We present the stellar parameters (effective temperature, surface gravity and microturbulent velocity) and chemical abundances of Fe, Ca, Ti, Cr, Ni and Si in 31 evolved stars in M15, the most metal-poor Galactic globular cluster. Using spectra obtained using the Magellan Inamori Kyocera Echelle (MIKE) spectrograph at the Magellan Walter Baade Telescope. The abundances of the ensemble will help inform us about whether the cluster has multiple populations of stars and about the chemical yields of the previous generation of population III stars.