0001058811 immr:SeriesCMember 2026-09-14 2026-09-14 0001058811 us-gaap:CommonStockMember 2026-09-14 2026-09-14 0001058811 2026-09-14 2026-09-14 0001058811 false 8-K 2026-09-14 IMMERSION CORPORATION DE 001-38334 94-3180138 2999 N.E. 191st Street, Suite 610 Aventura FL 33180 408 467-1900 false false false false Common Stock, $0.001 par value per share IMMR NASDAQ Series C Junior Participating Preferred Stock Purchase Rights false