RADX: Radiopharm Theranostics Limited insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-10-14 | New 13G stake | Regal Partners Funds Management Pty Limited | 3.34% | SEC | |
| 2026-09-04 | New 13G stake | Lantheus Omega, LLC | 17.30% | -3.60 pts | SEC |
| 2026-09-04 | New 13D stake | Lantheus Omega, LLC | 20.90% | SEC |
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