This is a new Schilke SC4-MG. From Schilke:
 
The result of design collaboration with Marc Geujon, “Super-Soliste” of the Opera de Paris Orchestra, the SC4-MG was truly a first at Schilke Music. Like its Bb counterpart, almost every aspect of this trumpet was created over a year and a half. At the heart of the Soloiste Series is a new valve casing. This new design offers a resonant, clear sound through an instrument’s register. The SC4-MG’s leadpipe and bell are also new designs, created specifically for Mr. Geujon.