Vault-13

SILICON MOTION TECHNOLOGY CO SIMO

SPONSORED ADR · ADR · CUSIP 82706C108 · ISIN US82706C1080

American-Taiwanese electronics technology company

204 institutional holders -32 vs Q2 2024
27,538,99427.5m shares reported held*
$1.6bnreported value*
16 new 80 added 77 reduced 48 sold out net sold ≈ $54.4m (-895.7k 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 ($10.7m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $59.34. Options: 10 managers hold calls ($34.6m notional), 12 hold puts ($20.6m).

Trends to Q3 2024

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: 204204Q3 22Q1 23Q3 23Q1 24Q3 24
Numbers
QuarterHolders
Q3 2022202
Q4 2022198
Q1 2023198
Q2 2023203
Q3 2023195
Q4 2023206
Q1 2024213
Q2 2024236
Q3 2024204

Buyers vs sellers

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

Bought or addedCut or sold out
2000200Q4 22: 110 bought or addedQ4 22: 98 cut or sold outQ1 23: 100 bought or addedQ1 23: 98 cut or sold outQ1 23Q2 23: 86 bought or addedQ2 23: 116 cut or sold outQ3 23: 110 bought or addedQ3 23: 118 cut or sold outQ3 23Q4 23: 121 bought or addedQ4 23: 90 cut or sold outQ1 24: 117 bought or addedQ1 24: 103 cut or sold outQ1 24Q2 24: 136 bought or addedQ2 24: 86 cut or sold outQ3 24: 96 bought or addedQ3 24: 125 cut or sold outQ3 24
Numbers
QuarterBought or addedCut or sold out
Q4 202211098
Q1 202310098
Q2 202386116
Q3 2023110118
Q4 202312190
Q1 2024117103
Q2 202413686
Q3 202496125

Calls vs puts

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

CallsPuts
$0$25m$50m$75m$100mQ4 23 calls: $87.2mQ4 23 puts: $42.1mQ4 23P/C 0.48Q1 24 calls: $54.8mQ1 24 puts: $35.7mQ1 24P/C 0.65Q2 24 calls: $67.8mQ2 24 puts: $28.5mQ2 24P/C 0.42Q3 24 calls: $34.6mQ3 24 puts: $20.6mQ3 24P/C 0.59
Numbers
QuarterCallsPutsP/C
Q4 2023$87.2m$42.1m0.48
Q1 2024$54.8m$35.7m0.65
Q2 2024$67.8m$28.5m0.42
Q3 2024$34.6m$20.6m0.59

Biggest buyers

Invesco Ltd. New +846,133+846.1k
FMR LLC Added +485,862+485.9k
REINHART PARTNERS, LLC. Added +326,358+326.4k
ADAGE CAPITAL PARTNERS GP, L.L.C. Added +320,000+320.0k
Qube Research & Technologies Ltd Added +295,705+295.7k
MORGAN STANLEY Added +256,655+256.7k
Boston Partners Added +200,209+200.2k
MANUFACTURERS LIFE INSURANCE COMPANY, THE Added +152,467+152.5k
NORGES BANK Added +146,456+146.5k
RENAISSANCE TECHNOLOGIES LLC Added +140,500+140.5k

Biggest sellers

LORD, ABBETT & CO. LLC Reduced -710,695-710.7k
HAWK RIDGE CAPITAL MANAGEMENT LP Reduced -341,336-341.3k
BANK OF MONTREAL /CAN/ Sold out -312,022-312.0k
AIGH Capital Management LLC Sold out -275,000-275.0k
Hood River Capital Management LLC Sold out -261,857-261.9k
LMR Partners LLP Sold out -240,000-240.0k
D. E. Shaw & Co., Inc. Reduced -206,599-206.6k
WELLINGTON MANAGEMENT GROUP LLP Reduced -200,352-200.4k
Portolan Capital Management, LLC Sold out -170,246-170.2k
G2 Investment Partners Management LLC Sold out -166,847-166.8k

Biggest calls

PEAK6 Investments LLC Reduced $10.6m175.0k shares
GROUP ONE TRADING LLC Added $7.7m126.3k shares
CITADEL ADVISORS LLC Added $5.9m97.3k shares
JANE STREET GROUP, LLC Added $2.9m47.3k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $2.8m45.6k shares
SIMPLEX TRADING, LLC Added $2.2m35.5k shares
Hunting Hill Global Capital, LLC New $1.4m23.6k shares
IMC-Chicago, LLC New $1.1m17.7k shares
Walleye Capital LLC Reduced $121.5k2.0k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC New $8.2m135.0k shares
PEAK6 Investments LLC Added $2.7m44.4k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $2.4m39.5k shares
AMERIPRISE FINANCIAL INC New $1.6m27.1k shares
Westchester Capital Management, LLC Reduced $1.5m25.3k shares
CITADEL ADVISORS LLC Added $1.4m23.6k shares
SIMPLEX TRADING, LLC Reduced $741.0k12.2k shares
JANE STREET GROUP, LLC Added $710.7k11.7k shares
GROUP ONE TRADING LLC Reduced $425.2k7.0k shares
WOLVERINE TRADING, LLC Added $393.8k6.5k 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 Q3 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 Q3 2024.

Holders, Q3 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 FMR LLC 0.01% of their portfolio BOSTON, MA 2,239,5742.2m $136.0m $136.0m 0.01% Added +485.9k +485,862
2 ACADIAN ASSET MANAGEMENT LLC 0.25% of their portfolio Boston, MA 1,330,4481.3m $80.8m $80.8m 0.25% Reduced -3.0k -2,993
3 LORD, ABBETT & CO. LLC 0.21% of their portfolio JERSEY CITY, NJ 1,103,9131.1m $67.1m $67.1m 0.21% Reduced -710.7k -710,695
4 REINHART PARTNERS, LLC. 2.49% of their portfolio MEQUON, WI 1,080,3751.1m $65.6m $65.6m 2.49% Added +326.4k +326,358
5 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 1,036,5581.0m $63.0m $63.0m 0.00% Added +256.7k +256,655
6 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.10% of their portfolio Boston, MA 893,437893.4k $54.3m $54.3m 0.10% Added +320.0k +320,000
7 Pertento Partners LLP 6.58% of their portfolio LONDON, X0 889,452889.5k $54.0m $54.0m 6.58% Added +50.1k +50,142
8 Invesco Ltd. 0.01% of their portfolio ATLANTA, GA 846,133846.1k $51.4m $51.4m 0.01% New
9 MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio NEW YORK, NY 783,748783.7k $47.6m $47.6m 0.04% Reduced -8.1k -8,075
10 Kodai Capital Management LP 0.84% of their portfolio CHICAGO, IL 666,523666.5k $40.5m $40.5m 0.84% Added +84.8k +84,795
11 Erste Asset Management GmbH 0.48% of their portfolio VIENNA, C4 664,000664.0k $40.3m $40.3m 0.48% Added +4.0k +4,000
12 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio BOSTON, MA 658,868658.9k $1.3m $1.3m 0.00% Reduced -122.0k -121,966
13 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.03% of their portfolio Toronto, A6 570,816570.8k $34.7m $34.7m 0.03% Added +152.5k +152,467
14 WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio Boston, MA 568,859568.9k $34.6m $34.6m 0.01% Reduced -200.4k -200,352
15 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio Boston, MA 523,426523.4k $31.8m $31.8m 0.01% Reduced -3.2k -3,219
16 Kite Lake Capital Management (UK) LLP 5.09% of their portfolio LONDON, X0 516,420516.4k $31.4m $31.4m 5.09% Added +40.0k +40,000
17 FARALLON CAPITAL MANAGEMENT, L.L.C. 0.17% of their portfolio SAN FRANCISCO, CA 514,000514.0k $31.2m $31.2m 0.17% Reduced -53.5k -53,534
18 SYSTEMATIC FINANCIAL MANAGEMENT LP 0.76% of their portfolio TEANECK, NJ 494,328494.3k $30.0m $30.0m 0.76% Added +108.1k +108,096
19 HAWK RIDGE CAPITAL MANAGEMENT LP 1.23% of their portfolio LOS ANGELES, CA 468,702468.7k $28.5m $28.5m 1.23% Reduced -341.3k -341,336
20 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 400,032400.0k $24.3m $24.3m 0.00% Added +71.5k +71,482
21 HERALD INVESTMENT MANAGEMENT Ltd 4.02% of their portfolio LONDON, X0 384,906384.9k $23.3m $23.3m 4.02% Unchanged
22 Robeco Institutional Asset Management B.V. 0.05% of their portfolio ROTTERDAM, P7 376,324376.3k $22.9m $22.9m 0.05% Added +84.0k +83,992
23 Qube Research & Technologies Ltd 0.04% of their portfolio LONDON, X0 370,585370.6k $22.5m $22.5m 0.04% Added +295.7k +295,705
24 HEARTLAND ADVISORS INC 1.17% of their portfolio MILWAUKEE, WI 367,755367.8k $22.3m $22.3m 1.17% Added +43.0k +42,988
25 Think Investments LP 4.15% of their portfolio San Francisco, CA 349,400349.4k $21.2m $21.2m 4.15% Unchanged
26 Man Group plc 0.06% of their portfolio LONDON, X0 344,061344.1k $20.9m $20.9m 0.06% Reduced -125.9k -125,927
27 ALPINE ASSOCIATES MANAGEMENT INC. 0.95% of their portfolio PALM BEACH, FL 340,797340.8k $20.7m $20.7m 0.95% Reduced -58.5k -58,522
28 NEUBERGER BERMAN GROUP LLC 0.02% of their portfolio NEW YORK, NY 327,999328.0k $19.9m $19.9m 0.02% Added +62.3k +62,340
29 CITADEL ADVISORS LLC 0.02% of their portfolio MIAMI, FL 309,759309.8k $18.8m $18.8m 0.02% Added +35.1k +35,122
30 SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 0.85% of their portfolio Boston, MA 309,099309.1k $18.8m $18.8m 0.85% Reduced -164.2k -164,191
31 VOYA INVESTMENT MANAGEMENT LLC 0.02% of their portfolio ATLANTA, GA 281,502281.5k $17.1m $17.1m 0.02% Reduced -39.1k -39,119
32 OBERWEIS ASSET MANAGEMENT INC/ 0.86% of their portfolio LISLE, IL 277,300277.3k $16.8m $16.8m 0.86% Unchanged
33 TWO SIGMA INVESTMENTS, LP 0.04% of their portfolio NEW YORK, NY 265,692265.7k $16.1m $16.1m 0.04% Reduced -12.9k -12,905
34 RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio NEW YORK, NY 254,379254.4k $15.5m $15.5m 0.02% Added +140.5k +140,500
35 STATE OF WISCONSIN INVESTMENT BOARD 0.04% of their portfolio MADISON, WI 247,817247.8k $15.1m $15.1m 0.04% Added +130.8k +130,808
36 Prospect Capital Advisors, LLC 6.22% of their portfolio Sausalito, CA 226,350226.3k $13.7m $13.7m 6.22% Reduced -53.2k -53,250
37 EASTERLY INVESTMENT PARTNERS LLC 1.10% of their portfolio BEVERLY, MA 225,792225.8k $13.7m $13.7m 1.10% Added +6.5k +6,528
38 Melqart Asset Management (UK) Ltd 1.33% of their portfolio London, X0 222,297222.3k $13.5m $13.5m 1.33% Reduced -139.2k -139,206
39 Taconic Capital Advisors LP 1.19% of their portfolio NEW YORK, NY 220,000220.0k $13.4m $13.4m 1.19% Added +10.0k +10,000
40 ODDO BHF ASSET MANAGEMENT SAS 0.66% of their portfolio PARIS, I0 217,500217.5k $13.2m $13.2m 0.66% First filing
41 Russell Investments Group, Ltd. 0.02% of their portfolio Seattle, WA 215,505215.5k $13.1m $13.1m 0.02% Added +77.9k +77,886
42 Boston Partners 0.02% of their portfolio BOSTON, MA 211,369211.4k $12.8m $12.8m 0.02% Added +200.2k +200,209
43 CANADA PENSION PLAN INVESTMENT BOARD 0.01% of their portfolio TORONTO ONTARIO, A6 206,500206.5k $12.5m $12.5m 0.01% Reduced -13.0k -13,000
44 NEUMEIER POMA INVESTMENT COUNSEL LLC 1.12% of their portfolio CARMEL, CA 193,385193.4k $11.7m $11.7m 1.12% Reduced -19.6k -19,560
45 SCHWARTZ INVESTMENT COUNSEL INC 0.41% of their portfolio PLYMOUTH, MI 190,000190.0k $11.5m $11.5m 0.41% Added +40.0k +40,000
46 NORGES BANK 0.00% of their portfolio OSLO, Q8 190,000190.0k $11.5m $11.5m 0.00% Added +146.5k +146,456
47 Clearline Capital LP 1.01% of their portfolio NEW YORK, NY 188,842188.8k $11.5m $11.5m 1.01% Added +44.5k +44,473
48 Polar Asset Management Partners Inc. 0.26% of their portfolio TORONTO, A6 180,000180.0k $10.9m $10.9m 0.26% Added +27.9k +27,900
49 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.02% of their portfolio TORONTO, A6 160,500160.5k $9.7m $9.7m 0.02% Unchanged
50 F/m Investments LLC 0.30% of their portfolio WASHINGTON, DC 155,815155.8k $9.5m $9.5m 0.30% Reduced -1.2k -1,217
51 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 147,980148.0k $9.0m $9.0m 0.00% Added +46.7k +46,661
52 KENNEDY CAPITAL MANAGEMENT LLC 0.19% of their portfolio ST LOUIS, MO 141,432141.4k $8.6m $8.6m 0.19% Reduced -71.8k -71,782
53 BlackRock, Inc. 0.00% of their portfolio New York, NY 140,848140.8k $8.6m $8.6m 0.00% First filing
54 HARBOR CAPITAL ADVISORS, INC. 0.34% of their portfolio CHICAGO, IL 128,299128.3k $7.8m $7.8m 0.34% Added +62.7k +62,733
55 UBS Group AG 0.00% of their portfolio ZURICH, V8 122,556122.6k $7.4m $7.4m 0.00% Added +29.3k +29,255
56 TWO SIGMA ADVISERS, LP 0.02% of their portfolio NEW YORK, NY 121,981122.0k $7.4m $7.4m 0.02% Reduced -81.3k -81,300
57 MARSHALL WACE, LLP 0.01% of their portfolio LONDON, X0 116,294116.3k $7.1m $7.1m 0.01% Added +26.0k +25,977
58 SILVERCREST ASSET MANAGEMENT GROUP LLC 0.04% of their portfolio NEW YORK, NY 107,134107.1k $6.5m $6.5m 0.04% Reduced -702 -702
59 272 Capital LP 3.52% of their portfolio DALLAS, TX 101,391101.4k $6.2m $6.2m 3.52% Added +36.1k +36,092
60 Beryl Capital Management LLC 1.32% of their portfolio REDONDO BEACH, CA 100,859100.9k $6.1m $6.1m 1.32% New
61 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.03% of their portfolio COLUMBUS, OH 97,20697.2k $5.9m $5.9m 0.03% New
62 Skylands Capital, LLC 0.78% of their portfolio Milwaukee, WI 94,95095.0k $5.8m $5.8m 0.78% Added +56.5k +56,550
63 CAPITAL FUND MANAGEMENT S.A. 0.06% of their portfolio PARIS, I0 91,75991.8k $5.6m $5.6m 0.06% Added +20.2k +20,178
64 Trexquant Investment LP 0.07% of their portfolio STAMFORD, CT 88,96389.0k $5.4m $5.4m 0.07% Reduced -39.4k -39,439
65 Janney Montgomery Scott LLC 0.01% of their portfolio PHILADELPHIA, PA 84,51384.5k $5.1m $5.1m 0.01% Reduced -844 -844
66 Ramirez Asset Management, Inc. 0.93% of their portfolio NEW YORK, NY 79,78779.8k $4.8m $4.8m 0.93% Added +11.9k +11,931
67 Crestline Management, L.P. 0.27% of their portfolio FORT WORTH, TX 77,47077.5k $4.7m $4.7m 0.27% Added +13.8k +13,774
68 Alberta Investment Management Corp 0.04% of their portfolio EDMONTON, A0 70,80070.8k $4.3m $4.3m 0.04% Unchanged
69 Granahan Investment Management, LLC 0.16% of their portfolio WALTHAM, MA 66,93366.9k $4.1m $4.1m 0.16% Reduced -118.7k -118,675
70 BOOTHBAY FUND MANAGEMENT, LLC 0.12% of their portfolio NEW YORK, NY 66,33466.3k $4.0m $4.0m 0.12% Reduced -12.3k -12,304
71 Apis Capital Advisors, LLC 2.45% of their portfolio New York, NY 58,00058.0k $3.5m $3.5m 2.45% Unchanged
72 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 55,45255.5k $3.4m $3.4m 0.00% Added +140 +140
73 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 54,94854.9k $3.3m $3.3m 0.00% Reduced -1.3k -1,348
74 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 54,53754.5k $3.3m $3.3m 0.00% Reduced -26.8k -26,804
75 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 47,51247.5k $2.9m $2.9m 0.00% Reduced -13.2k -13,158
76 Grantham, Mayo, Van Otterloo & Co. LLC 0.01% of their portfolio Boston, MA 41,96542.0k $2.5m $2.5m 0.01% Added +29.3k +29,328
77 CAXTON ASSOCIATES LP 0.11% of their portfolio NEW YORK, NY 40,98741.0k $2.5m $2.5m 0.11% Reduced -35.9k -35,912
78 Allianz Asset Management GmbH 0.00% of their portfolio MUNICH, 2M 40,33040.3k $2.4m $2.4m 0.00% Added +19.5k +19,489
79 RENAISSANCE GROUP LLC 0.10% of their portfolio Covington, KY 39,83339.8k $2.4m $2.4m 0.10% Reduced -3.5k -3,512
80 FIRST TRUST ADVISORS LP 0.00% of their portfolio Wheaton, IL 38,19638.2k $2.3m $2.3m 0.00% New
81 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 38,07638.1k $2.3m $2.3m 0.00% Reduced -74.0k -73,999
82 Balyasny Asset Management L.P. 0.01% of their portfolio Chicago, IL 37,64337.6k $2.3m $2.3m 0.01% Added +34.0k +34,012
83 Jump Financial, LLC 0.05% of their portfolio Chicago, IL 36,67636.7k $2.2m $2.2m 0.05% Reduced -14.1k -14,136
84 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 36,01536.0k $2.2m $2.2m 0.00% Reduced -110.6k -110,581
85 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 35,94835.9k $2.2m $2.2m 0.00% Added +253 +253
86 SG Americas Securities, LLC 0.01% of their portfolio NEW YORK, NY 33,91733.9k $2.1m $2.1m 0.01% Added +197 +197
87 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 31,34131.3k $1.9m $1.9m 0.00% Added +1.8k +1,784
88 OAK ASSOCIATES LTD /OH/ 0.13% of their portfolio AKRON, OH 30,81030.8k $1.9m $1.9m 0.13% Unchanged
89 Point72 Asset Management, L.P. 0.01% of their portfolio STAMFORD, CT 30,50030.5k $1.9m $1.9m 0.01% Reduced -41.7k -41,700
90 GABELLI & Co INVESTMENT ADVISERS, INC. 0.31% of their portfolio Rye, NY 30,20930.2k $1.8m $1.8m 0.31% Reduced -200 -200
91 Cerity Partners LLC 0.00% of their portfolio NEW YORK, NY 30,06930.1k $1.8m $1.8m 0.00% New
92 Keeley-Teton Advisors, LLC 0.18% of their portfolio Chicago, IL 27,31627.3k $1.7m $1.7m 0.18% Added +4.2k +4,234
93 GABELLI FUNDS LLC 0.01% of their portfolio Rye, NY 26,70026.7k $1.6m $1.6m 0.01% Added +800 +800
94 Westchester Capital Management, LLC 0.07% of their portfolio VALHALLA, NY 25,30025.3k $1.5m $1.5m 0.07% Reduced -65.0k -65,000
95 CastleKnight Management LP 0.17% of their portfolio New York, NY 24,32424.3k $1.5m $1.5m 0.17% Reduced -88.7k -88,676
96 Employees Retirement System of Texas 0.01% of their portfolio AUSTIN, TX 23,83323.8k $1.4m $1.4m 0.01% Reduced -22.1k -22,131
97 LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 23,40423.4k $1.4m $1.4m 0.00% Added +18.5k +18,451
98 NAPLES GLOBAL ADVISORS, LLC 0.12% of their portfolio NAPLES, FL 21,08521.1k $1.3m $1.3m 0.12% Added +3.7k +3,675
99 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 20,68020.7k $1.3m $1.3m 0.00% Reduced -206.6k -206,599
100 Manatuck Hill Partners, LLC 0.46% of their portfolio WESTPORT, CT 20,00020.0k $1.2m $1.2m 0.46% Added +10.0k +10,000