8 institutions reported holding $4.9M of LAKE SUPERIOR ACQUISITION CO (LKSPU) in SEC 13F filings for 2026-06-30. Largest institutional holders: LMR Partners LLP ($3.6M), Clear Street Group Inc. ($1.2M), Lineage Point Capital LP ($102,800), UBS Group AG ($11,701), Magnetar Financial LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | LMR Partners LLP | $3.6M | 350,000 | Hold |
| 2 | Clear Street Group Inc. | $1.2M | 113,815 | Added |
| 3 | Lineage Point Capital LP | $102,800 | 10,000 | Hold |
| 4 | UBS Group AG | $11,701 | 1,146 | Added |
| 5 | Magnetar Financial LLC | $0 | 0 | Exited |
| 6 | Westchester Capital Management, LLC | $0 | 0 | Exited |
| 7 | PICTON MAHONEY ASSET MANAGEMENT | $0 | 0 | Exited |
| 8 | ROBINSON CAPITAL MANAGEMENT, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30