GCT Semiconductor Holding, Inc. (GCTS) Insider Trading -- Recent Executive & Director Transactions
10 insiders reported 61 Form 4 transactions for GCT Semiconductor Holding, Inc. (GCTS) over the past 18 months (most recent 2026-10-02). Recent activity: Chan Nelson (Director) Buy 12,971 shares, Lee Kyeongho (Director) Buy 12,971 shares, TUDER JEFFREY (Director) Buy 12,971 shares, Shin Hyunsoo (Director) Buy 12,971 shares, Barker Robert (Director) Buy 12,971 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-02 | Chan Nelson | Director | Buy | 12,971 | $0 |
| 2026-10-02 | Lee Kyeongho | Director | Buy | 12,971 | $0 |
| 2026-10-02 | TUDER JEFFREY | Director | Buy | 12,971 | $0 |
| 2026-10-02 | Shin Hyunsoo | Director | Buy | 12,971 | $0 |
| 2026-10-02 | Barker Robert | Director | Buy | 12,971 | $0 |
| 2026-10-02 | Chun Kukjin | Director | Buy | 12,971 | $0 |
| 2026-09-14 | Cheng Edmond | Chief Financial Officer | Buy | 145,000 | $0 |
| 2026-09-14 | Schlaefer John | President, CEO & Class III Dir | Buy | 150,000 | $0 |
| 2026-09-14 | Sum Alex | Sr. VP of Sales and Marketing | Buy | 75,000 | $0 |
| 2026-09-14 | Kim Jeong-Min | Chief Technology Officer | Buy | 100,000 | $0 |
| 2026-07-07 | TUDER JEFFREY | Director | Buy | 9,259 | $0 |
| 2026-07-02 | Chan Nelson | Director | Buy | 9,259 | $0 |
| 2026-07-02 | Shin Hyunsoo | Director | Buy | 9,259 | $0 |
| 2026-07-02 | Barker Robert | Director | Buy | 9,259 | $0 |
| 2026-07-02 | Chun Kukjin | Director | Buy | 9,259 | $0 |
| 2026-07-02 | Lee Kyeongho | Director | Buy | 9,259 | $0 |
| 2026-04-02 | Chun Kukjin | Director | Buy | 24,122 | $0 |
| 2026-04-02 | Shin Hyunsoo | Director | Buy | 24,122 | $0 |
| 2026-04-02 | Lee Kyeongho | Director | Buy | 24,122 | $0 |
| 2026-04-02 | Chan Nelson | Director | Buy | 24,122 | $0 |
| 2026-04-02 | Barker Robert | Director | Buy | 24,122 | $0 |
| 2026-04-02 | TUDER JEFFREY | Director | Buy | 24,122 | $0 |
| 2026-03-06 | Chun Kukjin | Director | Sell | 40,000 | $0 |
| 2026-01-05 | TUDER JEFFREY | Director | Buy | 22,916 | $0 |
| 2026-01-05 | Chan Nelson | Director | Buy | 22,916 | $0 |
Source: SEC Form 4 filings · as of 2026-10-02