Cargill ESOP and Cargill class A shares are both worthless. The business is not structured to grow stock price so holding shares of either results in only 1 thing = 2-3% return from the fixed dividend (80% reinvestment/20% dividend strategy). Family only wants earnings to grow to get 20% of more $. Having shares worth more is useless due to being non-transferable in the public arena. Cash out as soon and as often to get into S&P 500. ...and if Cargill sold? ESOP shares will be cashed out at current value or transferred to new company at current value = not real ownership. Class A shares = who would pay more than current value for a low margin company? Probably get sold at $50/share = loss. But that won't matter to those that own $150B of shares, take the $50B loss on taxes and walk away with $100B in cash.
Look at your numbers and make your own informed decision, I sell as fast and as often as possible