MCGA · Yorkville Acquisition Corp.
$10.23
+0.00 (+0.00%)
At close · Jul 28
Going-concern doubt
— flagged May 15, 2026
Substantial doubt about the company's ability to continue as a going concern.
“These conditions raise substantial doubt about our ability to continue as a going concern for a period of time within one year from the date that the financial statements accompanying this Quarterly Report on Form 10-Q are issued.”View the 10-Q filed May 15, 2026
Market Cap
$241.24M
Shares
23.58M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
The Jun 30, 2026 filing window is
still open — showing the latest known positions. Funds that have not filed yet
carry their prior-quarter positions; a fund that filed without this stock counts
as sold out.
Holders: 51
Total Value: $157,843,261
Total Shares: 15,596,116
Institutional Ownership Trend
4 quarters
Holder Concentration
Across 52 13F filersTop Holder
10.7%
of institutional value
Top 5
36.8%
of institutional value
Top 10
58.8%
of institutional value
HHI
456
Broadly held
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mid BERKLEY W R CORP | $16,636,712 | 10.54% | 1,645,570 | Shares | Sole | 2026-05-15 | ||||
| Mid MIZUHO SECURITIES USA LLC Broker-Dealer | $15,982,989 | 10.13% | 1,565,425 | Shares | Defined | 2026-07-28 | ||||
| Small Murchinson Ltd. | $10,114,044 | 6.41% | 1,000,400 | Shares | Sole | 2026-05-15 | ||||
| Mid Davidson Kempner Capital Management LP | $8,593,500 | 5.44% | 850,000 | Shares | Sole | 2026-05-15 | ||||
| Small Crossingbridge Advisors, LLC | $8,593,500 | 5.44% | 850,000 | Shares | Sole | 2026-05-14 | ||||
| Mid METEORA CAPITAL, LLC | $8,026,713 | 5.09% | 793,938 | Shares | Defined | 2026-05-15 | ||||
| Mega D. E. Shaw & Co., Inc. | $7,582,500 | 4.80% | 750,000 | Shares | Defined | 2026-05-15 | ||||
| Small DLD Asset Management, LP | $6,481,895 | 4.11% | 641,137 | Shares | Sole | 2026-05-13 | ||||
| Mid BOOTHBAY FUND MANAGEMENT, LLC | $6,446,237 | 4.08% | 637,610 | Shares | Other | 2026-05-15 | ||||
| Mid Westchester Capital Management, LLC | $5,560,498 | 3.52% | 550,000 | Shares | Other | 2026-05-15 | ||||
| Small RLH Capital LLC | $4,470,955 | 2.83% | 442,231 | Shares | Defined | 2026-04-29 | ||||
| Mid Shaolin Capital Management LLC | $4,044,000 | 2.56% | 400,000 | Shares | Sole | 2026-05-15 | ||||
| Micro BCK CAPITAL MANAGEMENT LP | $3,831,690 | 2.43% | 379,000 | Shares | Sole | 2026-05-01 | ||||
| Large TORONTO DOMINION BANK Bank | $3,285,750 | 2.08% | 325,000 | Shares | Defined | 2026-05-15 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $3,199,815 | 2.03% | 316,500 | Shares | Sole | 2026-05-15 | ||||
| Mid First Trust Capital Management L.P. | $3,157,656 | 2.00% | 312,330 | Shares | Sole | 2026-05-14 | ||||
| Large Clear Street Group Inc. | $2,990,881 | 1.89% | 295,834 | Shares | Sole | 2026-05-15 | ||||
| Small Radcliffe Capital Management, L.P. | $2,979,315 | 1.89% | 294,690 | Shares | Sole | 2026-05-15 | ||||
| Mid AQR Arbitrage LLC | $2,959,864 | 1.88% | 292,766 | Shares | Defined | 2026-05-15 | ||||
| Small Quarry LP | $2,548,781 | 1.61% | 252,105 | Shares | Other | 2026-05-15 | ||||
| Mid GLAZER CAPITAL, LLC | $2,530,755 | 1.60% | 250,322 | Shares | Sole | 2026-05-14 | ||||
| Mid Polar Asset Management Partners Inc. | $2,423,286 | 1.54% | 239,692 | Shares | Sole | 2026-05-15 | ||||
| Large LMR Partners LLP | $2,094,872 | 1.33% | 207,208 | Shares | Sole | 2026-05-15 | ||||
| Mid Linden Advisors LP | $2,022,000 | 1.28% | 200,000 | Shares | Sole | 2026-05-15 | ||||
| Mid TENOR CAPITAL MANAGEMENT Co., L.P. | $2,022,000 | 1.28% | 200,000 | Shares | Sole | 2026-05-15 | ||||
| Mid Magnetar Financial LLC | $1,971,450 | 1.25% | 195,000 | Shares | Sole | 2026-05-13 | ||||
| Large Hudson Bay Capital Management LP | $1,516,500 | 0.96% | 150,000 | Shares | Sole | 2026-05-13 | ||||
| Large HRT FINANCIAL LP | $1,439,289 | 0.91% | 142,363 | Shares | Defined | 2026-05-14 | ||||
| Small Periscope Capital Inc. | $1,263,750 | 0.80% | 125,000 | Shares | Sole | 2026-05-14 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $1,096,520 | 0.69% | 108,459 | Shares | Defined | 2026-05-12 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,083,296 | 0.69% | 107,151 | Shares | Other | 2026-05-15 | ||||
| Small Context Capital Management, LLC | $1,021,000 | 0.65% | 100,000 | Shares | Sole | 2026-07-23 | ||||
| Small Lineage Point Capital LP | $1,012,011 | 0.64% | 100,100 | Shares | Sole | 2026-05-15 | ||||
| Mid WHITEBOX ADVISORS LLC | $1,011,000 | 0.64% | 100,000 | Shares | Sole | 2026-05-15 | ||||
| Small Mint Tower Capital Management B.V. | $1,011,000 | 0.64% | 100,000 | Shares | Sole | 2026-05-04 | ||||
| Mid MOORE CAPITAL MANAGEMENT, LP | $1,011,000 | 0.64% | 100,000 | Shares | Sole | 2026-05-15 | ||||
| Mid PICTON MAHONEY ASSET MANAGEMENT | $859,309 | 0.54% | 84,996 | Shares | Sole | 2026-05-13 | ||||
| Small CSS LLC/IL | $831,577 | 0.53% | 82,253 | Shares | Sole | 2026-05-15 | ||||
| Large Jain Global LLC | $758,250 | 0.48% | 75,000 | Shares | Sole | 2026-05-15 | ||||
| Mid Brevan Howard Capital Management LP | $606,600 | 0.38% | 60,000 | Shares | Defined | 2026-05-15 | ||||
| Mid Virtu Financial LLC | $404,430 | 0.26% | 40,003 | Shares | Defined | 2026-05-14 | ||||
| Mega JANE STREET GROUP, LLC | $382,158 | 0.24% | 37,800 | Call | Defined | 2026-05-12 | ||||
| Mid WOLVERINE ASSET MANAGEMENT LLC | $353,850 | 0.22% | 35,000 | Shares | Defined | 2026-05-04 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $324,531 | 0.21% | 32,100 | Call | Other | 2026-05-15 | ||||
| Mega JPMORGAN CHASE & CO | $302,663 | 0.19% | 29,937 | Shares | Defined | 2026-05-13 | ||||
| Mega JANE STREET GROUP, LLC | $195,315 | 0.12% | 19,319 | Shares | Defined | 2026-05-12 | ||||
| Small K2 PRINCIPAL FUND, L.P. | $182,738 | 0.12% | 18,075 | Shares | Sole | 2026-05-14 | ||||
| Large Schonfeld Strategic Advisors LLC | $150,639 | 0.10% | 14,900 | Shares | Sole | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $150,639 | 0.10% | 14,900 | Call | Defined | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $150,133 | 0.10% | 14,850 | Shares | Defined | 2026-05-15 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $125,950 | 0.08% | 12,458 | Shares | Defined | 2026-05-15 | ||||
| Small HGC Investment Management Inc. | $38,943 | 0.02% | 3,852 | Shares | Sole | 2026-05-15 | ||||
| Mega UBS Group AG | $7,734 | 0.00% | 765 | Shares | Defined | 2026-05-05 | ||||
| Mega MORGAN STANLEY | $778 | 0.00% | 77 | Shares | Defined | 2026-05-15 | ||||
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