Vault-13

SILICON MOTION TECHNOLOGY CO SIMO

SPONSORED ADR · ADR · CUSIP 82706C108 · ISIN US82706C1080

American-Taiwanese electronics technology company

242 institutional holders +21 vs Q3 2025
27,134,43127.1m shares reported held*
$2.5bnreported value*
37 new 84 added 81 reduced 20 sold out net sold ≈ $12.1m (-138.6k shares)

* 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 ($22.6m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $92.83. Options: 10 managers hold calls ($24.9m notional), 8 hold puts ($14.3m).

Trends to Q4 2025

Institutional holders

Managers reporting a position, each quarter

0100200300Q3 22: 202Q4 22: 198Q1 23: 198Q2 23: 203Q3 23: 195Q4 23: 206Q1 24: 213Q2 24: 236Q3 24: 204Q4 24: 204Q1 25: 192Q2 25: 214Q3 25: 221Q4 25: 242242Q3 22Q2 23Q1 24Q4 24Q4 25
Numbers
QuarterHolders
Q3 2022202
Q4 2022198
Q1 2023198
Q2 2023203
Q3 2023195
Q4 2023206
Q1 2024213
Q2 2024236
Q3 2024204
Q4 2024204
Q1 2025192
Q2 2025214
Q3 2025221
Q4 2025242

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
2000200Q1 24: 117 bought or addedQ1 24: 103 cut or sold outQ2 24: 136 bought or addedQ2 24: 86 cut or sold outQ2 24Q3 24: 96 bought or addedQ3 24: 125 cut or sold outQ4 24: 98 bought or addedQ4 24: 107 cut or sold outQ4 24Q1 25: 104 bought or addedQ1 25: 94 cut or sold outQ2 25: 113 bought or addedQ2 25: 100 cut or sold outQ2 25Q3 25: 109 bought or addedQ3 25: 109 cut or sold outQ4 25: 121 bought or addedQ4 25: 101 cut or sold outQ4 25
Numbers
QuarterBought or addedCut or sold out
Q1 2024117103
Q2 202413686
Q3 202496125
Q4 202498107
Q1 202510494
Q2 2025113100
Q3 2025109109
Q4 2025121101

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$20m$40m$60mQ1 25 calls: $23.5mQ1 25 puts: $9.4mQ1 25P/C 0.40Q2 25 calls: $36.1mQ2 25 puts: $22.9mQ2 25P/C 0.64Q3 25 calls: $58.7mQ3 25 puts: $54.4mQ3 25P/C 0.93Q4 25 calls: $24.9mQ4 25 puts: $14.3mQ4 25P/C 0.57
Numbers
QuarterCallsPutsP/C
Q1 2025$23.5m$9.4m0.40
Q2 2025$36.1m$22.9m0.64
Q3 2025$58.7m$54.4m0.93
Q4 2025$24.9m$14.3m0.57

Biggest buyers

Wolf Hill Capital Management, LP New +581,370+581.4k
HAWK RIDGE CAPITAL MANAGEMENT LP Added +415,000+415.0k
Man Group plc Added +339,663+339.7k
TWO SIGMA INVESTMENTS, LP Added +302,476+302.5k
Robeco Institutional Asset Management B.V. Added +181,206+181.2k
CRAMER ROSENTHAL MCGLYNN LLC New +143,604+143.6k
HIGHLAND PEAK CAPITAL, LLC Added +120,739+120.7k
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Added +114,164+114.2k
VOLORIDGE INVESTMENT MANAGEMENT, LLC New +112,458+112.5k
TWO SIGMA ADVISERS, LP Added +101,500+101.5k

Biggest sellers

Point72 Asset Management, L.P. Sold out -700,048-700.0k
Erste Asset Management GmbH Reduced -660,000-660.0k
FRONTIER CAPITAL MANAGEMENT CO LLC Reduced -531,623-531.6k
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Reduced -379,939-379.9k
Invesco Ltd. Reduced -273,805-273.8k
ALPINE ASSOCIATES MANAGEMENT INC. Reduced -167,474-167.5k
Boston Partners Reduced -155,615-155.6k
MANUFACTURERS LIFE INSURANCE COMPANY, THE Reduced -140,334-140.3k
LORD, ABBETT & CO. LLC Reduced -139,707-139.7k
Pertento Partners LLP Reduced -138,998-139.0k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $9.5m102.3k shares
JANE STREET GROUP, LLC Reduced $5.4m58.1k shares
CITADEL ADVISORS LLC Reduced $3.0m32.7k shares
GROUP ONE TRADING LLC Reduced $2.9m31.4k shares
IMC-Chicago, LLC Reduced $1.7m18.8k shares
CastleKnight Management LP New $1.3m13.7k shares
TWO SIGMA INVESTMENTS, LP New $435.7k4.7k shares
Walleye Trading LLC Reduced $268.8k2.9k shares
TUDOR INVESTMENT CORP ET AL New $231.8k2.5k shares
Walleye Capital LLC New $92.7k1.0k shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $6.9m74.3k shares
JANE STREET GROUP, LLC Reduced $2.7m29.6k shares
CITADEL ADVISORS LLC Added $2.6m27.7k shares
GROUP ONE TRADING LLC Reduced $1.4m15.3k shares
TWO SIGMA INVESTMENTS, LP New $259.6k2.8k shares
Walleye Trading LLC Reduced $148.3k1.6k shares
Walleye Capital LLC New $148.3k1.6k shares
FIFTH LANE CAPITAL, LP New $92.7k1.0k 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.

HolderStakeChangeShares Last filed
FMR LLC 13G · institution -3.3 pts · filed 2026-08-06 6.7% -3.3 pts 9.1m 2026-08-06

Insider purchases and sales in Q4 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 Q4 2025.

Holders, Q4 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 FMR LLC 0.02% of their portfolio BOSTON, MA 3,398,3673.4m $315.0m $315.0m 0.02% Added +8 +8
2 REINHART PARTNERS, LLC. 4.37% of their portfolio MEQUON, WI 1,573,3551.6m $145.9m $145.9m 4.37% Added +72.4k +72,421
3 ACADIAN ASSET MANAGEMENT LLC 0.19% of their portfolio Boston, MA 1,279,0871.3m $118.5m $118.5m 0.19% Reduced -22.6k -22,579
4 Pertento Partners LLP 11.73% of their portfolio LONDON, X0 1,151,4111.2m $106.7m $106.7m 11.73% Reduced -139.0k -138,998
5 LORD, ABBETT & CO. LLC 0.28% of their portfolio JERSEY CITY, NJ 994,977995.0k $92.2m $92.2m 0.28% Reduced -139.7k -139,707
6 HAWK RIDGE CAPITAL MANAGEMENT LP 3.37% of their portfolio LOS ANGELES, CA 787,747787.7k $73.0m $73.0m 3.37% Added +415.0k +415,000
7 LAZARD ASSET MANAGEMENT LLC 0.12% of their portfolio NEW YORK, NY 758,578758.6k $70.3m $70.3m 0.12% Reduced -25.1k -25,085
8 WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio Boston, MA 696,999697.0k $64.6m $64.6m 0.01% Added +1.0k +1,043
9 Invesco Ltd. 0.01% of their portfolio ATLANTA, GA 632,105632.1k $58.6m $58.6m 0.01% Reduced -273.8k -273,805
10 Robeco Institutional Asset Management B.V. 0.08% of their portfolio ROTTERDAM, P7 623,953624.0k $57.8m $57.8m 0.08% Added +181.2k +181,206
11 SYSTEMATIC FINANCIAL MANAGEMENT LP 1.27% of their portfolio TEANECK, NJ 582,826582.8k $54.0m $54.0m 1.27% Reduced -5.5k -5,491
12 Wolf Hill Capital Management, LP 6.28% of their portfolio GREENWICH, CT 581,370581.4k $53.9m $53.9m 6.28% New
13 SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 1.39% of their portfolio Boston, MA 534,932534.9k $49.6m $49.6m 1.39% Reduced -23.1k -23,073
14 FRONTIER CAPITAL MANAGEMENT CO LLC 0.50% of their portfolio Boston, MA 511,471511.5k $47.4m $47.4m 0.50% Reduced -531.6k -531,623
15 HIGHLAND PEAK CAPITAL, LLC 17.75% of their portfolio OLD GREENWICH, CT 496,624496.6k $46.0m $46.0m 17.75% Added +120.7k +120,739
16 NEUMEIER POMA INVESTMENT COUNSEL LLC 3.69% of their portfolio CARMEL, CA 481,818481.8k $44.7m $44.7m 3.69% Added +3.4k +3,355
17 Ophir Asset Management Pty Ltd 4.86% of their portfolio SYDNEY, C3 467,564467.6k $43.3m $43.3m 4.86% Reduced -37.9k -37,898
18 Kite Lake Capital Management (UK) LLP 82.75% of their portfolio LONDON, X0 456,271456.3k $42.3m $42.3m 82.75% Added +91.3k +91,320
19 HERALD INVESTMENT MANAGEMENT Ltd 4.66% of their portfolio LONDON, X0 384,906384.9k $35.6m $35.6m 4.66% Unchanged
20 Boston Partners 0.04% of their portfolio BOSTON, MA 383,801383.8k $35.6m $35.6m 0.04% Reduced -155.6k -155,615
21 Man Group plc 0.07% of their portfolio LONDON, X0 381,048381.0k $35.3m $35.3m 0.07% Added +339.7k +339,663
22 TWO SIGMA INVESTMENTS, LP 0.05% of their portfolio NEW YORK, NY 379,837379.8k $35.2m $35.2m 0.05% Added +302.5k +302,476
23 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.05% of their portfolio Boston, MA 371,662371.7k $34.5m $34.5m 0.05% Reduced -74.5k -74,504
24 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.03% of their portfolio Toronto, A6 364,800364.8k $33.8m $33.8m 0.03% Reduced -140.3k -140,334
25 UBS Group AG 0.01% of their portfolio ZURICH, V8 351,541351.5k $32.6m $32.6m 0.01% Added +98.5k +98,548
26 Driehaus Capital Management LLC 0.20% of their portfolio Chicago, IL 319,624319.6k $29.6m $29.6m 0.20% Reduced -11.3k -11,284
27 Think Investments LP 3.43% of their portfolio San Francisco, CA 289,300289.3k $26.8m $26.8m 3.43% Unchanged
28 HEARTLAND ADVISORS INC 1.36% of their portfolio MILWAUKEE, WI 272,398272.4k $25.3m $25.3m 1.36% Reduced -83.4k -83,372
29 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 264,858264.9k $24.6m $24.6m 0.00% Added +86.7k +86,705
30 OBERWEIS ASSET MANAGEMENT INC/ 0.80% of their portfolio LISLE, IL 236,300236.3k $21.9m $21.9m 0.80% Added +5.7k +5,700
31 Granahan Investment Management, LLC 0.91% of their portfolio WALTHAM, MA 229,129229.1k $21.2m $21.2m 0.91% Added +21.4k +21,371
32 SCHWARTZ INVESTMENT COUNSEL INC 0.71% of their portfolio PLYMOUTH, MI 220,000220.0k $20.4m $20.4m 0.71% Unchanged
33 Apis Capital Advisors, LLC 3.46% of their portfolio New York, NY 214,080214.1k $19.8m $19.8m 3.46% Reduced -71.9k -71,920
34 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio Boston, MA 206,716206.7k $19.2m $19.2m 0.01% Reduced -379.9k -379,939
35 M&G PLC 0.10% of their portfolio London, X0 202,799202.8k $18.9m $18.9m 0.10% Added +21.8k +21,755
36 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio BOSTON, MA 200,476200.5k $18.6m $18.6m 0.01% Added +114.2k +114,164
37 Russell Investments Group, Ltd. 0.02% of their portfolio Seattle, WA 198,737198.7k $18.3m $18.3m 0.02% Reduced -46.7k -46,663
38 ODDO BHF ASSET MANAGEMENT SAS 0.67% of their portfolio PARIS, I0 192,500192.5k $17.8m $17.8m 0.67% Reduced -25.0k -25,000
39 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 183,417183.4k $17.0m $17.0m 0.00% Added +2.4k +2,425
40 First Eagle Investment Management, LLC 0.03% of their portfolio NEW YORK, NY 153,519153.5k $14.2m $14.2m 0.03% Added +3.0k +3,032
41 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 147,030147.0k $13.6m $13.6m 0.01% Reduced -66.2k -66,158
42 CRAMER ROSENTHAL MCGLYNN LLC 0.86% of their portfolio STAMFORD, CT 143,604143.6k $13.3m $13.3m 0.86% New
43 Balyasny Asset Management L.P. 0.02% of their portfolio Chicago, IL 142,561142.6k $13.2m $13.2m 0.02% Added +15.3k +15,254
44 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 133,056133.1k $12.3m $12.3m 0.01% Added +60.3k +60,305
45 Clearline Capital LP 0.93% of their portfolio NEW YORK, NY 132,911132.9k $12.3m $12.3m 0.93% Reduced -36.8k -36,766
46 MARSHALL WACE, LLP 0.01% of their portfolio LONDON, X0 132,651132.7k $12.3m $12.3m 0.01% Added +77.2k +77,246
47 SORA INVESTORS LLC 1.02% of their portfolio BRYN MAWR, PA 128,221128.2k $11.9m $11.9m 1.02% Added +56.7k +56,687
48 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 125,464125.5k $11.6m $11.6m 0.00% Reduced -11.5k -11,471
49 TWO SIGMA ADVISERS, LP 0.02% of their portfolio NEW YORK, NY 124,681124.7k $11.6m $11.6m 0.02% Added +101.5k +101,500
50 EASTERLY INVESTMENT PARTNERS LLC 0.70% of their portfolio BEVERLY, MA 123,807123.8k $11.5m $11.5m 0.70% Reduced -218 -218
51 VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.04% of their portfolio JUPITER, FL 112,458112.5k $10.4m $10.4m 0.04% New
52 NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.02% of their portfolio PHILADELPHIA, PA 109,060109.1k $10.1m $10.1m 0.02% First filing
53 ABN AMRO INVESTMENT SOLUTIONS 0.15% of their portfolio PARIS CEDEX 008, I0 106,851106.9k $9.9m $9.9m 0.15% Added +65.7k +65,670
54 KNIGHTSBRIDGE ASSET MANAGEMENT, LLC 1.53% of their portfolio NEWPORT BEACH, CA 102,729102.7k $9.5m $9.5m 1.53% Added +1.6k +1,624
55 D. E. Shaw & Co., Inc. 0.01% of their portfolio New York, NY 102,038102.0k $9.5m $9.5m 0.01% Added +23.5k +23,470
56 Melqart Asset Management (UK) Ltd 0.91% of their portfolio London, X0 98,41798.4k $9.1m $9.1m 0.91% Reduced -7.8k -7,754
57 SEI INVESTMENTS CO 0.01% of their portfolio OAKS, PA 95,39695.4k $8.8m $8.8m 0.01% Added +34.2k +34,177
58 Qube Research & Technologies Ltd 0.01% of their portfolio LONDON, X0 95,38995.4k $8.8m $8.8m 0.01% New
59 ROYCE & ASSOCIATES LP 0.09% of their portfolio New York, NY 92,54092.5k $8.6m $8.6m 0.09% Added +27.0k +27,040
60 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 91,04091.0k $8.4m $8.4m 0.00% Added +10.8k +10,816
61 SG Capital Management LLC 0.92% of their portfolio CHICAGO, IL 90,41190.4k $8.4m $8.4m 0.92% New
62 Janney Montgomery Scott LLC 0.02% of their portfolio PHILADELPHIA, PA 88,77588.8k $8.2m $8.2m 0.02% Added +146 +146
63 Prospect Capital Advisors, LLC 4.22% of their portfolio Sausalito, CA 88,35088.3k $8.2m $8.2m 4.22% Unchanged
64 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 88,01688.0k $8.2m $8.2m 0.00% Reduced -21.9k -21,935
65 Capitolis Liquid Global Markets LLC 0.05% of their portfolio NEW YORK, NY 83,90083.9k $7.8m $7.8m 0.05% New
66 CastleKnight Management LP 0.43% of their portfolio New York, NY 82,23682.2k $7.6m $7.6m 0.43% New
67 Strategic Wealth Partners, Ltd. 0.51% of their portfolio INDEPENDENCE, OH 80,92880.9k $7.5m $7.5m 0.51% Added +79.5k +79,470
68 ALPINE ASSOCIATES MANAGEMENT INC. 0.50% of their portfolio PALM BEACH, FL 79,97680.0k $7.4m $7.4m 0.50% Reduced -167.5k -167,474
69 JANE STREET GROUP, LLC 0.01% of their portfolio NEW YORK, NY 79,39079.4k $7.4m $7.4m 0.01% New
70 Susquehanna Portfolio Strategies, LLC 0.11% of their portfolio Bala Cynwyd, PA 77,32277.3k $7.2m $7.2m 0.11% Unchanged
71 OVERSEA-CHINESE BANKING Corp Ltd 0.19% of their portfolio SINGAPORE, U0 75,70775.7k $7.0m $7.0m 0.19% New
72 Walleye Capital LLC 0.04% of their portfolio NEW YORK, NY 70,74370.7k $6.6m $6.6m 0.04% New
73 BlackRock, Inc. 0.00% of their portfolio New York, NY 70,19070.2k $6.5m $6.5m 0.00% Reduced -8.7k -8,690
74 Concentric Capital Strategies, LP 0.33% of their portfolio Stamford, CT 69,04469.0k $6.4m $6.4m 0.33% Reduced -29.9k -29,851
75 HARBOR CAPITAL ADVISORS, INC. 0.49% of their portfolio CHICAGO, IL 68,55668.6k $6.4m $6.4m 0.49% Added +1.3k +1,294
76 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 67,90067.9k $6.3m $6.3m 0.00% New
77 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 66,72166.7k $6.2m $6.2m 0.00% Added +1.0k +1,024
78 SummitTX Capital, L.P. 0.18% of their portfolio FORT WORTH, TX 64,06964.1k $5.9m $5.9m 0.18% Reduced -34.0k -33,998
79 BOOTHBAY FUND MANAGEMENT, LLC 0.15% of their portfolio NEW YORK, NY 63,08163.1k $5.8m $5.8m 0.15% Added +14.5k +14,482
80 Jain Global LLC 0.06% of their portfolio NEW YORK, NY 61,78961.8k $5.7m $5.7m 0.06% Added +35.8k +35,782
81 OSTERWEIS CAPITAL MANAGEMENT INC 0.22% of their portfolio SAN FRANCISCO, CA 56,33556.3k $5.2m $5.2m 0.22% Added +18.4k +18,375
82 Skylands Capital, LLC 0.67% of their portfolio Milwaukee, WI 53,21953.2k $4.9m $4.9m 0.67% Added +14.6k +14,625
83 F/m Investments LLC 0.17% of their portfolio WASHINGTON, DC 49,01049.0k $4.5m $4.5m 0.17% Reduced -1.3k -1,304
84 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 46,92746.9k $4.3m $4.3m 0.00% Reduced -6.7k -6,732
85 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 43,90143.9k $4.1m $4.1m 0.00% Added +2.5k +2,476
86 FIRST TRUST ADVISORS LP 0.00% of their portfolio Wheaton, IL 41,71941.7k $3.9m $3.9m 0.00% Reduced -2.2k -2,242
87 1492 Capital Management LLC 1.48% of their portfolio MILWAUKEE, WI 41,69641.7k $3.9m $3.9m 1.48% Added +1.3k +1,330
88 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio COLUMBUS, OH 41,15241.2k $3.8m $3.8m 0.01% Unchanged
89 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 38,96339.0k $3.6m $3.6m 0.00% New
90 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 37,96638.0k $3.5m $3.5m 0.00% Reduced -2.4k -2,435
91 SCHRODER INVESTMENT MANAGEMENT GROUP 0.00% of their portfolio London, X0 37,72037.7k $3.4m $3.4m 0.00% Added +31.8k +31,843
92 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 36,73436.7k $3.4m $3.4m 0.00% Reduced -12.5k -12,506
93 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 36,01536.0k $3.3m $3.3m 0.00% Unchanged
94 Heights Point Management, LP 2.75% of their portfolio NEW YORK, NY 34,77034.8k $3.2m $3.2m 2.75% First filing
95 OAK ASSOCIATES LTD /OH/ 0.18% of their portfolio AKRON, OH 32,29432.3k $3.0m $3.0m 0.18% Reduced -590 -590
96 XTX Topco Ltd 0.08% of their portfolio LONDON, X0 31,85531.9k $3.0m $3.0m 0.08% New
97 Ramirez Asset Management, Inc. 0.39% of their portfolio NEW YORK, NY 31,60431.6k $2.9m $2.9m 0.39% Reduced -1.7k -1,659
98 VAN ECK ASSOCIATES CORP 0.00% of their portfolio NEW YORK, NY 31,18031.2k $2.9m $2.9m 0.00% Reduced -806 -806
99 Tidal Investments LLC 0.01% of their portfolio Milwaukee, WI 28,11828.1k $2.6m $2.6m 0.01% Added +6.9k +6,868
100 Vident Advisory, LLC 0.02% of their portfolio Alpharetta, GA 26,45226.5k $2.5m $2.5m 0.02% Reduced -1.7k -1,678