Vault-13

SILICON MOTION TECHNOLOGY CO SIMO

SPONSORED ADR · ADR · CUSIP 82706C108 · ISIN US82706C1080

American-Taiwanese electronics technology company

214 institutional holders +22 vs Q1 2025
28,289,77128.3m shares reported held*
$2.1bnreported value*
53 new 60 added 73 reduced 27 sold out net bought ≈ $71.5m (+951.6k 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 ($15.1m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $75.18. Options: 10 managers hold calls ($36.1m notional), 10 hold puts ($22.9m).

Trends to Q2 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: 214214Q3 22Q2 23Q1 24Q4 24Q2 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

Buyers vs sellers

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

Bought or addedCut or sold out
2000200Q3 23: 110 bought or addedQ3 23: 118 cut or sold outQ4 23: 121 bought or addedQ4 23: 90 cut or sold outQ4 23Q1 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 25
Numbers
QuarterBought or addedCut or sold out
Q3 2023110118
Q4 202312190
Q1 2024117103
Q2 202413686
Q3 202496125
Q4 202498107
Q1 202510494
Q2 2025113100

Calls vs puts

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

CallsPuts
$0$20m$40m$60mQ3 24 calls: $34.6mQ3 24 puts: $20.6mQ3 24P/C 0.59Q4 24 calls: $44.6mQ4 24 puts: $15.1mQ4 24P/C 0.34Q1 25 calls: $23.5mQ1 25 puts: $9.4mQ1 25P/C 0.40Q2 25 calls: $36.1mQ2 25 puts: $22.9mQ2 25P/C 0.64
Numbers
QuarterCallsPutsP/C
Q3 2024$34.6m$20.6m0.59
Q4 2024$44.6m$15.1m0.34
Q1 2025$23.5m$9.4m0.40
Q2 2025$36.1m$22.9m0.64

Biggest buyers

Point72 Asset Management, L.P. Added +963,941+963.9k
FRONTIER CAPITAL MANAGEMENT CO LLC Added +686,261+686.3k
FMR LLC Added +602,043+602.0k
Ophir Asset Management Pty Ltd New +364,569+364.6k
HIGHLAND PEAK CAPITAL, LLC New +345,398+345.4k
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC Added +230,025+230.0k
HAWK RIDGE CAPITAL MANAGEMENT LP New +216,930+216.9k
Boston Partners Added +183,458+183.5k
SORA INVESTORS LLC Added +177,922+177.9k
WELLINGTON MANAGEMENT GROUP LLP Added +154,446+154.4k

Biggest sellers

Invesco Ltd. Reduced -769,699-769.7k
Rubric Capital Management LP Sold out -700,882-700.9k
MORGAN STANLEY Reduced -540,190-540.2k
LMR Partners LLP Reduced -405,000-405.0k
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Sold out -296,700-296.7k
STATE OF WISCONSIN INVESTMENT BOARD Reduced -247,150-247.2k
Point72 Hong Kong Ltd Reduced -176,280-176.3k
SG Capital Management LLC Reduced -156,805-156.8k
MANUFACTURERS LIFE INSURANCE COMPANY, THE Reduced -152,205-152.2k
Kite Lake Capital Management (UK) LLP Reduced -120,600-120.6k

Biggest calls

GROUP ONE TRADING LLC Added $11.4m151.1k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $10.7m142.6k shares
PEAK6 LLC Added $7.7m102.4k shares
JANE STREET GROUP, LLC Added $2.9m38.6k shares
CITADEL ADVISORS LLC Reduced $1.6m20.7k shares
IMC-Chicago, LLC Added $1.2m16.1k shares
SIMPLEX TRADING, LLC Reduced $308.0k4.1k shares
WOLVERINE TRADING, LLC Reduced $287.9k3.8k shares
Walleye Trading LLC Reduced $75.2k1.0k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

Walleye Trading LLC Added $8.5m113.6k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $6.9m92.0k shares
JANE STREET GROUP, LLC New $2.7m36.0k shares
CITADEL ADVISORS LLC Reduced $1.4m19.1k shares
GROUP ONE TRADING LLC Reduced $1.4m18.1k shares
SIMPLEX TRADING, LLC Added $1.1m14.1k shares
Black Maple Capital Management LP New $375.9k5.0k shares
WOLVERINE TRADING, LLC Reduced $341.0k4.5k shares
TUDOR INVESTMENT CORP ET AL Reduced $203.0k2.7k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 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 Q2 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 Q2 2025.

Holders, Q2 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 FMR LLC 0.01% of their portfolio BOSTON, MA 2,744,0132.7m $206.3m $206.3m 0.01% Added +602.0k +602,043
2 REINHART PARTNERS, LLC. 3.78% of their portfolio MEQUON, WI 1,471,5831.5m $110.6m $110.6m 3.78% Added +107.3k +107,292
3 ACADIAN ASSET MANAGEMENT LLC 0.20% of their portfolio Boston, MA 1,310,3531.3m $98.5m $98.5m 0.20% Added +52.0k +51,978
4 FRONTIER CAPITAL MANAGEMENT CO LLC 0.89% of their portfolio Boston, MA 1,281,1151.3m $96.3m $96.3m 0.89% Added +686.3k +686,261
5 Pertento Partners LLP 10.68% of their portfolio LONDON, X0 1,259,0041.3m $94.6m $94.6m 10.68% Added +49.5k +49,541
6 LORD, ABBETT & CO. LLC 0.30% of their portfolio JERSEY CITY, NJ 1,248,5261.2m $93.9m $93.9m 0.30% Reduced -17.9k -17,894
7 Point72 Asset Management, L.P. 0.19% of their portfolio STAMFORD, CT 1,064,4021.1m $80.0m $80.0m 0.19% Added +963.9k +963,941
8 Invesco Ltd. 0.01% of their portfolio ATLANTA, GA 905,949905.9k $68.1m $68.1m 0.01% Reduced -769.7k -769,699
9 WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio Boston, MA 850,000850.0k $63.9m $63.9m 0.01% Added +154.4k +154,446
10 LAZARD ASSET MANAGEMENT LLC 0.08% of their portfolio NEW YORK, NY 765,922765.9k $57.6m $57.6m 0.08% Added +126.6k +126,566
11 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.02% of their portfolio Boston, MA 742,378742.4k $55.8m $55.8m 0.02% Reduced -15.1k -15,128
12 Boston Partners 0.06% of their portfolio BOSTON, MA 735,597735.6k $55.3m $55.3m 0.06% Added +183.5k +183,458
13 Erste Asset Management GmbH 0.42% of their portfolio VIENNA, C4 664,000664.0k $49.9m $49.9m 0.42% Unchanged
14 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.04% of their portfolio Toronto, A6 646,913646.9k $48.6m $48.6m 0.04% Reduced -152.2k -152,205
15 SYSTEMATIC FINANCIAL MANAGEMENT LP 1.20% of their portfolio TEANECK, NJ 597,472597.5k $44.9m $44.9m 1.20% Added +3.8k +3,838
16 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.08% of their portfolio Boston, MA 596,914596.9k $44.9m $44.9m 0.08% Reduced -49.4k -49,350
17 SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 1.51% of their portfolio Boston, MA 513,937513.9k $38.6m $38.6m 1.51% Added +230.0k +230,025
18 NEUMEIER POMA INVESTMENT COUNSEL LLC 3.03% of their portfolio CARMEL, CA 432,255432.3k $32.5m $32.5m 3.03% Added +79.2k +79,240
19 HEARTLAND ADVISORS INC 1.68% of their portfolio MILWAUKEE, WI 401,732401.7k $30.2m $30.2m 1.68% Reduced -49.0k -49,023
20 Kite Lake Capital Management (UK) LLP 46.84% of their portfolio LONDON, X0 391,528391.5k $29.4m $29.4m 46.84% Reduced -120.6k -120,600
21 HERALD INVESTMENT MANAGEMENT Ltd 4.28% of their portfolio LONDON, X0 384,906384.9k $28.9m $28.9m 4.28% Unchanged
22 Ophir Asset Management Pty Ltd 4.44% of their portfolio SYDNEY, C3 364,569364.6k $27.9m $27.9m 4.44% New
23 Think Investments LP 4.55% of their portfolio San Francisco, CA 349,400349.4k $26.3m $26.3m 4.55% Unchanged
24 HIGHLAND PEAK CAPITAL, LLC 10.62% of their portfolio OLD GREENWICH, CT 345,398345.4k $26.0m $26.0m 10.62% New
25 ALPINE ASSOCIATES MANAGEMENT INC. 1.34% of their portfolio PALM BEACH, FL 332,005332.0k $25.0m $25.0m 1.34% Reduced -2.3k -2,300
26 Robeco Institutional Asset Management B.V. 0.04% of their portfolio ROTTERDAM, P7 307,120307.1k $23.1m $23.1m 0.04% Added +43.9k +43,854
27 SORA INVESTORS LLC 2.07% of their portfolio BRYN MAWR, PA 305,435305.4k $23.0m $23.0m 2.07% Added +177.9k +177,922
28 Russell Investments Group, Ltd. 0.03% of their portfolio Seattle, WA 268,279268.3k $20.2m $20.2m 0.03% Added +9.7k +9,707
29 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 268,095268.1k $20.2m $20.2m 0.00% Added +39.0k +38,969
30 M&G PLC 0.11% of their portfolio London, X0 263,184263.2k $19.7m $19.7m 0.11% Added +34.9k +34,919
31 Apis Capital Advisors, LLC 6.84% of their portfolio New York, NY 256,000256.0k $19.2m $19.2m 6.84% Added +92.0k +92,000
32 OBERWEIS ASSET MANAGEMENT INC/ 0.75% of their portfolio LISLE, IL 230,600230.6k $17.3m $17.3m 0.75% Added +47.5k +47,500
33 Clearline Capital LP 1.51% of their portfolio NEW YORK, NY 227,601227.6k $17.1m $17.1m 1.51% Reduced -62.2k -62,245
34 SCHWARTZ INVESTMENT COUNSEL INC 0.54% of their portfolio PLYMOUTH, MI 220,000220.0k $16.5m $16.5m 0.54% Added +30.0k +30,000
35 ODDO BHF ASSET MANAGEMENT SAS 0.62% of their portfolio PARIS, I0 217,500217.5k $16.3m $16.3m 0.62% Unchanged
36 HAWK RIDGE CAPITAL MANAGEMENT LP 0.68% of their portfolio LOS ANGELES, CA 216,930216.9k $16.3m $16.3m 0.68% New
37 Polar Asset Management Partners Inc. 0.39% of their portfolio TORONTO, A6 205,751205.8k $15.5m $15.5m 0.39% Added +92.5k +92,475
38 HARBOR CAPITAL ADVISORS, INC. 0.64% of their portfolio CHICAGO, IL 202,721202.7k $15.2m $15.2m 0.64% Added +80.2k +80,208
39 EASTERLY INVESTMENT PARTNERS LLC 1.09% of their portfolio BEVERLY, MA 201,360201.4k $15.1m $15.1m 1.09% Reduced -7.2k -7,196
40 UBS Group AG 0.00% of their portfolio ZURICH, V8 186,467186.5k $14.0m $14.0m 0.00% Reduced -10.6k -10,581
41 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 185,596185.6k $14.0m $14.0m 0.00% Reduced -540.2k -540,190
42 SummitTX Capital, L.P. 0.60% of their portfolio FORT WORTH, TX 180,039180.0k $13.5m $13.5m 0.60% Added +55.3k +55,272
43 First Eagle Investment Management, LLC 0.02% of their portfolio NEW YORK, NY 146,200146.2k $11.0m $11.0m 0.02% New
44 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 144,834144.8k $10.9m $10.9m 0.00% Added +75.2k +75,174
45 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 138,483138.5k $10.4m $10.4m 0.00% Added +572 +572
46 Granahan Investment Management, LLC 0.40% of their portfolio WALTHAM, MA 130,091130.1k $9.8m $9.8m 0.40% New
47 Prospect Capital Advisors, LLC 5.81% of their portfolio Sausalito, CA 128,350128.3k $9.6m $9.6m 5.81% Unchanged
48 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 125,042125.0k $9.4m $9.4m 0.01% Reduced -33.6k -33,585
49 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 119,706119.7k $9.0m $9.0m 0.01% Reduced -117.6k -117,616
50 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 114,840114.8k $8.6m $8.6m 0.00% Added +21.0k +21,019
51 SG Capital Management LLC 0.73% of their portfolio CHICAGO, IL 113,851113.9k $8.6m $8.6m 0.73% Reduced -156.8k -156,805
52 KNIGHTSBRIDGE ASSET MANAGEMENT, LLC 1.70% of their portfolio NEWPORT BEACH, CA 103,007103.0k $7.7m $7.7m 1.70% New
53 D. E. Shaw & Co., Inc. 0.01% of their portfolio New York, NY 102,495102.5k $7.7m $7.7m 0.01% New
54 Balyasny Asset Management L.P. 0.02% of their portfolio Chicago, IL 99,33399.3k $7.5m $7.5m 0.02% Reduced -105.6k -105,583
55 Cinctive Capital Management LP 0.40% of their portfolio New York, NY 94,88094.9k $7.1m $7.1m 0.40% New
56 Taconic Capital Advisors LP 0.76% of their portfolio NEW YORK, NY 87,88487.9k $6.6m $6.6m 0.76% Reduced -30.0k -30,000
57 Driehaus Capital Management LLC 0.05% of their portfolio Chicago, IL 87,65187.7k $6.6m $6.6m 0.05% New
58 Janney Montgomery Scott LLC 0.02% of their portfolio PHILADELPHIA, PA 86,63586.6k $6.5m $6.5m 0.02% Added +2.3k +2,295
59 Jain Global LLC 0.09% of their portfolio NEW YORK, NY 77,61377.6k $5.8m $5.8m 0.09% Reduced -105.6k -105,607
60 Susquehanna Portfolio Strategies, LLC 0.13% of their portfolio Bala Cynwyd, PA 77,32277.3k $5.8m $5.8m 0.13% New
61 Concentric Capital Strategies, LP 0.32% of their portfolio Stamford, CT 74,30174.3k $5.6m $5.6m 0.32% New
62 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio BOSTON, MA 74,05374.1k $5.6m $5.6m 0.00% New
63 Ramirez Asset Management, Inc. 0.84% of their portfolio NEW YORK, NY 74,01274.0k $5.6m $5.6m 0.84% Reduced -1.2k -1,248
64 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 69,25669.3k $5.2m $5.2m 0.00% Reduced -4.7k -4,732
65 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 65,03865.0k $4.9m $4.9m 0.00% Added +15.4k +15,410
66 SEI INVESTMENTS CO 0.01% of their portfolio OAKS, PA 64,95265.0k $4.9m $4.9m 0.01% Added +4.6k +4,648
67 BlackRock, Inc. 0.00% of their portfolio New York, NY 58,29858.3k $4.4m $4.4m 0.00% Reduced -18.6k -18,599
68 Melqart Asset Management (UK) Ltd 0.62% of their portfolio London, X0 57,94457.9k $4.4m $4.4m 0.62% Reduced -65.5k -65,546
69 Capitolis Liquid Global Markets LLC 0.03% of their portfolio NEW YORK, NY 57,50057.5k $4.3m $4.3m 0.03% New
70 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 56,52856.5k $4.2m $4.2m 0.00% Reduced -68 -68
71 BOOTHBAY FUND MANAGEMENT, LLC 0.13% of their portfolio NEW YORK, NY 55,98556.0k $4.2m $4.2m 0.13% New
72 ABN AMRO INVESTMENT SOLUTIONS 0.08% of their portfolio PARIS CEDEX 008, I0 55,63155.6k $4.2m $4.2m 0.08% Added +7.5k +7,517
73 FIRST TRUST ADVISORS LP 0.00% of their portfolio Wheaton, IL 52,65652.7k $4.0m $4.0m 0.00% Reduced -3.5k -3,529
74 Skylands Capital, LLC 0.57% of their portfolio Milwaukee, WI 52,00052.0k $3.9m $3.9m 0.57% Reduced -20.0k -20,000
75 F/m Investments LLC 0.14% of their portfolio WASHINGTON, DC 50,74750.7k $3.8m $3.8m 0.14% Added +76 +76
76 STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio MADISON, WI 50,66750.7k $3.8m $3.8m 0.01% Reduced -247.2k -247,150
77 LMR Partners LLP 0.05% of their portfolio LONDON, X0 45,00045.0k $3.4m $3.4m 0.05% Reduced -405.0k -405,000
78 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 43,33643.3k $3.3m $3.3m 0.00% New
79 Marex Group Ltd 0.06% of their portfolio London, X0 42,52742.5k $3.2m $3.2m 0.06% New
80 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 42,46142.5k $3.2m $3.2m 0.00% Reduced -2.4k -2,359
81 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio COLUMBUS, OH 41,15241.2k $3.1m $3.1m 0.01% Unchanged
82 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 37,80637.8k $2.8m $2.8m 0.00% Added +962 +962
83 1492 Capital Management LLC 1.25% of their portfolio MILWAUKEE, WI 36,21136.2k $2.7m $2.7m 1.25% Added +4.8k +4,820
84 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 36,01536.0k $2.7m $2.7m 0.00% Unchanged
85 OAK ASSOCIATES LTD /OH/ 0.16% of their portfolio AKRON, OH 33,05033.0k $2.5m $2.5m 0.16% Reduced -1.1k -1,093
86 Cerity Partners LLC 0.00% of their portfolio NEW YORK, NY 30,23330.2k $2.3m $2.3m 0.00% Reduced -1.2k -1,180
87 Vident Advisory, LLC 0.02% of their portfolio Alpharetta, GA 29,30029.3k $2.2m $2.2m 0.02% Added +20.0k +20,004
88 Lombard Odier Asset Management (USA) Corp 0.55% of their portfolio New York, NY 28,99629.0k $2.2m $2.2m 0.55% Added +128 +128
89 RENAISSANCE GROUP LLC 0.08% of their portfolio Covington, KY 28,16128.2k $2.1m $2.1m 0.08% Reduced -4.1k -4,114
90 GAMCO INVESTORS, INC. ET AL 0.02% of their portfolio GREENWICH, CT 26,22826.2k $2.0m $2.0m 0.02% New
91 XTX Topco Ltd 0.07% of their portfolio LONDON, X0 23,67823.7k $1.8m $1.8m 0.07% New
92 GSA CAPITAL PARTNERS LLP 0.12% of their portfolio LONDON, X0 23,16423.2k $1.7m $1.7m 0.12% New
93 Point72 Hong Kong Ltd 0.11% of their portfolio HONG KONG, K3 21,73121.7k $1.6m $1.6m 0.11% Reduced -176.3k -176,280
94 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 20,34620.3k $1.5m $1.5m 0.00% Reduced -70.7k -70,678
95 Manatuck Hill Partners, LLC 0.57% of their portfolio WESTPORT, CT 20,00020.0k $1.5m $1.5m 0.57% New
96 TEALWOOD ASSET MANAGEMENT INC 0.62% of their portfolio Minneapolis, MN 18,56918.6k $1.4m $1.4m 0.62% Reduced -28 -28
97 Orion Porfolio Solutions, LLC 0.01% of their portfolio OMAHA, NE 17,73317.7k $1.3m $1.3m 0.01% Added +159 +159
98 NAPLES GLOBAL ADVISORS, LLC 0.11% of their portfolio NAPLES, FL 17,68017.7k $1.3m $1.3m 0.11% Reduced -4.4k -4,380
99 GABELLI & Co INVESTMENT ADVISERS, INC. 0.19% of their portfolio Rye, NY 16,70916.7k $1.3m $1.3m 0.19% Reduced -17.9k -17,850
100 GABELLI FUNDS LLC 0.01% of their portfolio Rye, NY 16,46216.5k $1.2m $1.2m 0.01% Reduced -13.5k -13,538