Welcome to our dedicated page for GCT Semiconductor Holding SEC filings (Ticker: GCTS), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The GCT Semiconductor Holding, Inc. (NYSE: GCTS) SEC filings page on Stock Titan provides access to the company’s regulatory disclosures, along with AI-powered summaries that help explain the content of each filing. As a Delaware-incorporated, NYSE-listed fabless semiconductor company focused on 5G and 4G LTE system-on-chip solutions, GCT uses SEC reports to present details about its operations, financial condition, governance and financing arrangements.
Through this page, readers can review annual reports on Form 10-K and quarterly reports on Form 10-Q, which describe GCT’s product and service revenues, research and development spending, operating expenses, liquidity, debt levels and accumulated deficit. These filings also contain management’s discussion and analysis of business developments, including the transition of its 5G chipset from development and sampling to commercialization.
The filings page also surfaces current reports on Form 8-K, where GCT discloses material events such as business updates, financial results, loan agreements and convertible promissory note purchase agreements. For example, the company has filed 8-Ks describing a term loan facility with its largest shareholder and a convertible note facility with a financial investor, as well as 8-Ks furnishing press releases on quarterly financial results.
Investors can also find proxy statements on Schedule DEF 14A, which outline matters submitted to stockholders, including director elections, auditor ratification and approvals related to equity line facilities under New York Stock Exchange rules. Where applicable, insider transaction reports on Form 4 and other ownership-related filings can provide additional insight into equity holdings and changes.
Stock Titan’s interface combines real-time updates from EDGAR with AI-generated explanations that break down complex sections of long filings, highlight key terms in financing agreements, and clarify how new obligations or capital-raising activities relate to GCT’s 5G and 4G LTE semiconductor business. This helps users quickly understand the implications of new 10-Ks, 10-Qs, 8-Ks, proxy statements and other SEC documents for the GCTS stock.
GCT Semiconductor Holding, Inc. registered Warrants to purchase up to 500,000 shares of common stock and the up to 500,000 Warrant Shares issuable upon exercise of those Warrants under a prospectus supplement dated
The Warrants permit cash or cashless exercise (cashless exercises yield a net number of shares per the formula in the Warrants). The company will receive cash proceeds only if the Holder elects cash exercise. Shares outstanding were 72,468,938 as of February 27, 2026.
GCT Semiconductor Holding, Inc. disclosed that its subsidiary, GCT Semiconductor, Inc., amended an existing convertible promissory note with a strategic investor. The amendment extends the note’s maturity date to February 26, 2028, giving the company more time before repayment is due.
As consideration for entering into this amendment, the company agreed to issue the investor a warrant to purchase 500,000 shares of common stock at an exercise price of $2.50 per share, with a three‑year term from the issuance date.
TD Securities (USA) LLC has reported beneficial ownership of 3,693,107 shares of GCT Semiconductor Holding, Inc. common stock, equal to 6.1% of the class as of an event date of 12/31/2025. This position consists of 3,997 common shares plus 3,689,110 shares issuable upon exercise of warrants with an exercise price of $11.50 per share, which are presently exercisable.
The ownership percentage is calculated using 57,099,558 common shares outstanding as of September 30, 2025, as reported by GCT, plus the warrants. Related entities Toronto Dominion Holdings USA Inc., TD Group US Holdings LLC, and The Toronto-Dominion Bank may be deemed to have indirect interests through their ownership of TD Securities but each disclaims beneficial ownership except for any pecuniary interest. The securities are stated to be held in the ordinary course of business and not for the purpose of changing or influencing control of GCT.
GCT Semiconductor Holding, Inc. filed a current report to disclose that it has licensed its 5G and 4G chipsets to one of the world’s largest satellite communications providers. The company communicated this development through a press release that is included with the report as an exhibit.
The filing highlights a new technology licensing relationship in satellite communications, suggesting broader use of GCT’s wireless chipsets in non-terrestrial networks. Detailed commercial terms are contained in the referenced press release rather than this report.
GCT Semiconductor Holding, Inc. reported an equity award to one of its directors on a Form 4. On December 31, 2025, the director acquired 22,916 shares of common stock through a grant of restricted stock units (RSUs) at a stated price of $0 per share. After this grant, the director beneficially owned 117,809 shares of common stock in total on a direct basis.
Each RSU represents the right to receive one share of common stock after vesting. The number of shares subject to this award is based on dividing $27,500 by the fair market value of the stock on specific quarterly measurement dates; for the quarter ended December 31, 2025, the fair market value per share was determined to be $1.20. The RSUs are scheduled to vest on March 31, 2026, as long as the director continues in service through that date, and no expiration date applies to these RSUs.
GCT Semiconductor Holding, Inc. reported that a Class II director received a new equity award in the form of restricted stock units. On 12/31/2025, the director was granted 22,916 shares of common stock at a price of $0 per share, reported as common stock acquired in a direct ownership capacity.
The award is structured as RSUs, each representing one share of common stock that will be delivered after vesting, in line with a deferral election made by the director. The number of RSUs for this quarter was calculated by dividing $27,500 by the fair market value of the stock, which was $1.20 per share on 12/31/2025, rounded down to the nearest whole share. The RSUs are scheduled to vest on March 31, 2026, assuming the director continues in service through that date, and they have no expiration date.
GCT Semiconductor Holding, Inc. reported that a Class I director received an equity award of 22,916 restricted stock units (RSUs) of common stock on December 31, 2025 under the company’s 2024 Omnibus Incentive Compensation Plan. Each RSU represents one share of common stock, with no cash price on grant. The quarterly award size is based on dividing $27,500 by the fair market value per share; for this grant, the fair market value was $1.20 on December 31, 2025, resulting in 22,916 RSUs after rounding down. The RSUs are scheduled to vest on March 31, 2026, subject to continued service. Following this grant, the director beneficially owned 101,520 shares of common stock.
GCT Semiconductor Holding, Inc. reported an equity award to one of its directors in the form of restricted stock units (RSUs). On 12/31/2025, the director was granted 22,916 RSUs tied to the company’s common stock at a stated price of $0, increasing the director’s beneficial ownership to 105,255 shares.
Each RSU represents the right to receive one share of common stock after vesting and will be settled in stock under a deferral election made by the director. The number of RSUs for this award is determined quarterly from April 1, 2025 through March 31, 2026 by dividing $27,500 by the fair market value per share, which was $1.20 on 12/31/2025 for this portion. These RSUs are scheduled to vest on March 31, 2026, subject to the director’s continued service, and have no stated expiration date.
GCT Semiconductor Holding, Inc. reported an equity award for a director who also serves as Chairman and Class III Director. On December 31, 2025, the director was granted 22,916 restricted stock units (RSUs)$1.20 per share, representing a quarterly value of $27,500 for the award calculation period.
Each RSU represents the right to receive one share of common stock after vesting, and the units will vest on March 31, 2026, subject to continued service. Following this transaction, the director beneficially owned 1,062,741 shares of common stock directly. The RSUs are settled in stock according to a deferral election made by the reporting person and do not have an expiration date.
GCT Semiconductor Holding, Inc. reported an equity grant to a director in the form of restricted stock units (RSUs). On 12/31/2025, the Class II director received 22,916 shares of common stock as RSUs at a price of $0 per share under the GCT 2024 Omnibus Incentive Compensation Plan. Each RSU converts into one share of common stock after vesting, and the award is scheduled to vest on March 31, 2026, subject to continued service.
The number of RSUs for this quarter was determined by dividing $27,500 by the fair market value of the company’s common stock, which was $1.20 per share on December 31, 2025, rounded down to the nearest whole share. Following this grant, the reporting person beneficially owned 780,687 shares of GCT Semiconductor common stock directly.