Flubadub. If a warrant holder is alerted that there is an institution will buy their stock immediately when the warrant is exercised I don't think that has to be disclosed. I know there are services for the big boys to buy and sell large amours of stock to other institutions. Buying exercised warrant stock would be no different. This is a bit out of my league.
From the link below, it may help>>>>>
"Trades of very large amounts of stock are called "block trades." They are usually handled by a large investment house (typically NOT a Charles Schwab or TD Ameritrade)."
News 
Market Data 
Discover 
