.6m | New |
| Apis Capital Advisors, LLC 6.00% of their portfolio | 86.0k $5.6m | Added +900 |
| THOMAS WHITE INTERNATIONAL LTD 1.11% of their portfolio | 80.4k $5.3m | Reduced -2.8k |
| Boussard & Gavaudan Investment Management LLP 0.49% of their portfolio | 79.1k $5.2m | New |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 76.1k $5.0m | Added +36.0k |
| LMR Partners LLP 0.09% of their portfolio | 74.5k $4.9m | Reduced -17.5k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.03% of their portfolio | 73.1k $4.8m | Unchanged |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 72.0k $4.7m | Reduced -1.2k |
| SG Americas Securities, LLC 0.06% of their portfolio | 71.0k $4.7m | Reduced -72.8k |
| Brookfield Corp /ON/ 0.02% of their portfolio | 70.0k $4.6m | Reduced -15.6k |
| NAPLES GLOBAL ADVISORS, LLC 0.56% of their portfolio | 68.8k $4.5m | Added +1.6k |
| Janney Montgomery Scott LLC 0.02% of their portfolio | 67.4k $4.4m | Added +1.1k |
| ABN AMRO INVESTMENT SOLUTIONS 0.08% of their portfolio | 62.5k $4.1m | First filing |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.28% of their portfolio | 62.3k $4.1m | Reduced -11.2k |
| NATIXIS 0.04% of their portfolio | 62.1k $4.1m | Reduced -158.8k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 60.5k $4.0m | Reduced -895 |
| Nokomis Capital, L.L.C. 1.60% of their portfolio | 60.1k $3.9m | Unchanged |
| Man Group plc 0.01% of their portfolio | 59.1k $3.9m | New |
| THOMPSON SIEGEL & WALMSLEY LLC 0.06% of their portfolio | 54.0k $3.5m | New |
| MASO CAPITAL PARTNERS Ltd 2.25% of their portfolio | 51.8k $3.4m | Added +15.0k |
| Virtus Family Office LLC 6.78% of their portfolio | 50.7k $3.3m | Added +2.2k |
| Perpetual Ltd 0.03% of their portfolio | 50.5k $3.3m | First filing |
| Alpine Global Management, LLC 1.27% of their portfolio | 50.0k $3.3m | Reduced -25.0k |
| Force Hill Capital Management LP 0.80% of their portfolio | 46.9k $3.1m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 46.8k $3.1m | Added +2.0k |
| RAMIUS ADVISORS LLC 3.21% of their portfolio | 44.5k $2.9m | Reduced -309.6k |
| Kapitalo Investimentos Ltda 0.89% of their portfolio | 41.2k $2.7m | New |
| Hodges Capital Management Inc. 0.38% of their portfolio | 41.1k $4.7m | Reduced -21.7k |
| Ovata Capital Management Ltd 1.15% of their portfolio | 41.1k $2.7m | Reduced -53.1k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 40.2k $2.6m | Reduced -1.7k |
| Legal & General Group Plc 0.00% of their portfolio | 37.3k $2.4m | Added +649 |
| Robeco Institutional Asset Management B.V. 0.01% of their portfolio | 37.1k $2.4m | Unchanged |
| OAK ASSOCIATES LTD /OH/ 0.20% of their portfolio | 36.5k $2.4m | Unchanged |
| J.P. Morgan Private Wealth Advisors LLC 0.00% of their portfolio | 35.6k $2.3m | Reduced -4.0k |
| Handelsbanken Fonder AB 0.01% of their portfolio | 35.5k $2.3m | Added +1.6k |
| Cerity Partners LLC 0.01% of their portfolio | 35.4k $2.3m | Reduced -705 |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 34.1k $2.2m | Added +281 |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 34.0k $2.2m | Added +13.8k |
| Aristides Capital LLC 1.39% of their portfolio | 33.7k $2.2m | Unchanged |
| Millrace Asset Group, Inc. 2.49% of their portfolio | 32.6k $2.1m | Added +376 |
| Calamos Advisors LLC 0.01% of their portfolio | 32.1k $2.1m | Added +19.1k |
| Squarepoint Ops LLC 0.01% of their portfolio | 32.0k $2.1m | New |
| Cullen Capital Management, LLC 0.02% of their portfolio | 31.7k $2.1m | Added +2.4k |
| Trium Capital LLP 0.86% of their portfolio | 31.2k $2.0m | Added +12.7k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 30.6k $2.0m | Added +2.0k |