Offer your thoughts or opinion on the input financial query or topic using your financial background.

Who are the real big share holders of $AMDA?
There are not necessarily large shareholders, maybe every other Joe Schmoe owns 3 or 5 shares; and many shares might be inside investment funds. If you are looking for voting rights, typically, the banks/investment companies that host the accounts of the individual shareholders/fund owners have the collective voting rights, so the Fidelity's and Vanguard's of the world will be the main and deciding voters. That is very common.