GCTS
GCT Semiconductor Holding, Inc.Company with tickers: GCTS, GCTS-WT
CIK
1851961
CUSIP
36170N107
Shares Outstanding
72,494,116
Price
Holdings
Short Volume
Short Interest
Fails to Deliver
SEC Filings
Earnings Calls
Insider Trading
Congress Trades
| Date | Insider | Role | Type | Shares |
|---|---|---|---|---|
| 2026-03-31 | Shin Hyunsoo | Director | Award | 24,122 |
| 2026-03-31 | Chun Kukjin | Director | Award | 24,122 |
| 2026-03-31 | TUDER JEFFREY | Director | Award | 24,122 |
| 2026-03-31 | Chan Nelson | Director | Award | 24,122 |
| 2026-03-31 | Barker Robert | Director | Award | 24,122 |
| 2026-03-31 | Lee Kyeongho | Director | Award | 24,122 |
| 2026-02-23 | Chun Kukjin | Director | Gift | 40,000 |
| 2025-12-31 | Chan Nelson | Director | Award | 22,916 |
| 2025-12-31 | TUDER JEFFREY | Director | Award | 22,916 |
| 2025-12-31 | Chun Kukjin | Director | Award | 22,916 |
| 2025-12-31 | Lee Kyeongho | Director | Award | 22,916 |
| 2025-12-31 | Shin Hyunsoo | Director | Award | 22,916 |
| 2025-12-31 | Barker Robert | Director | Award | 22,916 |
| 2025-11-25 | Shin Hyunsoo | Director | Buy | 16,725 |
| 2025-11-21 | Shin Hyunsoo | Director | Buy | 3,180 |
| 2025-11-20 | Shin Hyunsoo | Director | Buy | 25,453 |
| 2025-09-30 | Lee Kyeongho | Director | Award | 18,092 |
| 2025-09-30 | Chun Kukjin | Director | Award | 18,092 |
| 2025-09-30 | Shin Hyunsoo | Director | Award | 18,092 |
| 2025-09-30 | Barker Robert | Director | Award | 18,092 |
| 2025-09-30 | TUDER JEFFREY | Director | Award | 18,092 |
| 2025-09-30 | Chan Nelson | Director | Award | 18,092 |
| 2025-09-26 | Schlaefer John | Director, President, CEO & Class III Dir | Other | 555 |
| 2025-09-19 | Sum Alex | Sr. VP of Sales and Marketing | Award | 75,000 |
| 2025-09-19 | Schlaefer John | Director, President, CEO & Class III Dir | Award | 75,000 |
| 2025-09-19 | Cheng Edmond | Chief Financial Officer | Award | 75,000 |
| 2025-09-19 | Kim Jeong-Min | Chief Technology Officer | Award | 75,000 |
| 2025-09-12 | Shin Hyunsoo | Director | Buy | 44,067 |
| 2025-09-05 | Shin Hyunsoo | Director | Buy | 10,300 |
| 2025-09-04 | Shin Hyunsoo | Director | Buy | 8,250 |
| 2025-08-15 | Shin Hyunsoo | Director | Buy | 121,000 |
| 2025-06-30 | Lee Kyeongho | Director | Award | 18,456 |
| 2025-06-30 | TUDER JEFFREY | Director | Award | 18,456 |
| 2025-06-30 | Shin Hyunsoo | Director | Award | 18,456 |
| 2025-06-30 | Chun Kukjin | Director | Award | 18,456 |
| 2025-06-30 | Chan Nelson | Director | Award | 18,456 |
| 2025-06-30 | Barker Robert | Director | Award | 18,456 |
| 2025-06-10 | Shin Hyunsoo | Director | Buy | 40,000 |
| 2025-06-05 | Shin Hyunsoo | Director | Buy | 58,700 |
| 2025-06-04 | Shin Hyunsoo | Director | Buy | 80,000 |
| 2025-05-23 | Shin Hyunsoo | Director | Buy | 77,000 |
| 2025-05-20 | Shin Hyunsoo | Director | Buy | 86,000 |
| 2025-03-31 | Lee Kyeongho | Director | Award | 16,768 |
| 2025-03-31 | Barker Robert | Director | Award | 16,768 |
| 2025-03-31 | Shin Hyunsoo | Director | Award | 16,768 |
| 2025-03-31 | Chun Kukjin | Director | Award | 16,768 |
| 2025-03-31 | TUDER JEFFREY | Director | Award | 16,768 |
| 2025-03-31 | Chan Nelson | Director | Award | 16,768 |
| 2025-03-26 | Concord Sponsor Group III LLC | 10% Owner | Other | 3,948,086 |
| 2025-03-26 | Concord Sponsor Group III LLC | 10% Owner | Other | 3,101,241 |
| 2025-03-26 | TUDER JEFFREY | Director | Other | 16,289 |
| 2025-03-26 | TUDER JEFFREY | Director | Other | 20,734 |
| 2025-02-19 | Sum Alex | Sr. VP of Sales and Marketing | Convert | 13,259 |
| 2025-02-19 | Sum Alex | Sr. VP of Sales and Marketing | Convert | 13,259 |
| 2025-01-13 | Schlaefer John | Director, President, CEO & Class III Dir | Convert | 35,669 |
| 2025-01-13 | Schlaefer John | Director, President, CEO & Class III Dir | Convert | 35,669 |
| 2024-12-31 | Shin Hyunsoo | Director | Award | 11,802 |
| 2024-12-31 | TUDER JEFFREY | Director | Award | 11,802 |
| 2024-12-31 | Barker Robert | Director | Award | 11,802 |
| 2024-12-31 | Lee Kyeongho | Director | Award | 11,802 |
| 2024-12-31 | Chun Kukjin | Director | Award | 11,802 |
| 2024-12-31 | Chan Nelson | Director | Award | 11,802 |
| 2024-12-16 | Shin Hyunsoo | Director | Award | 37,000 |
| 2024-12-13 | Shin Hyunsoo | Director | Award | 800 |
| 2024-09-30 | TUDER JEFFREY | Director | Award | 8,208 |
| 2024-09-30 | Shin Hyunsoo | Director | Award | 8,208 |
| 2024-09-30 | Barker Robert | Director | Award | 8,208 |
| 2024-09-30 | Chun Kukjin | Director | Award | 8,208 |
| 2024-09-30 | Chan Nelson | Director | Award | 8,208 |
| 2024-09-30 | Lee Kyeongho | Director | Award | 8,208 |
| 2024-09-26 | Anapass, Inc. | 10% Owner | Other | 937,350 |
| 2024-09-26 | Anapass, Inc. | 10% Owner | Buy | 148,320 |
| 2024-09-26 | Anapass, Inc. | 10% Owner | Buy | 741,603 |
| 2024-08-21 | Cheng Edmond | Chief Financial Officer | Award | 76,000 |
| 2024-06-30 | TUDER JEFFREY | Director | Award | 5,278 |
| 2024-06-30 | Barker Robert | Director | Award | 5,278 |
| 2024-06-30 | Shin Hyunsoo | Director | Award | 5,278 |
| 2024-06-30 | Lee Kyeongho | Director | Award | 5,278 |
| 2024-06-30 | Chun Kukjin | Director | Award | 5,278 |
| 2024-06-30 | Chan Nelson | Director | Award | 5,278 |
| 2024-03-26 | Barker Robert | Director | Award | 933 |
| 2024-03-26 | Barker Robert | Director | Award | 13,073 |
| 2024-03-26 | Anapass, Inc. | 10% Owner | Other | 0 |
| 2024-03-26 | Barker Robert | Director | Other | 0 |
| 2024-03-26 | Sum Alex | Sr. VP of Sales and Marketing | Other | 0 |
| 2024-03-26 | Concord Sponsor Group III LLC | 10% Owner | Award | 8,260,606 |
| 2024-03-26 | Concord Sponsor Group III LLC | 10% Owner | Other | 1 |
| 2024-03-26 | Concord Sponsor Group III LLC | 10% Owner | Other | 2,478,182 |
| 2024-03-26 | Concord Sponsor Group III LLC | 10% Owner | Other | 1 |
| 2024-03-26 | Yoon David | Vice President of Finance | Award | 6,536 |
| 2024-03-26 | Yoon David | Vice President of Finance | Award | 30,093 |
| 2024-03-26 | Shin Hyunsoo | Director | Award | 456 |
| 2024-03-26 | Shin Hyunsoo | Director | Award | 6,536 |
| 2024-03-26 | Kim Jeong-Min | Chief Technology Officer | Award | 82,359 |
| 2024-03-26 | Kim Jeong-Min | Chief Technology Officer | Award | 215,285 |
| 2024-03-26 | Chan Nelson | Director | Other | 0 |
| 2024-03-26 | Cheng Edmond | Chief Financial Officer | Other | 0 |
| 2024-03-26 | Shin Hyunsoo | Director | Other | 0 |
| 2024-03-26 | Kim Jeong-Min | Chief Technology Officer | Other | 0 |
| 2024-03-26 | Schlaefer John | Director, President, CEO & Class III Dir | Other | 0 |