Who owns Yorkville Acquisition Corp.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of MCGA from SEC Form 13F filings across 54 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 54 institutions disclosed 15.0M shares of Yorkville Acquisition Corp. worth $150.7M — about 87.1% of shares outstanding; the largest disclosed holder is BERKLEY W R CORP. Source: SEC Form 13F filings, parsed by EvidInvest.
54
13F holders
$150.7M
value, 2026 filers
87.1%
of shares outstanding (15.0M sh)
5
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of MCGA's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BERKLEY W R CORP | 1.6M | $16.8M | 0.8% | 9.5% | 0.0% |
| 2 | MIZUHO SECURITIES USA LLC | 1.3M | $13.1M | 0.3% | 7.5% | 0.0% |
| 3 | Murchinson Ltd. | 1.0M | $10.2M | 1.4% | 5.8% | 0.0% |
| 4 | Davidson Kempner Capital Management LP | 850,000 | $8.7M | 0.1% | 4.9% | 0.0% |
| 5 | Crossingbridge Advisors, LLC | 850,000 | $8.7M | 1.5% | 4.9% | 0.0% |
| 6 | D. E. Shaw & Co., Inc. | 750,000 | $7.7M | 0.0% | 4.3% | 0.0% |
| 7 | Meteora Capital, LLC | 704,353 | $7.2M | 0.6% | 4.1% | -11.3% |
| 8 | BOOTHBAY FUND MANAGEMENT, LLC | 637,610 | $6.5M | 0.1% | 3.7% | 0.0% |
| 9 | DLD Asset Management, LP | 613,910 | $6.3M | 0.4% | 3.6% | -4.2% |
| 10 | Westchester Capital Management, LLC | 550,000 | $5.6M | 0.3% | 3.2% | 0.0% |
| 11 | RLH Capital LLC | 442,231 | $4.5M | 2.2% | 2.6% | 0.0% |
| 12 | Shaolin Capital Management LLC | 338,625 | $3.5M | 0.2% | 2% | -15.3% |
| 13 | MILLENNIUM MANAGEMENT LLC | 316,500 | $3.2M | 0.0% | 1.8% | 0.0% |
| 14 | First Trust Capital Management L.P. | 312,330 | $3.2M | 0.2% | 1.8% | 0.0% |
| 15 | AQR Arbitrage LLC | 295,494 | $3.0M | 0.0% | 1.7% | +0.9% |
| 16 | Radcliffe Capital Management, L.P. | 294,690 | $3.0M | 0.2% | 1.7% | 0.0% |
| 17 | SkyView Investment Advisors, LLCNEW | 282,968 | $2.9M | 2.3% | 1.6% | new |
| 18 | Polar Asset Management Partners Inc. | 264,692 | $2.7M | 0.0% | 1.5% | +10.4% |
| 19 | Clear Street Group Inc. | 263,316 | $137,709 | 0.0% | 1.5% | -11.0% |
| 20 | GLAZER CAPITAL, LLC | 263,158 | $2.7M | 0.1% | 1.5% | +5.1% |
| 21 | Quarry LP | 252,105 | $2.6M | 0.2% | 1.5% | 0.0% |
| 22 | LMR Partners LLP | 207,208 | $2.1M | 0.0% | 1.2% | 0.0% |
| 23 | Linden Advisors LP | 200,000 | $2.0M | 0.0% | 1.2% | 0.0% |
| 24 | TENOR CAPITAL MANAGEMENT Co., L.P. | 200,000 | $2.0M | 0.0% | 1.2% | 0.0% |
| 25 | TORONTO DOMINION BANK | 197,121 | $2.0M | 0.0% | 1.1% | -39.3% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.