Can you hold more than 150 Heirloom Shards?

Excuse me, I'm curious about something regarding the Heirloom Shards. Is there a limit to how many of these shards one can possess at any given time? Specifically, is it possible to hold more than 150 Heirloom Shards in one's inventory or account? If so, what are the implications or restrictions that come with exceeding this number? I'm keen to understand the mechanics behind it, as I'm considering my collection strategy for these valuable items.