Magnachip Semiconductor
Designs and manufactures Power discrete and Power IC semiconductors for electronic applications.
$3.16
After-hours close+0.02 (+0.50%)
At close$3.15(−2.93%)
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Breakdown13F · Form 4
Institutions 53.76%19.62M sharesInsiders 15.73%5.74M sharesOther 30.51%11.14M shares
Shares outstanding 36.50M · Float 27.19M · 74.5% free float
Institutions13F, as of Mar 31, 2026
74 holders · 19.62M shares · 14 new positions · 34 increased · 22 reduced · 14 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Oaktree Capital Management LP | 2.85M | 7.81% | 0 | May 20, 2026 |
| Fourworld Capital Management LLC | 1.66M | 4.54% | +1.44M | May 15, 2026 |
| Ameriprise Financial Inc | 1.58M | 4.34% | +132.7K | Jul 17, 2026 |
| Immersion Corp | 1.38M | 3.79% | −495.4K | May 15, 2026 |
| Marshall Wace, LLP | 1.24M | 3.41% | −41.2K | May 15, 2026 |
| Clearline Capital LP | 1.11M | 3.05% | −346.4K | May 15, 2026 |
| First Wilshire Securities Management Inc | 744.0K | 2.04% | +11.1K | May 12, 2026 |
| 734.0K | 2.01% | +123.2K | May 13, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Byreforge LLCincl. Amoruso Cristiano | 8.50% | 3.07M | 13D | Jan 20, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Cristiano Amoruso | director | 3.15M | 8.62% | Aug 3, 2026 |
| Young-Joon Kim | director, officer: See Remarks | 591.0K | 1.62% | Jun 3, 2025 |
| Camillo Martino | director | 450.7K | 1.23% | Aug 18, 2026 |
| Gilbert E. Nathan | director | 423.9K | 1.16% | Aug 3, 2026 |
| Chae Lee | director, officer: Chief Executive Officer | 288.8K | 0.79% | Jul 6, 2026 |
| Ilbok Lee | director | 275.0K | 0.75% | Jul 3, 2025 |
| Shin Young Park | officer: See Remarks | 215.5K | 0.59% | Jan 2, 2026 |
| Kyo-Hwa Liz Chung | director | 149.6K | 0.41% | Aug 3, 2026 |
| Seunghoon Lee | officer: See Remarks | 128.2K | 0.35% | Jan 2, 2026 |
| Jinseok Yang | officer: See Remarks | 70.7K | 0.19% | Mar 4, 2025 |
6 ten-percent owners hold 12.28M shares by Form 4, outside the officers-and-directors figure above · 21 people have not refiled in the last 18 months (2.59M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Mar 16, 2026 | Gilbert E. Nathandirector | Purchase | 21,994 | $2.87 | 158,200 |
| Mar 12, 2026 | Gilbert E. Nathandirector | Purchase | 25,000 | $2.75 | 123,200 |
| Mar 13, 2026 | Gilbert E. Nathandirector | Purchase | 13,006 | $2.79 | 136,206 |
CongressHouse and Senate disclosures
Not reported.