Your basis in the stocks would be the average of the high and the low FMV for each stock on the date of your Mother's death. You will need that for the non-covered shares...and perhaps for the covered shares as well.
Very interesting as to the amount of withholding also, greater than 25% of the gross proceeds.
You really need to talk to the broker and find out exactly what was sold, what wasn't sold, and if you didn't authorize a sale of the stock; why were they sold?
Were you the executor of the estate?
How were the stocks split? Did your sisters sell their shares; were all the stocks sold and then some reinvested?
If these truly are your shares of stock and were sold without your authorization, there is something not right going on.
**Disclaimer: Effort has been made to offer correct information; but due to the discussion forum limitations, the poster disclaims any legal responsibility for the accuracy of the poster's response**
