ChatGP told me:

In comparison:

Percentage of shares owned by institutions is typically a higher value than the percentage of float, because institutional investors may hold shares that are not part of the public float (such as restricted shares or shares held for long-term strategic purposes).

Percentage of float is focused on the shares that can be bought or sold in the open market. This number is generally lower than the total percentage of institutional ownership, as it does not account for insider or restricted holdings.

Emphasis on "shares held for long-term strategic purposes)."

Wow, this is looking very interesting!!!!