GCT Semiconductor Holding, Inc. (GCTS)
GCT Semiconductor Holding, Inc., operates as a fabless semiconductor company, designs, develops, and markets integrated circuits for the wireless semiconductor industry. The company provides RF and modem chipsets based on 4G LTE technology, including 4G LTE, 4.5G LTE Advanced, and 4.75G LTE Advanced-Pro. It develops and sells cellular IoT chipsets for low-speed mobile networks such as eMTC/NB-IOT/Sigfox, and other network protocols; and 5G solutions. Its products and solutions are used in smartphones, tablets, customer premises equipment, USB dongles, routers, and M2M applications. The company sells its products directly or indirectly through distributors to original equipment manufacturers and original design manufacturers primarily in Taiwan, China, Korea and Japan, Europe, North America and South America. The company was formerly known as Global Communication Technology, Inc. GCT Semiconductor Holding, Inc. was founded in 1998 and is headquartered in San Jose, California.
Sector: Semiconductors & Related Devices
Industry: Semiconductors
GCT Semiconductor Holding, Inc.
| Date | Open | High | Low | Close | Volume |
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based on 91.97M shares outstanding
USGCT Semiconductor Holding, Inc., operates as a fabless semiconductor company, designs, develops, and markets integrated circuits for the wireless semiconductor industry.
The company provides RF and modem chipsets based on 4G LTE technology, including 4G LTE, 4.5G LTE Advanced, and 4.75G LTE Advanced-Pro.
It develops and sells cellular IoT chipsets for low-speed mobile networks such as eMTC/NB-IOT/Sigfox, and other network protocols; and 5G solutions.
Its products and solutions are used in smartphones, tablets, customer premises equipment, USB dongles, routers, and M2M applications.
The company sells its products directly or indirectly through distributors to original equipment manufacturers and original design manufacturers primarily in Taiwan, China, Korea and Japan, Europe, North America and South America.
The company was formerly known as Global Communication Technology, Inc. GCT Semiconductor Holding, Inc. was founded in 1998 and is headquartered in San Jose, California.
Leadership
Alex Sum
Senior Vice President of Sales and Marketing
Dr. Jeongmin Kim
Chief Technology Officer & Vice President of Engineering
Dr. Kukjin Chun
Dr. Kyeongho Lee
Co-Founder & Independent Chairman
Employees
126
Country
US
Sector
Technology
Website
gctsemi.com
| Insider | Title | Type | Shares | Value | Date |
|---|---|---|---|---|---|
 TUDER JEFFREY | Director | Grant/Award | 13.0K | -- | Sep 30, 2026 |
 Barker Robert | Director | Grant/Award | 13.0K | -- | Sep 30, 2026 |
 Lee Kyeongho | Director | Grant/Award | 13.0K | -- | Sep 30, 2026 |
 Shin Hyunsoo | Director | Grant/Award | 13.0K | -- | Sep 30, 2026 |
 Chun Kukjin | Director | Grant/Award | 13.0K | -- | Sep 30, 2026 |
 Chan Nelson | Director | Grant/Award | 13.0K | -- | Sep 30, 2026 |
| Name | Shares | % | Source |
|---|---|---|---|
 Anapass, Inc. 10% Owner | 8.0M | 8.7% | FORM 4 |
TD SECURITIES (USA) LLC · joint filing· may incl. warrants· filed May 2026 | 3.5M | 3.8% | 13G |
VANGUARD CAPITAL MANAGEMENT LLC | 3.0M | 3.3% | 13F |
TORONTO DOMINION BANK GCTS.WS | 2.4M | -- | 13F |
ARISTEIA CAPITAL, L.L.C. GCTS.WS | 2.1M | -- | 13F |
LMR Partners LLP GCTS.WS | 1.9M | -- | 13F |
RENAISSANCE TECHNOLOGIES LLC | 1.7M | 1.8% | 13F |
MARSHALL WACE, LLP | 1.3M | 1.4% | 13F |
BlackRock, Inc. | 1.3M | 1.4% | 13F |
 Lee Kyeongho Director | 1.1M | 1.2% | FORM 4 |
Insiders
- TUDER JEFFREYDirector
- Barker RobertDirector
- Lee KyeonghoDirector
- Shin HyunsooDirector
- Chun KukjinDirector
- Chan NelsonDirector
- Sum AlexSr. VP of Sales and Marketing
- Cheng EdmondChief Financial Officer
- Kim Jeong-MinChief Technology Officer
- Schlaefer JohnPresident, CEO & Class III Dir
based on 91.97M shares outstanding
US30d Avg
1.70M
60d Avg
1.61M
90d Avg
1.93M