I think it’s more of the old Bitcoin investors back from 2010 that now own $100M or more in Bitcoin,than new institutional investors for the following reasons;
I don't agree with you those reasons but first check
this link out let's just take a back record about some earlier back institution investors with their approach of adopting bitcoin reserve.
I don't really know the angle of your classification because there're lot of institutional investors who're breaking the bitcoin purchase records currently. So it'll also be good getting informed about these newly instituional investors investing on bitcoin probably not socially influencing the media like those old institutions. They're as follows;
1) Semler scientific bought bitcoin 871 bitcoins in and average of $88.5 million ($101,616 and $87,854) per bitcoin within January and February, pushed forward buying more and currently holding a range of 3,467 bitcoins valued $327 million.
https://ir.semlerscientific.com/news-releases/news-release-details/semler-scientificr-announces-updated-btc-activity-monetizes?utm2) As at April Twenty One Capital in partnership with other firms already purchased 42,000 bitcoins rangd a value of $4
https://www.reuters.com/breakingviews/softbank-grasps-riskiest-end-crypto-mania-2025-04-24/?utmJust can't keep going in details as we also have institutions like the Trump Media and Technology Group, GameStop, Barclays Bank and the rest newly and currently blowing the bitcoin market.