Stocks Technology GCTS
NYSE · TechnologyGCT Semiconductor Holding, Inc. (GCTS)
GCT Semiconductor Holding, Inc. brought in $4.1M of revenue over the twelve months to June 30, 2026, down 32.8% from a year earlier. It posted a net loss of $53.1M. In fiscal 2025 capital spending exceeded operating cash flow by $33.1M. At June 30, 2026 it held $30.2M in cash against $55.1M of debt. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on August 10, 2026.
Key facts about GCT Semiconductor Holding, Inc.
- Net worth
- GCT Semiconductor Holding, Inc. has a market value (market cap) of $133.4M at the latest share price, and shareholders' equity of -$52M on its balance sheet at June 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
- Revenue and profit
- In fiscal 2025 revenue was $2.9M (-68.6% year on year), with a net loss of $43.4M. Over the 12 months to June 30, 2026: revenue $4.1M, net loss $53.1M.
- Cash flow
- In fiscal 2025 operations used $30.7M of cash.
- Latest report
- The latest periodic report (quarterly report, 10-Q) was filed with the SEC on August 10, 2026 and covers the period to June 30, 2026. Open on SEC EDGAR
- Next earnings report
- GCT Semiconductor Holding, Inc.'s next report is expected around November 11, 2026. That is an estimate from its filing rhythm, not a date the company has announced.
What GCT Semiconductor Holding, Inc. does
GCT Semiconductor Holding, Inc. is registered with the SEC under industry code SIC 3674 (Semiconductors & Related Devices). Its shares trade on NYSE under the ticker GCTS.
Revenue and profit by year
Key figures
| Fiscal year | Revenue | Net income | Diluted EPS | Free cash flow |
|---|---|---|---|---|
| 2025 | $2.9M | -$43.4M | -$0.82 | -$33.1M |
| 2024 | $9.1M | -$12.4M | -$0.30 | -$31.5M |
| 2023 | $16M | -$22.5M | -$0.94 | -$9.2M |
| 2022 | n/a | $24.3M | n/a | n/a |
Earnings: every quarter and the next report date
Full financial statements: income, balance sheet and cash flow
Where GCTS ranks in Technology
Latest SEC filings
What GCT Semiconductor Holding, Inc. has filed recently, newest first. Each links to the original document on SEC EDGAR.
- September 18, 2026
- September 15, 2026
- August 10, 2026
- August 10, 2026Quarterly report 10-Q · period to June 30, 2026Revenue fell 18% to $971K versus the same quarter last year; diluted EPS -$0.25 versus -$0.26.
- August 3, 2026
- August 3, 2026Additional proxy material DEFA14A
- August 3, 2026Proxy statement DEF 14A
- June 18, 2026Other event 8-K/A
- June 18, 2026
- May 15, 2026Passive stake changed SCHEDULE 13G/A
Insider trades
What the people running GCT Semiconductor Holding, Inc. did with its shares, from the Form 4 filings they must send the SEC within two business days.
No insider bought or sold shares on the open market in the last 90 days. The 10 reported changes were pay in shares, option exercises, shares withheld for tax or gifts.
| Date | Insider | What | Shares | Value |
|---|---|---|---|---|
| September 30, 2026 | Shin HyunsooDirector | Received as pay | 12,971 | - |
| September 30, 2026 | Chun KukjinDirector | Received as pay | 12,971 | - |
| September 30, 2026 | Chan NelsonDirector | Received as pay | 12,971 | - |
| September 30, 2026 | Tuder JeffreyDirector | Received as pay | 12,971 | - |
| September 30, 2026 | Barker RobertDirector | Received as pay | 12,971 | - |
| September 30, 2026 | Lee KyeonghoDirector | Received as pay | 12,971 | - |
| September 10, 2026 | Cheng EdmondChief Financial Officer | Received as pay | 145,000 | - |
| September 10, 2026 | Kim Jeong-MinChief Technology Officer | Received as pay | 100,000 | - |
Who owns GCTS
Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.
5% holders
| Holder | Of class | Filed |
|---|---|---|
| SUNP Corp13G, passive | 5.2% | August 22, 2025 |
Largest institutional holders
Positions that investment managers reported on Form 13F for the quarter ended June 30, 2026, largest first, with the change on the quarter ended March 31, 2026. Managers file 13F up to 45 days after a quarter ends. 58 managers reported a position.
| Holder | Shares | Change on quarter |
|---|---|---|
| Vanguard Capital Management LLC | 2,999,130 | +1,254,181 |
| Renaissance Technologies LLC | 1,695,300 | new |
| Marshall Wace, Llp | 1,296,433 | new |
| BlackRock, Inc. | 1,281,164 | +683,217 |
| Tudor Investment Corp ET AL | 818,485 | new |
| Geode Capital Management, LLC | 767,459 | +293,113 |
| UBS Group AG | 646,238 | +608,875 |
| Vanguard Fiduciary Trust Co | 416,917 | +170,673 |
| State Street Corp | 353,089 | +112,500 |
| Informed Momentum Co LLC | 241,246 | new |
| XTX Topco Ltd | 164,717 | +139,038 |
| Northern Trust Corp | 155,346 | +92,645 |
| Robertson Stephens Wealth Management, LLC | 150,000 | new |
| Sei Investments Co | 142,901 | new |
| Jane Street Group, LLC | 133,082 | new |
| Team Hewins, LLC | 125,640 | 0 |
| Goldman Sachs Group Inc | 112,837 | +45,324 |
| ExodusPoint Capital Management, LP | 88,539 | new |
| Citadel Advisors LLC | 77,168 | new |
| Bridgeway Capital Management, LLC | 75,000 | 0 |
Insiders
10 insiders reported holding 3,834,625 shares in total, about $5.6M at the last price.
| Holder | Shares |
|---|---|
| Lee KyeonghoDirector | 1,109,093 |
| Shin HyunsooDirector | 827,039 |
| Kim Jeong-MinChief Technology Officer | 402,701 |
| Schlaefer JohnPresident, CEO & Class III Dir, Director | 352,728 |
| Cheng EdmondChief Financial Officer | 296,000 |
| Sum AlexSr. VP of Sales and Marketing | 258,743 |
| Barker RobertDirector | 164,681 |
| Tuder JeffreyDirector | 164,161 |
| Chan NelsonDirector | 147,872 |
| Chun KukjinDirector | 111,607 |
Questions about GCTS
What does GCT Semiconductor Holding, Inc. do?
GCT Semiconductor Holding, Inc. is a company in the Technology sector, listed on NYSE as GCTS. Its shares trade on NYSE under the ticker GCTS.
What is GCT Semiconductor Holding, Inc.'s net worth?
GCT Semiconductor Holding, Inc. has a market value (market cap) of $133.4M at the latest share price, and shareholders' equity of -$52M on its balance sheet at June 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
Is GCT Semiconductor Holding, Inc. profitable?
No. Over the twelve months to June 30, 2026 it reported a net loss of $53.1M on revenue of $4.1M.
How much revenue does GCT Semiconductor Holding, Inc. make?
Over the twelve months to June 30, 2026 GCT Semiconductor Holding, Inc. reported revenue of $4.1M. That is 32.8% less than a year earlier.
When did GCT Semiconductor Holding, Inc. last report?
Its most recent periodic report is the quarterly report (10-Q) filed on August 10, 2026. It covers the period to June 30, 2026. Its newest filing of any kind is the insider trade from October 2, 2026.
When is GCT Semiconductor Holding, Inc.'s next earnings report?
GCT Semiconductor Holding, Inc.'s next report is expected around November 11, 2026. That is an estimate from its filing rhythm, not a date the company has announced.
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Where the numbers come from
Financial figures are the values GCT Semiconductor Holding, Inc. tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.
Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.