Yorkville Acquisition Corp. Class AMCGA
13F holders, Q1 2026 (March 31)At the end of Q1 2026, 52 institutions reported holding Yorkville Acquisition Corp. Class A (MCGA) in their 13F filings, up 4 from Q4 2025. 8 opened new positions and 5 sold out. The largest holders were Berkley W R Corp. ($16.6M), Mizuho Securities USA LLC ($13.1M) and Murchinson Ltd. ($10.1M). 3 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Yorkville Acquisition Corp. Class A
- CUSIP
- G98659116
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 8 | $21.8M |
| Exits | 5 | $45.6M |
All 13F filers, Q4 2025 → Q1 2026: 5,200,853 shares bought and 4,817,238 shares sold, net +383,615 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 52 holders
| Berkley W R Corp. | 0.90% | Add +329.3% | 1,645,570 | $16.6M |
| Mizuho Securities USA LLC | 0.31% | Add +139.9% | 1,292,253 | $13.1M |
| Murchinson Ltd. | 4.07% | No change | 1,000,400 | $10.1M |
| Crossingbridge Advisors, LLC | 1.75% | New | 850,000 | $8.6M |
| Davidson Kempner Capital Management LP | 0.24% | No change | 850,000 | $8.6M |
| Meteora Capital, LLC | 0.60% | Reduce -1.2% | 793,938 | $8.0M |
| D. E. Shaw & Co. | 0.01% | Add +650.0% | 750,000 | $7.6M |
| DLD Asset Management, LP | 1.96% | Add +4.5% | 641,137 | $6.5M |
| Boothbay Fund Management, LLC | 0.15% | No change | 637,610 | $6.4M |
| Westchester Capital Management, LLC | 0.27% | New | 550,000 | $5.6M |
| RLH Capital LLC | 2.28% | — | 442,231 | $4.5M |
| Shaolin Capital Management LLC | 0.45% | Add +60.0% | 400,000 | $4.0M |
| BCK Capital Management LP | 16.69% | No change | 379,000 | $3.8M |
| Toronto Dominion Bank | 0.01% | New | 325,000 | $3.3M |
| Millennium Management | 0.00% | Add +14.1% | 316,500 | $3.2M |
| First Trust Capital Management L.P. | 0.17% | Add +19.2% | 312,330 | $3.2M |
| Radcliffe Capital Management, L.P. | 0.34% | No change | 294,690 | $3.0M |
| AQR Arbitrage LLC | 0.06% | Reduce -3.6% | 292,766 | $3.0M |
| Quarry LP | 0.53% | New | 252,105 | $2.5M |
| Glazer Capital, LLC | 0.06% | Add +36.6% | 250,322 | $2.5M |
| Polar Asset Management Partners Inc. | 0.08% | No change | 239,692 | $2.4M |
| LMR Partners LLP | 0.03% | No change | 207,208 | $2.1M |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 0.14% | No change | 200,000 | $2.0M |
| Linden Advisors LP | 0.12% | No change | 200,000 | $2.0M |
| Magnetar Financial LLC | 0.02% | No change | 195,000 | $2.0M |
| Hudson Bay Capital Management LP | 0.01% | No change | 150,000 | $1.5M |
| HRT Financial LP | 0.00% | Reduce -1.0% | 142,363 | $1.4M |
| Periscope Capital Inc. | 0.23% | No change | 125,000 | $1.3M |
| BNP Paribas Financial Markets | 0.00% | Add +12.8% | 108,459 | $1.1M |
| Susquehanna International Group, LLP | 0.00% | Add +8.8% | 107,151 | $1.1M |
| Lineage Point Capital LP | 0.25% | New | 100,100 | $1.0M |
| Context Capital Management, LLC | 0.28% | No change | 100,000 | $1.0M |
| Mint Tower Capital Management B.V. | 0.22% | No change | 100,000 | $1.0M |
| Whitebox Advisors LLC | 0.05% | No change | 100,000 | $1.0M |
| Moore Capital Management, LP | 0.04% | No change | 100,000 | $1.0M |
| Picton Mahoney Asset Management | 0.01% | No change | 84,996 | $859K |
| CSS LLC | 0.13% | No change | 82,253 | $832K |
| Jain Global LLC | 0.01% | No change | 75,000 | $758K |
| Clear Street Group Inc. | 0.00% | Reduce -37.0% | 295,834 | $671K |
| Brevan Howard Capital Management LP | 0.01% | New | 60,000 | $607K |
| Virtu Financial LLC | 0.02% | Add +214.4% | 40,003 | $404K |
| Wolverine Asset Management LLC | 0.02% | Reduce -22.2% | 35,000 | $354K |
| JPMorgan Chase & Co. | 0.00% | Add +0.1% | 29,937 | $303K |
| Jane Street Group, LLC | 0.00% | Reduce -74.0% | 19,319 | $195K |
| K2 Principal Fund, L.P. | 0.06% | Reduce -72.2% | 18,075 | $183K |
| Schonfeld Strategic Advisors LLC | 0.00% | Reduce -0.7% | 14,900 | $151K |
| Citadel Advisors | 0.00% | New | 14,850 | $150K |
| Geode Capital Management, LLC | 0.00% | No change | 12,458 | $126K |
| HGC Investment Management Inc. | 0.01% | No change | 3,852 | $39K |
| UBS Group AG | 0.00% | Reduce -80.2% | 765 | $8K |
| Mosley Wealth Management | 0.00% | New | 137 | $1K |
| Morgan Stanley | 0.00% | Add +63.8% | 77 | $778 |
"% of holder's portfolio" is MCGA's weight in each manager's 13F, not the share of Yorkville Acquisition Corp. Class A the manager owns.