Nothing in the entry explicitly calls out that it hoards treasure (as with many monsters), however it does have intelligence and therefore certainly could know the value of it, if for nothing else but to bait potential prey into its waiting jaws or bribing its way out of being potential lightning-seasoned steaks.
Whereas individual DMs may disagree on what monsters hoard and/or carry treasure, the DMG on page 133 simply states:
The placement of treasure is left to your discretion. The key is to
make sure the players feel rewarded for playing, and that their
characters are rewarded for overcoming dangerous challenges.
Of course one monster might spend time hoarding where another of the same type may not, as it may not see the benefit of doing so or be of a different type. There was a Dragon Magazine article years ago describing a dragon that hoarded nothing but "knowledge" and forewent monetary types entirely, except presumably to buy more knowledge.
Previous editions did have them have a hoard however. 5e has gotten away from such explicit distinctions though, so it is left to you to decide.