Although an executor has broad discretion under most wills, an executor has no rigth to change what you are entitled to recieve under an estate.  However, there could be different reasons why this is occuring. It is possible that a liquidation resulted in a much smaller amount after the payment of administrative and necessary expenses of the estate. It is also possible that the decedent did not own 145,000 shares at the time of his or her death.   You need to determine the reason why your shares were reduced.You should either contact the executor and as for specific information  explaining the difference or petition the court for a formal accounting of the assets, expenses and distribution of the estate.