GCT Semiconductor Holding, Inc. (GCTS) — insider trading
Information Technology · NYSE
GCT Semiconductor Holding, Inc. (GCTS) has 12 reported SEC Form 4 insider transactions in our data (latest 2026-06-30).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-30 | TUDER JEFFREY | Director, Other | Grant / award / vesting | 9,259 | $0.00 | $0 | Form 4 |
| 2026-06-30 | Shin Hyunsoo | Director, Other | Grant / award / vesting | 9,259 | $0.00 | $0 | Form 4 |
| 2026-06-30 | Lee Kyeongho | Director, Other | Grant / award / vesting | 9,259 | $0.00 | $0 | Form 4 |
| 2026-06-30 | Chan Nelson | Director, Other | Grant / award / vesting | 9,259 | $0.00 | $0 | Form 4 |
| 2026-06-30 | Chun Kukjin | Director, Other | Grant / award / vesting | 9,259 | $0.00 | $0 | Form 4 |
| 2026-06-30 | Barker Robert | Director, Other | Grant / award / vesting | 9,259 | $0.00 | $0 | Form 4 |
| 2026-03-31 | Shin Hyunsoo | Director, Other | Grant / award / vesting | 24,122 | $0.00 | $0 | Form 4 |
| 2026-03-31 | Barker Robert | Director, Other | Grant / award / vesting | 24,122 | $0.00 | $0 | Form 4 |
| 2026-03-31 | Chun Kukjin | Director, Other | Grant / award / vesting | 24,122 | $0.00 | $0 | Form 4 |
| 2026-03-31 | Chan Nelson | Director, Other | Grant / award / vesting | 24,122 | $0.00 | $0 | Form 4 |
| 2026-03-31 | Lee Kyeongho | Director, Other | Grant / award / vesting | 24,122 | $0.00 | $0 | Form 4 |
| 2026-03-31 | TUDER JEFFREY | Director, Other | Grant / award / vesting | 24,122 | $0.00 | $0 | Form 4 |
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Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: GCT Semiconductor Holding, Inc. (GCTS).
Last updated 2026-06-30 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.