Nektar Therapeutics (NKTR) SEC Filings — 2026 1 SEC filing for Nektar Therapeutics (NKTR) in 2026. FilingsNektar Therapeutics Files 8-K with Exhibits — 8-K · Apr 20, 2026 ExploreAll NKTR Filings · NKTR 2025 · All 2026 Filings