Vault-13

MAGNACHIP SEMICONDUCTOR CORP MX

COM · Common Stock · CUSIP 55933J203 · ISIN US55933J2033

Magnachip is a designer and manufacturer of analog and mixed-signal semiconductor platform solutions for communications, IoT, consumer, computing, industrial and automotive applications.

119 institutional holders -10 vs Q3 2022
31,074,42731.1m shares reported held*
71.4% of all shares outstanding*
$291.8mreported value*
20 new 42 added 31 reduced 28 sold out net bought ≈ $1.6m (+129.8k 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 ($325.4k this quarter). Holder counts are more reliable. Shares outstanding: 43.5m as of 2023-02-10, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $9.39. Options: 17 managers hold calls ($21.5m notional), 7 hold puts ($2.2m).

Trends to Q4 2022

Institutional holders

Managers reporting a position, each quarter

050100150Q3 22: 129Q4 22: 119119Q3 22Q4 22
Numbers
QuarterHolders
Q3 2022129
Q4 2022119

Calls vs puts

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

CallsPuts
$0$10m$20m$30mQ3 22 calls: $20.4mQ3 22 puts: $7.1mQ3 22P/C 0.35Q4 22 calls: $21.5mQ4 22 puts: $2.2mQ4 22P/C 0.10
Numbers
QuarterCallsPutsP/C
Q3 2022$20.4m$7.1m0.35
Q4 2022$21.5m$2.2m0.10

Biggest buyers

ALLIANCEBERNSTEIN L.P. Added +967,906+967.9k
THOMPSON SIEGEL & WALMSLEY LLC New +941,365+941.4k
BRIGADE CAPITAL MANAGEMENT, LP Added +525,500+525.5k
SYSTEMATIC FINANCIAL MANAGEMENT LP Added +440,416+440.4k
GOLDMAN SACHS GROUP INC Added +413,047+413.0k
BOOTHBAY FUND MANAGEMENT, LLC Added +242,773+242.8k
AQR CAPITAL MANAGEMENT LLC Added +214,012+214.0k
BRIDGEWAY CAPITAL MANAGEMENT, LLC Added +165,000+165.0k
TWO SIGMA INVESTMENTS, LP Added +162,440+162.4k
TWO SIGMA ADVISERS, LP Added +150,900+150.9k

Biggest sellers

MANGROVE PARTNERS IM, LLC Sold out -1,105,805-1.1m
AMERIPRISE FINANCIAL INC Reduced -645,231-645.2k
Philosophy Capital Management LLC Sold out -527,522-527.5k
FMR LLC Sold out -307,375-307.4k
MILLENNIUM MANAGEMENT LLC Reduced -286,286-286.3k
K2 PRINCIPAL FUND, L.P. Sold out -266,148-266.1k
NORGES BANK Sold out -249,300-249.3k
BANK OF AMERICA CORP /DE/ Reduced -209,126-209.1k
Verition Fund Management LLC Sold out -201,818-201.8k
Clearline Capital LP Reduced -195,862-195.9k

Biggest calls

CITADEL ADVISORS LLC Reduced $5.7m606.3k shares
INTRINSIC EDGE CAPITAL MANAGEMENT LLC Added $5.6m600.0k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $2.7m291.3k shares
GROUP ONE TRADING LLC Reduced $2.3m243.4k shares
JANE STREET GROUP, LLC Reduced $1.5m164.0k shares
Caption Management, LLC Added $1.1m121.9k shares
SIMPLEX TRADING, LLC Reduced $634.0k67.6k shares
WOLVERINE TRADING, LLC Added $618.0k65.8k shares
STATE OF WISCONSIN INVESTMENT BOARD New $609.4k64.9k shares
K2 PRINCIPAL FUND, L.P. Reduced $445.1k47.4k shares

Biggest puts

GROUP ONE TRADING LLC Reduced $1.6m173.2k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $376.5k40.1k shares
WOLVERINE TRADING, LLC New $100.0k10.7k shares
CITADEL ADVISORS LLC Reduced $32.9k3.5k shares
SIMPLEX TRADING, LLC Reduced $15.0k1.7k shares
Cutler Group LLC / CA Reduced $4.0k5.0k 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
Byreforge LLC 13D · may seek influence no change · filed 2026-01-20
Stated purposeItem 4 is hereby amended to add the following: On January 14, 2026, the Board appointed Cristiano Amoruso as a director of the Issuer to serve until the Issuer's 2026 Annual Meeting of Stockholders or until his successor has been duly elected and qualified, or until his earlier death, resignation, retirement, disqualification or removal. Mr. Amoruso has also been appointed to each of the Audit Committee, the Compensation Committee and the Nominating and Corporate Governance Committee of the Board. Full filing
8.5% no change 3.1m≈ $14.5m 2026-01-20
TORO 18 HOLDINGS LLC 13G · passive investor new · filed 2025-01-02 8.0% new 3.0m≈ $14.0m 2025-01-02

Fell to 5% or below in the last year: IMMERSION CORP (4.1%, 2026-03-20), Clearline Capital LP (4.1%, 2026-02-17), SYSTEMATIC FINANCIAL MANAGEMENT LP (0.0%, 2026-02-11)

Insider purchases and sales in Q4 2022

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.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
202Q1 21: 0 buyingQ1 21: 0 sellingQ2 21: 0 buyingQ2 21: 0 sellingQ2 21Q3 21: 0 buyingQ3 21: 0 sellingQ4 21: 0 buyingQ4 21: 0 sellingQ4 21Q1 22: 2 buyingQ1 22: 1 sellingQ2 22: 0 buyingQ2 22: 0 sellingQ2 22Q3 22: 0 buyingQ3 22: 0 sellingQ4 22: 0 buyingQ4 22: 0 sellingQ4 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—0——
Q1 20222$150.2k1$367.2k—
Q2 20220—0——
Q3 20220—0——
Q4 20220—0——

None reported in Q4 2022.

Holders, Q4 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio NASHVILLE, TN 3,190,9063.2m $30.0m $30.0m 0.01% Added +967.9k +967,906
2 Toronado Partners, LLC 9.69% of their portfolio SAN FRANCISCO, CA 2,692,2612.7m $25.3m $25.3m 9.69% Added +118.8k +118,836
3 OAKTREE CAPITAL MANAGEMENT LP 0.23% of their portfolio LOS ANGELES, CA 2,300,0002.3m $21.6m $21.6m 0.23% Unchanged
4 SYSTEMATIC FINANCIAL MANAGEMENT LP 0.67% of their portfolio TEANECK, NJ 2,187,4522.2m $20.5m $20.5m 0.67% Added +440.4k +440,416
5 Rubric Capital Management LP 0.80% of their portfolio NEW YORK, NY 1,950,1002.0m $18.3m $18.3m 0.80% Unchanged
6 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 1,278,3931.3m $12.0m $12.0m 0.00% Added +14.1k +14,083
7 Clearline Capital LP 1.90% of their portfolio NEW YORK, NY 1,132,4161.1m $10.6m $10.6m 1.90% Reduced -195.9k -195,862
8 THOMPSON SIEGEL & WALMSLEY LLC 0.14% of their portfolio RICHMOND, VA 941,365941.4k $8.8m $8.8m 0.14% New
9 Quinn Opportunity Partners LLC 1.01% of their portfolio CHARLOTTESVILLE, VA 860,867860.9k $8.1m $8.1m 1.01% Reduced -10.0k -10,000
10 Kite Lake Capital Management (UK) LLP 5.75% of their portfolio LONDON, X0 741,000741.0k $7.0m $7.0m 5.75% Unchanged
11 STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio MADISON, WI 689,388689.4k $6.5m $6.5m 0.02% Reduced -2.7k -2,727
12 S SQUARED TECHNOLOGY, LLC 4.22% of their portfolio RYE, NY 663,620663.6k $6.2m $6.2m 4.22% Unchanged
13 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 627,682627.7k $5.9m $5.9m 0.00% Added +52.0k +52,042
14 WATER ISLAND CAPITAL LLC 0.49% of their portfolio NEW YORK, NY 613,228613.2k $5.8m $5.8m 0.49% Reduced -30.1k -30,139
15 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 603,981604.0k $5.7m $5.7m 0.00% Added +36.2k +36,221
16 BRIGADE CAPITAL MANAGEMENT, LP 2.85% of their portfolio NEW YORK, NY 599,000599.0k $5.6m $5.6m 2.85% Added +525.5k +525,500
17 272 Capital LP 2.24% of their portfolio DALLAS, TX 533,400533.4k $5.0m $5.0m 2.24% Added +112.8k +112,775
18 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 492,137492.1k $4.6m $4.6m 0.00% Added +413.0k +413,047
19 AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio Greenwich, CT 486,180486.2k $4.6m $4.6m 0.01% Added +214.0k +214,012
20 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 470,885470.9k $4.4m $4.4m 0.00% Reduced -286.3k -286,286
21 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 436,981437.0k $4.1m $4.1m 0.00% Reduced -645.2k -645,231
22 TWO SIGMA ADVISERS, LP 0.01% of their portfolio NEW YORK, NY 416,138416.1k $3.9m $3.9m 0.01% Added +150.9k +150,900
23 KENNEDY CAPITAL MANAGEMENT LLC 0.10% of their portfolio ST LOUIS, MO 387,880387.9k $3.6m $3.6m 0.10% Reduced -62.6k -62,622
24 BOOTHBAY FUND MANAGEMENT, LLC 0.10% of their portfolio NEW YORK, NY 338,513338.5k $3.2m $3.2m 0.10% Added +242.8k +242,773
25 TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 302,445302.4k $2.8m $2.8m 0.01% Added +162.4k +162,440
26 GABELLI FUNDS LLC 0.02% of their portfolio Rye, NY 284,960285.0k $2.7m $2.7m 0.02% Unchanged
27 BlackRock Inc. 0.00% of their portfolio New York, NY 269,494269.5k $2.5m $2.5m 0.00% Added +4.2k +4,219
28 Man Group plc 0.01% of their portfolio LONDON, X0 269,255269.3k $2.5m $2.5m 0.01% Unchanged
29 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 265,548265.5k $2.5m $2.5m 0.00% Reduced -31.8k -31,760
30 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.06% of their portfolio HOUSTON, TX 255,000255.0k $2.4m $2.4m 0.06% Added +165.0k +165,000
31 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.01% of their portfolio TORONTO, A6 235,900235.9k $2.2m $2.2m 0.01% Unchanged
32 RICE HALL JAMES & ASSOCIATES, LLC 0.13% of their portfolio San Diego, CA 232,211232.2k $2.2m $2.2m 0.13% Reduced -9.7k -9,655
33 SILVERBACK ASSET MANAGEMENT LLC 0.33% of their portfolio DURHAM, NC 220,000220.0k $2.1m $2.1m 0.33% Added +10.0k +10,000
34 Polunin Capital Partners Ltd 0.50% of their portfolio LONDON, X0 211,712211.7k $2.0m $2.0m 0.50% Reduced -1.8k -1,800
35 GABELLI & Co INVESTMENT ADVISERS, INC. 0.33% of their portfolio Rye, NY 163,779163.8k $1.5m $1.5m 0.33% Reduced -39.7k -39,700
36 Kepos Capital LP 0.20% of their portfolio NEW YORK, NY 150,000150.0k $1.4m $1.4m 0.20% Unchanged
37 Fisher Asset Management, LLC 0.00% of their portfolio PLANO, TX 148,401148.4k $1.4m $1.4m 0.00% New
38 J.P. Morgan Private Wealth Advisors LLC 0.00% of their portfolio SAN FRANCISCO, CA 138,301138.3k $1.3m $1.3m 0.00% Added +21.1k +21,141
39 FAIRFAX FINANCIAL HOLDINGS LTD/ CAN 0.03% of their portfolio TORONTO, A6 125,000125.0k $1.2m $1.2m 0.03% Unchanged
40 RENAISSANCE GROUP LLC 0.06% of their portfolio Covington, KY 123,739123.7k $1.2m $1.2m 0.06% Added +32.7k +32,731
41 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 123,089123.1k $1.2m $1.2m 0.00% Added +107.8k +107,802
42 GROUP ONE TRADING LLC 0.04% of their portfolio CHICAGO, IL 123,031123.0k $1.2m $1.2m 0.04% Reduced -3.7k -3,696
43 NATIXIS 0.01% of their portfolio PARIS, I0 122,500122.5k $1.2m $1.2m 0.01% Added +62.5k +62,500
44 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 122,000122.0k $1.1m $1.1m 0.00% Reduced -88.0k -88,000
45 Qube Research & Technologies Ltd 0.01% of their portfolio LONDON, X0 121,395121.4k $1.1m $1.1m 0.01% Added +49.0k +48,975
46 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 121,312121.3k $1.1m $1.1m 0.00% Added +3.1k +3,094
47 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 120,999121.0k $1.1m $1.1m 0.00% Added +66.6k +66,598
48 Yakira Capital Management, Inc. 0.21% of their portfolio Westport, CT 108,700108.7k $1.0m $1.0m 0.21% Unchanged
49 Swiss National Bank 0.00% of their portfolio ZURICH, V8 107,600107.6k $1.0m $1.0m 0.00% Unchanged
50 MIRIA Asset Management Ltd 5.51% of their portfolio ST.JULIANS, O1 98,65098.7k $926.3k $926.3k 5.51% Unchanged
51 CenterBook Partners LP 0.14% of their portfolio GREENWICH, CT 92,98693.0k $873.1k $873.1k 0.14% Reduced -42.0k -41,958
52 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 84,93484.9k $797.5k $797.5k 0.00% Added +46.8k +46,808
53 BLUEFIN CAPITAL MANAGEMENT, LLC 0.14% of their portfolio NEW YORK, NY 83,67483.7k $785.7k $785.7k 0.14% New
54 GREENWOOD CAPITAL ASSOCIATES LLC 0.13% of their portfolio GREENWOOD, SC 81,37681.4k $764.1k $764.1k 0.13% Added +888 +888
55 Orion Porfolio Solutions, LLC 0.01% of their portfolio OMAHA, NE 73,89773.9k $693.9k $693.9k 0.01% Added +49.9k +49,904
56 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 70,32370.3k $660.3k $660.3k 0.00% Reduced -91 -91
57 Centiva Capital, LP 0.05% of their portfolio New York, NY 70,00070.0k $657.3k $657.3k 0.05% Unchanged
58 BCK CAPITAL MANAGEMENT LP 0.62% of their portfolio STAMFORD, CT 63,74263.7k $598.5k $598.5k 0.62% Added +400 +400
59 NORTH RUN CAPITAL, LP 1.36% of their portfolio BOSTON, MA 63,11063.1k $592.6k $592.6k 1.36% Unchanged
60 Cetera Advisors LLC 0.01% of their portfolio DENVER, CO 59,28259.3k $556.7k $556.7k 0.01% Added +5.0k +5,000
61 Alpha Paradigm Partners, LLC 0.23% of their portfolio CHICAGO, IL 58,31358.3k $548.0k $548.0k 0.23% Reduced -4.8k -4,795
62 SIMPLEX TRADING, LLC 0.03% of their portfolio CHICAGO, IL 58,30358.3k $547.0k $547.0k 0.03% New
63 Caption Management, LLC 0.09% of their portfolio OKLAHOMA CITY, OK 57,80857.8k $542.8k $542.8k 0.09% Added +726 +726
64 Sather Financial Group Inc 0.04% of their portfolio Victoria, TX 53,37953.4k $501.2k $501.2k 0.04% Reduced -300 -300
65 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 48,55248.6k $455.9k $455.9k 0.00% Added +14 +14
66 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 46,05446.1k $432.4k $432.4k 0.00% Reduced -209.1k -209,126
67 MACKENZIE FINANCIAL CORP 0.00% of their portfolio TORONTO ONTARIO, A6 43,10043.1k $404.7k $404.7k 0.00% New
68 UBS Group AG 0.00% of their portfolio ZURICH, V8 42,63242.6k $400.3k $400.3k 0.00% Reduced -51.6k -51,587
69 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 39,01639.0k $366.4k $366.4k 0.00% Added +384 +384
70 Ergoteles LLC 0.01% of their portfolio NEW YORK, NY 37,75437.8k $354.5k $354.5k 0.01% Added +21.1k +21,071
71 Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio VANCOUVER, A1 37,40237.4k $351.2k $351.2k 0.00% New
72 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 37,07137.1k $348.1k $348.1k 0.00% Unchanged
73 PDT Partners, LLC 0.05% of their portfolio New York, NY 34,92634.9k $328.0k $328.0k 0.05% New
74 CREDIT SUISSE AG/ 0.00% of their portfolio ZURICH, V8 33,83233.8k $317.7k $317.7k 0.00% Reduced -3.8k -3,759
75 Cubist Systematic Strategies, LLC 0.00% of their portfolio STAMFORD, CT 33,66733.7k $316.1k $316.1k 0.00% New
76 PRELUDE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio NEW YORK, NY 33,45633.5k $314.2k $314.2k 0.02% Reduced -2.0k -2,031
77 Covestor Ltd 0.24% of their portfolio LONDON, X0 31,03531.0k $291.0k $291.0k 0.24% Added +28.0k +27,963
78 Diametric Capital, LP 0.14% of their portfolio BOSTON, MA 30,91430.9k $290.3k $290.3k 0.14% Reduced -23.1k -23,060
79 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 27,84327.8k $261.0k $261.0k 0.00% New
80 TEACHER RETIREMENT SYSTEM OF TEXAS 0.00% of their portfolio AUSTIN, TX 27,27727.3k $256.0k $256.0k 0.00% Reduced -60.9k -60,933
81 Walleye Capital LLC 0.01% of their portfolio NEW YORK, NY 25,51925.5k $239.6k $239.6k 0.01% Added +2.6k +2,622
82 Lynrock Lake LP 0.01% of their portfolio RYE BROOK, NY 23,86923.9k $224.1k $224.1k 0.01% Reduced -31.6k -31,631
83 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 22,93822.9k $215.4k $215.4k 0.00% Reduced -1.7k -1,749
84 Walleye Trading LLC 0.01% of their portfolio NEW YORK, NY 22,37122.4k $210.1k $210.1k 0.01% Added +4.4k +4,416
85 Trexquant Investment LP 0.01% of their portfolio STAMFORD, CT 19,46119.5k $182.7k $182.7k 0.01% Added +6.8k +6,777
86 Investors Research Corp 0.05% of their portfolio ATLANTA, GA 19,10019.1k $179.3k $179.3k 0.05% Unchanged
87 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 18,90018.9k $177.5k $177.5k 0.00% Added +3.5k +3,500
88 CAXTON ASSOCIATES LP 0.01% of their portfolio NEW YORK, NY 18,49718.5k $173.7k $173.7k 0.01% New
89 Atria Wealth Solutions, Inc. 0.00% of their portfolio NEW YORK, NY 14,78114.8k $138.8k $138.8k 0.00% Reduced -1.1k -1,103
90 State of Wyoming 0.04% of their portfolio CHEYENNE, WY 14,05014.1k $131.9k $131.9k 0.04% Added +3.4k +3,377
91 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 13,82313.8k $130.0k $130.0k 0.00% Reduced -2.0k -2,050
92 Legal & General Group Plc 0.00% of their portfolio London, X0 13,25813.3k $124.5k $124.5k 0.00% Unchanged
93 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 12,81812.8k $120.4k $120.4k 0.00% New
94 ARIZONA STATE RETIREMENT SYSTEM 0.00% of their portfolio PHOENIX, AZ 12,67012.7k $119.0k $119.0k 0.00% Added +470 +470
95 Quantbot Technologies LP 0.01% of their portfolio NEW YORK, NY 12,08612.1k $113.5k $113.5k 0.01% New
96 WOLVERINE TRADING, LLC 0.00% of their portfolio CHICAGO, IL 11,36811.4k $107.0k $107.0k 0.00% New
97 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 10,23410.2k $96.1k $96.1k 0.00% Unchanged
98 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 10,08210.1k $94.7k $94.7k 0.00% New
99 Leonteq Securities AG 0.00% of their portfolio ZURICH, V8 10,00010.0k $93.9k $93.9k 0.00% Unchanged
100 Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio ZURICH, V8 8,2248.2k $77.2k $77.2k 0.00% Unchanged