MCGA · Yorkville Acquisition Corp. · Holdings

$10.35 -0.01 (-0.09%) At close · Sep 11

Market Cap

$244.08M

23.58M

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 →

Quarter:

Holders: 60

Total Value: $158,105,844

Total Shares: 18,636,136

Institutional Ownership Trend

5 quarters

Holder Concentration

Across 60 13F filers · Δ vs Mar 31, 2026

Top Holder

10.6%

+0.2 pts

Top 5

38.2%

+2.5 pts

Top 10

59.2%

+2.2 pts

HHI

467

Broadly held+29

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -1

Institutional value: -1.0%

Shares held: -1.1%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mid MIZUHO SECURITIES USA LLC	+273,172	1,565,425
Mega JANE STREET GROUP, LLC	+197,389	254,508
Mega CITADEL ADVISORS LLC	+132,423	162,173
Mid Polar Asset Management Partners Inc.	+25,000	264,692
Large Schonfeld Strategic Advisors LLC	+14,998	45,042

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Small METEORA CAPITAL, LLC	−189,885	904,053
Large TORONTO DOMINION BANK	−112,033	239,199
Small Shaolin Capital Management LLC	−59,221	540,237
Mid WOLVERINE ASSET MANAGEMENT LLC	−28,540	17,792
Small DLD Asset Management, LP	−27,227	744,209

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Small Rangeley Capital, LLC	2,016	$20,583
Mid GROUP ONE TRADING LLC	1,500	$15,315
Mid SIMPLEX TRADING, LLC	92	$939

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Micro BCK CAPITAL MANAGEMENT LP	379,000	$3,831,690
Mega GEODE CAPITAL MANAGEMENT, LLC	12,458	$125,950
Micro Mosley Wealth Management	137	$1,385
Mid T3 Companies, LLC	13,009	$0

Filter: New 3 Increased 8 Reduced 13 Sold out 4 Unchanged 36

Showing 94 of 94

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

BERKLEY W R CORP

$16,801,269

10.63%

1,645,570

MIZUHO SECURITIES USA LLC

$15,982,989

10.11%

1,565,425

Murchinson Ltd.

$10,214,084

6.46%

1,000,400

Davidson Kempner Capital Management LP

$8,678,500

5.49%

850,000

Crossingbridge Advisors, LLC

$8,678,500

5.49%

850,000

D. E. Shaw & Co., Inc.

$7,657,500

4.84%

750,000

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.	750,000	$7,657,500	100.0%	Defined

METEORA CAPITAL, LLC

$7,191,444

4.55%

704,353

BOOTHBAY FUND MANAGEMENT, LLC

$6,509,998

4.12%

637,610

DLD Asset Management, LP

$6,268,021

3.96%

613,910

Westchester Capital Management, LLC

$5,615,498

3.55%

550,000

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	4,685	$47,833	0.9%	Sole
Virtus Investment Advisers, LLC	498,818	$5,092,931	90.7%	Other
Held directly	46,497	$474,734	8.5%	Sole

RLH Capital LLC

$4,515,178

2.86%

442,231

Shaolin Capital Management LLC

$3,457,361

2.19%

338,625

MILLENNIUM MANAGEMENT LLC

$3,231,465

2.04%

316,500

First Trust Capital Management L.P.

$3,188,889

2.02%

312,330

AQR Arbitrage LLC

$3,016,993

1.91%

295,494

Radcliffe Capital Management, L.P.

$3,008,784

1.90%

294,690

Clear Street Group Inc. MCGAU

$2,781,184

1.76%

269,756

Polar Asset Management Partners Inc.

$2,702,505

1.71%

264,692

GLAZER CAPITAL, LLC

$2,686,843

1.70%

263,158

Quarry LP

$2,573,992

1.63%

252,105

LMR Partners LLP

$2,115,593

1.34%

207,208

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	207,208	$2,115,593	100.0%	Sole

Linden Advisors LP

$2,042,000

1.29%

200,000

TENOR CAPITAL MANAGEMENT Co., L.P.

$2,042,000

1.29%

200,000

TORONTO DOMINION BANK

$2,012,605

1.27%

197,121

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	197,121	$2,012,605	100.0%	Defined

Magnetar Financial LLC

$1,990,950

1.26%

195,000

JANE STREET GROUP, LLC

$1,811,335

1.15%

177,408

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	177,408	$1,811,335	100.0%	Defined

Hudson Bay Capital Management LP

$1,531,500

0.97%

150,000

HRT FINANCIAL LP

$1,504,657

0.95%

147,371

Massar Capital Management, LP MCGAU

$1,340,300

0.85%

130,000

Periscope Capital Inc.

$1,276,250

0.81%

125,000

CITADEL ADVISORS LLC

$1,253,788

0.79%

122,800

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	122,800	$1,253,788	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,148,164

0.73%

112,455

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	100,047	$1,021,479	89.0%	Other
G1 EXECUTION SERVICES, LLC	12,408	$126,685	11.0%	Other

BNP PARIBAS ARBITRAGE, SA

$1,107,366

0.70%

108,459

Lineage Point Capital LP

$1,022,021

0.65%

100,100

Context Capital Management, LLC

$1,021,000

0.65%

100,000

MOORE CAPITAL MANAGEMENT, LP

$1,021,000

0.65%

100,000

WHITEBOX ADVISORS LLC

$1,021,000

0.65%

100,000

Mint Tower Capital Management B.V.

$1,021,000

0.65%

100,000

PICTON MAHONEY ASSET MANAGEMENT

$867,809

0.55%

84,996

CSS LLC/IL

$839,803

0.53%

82,253

JANE STREET GROUP, LLC

$787,191

0.50%

77,100

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	77,100	$787,191	100.0%	Defined

Jain Global LLC

$765,750

0.48%

75,000

Brevan Howard Capital Management LP

$612,600

0.39%

60,000

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

Manager	Shares	Value (USD)	% of position	Discretion
Brevan Howard US Investment Management, LP	60,000	$612,600	100.0%	Defined

JPMORGAN CHASE & CO MCGAU

$412,400

0.26%

40,000

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

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	40,000	$412,400	100.0%	Defined

CITADEL ADVISORS LLC

$401,998

0.25%

39,373

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	39,373	$401,998	100.0%	Defined

Virtu Financial LLC

$380,414

0.24%

37,259

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

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	37,259	$380,414	100.0%	Defined

JPMORGAN CHASE & CO

$305,483

0.19%

29,920

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

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	29,920	$305,483	100.0%	Defined

Schonfeld Strategic Advisors LLC

$305,258

0.19%

29,898

GLAZER CAPITAL, LLC MCGAU

$257,750

0.16%

25,000

MORGAN STANLEY MCGAU

$206,200

0.13%

20,000

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

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	20,000	$206,200	100.0%	Defined

K2 PRINCIPAL FUND, L.P.

$184,545

0.12%

18,075

Schonfeld Strategic Advisors LLC MCGAU

$156,134

0.10%

15,144

ROBINSON CAPITAL MANAGEMENT, LLC

$155,192

0.10%

15,200

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$137,835

0.09%

13,500

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	13,500	$137,835	100.0%	Other

Clear Street Group Inc.

$137,709

0.09%

263,316

WOLVERINE ASSET MANAGEMENT LLC

$65,956

0.04%

6,460

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	6,460	$65,956	100.0%	Defined

HGC Investment Management Inc.

$39,328

0.02%

3,852

Rangeley Capital, LLC

$20,583

0.01%

2,016

GROUP ONE TRADING LLC

$15,315

0.01%

1,500

UBS Group AG MCGAU

$3,237

0.00%

314

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	314	$3,237	100.0%	Defined

UBS Group AG

$2,256

0.00%

221

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	221	$2,256	100.0%	Defined

SIMPLEX TRADING, LLC

$939

0.00%

MORGAN STANLEY

$633

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	62	$633	100.0%	Defined

Parallax Volatility Advisers, L.P. MCGAW

—

49,564

TENOR CAPITAL MANAGEMENT Co., L.P. MCGAW

—

66,666

AQR Arbitrage LLC MCGAW

—

102,303

Clear Street Group Inc. MCGAW

—

98,380

Magnetar Financial LLC MCGAW

—

66,664

Hudson Bay Capital Management LP MCGAW

—

14,657

LMR Partners LLP MCGAW

—

133,332

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	133,332	$0	—	Sole

Decagon Asset Management LLP MCGAW

—

175,268

HGC Investment Management Inc. MCGAW

—

8,333

Linden Advisors LP MCGAW

—

83,334

PICTON MAHONEY ASSET MANAGEMENT MCGAW

—

28,332

DLD Asset Management, LP MCGAW

—

130,299

WHITEBOX ADVISORS LLC MCGAW

—

33,333

ARISTEIA CAPITAL, L.L.C. MCGAW

—

126,296

METEORA CAPITAL, LLC MCGAW

—

199,700

Mint Tower Capital Management B.V. MCGAW

—

33,333

READYSTATE ASSET MANAGEMENT LP MCGAW

—

24,586

D. E. Shaw & Co., Inc. MCGAW

—

33,333

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.	33,333	$0	—	Defined

BNP PARIBAS ARBITRAGE, SA MCGAW

—

32,041

K2 PRINCIPAL FUND, L.P. MCGAW

—

38,333

MILLENNIUM MANAGEMENT LLC MCGAW

—

25,000

Anson Funds Management LP MCGAW

—

457,767

Shaolin Capital Management LLC MCGAW

—

201,612

Periscope Capital Inc. MCGAW

—

49,900

MOORE CAPITAL MANAGEMENT, LP MCGAW

—

33,333

Harraden Circle Investments, LLC MCGAW

—

510,699

Jain Global LLC MCGAW

—

25,000

Radcliffe Capital Management, L.P. MCGAW

—

31,330

WOLVERINE ASSET MANAGEMENT LLC MCGAW

—

11,332

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	11,332	$0	—	Defined

BERKLEY W R CORP MCGAW

—

39,676

TORONTO DOMINION BANK MCGAW

—

42,078

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	42,078	$0	—	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
T3 TRADING GROUP, LLC	13,009	$0	—	Sole

Key facts CIK 2064658 CUSIP G98659116 13F (30d) 35 filings 35 filers Visit website