Magnachip Semiconductor Corp
A designer and manufacturer of analog and mixed-signal semiconductors, Magnachip makes power-management chips used in communications, consumer, and industrial gear, and it long supplied display driver chips for smartphone and TV screens. The company was born in 2004 when the non-memory semiconductor division of Hynix Semiconductor (formerly Hyundai Electronics) was sold to a private equity firm, with roots reaching back to LG Semiconductor's 1979 start. Its name blends the Latin "magna" (great) with "chip," and it earned a reputation for "8-inch stubbornness" by keeping its specialty chips on 8-inch wafers while rivals moved to larger ones.
Granted 28.6K
Granted 100.8K · Bought 90.0K
Granted 297.3K · Bought 17.8K
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| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Amoruso CristianoDirector · 1 transaction | — | 3.10M | 28.6K | — | — |
| Nathan Gilbert EDirector · 10 transactions | +96.9% | 592.6K | 100.8K | 90.0K | — |
| Kim Young-JoonSee Remarks, Director · 9 transactions | +10.8% | 591.0Kas of Jun 2025 | 297.3K | 17.8K | — |
| Martino CamilloSee Remarks, Director · 6 transactions | — | 404.6K | 199.9K | 60.0K | — |
| Park ShinyoungChief Financial Officer · 1 transaction | — | 328.0K | 112.5K | — | — |
| Kim Theodore SSee Remarks · 9 transactions | +26.1% | 311.2Kas of Dec 2024 | 75.0K | 7.0K | — |
| Lee IlbokDirector · 4 transactions | +78.7% | 275.0Kas of Jul 2025 | 101.1K | 20.0K | — |
| Park Shin YoungSee Remarks · 13 transactions | +176.5% | 215.5K | 185.2K | 19.0K | — |
| Lee SeunghoonChief of Manufacturing · 13 transactions | — | 158.2K | 104.8K | — | — |
| Lee Woung MooSee Remarks · 4 transactions | +16.5% | 151.9Kas of Jun 2024 | 30.0K | — | — |
| Chung Kyo-Hwa LizDirector · 6 transactions | +163.5% | 100.8K | 86.7K | — | — |
| Yang JinseokSee Remarks · 5 transactions | — | 73.9Kas of Mar 2025 | 7.0K | — | — |
| Park Chan HoSee Remarks · 3 transactions | -0.8% | 43.6Kas of Dec 2023 | — | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: +213.8K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.