Arcus Biosciences, INC. (RCUS) SEC Filings — 2026 1 SEC filing for Arcus Biosciences, INC. (RCUS) in 2026. FilingsArcus Biosciences Files 8-K — 8-K · Apr 20, 2026 ExploreAll RCUS Filings · RCUS 2025 · All 2026 Filings