List of insiders holdings for GCT Semiconductor Holding Inc.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | Anapass Inc. 10% Owner | 2024-09-27 16:08:53 | 9,103,136 0 | 9,103,136 | Form 4 |
| 2 | Lee Kyeongho Chairman & Class III Director | 2026-10-02 17:39:11 | 1,109,093 0 | 1,109,093 | Form 4 |
| 3 | Shin Hyunsoo Class II Director Director | 2026-10-02 17:31:03 | 827,039 0 | 827,039 | Form 4 |
| 4 | Concord Sponsor Group III LLC 10% Owner | 2025-03-28 16:04:00 | 632,586 0 | 632,586 | Form 13G |
| 5 | Kim Jeong-Min Chief Technology Officer | 2026-09-14 16:28:37 | 402,701 0 | 402,701 | Form 4 |
| 6 | Schlaefer John President, CEO & Class III Dir | 2026-09-14 16:30:27 | 352,728 0 | 352,728 | Form 4 |
| 7 | Cheng Edmond Chief Financial Officer | 2026-09-14 16:25:06 | 296,000 0 | 296,000 | Form 4 |
| 8 | Sum Alex Sr. VP of Sales and Marketing | 2026-09-14 16:32:15 | 258,743 0 | 258,743 | Form 4 |
| 9 | Barker Robert Class II Director Director | 2026-10-02 17:37:39 | 164,681 0 | 164,681 | Form 4 |
| 10 | TUDER JEFFREY Class III Director Director | 2026-10-02 17:36:21 | 164,161 0 | 164,161 | Form 4 |
| 11 | Chan Nelson Class I Director Director | 2026-10-02 17:33:58 | 147,872 0 | 147,872 | Form 4 |
| 12 | Chun Kukjin Class I Director Director | 2026-10-02 17:32:23 | 111,607 0 | 111,607 | Form 4 |
| 13 | Yoon David Vice President of Finance | 2024-03-27 18:59:35 | 76,930 0 | 76,930 | Form 4 |
| 14 | Ort Peter Director | 2023-11-17 18:06:23 | 30,000 0 | 30,000 | Form 4 |
| 15 | KING THOMAS C. Director | 2023-11-17 18:05:01 | 30,000 0 | 30,000 | Form 4 |
| 16 | LEIBOWITZ LAWRENCE E Director | 2023-11-17 18:02:24 | 30,000 0 | 30,000 | Form 4 |
| 17 | Diamond Robert E. Jr. Director | 2021-11-03 21:43:03 | 0 0 | 0 | Form 3 |
| 18 | Cito Michele Chief Financial Officer | 2021-11-03 21:44:12 | 0 0 | 0 | Form 3 |