B Minor Major 9th, 1st inversion (D in the bass)
Also written as Bm(maj9)/D.
Notes, from the bass up
D (bass)F#A#C#B
The same notes as B Minor Major 9th (D, F#, A#, C# and B), rearranged so D is the lowest note. Use it to move between chords with smaller jumps across the keyboard.