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GCTS GCT SEMICONDUCTOR HLDG INC

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COMMON STOCK (common), issuer CIK 1851961

32 managers (34 13F filers) reported a position in GCTS shares at 2026-03-31, 4,450,206 shares in all. 11 filers opened a position and 3 filers sold out during the quarter.

Managers
32
13F filers
34
New
11
Added
7
Reduced
3
Sold out
3
Shares held by filers
4,450,206

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCgroup of 3 filers holding2,001,574$2.28MnewTimeline
BlackRock, Inc.in group BlackRock, Inc.597,947$682K<0.01%+17,41113F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC474,346$541K<0.01%+59,40213F-HRTimelineGroup
GM Advisory Group, LLC434,456$495K0.02%+271,56913F-HRTimeline
STATE STREET CORPin group STATE STREET CORP240,589$274K<0.01%+95,90013F-HRTimelineGroup
Team Hewins, LLC125,640$143K0.04%013F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC75,000$85.5K<0.01%013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC67,513$77K<0.01%+4,43313F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/63,013$71.8K<0.01%-41913F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP62,701$71.5K<0.01%013F-HRTimelineGroup
BRC Group Holdings, Inc.56,818$64.8K0.01%013F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.51,604$58.8K<0.01%new13F-HRTimelineGroup
UBS Group AGin group UBS Group AG37,363$42.6K<0.01%+17,52613F-HRTimelineGroup
HRT FINANCIAL LP35,818$40K<0.01%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd25,679$29.3K<0.01%+4,42213F-HRTimelineGroup
Engineers Gate Manager LP23,516$26.8K<0.01%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY19,289$22K<0.01%013F-HRTimelineGroup
Braeburn Wealth Management LLC15,500$17.7K0.01%013F-HRTimeline
Schonfeld Strategic Advisors LLC13,200$15K<0.01%new13F-HRTimeline
LPL Financial LLC10,000$11.4K<0.01%new13F-HRTimeline
MAI Capital Management4,400$5.02K<0.01%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…3,273$3.73K<0.01%new13F-HRTimelineGroup
Arax Advisory Partners3,125$3.56K<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA2,257$3K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,286$2.61K<0.01%new13F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.2,000$2.28K<0.01%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS595$678<0.01%013F-HRTimelineGroup
CWM, LLCin group CWM, LLC265$302<0.01%-20613F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO186$197<0.01%013F-HR/ATimelineGroup
SBI Securities Co., Ltd.119$136<0.01%-1313F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.115$131<0.01%013F-HR/ATimelineGroup
Caitong International Asset Management …19$22<0.01%new13F-HRTimeline