MX · NYSE · Semiconductors

Magnachip Semiconductor (MX)

Designs and manufactures Power discrete and Power IC semiconductors for electronic applications.

$3.20
vs last close−0.00 (−0.16%)

13F · 13D/G · Form 4

Institutions42.92%15.64M shares
92 holders · as of Jun 30, 2026
Insiders11.99%4.37M shares
12 holders · as of Aug 18, 2026
Other45.09%16.43M shares
remainder

36.44M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

13F · 13D/G · Form 4

HolderStakeSharesDate
Assenagon S.A., Assenagon Asset Management S.A.Institution
6.57%2.39Mfiled Apr 17, 2020
Capital World InvestorsInstitution
6.46%2.36Mfiled Feb 13, 2017
Marshall Wace, LLPInstitution
4.43%1.62Mas of Jun 30, 2026
Fourworld Capital Management LLCInstitution
4.39%1.60Mas of Jun 30, 2026
Two Sigma Investments, LPInstitution
4.12%1.50Mas of Jun 30, 2026
Oaktree Capital Management LPInstitution
4.12%1.50Mas of Jun 30, 2026
AllianceBernstein L.P.Insider
3.86%1.41Mfiled Feb 8, 2021
D. E. Shaw & Co., Inc.Institution
3.84%1.40Mas of Jun 30, 2026
Acadian Asset Management LLCInstitution
2.64%963,768as of Jun 30, 2026
Renaissance Technologies LLCInstitution
1.82%661,600as of Jun 30, 2026
Young-Joon KimInsiderdirector, officer: See Remarks
1.62%590,970filed Jun 3, 2025
Morgan StanleyInstitution
1.49%544,125as of Jun 30, 2026
Dimensional Fund Advisors LPInstitution
1.31%475,648as of Jun 30, 2026
Camillo MartinoInsiderdirector
1.24%450,661filed Aug 18, 2026
Gilbert E. NathanInsiderdirector
1.16%423,882filed Aug 3, 2026
Connor, Clark & Lunn Investment Management Ltd.Institution
1.13%412,849as of Jun 30, 2026
Qube Research & Technologies LtdInstitution
1.05%382,383as of Jun 30, 2026
Theodore S. KimInsiderofficer: See Remarks
0.80%293,200filed Jan 3, 2025
Chae LeeInsiderdirector, officer: Chief Executive Officer
0.79%288,750filed Jul 6, 2026
Trexquant Investment LPInstitution
0.78%285,909as of Jun 30, 2026
Ilbok LeeInsiderdirector
0.75%275,026filed Jul 3, 2025
BNP Paribas Arbitrage, SNCInstitution
0.73%265,146as of Jun 30, 2026
Vanguard Portfolio Management LLCInstitution
0.66%239,694as of Jun 30, 2026
Millennium Management LLCInstitution
0.65%236,422as of Jun 30, 2026
XTX Topco LtdInstitution
0.61%222,197as of Jun 30, 2026

13F, as of Jun 30, 2026

92 holders · 15.64M shares · 26 new positions · 49 increased · 23 reduced · 19 closed

HolderShares% outstandingChg q/qFiled
Marshall Wace, LLP1.62M4.43%+370.9KAug 13, 2026
Fourworld Capital Management LLC1.60M4.39%−57.0KAug 14, 2026
Two Sigma Investments, LP1.50M4.12%+929.6KAug 14, 2026
Oaktree Capital Management LP1.50M4.12%−1.35MAug 14, 2026
D. E. Shaw & Co., Inc.1.40M3.84%+1.24MAug 14, 2026
Acadian Asset Management LLC963.8K2.64%+317.1KAug 13, 2026
Renaissance Technologies LLC661.6K1.82%+626.1KAug 13, 2026
Morgan Stanley544.1K1.49%−166.3KAug 13, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Byreforge LLCincl. Amoruso Cristiano8.50%3.07M13DJan 20, 2026

Form 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Mar 16, 2026
Gilbert E. Nathandirector
Purchase21,994$2.87158,200
Mar 12, 2026
Gilbert E. Nathandirector
Purchase25,000$2.75123,200
Mar 13, 2026
Gilbert E. Nathandirector
Purchase13,006$2.79136,206

House and Senate disclosures

Not reported.