GIX · GigCapital9 Corp. · Holdings

$10.00 At close · Oct 20

Market Cap

$365.47M

36.55M

Volume · Oct 20 5007 Avg daily vol (3M) 75.84K

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 GIX: 13F, 13D and 13G, insiders and funds →

Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.

Quarter:

Holders: 59

Total Value: $251,143,533

Total Shares: 46,661,165

Institutional Ownership Trend

2 quarters

Holder Concentration

Across 59 13F filers · Δ vs Mar 31, 2026

Top Holder

8.8%

−0.0 pts

Top 5

37.3%

−3.2 pts

Top 10

57.9%

−2.7 pts

HHI

453

Broadly held−30

Who Holds GIX

Last 2 quarters through Jun 30, 2026

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: 59 filers, like-for-like change +14.1%; actively managed books +14.9%; index-like books -71.4%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	76.9%	34	+18.0%	3	1
Exempt adviser	0.6%	1	0.0%	0	0
Adviser	2.1%	2	-1.1%	0	0
Bank	1.4%	3	-64.6%	2	0
Insurer	2.7%	1	-27.3%	0	0
Benefit plan	0.0%	1	0.0%	0	0
Non-US	3.7%	3	+754.5%	1	0
Holding company	0.0%	1	+266.7%	0	0
Unknown	12.4%	13	+9.2%	1	3

Style	Share	Filers	Change	New	Exited
Index-like	0.2%	4	-71.4%	1	0
Systematic-like	11.3%	7	+45.8%	0	0
Concentrated	6.4%	6	-4.7%	0	2
Diversified active	82.1%	42	+13.4%	6	2

Turnover	Share	Filers	Change	New	Exited
Low turnover	1.6%	7	+79.3%	3	0
Medium turnover	53.4%	23	+0.9%	3	2
High turnover	42.7%	26	+33.9%	1	2
Unknown	2.3%	3	+18.3%	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	64.9%	27	+10.7%	1	2
Medium horizon	8.7%	7	-2.4%	0	0
Long horizon	14.5%	15	+43.2%	5	1
Unknown	11.9%	10	+19.3%	1	1

13F book size	Share	Filers	Change	New	Exited
Under $1B	29.0%	21	+20.5%	2	1
$1B to $10B	53.6%	20	+3.9%	0	3
$10B to $100B	6.6%	9	-9.4%	2	0
$100B or more	10.8%	9	+130.1%	3	0

Client base	Share	Filers	Change	New	Exited
Pooled investment vehicles	72.7%	27	+15.7%	1	1
Registered funds and BDCs	4.3%	7	+81.2%	2	0
Unknown	23.1%	25	+2.7%	4	3

Private funds	Share	Filers	Change	New	Exited
Hedge funds	72.1%	27	+15.6%	1	1
Private equity funds	0.1%	1	0.0%	0	0
Other private funds	2.8%	2	+84.7%	1	0
Private funds, type not stated	0.6%	1	0.0%	0	0
No private funds	1.9%	4	+65.0%	1	0
Unknown	22.4%	24	+2.7%	4	3

Location	Share	Filers	Change	New	Exited
United States	89.2%	49	+19.9%	6	4
Outside the US	10.8%	10	-18.5%	1	0

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.

Conviction and Crowding

49 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

2.04% of filers hold it in their top 10

Mar 31, 2026: 2

Holders above 5%

median weight 0.103%

Mar 31, 2026: 0

Crowding

—

the issuer has more than one class of common stock, so its count is the total across classes

Private-fund advisers

—

of shares outstanding

Institutional ownership

—

the issuer has more than one class of common stock, so its count is the total across classes

Top 10 holders

60.1%

of 13F shares, Herfindahl 0.049

Active holders

+42.7%

like-for-like share change of active filers

5% stakes on record

0 13D, 6 13G (6 institutional, 0 passive, 0 exempt)

How long holders have held it value-weighted 1.7 quarters

Under 1 year 100.0% 1 to 3 years 0.000% 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 $0 (0 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

$9.89

estimated per share

Quarter-end price

$9.93

implied by 13F values

Estimated gain or loss

+0.4%

price against the estimated cost

Estimated at a loss

0.000%

of costed 13F value

Estimated cost covers 25.5% 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.

Shared Holders

Companies GIX's active holders also own, quarter ended Jun 30, 2026

#	Company	Shared holders	Similarity
1	XSLL Xsolla SPAC 1	5	0.791
2	MYX Maywood Acquisition Corp. 2	4	0.632
3	FMAC Future Money Acquisition Corp	5	0.589
4	INAC Indigo Acquisition Corp.	5	0.589
5	QADR QDRO Acquisition Corp.	4	0.535
6	ALOV Aldabra 4 Liquidity Opportunity Vehicle, Inc.	4	0.535
7	HVMC Highview Merger Corp.	4	0.500
8	SORN Soren Acquisition Corp.	4	0.500
9	GIW GigCapital8 Corp.	4	0.500
10	SOCA Solarius Capital Acquisition Corp.	4	0.471

Shareholder Targets

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

Found through its holder-overlap peers: XSLL, MYX, FMAC, INAC, QADR, ALOV, HVMC, SORN, GIW, SOCA, GTERA, CTAA, IACO, SDHI, AACP, PACH, APAC, BPAC, PONO, MCAH. 68 filers in all.

#	Filer	In peers	Of book	Largest peers
1	ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser, Diversified active	$70,189,600 4 held	0.100%	SORN, HVMC, ALOV
2	WHITEBOX ADVISORS LLC Registered adviser, Diversified active	$64,942,165 18 held	3.51%	GIW, IACO, PONO
3	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Non-US, Diversified active	$55,928,500 6 held	0.090%	IACO, ALOV, HVMC
4	Alberta Investment Management Corp Non-US, Diversified active	$55,052,500 8 held	0.480%	HVMC, ALOV, SORN
5	Calamos Advisors LLC Registered adviser, Diversified active	$52,950,881 15 held	0.260%	IACO, SDHI, XSLL
6	MMCAP International Inc. SPC Unknown, Diversified active	$51,808,000 4 held	4.96%	IACO, QADR, ALOV
7	Periscope Capital Inc. Exempt adviser, Diversified active	$36,965,711 11 held	6.56%	GTERA, SOCA, GIW
8	Crossingbridge Advisors, LLC Adviser, Diversified active	$25,957,877 7 held	5.10%	SOCA, SDHI, GTERA
9	BOOTHBAY FUND MANAGEMENT, LLC Registered adviser, Systematic-like	$23,505,959 13 held	0.460%	AACP, MYX, PONO
10	MOORE CAPITAL MANAGEMENT, LP Registered adviser, Systematic-like	$23,392,500 6 held	0.580%	SOCA, HVMC, SORN

Fund Ownership of GIX by Fund Type

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

Index funds and index ETFs hold 0.00% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.00%	0.00 pp	0	0
Index ETFs	0.00%	0.00 pp	0	0
Active ETFs	0.08%	+0.08 pp	31,031	2
Active funds	0.87%	+0.60 pp	317,874	6
Unclassified	0.00%	0.00 pp	0	0
All registered funds	0.95%	+0.68 pp	348,905	8

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.

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.

Holder count: +3

Institutional value: +1.5%

Shares held: +14.1%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Small Harraden Circle Investments, LLC	+2,034,590	4,803,390
Mega MILLENNIUM MANAGEMENT LLC	+1,175,000	2,350,000
Mid AQR Arbitrage LLC	+769,048	2,947,048
Mid SONA ASSET MANAGEMENT (US) LLC	+550,000	1,250,000
Mid RIVERNORTH CAPITAL MANAGEMENT, LLC	+499,531	999,531

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Large TORONTO DOMINION BANK	−1,287,944	607,588
Mid GLAZER CAPITAL, LLC	−681,717	3,674,283
Mid BERKLEY W R CORP	−482,431	1,282,431
Mid MIZUHO SECURITIES USA LLC	−286,375	45,980
Small Shaolin Capital Management LLC	−214,305	719,284

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mega BNP PARIBAS ARBITRAGE, SA	1,408,952	$6,995,446
Large COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS	550,000	$3,475,500
Small GABELLI & Co INVESTMENT ADVISERS, INC.	45,850	$455,290
Large GABELLI FUNDS LLC	42,626	$423,276
Mega UBS Group AG	33,687	$334,521

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mid StoneX Group Inc.	115,716	$1,137,488
Mid Virtu Financial LLC	116,949	$678,751
Small Warberg Asset Management LLC	21,796	$219,049
Large Parallax Volatility Advisers, L.P.	16,653	$163,698

Filter: New 7 Increased 23 Reduced 9 Sold out 4 Unchanged 20

Holder type: Registered adviser 34 Exempt adviser 1 Adviser 2 Bank 3 Insurer 1 Benefit plan 1 Non-US 3 Holding company 1 Unknown 13

Showing 98 of 98

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Yakira Capital Management, Inc. GIXXU

$22,172,040

8.83%

2,178,000

TENOR CAPITAL MANAGEMENT Co., L.P.

$21,627,540

8.61%

2,178,000

GLAZER CAPITAL, LLC

$21,426,308

8.53%

2,157,735

AQR Arbitrage LLC

$14,632,093

5.83%

1,473,524

ARISTEIA CAPITAL, L.L.C.

$13,902,000

5.54%

1,400,000

HIGHBRIDGE CAPITAL MANAGEMENT LLC

$13,467,582

5.36%

1,356,252

MILLENNIUM MANAGEMENT LLC

$11,667,750

4.65%

1,175,000

WOLVERINE ASSET MANAGEMENT LLC

$9,220,074

3.67%

928,507

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	928,507	$9,220,074	100.0%	Defined

BERKLEY W R CORP

$8,762,539

3.49%

882,431

Decagon Asset Management LLP

$8,459,764

3.37%

851,940

Karpus Management, Inc.

$8,063,477

3.21%

812,032

D. E. Shaw & Co., Inc.

$7,536,870

3.00%

759,000

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

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	759,000	$7,536,870	100.0%	Defined

BNP PARIBAS ARBITRAGE, SA

$6,995,446

2.79%

704,476

Mint Tower Capital Management B.V.

$5,639,346

2.25%

567,910

Radcliffe Capital Management, L.P.

$5,588,633

2.23%

562,803

Shaolin Capital Management LLC

$5,243,874

2.09%

528,084

RIVERNORTH CAPITAL MANAGEMENT, LLC

$4,960,342

1.98%

499,531

MANGROVE PARTNERS IM, LLC

$4,468,500

1.78%

450,000

Schonfeld Strategic Advisors LLC

$4,167,968

1.66%

419,735

TWO SIGMA INVESTMENTS, LP

$3,959,587

1.58%

398,750

Magnetar Financial LLC

$3,723,750

1.48%

375,000

Westchester Capital Management, LLC

$3,659,640

1.46%

368,544

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

Manager	Shares	Value (USD)	% of position	Discretion
WESTCHESTER CAPITAL PARTNERS, LLC	2,947	$29,263	0.8%	Sole
Virtus Investment Advisers, LLC	317,635	$3,154,115	86.2%	Other
Held directly	47,962	$476,262	13.0%	Sole

Polar Asset Management Partners Inc.

$3,475,500

1.38%

350,000

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS

$3,475,500

1.38%

350,000

SONA ASSET MANAGEMENT (US) LLC

$3,475,500

1.38%

350,000

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

Manager	Shares	Value (USD)	% of position	Discretion
SONA ASSET MANAGEMENT (UK) LLP	350,000	$3,475,500	100.0%	Other

Clear Street Group Inc.

$3,143,152

1.25%

316,531

LMR Partners LLP GIXXU

$3,054,000

1.22%

300,000

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

Manager	Shares	Value (USD)	% of position	Discretion
LMR PARTNERS (DIFC) Ltd	300,000	$3,054,000	100.0%	Sole

Westchester Capital Management, LLC GIXXU

$3,053,998

1.22%

300,000

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

Manager	Shares	Value (USD)	% of position	Discretion
WESTCHESTER CAPITAL PARTNERS, LLC	2,559	$26,050	0.9%	Sole
Virtus Investment Advisers, LLC	272,092	$2,769,896	90.7%	Other
Held directly	25,349	$258,052	8.4%	Sole

Lineage Point Capital LP GIXXU

$1,514,549

0.60%

148,777

DLD Asset Management, LP

$1,489,500

0.59%

150,000

Hudson Bay Capital Management LP

$1,489,500

0.59%

150,000

RLH Capital LLC

$1,479,262

0.59%

148,969

Kepos Capital LP

$1,241,250

0.49%

125,000

Linden Advisors LP

$1,241,250

0.49%

125,000

TORONTO DOMINION BANK

$1,210,705

0.48%

121,924

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

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	121,924	$1,210,705	100.0%	Defined

Centiva Capital, LP

$1,021,797

0.41%

102,900

HGC Investment Management Inc. GIXXU

$1,018,000

0.41%

100,000

PICTON MAHONEY ASSET MANAGEMENT

$993,000

0.40%

100,000

METEORA CAPITAL, LLC

$973,140

0.39%

98,000

Context Capital Management, LLC

$744,750

0.30%

75,000

Quarry LP

$734,512

0.29%

73,969

Bulldog Investors, LLP

$634,675

0.25%

63,915

First Trust Capital Management L.P.

$595,800

0.24%

60,000

Lynrock Lake LP GIXXU

$509,000

0.20%

50,000

HEIGHTS CAPITAL MANAGEMENT, INC

$496,500

0.20%

50,000

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

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	50,000	$496,500	100.0%	Other

MIZUHO SECURITIES USA LLC

$456,581

0.18%

45,980

GABELLI & Co INVESTMENT ADVISERS, INC.

$455,290

0.18%

45,850

Clear Street Group Inc. GIXXU

$430,807

0.17%

42,319

Yorkville Advisors Global, LP

$429,978

0.17%

43,301

GABELLI FUNDS LLC

$423,276

0.17%

42,626

GEODE CAPITAL MANAGEMENT, LLC

$402,274

0.16%

40,511

Verition Fund Management LLC GIXXU

$381,750

0.15%

37,500

ABC ARBITRAGE SA

$347,550

0.14%

35,000

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

Manager	Shares	Value (USD)	% of position	Discretion
ABC ARBITRAGE ASSET MANAGEMENT joint	35,000	$347,550	100.0%	Other

UBS Group AG

$334,114

0.13%

33,647

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Europe SE	33,647	$334,114	100.0%	Defined

Bulldog Investors, LLP GIXXU

$328,111

0.13%

32,231

SUSQUEHANNA INTERNATIONAL GROUP, LLP GIXXU

$305,400

0.12%

30,000

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	30,000	$305,400	100.0%	Other

Tuttle Capital Management, LLC

$198,600

0.08%

20,000

OMERS ADMINISTRATION Corp GIXXU

$129,459

0.05%

12,717

TrueMark Investments, LLC

$109,537

0.04%

11,031

MORGAN STANLEY

$436

0.00%

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	44	$436	100.0%	Defined

UBS Group AG GIXXU

$407

0.00%

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	40	$407	100.0%	Defined

Hudson Bay Capital Management LP GIXXR

—

150,000

Centiva Capital, LP GIXXR

—

102,900

Context Capital Management, LLC GIXXR

—

75,000

Kepos Capital LP GIXXR

—

120,400

Magnetar Financial LLC GIXXR

—

375,000

TENOR CAPITAL MANAGEMENT Co., L.P. GIXXR

—

2,178,000

TORONTO DOMINION BANK GIXXR

—

485,664

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

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	485,664	$0	—	Defined

ABC ARBITRAGE SA GIXXR

—

40,000

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

Manager	Shares	Value (USD)	% of position	Discretion
ABC ARBITRAGE ASSET MANAGEMENT joint	40,000	$0	—	Other

TrueMark Investments, LLC GIXXR

—

11,500

PICTON MAHONEY ASSET MANAGEMENT GIXXR

—

100,000

AQR Arbitrage LLC GIXXR

—

1,473,524

BNP PARIBAS ARBITRAGE, SA GIXXR

—

704,476

WOLVERINE ASSET MANAGEMENT LLC GIXXR

—

284,447

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	284,447	$0	—	Defined

BANK OF AMERICA CORP /DE/ GIXXR

—

28,899

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

Manager	Shares	Value (USD)	% of position	Discretion
BOFA SECURITIES, INC.	28,899	$0	—	Defined

RLH Capital LLC GIXXR

—

145,469

Decagon Asset Management LLP GIXXR

—

625,675

HEIGHTS CAPITAL MANAGEMENT, INC GIXXR

—

24,659

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

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	24,659	$0	—	Other

Linden Advisors LP GIXXR

—

125,000

GLAZER CAPITAL, LLC GIXXR

—

1,516,548

RIVERNORTH CAPITAL MANAGEMENT, LLC GIXXR

—

500,000

ARISTEIA CAPITAL, L.L.C. GIXXR

—

1,200,000

Harraden Circle Investments, LLC GIXXR

—

4,803,390

Radcliffe Capital Management, L.P. GIXXR

—

362,114

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS GIXXR

—

200,000

MILLENNIUM MANAGEMENT LLC GIXXR

—

1,175,000

SONA ASSET MANAGEMENT (US) LLC GIXXR

—

900,000

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

Manager	Shares	Value (USD)	% of position	Discretion
SONA ASSET MANAGEMENT (UK) LLP	900,000	$0	—	Other

Bulldog Investors, LLP GIXXR

—

64,115

Shaolin Capital Management LLC GIXXR

—

191,200

Quarry LP GIXXR

—

73,969

Clear Street Group Inc. GIXXR

—

267,329

HIGHBRIDGE CAPITAL MANAGEMENT LLC GIXXR

—

898,892

METEORA CAPITAL, LLC GIXXR

—

86,049

Polar Asset Management Partners Inc. GIXXR

—

364,000

BERKLEY W R CORP GIXXR

—

400,000

DLD Asset Management, LP GIXXR

—

150,000

Mint Tower Capital Management B.V. GIXXR

—

967,910

Schonfeld Strategic Advisors LLC GIXXR

—

280,000

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