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Yorkville Acquisition Corp.

MCGA
Exchange
Nasdaq
Industry
Finance Services
SEC CIK
0002064658

No open-market purchases or sales by Yorkville Acquisition Corp. insiders were filed in the last 90 days; 54 institutions reported holding it in 13F filings for Q2 2026, worth $153.6M in total; no superinvestor holds it.

Other share classesMCGAUMCGAW

13F holders, Q2 2026

Institutional positions in Yorkville Acquisition Corp. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
54
+3 vs. Q1 2026
Shares held
15.3M
+440.4K (+3.0%) vs. Q1 2026
Total value
$153.6M
+$5.72M (+3.9%) vs. Q1 2026
New holders
5
9 more added
Sold out
2
10 more reduced

1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MCGA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 54 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 0 institutionsQ1 2025: 0 institutionsQ2 2025: 0 institutionsQ3 2025: 55 institutionsQ4 2025: 48 institutionsQ1 2026: 52 institutionsQ2 2026: 54 institutions
Value heldQ2 2026: $153.6M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $0Q1 2025: $0Q2 2025: $0Q3 2025: $129.3MQ4 2025: $143.7MQ1 2026: $151.7MQ2 2026: $153.6M
Institutions holding MCGA and their total value by quarter
QuarterHoldersValue
Q2 202654$153.6M
Q1 202652$151.7M
Q4 202548$143.7M
Q3 202555$129.3M
Q2 20250$0
Q1 20250$0
Q4 20240$0
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Yorkville Acquisition Corp.; share changes are against Q1 2026.

Institutions holding MCGA in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Morgan Stanley62$6330.00%−15−19.5%Reduced
Simplex Trading, LLC92$9390.00%+92New
UBS Group AG221$2.26K0.00%−544−71.1%Reduced
Group One Trading, L.P.1,500$15.3K0.00%+1,500New
Rangeley Capital, LLC2,016$20.6K0.02%+2,016New
HGC Investment Management Inc.3,852$39.3K0.01%00.0%Unchanged
Wolverine Asset Management LLC6,460$66.0K0.00%−28,540−81.5%Reduced
Clear Street Group Inc.263,316$137.7K0.00%−32,518−11.0%Reduced
Robinson Capital Management, LLC15,200$155.2K0.07%+15,200New
K2 Principal Fund, L.P.18,075$184.5K0.02%00.0%Unchanged
Schonfeld Strategic Advisors LLC29,898$305.3K0.00%+14,998+100.7%Added
JPMorgan Chase & Co29,920$305.5K0.00%−17−0.1%Reduced
Virtu Financial LLC37,259$380.0K0.01%−2,744−6.9%Reduced
Citadel Advisors LLC39,373$402.0K0.00%+24,523+165.1%Added
Brevan Howard Capital Management LP60,000$612.9K0.01%00.0%Unchanged
Jain Global LLC75,000$765.8K0.01%00.0%Unchanged
CSS LLC82,253$839.8K0.04%00.0%Unchanged
Picton Mahoney Asset Management84,996$867.8K0.01%00.0%Unchanged
Whitebox Advisors LLC100,000$1.02M0.02%00.0%Unchanged
Context Capital Management, LLC100,000$1.02M0.02%00.0%Unchanged
Moore Capital Management, LP100,000$1.02M0.02%00.0%Unchanged
Mint Tower Capital Management B.V.100,000$1.02M0.12%00.0%Unchanged
Lineage Point Capital LP100,100$1.02M0.21%00.0%Unchanged
BNP Paribas Arbitrage, SA108,459$1.11M0.00%00.0%Unchanged
Susquehanna International Group, LLP112,455$1.15M0.00%+5,304+5.0%Added
Periscope Capital Inc.125,000$1.28M0.20%00.0%Unchanged
HRT Financial LP147,371$1.50M0.00%+5,008+3.5%Added
Hudson Bay Capital Management LP150,000$1.53M0.01%00.0%Unchanged
Jane Street Group, LLC177,408$1.81M0.00%+158,089+818.3%Added
Magnetar Financial LLC195,000$1.99M0.02%00.0%Unchanged
Toronto Dominion Bank197,121$2.01M0.00%−127,879−39.3%Reduced
Linden Advisors LP200,000$2.04M0.01%00.0%Unchanged
Tenor Capital Management Co., L.P.200,000$2.04M0.03%00.0%Unchanged
LMR Partners LLP207,208$2.12M0.02%00.0%Unchanged
Quarry LP252,105$2.57M0.41%00.0%Unchanged
Glazer Capital, LLC263,158$2.69M0.07%+12,836+5.1%Added
Polar Asset Management Partners Inc.264,692$2.70M0.05%+25,000+10.4%Added
SkyView Investment Advisors, LLC282,968$2.89M2.26%+282,968New
Radcliffe Capital Management, L.P.294,690$3.01M0.23%00.0%Unchanged
CNH Partners LLC295,494$3.02M0.04%+2,728+0.9%Added
Vivaldi Asset Management, LLC312,330$3.19M0.19%00.0%Unchanged
Millennium Management LLC316,500$3.23M0.00%00.0%Unchanged
Shaolin Capital Management LLC338,625$3.46M0.20%−61,375−15.3%Reduced
RLH Capital LLC442,231$4.52M2.16%00.0%Unchanged
Westchester Capital Management, LLC550,000$5.62M0.28%00.0%Unchanged
DLD Asset Management, LP613,910$6.27M0.51%−27,227−4.2%Reduced
Boothbay Fund Management, LLC637,610$6.51M0.12%00.0%Unchanged
Meteora Capital, LLC704,353$7.19M0.60%−89,585−11.3%Reduced
D. E. Shaw & Co., Inc.750,000$7.66M0.00%00.0%Unchanged
Davidson Kempner Capital Management LP850,000$8.68M0.14%00.0%Unchanged
Crossingbridge Advisors, LLC850,000$8.68M1.53%00.0%Unchanged
Murchinson Ltd.1,000,400$10.2M4.93%00.0%Unchanged
Mizuho Securities USA LLC1,565,425$15.9M0.26%+273,172+21.1%Added
Berkley W R Corp1,645,570$16.8M0.82%00.0%Unchanged
Geode Capital Management, LLC0$00.00%−12,458−100.0%Sold out
Mosley Wealth Management0$00.00%−137−100.0%Sold out
BCK Capital Management LP––––Not filed