EM counterparts to GW sources with Fermi GBM

The Fermi Gamma-ray Burst Monitor (GBM) is an all-sky monitoring instrument sensitive to photon energies from 8 keV to 40 MeV. Its capabilities allow it to observe around 40 short gamma-ray bursts (GRBs) each year through on-board triggers alone, making it ideal for providing simultaneous gamma-ray observations of gravitational-wave transients. This fact was proven through the independent on-board detection of GRB 170817A which was associated with the binary neutron star merger event GW170817, a major milestone in multimessenger astronomy. Fermi-GBM continues to look for similar multimessenger detections through on-board triggers as well as subthreshold searches for weak transients, performed both in high-time-resolution continuous data and in targeted follow-ups of gravitational-wave events. I will provide an overview of these searches and their recent results.