Mom buying Planet Express

Mom has tried to buy Planet Express on three separate ocassions, one of which is definitely canon and two of which are of disputed canon: The first one ocurred in 3001 after the IRS needed Professor Farnsworth to pay a million dollars in back-taxes, and he did not have the money (US#005). The second one ocurred in 3003 after That Guy became the CEO. The third one ocurred in 3003 after the company had been losing money (FVG).