GCT Semiconductor HoldingGCTS

13F holders, Q3 2025 (September 30)
29holders −2
8new positions
10sold out
1famous investor
$1.52avg. 13F price*

At the end of Q3 2025, 29 institutions reported holding GCT Semiconductor Holding Inc. (GCTS) in their 13F filings, down 2 from Q2 2025. 8 opened new positions and 10 sold out. The largest holders were Vanguard Group Inc. ($2.4M), BlackRock, Inc. ($863K) and Geode Capital Management, LLC ($604K). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).

Company
GCT Semiconductor Holding Inc.
CUSIP
36170N107
Latest filing quarter
Q2 2026

History

Number of 13F holders

0204060 Q1 2024: 8Q1 2024Q2 2024: 33Q2 2024Q3 2024: 41Q3 2024Q4 2024: 41Q4 2024Q1 2025: 43Q1 2025Q2 2025: 31Q2 2025Q3 2025: 29Q3 2025Q4 2025: 24Q4 2025Q1 2026: 34Q1 2026Q2 2026: 55Q2 2026

Total Exit/New Position Q2 2025 → Q3 2025

InstitutionsTotal Value
New Positions8$632K
Exits10$514K

All 13F filers, Q2 2025 → Q3 2025: 532,733 shares bought and 884,128 shares sold, net −351,395 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 29 holders

Vanguard Group Inc. 0.00% Add +3.3% 1,583,800 $2.4M
BlackRock, Inc. 0.00% Reduce -0.6% 567,619 $863K
Geode Capital Management, LLC 0.00% Add +12.9% 397,077 $604K
GM Advisory Group, LLC 0.03% Reduce -0.6% 390,931 $594K
Renaissance Technologies 0.00% New 157,580 $240K
State Street Corp. 0.00% No change 132,889 $202K
Team Hewins, LLC 0.06% New 125,640 $191K
Goldman Sachs Group Inc. 0.00% Add +28.0% 92,586 $141K
Bank of America Corp. 0.00% Add +0.3% 63,649 $97K
Northern Trust Corp. 0.00% No change 62,701 $95K
BRC Group Holdings, Inc. 0.06% No change 56,818 $86K
Marshall Wace, LLP 0.00% New 51,670 $79K
Bridgeway Capital Management, LLC 0.00% New 50,000 $76K
Blair William & Co. 0.00% New 30,854 $47K
Engineers Gate Manager LP 0.00% Reduce -6.6% 23,189 $35K
UBS Group AG 0.00% Reduce -93.4% 19,623 $30K
Morgan Stanley 0.00% Reduce -7.6% 17,299 $26K
HRT Financial LP 0.00% Reduce -68.3% 12,268 $18K
Russell Investments Group, Ltd. 0.00% Reduce -10.9% 3,273 $5K
BNP Paribas Financial Markets 0.00% No change 727 $1K
Cwm, LLC 0.00% Reduce -69.0% 867 $1K
SBI Securities Co., Ltd. 0.00% No change 302 $459
FMR LLC 0.00% Reduce -89.0% 151 $230
Citigroup Inc. 0.00% New 114 $173
Optiver Holding B.V. 0.00% New 114 $173
JPMorgan Chase & Co. 0.00% Reduce -85.5% 91 $138
Arax Advisory Partners 0.00% New 9 $13
Barclays PLC 0.00% Reduce -96.9% 2 $3
Toronto Dominion Bank 0.00% Reduce -100.0% 1 $2

"% of holder's portfolio" is GCTS's weight in each manager's 13F, not the share of GCT Semiconductor Holding Inc. the manager owns.