General Mills slips on CEO succession plan

** Shares of packaged food maker General Mills GIS.N fall 1.7% to $33.30

** Co says COO Dana McNabb would succeed Jeff Harmening as CEO, effective January 1

** McNabb, a 27-yr veteran and the co's first woman CEO, will take over as GIS navigates intense competition from private-label brands and higher costs

** Four of 21 brokerages rate stock "buy" or higher, 14 "hold" and four "sell" or lower; median PT is $938- LSEG compiled data

** Including session's move, stock down 28.5% YTD