Vault-13

SILICON MOTION TECHNOLOGY CO SIMO

SPONSORED ADR · ADR · CUSIP 82706C108 · ISIN US82706C1080

American-Taiwanese electronics technology company

198 institutional holders +0 vs Q4 2022
23,326,39523.3m shares reported held*
$1.6bnreported value*
29 new 71 added 68 reduced 30 sold out net sold ≈ $52.9m (-1.5m 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 ($4.2m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $67.59. Options: 13 managers hold calls ($166.8m notional), 16 hold puts ($207.9m).

Trends to Q1 2023

Institutional holders

Managers reporting a position, each quarter

0100200300Q3 22: 202Q4 22: 198Q1 23: 198198Q3 22Q4 22Q1 23
Numbers
QuarterHolders
Q3 2022202
Q4 2022198
Q1 2023198

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 outQ1 23
Numbers
QuarterBought or addedCut or sold out
Q4 202211098
Q1 202310098

Calls vs puts

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

CallsPuts
$0$100m$200m$300mQ3 22 calls: $44.5mQ3 22 puts: $66.7mQ3 22P/C 1.50Q4 22 calls: $58.1mQ4 22 puts: $172.0mQ4 22P/C 2.96Q1 23 calls: $166.8mQ1 23 puts: $207.9mQ1 23P/C 1.25
Numbers
QuarterCallsPutsP/C
Q3 2022$44.5m$66.7m1.50
Q4 2022$58.1m$172.0m2.96
Q1 2023$166.8m$207.9m1.25

Biggest buyers

HAWK RIDGE CAPITAL MANAGEMENT LP New +665,198+665.2k
BLUEFIN CAPITAL MANAGEMENT, LLC New +647,091+647.1k
CITIGROUP INC Added +488,195+488.2k
Melqart Asset Management (UK) Ltd Added +317,371+317.4k
Westchester Capital Management, LLC Added +231,531+231.5k
MARSHALL WACE, LLP Added +231,332+231.3k
RENAISSANCE TECHNOLOGIES LLC Added +214,800+214.8k
HAP Trading, LLC New +200,836+200.8k
Balyasny Asset Management L.P. Added +149,541+149.5k
P SCHOENFELD ASSET MANAGEMENT LP Added +142,009+142.0k

Biggest sellers

GOLDMAN SACHS GROUP INC Reduced -1,393,319-1.4m
Antara Capital LP Sold out -949,927-949.9k
TIG Advisors, LLC Sold out -518,627-518.6k
BAILLIE GIFFORD & CO Sold out -414,300-414.3k
RAMIUS ADVISORS LLC Reduced -309,565-309.6k
BANK OF AMERICA CORP /DE/ Reduced -292,843-292.8k
HBK INVESTMENTS L P Reduced -269,819-269.8k
FARALLON CAPITAL MANAGEMENT, L.L.C. Reduced -226,510-226.5k
Sand Grove Capital Management LLP Reduced -196,043-196.0k
TUDOR INVESTMENT CORP ET AL Reduced -195,944-195.9k

Biggest calls

Antara Capital LP New $94.8m1.4m shares
Maven Securities LTD Added $23.7m361.2k shares
HBK INVESTMENTS L P New $19.7m300.0k shares
P SCHOENFELD ASSET MANAGEMENT LP New $6.6m100.0k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $6.6m100.0k shares
GROUP ONE TRADING LLC Added $6.5m98.9k shares
Hiddenite Capital Partners LP New $4.9m75.0k shares
Walleye Trading LLC Added $2.7m41.4k shares
SIMPLEX TRADING, LLC Reduced $1.2m17.8k shares
Belvedere Trading LLC Added $216.2k3.3k shares

Biggest puts

Antara Capital LP Reduced $73.1m1.1m shares
GROUP ONE TRADING LLC Added $42.6m650.5k shares
CITIGROUP INC Added $39.3m600.0k shares
Maven Securities LTD New $23.6m359.9k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $10.2m155.6k shares
SIMPLEX TRADING, LLC Reduced $5.0m76.2k shares
Walleye Trading LLC Reduced $4.5m68.2k shares
BLUEFIN CAPITAL MANAGEMENT, LLC Added $4.3m738.9k shares
HAP Trading, LLC Added $1.4m336.0k shares
JPMORGAN CHASE & CO New $1.0m16.0k 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 Q1 2023

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 Q1 2023.

Holders, Q1 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 MORGAN STANLEY 0.01% of their portfolio NEW YORK, NY 1,186,2421.2m $77.7m $77.7m 0.01% Added +66.8k +66,771
2 OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 1.82% of their portfolio CHICAGO, IL 1,166,6151.2m $76.4m $76.4m 1.82% Added +9.6k +9,587
3 MILLENNIUM MANAGEMENT LLC 0.08% of their portfolio NEW YORK, NY 1,107,8601.1m $72.6m $72.6m 0.08% Reduced -28.0k -28,017
4 Melqart Asset Management (UK) Ltd 4.79% of their portfolio London, X0 979,212979.2k $64.2m $64.2m 4.79% Added +317.4k +317,371
5 Sand Grove Capital Management LLP 8.72% of their portfolio LONDON, X0 865,012865.0k $56.7m $56.7m 8.72% Reduced -196.0k -196,043
6 FARALLON CAPITAL MANAGEMENT, L.L.C. 0.28% of their portfolio SAN FRANCISCO, CA 705,000705.0k $46.2m $46.2m 0.28% Reduced -226.5k -226,510
7 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.10% of their portfolio Boston, MA 682,885682.9k $44.7m $44.7m 0.10% Reduced -113.7k -113,652
8 HAWK RIDGE CAPITAL MANAGEMENT LP 2.47% of their portfolio LOS ANGELES, CA 665,198665.2k $43.6m $43.6m 2.47% New
9 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 664,051664.1k $43.6m $43.6m 0.00% Added +17.9k +17,927
10 BLUEFIN CAPITAL MANAGEMENT, LLC 5.97% of their portfolio NEW YORK, NY 647,091647.1k $42.4m $42.4m 5.97% New
11 CITIGROUP INC 0.06% of their portfolio NEW YORK, NY 638,152638.2k $41.8m $41.8m 0.06% Added +488.2k +488,195
12 MARSHALL WACE, LLP 0.10% of their portfolio LONDON, X0 632,521632.5k $41.4m $41.4m 0.10% Added +231.3k +231,332
13 Grantham, Mayo, Van Otterloo & Co. LLC 0.21% of their portfolio Boston, MA 624,844624.8k $40.9m $40.9m 0.21% Added +1.4k +1,383
14 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 561,931561.9k $36.8m $36.8m 0.00% Reduced -292.8k -292,843
15 Balyasny Asset Management L.P. 0.11% of their portfolio Chicago, IL 522,561522.6k $34.2m $34.2m 0.11% Added +149.5k +149,541
16 Erste Asset Management GmbH 0.63% of their portfolio VIENNA, C4 504,000504.0k $33.0m $33.0m 0.63% Added +4.0k +4,000
17 SYSTEMATIC FINANCIAL MANAGEMENT LP 1.03% of their portfolio TEANECK, NJ 481,348481.3k $31.5m $31.5m 1.03% Reduced -19.0k -18,957
18 GOLDMAN SACHS GROUP INC 0.01% of their portfolio NEW YORK, NY 451,311451.3k $29.6m $29.6m 0.01% Reduced -1.4m -1,393,319
19 AQR Arbitrage LLC 0.90% of their portfolio Greenwich, CT 446,246446.2k $29.2m $29.2m 0.90% Reduced -42.7k -42,668
20 ALPINE ASSOCIATES MANAGEMENT INC. 1.40% of their portfolio PALM BEACH, FL 399,466399.5k $26.2m $26.2m 1.40% Reduced -600 -600
21 HERALD INVESTMENT MANAGEMENT Ltd 5.60% of their portfolio LONDON, X0 384,906384.9k $25.2m $25.2m 5.60% Unchanged
22 WATER ISLAND CAPITAL LLC 1.86% of their portfolio NEW YORK, NY 350,981351.0k $23.0m $23.0m 1.86% Unchanged
23 LAZARD ASSET MANAGEMENT LLC 0.03% of their portfolio NEW YORK, NY 345,257345.3k $22.6m $22.6m 0.03% Added +12.3k +12,319
24 Segantii Capital Management Ltd 0.91% of their portfolio HONG KONG, K3 310,000310.0k $20.3m $20.3m 0.91% Reduced -100.0k -100,000
25 Westchester Capital Management, LLC 0.63% of their portfolio VALHALLA, NY 304,125304.1k $19.9m $19.9m 0.63% Added +231.5k +231,531
26 RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio NEW YORK, NY 288,679288.7k $18.9m $18.9m 0.03% Added +214.8k +214,800
27 M&G INVESTMENT MANAGEMENT LTD 0.13% of their portfolio London, X0 286,715286.7k $18.9m $18.9m 0.13% Added +9.9k +9,904
28 HBK INVESTMENTS L P 0.62% of their portfolio DALLAS, TX 260,181260.2k $17.0m $17.0m 0.62% Reduced -269.8k -269,819
29 STATE OF WISCONSIN INVESTMENT BOARD 0.05% of their portfolio MADISON, WI 258,670258.7k $16.9m $16.9m 0.05% Added +3.2k +3,170
30 P SCHOENFELD ASSET MANAGEMENT LP 1.57% of their portfolio NEW YORK, NY 227,009227.0k $14.9m $14.9m 1.57% Added +142.0k +142,009
31 ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio NASHVILLE, TN 218,837218.8k $14.3m $14.3m 0.01% Reduced -19.1k -19,122
32 UBS Group AG 0.01% of their portfolio ZURICH, V8 217,083217.1k $14.2m $14.2m 0.01% Added +22.0k +21,957
33 CITADEL ADVISORS LLC 0.02% of their portfolio MIAMI, FL 212,701212.7k $13.9m $13.9m 0.02% Added +118.5k +118,501
34 Prospect Capital Advisors, LLC 6.21% of their portfolio Sausalito, CA 209,550209.6k $13.7m $13.7m 6.21% Added +17.6k +17,650
35 HAP Trading, LLC 3.19% of their portfolio NEW YORK, NY 200,836200.8k $13.2m $13.2m 3.19% New
36 ExodusPoint Capital Management, LP 0.15% of their portfolio NEW YORK, NY 195,800195.8k $12.8m $12.8m 0.15% Added +95.0k +94,999
37 Berry Street Capital Management LLP 4.31% of their portfolio LONDON, X0 187,500187.5k $12.3m $12.3m 4.31% Added +100.0k +100,000
38 Qube Research & Technologies Ltd 0.07% of their portfolio LONDON, X0 185,961186.0k $12.2m $12.2m 0.07% Added +66.7k +66,723
39 Fort Baker Capital Management LP 2.52% of their portfolio Larkspur, CA 178,150178.2k $11.7m $11.7m 2.52% Added +102.7k +102,739
40 Bahl & Gaynor LLC 0.06% of their portfolio CINCINNATI, OH 176,265176.3k $11.5m $11.5m 0.06% Added +22.0k +21,970
41 GROUP ONE TRADING LLC 0.49% of their portfolio CHICAGO, IL 158,529158.5k $10.4m $10.4m 0.49% Added +114.7k +114,698
42 EASTERLY INVESTMENT PARTNERS LLC 0.87% of their portfolio BEVERLY, MA 150,278150.3k $9.8m $9.8m 0.87% Reduced -3.1k -3,110
43 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio BALA CYNWYD, PA 144,640144.6k $9.5m $9.5m 0.01% Added +6.0k +6,002
44 272 Capital LP 3.86% of their portfolio DALLAS, TX 142,300142.3k $9.3m $9.3m 3.86% Added +100.8k +100,800
45 KENNEDY CAPITAL MANAGEMENT LLC 0.27% of their portfolio ST LOUIS, MO 140,431140.4k $9.2m $9.2m 0.27% Reduced -14.6k -14,630
46 FMR LLC 0.00% of their portfolio BOSTON, MA 138,400138.4k $9.1m $9.1m 0.00% Added +133.2k +133,221
47 TWO SIGMA ADVISERS, LP 0.02% of their portfolio NEW YORK, NY 129,781129.8k $8.5m $8.5m 0.02% Added +70.8k +70,800
48 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio BOSTON, MA 121,020121.0k $7.9m $7.9m 0.01% Added +116.0k +116,012
49 PEREGRINE CAPITAL MANAGEMENT LLC 0.23% of their portfolio MINNEAPOLIS, MN 119,306119.3k $7.8m $7.8m 0.23% Added +3.8k +3,811
50 BOOTHBAY FUND MANAGEMENT, LLC 0.20% of their portfolio NEW YORK, NY 115,728115.7k $7.6m $7.6m 0.20% Added +3.8k +3,797
51 ACADIAN ASSET MANAGEMENT LLC 0.03% of their portfolio Boston, MA 114,398114.4k $7.5m $7.5m 0.03% Reduced -32.8k -32,835
52 DLD Asset Management, LP 0.73% of their portfolio NEW YORK, NY 111,000111.0k $7.3m $7.3m 0.73% Reduced -14.0k -14,000
53 RICE HALL JAMES & ASSOCIATES, LLC 0.40% of their portfolio San Diego, CA 107,421107.4k $7.0m $7.0m 0.40% Reduced -8.4k -8,445
54 Verition Fund Management LLC 0.11% of their portfolio GREENWICH, CT 103,328103.3k $6.8m $6.8m 0.11% Added +36.4k +36,360
55 Weiss Asset Management LP 0.53% of their portfolio BOSTON, MA 102,712102.7k $6.7m $6.7m 0.53% Added +18.6k +18,630
56 HEARTLAND ADVISORS INC 0.40% of their portfolio MILWAUKEE, WI 100,000100.0k $6.6m $6.6m 0.40% New
57 Apis Capital Advisors, LLC 6.00% of their portfolio New York, NY 86,00086.0k $5.6m $5.6m 6.00% Added +900 +900
58 THOMAS WHITE INTERNATIONAL LTD 1.11% of their portfolio CHICAGO, IL 80,44380.4k $5.3m $5.3m 1.11% Reduced -2.8k -2,805
59 Boussard & Gavaudan Investment Management LLP 0.49% of their portfolio London, X0 79,14679.1k $5.2m $5.2m 0.49% New
60 TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 76,11076.1k $5.0m $5.0m 0.01% Added +36.0k +36,010
61 LMR Partners LLP 0.09% of their portfolio LONDON, X0 74,45174.5k $4.9m $4.9m 0.09% Reduced -17.5k -17,500
62 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.03% of their portfolio TORONTO, A6 73,10073.1k $4.8m $4.8m 0.03% Unchanged
63 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 72,02272.0k $4.7m $4.7m 0.00% Reduced -1.2k -1,176
64 SG Americas Securities, LLC 0.06% of their portfolio NEW YORK, NY 70,99171.0k $4.7m $4.7m 0.06% Reduced -72.8k -72,808
65 Brookfield Corp /ON/ 0.02% of their portfolio TORONTO, A6 70,00070.0k $4.6m $4.6m 0.02% Reduced -15.6k -15,556
66 NAPLES GLOBAL ADVISORS, LLC 0.56% of their portfolio NAPLES, FL 68,82868.8k $4.5m $4.5m 0.56% Added +1.6k +1,560
67 Janney Montgomery Scott LLC 0.02% of their portfolio PHILADELPHIA, PA 67,39867.4k $4.4m $4.4m 0.02% Added +1.1k +1,050
68 ABN AMRO INVESTMENT SOLUTIONS 0.08% of their portfolio PARIS CEDEX 008, I0 62,47262.5k $4.1m $4.1m 0.08% First filing
69 PRELUDE CAPITAL MANAGEMENT, LLC 0.28% of their portfolio NEW YORK, NY 62,27262.3k $4.1m $4.1m 0.28% Reduced -11.2k -11,244
70 NATIXIS 0.04% of their portfolio PARIS, I0 62,10062.1k $4.1m $4.1m 0.04% Reduced -158.8k -158,798
71 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 60,52060.5k $4.0m $4.0m 0.00% Reduced -895 -895
72 Nokomis Capital, L.L.C. 1.60% of their portfolio DALLAS, TX 60,07360.1k $3.9m $3.9m 1.60% Unchanged
73 Man Group plc 0.01% of their portfolio LONDON, X0 59,10859.1k $3.9m $3.9m 0.01% New
74 THOMPSON SIEGEL & WALMSLEY LLC 0.06% of their portfolio RICHMOND, VA 53,96554.0k $3.5m $3.5m 0.06% New
75 MASO CAPITAL PARTNERS Ltd 2.25% of their portfolio HONG KONG, K3 51,81451.8k $3.4m $3.4m 2.25% Added +15.0k +15,000
76 Virtus Family Office LLC 6.78% of their portfolio EL PASO, TX 50,70050.7k $3.3m $3.3m 6.78% Added +2.2k +2,193
77 Perpetual Ltd 0.03% of their portfolio SYDNEY, NEW SOUTH WALES, C3 50,55050.5k $3.3m $3.3m 0.03% First filing
78 Alpine Global Management, LLC 1.27% of their portfolio NEW YORK, NY 50,00050.0k $3.3m $3.3m 1.27% Reduced -25.0k -25,000
79 Force Hill Capital Management LP 0.80% of their portfolio New York, NY 46,90046.9k $3.1m $3.1m 0.80% New
80 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 46,77346.8k $3.1m $3.1m 0.00% Added +2.0k +1,977
81 RAMIUS ADVISORS LLC 3.21% of their portfolio NEW YORK, NY 44,46544.5k $2.9m $2.9m 3.21% Reduced -309.6k -309,565
82 Kapitalo Investimentos Ltda 0.89% of their portfolio SAO PAULO, D5 41,23941.2k $2.7m $2.7m 0.89% New
83 Hodges Capital Management Inc. 0.38% of their portfolio DALLAS, TX 41,12741.1k $4.7m $4.7m 0.38% Reduced -21.7k -21,693
84 Ovata Capital Management Ltd 1.15% of their portfolio HONG KONG, K3 41,10941.1k $2.7m $2.7m 1.15% Reduced -53.1k -53,062
85 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 40,19740.2k $2.6m $2.6m 0.00% Reduced -1.7k -1,671
86 Legal & General Group Plc 0.00% of their portfolio London, X0 37,25937.3k $2.4m $2.4m 0.00% Added +649 +649
87 Robeco Institutional Asset Management B.V. 0.01% of their portfolio ROTTERDAM, P7 37,08837.1k $2.4m $2.4m 0.01% Unchanged
88 OAK ASSOCIATES LTD /OH/ 0.20% of their portfolio AKRON, OH 36,53336.5k $2.4m $2.4m 0.20% Unchanged
89 J.P. Morgan Private Wealth Advisors LLC 0.00% of their portfolio SAN FRANCISCO, CA 35,62435.6k $2.3m $2.3m 0.00% Reduced -4.0k -3,963
90 Handelsbanken Fonder AB 0.01% of their portfolio STOCKHOLM, V7 35,50035.5k $2.3m $2.3m 0.01% Added +1.6k +1,600
91 Cerity Partners LLC 0.01% of their portfolio NEW YORK, NY 35,42835.4k $2.3m $2.3m 0.01% Reduced -705 -705
92 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 34,06034.1k $2.2m $2.2m 0.00% Added +281 +281
93 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 33,97634.0k $2.2m $2.2m 0.00% Added +13.8k +13,767
94 Aristides Capital LLC 1.39% of their portfolio LOUISVILLE, KY 33,65633.7k $2.2m $2.2m 1.39% Unchanged
95 Millrace Asset Group, Inc. 2.49% of their portfolio BERWYN, PA 32,58332.6k $2.1m $2.1m 2.49% Added +376 +376
96 Calamos Advisors LLC 0.01% of their portfolio NAPERVILLE, IL 32,13532.1k $2.1m $2.1m 0.01% Added +19.1k +19,135
97 Squarepoint Ops LLC 0.01% of their portfolio NEW YORK, NY 31,98532.0k $2.1m $2.1m 0.01% New
98 Cullen Capital Management, LLC 0.02% of their portfolio New York, NY 31,65931.7k $2.1m $2.1m 0.02% Added +2.4k +2,419
99 Trium Capital LLP 0.86% of their portfolio LONDON, X0 31,22531.2k $2.0m $2.0m 0.86% Added +12.7k +12,744
100 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 30,58430.6k $2.0m $2.0m 0.00% Added +2.0k +1,971