X0303 4 2009-07-27 0 0001061353 CREDIT SUISSE HIGH YIELD BOND FUND DHY 0001009234 ARZAC ENRIQUE R COLUMBIA UNIV GRADUATE SCHOOL OF BUS 116TH STREET NEW YORK NY 10027 0 1 0 1 Trustee&Chairman ofthe Board Nominating Committee Chairman common shares 2009-07-27 4 P 0 1489 2.4 A 18814.17 D The total shares held following this transaction inludes 831.391 shares acquired on 1/22/09, 1/29/09, 2/27/09, 3/26/09, 4/27/09, 5/28/09, 6/25/09 and 7/21/09 as part of the fund's dividend reinvestment plan. /s/ Karen Regan, as attorney-in-fact 2009-07-29