Silicon Motion Technology Corporation - 예탁증서(보통주)
US ˙ NasdaqGS ˙ US82706C1080

SecuritySIMO / Silicon Motion Technology Corporation - Depositary Receipt (Common Stock)
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership276,600 shares
Latest Disclosed Value $ 31,059,415
Marshall Wace, Llp reports 108.52% increase in ownership of SIMO / Silicon Motion Technology Corporation - Depositary Receipt (Common Stock)

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 276,600 shares of Silicon Motion Technology Corporation - Depositary Receipt (Common Stock) (US:SIMO) valued at $31,059,414 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 132,651 shares of Silicon Motion Technology Corporation - Depositary Receipt (Common Stock). This represents a change in shares of 108.52% during the quarter. The current value of the position is $71,556,420 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F SILICON MOTI-ADR ADR 82706C108 276,600 143,949 108.52 31,059 152.59 0.0147
2026-02-13 2025-12-31 13F SILICON MOTI-ADR ADR 82706C108 132,651 77,246 139.42 12,297 134.12 0.0112
2025-11-13 2025-09-30 13F SILICON MOTI-ADR ADR 82706C108 55,405 12,944 30.48 5,253 64.59 0.0053
2025-08-13 2025-06-30 13F SILICON MOTI-ADR ADR 82706C108 42,461 -2,359 -5.26 3,192 40.82 0.0036
2025-05-15 2025-03-31 13F SILICON MOTI-ADR ADR 82706C108 44,820 -3,847 -7.90 2,266 -13.84 0.0029
2025-02-13 2024-12-31 13F SILICON MOTI-ADR ADR 82706C108 48,667 -67,627 -58.15 2,630 -62.76 0.0032
2024-11-14 2024-09-30 13F SILICON MOTI-ADR ADR 82706C108 116,294 25,977 28.76 7,064 -3.43 0.0086
2024-08-14 2024-06-30 13F SILICON MOTI-ADR ADR 82706C108 90,317 -15,252 -14.45 7,315 -9.95 0.0098
2024-05-15 2024-03-31 13F SILICON MOTI-ADR ADR 82706C108 105,569 -204,462 -65.95 8,122 -57.24 0.0124
2024-02-14 2023-12-31 13F SILICON MOTI-ADR ADR 82706C108 310,031 -287,230 -48.09 18,996 -37.94 0.0322
2023-11-14 2023-09-30 13F SILICON MOTI-ADR ADR 82706C108 597,261 184,178 44.59 30,610 3.12 0.0620
2023-08-14 2023-06-30 13F SILICON MOTI-ADR ADR 82706C108 413,083 -219,438 -34.69 29,684 -28.37 0.0580
2023-05-15 2023-03-31 13F SILICON MOTI-ADR ADR 82706C108 632,521 231,332 57.66 41,443 58.95 0.0881
2023-02-14 2022-12-31 13F SILICON MOTI-ADR ADR 82706C108 401,189 18,781 4.91 26,073 4.59 0.0586
2022-11-14 2022-09-30 13F SILICON MOTI-ADR ADR 82706C108 382,408 318,598 499.29 24,929 366.66 0.0546
2022-08-15 2022-06-30 13F SILICON MOTI-ADR ADR 82706C108 63,810 -525,840 -89.18 5,342 -86.44 0.0110
2022-05-16 2022-03-31 13F SILICON MOTI-ADR ADR 82706C108 589,650 330,608 127.63 39,401 60.06 0.0746
2022-02-14 2021-12-31 13F SILICON MOTI-ADR ADR 82706C108 259,042 259,042 24,616 0.0455
2021-08-13 2021-06-30 13F SILICON MOTI-ADR ADR 82706C108 0 -150,411 -100.00 0 -100.00
2021-05-17 2021-03-31 13F SILICON MOTI-ADR ADR 82706C108 150,411 -60,558 -28.70 8,933 -12.06 0.0410
2021-02-16 2020-12-31 13F SILICON MOTI-ADR ADR 82706C108 210,969 18,381 9.54 10,158 39.61 0.0550
2020-11-16 2020-09-30 13F SILICON MOTI-ADR ADR 82706C108 192,588 -22,165 -10.32 7,276 -30.53 0.0466
2020-08-13 2020-06-30 13F SILICON MOTI-ADR ADR 82706C108 214,753 192,126 849.10 10,474 1,161.93 0.0734
2020-05-15 2020-03-31 13F SILICON MOTI-ADR ADR 82706C108 22,627 8,415 59.21 830 15.12 0.0083
2020-02-14 2019-12-31 13F SILICON MOTI-ADR ADR 82706C108 14,212 -104,714 -88.05 721 -82.85 0.0050
2019-11-14 2019-09-30 13F SILICON MOTI-ADR ADR 82706C108 118,926 101,753 592.52 4,204 451.71 0.0331
2019-08-14 2019-06-30 13F SILICON MOTI-ADR ADR 82706C108 17,173 -80,995 -82.51 762 -80.42 0.0063
2019-05-29 2019-03-31 13F/A-1 SILICON MOTI-ADR ADR 82706C108 98,168 -43,472 -30.69 3,891 -20.38 0.0366
2019-05-14 2019-03-31 13F SILICON MOTI-ADR ADR 82706C108 98,168 -43,472 3,891
2019-02-14 2018-12-31 13F SILICON MOTI-ADR ADR 82706C108 141,640 141,640 44.28 4,887 25.60 0.0499
2017-05-12 2017-03-31 13F SILICON MOTI-ADR ADR 82706C108 0 -287,957 -100.00 0 -100.00
2017-02-10 2016-12-31 13F SILICON MOTI-ADR ADR 82706C108 287,957 287,957 12,232 0.0804
2016-05-13 2016-03-31 13F SILICON MOTI-ADR ADR 82706C108 0 -115,747 -100.00 0 -100.00
2016-02-10 2015-12-31 13F SILICON MOTI-ADR ADR 82706C108 115,747 -172,340 -59.82 3,630 -53.86 0.0341
2015-11-12 2015-09-30 13F SILICON MOTI-ADR ADR 82706C108 288,087 288,087 148.89 7,868 116.75 0.0967
2015-08-14 2015-06-30 13F SILICON MOTI-ADR ADR 82706C108 0 -35,990 -100.00 0 -100.00
2015-05-11 2015-03-31 13F SILICON MOTI-ADR ADR 82706C108 35,990 15,156 72.75 967 96.15 0.0126
2015-02-17 2014-12-31 13F SILICON MOTI-ADR ADR 82706C108 20,834 20,834 -42.11 493 -49.02 0.0065
2014-11-13 2014-09-30 13F SILICON MOTI-ADR ADR 82706C108 0 -124,302 -100.00 0 -100.00
2014-08-14 2014-06-30 13F SILICON MOTI-ADR ADR 82706C108 124,302 -51,923 -29.46 2,539 -14.14 0.0374
2014-05-14 2014-03-31 13F SILICON MOTI-ADR ADR 82706C108 176,225 176,225 2,957 0.0538
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.