Latest Period
Q2 2026
Security Snapshot
GCT Semiconductor Holding, Inc. - Common Stock, par value $0.0001 per share (GCTS) Institutional Ownership
CUSIP: 36170N107
13F Institutional Holders and Ownership History from Q1 2024 to Q2 2026
Institutions Reporting
54
Shares (Excl. Options)
12,570,409
Price
$2.97
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- Security type / class
- Equity / Common Stock, par value $0.0001 per share
- Symbol
- GCTS on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 12,570,409
- Total 13F value
- $37,329,785
- Portfolio coverage rank
- 0%
- Share change
- +8,554,941
- Value change
- +$25,601,067
- Number of holders
- 54
- Shares outstanding
- 75,138,957
- SEC-reported price per share
- $1.98
- Insider filing price
- $1.98
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- GCTS - GCT Semiconductor Holding, Inc. - Common Stock, par value $0.0001 per share is tracked under CUSIP 36170N107.
- 54 institutions reported positions in Q2 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 34 to 54 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $5,072,986 to $37,329,785.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 54 institutions filings for Q2 2026.
Security key
36170N107
Latest holder period
Q2 2026
13F holders
54
13D/G owners
3
CIK / CUSIP context first
Open Q2 2026 holders
GCTS full holder history
GCT Semiconductor Holding, Inc. SEC filings
GCT Semiconductor Holding, Inc. company facts
GCT Semiconductor Holding, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 36170N107:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
GCTS
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| TD SECURITIES (USA) LLC | 4.6% | -25% | $4,597,001 | -$314,831 | 3,456,392 | -6.4% | TD SECURITIES (USA) LLC | 31 Mar 2026 |
| SUNP Corp | 5.2% | -39% | $4,162,544 | -$1,587,905 | 2,910,870 | -28% | SUNP Corp | 30 Jun 2025 |
| Concord Sponsor Group III LLC | 1.3% | $891,946 | 632,586 | Concord Sponsor Group III LLC | 26 Mar 2025 |
As of 30 Jun 2026, 54 institutional investors reported holding 12,570,409 shares of GCT Semiconductor Holding, Inc. - Common Stock, par value $0.0001 per share (GCTS). This represents 17% of the company’s total 75,138,957 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
16%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 4% | 2,999,130 | +72% | 0% | $8,907,416 |
| RENAISSANCE TECHNOLOGIES LLC | 2.3% | 1,695,300 | 0.01% | $5,035,041 | |
| MARSHALL WACE, LLP | 1.7% | 1,296,433 | 0% | $3,850,404 | |
| BlackRock, Inc. | 1.7% | 1,281,164 | +114% | 0% | $3,805,057 |
| TUDOR INVESTMENT CORP ET AL | 1.1% | 818,485 | 0.01% | $2,430,900 | |
| GEODE CAPITAL MANAGEMENT, LLC | 1% | 767,459 | +62% | 0% | $2,279,833 |
| UBS Group AG | 0.86% | 646,238 | +1630% | 0% | $1,919,327 |
| VANGUARD FIDUCIARY TRUST CO | 0.55% | 416,917 | +69% | 0% | $1,238,243 |
| STATE STREET CORP | 0.47% | 353,089 | +47% | 0% | $1,048,674 |
| Informed Momentum Co LLC | 0.32% | 241,246 | 0.06% | $716,501 | |
| XTX Topco Ltd | 0.22% | 164,717 | +541% | 0.01% | $489,209 |
| NORTHERN TRUST CORP | 0.21% | 155,346 | +148% | 0% | $461,378 |
| Robertson Stephens Wealth Management, LLC | 0.2% | 150,000 | 0.01% | $445,500 | |
| SEI INVESTMENTS CO | 0.19% | 142,901 | 0% | $424,416 | |
| JANE STREET GROUP, LLC | 0.18% | 133,082 | 0% | $395,254 | |
| Team Hewins, LLC | 0.17% | 125,640 | 0% | 0.1% | $373,151 |
| GOLDMAN SACHS GROUP INC | 0.15% | 112,837 | +67% | 0% | $335,126 |
| ExodusPoint Capital Management, LP | 0.12% | 88,539 | 0% | $262,961 | |
| CITADEL ADVISORS LLC | 0.1% | 77,168 | 0% | $229,189 | |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.1% | 75,000 | 0% | 0% | $222,750 |
| Caitong International Asset Management Co., Ltd | 0.09% | 65,817 | +346305% | 0.03% | $195,476 |
| Focus Partners Wealth | 0.09% | 64,000 | 0% | $190,080 | |
| BANK OF AMERICA CORP /DE/ | 0.08% | 63,164 | +0.24% | 0% | $187,597 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.08% | 58,713 | 0% | $174,378 | |
| BRC Group Holdings, Inc. | 0.08% | 56,818 | 0% | 0.04% | $168,749 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
10
Latest
Q2 2026
Rows shown
1-10 of 10
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 12,570,409 | $37,329,785 | +$25,601,067 | $2.97 | 54 |
| 2026 Q1 | 4,450,206 | $5,072,986 | +$668,722 | $1.14 | 34 |
| 2025 Q4 | 3,867,323 | $4,641,395 | -$69,422 | $1.20 | 24 |
| 2025 Q3 | 3,841,844 | $5,838,867 | -$628,108 | $1.52 | 29 |
| 2025 Q2 | 4,136,357 | $6,162,496 | +$852,638 | $1.49 | 29 |
| 2025 Q1 | 3,525,230 | $5,781,575 | +$619,233 | $1.64 | 41 |
| 2024 Q4 | 3,086,548 | $7,097,605 | -$645,977 | $2.33 | 41 |
| 2024 Q3 | 3,190,767 | $10,522,844 | +$769,278 | $3.35 | 41 |
| 2024 Q2 | 2,653,548 | $13,825,590 | +$12,597,968 | $5.21 | 30 |
| 2024 Q1 | 368,816 | $8,161,284 | +$8,161,284 | $33.06 | 7 |