19 institutions reported holding $47.6M of PLUTONIAN ACQUISITION CORP I (PLUN) in SEC 13F filings for 2026-06-30. Largest institutional holders: HIGHBRIDGE CAPITAL MANAGEMENT LLC ($9.9M), TORONTO DOMINION BANK ($6.4M), Crossingbridge Advisors, LLC ($5.0M), D. E. Shaw & Co., Inc. ($3.2M), MIZUHO SECURITIES USA LLC ($3.1M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | $9.9M | 992,077 | New |
| 2 | TORONTO DOMINION BANK | $6.4M | 646,282 | New |
| 3 | Crossingbridge Advisors, LLC | $5.0M | 500,000 | New |
| 4 | D. E. Shaw & Co., Inc. | $3.2M | 318,000 | New |
| 5 | MIZUHO SECURITIES USA LLC | $3.1M | 318,114 | New |
| 6 | Shaolin Capital Management LLC | $3.1M | 314,538 | New |
| 7 | WHITEBOX ADVISORS LLC | $2.5M | 250,000 | New |
| 8 | WOLVERINE ASSET MANAGEMENT LLC | $2.4M | 245,215 | New |
| 9 | BERKLEY W R CORP | $2.0M | 198,610 | New |
| 10 | StoneX Group Inc. | $1.9M | 186,951 | New |
| 11 | Periscope Capital Inc. | $1.8M | 177,528 | New |
| 12 | Clear Street Group Inc. | $1.4M | 135,974 | New |
| 13 | BOOTHBAY FUND MANAGEMENT, LLC | $1.0M | 100,910 | New |
| 14 | HEIGHTS CAPITAL MANAGEMENT, INC | $995,000 | 100,000 | New |
| 15 | Hudson Bay Capital Management LP | $995,000 | 100,000 | New |
| 16 | RLH Capital LLC | $995,000 | 100,000 | New |
| 17 | Quarry LP | $497,500 | 50,000 | New |
| 18 | L1 Global Manager Pty Ltd | $497,500 | 50,000 | New |
| 19 | SHP Wealth Management | $498 | 50 | New |
Source: SEC Form 13F filings · as of 2026-06-30