Latest Period
Q1 2026
Security Snapshot
Yorkville Acquisition Corp. - Class A Ordinary Shares, $0.0001 par value (MCGA) Institutional Ownership
CUSIP: G98659116
13F Institutional Holders and Ownership History from Q3 2025 to Q1 2026
Institutions Reporting
51
Shares (Excl. Options)
14,942,447
Price
$10.11
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- Security type / class
- Equity / Class A Ordinary Shares, $0.0001 par value
- Symbol
- MCGA on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 14,942,447
- Total 13F value
- $151,055,115
- Portfolio coverage rank
- 0%
- Share change
- +544,984
- Value change
- +$5,412,794
- Number of holders
- 51
- Shares outstanding
- 17,886,630
- SEC-reported price per share
- $10.17
- Insider filing price
- $10.17
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- MCGA - Yorkville Acquisition Corp. - Class A Ordinary Shares, $0.0001 par value is tracked under CUSIP G98659116.
- 51 institutions reported positions in Q1 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 48 to 51 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $143,664,077 to $151,055,115.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 51 institutions filings for Q1 2026.
Security key
G98659116
Latest holder period
Q1 2026
13F holders
51
13D/G owners
3
CIK / CUSIP context first
Open Q1 2026 holders
MCGA full holder history
Yorkville Acquisition Corp. SEC filings
Yorkville Acquisition Corp. company facts
Yorkville Acquisition Corp. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G98659116:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
MCGA
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Yorkville Acquisition Sponsor LLC | 26% | 6,101,825 | Yorkville Acquisition Sponsor LLC | 26 Jun 2025 | ||||
| BERKLEY W R CORP | 9.2% | $16,702,536 | 1,645,570 | W.R. Berkley Corporation | 31 Mar 2026 | |||
| Decagon Asset Management LLP | 5.8% | $10,767,286 | 1,035,316 | Decagon Asset Management LLP | 30 Sep 2025 |
As of 31 Mar 2026, 51 institutional investors reported holding 14,942,447 shares of Yorkville Acquisition Corp. - Class A Ordinary Shares, $0.0001 par value (MCGA). This represents 84% of the company’s total 17,886,630 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
74%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BERKLEY W R CORP | 9.2% | 1,645,570 | +329% | 0.89% | $16,636,713 |
| MIZUHO SECURITIES USA LLC | 7.2% | 1,292,253 | +140% | 0.31% | $13,051,755 |
| Murchinson Ltd. | 5.6% | 1,000,400 | 0% | 4.1% | $10,114,044 |
| Crossingbridge Advisors, LLC | 4.8% | 850,000 | 1.6% | $8,593,500 | |
| Davidson Kempner Capital Management LP | 4.8% | 850,000 | 0% | 0.18% | $8,593,500 |
| METEORA CAPITAL, LLC | 4.4% | 793,938 | -1.2% | 0.59% | $8,026,713 |
| D. E. Shaw & Co., Inc. | 4.2% | 750,000 | +650% | 0.01% | $7,582,500 |
| DLD Asset Management, LP | 3.6% | 641,137 | +4.5% | 0.66% | $6,481,895 |
| BOOTHBAY FUND MANAGEMENT, LLC | 3.6% | 637,610 | 0% | 0.15% | $6,446,237 |
| Westchester Capital Management, LLC | 3.1% | 550,000 | 0.27% | $5,560,500 | |
| RLH Capital LLC | 2.5% | 442,231 | 0% | 2.3% | $4,470,955 |
| Shaolin Capital Management LLC | 2.2% | 400,000 | +60% | 0.34% | $4,044,000 |
| BCK CAPITAL MANAGEMENT LP | 2.1% | 379,000 | 0% | 17% | $3,831,690 |
| TORONTO DOMINION BANK | 1.8% | 325,000 | 0.01% | $3,285,750 | |
| MILLENNIUM MANAGEMENT LLC | 1.8% | 316,500 | +14% | 0% | $3,199,815 |
| First Trust Capital Management L.P. | 1.7% | 312,330 | +19% | 0.17% | $3,157,656 |
| Radcliffe Capital Management, L.P. | 1.6% | 294,690 | 0% | 0.23% | $2,979,316 |
| AQR Arbitrage LLC | 1.6% | 292,766 | -3.7% | 0.05% | $2,959,864 |
| Quarry LP | 1.4% | 252,105 | 0.52% | $2,548,782 | |
| GLAZER CAPITAL, LLC | 1.4% | 250,322 | +37% | 0.05% | $2,531,000 |
| Polar Asset Management Partners Inc. | 1.3% | 239,692 | 0% | 0.06% | $2,423,286 |
| LMR Partners LLP | 1.2% | 207,208 | 0% | 0.02% | $2,094,873 |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 1.1% | 200,000 | 0% | 0.03% | $2,022,000 |
| Linden Advisors LP | 1.1% | 200,000 | 0% | 0.01% | $2,022,000 |
| Magnetar Financial LLC | 1.1% | 195,000 | 0% | 0.02% | $1,971,450 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
3
Latest
Q1 2026
Rows shown
1-3 of 3