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ARCTBullishEarningsnews
High materiality8/10

Arcturus Regains KOSTAIVE Rights, Advances ARCT-032 toward Phase 3 in 2026

Aug 6, 2026, 4:08 PM EDT1 sourcesAI-analyzed
Why it may matterVerify against the original reporting

Key catalysts (Phase 3 decision for ARCT-032 in 2026, ARCT-810 data/reg plan, and KOSTAIVE rights monetization) improve optionality and reduce regulatory/partnership risk. Cash runway extension and Thermo Fisher collaboration add optionality for late-stage execution, potentially driving multiple expansion if clinical readouts align with investor expectations.

AI summary

What happened, with direct paths to the underlying reporting

Arcturus reports progress on ARCT-032 and ARCT-810, with ARCT-032 Phase 2 enrollment on track and a Phase 3 decision eyed for Q4 2026. ARCT-810 has completed Phase 2 dosing, and regulatory data plans will be shared in Q3 2026. The CSL Seqirus settlement restores Arcturus’ control of KOSTAIVE and related vaccines, accompanied by $12M in cash and $16M in R&D credits, strengthening liquidity as Thermo Fisher backs late-stage CF manufacturing and CRO support, extending the cash runway into 2028.

  • ARCT-032 Phase 2 enrollment remains on schedule; Phase 3 decision expected Q4 2026.
  • ARCT-810 Phase 2 enrollment/dosing complete; data/reg plan to be shared Q3 2026.
  • Arcturus regains global rights to KOSTAIVE and infectious disease portfolio; $12M cash and $16M R&D credits received.
  • Thermo Fisher collaboration supports late-stage CF program; potential Phase 3 execution via PPD CRO.
  • Investor call today 4:30 p.m. ET; cash runway extended beyond 2028.

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