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Disclosery

MCGA YORKVILLE ACQUISITION CORP.

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SHS CL A (common), issuer CIK 2064658

53 managers (53 13F filers) reported a position in MCGA shares at 2026-06-30, 15,016,708 shares in all. 4 filers opened a position and 2 filers sold out during the quarter.

Managers
53
13F filers
53
New
4
Added
9
Reduced
10
Sold out
2
Shares held by filers
15,016,708

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BERKLEY W R CORP1,645,570$16.8M0.82%013F-HRTimeline
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC1,565,425$15.9M0.26%+273,17213F-HR/ATimelineGroup
Murchinson Ltd.1,000,400$10.2M4.93%013F-HRTimeline
Davidson Kempner Capital Management LP850,000$8.68M0.14%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Crossingbridge Advisors, LLC850,000$8.68M1.53%013F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.750,000$7.66M<0.01%013F-HRTimelineGroup
Meteora Capital, LLC704,353$7.19M0.6%-89,58513F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC637,610$6.51M0.12%013F-HRTimeline
DLD Asset Management, LP613,910$6.27M0.51%-27,22713F-HRTimeline
Westchester Capital Management, LLCin group Westchester Capital Managemen…550,000$5.62M0.28%013F-HRTimelineGroup
RLH Capital LLC442,231$4.52M2.16%013F-HRTimeline
Shaolin Capital Management LLC338,625$3.46M0.2%-61,37513F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC316,500$3.23M<0.01%013F-HRTimelineGroup
First Trust Capital Management L.P.312,330$3.19M0.19%013F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC295,494$3.02M0.04%+2,72813F-HRTimelineGroup
Radcliffe Capital Management, L.P.294,690$3.01M0.23%013F-HRTimeline
Polar Asset Management Partners Inc.264,692$2.7M0.05%+25,00013F-HRTimeline
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC263,158$2.69M0.07%+12,83613F-HRTimelineGroup
Quarry LP252,105$2.57M0.41%013F-HRTimeline
LMR Partners LLPin group LMR Partners LLP207,208$2.12M0.02%013F-HRTimelineGroup
Linden Advisors LPin group Linden Advisors LP200,000$2.04M0.01%013F-HRTimelineGroup
TENOR CAPITAL MANAGEMENT Co., L.P.200,000$2.04M0.03%013F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK197,121$2.01M<0.01%-127,87913F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC195,000$1.99M0.02%013F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC177,408$1.81M<0.01%+158,08913F-HRTimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…150,000$1.53M0.01%013F-HRTimelineGroup
HRT FINANCIAL LP147,371$1.5M<0.01%+5,00813F-HRTimeline
Periscope Capital Inc.125,000$1.28M0.2%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…112,455$1.15M<0.01%+5,30413F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS108,459$1.11M<0.01%013F-HRTimelineGroup
Lineage Point Capital LP100,100$1.02M0.21%013F-HRTimeline
WHITEBOX ADVISORS LLC100,000$1.02M0.02%013F-HRTimeline
Context Capital Management, LLC100,000$1.02M0.02%013F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP100,000$1.02M0.02%013F-HRTimeline
Mint Tower Capital Management B.V.100,000$1.02M0.12%013F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT84,996$868K0.01%013F-HRTimeline
CSS LLC/IL82,253$840K0.04%013F-HRTimeline
Jain Global LLC75,000$766K0.01%013F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…60,000$613K0.01%013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC39,373$402K<0.01%+24,52313F-HRTimelineGroup
Virtu Financial LLCin group Virtu Financial LLC37,259$380K0.01%-2,74413F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO29,920$305K<0.01%-1713F-HRTimelineGroup
Schonfeld Strategic Advisors LLC29,898$305K<0.01%+14,99813F-HRTimeline
K2 PRINCIPAL FUND, L.P.18,075$185K0.02%013F-HRTimeline
ROBINSON CAPITAL MANAGEMENT, LLC15,200$155K0.07%new13F-HRTimeline
Clear Street Group Inc.in group Clear Street Group Inc.263,316$138K<0.01%-32,51813F-HRTimelineGroup
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC6,460$66K<0.01%-28,54013F-HRTimelineGroup
HGC Investment Management Inc.3,852$39.3K0.01%013F-HRTimeline
Rangeley Capital, LLC2,016$20.6K0.02%new13F-HRTimeline
GROUP ONE TRADING LLC1,500$15.3K<0.01%new13F-HRTimeline
UBS Group AGin group UBS Group AG221$2.26K<0.01%-54413F-HRTimelineGroup
SIMPLEX TRADING, LLC92$939<0.01%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY62$633<0.01%-1513F-HRTimelineGroup