The dividend shares don't show up in the "normal places" that other trade-able shares are placed.
In trade freedom, I have to go looking for the dividends as they are not placed in the same category or page as live and trade-able stocks.
People should phone their brokers if they can't seem to find the page that non trade-able shares are placed on.
I don't know about any other brokers systems but in trade freedom, the dividends are not in plain site.
just my humble opinion, call your brokerage firm and inquire as to why the Dividends of Dec or April are not being seen in your account and you might find out why.
After all, FINRA seldom makes mistakes so EVERYBODY that was in the stock a full 3 business days before the dividend cutoff date(s) will receive dividends.
If you do not hold shares in ANTP a full 3 business days before the cutoff date, then you DEFIANTLY WILL NOT BE ENTITLED TO DIVIDENDS. Period.