YORKVILLE ACQUISITION CORP. (MCGA)
Institutional ownership reported to the SEC as of Q2 2026, across 4 quarters.
48
Reporting holders
$160.2M
Reported value
1.4%
Held as options
+0
Holder change
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| MIZUHO SECURITIES USA LLC | $29.0M | 2,857,678 | 0.28% | 4q | +121.1%+$15.9M |
| BERKLEY W R CORP | $16.8M | 1,645,570 | 0.80% | 4q | HELD |
| Murchinson Ltd. | $10.2M | 1,000,400 | 1.41% | 4q | HELD |
| Davidson Kempner Capital Management LP | $8.7M | 850,000 | 0.10% | 4q | HELD |
| Crossingbridge Advisors, LLC | $8.7M | 850,000 | 1.53% | 2q | HELD |
| D. E. Shaw & Co., Inc. | $7.7M | 750,000 | 0.00% | 4q | HELD |
| Meteora Capital, LLC | $7.2M | 704,353 | 0.60% | 4q | -11.3%-$914.7K |
| BOOTHBAY FUND MANAGEMENT, LLC | $6.5M | 637,610 | 0.09% | 4q | HELD |
| DLD Asset Management, LP | $6.3M | 613,910 | 0.41% | 4q | -4.2%-$278.0K |
| Westchester Capital Management, LLC | $5.6M | 550,000 | 0.27% | 2q | HELD |
| RLH Capital LLC | $4.5M | 442,231 | 2.16% | 2q | HELD |
| Shaolin Capital Management LLC | $3.5M | 338,625 | 0.16% | 4q | -15.3%-$626.6K |
| MILLENNIUM MANAGEMENT LLC | $3.2M | 316,500 | 0.00% | 4q | HELD |
| First Trust Capital Management L.P. | $3.2M | 312,330 | 0.19% | 4q | HELD |
| AQR Arbitrage LLC | $3.0M | 295,494 | 0.04% | 4q | +0.9%+$27.9K |
| Radcliffe Capital Management, L.P. | $3.0M | 294,690 | 0.23% | 4q | HELD |
| Polar Asset Management Partners Inc. | $2.7M | 264,692 | 0.04% | 4q | +10.4%+$255.2K |
| JANE STREET GROUP, LLC | $2.6M | 177,408 | 0.00% | 3q | +818.3%+$2.3M |
| Quarry LP | $2.6M | 252,105 | 0.21% | 2q | HELD |
| LMR Partners LLP | $2.1M | 207,208 | 0.01% | 4q | HELD |
| Linden Advisors LP | $2.0M | 200,000 | 0.01% | 4q | HELD |
| TENOR CAPITAL MANAGEMENT Co., L.P. | $2.0M | 200,000 | 0.03% | 4q | HELD |
| TORONTO DOMINION BANK | $2.0M | 197,121 | 0.00% | 2q | -39.3%-$1.3M |
| Magnetar Financial LLC | $2.0M | 195,000 | 0.02% | 4q | HELD |
| CITADEL ADVISORS LLC | $1.7M | 39,373 | 0.00% | 3q | +165.1%+$1.0M |
| Hudson Bay Capital Management LP | $1.5M | 150,000 | 0.00% | 4q | HELD |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.3M | 112,455 | 0.00% | 4q | +5.0%+$60.7K |
| Periscope Capital Inc. | $1.3M | 125,000 | 0.11% | 4q | HELD |
| BNP PARIBAS FINANCIAL MARKETS | $1.1M | 108,459 | 0.00% | 4q | HELD |
| Lineage Point Capital LP | $1.0M | 100,100 | 0.21% | 2q | HELD |
| WHITEBOX ADVISORS LLC | $1.0M | 100,000 | 0.01% | 4q | HELD |
| Context Capital Management, LLC | $1.0M | 100,000 | 0.02% | 4q | HELD |
| MOORE CAPITAL MANAGEMENT, LP | $1.0M | 100,000 | 0.02% | 4q | HELD |
| PICTON MAHONEY ASSET MANAGEMENT | $867.8K | 84,996 | 0.01% | 4q | HELD |
| CSS LLC/IL | $839.8K | 82,253 | 0.03% | 4q | HELD |
| Jain Global LLC | $765.8K | 75,000 | 0.00% | 3q | HELD |
| Brevan Howard Capital Management LP | $612.9K | 60,000 | 0.00% | 2q | HELD |
| JPMORGAN CHASE & CO | $305.5K | 29,920 | 0.00% | 4q | HELD |
| Schonfeld Strategic Advisors LLC | $305.3K | 29,898 | 0.00% | 3q | +100.7%+$153.1K |
| K2 PRINCIPAL FUND, L.P. | $184.5K | 18,075 | 0.01% | 4q | HELD |
| ROBINSON CAPITAL MANAGEMENT, LLC | $155.2K | 15,200 | 0.07% | new | NEW |
| Clear Street Group Inc. | $137.7K | 263,316 | 0.00% | 4q | -11.0%-$17.0K |
| WOLVERINE ASSET MANAGEMENT LLC | $66.0K | 6,460 | 0.00% | 4q | -81.5%-$291.4K |
| HGC Investment Management Inc. | $39.3K | 3,852 | 0.01% | 4q | HELD |
| Rangeley Capital, LLC | $20.6K | 2,016 | 0.02% | new | NEW |
| GROUP ONE TRADING LLC | $15.3K | 1,500 | 0.00% | new | NEW |
| GLAZER CAPITAL, LLC | $2.7K | 263,158 | 0.07% | 4q | +5.1% |
| UBS Group AG | $2.3K | 221 | 0.00% | 4q | -71.1%-$5.6K |
| HRT FINANCIAL LP | $1.5K | 147,371 | 0.00% | 4q | +3.5% |
| Mint Tower Capital Management B.V. | $1.0K | 100,000 | 0.12% | 4q | HELD |
| SIMPLEX TRADING, LLC | $939 | 92 | 0.00% | new | NEW |
| MORGAN STANLEY | $633 | 62 | 0.00% | 3q | -19.5% |
| Virtu Financial LLC | $380 | 37,259 | 0.01% | 4q | -6.9% |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-13 | 13G/A | Mizuho Financial Group, Inc. SPAC | 8.8% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 48 | $160.2M | 15,497,857 | 4 | 7 | 7 | 1.4% |
| Q1 2026 | 48 | $147.2M | 14,705,593 | 7 | 10 | 8 | 0.6% |
| Q4 2025 | 44 | $139.4M | 13,945,768 | 6 | 12 | 5 | 0.3% |
| Q3 2025 | 50 | $124.9M | 11,691,675 | 49 | 0 | 0 | 0.2% |