Vault-13

SILICON MOTION TECHNOLOGY CO SIMO

SPONSORED ADR · ADR · CUSIP 82706C108 · ISIN US82706C1080

American-Taiwanese electronics technology company

236 institutional holders +23 vs Q1 2024
28,293,59228.3m shares reported held*
$2.3bnreported value*
44 new 92 added 66 reduced 20 sold out net bought ≈ $10.6m (+131.7k 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 ($7.3m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $80.98. Options: 13 managers hold calls ($67.8m notional), 11 hold puts ($28.5m).

Trends to Q2 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: 236236Q3 22Q1 23Q3 23Q1 24Q2 24
Numbers
QuarterHolders
Q3 2022202
Q4 2022198
Q1 2023198
Q2 2023203
Q3 2023195
Q4 2023206
Q1 2024213
Q2 2024236

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 outQ4 22Q1 23: 100 bought or addedQ1 23: 98 cut or sold outQ2 23: 86 bought or addedQ2 23: 116 cut or sold outQ2 23Q3 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 24
Numbers
QuarterBought or addedCut or sold out
Q4 202211098
Q1 202310098
Q2 202386116
Q3 2023110118
Q4 202312190
Q1 2024117103
Q2 202413686

Calls vs puts

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

CallsPuts
$0$50m$100m$150mQ3 23 calls: $108.4mQ3 23 puts: $69.6mQ3 23P/C 0.64Q4 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 0.42
Numbers
QuarterCallsPutsP/C
Q3 2023$108.4m$69.6m0.64
Q4 2023$87.2m$42.1m0.48
Q1 2024$54.8m$35.7m0.65
Q2 2024$67.8m$28.5m0.42

Biggest buyers

FMR LLC Added +779,189+779.2k
LORD, ABBETT & CO. LLC Added +419,350+419.4k
AIGH Capital Management LLC New +275,000+275.0k
Hood River Capital Management LLC New +261,857+261.9k
Robeco Institutional Asset Management B.V. Added +251,019+251.0k
Pertento Partners LLP Added +243,935+243.9k
Man Group plc Added +227,414+227.4k
NEUMEIER POMA INVESTMENT COUNSEL LLC New +212,945+212.9k
JPMORGAN CHASE & CO Added +183,238+183.2k
NEUBERGER BERMAN GROUP LLC Added +159,645+159.6k

Biggest sellers

MORGAN STANLEY Reduced -1,077,766-1.1m
Invesco Ltd. Sold out -638,744-638.7k
HAWK RIDGE CAPITAL MANAGEMENT LP Reduced -483,290-483.3k
WESTFIELD CAPITAL MANAGEMENT CO LP Sold out -374,303-374.3k
WELLINGTON MANAGEMENT GROUP LLP Reduced -368,611-368.6k
FARALLON CAPITAL MANAGEMENT, L.L.C. Reduced -287,915-287.9k
Balyasny Asset Management L.P. Reduced -173,502-173.5k
Melqart Asset Management (UK) Ltd Reduced -165,166-165.2k
UBS Group AG Reduced -164,161-164.2k
WATER ISLAND CAPITAL LLC Reduced -150,695-150.7k

Biggest calls

SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC New $20.2m250.0k shares
PEAK6 Investments LLC Added $14.4m177.8k shares
CastleKnight Management LP Unchanged $8.1m100.0k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $7.7m94.6k shares
GROUP ONE TRADING LLC Reduced $4.8m59.7k shares
CITADEL ADVISORS LLC Reduced $2.9m36.3k shares
SIMPLEX TRADING, LLC Reduced $2.5m31.4k shares
Cinctive Capital Management LP New $2.0m25.0k shares
JANE STREET GROUP, LLC Reduced $1.7m21.0k shares
Walleye Trading LLC Reduced $1.6m19.9k shares

Biggest puts

Westchester Capital Management, LLC New $7.3m90.3k shares
GROUP ONE TRADING LLC Added $7.1m87.3k shares
Walleye Trading LLC Reduced $4.8m58.8k shares
PEAK6 Investments LLC Added $2.6m32.7k shares
SIMPLEX TRADING, LLC Reduced $2.3m28.6k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $2.2m27.3k shares
CITADEL ADVISORS LLC Reduced $1.2m14.4k shares
WOLVERINE TRADING, LLC Reduced $413.0k5.1k shares
Walleye Capital LLC Reduced $413.0k5.1k shares
JANE STREET GROUP, LLC Reduced $226.8k2.8k 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 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 Q2 2024.

Holders, Q2 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 LORD, ABBETT & CO. LLC 0.24% of their portfolio JERSEY CITY, NJ 1,814,6081.8m $147.0m $147.0m 0.24% Added +419.4k +419,350
2 FMR LLC 0.01% of their portfolio BOSTON, MA 1,753,7121.8m $142.0m $142.0m 0.01% Added +779.2k +779,189
3 ACADIAN ASSET MANAGEMENT LLC 0.33% of their portfolio Boston, MA 1,333,4411.3m $107.9m $107.9m 0.33% Reduced -3.0k -3,007
4 Pertento Partners LLP 8.61% of their portfolio LONDON, X0 839,310839.3k $68.0m $68.0m 8.61% Added +243.9k +243,935
5 HAWK RIDGE CAPITAL MANAGEMENT LP 2.82% of their portfolio LOS ANGELES, CA 810,038810.0k $65.6m $65.6m 2.82% Reduced -483.3k -483,290
6 MILLENNIUM MANAGEMENT LLC 0.05% of their portfolio NEW YORK, NY 791,823791.8k $64.1m $64.1m 0.05% Added +105.1k +105,084
7 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.06% of their portfolio BOSTON, MA 780,834780.8k $63.2m $63.2m 0.06% Reduced -16.9k -16,925
8 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 779,903779.9k $63.2m $63.2m 0.00% Reduced -1.1m -1,077,766
9 WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio Boston, MA 769,211769.2k $62.3m $62.3m 0.01% Reduced -368.6k -368,611
10 REINHART PARTNERS, LLC. 2.54% of their portfolio MEQUON, WI 754,017754.0k $61.1m $61.1m 2.54% Added +17.6k +17,646
11 Erste Asset Management GmbH 0.71% of their portfolio VIENNA, C4 660,000660.0k $53.5m $53.5m 0.71% Reduced -20.0k -20,000
12 Kodai Capital Management LP 0.90% of their portfolio CHICAGO, IL 581,728581.7k $47.1m $47.1m 0.90% Added +33.0k +33,044
13 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.09% of their portfolio Boston, MA 573,437573.4k $46.4m $46.4m 0.09% Added +131.3k +131,316
14 FARALLON CAPITAL MANAGEMENT, L.L.C. 0.27% of their portfolio SAN FRANCISCO, CA 567,534567.5k $46.0m $46.0m 0.27% Reduced -287.9k -287,915
15 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio Boston, MA 526,645526.6k $42.7m $42.7m 0.01% Reduced -5.5k -5,515
16 Kite Lake Capital Management (UK) LLP 69.27% of their portfolio LONDON, X0 476,420476.4k $38.6m $38.6m 69.27% Not comparable
17 SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 1.77% of their portfolio Boston, MA 473,290473.3k $38.3m $38.3m 1.77% Added +95.3k +95,303
18 Man Group plc 0.10% of their portfolio LONDON, X0 469,988470.0k $38.1m $38.1m 0.10% Added +227.4k +227,414
19 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.03% of their portfolio Toronto, A6 418,349418.3k $33.9m $33.9m 0.03% Added +155.9k +155,942
20 ALPINE ASSOCIATES MANAGEMENT INC. 1.55% of their portfolio PALM BEACH, FL 399,319399.3k $32.3m $32.3m 1.55% Reduced -35.3k -35,302
21 SYSTEMATIC FINANCIAL MANAGEMENT LP 0.95% of their portfolio TEANECK, NJ 386,232386.2k $31.3m $31.3m 0.95% Added +82.9k +82,896
22 HERALD INVESTMENT MANAGEMENT Ltd 5.10% of their portfolio LONDON, X0 384,906384.9k $31.1m $31.1m 5.10% Unchanged
23 Melqart Asset Management (UK) Ltd 2.75% of their portfolio London, X0 361,503361.5k $29.3m $29.3m 2.75% Reduced -165.2k -165,166
24 Think Investments LP 5.82% of their portfolio San Francisco, CA 349,400349.4k $28.3m $28.3m 5.82% Added +129.2k +129,200
25 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 328,550328.6k $26.6m $26.6m 0.00% Added +183.2k +183,238
26 HEARTLAND ADVISORS INC 1.47% of their portfolio MILWAUKEE, WI 324,767324.8k $26.3m $26.3m 1.47% Added +32.8k +32,792
27 VOYA INVESTMENT MANAGEMENT LLC 0.03% of their portfolio ATLANTA, GA 320,621320.6k $26.0m $26.0m 0.03% Added +7.6k +7,571
28 BANK OF MONTREAL /CAN/ 0.01% of their portfolio TORONTO, A6 312,022312.0k $25.3m $25.3m 0.01% Reduced -20.7k -20,743
29 Robeco Institutional Asset Management B.V. 0.05% of their portfolio ROTTERDAM, P7 292,332292.3k $23.7m $23.7m 0.05% Added +251.0k +251,019
30 Prospect Capital Advisors, LLC 9.55% of their portfolio Sausalito, CA 279,600279.6k $22.6m $22.6m 9.55% Added +2.2k +2,200
31 TWO SIGMA INVESTMENTS, LP 0.05% of their portfolio NEW YORK, NY 278,597278.6k $22.6m $22.6m 0.05% Added +84.4k +84,367
32 OBERWEIS ASSET MANAGEMENT INC/ 1.38% of their portfolio LISLE, IL 277,300277.3k $22.5m $22.5m 1.38% Added +59.9k +59,900
33 AIGH Capital Management LLC 10.87% of their portfolio BALTIMORE, MD 275,000275.0k $22.3m $22.3m 10.87% New
34 CITADEL ADVISORS LLC 0.02% of their portfolio MIAMI, FL 274,637274.6k $22.2m $22.2m 0.02% Reduced -46.7k -46,744
35 NEUBERGER BERMAN GROUP LLC 0.02% of their portfolio NEW YORK, NY 265,659265.7k $21.5m $21.5m 0.02% Added +159.6k +159,645
36 Hood River Capital Management LLC 0.44% of their portfolio PALM BEACH GARDENS, FL 261,857261.9k $21.2m $21.2m 0.44% New
37 LMR Partners LLP 0.42% of their portfolio LONDON, X0 240,000240.0k $19.4m $19.4m 0.42% Reduced -110.0k -110,000
38 D. E. Shaw & Co., Inc. 0.03% of their portfolio New York, NY 227,279227.3k $18.4m $18.4m 0.03% Reduced -112.0k -112,048
39 CANADA PENSION PLAN INVESTMENT BOARD 0.02% of their portfolio TORONTO ONTARIO, A6 219,500219.5k $17.8m $17.8m 0.02% Added +16.0k +16,000
40 EASTERLY INVESTMENT PARTNERS LLC 1.56% of their portfolio BEVERLY, MA 219,264219.3k $17.8m $17.8m 1.56% Reduced -27.1k -27,133
41 KENNEDY CAPITAL MANAGEMENT LLC 0.37% of their portfolio ST LOUIS, MO 213,214213.2k $17.3m $17.3m 0.37% Reduced -7.7k -7,692
42 NEUMEIER POMA INVESTMENT COUNSEL LLC 1.58% of their portfolio CARMEL, CA 212,945212.9k $17.2m $17.2m 1.58% New
43 Taconic Capital Advisors LP 1.42% of their portfolio NEW YORK, NY 210,000210.0k $17.0m $17.0m 1.42% Reduced -30.0k -30,000
44 TWO SIGMA ADVISERS, LP 0.04% of their portfolio NEW YORK, NY 203,281203.3k $16.5m $16.5m 0.04% Added +40.2k +40,200
45 Granahan Investment Management, LLC 0.60% of their portfolio WALTHAM, MA 185,608185.6k $15.0m $15.0m 0.60% Reduced -30.1k -30,092
46 Portolan Capital Management, LLC 1.14% of their portfolio BOSTON, MA 170,246170.2k $13.8m $13.8m 1.14% Added +10.3k +10,283
47 G2 Investment Partners Management LLC 3.51% of their portfolio New York, NY 166,847166.8k $13.5m $13.5m 3.51% Added +75.7k +75,692
48 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.04% of their portfolio TORONTO, A6 160,500160.5k $13.0m $13.0m 0.04% Added +81.8k +81,800
49 F/m Investments LLC 0.46% of their portfolio WASHINGTON, DC 157,032157.0k $12.7m $12.7m 0.46% New
50 Penn Capital Management Company, LLC 1.18% of their portfolio PHILADELPHIA, PA 152,821152.8k $12.4m $12.4m 1.18% New
51 Polar Asset Management Partners Inc. 0.31% of their portfolio TORONTO, A6 152,100152.1k $12.3m $12.3m 0.31% Reduced -33.4k -33,400
52 SCHWARTZ INVESTMENT COUNSEL INC 0.45% of their portfolio PLYMOUTH, MI 150,000150.0k $12.1m $12.1m 0.45% Unchanged
53 NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio ALBANY, NY 146,596146.6k $11.9m $11.9m 0.02% Added +81.1k +81,100
54 Clearline Capital LP 1.02% of their portfolio NEW YORK, NY 144,369144.4k $11.7m $11.7m 1.02% Reduced -28.4k -28,399
55 ROYCE & ASSOCIATES LP 0.11% of their portfolio New York, NY 142,633142.6k $11.6m $11.6m 0.11% Added +15.4k +15,376
56 Russell Investments Group, Ltd. 0.02% of their portfolio Seattle, WA 137,619137.6k $11.1m $11.1m 0.02% Added +23.2k +23,162
57 Trexquant Investment LP 0.16% of their portfolio STAMFORD, CT 128,402128.4k $10.4m $10.4m 0.16% Added +80.4k +80,435
58 Cubist Systematic Strategies, LLC 0.17% of their portfolio STAMFORD, CT 121,947121.9k $9.9m $9.9m 0.17% Added +42.6k +42,557
59 STATE OF WISCONSIN INVESTMENT BOARD 0.03% of their portfolio MADISON, WI 117,009117.0k $9.5m $9.5m 0.03% Added +107.0k +107,000
60 RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio NEW YORK, NY 113,879113.9k $9.2m $9.2m 0.02% Added +33.6k +33,600
61 CastleKnight Management LP 1.23% of their portfolio New York, NY 113,000113.0k $9.2m $9.2m 1.23% Reduced -46.1k -46,075
62 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 112,075112.1k $9.1m $9.1m 0.00% Reduced -146.8k -146,773
63 SILVERCREST ASSET MANAGEMENT GROUP LLC 0.06% of their portfolio NEW YORK, NY 107,836107.8k $8.7m $8.7m 0.06% Added +1.4k +1,380
64 BlackRock Inc. 0.00% of their portfolio New York, NY 102,162102.2k $8.3m $8.3m 0.00% Reduced -22.9k -22,906
65 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 101,319101.3k $8.2m $8.2m 0.00% Reduced -94.5k -94,532
66 UBS Group AG 0.00% of their portfolio ZURICH, V8 93,30193.3k $7.6m $7.6m 0.00% Reduced -164.2k -164,161
67 WATER ISLAND CAPITAL LLC 0.79% of their portfolio NEW YORK, NY 92,09792.1k $7.5m $7.5m 0.79% Reduced -150.7k -150,695
68 Walleye Capital LLC 0.08% of their portfolio NEW YORK, NY 90,90290.9k $7.4m $7.4m 0.08% Added +40.7k +40,734
69 MARSHALL WACE, LLP 0.01% of their portfolio LONDON, X0 90,31790.3k $7.3m $7.3m 0.01% Reduced -15.3k -15,252
70 Westchester Capital Management, LLC 0.31% of their portfolio VALHALLA, NY 90,30090.3k $7.3m $7.3m 0.31% New
71 Janney Montgomery Scott LLC 0.02% of their portfolio PHILADELPHIA, PA 85,35785.4k $6.9m $6.9m 0.02% Added +1.7k +1,694
72 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 81,34181.3k $6.6m $6.6m 0.00% Reduced -2.1k -2,123
73 BOOTHBAY FUND MANAGEMENT, LLC 0.20% of their portfolio NEW YORK, NY 78,63878.6k $6.4m $6.4m 0.20% Added +13.4k +13,432
74 CAXTON ASSOCIATES LP 0.24% of their portfolio NEW YORK, NY 76,89976.9k $6.2m $6.2m 0.24% Reduced -8.5k -8,508
75 Qube Research & Technologies Ltd 0.01% of their portfolio LONDON, X0 74,88074.9k $6.1m $6.1m 0.01% Added +61.0k +61,044
76 Point72 Asset Management, L.P. 0.02% of their portfolio STAMFORD, CT 72,20072.2k $5.8m $5.8m 0.02% Reduced -36.1k -36,100
77 CAPITAL FUND MANAGEMENT S.A. 0.07% of their portfolio PARIS, I0 71,58171.6k $5.8m $5.8m 0.07% Unchanged
78 Alberta Investment Management Corp 0.06% of their portfolio EDMONTON, A0 70,80070.8k $5.7m $5.7m 0.06% Unchanged
79 Ramirez Asset Management, Inc. 1.12% of their portfolio NEW YORK, NY 67,85667.9k $5.5m $5.5m 1.12% Reduced -3.7k -3,651
80 HARBOR CAPITAL ADVISORS, INC. 0.40% of their portfolio CHICAGO, IL 65,56665.6k $5.3m $5.3m 0.40% Added +48.0k +48,015
81 272 Capital LP 2.65% of their portfolio DALLAS, TX 65,29965.3k $5.3m $5.3m 2.65% Reduced -24.0k -24,034
82 Resolute Capital Asset Partners LLC 3.03% of their portfolio DENVER, CO 65,00065.0k $5.3m $5.3m 3.03% Added +20.0k +20,000
83 Crestline Management, L.P. 0.40% of their portfolio FORT WORTH, TX 63,69663.7k $5.2m $5.2m 0.40% Reduced -16.3k -16,304
84 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 60,67060.7k $4.9m $4.9m 0.00% Added +3.3k +3,349
85 Apis Capital Advisors, LLC 3.47% of their portfolio New York, NY 58,00058.0k $4.7m $4.7m 3.47% New
86 SEI INVESTMENTS CO 0.01% of their portfolio OAKS, PA 56,29656.3k $4.6m $4.6m 0.01% Added +257 +257
87 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 55,31255.3k $4.5m $4.5m 0.00% Added +5.0k +4,963
88 MACQUARIE GROUP LTD 0.01% of their portfolio Sydney, NSW 2000, C3 54,16254.2k $4.4m $4.4m 0.01% Added +51.6k +51,612
89 Jump Financial, LLC 0.08% of their portfolio Chicago, IL 50,81250.8k $4.1m $4.1m 0.08% Added +25.0k +24,981
90 NATIONAL BANK OF CANADA /FI/ 0.01% of their portfolio MONTREAL, A8 47,15047.1k $3.8m $3.8m 0.01% Added +46.4k +46,400
91 Roubaix Capital, LLC 2.40% of their portfolio DENVER, CO 46,88946.9k $3.8m $3.8m 2.40% Added +1.2k +1,157
92 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 46,23146.2k $3.7m $3.7m 0.00% Added +40.2k +40,202
93 Employees Retirement System of Texas 0.03% of their portfolio AUSTIN, TX 45,96446.0k $3.7m $3.7m 0.03% Unchanged
94 NORGES BANK 0.00% of their portfolio OSLO, Q8 43,54443.5k $3.5m $3.5m 0.00% Not comparable
95 RENAISSANCE GROUP LLC 0.14% of their portfolio Covington, KY 43,34543.3k $3.5m $3.5m 0.14% Added +935 +935
96 Skylands Capital, LLC 0.44% of their portfolio Milwaukee, WI 38,40038.4k $3.1m $3.1m 0.44% Reduced -500 -500
97 Cinctive Capital Management LP 0.16% of their portfolio New York, NY 36,26436.3k $2.9m $2.9m 0.16% Added +8.8k +8,773
98 Walleye Trading LLC 0.06% of their portfolio NEW YORK, NY 35,86835.9k $2.9m $2.9m 0.06% Added +2.7k +2,708
99 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 35,69535.7k $2.9m $2.9m 0.00% Added +711 +711
100 Aristides Capital LLC 0.58% of their portfolio LOUISVILLE, KY 34,00034.0k $2.8m $2.8m 0.58% New