X0303 4/A 2009-12-30 2009-12-30 0 0001166258 PIONEER HIGH INCOME TRUST PHT 0000790438 COGAN JOHN F JR C/O PIONEER GROUP INC 60 STATE STREET BOSTON MA 02109 0 0 0 1 PRESIDENT AND CEO Pioneer High Income Trust 2009-12-30 2009-12-30 4 S 0 600 14.25 D 165776 D Pioneer High Income Trust 2009-12-30 2009-12-30 4 S 0 881 14.234 D 164895 D John F. Cogan, Jr. 2010-01-22