it is a transverse wave
A transverse wave is the one that sets the particles of medium into oscillations perpendicular to the direction of wave propagation. So yes, a transverse wave needs a materialistic medium to propagatee.
Examples of transverse waves include:
ripples on the surface of water.
vibrations in a guitar string.
a Mexican wave in a sports stadium.
electromagnetic waves – eg light waves, microwaves, radio waves.
transverse waves require a material medium and propogate by means of vibrations of the medium perpendicular to the direction of travel. ... Electromagnetic (EM) waves (such as light) are also transverse waves but they do not require a medium and thus can pass through a vacuum