GCT Semiconductor Holding, Inc.
GCTSFigures shown here come from public SEC filings. Dates beside each section show the available history.
How GCT Semiconductor Holding, Inc. Makes Money
Follow each dollar of revenue through to what shareholders keep.
From revenue to net income
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Financial Summary
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SEC filings supply these figures; updates after the dates shown are not included. This page includes 4 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated Apr 2, 2026.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Unusually large insider trades
Each trade is compared with the other insider trades of the same kind in the same security among GCT Semiconductor Holding, Inc.'s recent filings on file. Size alone is context, not a prediction or evidence of improper trading.
- 2025-08-15 · Shin Hyunsoo: Larger than 13 of the 14 other insider purchases of Common Stock on file. SEC filing
- 2024-09-26 · Anapass, Inc.: Larger than all 14 other insider purchases of Common Stock on file. SEC filing
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2025-11-25 | Shin Hyunsoo · Director, other | Common Stock | P — Open market or private purchase | +16,725 | 1.28 | SEC filing |
| 2025-11-21 | Shin Hyunsoo · Director, other | Common Stock | P — Open market or private purchase | +3,180 | 1.28 | SEC filing |
| 2025-11-20 | Shin Hyunsoo · Director, other | Common Stock | P — Open market or private purchase | +25,453 | 1.28 | SEC filing |
| 2025-09-12 | Shin Hyunsoo · Director, other | Common Stock | P — Open market or private purchase | +44,067 | 1.51 | SEC filing |
| 2025-09-05 | Shin Hyunsoo · Director, other | Common Stock | P — Open market or private purchase | +10,300 | 1.30 | SEC filing |
| 2025-09-04 | Shin Hyunsoo · Director, other | Common Stock | P — Open market or private purchase | +8,250 | 1.26 | SEC filing |
| 2025-08-15 | Shin Hyunsoo · Director, other | Common Stock | P — Open market or private purchase | +121,000 | 1.26 | SEC filing |
| 2025-06-10 | Shin Hyunsoo · Director, other | Common Stock | P — Open market or private purchase | +45,000 | 1.16 | SEC filing |
Showing 8 of 10 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-03-31 | Chan Nelson · Director, other | Common Stock | A — Grant, award, or other acquisition | +24,122 | SEC filing |
| 2026-03-31 | Barker Robert · Director, other | Common Stock | A — Grant, award, or other acquisition | +24,122 | SEC filing |
| 2026-03-31 | Shin Hyunsoo · Director, other | Common Stock | A — Grant, award, or other acquisition | +24,122 | SEC filing |
| 2026-03-31 | Lee Kyeongho · Director, other | Common Stock | A — Grant, award, or other acquisition | +24,122 | SEC filing |
| 2026-03-31 | Chun Kukjin · Director, other | Common Stock | A — Grant, award, or other acquisition | +24,122 | SEC filing |
| 2026-03-31 | TUDER JEFFREY · Director, other | Common Stock | A — Grant, award, or other acquisition | +24,122 | SEC filing |
| 2026-02-23 | Chun Kukjin · Director, other | Common Stock | G — Bona fide gift | −40,000 | SEC filing |
| 2025-12-31 | Shin Hyunsoo · Director, other | Common Stock | A — Grant, award, or other acquisition | +22,916 | SEC filing |
Showing 8 of 21 rows
Other activity
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2025-09-26 | Schlaefer John · President, CEO & Class III Dir | Common Stock, par value $0.0001 per share | J — Other acquisition or disposition | +555 | SEC filing |
| 2025-03-26 | Concord Sponsor Group III LLC · 10% owner | Warrant | J — Other acquisition or disposition | −3,948,086 | SEC filing |
| 2025-03-26 | Concord Sponsor Group III LLC · 10% owner | Common Stock | J — Other acquisition or disposition | −3,101,241 | SEC filing |
| 2025-03-26 | TUDER JEFFREY · Director, other | Common Stock | J — Other acquisition or disposition | +16,289 | SEC filing |
| 2025-03-26 | TUDER JEFFREY · Director, other | Warrants | J — Other acquisition or disposition | +20,734 | SEC filing |
| 2024-03-26 | Concord Sponsor Group III LLC · 10% owner | Common Stock | J — Other acquisition or disposition | −1,304,477 | SEC filing |
| 2024-03-26 (amended) | Lee Kyeongho · Director, other | Private Placement Warrants | J — Other acquisition or disposition | +800,000 | SEC filing |
| 2024-03-26 | Concord Sponsor Group III LLC · 10% owner | Warrant | J — Other acquisition or disposition | −2,478,182 | SEC filing |
Showing 8 of 10 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.