At the $1T+ scale, their CFOs are constantly road-tripping to find new institutional buyers. It stands to reason they’d perhaps know which way the wind was blowing based on those interactions.
Why would they need to go woo institutional buyers? At 1T they're already probably part of S&P 500 and other standard investment indexes. All the mutual funds, ETFs, pension plans are bought into them.
Honest question: what does a public company have to gain by convincing institutional buyers to buy its stock? I can't imagine that to have any lasting effect on the stock price.