Hyunsoo Shin insider trades: GCT Semiconductor Holding (GCTS) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Hyunsoo reports to the SEC
Open-market buys and sales
9 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 25, 2025 | GCTS | ↑ Buy | 16,725 | $1.28 | $21K | Direct | Nov 28, 2025 (3d) |
| Nov 21, 2025 | GCTS | ↑ Buy | 28,633 | $1.28 | $37K | Direct | Nov 24, 2025 (3d) |
| Sep 12, 2025 | GCTS | ↑ Buy | 44,067 | $1.51 | $67K | Direct | Sep 16, 2025 (4d) |
| Sep 5, 2025 | GCTS | ↑ Buy | 18,550 | $1.28 | $24K | Direct | Sep 8, 2025 (3d) |
| Aug 15, 2025 | GCTS | ↑ Buy | 121,000 | $1.26 | $152K | Direct | Aug 19, 2025 (4d) |
| Jun 10, 2025 | GCTS | ↑ Buy | 85,000 | $1.18 | $100K | Direct | Jun 12, 2025 (2d) |
| Jun 5, 2025 | GCTS | ↑ Buy | 160,000 | $1.02 | $164K | Direct | Jun 6, 2025 (1d) |
| May 23, 2025 | GCTS | ↑ Buy | 77,000 | $1.04 | $80K | Direct | May 27, 2025 (4d) |
| May 20, 2025 | GCTS | ↑ Buy | 86,000 | $1.18 | $101K | Direct | May 21, 2025 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Hyunsoo Shin's insider trades
Hyunsoo Shin is an insider at GCT Semiconductor Holding (GCTS). Since May 20, 2025, Hyunsoo has reported 9 open-market purchases worth $746K and no sales on SEC Form 4. In the last 12 months: 2 buys ($58K).
Their filings also include grants and awards (12 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every GCTS insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.