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. NYSE:GCTS Technology · Semiconductors
AH Close $1.25 vs close AH Close $1.25 +1.63% vs close
All Press Release SEC Filings News
Press Release
Kratos Advances 5G NR NTN Ground System Development with Multi-Vendor Connectivity Success
Kratos demonstrated end-to-end connectivity across a native multi-vendor 5G NR Non-Terrestrial Network using its OpenSpace virtualized ground system.
GCT Semiconductor's GDM7275X-based 5G UE successfully performed cell search, registered with Druid Software's Raemis 5G Core, and established two-way communication, validating multi-vendor interoperability alongside partners KT SAT and Kratos.
For GCTS, the demonstration is a design-validation win for its 5G chipset in the emerging satellite NTN market, though the release announces no revenue or order commitments.
• 18d ago AI analysis › News
Sequans Communications (NYSE:SQNS) versus GCT Semiconductor (NYSE:GCTS) Head to Head Survey
defenseworld.net • 1mo ago SEC Filing
GCTS: 8-K · proxy statement
GCT Semiconductor Holding stockholders elected all of management's director nominees, Robert J. Barker and Hyunsoo Shin, at the company's 2026 Annual Meeting held September 17, 2026.
Vote support was broad: Barker received roughly 35.3 million votes for versus 3.5 million withheld, and Shin received about 38.7 million for versus only 161,000 withheld, with roughly 12.0 million broker non-votes.
Shareholders also ratified BPM LLP as the company's independent registered public accounting firm for the fiscal year ending December 31, 2026, by a vote of about 50.3 million for versus 312,000 against.
The filing contains no contested items or surprises and is a routine governance disclosure with minimal expected market impact for GCTS.
SEC 8-K • 1mo ago SEC Filing ⚠ 2
GCTS: 8-K · leadership change
On September 10, 2026, the Compensation Committee of GCT Semiconductor Holding approved an executive incentive bonus plan covering the second half of calendar 2026. Bonuses are cash awards determined by the company's achievement of specified 2026 revenue targets combined with each executive's individual KPI goals.
Each executive officer has a target bonus equal to 25% of base salary for the second half of 2026 at 100% performance, applied to CEO John Schlaefer, CFO Edmond Cheng, SVP of Sales & Marketing Alex Sum, and VP of Engineering/CTO Jeongmin Kim.
The committee also approved an increase to CFO Edmond Cheng's annual base salary from $304,500 to $330,383, effective October 1, 2026.
The full plan document will be filed as an exhibit to the company's Q3 2026 Form 10-Q. The disclosure is routine compensation housekeeping with no leadership change and no new financial data.
SEC 8-K • 1mo ago AI analysis › Press Release
GCT Semiconductor Forms Strategic Partnership to Advance Next-Generation UAV Control and Communications
GCT Semiconductor Holding announced a strategic partnership and license agreement with an unnamed infrastructure provider to advance UAV control and communication technologies.
The collaboration expands the companies' existing work in the utility sector into new verticals including defense, logistics, and security, integrating GCT's GDM7243i connectivity solution.
CEO John Schlaefer stated the partnership reflects GCT's commitment to delivering high-performance solutions for next-generation unmanned platforms across commercial and defense markets.
• 2mo ago AI analysis › News
GCT Semiconductor Q2 Earnings Call Highlights
marketbeat.com • 2mo ago News
GCT Semiconductor Holding, Inc. (GCTS) Q2 2026 Earnings Call Transcript
seekingalpha.com • 2mo ago SEC Filing ● Critical ⚠ 8
GCTS: 10-Q · periodic report
GCT Semiconductor Holding's Q2 2026 10-Q discloses substantial doubt about the company's ability to continue as a going concern, with only $30.2 million in cash against a $635.6 million accumulated deficit, a $52.0 million stockholders' deficit, and $55.1 million in total debt.
Quarterly revenue fell 18% year over year to $0.97 million while the net loss widened 51% to $20.4 million, driven largely by a $12.3 million mark-to-market loss on warrant liabilities; gross margin turned negative in the quarter with a $226 thousand gross loss.
Operations are being sustained through dilutive financing: the company raised $55.7 million gross through its at-the-market program in the first half of 2026, lifted ATM capacity from $75 million to $120 million, and retains up to $20 million each under Indigo and Obsidian convertible note facilities. Shares outstanding grew roughly 58% in six months to 92.0 million, with 41.9 million warrants and 20 million earnout shares still outstanding as further potential dilution.
Concentration and debt stress compound the risk: a single customer accounted for 60% of Q2 revenue, and the company pays 3% monthly penalties on past-due loans, including $1.5 million owed to related-party lender Kyeongho Lee as of June 30, 2026.
SEC 10-Q • 2mo ago AI analysis › Press Release ● Major ⚠ 3
GCT Semiconductor Holding, Inc. Provides Business Update and Reports Second Quarter 2026 Financial Results
GCT Semiconductor reported Q2 2026 revenue of $1.0 million, down 17.9% year-over-year, but highlighted a 71% sequential increase in 5G chipset shipments as the commercial ramp begins.
Liquidity strengthened significantly with cash and equivalents rising to $30.2 million, while the company amended its ATM agreement to increase the maximum offering amount to $120 million to support future growth.
GAAP net loss widened to $20.4 million, driven primarily by a $12.3 million non-cash loss related to warrant liability revaluation, while Adjusted EBITDA loss improved slightly to $6.6 million.
• 2mo ago AI analysis › SEC Filing ⚠ 2
GCTS: DEF 14A · proxy statement
GCT Semiconductor Holding, Inc. has scheduled its 2026 annual meeting of stockholders for September 17, 2026, to be held virtually. The Board is soliciting proxies for two proposals: the election of two Class II directors and the ratification of the independent registered public accounting firm.
Shareholders are asked to re-elect Robert J. Barker and Hyunsoo Shin as Class II directors to serve until the 2029 annual meeting. The Board recommends voting "FOR" each nominee and "FOR" the ratification of BPM LLP as the auditor for the fiscal year ending December 31, 2026.
The filing disclosed executive compensation for 2025, with CEO John Schlaefer receiving total compensation of $515,361. The proxy also noted compliance issues with Section 16(a) reporting, including one late filing by Mr. Schlaefer and two late filings by director Jeff Tuder.
SEC DEF 14A • 2mo ago Press Release
GCT Semiconductor Holding, Inc. to Give Business Update and Announce Second Quarter 2026 Financial Results on August 10, 2026
GCT Semiconductor Holding, Inc. announced that it will release its second quarter 2026 financial results on August 10, 2026, after the market closes.
The company will host a conference call and live webcast at 4:30 p.m. ET on the same day to review the results and provide a business update.
GCT is a fabless designer of 5G, 4G LTE, and satellite semiconductor solutions for devices including mobile hotspots, routers, and smartphones.
• 2mo ago AI analysis › Press Release
GCT Semiconductor Announces Strategic Commitment to Powering the AI-Edge Data Pipeline
GCT Semiconductor announced a strengthened strategic focus on powering the AI-edge data pipeline, leveraging its 5G, satellite, and NTN connectivity portfolio.
The initiative aims to expand the addressable market beyond traditional telecom into AI infrastructure, targeting higher-margin opportunities in satellite integration and spatial computing.
Key focus areas include AI wireless last-mile connectivity for robotics, enterprise IoT, and engagements with cloud providers and private 5G operators.
• 4mo ago AI analysis › SEC Filing ⚠ 2
GCTS: 8-K · prospectus supplement
GCT Semiconductor Holding filed a Form 8-K to submit a legal opinion regarding the validity of shares issuable under its At Market Issuance Sales Agreement. The opinion confirms that the company may offer and sell up to an aggregate of $120 million in common stock through this program.
The sales of these shares will be managed by sales agents B. Riley Securities and H.C. Wainwright & Co. This filing supports a prospectus supplement dated June 18, 2026, which supplements the company's effective shelf registration statement on Form S-3.
Morgan, Lewis & Bockius LLP provided the legal opinion, stating that the shares will be duly issued, fully paid, and non-assessable when delivered against payment.
SEC 8-K • 4mo ago SEC Filing ● Major ⚠ 3
GCTS: 424B5 · prospectus supplement
GCT Semiconductor Holding, Inc. has filed a prospectus supplement to increase its at-the-market (ATM) offering program by $45 million, bringing the total authorized offering amount to $120 million. The company had previously sold approximately $55.1 million in shares under the agreement as of June 15, 2026, leaving about $64.9 million in remaining capacity to be sold at market discretion.
Sales of the common stock will be conducted through B. Riley Securities, Inc. and H.C. Wainwright & Co., LLC, acting as sales agents. The agents will receive a commission of up to 3.0% on gross proceeds, and the company intends to use the net proceeds for general corporate purposes, including working capital and capital expenditures.
As of the filing date, there were approximately 90.96 million shares of common stock outstanding. The filing also highlights a significant warrant overhang, with 41.92 million warrants outstanding at a weighted-average exercise price of $7.37, well above the current trading price.
SEC 424B5 • 4mo ago AI analysis › Press Release
MaxLinear and GCT Semiconductor Partner to Develop Next-Generation 5G FWA and Converged Gateways
GCT Semiconductor and MaxLinear announced a strategic partnership to develop integrated 5G fixed wireless access (FWA) and converged gateway solutions for consumer and enterprise markets.
The collaboration combines MaxLinear’s Wi-Fi and network processing strengths with GCT’s cellular modem technology, creating an 'AnyWAN' solution that enables seamless migration between multiple WAN technologies.
The companies will showcase these integrated solutions at Computex Taipei in June, highlighting the growing demand for high-speed broadband and resilient multi-WAN connectivity driven by AI data flow.
• 4mo ago AI analysis › News
GCT Semiconductor Holding, Inc. (GCTS) Q1 2026 Earnings Call Transcript
seekingalpha.com • 5mo ago News
GCT Semiconductor Q1 Earnings Call Highlights
marketbeat.com • 5mo ago SEC Filing ⚠ 5
GCTS: 10-Q · periodic report
GCT Semiconductor Holding, Inc. reported a 287% year-over-year increase in net revenues to $1.9 million for the quarter ended March 31, 2026, driven primarily by the commercial launch of its 5G products. Despite the revenue growth, the company posted a net loss of $9.9 million, widening from a $7.0 million loss in the prior-year period, and continues to burn cash in operations.
The company disclosed substantial doubt about its ability to continue as a going concern due to an accumulated deficit of $615.3 million and a need to raise additional capital. However, liquidity improved during the quarter, with cash and cash equivalents rising to $7.2 million, bolstered by $12.7 million in gross proceeds from an at-the-market equity offering.
Debt remains a significant burden, with total borrowings standing at $52.7 million as of March 31, 2026, including loans from related parties and new convertible note facilities. Management stated that it will need to generate positive cash flows, renegotiate debt, or secure further financing to sustain operations beyond the next twelve months.
SEC 10-Q • 5mo ago AI analysis › SEC Filing ⚠ 3
GCTS: 8-K · earnings release
GCT Semiconductor reported first quarter 2026 financial results, showcasing a 287% year-over-year increase in total net revenue to $1.9 million. This growth was driven by a 58% sequential rise in 5G chipset shipments to 3,000 units, which management indicated signals the start of an anticipated commercial ramp.
The company expanded its licensing agreement with a major global satellite communications provider to include additional chipset integrations. Gross margin improved significantly to 49.3%, up from 17.7% in the prior year period, attributed to higher margins from service offerings and increased 5G platform sales.
Despite the revenue growth, GCT reported a net loss of $9.9 million for the quarter, compared to a net loss of $7.0 million in the same period last year. The company maintained liquidity with $7.2 million in cash and equivalents and reiterated its expectation for sequential quarterly growth in 5G shipments throughout 2026.
SEC 8-K • 5mo ago AI analysis › Press Release ● Major
GCT Semiconductor Holding, Inc. Provides Business Update and Reports First Quarter 2026 Financial Results
businesswire.com • 5mo ago News
GCT Semiconductor Q1 Preview: High-Risk, High-Reward Situation Worth Following
seekingalpha.com • 5mo ago Press Release
GCT Semiconductor Signs Reference Platform Contract with Major Satellite Communications Provider to Fast-Track Global 5G Deployment
businesswire.com • 5mo ago Press Release
GCT Semiconductor Holding, Inc. to Give Business Update and Announce First Quarter 2026 Financial Results on May 12, 2026
GCT Semiconductor Holding, Inc. announced it will release its first quarter 2026 financial results on Tuesday, May 12, 2026, after the market closes.
The company will host a conference call and live webcast at 4:30 p.m. ET on the same day to provide a business update and review the results.
GCT designs and supplies advanced 5G and 4G LTE semiconductor solutions, including system-on-chip platforms for various commercial devices.
• 5mo ago AI analysis › News
Head-To-Head Comparison: Navitas Semiconductor (NASDAQ:NVTS) vs. GCT Semiconductor (NYSE:GCTS)
defenseworld.net • 6mo ago News
IQE (OTCMKTS:IQEPF) versus GCT Semiconductor (NYSE:GCTS) Head-To-Head Contrast
defenseworld.net • 6mo ago News
GCT Semiconductor Holding, Inc. (GCTS) Q4 2025 Earnings Call Transcript
seekingalpha.com • 7mo ago Press Release ● Major
GCT Semiconductor Holding, Inc. Provides Business Update and Reports Fourth Quarter and Full Year 2025 Financial Results
businesswire.com • 7mo ago Recent SEC filings with analysis 
