GCT SEMICONDUCTOR HLDG INC (GCTS)
Institutional ownership reported to the SEC as of Q2 2026, across 10 quarters.
Institutions report 13,000,819 shares against 91,969,726 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | $8.9M | 2,999,130 | 0.00% | 2q | +71.9%+$3.7M |
| RENAISSANCE TECHNOLOGIES LLC | $5.0M | 1,695,300 | 0.01% | new | NEW |
| MARSHALL WACE, LLP | $3.9M | 1,296,433 | 0.00% | new | NEW |
| BlackRock, Inc. | $3.8M | 1,281,164 | 0.00% | 8q | +114.3%+$2.0M |
| TUDOR INVESTMENT CORP ET AL | $2.4M | 818,485 | 0.00% | new | NEW |
| GEODE CAPITAL MANAGEMENT, LLC | $2.3M | 767,459 | 0.00% | 9q | +61.8%+$870.7K |
| STATE STREET CORP | $2.1M | 706,178 | 0.00% | 9q | +193.5%+$1.4M |
| UBS Group AG | $1.9M | 646,238 | 0.00% | 10q | +1629.6%+$1.8M |
| VANGUARD FIDUCIARY TRUST CO | $1.2M | 416,917 | 0.00% | 2q | +69.3%+$506.9K |
| Informed Momentum Co LLC | $716.5K | 241,246 | 0.06% | new | NEW |
| CITADEL ADVISORS LLC | $714.4K | 154,336 | 0.00% | new | NEW |
| XTX Topco Ltd | $489.2K | 164,717 | 0.01% | 3q | +541.4%+$412.9K |
| JANE STREET GROUP, LLC | $481.1K | 133,082 | 0.00% | new | NEW |
| NORTHERN TRUST CORP | $461.4K | 155,346 | 0.00% | 9q | +147.8%+$275.2K |
| Robertson Stephens Wealth Management, LLC | $445.5K | 150,000 | 0.01% | new | NEW |
| SEI INVESTMENTS CO | $424.4K | 142,901 | 0.00% | new | NEW |
| Team Hewins, LLC | $373.2K | 125,640 | 0.10% | 4q | HELD |
| GOLDMAN SACHS GROUP INC | $335.1K | 112,837 | 0.00% | 8q | +67.1%+$134.6K |
| ExodusPoint Capital Management, LP | $263.0K | 88,539 | 0.00% | new | NEW |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $222.8K | 75,000 | 0.00% | 4q | HELD |
| Caitong International Asset Management Co., Ltd | $195.5K | 65,817 | 0.03% | 2q | +346305.3%+$195.4K |
| Focus Partners Wealth | $190.1K | 64,000 | 0.00% | new | NEW |
| BANK OF AMERICA CORP /DE/ | $187.6K | 63,164 | 0.00% | 9q | HELD |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $174.4K | 58,713 | 0.00% | new | NEW |
| BRC Group Holdings, Inc. | $168.7K | 56,818 | 0.04% | 6q | HELD |
| INDEPENDENT FINANCIAL GROUP, LLC | $146.3K | 49,250 | 0.00% | new | NEW |
| ROYAL BANK OF CANADA | $146.0K | 49,213 | 0.00% | 2q | +2080.5%+$139.3K |
| MORGAN STANLEY | $129.3K | 43,532 | 0.00% | 10q | +125.7%+$72.0K |
| Jefferies Financial Group Inc. | $117.0K | 39,400 | 0.00% | new | NEW |
| Spark Investment Management LLC | $110.2K | 37,100 | 0.22% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $94.9K | 31,956 | 0.00% | new | NEW |
| CITIGROUP INC | $94.6K | 31,845 | 0.00% | new | NEW |
| TWO SIGMA INVESTMENTS, LP | $94.2K | 31,730 | 0.00% | new | NEW |
| Engineers Gate Manager LP | $89.8K | 30,248 | 0.00% | 5q | +28.6%+$20.0K |
| Vanguard Global Advisers, LLC | $82.0K | 27,623 | 0.00% | 2q | +166.1%+$51.2K |
| AXQ CAPITAL, LP | $76.9K | 25,898 | 0.01% | new | NEW |
| LPL Financial LLC | $62.2K | 20,935 | 0.00% | 2q | +109.3%+$32.5K |
| Braeburn Wealth Management LLC | $46.0K | 15,500 | 0.02% | 3q | HELD |
| Rockefeller Capital Management L.P. | $44.5K | 15,000 | 0.00% | new | NEW |
| Bank of New York Mellon Corp | $37.6K | 12,675 | 0.00% | new | NEW |
| StoneX Group Inc. | $37.4K | 12,835 | 0.00% | new | NEW |
| IMC-Chicago, LLC | $31.8K | 10,700 | 0.00% | new | NEW |
| BARCLAYS PLC | $21.1K | 7,090 | 0.00% | new | NEW |
| SIMPLEX TRADING, LLC | $20.9K | 7,048 | 0.00% | new | NEW |
| JPMORGAN CHASE & CO | $15.9K | 6,213 | 0.00% | 9q | +3240.3%+$15.4K |
| FMR LLC | $11.0K | 3,718 | 0.00% | new | NEW |
| OSAIC HOLDINGS, INC. | $10.1K | 3,400 | 0.00% | 2q | +70.0%+$4.2K |
| Russell Investments Group, Ltd. | $9.7K | 3,273 | 0.00% | 2q | HELD |
| JONES FINANCIAL COMPANIES LLLP | $5.2K | 2,200 | 0.00% | new | NEW |
| SBI Securities Co., Ltd. | $3.3K | 1,115 | 0.00% | 7q | +837.0%+$3.0K |
| Quarry LP | $3.1K | 1,036 | 0.00% | new | NEW |
| BNP PARIBAS FINANCIAL MARKETS | $1.7K | 578 | 0.00% | 9q | -2.9% |
| Arax Advisory Partners | $252 | 85 | 0.00% | 2q | -97.3%-$9.0K |
| KERR FINANCIAL PLANNING Corp | $30 | 10 | 0.00% | new | NEW |
| Avion Wealth | $0 | 153 | 0.00% | new | NEW |
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-09-15 | 2026-09-10 | Directors or officers departed or appointed | filing |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 55 | $38.9M | 13,000,819 | 29 | 18 | 2 | 0.9% |
| Q1 2026 | 34 | $5.1M | 4,450,206 | 11 | 7 | 3 | 0.0% |
| Q4 2025 | 24 | $4.6M | 3,867,323 | 2 | 10 | 5 | 0.0% |
| Q3 2025 | 29 | $5.8M | 3,841,935 | 8 | 3 | 12 | 0.0% |
| Q2 2025 | 31 | $6.2M | 4,193,239 | 11 | 10 | 9 | 0.0% |
| Q1 2025 | 42 | $5.9M | 3,582,048 | 5 | 13 | 13 | 0.0% |
| Q4 2024 | 41 | $7.1M | 3,086,548 | 4 | 15 | 6 | 0.0% |
| Q3 2024 | 41 | $10.6M | 3,218,025 | 9 | 13 | 7 | 0.0% |
| Q2 2024 | 33 | $14.6M | 2,858,444 | 24 | 4 | 3 | 0.0% |
| Q1 2024 | 8 | $9.0M | 495,834 | 8 | 0 | 0 | 0.0% |