You have to be right in wondering when some major institution will sell some of their shares in a large lot to take the profit because we have had a big run up.... The major question is how much will we come down before leveling off and start to either climb or fly straight until the quarterly report comes out, which is bound to be good.
Institutions are not known to be traders. It would seem that any selling would've been at year end for "window dressing" or tax loss reasons. Any investing by any major inst. at this time should be buy and hold. IMO.