Magnachip Semiconductor's three largest insider shareholders as of March 23, 2026 are Young-Joon Kim (See Remarks, 590.97K shares), Camillo Martino (See Remarks, 364.61K shares), Theodore S Kim (See Remarks, 293.20K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Camillo Martino | See Remarks | 364,611 | 0 | 03 Oct, 2025 |
| Shin Young Park | See Remarks | 215,454 | 0 | 02 Jan, 2026 |
| Gilbert E Nathan | 214,491 | 0 | 17 Feb, 2026 | |
| Gilbert E Nathan | 0 | 158,200 | 17 Mar, 2026 | |
| Gary W. Tanner | 131,009 | 0 | 05 Jun, 2023 | |
| Jinseok Yang | See Remarks | 70,742 | 0 | 04 Mar, 2025 |
| Chan Ho Park | See Remarks | 42,012 | 0 | 03 Jan, 2024 |
| Camillo Martino | 0 | 40,000 | 17 Mar, 2025 | |
| Young Soo Woo | See Remarks | 23,697 | 0 | 04 Jan, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 16 Mar, 2026 | Gilbert E Nathan | Common Stock | A | 21,994 | $2.87 | 158,200 | I | P |
| 12 Mar, 2026 | Gilbert E Nathan | Common Stock | A | 25,000 | $2.75 | 123,200 | I | P |
| 13 Mar, 2026 | Gilbert E Nathan | Common Stock | A | 13,006 | $2.79 | 136,206 | I | P |
| 15 Feb, 2026 | Gilbert E Nathan | Common Stock | A | 1,478 | $0.00 | 214,491 | D | A |
| 31 Dec, 2025 | Shin Young Park | Common Stock | D | 6,121 | $2.55 | 245,665 | D | F |
| 31 Dec, 2025 | Shin Young Park | Common Stock | D | 12,234 | $2.55 | 233,431 | D | F |
| 31 Dec, 2025 | Shin Young Park | Common Stock | D | 17,977 | $2.55 | 215,454 | D | F |
| 15 Nov, 2025 | Gilbert E Nathan | Common Stock | A | 6,320 | $0.00 | 213,013 | D | A |
| 01 Oct, 2025 | Camillo Martino | Common Stock | A | 105,484 | $0.00 | 364,611 | D | A |
| 22 Aug, 2025 | Camillo Martino | Common Stock | A | 30,000 | $2.84 | 259,127 | D | P |
| 25 Aug, 2025 | Shin Young Park | Common Stock | A | 10,000 | $2.87 | 251,786 | D | P |
| 01 Jul, 2025 | Gilbert E Nathan | Common Stock | A | 50,650 | $0.00 | 206,693 | D | A |
| 01 Jul, 2025 | Camillo Martino | Common Stock | A | 53,247 | $0.00 | 229,127 | D | A |
| 01 Jun, 2025 | Shin Young Park | Common Stock | A | 110,210 | $0.00 | 241,786 | D | A |
| 01 Jun, 2025 | Shin Young Park | Performance-Based Restricted Stock Units | A | 55,104 | $0.00 | 55,104 | D | A |
| 13 Mar, 2025 | Gilbert E Nathan | Common Stock | A | 20,000 | $3.68 | 98,200 | I | P |
| 13 Mar, 2025 | Camillo Martino | Common Stock | A | 20,000 | $3.66 | 40,000 | I | P |
| 01 Mar, 2025 | Jinseok Yang | Common Stock | A | 7,000 | $4.54 | 73,909 | D | A |
| 01 Mar, 2025 | Jinseok Yang | Common Stock | D | 3,167 | $4.54 | 70,742 | D | F |
| 31 Dec, 2024 | Shin Young Park | Common Stock | D | 2,445 | $4.02 | 149,918 | D | F |