$GCTS

GCT Semiconductor Holding, Inc. (GCTS) filed an SEC Form 8-K — Results of Operations and Financial Condition. Exhibit 99.1 GCT Semiconductor Holding, Inc. Provides Business Update and Reports Third Quarter 2026 Financial Results Year-to-Date 5G Chipset Shipments Exceeded 11,300 Units SAN JOSE, CA – November 12, 2026 – GCT Semiconductor Holding, Inc. (“GCT” or the “Company”) (NYSE: GCTS),

GCT Semiconductor Holding (GCTS) reported a 149% year-over-year revenue increase in Q3, though no absolute figure was provided. The company expects its 5G chipset shipments to extend into the first half of 2027 due to slower customer implementation.

GCT Semiconductor Holding, Inc. (GCTS) filed an SEC Form 8-K — Submission of Matters to a Vote of Security Holders. Item 5.07 Submission of Matters to a Vote of Security Holders The 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of GCT Semiconductor Holding, Inc. (the “Company”) was held on September 17, 2026. At the Annual Meeting, the Company’s stockholders voted on two proposals

GCT Semiconductor Holding, Inc. (GCTS) filed an SEC Form 8-K — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers. Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. Executive Incentive Bonus Plan On September 10, 2026, the Compensation Committee of the Board of Directors (the “Compensati

GCT Semiconductor (GCTS) partnered with a leading infrastructure provider to advance UAV control and communication tech. They will integrate GCT's GDM7243i connectivity solution and IoT module, expanding into defense and mission-critical applications. The companies have a history of collaboration in the utility sector.

GCT Semiconductor Holding, Inc. reported Q2 2026 results via an earnings call, saying the quarter was a transition toward commercialization. Management cited macro-driven customer schedule shifts and restructurings that delayed revenue. It expects H2 2026 5G chipset shipments to exceed H1, with wafer capacity through Q1 2027. Cash burn is projected at $9m to $9.5m per quarter; it amended its ATM program to raise proceeds to $120m.

GCT Semiconductor reported that its 5G RF chipset shipments rose 70% sequentially in Q2 to 5,100 units, after initial customer production orders began about eight months earlier. The company attributed the increase to demand across terrestrial broadband, satellite and NTN connectivity, and IoT/specialized networks, and said it expects higher 5G shipments in July to December than in the first half.

GCT Semiconductor Holding, Inc. (GCTS) filed an SEC Form 8-K — Results of Operations and Financial Condition. Exhibit 99.1 GCT Semiconductor Holding, Inc. Provides Business Update and Reports Second Quarter 2026 Financial Results 5G Chipset Shipments in Q2 2026 Increased Approximately 71% Sequentially SAN JOSE, CA – August 10, 2026 – GCT Semiconductor Holding, Inc. (“GCT” or the “Company

GCT Semiconductor Holding, Inc. (GCTS) filed an SEC Form 8-K — Results of Operations and Financial Condition. false 0001851961 SUITE 201 false 0001851961 2026-06-18 2026-06-18 0001851961 us-gaap:CommonStockMember 2026-06-18 2026-06-18 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange

GCT Semiconductor Holding (NYSE:GCTS) and MaxLinear (MXL) announced a strategic partnership to develop integrated 5G fixed wireless access and converged gateways for consumer and enterprise use, to be demonstrated at Computex Taipei June 2-5. The firms said they will combine MaxLinear Wi‑Fi/network processing with GCT 5G/LTE tech using AnyWAN integration. GCT also reported Q1 revenue of $1.9M vs $1.8M consensus and said it expects sequential 5G shipment growth in 2026.