Rhythm Biosciences Limited (ASX: RHY)
Sector: Health Care
Market cap: A$22M (as of 2 Nov 2026)
Research, development and commercialisation of medical diagnostic technology
Data as of 2 Nov 2026.
Recent capital raises
Substantial holders — latest moves
| Date | Holder | Move | Holding | Source |
|---|---|---|---|---|
| 2 Dec 2025 | HSBC Custody Nominees (Australia) Limited | Entry | ?% → 10.06% | Filing ↗ |
| 29 Aug 2025 | OTTO BUTTULA INDIRECT ENTITIES | Entry | ?% → 12.83% | Filing ↗ |
| 27 Aug 2025 | Otto Buttula | Decrease | 12.838% → 11.298% | Filing ↗ |
| 8 Aug 2025 | FIL Limited and its entities listed in Annexure A | Increase | 7.11% → 8.53% | Filing ↗ |
| 9 July 2025 | Otto Buttula | Increase | 12.838% → 12.838% | Filing ↗ |
Director trades — on-market
| Date | Director | Trade | Source |
|---|---|---|---|
| 13 June 2024 | OTTO BUTTULA | Bought 600,000 RHY ordinary shares (Newfound Investments Pty Ltd) | Filing ↗ |
| 28 May 2024 | OTTO BUTTULA | Bought 276,906 ordinary shares (Newfound Investments Pty Ltd) | Filing ↗ |
| 22 May 2024 | OTTO BUTTULA | Bought 546,273 RHY ordinary shares (Newfound Investments Pty Ltd); NIL all other classes | Filing ↗ |
| 12 May 2023 | OTTO BUTTULA | Bought 683,895 | Filing ↗ |
| 8 Sept 2022 | OTTO BUTTULA | Sold 5,000,000 | Filing ↗ |
Cash and runway
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