BPTRX assets under management have declined significantly recently…

BPTRX mutual fund has about 60% of their assets invested in Elon Musk's companies (37.43% SpaceX, 23.09% Tesla). I had assumed their AUM will have increased as investors flock to it to get pre-IPO exposure to SpaceX but in fact the fund has actually contracted in AUM, and quite significantly too, from $10.39 billion in March 2026 to $4.40 billion now (figures from google and seekingalpha)

I was wondering if this is an overall move away from Musk or if it's something else, with the target date of the blockbuster SpaceX IPO less than a month away now (12th June).