X0304 5 2011-12-31 0 0 0 0000842517 ISABELLA BANK CORP ISBA 0001480081 LaFramboise Joseph 7570 HILLTOP RIDGE ROAD STANWOOD MI 49346 1 0 0 0 common 2011-02-10 5 J 0 23.6111 18.00 A 900.2975 D common 2011-03-31 5 J 0 9.5564 17.90 A 909.8539 D common 2011-06-27 5 J 0 9.7118 17.80 A 919.5657 D common 2011-09-28 5 J 0 9.3184 18.75 A 928.8841 D common 2011-12-30 5 J 0 7.8899 22.67 A 936.7741 D Advisory Board Fees Dividend reinvestment earnings Joseph LaFramboise 2012-02-09