GCTS insider trading — GCT Semiconductor Holding, Inc.
No open-market insider purchases or sales were filed for GCT Semiconductor Holding, Inc. (GCTS) in the last 90 days. Other insider transactions — such as stock awards, option exercises or tax withholding — are listed below.
Updated Oct 16, 2026.
Recent GCTS insider transactions
Every Form 4 filed by GCT Semiconductor Holding, Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 30, 2026 | Lee Kyeongho | Director | A · Grant/award | Direct | 12,971 | — | — | Form 4 |
| Sep 30, 2026 | Barker Robert | Director | A · Grant/award | Direct | 12,971 | — | — | Form 4 |
| Sep 30, 2026 | Tuder Jeffrey | Director | A · Grant/award | Direct | 12,971 | — | — | Form 4 |
| Sep 30, 2026 | Chan Nelson | Director | A · Grant/award | Direct | 12,971 | — | — | Form 4 |
| Sep 30, 2026 | Chun Kukjin | Director | A · Grant/award | Direct | 12,971 | — | — | Form 4 |
| Sep 30, 2026 | Shin Hyunsoo | Director | A · Grant/award | Direct | 12,971 | — | — | Form 4 |
| Sep 10, 2026 | Sum Alex | Sr. VP of Sales and Marketing | A · Grant/award | Direct | 75,000 | — | — | Form 4 |
| Sep 10, 2026 | Schlaefer John | President, CEO & Class III Dir | A · Grant/award | Direct | 150,000 | — | — | Form 4 |
| Sep 10, 2026 | Kim Jeong-Min | Chief Technology Officer | A · Grant/award | Direct | 100,000 | — | — | Form 4 |
| Sep 10, 2026 | Cheng Edmond | Chief Financial Officer | A · Grant/award | Direct | 145,000 | — | — | Form 4 |
GCTS insider trading FAQ
Are insiders buying GCTS stock?
Not on the open market. In the last 90 days, GCT Semiconductor Holding, Inc. insiders made no open-market purchases, and no open-market sales. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading GCTS?
No insider bought or sold on the open market in the last 90 days.
Where does GCTS insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
More stocks with insider activity
Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.