MAGNACHIP SEMICONDUCTOR Corp (MX) — Institutional Holders, Q2 2026
76 institutional investment managers reported a MX position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $73.9M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
MX in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- D. E. ShawAdded · +1,238,153 sh+$5.9M
- TWO SIGMA INVESTMENTSAdded · +929,604 sh+$4.4M
- RENAISSANCE TECHNOLOGIESAdded · +626,100 sh+$3.0M
- Qube Research & Technologies LtdNew · +382,383 sh+$1.8M
- MARSHALL WACE, LLPAdded · +370,866 sh+$1.8M
Biggest sellers
- AMERIPRISE FINANCIALSold out · -1,583,589 sh-$7.5M
- IMMERSIONSold out · -1,383,402 sh-$6.5M
- OAKTREE CAPITAL MANAGEMENTTrimmed · -1,349,858 sh-$6.4M
- Clearline CapitalSold out · -1,114,590 sh-$5.3M
- FIRST WILSHIRE SECURITIES MANAGEMENTSold out · -743,953 sh-$3.5M
MX 13F holders ranked 1–76 of 76
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | MARSHALL WACE, LLP#1 · 1,615,488 sh | 1,615,488 | $7.6M | <0.01% | +29.8% |
| 2 | FourWorld Capital Management#2 · 1,600,695 sh | 1,600,695 | $7.6M | 6.89% | -3.4% |
| 3 | TWO SIGMA INVESTMENTS#3 · 1,501,438 sh | 1,501,438 | $7.1M | <0.01% | +162.6% |
| 4 | OAKTREE CAPITAL MANAGEMENT#4 · 1,500,000 sh | 1,500,000 | $7.1M | 0.10% | -47.4% |
| 5 | D. E. Shaw#5 · 1,397,759 sh | 1,397,759 | $6.6M | <0.01% | +775.8% |
| 6 | ACADIAN ASSET MANAGEMENT#6 · 963,768 sh | 963,768 | $4.5M | <0.01% | +49.0% |
| 7 | RENAISSANCE TECHNOLOGIES#7 · 661,600 sh | 661,600 | $3.1M | <0.01% | +1763.7% |
| 8 | MORGAN STANLEY#8 · 544,125 sh | 544,125 | $2.6M | <0.01% | -23.4% |
| 9 | DIMENSIONAL FUND ADVISORS#9 · 475,648 sh | 475,648 | $2.2M | <0.01% | -13.4% |
| 10 | Connor, Clark & Lunn Investment Management Ltd.#10 · 412,849 sh | 412,849 | $2.0M | <0.01% | +326.8% |
| 11 | Qube Research & Technologies Ltd#11 · 382,383 sh | 382,383 | $1.8M | <0.01% | New |
| 12 | Trexquant Investment#12 · 285,909 sh | 285,909 | $1.4M | <0.01% | New |
| 13 | BNP PARIBAS FINANCIAL MARKETS#13 · 265,146 sh | 265,146 | $1.3M | <0.01% | -19.5% |
| 14 | VANGUARD PORTFOLIO MANAGEMENT#14 · 239,694 sh | 239,694 | $1.1M | <0.01% | 0.0% |
| 15 | MILLENNIUM MANAGEMENT#15 · 236,422 sh | 236,422 | $1.1M | <0.01% | -19.3% |
| 16 | XTX Topco Ltd#16 · 222,197 sh | 222,197 | $1.1M | 0.01% | New |
| 17 | JANE STREET GROUP#17 · 215,877 sh | 215,877 | $1.0M | <0.01% | +333.8% |
| 18 | ODDO BHF ASSET MANAGEMENT SAS#18 · 215,098 sh | 215,098 | $1.0M | 0.05% | 0.0% |
| 19 | BOOTHBAY FUND MANAGEMENT#19 · 200,081 sh | 200,081 | $946.4K | 0.01% | -3.4% |
| 20 | GSA CAPITAL PARTNERS LLP#20 · 199,954 sh | 199,954 | $946.0K | 0.06% | -28.8% |
| 21 | Caption Management#21 · 160,090 sh | 160,090 | $757.2K | <0.01% | New |
| 22 | Steward Partners Investment Advisory#22 · 153,347 sh | 153,347 | $725.3K | <0.01% | -22.2% |
| 23 | BLUEFIN CAPITAL MANAGEMENT#23 · 147,698 sh | 147,698 | $698.6K | 0.17% | New |
| 24 | GROUP ONE TRADING, L.P.#24 · 117,823 sh | 117,823 | $557.3K | <0.01% | +397.9% |
| 25 | Virtu Financial#25 · 114,969 sh | 114,969 | $544.0K | 0.02% | New |
| 26 | CITADEL ADVISORS#26 · 111,043 sh | 111,043 | $525.2K | <0.01% | +26.1% |
| 27 | ALGERT GLOBAL#27 · 110,785 sh | 110,785 | $524.0K | <0.01% | +88.7% |
| 28 | UBS Group AG#28 · 110,336 sh | 110,336 | $521.9K | <0.01% | -39.9% |
| 29 | Federation des caisses Desjardins du Quebec#29 · 108,474 sh | 108,474 | $512.8K | <0.01% | +343.9% |
| 30 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#30 · 108,103 sh | 108,103 | $511.3K | 0.00% | +344.0% |
| 31 | SILVERBACK ASSET MANAGEMENT#31 · 100,000 sh | 100,000 | $473.0K | 0.05% | -54.5% |
| 32 | GOLDMAN SACHS GROUP#32 · 95,843 sh | 95,843 | $453.3K | 0.00% | -52.2% |
| 33 | TUDOR INVESTMENT ET AL#33 · 75,103 sh | 75,103 | $355.2K | <0.01% | New |
| 34 | AMERICAN CENTURY COMPANIES#34 · 73,701 sh | 73,701 | $348.6K | <0.01% | +1.5% |
| 35 | IMC-Chicago#35 · 67,909 sh | 67,909 | $321.2K | <0.01% | New |
| 36 | Squarepoint Ops#36 · 67,450 sh | 67,450 | $319.0K | <0.01% | New |
| 37 | FAIRFAX FINANCIAL LTD/ CAN#37 · 62,500 sh | 62,500 | $296.3K | 0.01% | -50.0% |
| 38 | BARCLAYS PLC#38 · 60,000 sh | 60,000 | $283.8K | <0.01% | +937.7% |
| 39 | Eurizon Capital SGR S.p.A.#39 · 60,955 sh | 60,955 | $281.9K | <0.01% | -14.1% |
| 40 | Polunin Capital Partners Ltd#40 · 59,811 sh | 59,811 | $240.0K | — | +4.9% |
| 41 | BRIDGEWAY CAPITAL MANAGEMENT#41 · 46,141 sh | 46,141 | $218.2K | <0.01% | -80.3% |
| 42 | JPMORGAN CHASE#42 · 38,588 sh | 38,588 | $178.3K | 0.00% | -69.5% |
| 43 | WINTON GROUP Ltd#43 · 34,678 sh | 34,678 | $164.0K | <0.01% | New |
| 44 | Yakira Capital Management#44 · 34,675 sh | 34,675 | $164.0K | 0.05% | -64.6% |
| 45 | WESBANCO BANK#45 · 30,000 sh | 30,000 | $141.9K | <0.01% | New |
| 46 | HRT FINANCIAL#46 · 528,441 sh | 528,441 | $136.4K | <0.01% | +2659.8% |
| 47 | STATE STREET#47 · 28,692 sh | 28,692 | $135.7K | 0.00% | +1.0% |
| 48 | Tower Research Capital (TRC)#48 · 27,646 sh | 27,646 | $130.8K | <0.01% | +6211.9% |
| 49 | CITIGROUP#49 · 23,206 sh | 23,206 | $109.8K | 0.00% | New |
| 50 | GABELLI & INVESTMENT ADVISERS#50 · 22,505 sh | 22,505 | $106.4K | 0.02% | -71.0% |
| 51 | GABELLI FUNDS#51 · 21,670 sh | 21,670 | $102.5K | <0.01% | -81.4% |
| 52 | SUSQUEHANNA FUNDAMENTAL INVESTMENTS#52 · 19,066 sh | 19,066 | $90.2K | <0.01% | New |
| 53 | AXQ CAPITAL#53 · 18,212 sh | 18,212 | $86.1K | <0.01% | -43.9% |
| 54 | LPL Financial#54 · 17,685 sh | 17,685 | $83.7K | 0.00% | +48.2% |
| 55 | FOX RUN MANAGEMENT, L.L.C.#55 · 16,461 sh | 16,461 | $77.9K | 0.01% | New |
| 56 | BlackRock#56 · 13,377 sh | 13,377 | $63.3K | 0.00% | -93.6% |
| 57 | Owlhouse Capital#57 · 13,140 sh | 13,140 | $62.2K | 0.10% | New |
| 58 | Caitong International Asset Management , Ltd#58 · 13,092 sh | 13,092 | $61.9K | <0.01% | New |
| 59 | Accurate Wealth Management#59 · 15,000 sh | 15,000 | $60.3K | — | New |
| 60 | StoneX Group#60 · 10,625 sh | 10,625 | $57.5K | <0.01% | New |
| 61 | C2P Capital Advisory Group, d.b.a. Prosperity Capital Ad#61 · 11,475 sh | 11,475 | $54.3K | — | New |
| 62 | Centiva Capital#62 · 10,573 sh | 10,573 | $50.0K | <0.01% | -75.6% |
| 63 | Walleye Capital#63 · 10,521 sh | 10,521 | $49.8K | <0.01% | New |
| 64 | Rockefeller Capital Management L.P.#64 · 10,000 sh | 10,000 | $47.3K | <0.01% | New |
| 65 | OSAIC#65 · 7,193 sh | 7,193 | $34.0K | 0.00% | 0.0% |
| 66 | Newbridge Financial Services Group#66 · 5,925 sh | 5,925 | $28.0K | — | +25.4% |
| 67 | SIMPLEX TRADING#67 · 3,225 sh | 3,225 | $15.3K | 0.00% | +2093.9% |
| 68 | SBI Securities , Ltd.#68 · 2,296 sh | 2,296 | $10.9K | — | +117.4% |
| 69 | NewEdge Advisors#69 · 1,000 sh | 1,000 | $4.7K | 0.00% | New |
| 70 | JONES FINANCIAL COMPANIES LLLP#70 · 1,000 sh | 1,000 | $4.7K | 0.00% | 0.0% |
| 71 | Ameritas Advisory Services#71 · 946 sh | 946 | $4.5K | <0.01% | New |
| 72 | ROYAL BANK OF CANADA#72 · 688 sh | 688 | $3.0K | 0.00% | -64.4% |
| 73 | TD Waterhouse Canada#73 · 500 sh | 500 | $2.2K | — | New |
| 74 | SALEM INVESTMENT COUNSELORS#74 · 300 sh | 300 | $1.4K | — | 0.0% |
| 75 | Integrated Wealth Concepts#75 · 250 sh | 250 | $1.2K | 0.00% | New |
| 76 | FMR#76 · 37 sh | 37 | $175.00 | 0.00% | 0.0% |
Funds that sold out of MX in Q2 2026 (18)
Held MX at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| AMERIPRISE FINANCIAL1,583,589 sh | 1,583,589 | $4.4M |
| IMMERSION1,383,402 sh | 1,383,402 | $3.9M |
| Clearline Capital1,114,590 sh | 1,114,590 | $3.1M |
| FIRST WILSHIRE SECURITIES MANAGEMENT743,953 sh | 743,953 | $2.1M |
| Cygnus Capital Advisors733,954 sh | 733,954 | $2.1M |
| STATE OF WISCONSIN INVESTMENT BOARD557,617 sh | 557,617 | $1.6M |
| PRELUDE CAPITAL MANAGEMENT403,627 sh | 403,627 | $1.1M |
| Potomac Capital Management365,000 sh | 365,000 | $1.0M |
| Point72 Asset Management, L.P.94,209 sh | 94,209 | $263.8K |
| ALTFEST L J47,809 sh | 47,809 | $133.9K |
| Jump Financial24,124 sh | 24,124 | $67.5K |
| Quadrature Capital Ltd19,169 sh | 19,169 | $53.7K |
| HSBC PLC13,097 sh | 13,097 | $36.3K |
| PRUDENTIAL FINANCIAL12,700 sh | 12,700 | $35.6K |
| Cetera Investment Advisers12,368 sh | 12,368 | $34.6K |
| SEVEN MILE ADVISORY10,173 sh | 10,173 | $28.5K |
| Advisory Services Network500 sh | 500 | $1.4K |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT3 sh | 3 | $8.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.