GCT Semiconductor Holding, Inc.
GCT Semiconductor Holding, Inc. (GCTS) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · GCTS · as of Jun 8, 2026
Activity summary
Buy transactions
14
P-Purchase only
Sell transactions
0
12 Months
Buy/Sell ratio
∞
Buy/Sell (by trades)
Overall sentiment
GCT Semiconductor Holding, Inc. insiders have been net buyers of shares over the past 12 Months, which may signal confidence in the company's outlook.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
GCTS insider buying and selling by quarter
GCTS insider selling · GCTS insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · GCTS ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
GCTS executive sell shares · GCTS board member insider trading · GCTS insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Mar 31, 2026 | TUDER JEFFREY Director | Award | 24,122 | — | Form 4 |
| Mar 31, 2026 | Lee Kyeongho Director | Award | 24,122 | — | Form 4 |
| Mar 31, 2026 | Chan Nelson Director | Award | 24,122 | — | Form 4 |
| Mar 31, 2026 | Chun Kukjin Director | Award | 24,122 | — | Form 4 |
| Mar 31, 2026 | Barker Robert Director | Award | 24,122 | — | Form 4 |
| Mar 31, 2026 | Shin Hyunsoo Director | Award | 24,122 | — | Form 4 |
| Feb 23, 2026 | Chun Kukjin Director | Gift | 40,000 | — | Form 4 |
| Dec 31, 2025 | TUDER JEFFREY Director | Award | 22,916 | — | Form 4 |
| Dec 31, 2025 | Barker Robert Director | Award | 22,916 | — | Form 4 |
| Dec 31, 2025 | Chan Nelson Director | Award | 22,916 | — | Form 4 |
| Dec 31, 2025 | Chun Kukjin Director | Award | 22,916 | — | Form 4 |
| Dec 31, 2025 | Lee Kyeongho Director | Award | 22,916 | — | Form 4 |
| Dec 31, 2025 | Shin Hyunsoo Director | Award | 22,916 | — | Form 4 |
| Nov 25, 2025 | Shin Hyunsoo Director | Purchase | 16,725 | $21K | Form 4 |
| Nov 21, 2025 | Shin Hyunsoo Director | Purchase | 3,180 | $4K | Form 4 |
| Nov 20, 2025 | Shin Hyunsoo Director | Purchase | 25,453 | $33K | Form 4 |
| Sep 30, 2025 | TUDER JEFFREY Director | Award | 18,092 | — | Form 4 |
| Sep 30, 2025 | Shin Hyunsoo Director | Award | 18,092 | — | Form 4 |
| Sep 30, 2025 | Lee Kyeongho Director | Award | 18,092 | — | Form 4 |
| Sep 30, 2025 | Chun Kukjin Director | Award | 18,092 | — | Form 4 |
| Sep 30, 2025 | Chan Nelson Director | Award | 18,092 | — | Form 4 |
| Sep 30, 2025 | Barker Robert Director | Award | 18,092 | — | Form 4 |
| Sep 12, 2025 | Shin Hyunsoo Director | Purchase | 44,067 | $67K | Form 4 |
| Sep 5, 2025 | Shin Hyunsoo Director | Purchase | 10,300 | $13K | Form 4 |
| Sep 4, 2025 | Shin Hyunsoo Director | Purchase | 8,250 | $10K | Form 4 |
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About GCTS insider trading
GCTS insider trades
GCT Semiconductor Holding, Inc. (GCTS) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Shin Hyunsoo (Director), Chun Kukjin (Director), TUDER JEFFREY (Director). Over the past 12 months, 5 insiders have filed transactions with the SEC. GCTS insiders have been primarily buying, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For GCT Semiconductor Holding, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
GCTS insider trading · 5 questionsThe insiders of GCT Semiconductor Holding, Inc. (GCTS) include executives and directors such as Shin Hyunsoo (Director), Chun Kukjin (Director), TUDER JEFFREY (Director), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026