“And nowhere is less than 8% an all-caps “MASSIVE” stake.”
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https://www.investopedia.com/terms/c/controllinginterest.asp
“With the majority of large public companies, for example, a shareholder with much less than 50% of the outstanding shares may still have a lot of influence at the company. Single shareholders with as little as 5% to 10% ownership can push for seats on the board or enact changes at shareholder meetings by publicly lobbying for them, giving them control.”
Less than 8% is not a MASSIVE share of anything. It might be consequential, but it is not a MASSIVE share.