11 institutions reported holding $2.1M of Radiopharm Theranostics Ltd (RADX) in SEC 13F filings for 2026-03-31. Largest institutional holders: SILVERARC CAPITAL MANAGEMENT, LLC ($805,846), Stonepine Capital Management, LLC ($738,977), HSBC HOLDINGS PLC ($264,513), Regal Partners Ltd ($172,593), PNC Financial Services Group, Inc. ($68,800). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SILVERARC CAPITAL MANAGEMENT, LLC | $805,846 | 187,406 | Hold |
| 2 | Stonepine Capital Management, LLC | $738,977 | 51.0M | Hold |
| 3 | HSBC HOLDINGS PLC | $264,513 | 61,372 | Trimmed |
| 4 | Regal Partners Ltd | $172,593 | 40,138 | Trimmed |
| 5 | PNC Financial Services Group, Inc. | $68,800 | 16,000 | Hold |
| 6 | UBS Group AG | $12,900 | 3,000 | Trimmed |
| 7 | RHUMBLINE ADVISERS | $519 | 121 | Added |
| 8 | Virtu Financial LLC | $0 | 0 | Exited |
| 9 | JANE STREET GROUP, LLC | $0 | 0 | Exited |
| 10 | Marex Group plc | $0 | 0 | Exited |
| 11 | Strategic Wealth Partners, Ltd. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31