As you probably know, the existing Monsanto is a distinct legal entity from the original company with that name; from MON’s 10-K:
Monsanto was incorporated in Delaware on Feb. 9, 2000, as a subsidiary of Pharmacia Corporation. Monsanto includes the operations, assets and liabilities that were previously the agricultural business of Pharmacia. Pharmacia is now a subsidiary of Pfizer Inc.
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”