$MCGA

$10.39 +$0.00 (0.0%) Close

$MCGA Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 5.0M shares outstanding

Who owns MCGA?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 320.2%

Yorkville Acquisition Sponsor LLC 122.0% · Mizuho Securities USA LLC 57.2%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

0 vs last qtr

Net shares bought

+1.3M

by institutions in Q2 2026

New / sold out

4 / 4

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Mizuho Securities USA LLC +1.6M
SkyView Investment Advisors, LLC NEW +283.0K

Biggest sellers in Q2 2026

BCK Capital Management LP SOLD OUT −379.0K
Toronto Dominion Bank −127.9K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Yorkville Acquisition Corp. in the last 12 months.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Yorkville Acquisition Corp..

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years66% Under 1 year34%

Quarterly turnover

9.4%

of institutional shares changed hands

Top 10 managers, median time held

1 year

Super Investors

Investment managers reporting MCGA on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
MS Mizuho Securities USA LLC	2.9M	57.15%	+1.6M (+121.1%)	2025	0.3%
Shares held by quarter Peak holding2.9M (Q2'26) Change over 8 quarters+2.9M Share of the company57.150% Mizuho Securities USA LLC's full portfolio →
BW Berkley W R Corp	1.6M	32.91%	Unchanged	2025	0.8%
Shares held by quarter Peak holding1.6M (Q1'26) Change over 8 quarters+1.6M Share of the company32.910% Berkley W R Corp's full portfolio →

Mizuho Securities USA LLC

2.9M

% of company

57.15%

Change vs last qtr

+1.6M (+121.1%)

Held since

2025

Berkley W R Corp

1.6M

% of company

32.91%

Change vs last qtr

Unchanged

Held since

2025

27 more super investors behind a free account

See every manager holding Yorkville Acquisition Corp., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting MCGA on Form N-PORT; together they hold 6.6% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FT First Trust Merger Arbitrage Fund Investment Managers Series Trust II	$2.68M	262.1K	5.24%	0.16%	June 30, 2026
FT First Trust Multi-Strategy Fund Investment Managers Series Trust II	$494K	48.4K	0.97%	0.04%	June 30, 2026

First Trust Merger Arbitrage Fund

Investment Managers Series Trust II

Position value

$2.68M

% of company

5.24%

% of the fund

0.16%

As of

June 30, 2026

First Trust Multi-Strategy Fund

Investment Managers Series Trust II

Position value

$494K

% of company

0.97%

% of the fund

0.04%

As of

June 30, 2026

1 more funds behind a free account

See every fund holding Yorkville Acquisition Corp. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
YA Yorkville Acquisition Sponsor LLC 5%+ holder 13D · 25.9%	6.1M	122.04%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company122.040% Disclosed stake13D · 25.9% View the 13D/G filing →

Yorkville Acquisition Sponsor LLC

5%+ holder13D · 25.9%

6.1M

% of company

122.04%

Change vs last qtr

—

Held since

—

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