Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| GCTS | Lee Kyeongho | Director | 09/30/2026 | Zuteilung | — | 12,971 | — | Form 4 |
| GCTS | Barker Robert | Director | 09/30/2026 | Zuteilung | — | 12,971 | — | Form 4 |
| GCTS | Tuder Jeffrey | Director | 09/30/2026 | Zuteilung | — | 12,971 | — | Form 4 |
| GCTS | Chan Nelson | Director | 09/30/2026 | Zuteilung | — | 12,971 | — | Form 4 |
| GCTS | Chun Kukjin | Director | 09/30/2026 | Zuteilung | — | 12,971 | — | Form 4 |
| GCTS | Shin Hyunsoo | Director | 09/30/2026 | Zuteilung | — | 12,971 | — | Form 4 |
| GCTS | Sum Alex | Sr. VP of Sales and Marketing | 09/10/2026 | Zuteilung | — | 75,000 | — | Form 4 |
| GCTS | Schlaefer John | President, CEO & Class III Dir | 09/10/2026 | Zuteilung | — | 150,000 | — | Form 4 |
| GCTS | Kim Jeong-Min | Chief Technology Officer | 09/10/2026 | Zuteilung | — | 100,000 | — | Form 4 |
| GCTS | Cheng Edmond | Chief Financial Officer | 09/10/2026 | Zuteilung | — | 145,000 | — | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).