General Mills is trading 4.02% down at $32.46; Reuters reported shares were down about 3% in morning trading after the September 30 CEO announcement, without explicitly attributing the decline. - COO Dana McNabb will succeed Jeff Harmening, effective January 1, 2027. - The company faces high inflation, low consumer spending, private-label competition and margin pressure. - The market snapshot was mixed and does not establish a broad-market cause: the S&P 500 was up 0.31%, the Nasdaq up 0.88% and the Dow down 0.47%.