GCT Semiconductor Holding, Inc.
SEC CIK 1851961 · GCTS · last insider filing 2026-04-02
Directors (from insider filings)
| Name | Capacity as filed | Filings |
|---|---|---|
| Chan Nelson | Director | filed 2024 - 2026 |
| Lee Kyeongho | Director · Chairman & Class III Director | filed 2024 - 2026 |
| Tuder Jeffrey | Director · Chief Executive Officer | filed 2021 - 2026 |
| Shin Hyunsoo | Director · Class II Director | filed 2024 - 2026 |
| Barker Robert | Director | filed 2024 - 2026 |
| Chun Kukjin | Director | filed 2024 - 2026 |
| Schlaefer John | Director · President, CEO & Class III Dir | filed 2024 - 2025 |
| Leibowitz Lawrence E | Director | filed 2021 - 2023 |
| Ort Peter | Director | filed 2021 - 2023 |
| King Thomas C. | Director | filed 2021 - 2023 |
| Diamond Robert E. Jr. | Director | filed 2021 - 2021 |
Officers (from insider filings)
| Name | Title as filed | Filings |
|---|---|---|
| Cheng Edmond | Chief Financial Officer | filed 2024 - 2025 |
| Sum Alex | VP of Marketing and Sales | filed 2024 - 2025 |
| Kim Jeong-Min | VP of Engineering & CTO | filed 2024 - 2025 |
| Yoon David | Vice President of Finance | filed 2024 - 2024 |
| Cito Michele | Chief Financial Officer | filed 2021 - 2021 |
About this record
From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.
Source: SEC Insider Transactions Data Sets (Forms 3/4/5), US Federal Government public domain.