GCT Semiconductor Holding, Inc (GCTS) insider trading
Every open-market stock purchase and sale by GCT Semiconductor Holding, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- No open-market insider trades in the last 12 months.
- Last insider buy: Hyunsoo Shin (Insider), $21.4K, 11 months ago.
Last 12 months: insiders bought $58.1K (2 buys) and sold $0 (0 sales). Last close $1.39 on Oct 22, 2026.
Recent GCTS insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Sep 30, 2026 | Kyeongho Lee (Insider) | Bought (not open market) | — |
| Sep 30, 2026 | Robert Barker (Insider) | Bought (not open market) | — |
| Sep 30, 2026 | Jeffrey Tuder (Insider) | Bought (not open market) | — |
| Sep 30, 2026 | Nelson Chan (Insider) | Bought (not open market) | — |
| Sep 30, 2026 | Kukjin Chun (Insider) | Bought (not open market) | — |
| Sep 30, 2026 | Hyunsoo Shin (Insider) | Bought (not open market) | — |
| Sep 10, 2026 | Alex Sum (VP) | Bought (not open market) | — |
| Sep 10, 2026 | Jeong-Min Kim (CTO) | Bought (not open market) | — |
| Sep 10, 2026 | John Schlaefer (CEO) | Bought (not open market) | — |
| Sep 10, 2026 | Edmond Cheng (CFO) | Bought (not open market) | — |
| Jun 30, 2026 | Robert Barker (Insider) | Bought (not open market) | — |
| Jun 30, 2026 | Kukjin Chun (Insider) | Bought (not open market) | — |
| Jun 30, 2026 | Nelson Chan (Insider) | Bought (not open market) | — |
| Jun 30, 2026 | Kyeongho Lee (Insider) | Bought (not open market) | — |
| Jun 30, 2026 | Hyunsoo Shin (Insider) | Bought (not open market) | — |
| Jun 30, 2026 | Jeffrey Tuder (Insider) | Bought (not open market) | — |
| Mar 31, 2026 | Robert Barker (Insider) | Bought (not open market) | — |
| Mar 31, 2026 | Nelson Chan (Insider) | Bought (not open market) | — |
| Mar 31, 2026 | Kukjin Chun (Insider) | Bought (not open market) | — |
| Mar 31, 2026 | Hyunsoo Shin (Insider) | Bought (not open market) | — |
| Mar 31, 2026 | Kyeongho Lee (Insider) | Bought (not open market) | — |
| Mar 31, 2026 | Jeffrey Tuder (Insider) | Bought (not open market) | — |
| Feb 23, 2026 | Kukjin Chun (Insider) | Sold (not open market) | — |
| Dec 31, 2025 | Nelson Chan (Insider) | Bought (not open market) | — |
| Dec 31, 2025 | Kukjin Chun (Insider) | Bought (not open market) | — |
Who's trading GCTS
- Kyeongho Lee, Insider: other filings, last Sep 30, 2026
- Robert Barker, Insider: other filings, last Sep 30, 2026
- Hyunsoo Shin, Insider: bought $58.1K (3 buys), last Sep 30, 2026
- Nelson Chan, Insider: other filings, last Sep 30, 2026
- Jeffrey Tuder, Insider: other filings, last Sep 30, 2026
- Kukjin Chun, Insider: other filings, last Sep 30, 2026
- Alex Sum, VP: other filings, last Sep 10, 2026
- Edmond Cheng, CFO: other filings, last Sep 10, 2026
- Jeong-Min Kim, CTO: other filings, last Sep 10, 2026
- John Schlaefer, CEO: other filings, last Sep 10, 2026
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