Company · Ownership research

GCT Semiconductor Holding, Inc. GCTS

CIK 0001851961 · CUSIP 36170N107

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 36170N107 (GCTS), not CUSIP 36170N907 (GCTS), CUSIP 36170N957 (GCTS), and does not merge CUSIPs.

This page lists the top 20 of 24 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VANGUARD GROUP INC CIK 102909 · View history	$2.41M 2,006,178 shares	0.00%	+422.38K(+26.70%)Added	SEC filing ↗ Jan 29, 2026	▾
02	BlackRock, Inc. CIK 2012383 · View history	$696.64K 580,536 shares	0.00%	+12.92K(+2.30%)Added	SEC filing ↗ Feb 12, 2026	▾
03	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$498.11K 414,944 shares	0.00%	+17.87K(+4.50%)Added	SEC filing ↗ Feb 9, 2026	▾
04	GM Advisory Group, LLC CIK 1598304 · View history	$195.46K 162,887 shares	0.01%	-228.04K(-58.30%)Reduced	SEC filing ↗ Feb 13, 2026	▾
05	STATE STREET CORP CIK 93751 · View history	$173.63K 144,689 shares	0.00%	+11.80K(+8.90%)Added	SEC filing ↗ Feb 13, 2026	▾
06	Team Hewins, LLC CIK 1964760 · View history	$150.77K 125,640 shares	0.05%	0(0.00%)Unchanged	SEC filing ↗ Jan 28, 2026	▾
07	BRIDGEWAY CAPITAL MANAGEMENT, LLC CIK 1107261 · View history	$90.00K 75,000 shares	0.00%	+25.00K(+50.00%)Added	SEC filing ↗ Feb 17, 2026	▾
08	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$76.12K 63,432 shares	0.00%	-217(-0.30%)Reduced	SEC filing ↗ Feb 17, 2026	▾
09	GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history	$75.70K 63,080 shares	0.00%	-29.51K(-31.90%)Reduced	SEC filing ↗ Mar 25, 2026	▾
10	NORTHERN TRUST CORP CIK 73124 · View history	$75.24K 62,701 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Feb 17, 2026	▾
11	B. Riley Financial, Inc. CIK 1464790 · View history	$68.18K 56,818 shares	0.03%	0(0.00%)Unchanged	SEC filing ↗ Feb 10, 2026	▾
12	Engineers Gate Manager LP CIK 1620220 · View history	$28.22K 23,516 shares	0.00%	+327(+1.40%)Added	SEC filing ↗ Feb 17, 2026	▾
13	XTX Topco Ltd CIK 1828301 · View history	$25.51K 21,257 shares	0.00%	+21.26KNew	SEC filing ↗ Feb 17, 2026	▾
14	UBS Group AG CIK 1610520 · View history	$23.80K 19,837 shares	0.00%	+214(+1.10%)Added	SEC filing ↗ Jan 29, 2026	▾
15	MORGAN STANLEY CIK 895421 · Amended · View history	$23.15K 19,289 shares	0.00%	+1.99K(+11.50%)Added	SEC filing ↗ May 27, 2026	▾
16	Braeburn Wealth Management LLC CIK 2111759 · View history	$18.60K 15,500 shares	0.01%	—	SEC filing ↗ Feb 18, 2026	▾
17	JANE STREET GROUP, LLC CIK 1595888 · View history	$12.44K 10,367 shares	0.00%	+10.37KNew	SEC filing ↗ Feb 12, 2026	▾
18	CWM, LLC CIK 1535847 · View history	$1.00K 471 shares	0.00%	-396(-45.70%)Reduced	SEC filing ↗ Jan 26, 2026	▾
19	BNP PARIBAS FINANCIAL MARKETS CIK 1166588 · View history	$714.00 595 shares	0.00%	-132(-18.20%)Reduced	SEC filing ↗ Feb 10, 2026	▾
20	JPMORGAN CHASE & CO CIK 19617 · View history	$223.00 186 shares	0.00%	+95(+104.40%)Added	SEC filing ↗ Feb 11, 2026	▾

Showing 20 / 24 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

3,867,323

Not deduplicated across managers

Disclosed value

$4.64M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

GCT Semiconductor Holding, Inc. · Q4 2025

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.