Abu Dhabi Mubadala Adds to IBIT Position to $660M in Q1 as Harvard Dumps Ether ETF, Cuts Bitcoin by 43%

According to SEC Form 13F filings released Friday, Abu Dhabi sovereign wealth fund Mubadala increased its BlackRock iShares Bitcoin Trust ETF (IBIT) position from 12.7 million shares to 14.7 million shares as of March 31, bringing its stake to roughly $660 million.

Meanwhile, Harvard University continued trimming its IBIT holdings to 3.04 million shares worth approximately $117 million, marking a 43% reduction from its 5.35 million shares at year-end 2025. Harvard also fully exited its $86.8 million spot Ethereum ETF position initiated in the prior quarter.