GCTS on NYSE
GCT Semiconductor Holding, Inc.
GCT Semiconductor Holding, Inc. is an American semiconductors and related devices company, incorporated in Delaware.1 It is headquartered in San Jose, California.1 Its shares trade on NYSE under the symbol GCTS.1
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Last updated Oct 21, 2026.
Overview
Compare with Rubicon Technology, Semilux International Ltd. or Nano Labs Ltd, or pick any stock.
Financials
From the company’s reports to the SEC. Every number links to the filing it came from.
Key numbers, fiscal 2025
-63.4%Gross margin3
-1274.9%Operating margin3
-1513.3%Net margin3
-68.6%Revenue growth, 20253
-$33.1MFree cash flow3
What sells
Revenue by product, business segment and region, as the company reports it to the SEC.
Products and services
Service brought in 61% of the revenue GCT Semiconductor Holding, Inc. broke down this way in fiscal 2025.
Products and services by year
| Products and services | 2024 | 2025 |
|---|---|---|
| Service | $4.4M | $1.7M |
| Product | $4.8M | $1.1M |
Regions
United States brought in 56% of the revenue GCT Semiconductor Holding, Inc. broke down this way in fiscal 2025.
Regions by year
| Regions | 2024 | 2025 |
|---|---|---|
| United States | $4.2M | $1.6M |
| Taiwan | $195.0K | $629.0K |
| [Canada] | $322.0K | $411.0K |
| DEMember | $944.0K | $142.0K |
| South Korea | $3.5M | $82.0K |
Where the money goes
Where each dollar of revenue went, fiscal 2025
- Cost of revenue18¢$4.7M
- Research and development55¢$14.0M
- Interest24¢$6.0M
- Income tax4¢$902.0K
Out of $2.9M in revenue.3 The company lost money this year.
Financial statements
Every line of the income statement as filed: the last 2 fiscal years, latest first.3
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Total net revenues | $2.9M | $9.1M |
| Total cost of net revenues | $4.7M | $4.1M |
| Gross profit (loss) | -$1.8M | $5.1M |
| Research and development | $14.0M | $17.3M |
| Sales and marketing | $4.2M | $3.9M |
| General and administrative | $16.5M | $10.8M |
| Gain on extinguishment of liability | $0 | -$14.6M |
| Loss on impairment of long-lived assets | $0 | $787.0K |
| Total operating expenses | $34.7M | $18.2M |
| Loss from operations | -$36.5M | -$13.1M |
| Interest expense | -$6.0M | -$3.9M |
| Gain (loss) on foreign currency transactions, net | -$784.0K | $4.7M |
| Change in fair value of common stock warrant liabilities | $880.0K | $2.2M |
| Change in fair value of convertible promissory notes | -$336.0K | -$1.5M |
| Change in fair value of common stock forward liability | $312.0K | -$586.0K |
| Other income, net | $24.0K | $213.0K |
| Loss before provision for income taxes | -$42.5M | -$11.9M |
| Provision for income taxes | $902.0K | $445.0K |
| Net loss | -$43.4M | -$12.4M |
| Net loss per common share - basic | -$0.82 | -$0.30 |
| Net loss per common share - diluted | -$0.82 | -$0.30 |
| Weighted average number of common shares used in computing net loss per common share - basic | 52.9M shares | 40.6M shares |
| Weighted average number of common shares used in computing net loss per common share - diluted | 52.9M shares | 40.6M shares |
No quarter-by-quarter statement was filed.
Every line of the balance sheet as filed: the last 4 fiscal years (annual) or 4 quarters (quarterly), latest first.3
| Period ending | 2025-12-31 | 2024-12-31 | 2024-03-31 | 2023-12-31 |
|---|---|---|---|---|
| Cash and cash equivalents | $590.0K | $1.4M | ||
| Accounts receivable, net | $2.6M | $5.7M | ||
| Inventory | $947.0K | $3.0M | ||
| Contract assets | $5.4M | $5.1M | $3.4M | |
| Prepaid expenses and other current assets | $2.3M | $2.3M | ||
| Total current assets | $11.9M | $17.6M | ||
| Property and equipment, net | $2.7M | $869.0K | ||
| Operating lease right-of-use assets | $708.0K | $849.0K | ||
| Intangibles, net | $0 | $65.0K | ||
| Other assets | $381.0K | $523.0K | ||
| Total assets | $15.6M | $19.9M | ||
| Accounts payable | $628.0K | $1.0M | ||
| Contract liabilities | $0 | $48.0K | ||
| Accrued and other current liabilities | $21.7M | $21.2M | ||
| Common stock forward liability | $3.0K | $315.0K | ||
| Borrowings | $56.6M | $37.6M | ||
| Operating lease liabilities, current | $686.0K | $697.0K | ||
| Total current liabilities | $79.6M | $60.9M | ||
| Convertible promissory notes, net of current | $6.0M | $4.9M | ||
| Net defined benefit liabilities | $7.6M | $7.1M | ||
| Long-term operating lease liabilities | $41.0K | $177.0K | ||
| Other taxes payable | $2.3M | $2.1M | ||
| Warrant liabilities | $2.9M | $3.8M | ||
| Other liabilities | $531.0K | $285.0K | ||
| Total liabilities | $98.9M | $79.2M | ||
| Common stock, par value $0.0001 per share; 400,000 shares authorized as of December 31, 2025 and 2024; 58,137 and 47,987 shares issued and outstanding as of December 31, 2025 and 2024, respectively | $6.0K | $5.0K | ||
| Additional paid-in capital | $520.9M | $501.2M | ||
| Accumulated other comprehensive income | $1.2M | $1.5M | ||
| Accumulated deficit | -$605.4M | -$562.0M | ||
| Total stockholders' deficit | -$83.3M | -$59.3M | -$115.4M | |
| Total liabilities and stockholders' deficit | $15.6M | $19.9M | ||
| Preferred stock, par value | $0.00 | $0.00 | ||
| Preferred Stock, Shares Authorized | 40.0M shares | 40.0M shares | ||
| Preferred stock, shares issued | 0 shares | 0 shares | ||
| Preferred stock, shares outstanding | 0 shares | 0 shares | ||
| Common stock, par value per share | $0.00 | $0.00 | ||
| Common Stock, Shares Authorized | 400.0M shares | 400.0M shares | ||
| Common stock, shares issued | 58.1M shares | 48.0M shares | 45.8M shares | |
| Common stock, shares outstanding | 58.1M shares | 48.0M shares |
| Period ending | 2025-12-31 | 2024-12-31 | 2024-03-31 | 2023-12-31 |
|---|---|---|---|---|
| Cash and cash equivalents | $590.0K | $1.4M | ||
| Accounts receivable, net | $2.6M | $5.7M | ||
| Inventory | $947.0K | $3.0M | ||
| Contract assets | $5.4M | $5.1M | $3.4M | |
| Prepaid expenses and other current assets | $2.3M | $2.3M | ||
| Total current assets | $11.9M | $17.6M | ||
| Property and equipment, net | $2.7M | $869.0K | ||
| Operating lease right-of-use assets | $708.0K | $849.0K | ||
| Intangibles, net | $0 | $65.0K | ||
| Other assets | $381.0K | $523.0K | ||
| Total assets | $15.6M | $19.9M | ||
| Accounts payable | $628.0K | $1.0M | ||
| Contract liabilities | $0 | $48.0K | ||
| Accrued and other current liabilities | $21.7M | $21.2M | ||
| Common stock forward liability | $3.0K | $315.0K | ||
| Borrowings | $56.6M | $37.6M | ||
| Operating lease liabilities, current | $686.0K | $697.0K | ||
| Total current liabilities | $79.6M | $60.9M | ||
| Convertible promissory notes, net of current | $6.0M | $4.9M | ||
| Net defined benefit liabilities | $7.6M | $7.1M | ||
| Long-term operating lease liabilities | $41.0K | $177.0K | ||
| Other taxes payable | $2.3M | $2.1M | ||
| Warrant liabilities | $2.9M | $3.8M | ||
| Other liabilities | $531.0K | $285.0K | ||
| Total liabilities | $98.9M | $79.2M | ||
| Common stock, par value $0.0001 per share; 400,000 shares authorized as of December 31, 2025 and 2024; 58,137 and 47,987 shares issued and outstanding as of December 31, 2025 and 2024, respectively | $6.0K | $5.0K | ||
| Additional paid-in capital | $520.9M | $501.2M | ||
| Accumulated other comprehensive income | $1.2M | $1.5M | ||
| Accumulated deficit | -$605.4M | -$562.0M | ||
| Total stockholders' deficit | -$83.3M | -$59.3M | -$115.4M | |
| Total liabilities and stockholders' deficit | $15.6M | $19.9M | ||
| Preferred stock, par value | $0.00 | $0.00 | ||
| Preferred Stock, Shares Authorized | 40.0M shares | 40.0M shares | ||
| Preferred stock, shares issued | 0 shares | 0 shares | ||
| Preferred stock, shares outstanding | 0 shares | 0 shares | ||
| Common stock, par value per share | $0.00 | $0.00 | ||
| Common Stock, Shares Authorized | 400.0M shares | 400.0M shares | ||
| Common stock, shares issued | 58.1M shares | 48.0M shares | 45.8M shares | |
| Common stock, shares outstanding | 58.1M shares | 48.0M shares |
Cash flow is reported year to date, not quarter by quarter, so there are no separate quarterly figures.
Every line of the cash flow as filed: the last 2 fiscal years, latest first.3
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Net loss | -$43.4M | -$12.4M |
| Depreciation and amortization | $744.0K | $691.0K |
| Loss on impairment of long-lived assets | $787.0K | |
| Amortization of right-of-use assets | $707.0K | $634.0K |
| Stock-based compensation | $6.3M | $2.7M |
| Issuance of common stock to underwriter | $667.0K | |
| Change in provision for credit losses | $2.8M | -$431.0K |
| Change in fair value of warrant liabilities | -$880.0K | -$2.2M |
| Change in fair value of convertible promissory notes | $336.0K | $1.5M |
| Change in fair value of common stock forward liability | -$312.0K | $586.0K |
| Gain on extinguishment of liability | $0 | -$14.6M |
| Accounts receivable | $330.0K | -$339.0K |
| Inventory | $2.0M | -$1.5M |
| Contract assets | -$325.0K | -$1.7M |
| Prepaid expenses and other current assets | $187.0K | $1.1M |
| Other assets | $142.0K | -$327.0K |
| Accounts payable | -$402.0K | -$2.6M |
| Contract liabilities | -$48.0K | |
| Accrued and other current liabilities | $1.2M | -$3.2M |
| Net defined benefit liabilities | $536.0K | $480.0K |
| Other taxes payable | -$23.0K | $91.0K |
| Lease liabilities | -$917.0K | -$620.0K |
| Other liabilities | $244.0K | -$233.0K |
| Net cash used in operating activities | -$30.7M | -$31.0M |
| Purchases of property and equipment | -$2.4M | -$542.0K |
| Net cash used in investing activities | -$2.4M | -$542.0K |
| Proceeds from reverse recapitalization and PIPE Financing, net of transaction costs | $17.2M | |
| Proceeds from issuance of convertible promissory notes | $1.9M | $16.3M |
| Proceeds from borrowings | $21.8M | $11.9M |
| Proceeds from issuance of common stock under common stock purchase agreement | $190.0K | $8.5M |
| Proceeds from issuance of common stock under at-market agreement | $2.3M | |
| Proceeds from issuance of common stock and common stock warrants in a private placement | $2.2M | |
| Proceeds from issuance of common stock and common stock warrants in a registered direct offering | $11.0M | |
| Proceeds from exercise of stock options | $21.0K | $15.0K |
| Payment of common stock issuance costs | -$1.2M | |
| Tax withholding on restricted stock units | -$11.0K | |
| Repayments of borrowings | -$3.7M | -$14.1M |
| Repayments of convertible promissory notes | -$5.6M | |
| Net cash provided by financing activities | $32.2M | $36.5M |
| Effect of exchange rate changes on cash and cash equivalents | -$5.0K | -$3.8M |
| Net increase (decrease) in cash and cash equivalents | -$845.0K | $1.2M |
| Cash paid for interest | $5.9M | $5.2M |
| Cash paid for income taxes | $324.0K | $269.0K |
| Cash paid for operating leases | $728.0K | $744.0K |
| Issuance of common stock from conversion of convertible promissory notes | $1.1M | $41.2M |
| Settlement of common stock forward liability in equity | $271.0K | |
| Proceeds from issuance of common stock withheld for outstanding payables | $975.0K | |
| Operating lease right-of-use assets obtained in exchange for operating lease liabilities | $549.0K | $54.0K |
| Purchase of property and equipment in accrued expenses and other current liabilities | $58.0K |
No quarter-by-quarter statement was filed.
Compare GCT Semiconductor Holding, Inc. with another company
Corporate structure
GCT Semiconductor Holding, Inc. sits at the top of its group. 1 entity, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.
Major holders of GCT Semiconductor Holding, Inc.
- TD SECURITIES (USA) LLC Filed SCHEDULE 13G/A on GCT Semiconductor Holding, Inc., latest May 15, 2026 (4 filings since Feb 14, 2025)
- SUNP Corp Filed SCHEDULE 13G/A on GCT Semiconductor Holding, Inc., latest Aug 22, 2025 (2 filings since Apr 15, 2025)
- Concord Sponsor Group III LLC Filed SCHEDULE 13G/A on GCT Semiconductor Holding, Inc., latest Mar 28, 2025 (2 filings since Feb 14, 2022)
- MOORE CAPITAL MANAGEMENT, LP Filed SC 13G/A on GCT Semiconductor Holding, Inc., latest Nov 14, 2024 (2 filings since Feb 14, 2024)
- PERISCOPE CAPITAL INC. Filed SC 13G/A on GCT Semiconductor Holding, Inc., latest Nov 13, 2024 (2 filings since Feb 9, 2024)
- Walleye Capital LLC Filed SC 13G/A on GCT Semiconductor Holding, Inc., latest Nov 13, 2024 (2 filings since Feb 14, 2024)
- COWEN AND COMPANY, LLC Filed SC 13G on GCT Semiconductor Holding, Inc., latest Nov 12, 2024
- Harraden Circle Investments, LLC Filed SC 13G/A on GCT Semiconductor Holding, Inc., latest Nov 12, 2024 (3 filings since Nov 9, 2023)
- Radcliffe Capital Management, L.P. Filed SC 13G/A on GCT Semiconductor Holding, Inc., latest Jun 28, 2024 (2 filings since May 9, 2023)
- Anapass, Inc. Filed SC 13G/A on GCT Semiconductor Holding, Inc., latest May 3, 2024 (2 filings since Apr 3, 2024)
- Global Coretech Growth Fund 1 Filed SC 13G/A on GCT Semiconductor Holding, Inc., latest Apr 29, 2024 (2 filings since Apr 5, 2024)
- METEORA CAPITAL, LLC Filed SC 13G/A on GCT Semiconductor Holding, Inc., latest Mar 11, 2024 (2 filings since Feb 14, 2024)
- GCT Semiconductor Holding, Inc. San Jose, California
Built from major holders from Schedules 13D and 13G. Each entity in the chart links to its source.
What it owns
What GCT Semiconductor Holding, Inc. reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.
Property and equipment
| Item | Latest | A year before | Change |
|---|---|---|---|
| Property and equipment, before depreciation | $18.7M3 Dec 31, 2025 | $16.0M3 Dec 31, 2024 | +16.7% |
| Accumulated depreciation | $16.0M3 Dec 31, 2025 | $15.2M3 Dec 31, 2024 | +5.8% |
| Property and equipment, net | $2.7M3 Dec 31, 2025 | $869.0K3 Dec 31, 2024 | +207.4% |
| Operating-lease assets (leased space) | $708.0K3 Dec 31, 2025 | $849.0K3 Dec 31, 2024 | −16.6% |
Investments
| Item | Latest | A year before | Change |
|---|---|---|---|
| Cash and cash equivalents | $590.0K3 Dec 31, 2025 | $1.4M3 Dec 31, 2024 | −58.9% |
Intangibles and goodwill
| Item | Latest | A year before | Change |
|---|---|---|---|
| Finite-lived intangibles, net | $03 Dec 31, 2025 | $65.0K3 Dec 31, 2024 | −100.0% |
Inventory
| Item | Latest | A year before | Change |
|---|---|---|---|
| Inventory, total | $947.0K3 Dec 31, 2025 | $3.0M3 Dec 31, 2024 | −68.2% |
| Work in process | $196.0K3 Dec 31, 2025 | $224.0K3 Dec 31, 2024 | −12.5% |
| Finished goods | $543.0K3 Dec 31, 2025 | $1.7M3 Dec 31, 2024 | −68.9% |
Properties, in its own words
Our principal executive offices are located in San Jose, California, and consist of approximately 5,900 square feet under a lease that expires in October 2026. This facility accommodates our product marketing and finance and administrative activities as well as a small research and development team. We have an approximately 56,500 square-foot facility in Seoul, Korea, which accommodates a research and development center under a lease expiring in December 2026. We have an approximately 100 square-foot facility in Taipei, Taiwan, which houses sales and technical support personnel, under a lease that expires in July 2026. We also have an approximately 850 square-foot facility in Shanghai, China, for sales and technical support personnel under a lease that expires in July 2026 and an approximately 720 square-foot facility in Shenzhen, China, which accommodates sales and technical support personnel, under a lease that expires in June 2028.
We do not own any real property. We believe that our leased facilities are adequate to meet our current needs and that additional facilities will be available on suitable, commercially reasonable terms to accommodate any future needs.
Item 2 of the 10-K filed Mar 25, 2026.9
Leadership
Who has led GCT Semiconductor Holding, Inc., and when. Pick a name to see everywhere that person has worked.
Chief executive
Chair
President
Chief financial officer
2025
- Chief executive officerJohn Schlaefer Mar 27, 2024 to now10
- Chief executive officerJeffrey Tuder Nov 3, 2021 to Nov 3, 202111
- ChairKyeongho Lee Mar 27, 2024 to Mar 27, 202412
- PresidentJohn Schlaefer Mar 27, 2024 to now10
- Chief financial officerEdmond Cheng Mar 27, 2024 to now13
- Chief financial officerMichele Cito Nov 3, 2021 to Nov 3, 202114
Board members and other officers (11)
- VP of Marketing and SalesAlex Sum Mar 27, 2024 to now15
- Vice President of FinanceDavid Yoon Mar 27, 2024 to Mar 27, 202416
- VP of Engineering & CTOJeemee Kim Mar 27, 2024 to now17
- Board memberJohn Schlaefer Mar 27, 2024 to now10
- Board memberKukjin Chun Mar 27, 2024 to now18
- Board memberKyeongho Lee Mar 27, 2024 to now19
- Board memberNelson C. Chan Mar 28, 2024 to now20
- Board memberJeffrey Tuder Nov 3, 2021 to now11
- Board memberLawrence E. Leibowitz Nov 3, 2021 to Nov 17, 202321
- Board memberPeter Ort Nov 3, 2021 to Nov 17, 202322
- Board memberThomas C. King Nov 3, 2021 to Nov 17, 202323
Former names
- Concord Acquisition Corp IIIMar 26, 2021 to Mar 28, 20242
Timeline
- Sep 18, 20268-K Shareholder vote24
- Sep 15, 20268-K Executive or director change25
- Aug 10, 20268-K Results of operations26
- Jun 18, 20268-K Results of operations27
- Jun 18, 20268-K Other events28
- May 12, 20268-K Results of operations29
- Mar 25, 20268-K Results of operations30
- Feb 25, 20268-K Entered a material agreement31
- Jan 29, 20268-K Other events32
- Dec 15, 20258-K Entered a material agreement; New debt or obligation33
- Nov 12, 20258-K Results of operations34
- Sep 19, 20258-K Shareholder vote35
- Mar 27, 2024New chief executive John Schlaefer becomes CEO10
- Nov 3, 2021New chief executive Jeffrey Tuder becomes CEO11
Calendar
Coming up
- Nov 11, 2026Reports results for the quarter ending Sep/2026 A year earlier it reported ($0.25) a share, on Nov 12, 2025.36
When it reported results
- Aug 10, 2026Reported quarterly or annual results26
- Jun 18, 2026Reported quarterly or annual results27
- May 12, 2026Reported quarterly or annual results29
- Mar 25, 2026Reported quarterly or annual results30
- Nov 12, 2025Reported quarterly or annual results34
- Aug 12, 2025Reported quarterly or annual results37
- May 14, 2025Reported quarterly or annual results38
- Mar 25, 2025Reported quarterly or annual results39
Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar
Filings
331 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 42 major events, 124 insider forms, 44 large holders, 101 other. The latest 20:
- Oct 2, 20264 EDGAR
- Oct 2, 20264 EDGAR
- Oct 2, 20264 EDGAR
- Oct 2, 20264 EDGAR
- Oct 2, 20264 EDGAR
- Oct 2, 20264 EDGAR
- Sep 18, 20268-K CURRENT REPORT EDGAR
- Sep 15, 20268-K CURRENT REPORT EDGAR
- Sep 14, 20264 EDGAR
- Sep 14, 20264 EDGAR
- Sep 14, 20264 EDGAR
- Sep 14, 20264 EDGAR
- Aug 10, 202610-Q EDGAR
- Aug 10, 20268-K CURRENT REPORT EDGAR
- Aug 3, 2026DEF 14A EDGAR
- Aug 3, 2026ARS EDGAR
- Aug 3, 2026DEFA14A EDGAR
- Jul 7, 20264 EDGAR
- Jul 2, 20264 EDGAR
- Jul 2, 20264 EDGAR
The 331 filings since October 2021 can be filtered by form type and year here when JavaScript is on.
Every filing from the last five years, summarized. The full record is on SEC EDGAR.
Insider trades
13 open-market trades by officers, directors and large owners since October 2021: 13 buys and 0 sales. Grants, option exercises and gifts are left out.
| Date | Who | Trade | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|
| Nov 25, 2025 | Shin HyunsooDirector | Buy | 16,725 | $1.28 | $21.4K | Form 4 |
| Nov 21, 2025 | Shin HyunsooDirector | Buy | 3,180 | $1.28 | $4.1K | Form 4 |
| Nov 20, 2025 | Shin HyunsooDirector | Buy | 25,453 | $1.28 | $32.6K | Form 4 |
| Sep 12, 2025 | Shin HyunsooDirector | Buy | 44,067 | $1.51 | $66.5K | Form 4 |
| Sep 5, 2025 | Shin HyunsooDirector | Buy | 10,300 | $1.30 | $13.4K | Form 4 |
| Sep 4, 2025 | Shin HyunsooDirector | Buy | 8,250 | $1.26 | $10.4K | Form 4 |
| Aug 15, 2025 | Shin HyunsooDirector | Buy | 121,000 | $1.26 | $152.5K | Form 4 |
| Jun 10, 2025 | Shin HyunsooDirector | Buy | 85,000 | $1.18 | $100.2K | Form 4 |
| Jun 5, 2025 | Shin HyunsooDirector | Buy | 80,000 | $1.03 | $82.2K | Form 4 |
| Jun 4, 2025 | Shin HyunsooDirector | Buy | 80,000 | $1.02 | $81.6K | Form 4 |
| May 23, 2025 | Shin HyunsooDirector | Buy | 77,000 | $1.04 | $80.1K | Form 4 |
| May 20, 2025 | Shin HyunsooDirector | Buy | 86,000 | $1.18 | $101.5K | Form 4 |
| Sep 26, 2024 | Anapass, Inc.10% owner | Buy | 741,603 | $3.02 | $2.2M | Form 4 |
From Forms 4 filed with the SEC.
Major holders
Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.
- TD SECURITIES (USA) LLCSCHEDULE 13G/A, 4 filings Feb 14, 2025 to May 15, 202640
- SUNP CorpSCHEDULE 13G/A, 2 filings Apr 15, 2025 to Aug 22, 202541
- Concord Sponsor Group III LLCSCHEDULE 13G/A, 2 filings Feb 14, 2022 to Mar 28, 202542
- MOORE CAPITAL MANAGEMENT, LPSC 13G/A, 2 filings Feb 14, 2024 to Nov 14, 202443
- PERISCOPE CAPITAL INC.SC 13G/A, 2 filings Feb 9, 2024 to Nov 13, 202444
- Walleye Capital LLCSC 13G/A, 2 filings Feb 14, 2024 to Nov 13, 202445
- COWEN AND COMPANY, LLCSC 13G, 1 filing Nov 12, 202446
- Harraden Circle Investments, LLCSC 13G/A, 3 filings Nov 9, 2023 to Nov 12, 202447
- Radcliffe Capital Management, L.P.SC 13G/A, 2 filings May 9, 2023 to Jun 28, 202448
- Anapass, Inc.SC 13G/A, 2 filings Apr 3, 2024 to May 3, 202449
- Global Coretech Growth Fund 1SC 13G/A, 2 filings Apr 5, 2024 to Apr 29, 202450
- METEORA CAPITAL, LLCSC 13G/A, 2 filings Feb 14, 2024 to Mar 11, 202451
- 683 Capital Management, LLCSC 13G/A, 2 filings Nov 17, 2021 to Feb 14, 202452
- RIVERNORTH CAPITAL MANAGEMENT, LLCSC 13G, 1 filing Feb 14, 202453
- Mizuho Financial GroupSC 13G, 1 filing Feb 13, 202454
- Saba Capital Management, L.P.SC 13G/A, 4 filings May 27, 2022 to Feb 9, 202455
- HIGHBRIDGE CAPITAL MANAGEMENT LLCSC 13G/A, 4 filings Nov 18, 2021 to Jan 19, 202456
- Sea Otter Advisors LLCSC 13G/A, 2 filings Dec 28, 2023 to Jan 9, 202457
- Dryden Capital, LLCSC 13G, 1 filing May 16, 202358
- Beryl Capital Management LLCSC 13G/A, 3 filings Nov 16, 2021 to Feb 10, 202359
Executive pay
What the company paid its top executives, from the summary compensation table in its proxy statement. Total pay includes salary, bonus, stock and option awards and other pay, as the company valued them.
| Year | Executive | Age | Salary | Total pay |
|---|---|---|---|---|
| 2025 | John Schlaefer | 62 | $380.5K | $515.4K60 |
| 2025 | Alex Sum | 78 | $303.1K | $434.3K60 |
| 2025 | Edmond Cheng | 65 | $285.8K | $418.3K60 |
| 2024 | Chief Financial Officer | $224.7K | $520.7K60 | |
| 2024 | Chief Executive Officer | $380.5K | $393.2K60 | |
| 2024 | Sr. VP of Sales and Marketing | $303.1K | $312.1K60 |
Held by these funds
The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 54. Change is in shares since the quarter before.
13F reports cover disclosed long positions in U.S. stocks only.
SEC filer profile
How GCT Semiconductor Holding, Inc. is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.
- Name on EDGARGCT Semiconductor Holding, Inc.1
- CIK0001851961
- Employer ID (EIN)86-21716999
- Filer statusNon-accelerated filer an emerging growth company; a smaller reporting company; not a shell company9
- Incorporated inDelaware9
- Fiscal year endsDecember 311
- Industry code (SIC)3674 Semiconductors & Related Devices1
- SEC reviewing officeOffice of Manufacturing, Division of Corporation Finance1
- Business address2290 North 1St Street, Suite 201, San Jose, CA 951311
- Phone408-434-60401
- Shares outstanding91,969,726 as of Aug 6, 20267
- Public float$68.2M as of Jun 30, 20259
- AuditorBPM LLP, San Jose, California PCAOB ID 207; no auditor attestation of internal control over financial reporting9
- On EDGAR sinceMar 26, 20211
- Filings336 in all: 4 (100), 8-K (41), SC 13G (19), 3 (18), CORRESP (18), SC 13G/A (18), 10-Q (15), 424B3 (14)1
All 36 form types
UPLOAD (13), EFFECT (9), 4/A (6), DEFA14A (6), 10-K (5), 424B5 (5), S-1/A (5), SCHEDULE 13G/A (5), 425 (4), DEF 14A (4), S-4/A (4), PRE 14A (3), S-1 (3), S-3 (3), ARS (2), POS AM (2), S-3/A (2), SCHEDULE 13G (2), 25-NSE (1), 424B4 (1), 8-A12B (1), 8-A12B/A (1), 8-K/A (1), CERT (1), PRER14A (1), S-1MEF (1), S-4 (1), S-8 (1)
- Latest filingsAnnual report (10-K) Mar 25, 2026
Quarterly report (10-Q) Aug 10, 2026
Proxy statement (DEF 14A) Aug 3, 2026
Latest 8-K (8-K) Sep 18, 2026
Securities registered for trading
| Class | Symbol | Exchange |
|---|---|---|
| Common Stock, par value $0.0001 per share | GCTS | The New York Stock Exchange |
| Warrants, each whole warrant exercisable for one share of Common Stock for $11.50 per share | GCTSW | The New York Stock Exchange |
From the cover page of the 10-K filed Mar 25, 2026 (Section 12(b) of the Exchange Act).9
Risk factors and legal proceedings
The risks GCT Semiconductor Holding, Inc. names in Item 1A of its 10-K filed Mar 25, 2026: 53 risks under these headings, as written.9
- We may encounter difficulties or challenges in satisfying our obligations under our 5G development agreements and in scaling and sustaining commercialization of our 5G chipsets, which may adversely affect our ability to generate revenue.
- If the 5G market develops more slowly than expected, or if we fail to accurately predict market requirements or demand for our 5G solutions, our financial performance could be adversely affected.
- Our products target primarily certain segments in the 5G markets, including fixed wireless access, mobile broadband, and M2M applications, and if these markets do not develop or grow as anticipated, our financial performance will be adversely affected.
- We depend on the commercial deployment of 4th generation (“4G”) long term evolution (“LTE”) and 5G communications equipment, products and services to grow our business, and our business may be harmed if wireless carriers delay adoption of 5G standards, or deploy technologies that are not supported by our solutions.
- If we are unsuccessful in developing and selling new products or in penetrating new markets, our business and operating results would suffer.
- If customers do not design our semiconductor solutions into their product offerings or if our customers’ product offerings are not commercially successful, we would have difficulty selling our semiconductor solutions and our business would suffer.
- If we are unable to compete effectively, we may not increase or maintain our revenue or market share.
- If we are unable to effectively manage our business through periods of economic or market slow-down and any subsequent future growth, we may not be able to execute our business plan and our operating results could suffer.
- We rely on a small number of customers for a significant percentage of our revenue, and the loss of, or a reduction in, orders from these customers could result in a substantial decline in our revenue.
- Our customers may cancel their orders, change production quantities or delay production, and if we fail to forecast demand for our products accurately, we may incur product shortages, delays in product shipments or excess or insufficient product inventory, which could harm our business.
- We may fail to forecast customer demand for our products accurately, which may result in product shortages, delays in product shipments or excess or insufficient product inventory.
- We do not have long-term capacity agreements with our foundries and they may not allocate sufficient capacity to allow us to meet future demands for our products, and there is no guarantee that we will be able to secure capacity agreements in the future.
The other 41 risks
- Any increase in the manufacturing cost of our products could reduce our gross margins and operating profit.
- If our foundry vendors do not achieve satisfactory yields or quality, our reputation, customer relationships and financial performance could be harmed.
- We may experience difficulties in transitioning to new wafer fabrication process technologies or in achieving higher levels of design integration, which may result in reduced manufacturing yields, delays in product deliveries or increased costs.
- The complexity of our semiconductor solutions could result in unforeseen delays or expenses from undetected defects, errors or bugs in hardware or software, which could reduce the market acceptance for our new semiconductor solutions.
- Our business may be impacted by political events, war, terrorism, business interruptions and other geopolitical events and uncertainties beyond our control, including the Russian-Ukraine and conflicts in the Middle East.
- We have a history of losses, and we may not achieve or sustain profitability in the future, on a quarterly or annual basis.
- We have significant ongoing capital requirements that could have a material effect on our business and financial condition if we are unable to generate sufficient cash from operations or unable to raise capital on favorable terms.
- Our indebtedness could adversely affect our operations, including our ability to perform our obligations and fund working capital.
- Our failure to protect our intellectual property rights adequately could impair our ability to compete effectively or to defend ourselves from litigation.
- The enforcement and protection of our intellectual property may be expensive, could fail to prevent misappropriation or unauthorized use of our intellectual property, could result in the loss of our ability to enforce one or more patents, and could be adversely affected by changes in patent laws, by laws in certain foreign jurisdictions that may not effectively protect our intellectual property and by ineffective enforcement of laws in such jurisdictions.
- We may be subject to claims of infringement or misappropriation of third-party intellectual property rights, and any such infringement or other intellectual property claim made against us, whether or not it has merit, could be time-consuming, result in costly litigation, cause product delays, or require us to enter into royalty or licensing agreements.
- Any potential dispute involving our patents or other intellectual property could also include our industry partners and customers, which could trigger any indemnification obligations to them and result in substantial expense to us.
- We or our customers may be required to obtain licenses for certain so-called “standard essential patents” in order to comply with applicable standards, which could require us to pay additional royalties on certain of our products. If we or our customers are unable to obtain such licenses, our business, results of operations, financial condition and prospects would be harmed.
- Our failure to comply with obligations under open source licenses could require us to release our source code to the public or cease distribution of our products, which could harm our business, financial condition and results of operations.
- We may not be able to obtain additional patents and the legal protection afforded by any additional patents may not adequately cover the full scope of our business or permit us to gain or keep competitive advantage.
- We may not be able to obtain reimbursements from our customers for costs related to research and development activities.
- We rely upon third parties for supporting technology that is integrated into some of our products, and if we are unable to continue to use this technology and future technology, our ability to sell technologically advanced products would be limited.
- The market price of our Common Stock may be volatile, which could cause the value of your investment to decline.
- If securities analysts or industry analysts downgrade our Common Stock, publish negative research or reports, or do not publish reports about our business, our Common Stock price and trading volume could decline.
- Delaware law, our Charter and Bylaws contain provisions that could delay or discourage takeover attempts that stockholders may consider favorable.
- We do not intend to pay dividends on our Common Stock and, consequently, your ability to achieve a return on your investment will depend on appreciation in the price of our Common Stock.
- The semiconductor and communications industries are cyclical and have historically experienced significant fluctuations, including prolonged downturns and periods of supply imbalance, which could impact our operating results, financial condition and cash flows.
- The wireless and consumer electronics industry is characterized by short product cycles, significant fluctuations in supply and demand, and rapidly changing technologies, and we may not be able to meet these challenges successfully or consistently.
- Changes in current laws or the imposition of new laws regulating the wireless networks and radio frequency emission could impede the sale of our products or otherwise harm our business.
- The large amount of capital required to obtain radio frequency licenses, deploy and expand wireless networks and obtain new subscribers could slow the growth of the wireless communications industry and adversely affect our business.
- We may experience a decrease in market demand due to uncertain economic conditions in the United States and in international markets, which has been further exacerbated by the concerns of terrorism, war and social and political instability.
- Rapidly changing standards could make our semiconductor solutions obsolete, which would cause our operating results to suffer.
- Changes in trade policies, sanctions, export controls, or broader political and regulatory conditions, including disruptions in government operations, could reduce demand for our products, limit our ability to sell or transfer our products, or otherwise adversely affect our business.
- Legislative or regulatory initiatives related to climate change, as well as physical effects of climate-related events, could adversely affect our business.
- Our ability to compete is affected by certain regulatory developments that historically has benefited our products, including regulatory restrictions against distribution of similar products by Chinese companies, and changes in such regulatory requirement may adversely affect our sales.
- Our operating results may fluctuate from period to period and difficulty in predicting our quarterly operating results could cause the market price of our Common Stock to decline.
- Our business depends on international customers, suppliers and operations in Asia, which subjects us to additional risks, including increased complexity and costs of managing international operations and geopolitical instability.
- Our business operations could be significantly harmed by natural disasters or global epidemics.
- Failure to comply with governmental laws and regulations could harm our business.
- The enactment of legislation implementing changes in the U.S. taxation of international business activities or the adoption of other tax reform policies could materially impact our financial position and results of operations.
- We may experience significant fluctuations in our results of operations, including as a result of seasonality, making it difficult to project future results.
- We may be subject to securities or class action litigation, which is expensive and could divert management attention.
- Our Charter and Bylaws provide for an exclusive forum in the Court of Chancery of the State of Delaware for certain disputes between us and our stockholders, and that the federal district courts of the United States will be the exclusive forum for the resolution of any complaint asserting a cause of action under the Securities Act.
- The loss of any of our key personnel could seriously harm our business, and our failure to attract or retain specialized technical, management or sales and marketing talent could impair our ability to grow our business.
- Being a public company increases our operating costs and administrative burdens and exposes us to risks relating to compliance with public company reporting requirements, including the evaluation of our internal control over financial reporting under Section 404 of the Sarbanes-Oxley Act of 2002.
- Our business and operations could suffer in the event of security breaches.
Legal proceedings
We are not currently a party to any material legal proceedings. From time to time, we may, however, in the ordinary course of business become involved in legal proceedings. Regardless of outcome, litigation could have a material adverse effect on us due to defense and settlement costs, diversion of management resources, negative publicity, reputational harm and other factors, and there can be no assurances that favorable outcomes will be obtained.
The opening of Item 3, Legal Proceedings.9
Sources
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- 12SEC EDGARKyeongho Lee, Chair
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- 15SEC EDGARAlex Sum, VP of Marketing and Sales
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- 17SEC EDGARJeemee Kim, VP of Engineering & CTO
- 18SEC EDGARKukjin Chun, Board member
- 19SEC EDGARKyeongho Lee, Board member
- 20SEC EDGARNelson C. Chan, Board member
- 21SEC EDGARLawrence E. Leibowitz, Board member
- 22SEC EDGARPeter Ort, Board member
- 23SEC EDGARThomas C. King, Board member
- 24SEC EDGARShareholder vote
- 25SEC EDGARExecutive or director change
- 26SEC EDGARResults of operations
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- 29SEC EDGARResults of operations
- 30SEC EDGARResults of operations
- 31SEC EDGAREntered a material agreement
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- 34SEC EDGARResults of operations
- 35SEC EDGARShareholder vote
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