The Internal Friction (IF), the elastic modulus and the magnetic susceptibility of a near stoichiometric Ni2MnGa polycrystalline sample have been measured as a function of temperature from parent phase down to well below martensitic transformation temperature (MS) by Resonant ultrasound spectroscopy (RUS) and superconducting quantum interference device (SQUID) measurements. Two IF peaks and two minima in the elastic modulus have been observed, corresponding to the weakly 1^ST order transition from the cubic L2₁ parent phase to the intermediate phase (at T₁ = 220K) and to the Martensitic Transformation (at T₂ = 120K). The real part of the magnetic susceptibility shows a decrease and the imaginary part a peak at T₁.

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