Disclosed are protein arginine methyltransferase 5 (PRMT5) degradation / disruption compounds including a PRMT5 ligand, a degradation / disruption tag and a linker, and methods for use of such compounds in the treatment of PRMT5-mediated diseases. The PRMT5 degraders disclosed herein offer a novel mechanism for treating PRMT5-mediated diseases compared to small molecule inhibitors of PRMT5 activity.