GCTS GCT Semiconductor Holding, Inc.

CIK 0001851961 40 ready 8-Ks latest August 10, 2026, 5:05 PM ET RSS · JSON

Activity: NORMAL 1 filings / 30d vs 1 baseline

Ready 8-Ks 40

Latest filing August 10, 2026, 5:05 PM ET

Top materiality 0.85

Event mix other_material ×15 · earnings ×10 · m_and_a ×5

Sentiment 6 pos · 7 neg · 27 neu

Latest earnings ▼ miss 2026-Q2

Executive change recent →

SHENANIGAN SCORE 1 / 7 see the board

Recent 8-K filings for GCTS

Highest-materiality recent filing

GCT Semiconductor completes de-SPAC merger with Concord III; begins trading as GCTS

April 1, 2024, 7:59 PM ET M&A materiality 0.85 neutral item 1.01 item 2.01 item 9.01 item 3.02 item 3.03 item 5.01 item 5.02 item 5.03 item 5.06 item 7.01 item 8.01 ◈ Material Agreements ×5◈ Governance Changes ×3◈ executive_change ×2◈ M&A Transactions

Business Combination closed March 26, 2024; GCT survived as wholly-owned sub of Concord III, renamed GCT Semiconductor Holding.
Company value set at $350M; total equity consideration exchanged at $10.00 reference price.

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August 10, 2026, 5:05 PM ET earnings materiality 0.65 negative item 2.02 item 9.01

GCT Semiconductor Q2 2026 revenue down 17.9% to $1.0M; net loss widens to $20.4M

Net revenues $1.0M, down 17.9% YoY from $1.2M; gross margin negative.
May 12, 2026, 4:15 PM ET earnings materiality 0.65 positive item 2.02 item 9.01 ◈ Earnings Releases

GCT Semiconductor Q1 revenue up 287% YoY to $1.9M; 5G chipset shipments up 58% sequentially

Revenue $1.9M (+287% YoY); gross margin improved to 49.3% from 17.7%.
March 25, 2026, 7:59 PM ET earnings materiality 0.75 negative item 2.02 item 9.01 ◈ Earnings Releases ×2

GCT Semiconductor Q4 revenue $0.8M (-57.5% YoY); 5G chipset shipments exceed 1,900

Q4 revenue $0.8M (-57.5% YoY), FY2025 $2.9M (-68.6% YoY); gross margin negative as product revenue insufficient to absorb overhead.
February 25, 2026, 6:59 PM ET debt materiality 0.60 neutral item 1.01 item 9.01 ◈ Material Agreements ×2

GCT Semiconductor extends note maturity to 2028, issues warrant to Gogo for 500k shares at $2.50

Maturity of convertible note extended from 2026 to February 26, 2028.
January 29, 2026, 6:59 PM ET other material materiality 0.70 positive item 8.01 item 9.01

GCT licenses 5G/4G chipsets to major satellite provider for global connectivity

Licensed 5G and 4G chipsets to one of the world’s largest satellite communications providers.
November 12, 2025, 6:59 PM ET other material materiality 0.65 positive item 2.02 item 9.01

GCT reports Q3 revenue down 84% to $0.4M, highlights 5G chipset orders >2,500 units

Net revenues $0.4M vs $2.6M YoY; gross margin negative as overhead not absorbed by low revenue.
August 12, 2025, 7:59 PM ET earnings materiality 0.65 neutral item 2.02 item 9.01

GCT Semi posts Q2 revenue down 19% YoY; delivers initial 5G chipset samples, expects volume shipments in H2 2025

Net revenues $1.2M, down 19% YoY from $1.5M; gross margin fell to 32.0% from 62.7%.
June 6, 2025, 7:59 PM ET earnings materiality 0.65 negative item 8.01

GCT reports Q1 revenue down 85% to $0.5M; 5G chipset sampling begins May 2025

Net revenues $0.5M (-84.8% YoY); net loss $7.0M vs prior-year net income $0.8M (incl. $14.6M gain).
May 16, 2025, 7:59 PM ET other material materiality 0.70 neutral item 1.01 item 8.01 item 9.01

GCT Semiconductor raises $11M in registered direct offering of shares and warrants

Sold 7,006,370 shares and warrants for up to 10,509,555 shares at $1.57/unit; gross proceeds ~$11M.
May 14, 2025, 7:59 PM ET earnings materiality 0.75 negative item 2.02 item 9.01

GCT Q1 revenue $0.5M (-84.8% YoY); net loss $7.0M; 5G sampling starts end of May

Q1 net revenue $0.5M, down 84.8% YoY; net loss $7.0M vs net income $0.8M a year ago.
March 25, 2025, 7:59 PM ET earnings materiality 0.70 negative item 2.02 item 9.01

GCT Semiconductor Q4 revenue down 57% to $1.8M; net loss improves to $5.0M; 5G chipset shipments expected H1 2025

Net revenue $1.8M in Q4 2024, down 57.4% YoY from $4.2M; full year $9.1M down 43%.
January 29, 2025, 6:59 PM ET debt materiality 0.60 neutral item 1.01

GCT Semiconductor secures ₩6.5B ($4.5M) loan from Chairman at 12% interest, matures Feb 2025

Borrower GCT Research (wholly owned subsidiary) entered a Loan Agreement with Chairman Kyeongho Lee for up to ₩6.5B (≈$4.5M) at 12% annual interest.
November 14, 2024, 6:59 PM ET earnings materiality 0.60 neutral item 2.02 item 9.01

GCT Semiconductor Q3 revenue $2.6M, down 42% YoY; 5G chipset shipments H1 2025

Net revenues $2.6M, down 42% YoY from $4.5M, but up 78% sequentially; gross margin improved to 62% from 12%.
August 14, 2024, 7:59 PM ET earnings materiality 0.60 neutral item 2.02 item 9.01

GCT Semiconductor Q2 revenue $1.5M, down 65% YoY; 5G chipset on track for Q4 sampling

Net revenues $1.5M (down from $4.3M YoY); gross margin 63% vs 66%.
April 24, 2024, 7:59 PM ET other material materiality 0.65 neutral item 1.01 item 3.02 item 9.01 ◈ Material Agreements

GCT Semiconductor enters $50M common stock purchase agreement with B. Riley

Agreement to sell up to $50M in new shares to B. Riley Principal Capital II, at company's discretion, based on VWAP pricing.
April 1, 2024, 7:59 PM ET M&A materiality 0.85 neutral item 1.01 item 2.01 item 9.01 item 3.02 item 3.03 item 5.01 item 5.02 item 5.03 item 5.06 item 7.01 item 8.01 ◈ Material Agreements ×5◈ Governance Changes ×3◈ executive_change ×2◈ M&A Transactions

GCT Semiconductor completes de-SPAC merger with Concord III; begins trading as GCTS

Business Combination closed March 26, 2024; GCT survived as wholly-owned sub of Concord III, renamed GCT Semiconductor Holding.
February 29, 2024, 6:59 PM ET M&A materiality 0.80 neutral item 5.07 item 9.01 ◈ Shareholder Votes ×10

Concord Acquisition Corp III stockholders approve business combination with GCT Semiconductor

11,001,661 shares voted FOR the business combination; 0 against; 100% approval.
January 25, 2024, 6:59 PM ET regulatory materiality 0.65 negative item 3.01 item 7.01 item 9.01 ◈ Listing & Compliance Notices

Concord Acquisition Corp III receives NYSE noncompliance notice for fewer than 300 public stockholders

NYSE notice dated Jan 19, 2024; Company has fewer than 300 public stockholders, violating Section 802.01B.
November 13, 2023, 6:59 PM ET other materiality 0.60 neutral item 1.01 item 5.03 item 5.07 item 8.01 item 9.01 ◈ Governance Changes◈ Material Agreements◈ Shareholder Votes

Concord Acquisition Corp III shareholders approve extension to August 2024

Approved charter amendment extending business combination deadline from Nov 8, 2023 to Aug 8, 2024.
November 8, 2023, 6:59 PM ET M&A materiality 0.85 neutral item 1.01 item 3.02 item 9.01 ◈ Material Agreements

Concord Acquisition Corp III enters $350M business combination with GCT Semiconductor

SPAC CNDB to merge with GCT; target valued at $350M (adjusted for debt and cash).
November 3, 2023, 7:59 PM ET M&A materiality 0.85 positive item 7.01 item 9.01

Concord Acquisition Corp III to merge with GCT Semiconductor at $661M valuation, up to $87M proceeds

Pro forma valuation of GCT at $661M including 20.0M performance-based earnout shares.
October 31, 2023, 7:59 PM ET other material materiality 0.60 neutral item 7.01

Concord Acquisition Corp III special meeting Nov 6 to extend deadline to Aug 2024; trust $43.3M (~$10.69/share)

Special meeting on Nov 6, 2023 to approve extending business combination deadline from Nov 8, 2023 to Aug 8, 2024.
October 30, 2023, 7:59 PM ET other material materiality 0.65 neutral item 7.01 item 9.01

Concord Acquisition III plans non-redemption deals; Sponsor to convert 8.6M Class B shares for extension

Special meeting to approve charter amendment extending business combination deadline to Aug 8, 2024.
May 8, 2023, 7:59 PM ET other material materiality 0.85 negative item 1.01 item 5.03 item 5.07 item 8.01 item 9.01 ◈ Governance Changes◈ Material Agreements◈ Shareholder Votes

Concord Acquisition Corp III shareholders approve extension; 88% of Class A shares redeemed, trust nearly depleted

Shareholders approved charter amendment to extend business combination deadline from May 8, 2023 to Nov 8, 2023; 33,891,464 for, 2,670,391 against.
November 15, 2021, 6:59 PM ET other material materiality 0.60 neutral item 8.01 item 9.01

Concord Acquisition Corp III completes $345M IPO, deposits $351.9M in trust

Sold 34.5M units at $10 each, including full over-allotment exercise, gross $345M.
November 9, 2021, 6:59 PM ET other material materiality 0.75 neutral item 1.01 item 2.03 item 3.02 item 5.02 item 5.03 item 8.01 item 9.01 ◈ executive_change ×3

Concord Acquisition Corp III closes upsized $345M IPO, full over-allotment exercised

Gross proceeds of $345M from 34.5M units at $10/unit, including 4.5M over-allotment units.