Xoma turns its attention to Repare
Repare Therapeutics is the latest biotech to be scooped up by the royalty specialist Xoma Royalty, which will once again use its XenoTherapeutics subsidiary, a vehicle it deployed for the Essa Pharma acquisition over the summer. For Repare, the end has been a long time coming. The company’s fortunes began to unravel early last year when Roche exited an ATR inhibitor collaboration, triggering a drawn-out struggle to stay afloat. Two restructurings later, the last cutting 75% of staff, and with development of its most advanced programme, camonsertib, put on hold pending a partner, Repare has ultimately accepted a sale. Xoma will acquire the company, which had $112.6m in cash as of September 2025, for $78.2m. The deal additionally includes a contingent value right that could bring an additional 75-90% of the net proceeds from Repare's existing collaborations with Bristol Myers Squibb, Debiopharm and DCX Therapeutics; 100% of the proceeds from future licensing deals for the Polθ inhibitor RP-3467, the PLK4 inhibitor RP-1664, and camonsertib; and half the net proceeds for any deals covering Repare’s remaining projects. However, these remain long shots.
Xoma’s recent oncology transactions
| Target | Note | Financials | Total excl CVR | Latest disclosed cash balance | Date |
|---|---|---|---|---|---|
| Repare Therapeutics | Via XenoTherapeutics; Repare previously developing PLK4 and DNA Pol θ inhibitors | $1.82/share + CVR | $78.2m | $112.6m | 14 Nov 2025 |
| Mural Oncology | Via "XRA 5 Corp"; Mural previously developing nemvaleukin alfa (IL-2) | $2.035-2.240/share | $35.2-38.8m | $77.1m | 20 Aug 2025 |
| Lava Therapeutics | Lava previously developing γδ T-cell engagers | $1.16-1.24/share + CVR | $30.5-32.6m | $56.2m | 4 Aug 2025 |
| Essa Pharma | Via XenoTherapeutics; Essa previously developing masofaniten for prostate cancer | Estimated $1.91/share* + CVR | Estimated $85m | $113.9m | 14 Jul 2025 |
| Turnstone Biologics | Turnstone previously developing TILs | $0.34/share + CVR | ~$8m | $21.9m | 27 Jun 2025 |
Source: OncologyPipeline.
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