10 institutions reported holding $5.2M of YORKVILLE ACQUISITION CORP. (YORKU) in SEC 13F filings for 2026-06-30. Largest institutional holders: Clear Street Group Inc. ($2.8M), Massar Capital Management, LP ($1.3M), JPMORGAN CHASE & CO ($412,400), GLAZER CAPITAL, LLC ($258,000), MORGAN STANLEY ($206,200). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Clear Street Group Inc. | $2.8M | 269,756 | Added |
| 2 | Massar Capital Management, LP | $1.3M | 130,000 | Hold |
| 3 | JPMORGAN CHASE & CO | $412,400 | 40,000 | Hold |
| 4 | GLAZER CAPITAL, LLC | $258,000 | 25,000 | Hold |
| 5 | MORGAN STANLEY | $206,200 | 20,000 | Hold |
| 6 | Schonfeld Strategic Advisors LLC | $156,134 | 15,144 | Hold |
| 7 | GROUP ONE TRADING LLC | $28,588 | 2,800 | Trimmed |
| 8 | SIMPLEX TRADING, LLC | $21,441 | 2,100 | Trimmed |
| 9 | UBS Group AG | $3,237 | 314 | Added |
| 10 | ROBINSON CAPITAL MANAGEMENT, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30