Pandaria world boss mounts - tradable?

[Nathure]

Hi!

Anyone know if these world boss mounts (from galleon, sha, oondasta and nalak) can be tradable with group members? (except from coin drop situations)

I know that gul'dan felblaze infernal mount (the green one) in personal loot can be tradable, but with pandaria world bosses i never get to test.

[Mymori]

They are not. Rukhmar however is tradable.