GCTS · GCT Semiconductor Holding, Inc. · Holdings

$1.27 +0.00 (+0.00%) Q2 2026 earnings call transcript

Market Cap

$116.80M

91.97M

Volume · Oct 28 1.85M Avg daily vol (3M) 1.93M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of GCTS: 13F, 13D and 13G, insiders and funds →

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 59

Total Value: $38,210,276

Total Shares: 13,042,433

Institutional Ownership Trend

20 quarters

Holder Concentration

Across 58 13F filers

Top Holder

23.7%

of institutional value

Top 5

64.0%

of institutional value

Top 10

83.2%

of institutional value

HHI

1,091

Broadly held

Who Holds GCTS

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 58 filers, like-for-like change +213.0%; actively managed books +1042.7%; index-like books +77.8%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	58.4%	24	+191.3%	16	3
Exempt adviser	10.3%	1	new	1	0
Adviser	0.5%	1	-0.6%	0	1
Bank	10.5%	9	+226.2%	3	0
Broker-dealer	0.2%	1	+109.4%	0	0
Non-US	0.0%	2	+137.1%	0	0
Holding company	12.9%	7	+136.9%	3	0
Insurer	0.0%	0	—	0	0
Benefit plan	0.0%	0	—	0	0
Unknown	7.2%	13	+169.1%	8	3

Style	Share	Filers	Change	New	Exited
Index-like	48.9%	9	+77.8%	1	0
Systematic-like	9.4%	7	+1070.8%	5	1
Concentrated	3.1%	9	+95.7%	5	1
Diversified active	38.7%	33	+1745.7%	20	5
Not measured	0.0%	0	—	0	0
Unknown	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	26.5%	26	+92.6%	10	2
Medium turnover	21.6%	11	+2238.7%	7	0
High turnover	24.4%	16	+1912.3%	13	5
Unknown	27.5%	5	+71.5%	1	0
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	32.3%	11	+98.6%	5	0
Medium horizon	11.4%	9	+139.2%	6	1
Long horizon	39.0%	34	+292.3%	17	3
Unknown	17.3%	4	+1653.6%	3	3
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	2.6%	11	+65.8%	6	0
$1B to $10B	5.8%	10	+475.8%	6	3
$10B to $100B	21.8%	9	+2383.0%	7	4
$100B or more	69.8%	28	+145.1%	12	0
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	3.3%	11	+182.2%	7	1
Pooled investment vehicles	22.5%	9	+3669.1%	8	2
Registered funds and BDCs	30.6%	3	+67.4%	0	0
Governments and sovereign funds	1.9%	1	new	1	0
Pension and profit sharing plans	0.0%	0	—	0	0
Insurance companies	0.0%	0	—	0	0
Diversified	0.0%	0	—	0	0
Unknown	41.6%	34	+249.5%	15	4

Private funds	Share	Filers	Change	New	Exited
Hedge funds	32.4%	8	+6190.8%	8	2
Private equity funds	0.0%	0	—	0	0
Real estate funds	0.0%	2	-95.8%	0	1
Other private funds	1.2%	3	+105.3%	2	0
Private funds, type not stated	0.2%	1	new	1	0
No private funds	34.8%	11	+84.6%	6	0
Venture capital funds	0.0%	0	—	0	0
Mixed private funds	0.0%	0	—	0	0
Unknown	31.3%	33	+162.9%	14	4

Location	Share	Filers	Change	New	Exited
United States	82.3%	51	+161.8%	29	6
Outside the US	17.7%	7	+3302.8%	2	1

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Excluded 2 holders with no observed 2026-06-30 13F.

Conviction and Crowding

55 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

0.000% of filers hold it in their top 10

Mar 31, 2026: 0

Holders above 5%

median weight 0.000%

Mar 31, 2026: 0

Crowding

5.96%

of shares outstanding, 19th percentile

Mar 31, 2026: 0.324%

Private-fund advisers

5.12%

of shares outstanding

Institutional ownership

15.1%

17.7% of the estimated free float

Top 10 holders

83.7%

of 13F shares, Herfindahl 0.110

Active holders

+1044.0%

like-for-like share change of active filers

5% stakes on record

0 13D, 3 13G (1 institutional, 2 passive, 0 exempt)

How long holders have held it value-weighted 3.5 quarters

Under 1 year 70.4% 1 to 3 years 29.6% 3 years or more 0.000% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $78,801 (1 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$2.48

estimated per share

Mar 31, 2026: $3.24

Quarter-end price

$2.97

implied by 13F values

Estimated gain or loss

+20.0%

price against the estimated cost

Estimated at a loss

28.1%

of costed 13F value

Estimated cost covers 72.5% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shareholder Targets

13F filers that own its peers but not GCTS, quarter ended Jun 30, 2026

GCTS has no holder-overlap peers, so these filers hold the largest Technology stocks: NVDA, AAPL, MSFT, AVGO, MU, AMD, INTC, AMAT, LRCX, CSCO, TSM, KLAC, SNDK, TXN, PANW, MRVL, WDC, APH, ORCL, STX. 7,074 filers in all.

#	Filer	In peers	Of book	Largest peers
1	VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active	$489,725,900,193 20 held	22.1%	NVDA, AAPL, MSFT
2	Invesco Ltd. Adviser, Diversified active	$413,827,857,231 20 held	32.8%	NVDA, AAPL, MU
3	PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active	$287,532,333,393 20 held	28.9%	NVDA, AAPL, MSFT
4	NORGES BANK Non-US, Index-like	$280,908,085,880 20 held	28.0%	NVDA, AAPL, MSFT
5	Capital Research Global Investors Adviser, Diversified active	$203,724,108,091 19 held	28.5%	AVGO, NVDA, MSFT
6	Capital World Investors Adviser, Diversified active	$185,750,860,435 15 held	22.0%	AVGO, MU, NVDA
7	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser, Index-like	$174,850,027,256 20 held	31.9%	NVDA, AAPL, MSFT
8	CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser, Diversified active	$146,658,496,220 20 held	19.5%	NVDA, AAPL, MSFT
9	Legal & General Group Plc Unknown, Index-like	$140,613,395,463 20 held	29.3%	NVDA, AAPL, MSFT
10	Capital International Investors Adviser, Diversified active	$128,458,597,807 15 held	26.6%	AVGO, MSFT, NVDA

Fund Ownership of GCTS by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 3.89% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.46%	+0.04 pp	418,797	5
Index ETFs	3.43%	+1.46 pp	3,157,794	3
Active ETFs	0.00%	0.00 pp	0	0
Active funds	0.21%	+0.07 pp	192,115	3
Unclassified	0.00%	0.00 pp	0	0
All registered funds	4.10%	+1.57 pp	3,768,706	11

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 24 Exempt adviser 2 Adviser 1 Bank 9 Broker-dealer 1 Non-US 2 Holding company 7 Unknown 13

Showing 63 of 63

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

VANGUARD CAPITAL MANAGEMENT LLC

$8,907,416

23.31%

2,999,130

RENAISSANCE TECHNOLOGIES LLC

$5,035,041

13.18%

1,695,300

MARSHALL WACE, LLP

$3,850,405

10.08%

1,296,433

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	1,296,433	$3,850,405	100.0%	Other

BlackRock, Inc.

$3,805,056

9.96%

1,281,164

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BlackRock Investment Management, LLC	14,296	$42,459	1.1%	Sole
BlackRock Fund Advisors	212,062	$629,824	16.6%	Sole
BlackRock Institutional Trust Company, N.A.	1,054,581	$3,132,105	82.3%	Sole
Aperio Group, LLC	225	$668	0.0%	Sole

TUDOR INVESTMENT CORP ET AL

$2,430,900

6.36%

818,485

GEODE CAPITAL MANAGEMENT, LLC

$2,279,352

5.97%

767,459

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	167,608	$497,795	21.8%	Defined
Held directly	599,851	$1,781,557	78.2%	Defined

UBS Group AG

$1,919,326

5.02%

646,238

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	611,938	$1,817,455	94.7%	Defined
UBS Switzerland AG	34,300	$101,871	5.3%	Defined

VANGUARD FIDUCIARY TRUST CO

$1,238,243

3.24%

416,917

STATE STREET CORP

$1,048,674

2.74%

353,089

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS TRUST COMPANY	353,089	$1,048,674	100.0%	Defined

Robertson Stephens Wealth Management, LLC

$965,660

2.53%

455,500

Informed Momentum Co LLC

$716,500

1.88%

241,246

XTX Topco Ltd

$489,209

1.28%

164,717

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	164,717	$489,209	100.0%	Defined

NORTHERN TRUST CORP

$461,377

1.21%

155,346

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	155,346	$461,377	100.0%	Defined

SEI INVESTMENTS CO

$424,415

1.11%

142,901

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SEI TRUST CO	142,901	$424,415	100.0%	Sole

JANE STREET GROUP, LLC

$395,252

1.03%

133,082

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	133,079	$395,244	100.0%	Defined
Jane Street Global Trading, LLC	3	$8	0.0%	Defined

Team Hewins, LLC

$373,150

0.98%

125,640

GOLDMAN SACHS GROUP INC

$335,125

0.88%

112,837

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	112,837	$335,125	100.0%	Defined

Asset Management One Co., Ltd.

$264,173

0.69%

124,610

ExodusPoint Capital Management, LP

$262,960

0.69%

88,539

CITADEL ADVISORS LLC

$229,188

0.60%

77,168

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	17,616	$52,319	22.8%	Defined
Held directly	59,552	$176,869	77.2%	Defined

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$222,750

0.58%

75,000

Caitong International Asset Management Co., Ltd

$195,476

0.51%

65,817

Focus Partners Wealth

$190,080

0.50%

64,000

BANK OF AMERICA CORP /DE/

$187,597

0.49%

63,164

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	63,164	$187,597	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$174,377

0.46%

58,713

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	20,283	$60,240	34.5%	Other
G1 EXECUTION SERVICES, LLC	38,430	$114,137	65.5%	Other

BRC Group Holdings, Inc.

$168,749

0.44%

56,818

ROYAL BANK OF CANADA

$146,162

0.38%

49,213

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	9,213	$27,362	18.7%	Defined
RBC Dominion Securities Inc.	40,000	$118,800	81.3%	Defined

MORGAN STANLEY

$129,289

0.34%

43,532

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	24,243	$72,001	55.7%	Defined
MORGAN STANLEY SMITH BARNEY LLC	19,289	$57,288	44.3%	Defined

Jefferies Financial Group Inc.

$117,018

0.31%

39,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JEFFERIES LLC	39,400	$117,018	100.0%	Defined

Spark Investment Management LLC

$110,187

0.29%

37,100

MILLENNIUM MANAGEMENT LLC

$94,909

0.25%

31,956

CITIGROUP INC

$94,579

0.25%

31,845

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	31,845	$94,579	100.0%	Defined

TWO SIGMA INVESTMENTS, LP

$94,238

0.25%

31,730

CITADEL ADVISORS LLC

$89,991

0.24%

30,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	30,300	$89,991	100.0%	Defined

Engineers Gate Manager LP

$89,836

0.24%

30,248

Vanguard Global Advisers, LLC

$82,040

0.21%

27,623

AXQ CAPITAL, LP

$76,917

0.20%

25,898

LPL Financial LLC

$62,176

0.16%

20,935

Rockefeller Capital Management L.P.

$44,550

0.12%

15,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ROCKEFELLER FINANCIAL LLC	15,000	$44,550	100.0%	Defined

JANE STREET GROUP, LLC

$43,659

0.11%

14,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	14,700	$43,659	100.0%	Defined

JANE STREET GROUP, LLC

$42,174

0.11%

14,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	14,200	$42,174	100.0%	Defined

StoneX Group Inc.

$38,119

0.10%

12,835

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STONEX FINANCIAL INC.	12,835	$38,119	100.0%	Defined

CITADEL ADVISORS LLC

$38,016

0.10%

12,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	12,800	$38,016	100.0%	Defined

Y-Intercept (Hong Kong) Ltd

$38,013

0.10%

17,931

Bank of New York Mellon Corp

$37,643

0.10%

12,675

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
The Bank of New York Mellon	12,674	$37,641	100.0%	Defined
Held directly	1	$2	0.0%	Defined

Braeburn Wealth Management LLC

$32,860

0.09%

15,500

IMC-Chicago, LLC

$31,779

0.08%

10,700

BARCLAYS PLC

$21,057

0.06%

7,090

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS CAPITAL INC.	7,090	$21,057	100.0%	Defined

SIMPLEX TRADING, LLC

$20,932

0.05%

7,048

JPMORGAN CHASE & CO

$18,452

0.05%

6,213

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	6,027	$17,900	97.0%	Defined
J.P. Morgan Securities plc	186	$552	3.0%	Defined

FMR LLC

$11,042

0.03%

3,718

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STRATEGIC ADVISERS LLC	3,718	$11,042	100.0%	Defined

OSAIC HOLDINGS, INC.

$10,098

0.03%

3,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	1,400	$4,158	41.2%	Defined
Osaic Advisory Services, LLC	2,000	$5,940	58.8%	Defined

Russell Investments Group, Ltd.

$9,720

0.03%

3,273

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC	3,273	$9,720	100.0%	Defined

JONES FINANCIAL COMPANIES LLLP

$6,534

0.02%

2,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	2,200	$6,534	100.0%	Sole

Quarry LP

$3,076

0.01%

1,036

SBI Securities Co., Ltd.

$2,308

0.01%

1,089

BNP PARIBAS ARBITRAGE, SA

$1,716

0.00%

578

Avion Wealth

$454

0.00%

153

Arax Advisory Partners

$252

0.00%

KERR FINANCIAL PLANNING Corp

$29

0.00%

HARBOUR INVESTMENTS, INC. CNDB

—

100

Bare Financial Services, Inc CNDB

—

756

Fortitude Family Office, LLC CNDB

—

250

Key facts CIK 1851961 CUSIP 36170N107 13F (30d) 5 filings 5 filers Visit website Investor relations