<SEC-DOCUMENT>0000276776-22-000055-index.html : 20221025 <SEC-HEADER>0000276776-22-000055.hdr.sgml : 20221025 <ACCEPTANCE-DATETIME>20221025155653 ACCESSION NUMBER: 0000276776-22-000055 CONFORMED SUBMISSION TYPE: 497K PUBLIC DOCUMENT COUNT: 3 FILED AS OF DATE: 20221025 DATE AS OF CHANGE: 20221025 EFFECTIVENESS DATE: 20221025 FILER: COMPANY DATA: COMPANY CONFORMED NAME: PIONEER BOND FUND /DE/ CENTRAL INDEX KEY: 0000276776 IRS NUMBER: 042652279 STATE OF INCORPORATION: DE FISCAL YEAR END: 0630 FILING VALUES: FORM TYPE: 497K SEC ACT: 1933 Act SEC FILE NUMBER: 002-62436 FILM NUMBER: 221329465 BUSINESS ADDRESS: STREET 1: 60 STATE ST 5TH FL CITY: BOSTON STATE: MA ZIP: 02109 BUSINESS PHONE: 617-742-7825 MAIL ADDRESS: STREET 1: 60 STATE ST STREET 2: 5TH FLOOR CITY: BOSTON STATE: MA ZIP: 02109-1820 FORMER COMPANY: FORMER CONFORMED NAME: PIONEER BOND FUND /MA/ DATE OF NAME CHANGE: 19920703 <SERIES-AND-CLASSES-CONTRACTS-DATA> <EXISTING-SERIES-AND-CLASSES-CONTRACTS> <SERIES> <OWNER-CIK>0000276776 <SERIES-ID>S000003927 <SERIES-NAME>Pioneer Bond Fund <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000011026 <CLASS-CONTRACT-NAME>Pioneer Bond Fund: Class A <CLASS-CONTRACT-TICKER-SYMBOL>PIOBX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000011028 <CLASS-CONTRACT-NAME>Pioneer Bond Fund: Class C <CLASS-CONTRACT-TICKER-SYMBOL>PCYBX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000011029 <CLASS-CONTRACT-NAME>Pioneer Bond Fund: Class Y <CLASS-CONTRACT-TICKER-SYMBOL>PICYX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000011031 <CLASS-CONTRACT-NAME>Pioneer Bond Fund: Class R <CLASS-CONTRACT-TICKER-SYMBOL>PBFRX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000123839 <CLASS-CONTRACT-NAME>Pioneer Bond Fund: Class K <CLASS-CONTRACT-TICKER-SYMBOL>PBFKX </CLASS-CONTRACT> </SERIES> </EXISTING-SERIES-AND-CLASSES-CONTRACTS> </SERIES-AND-CLASSES-CONTRACTS-DATA> </SEC-HEADER> <DOCUMENT> <TYPE>497K <SEQUENCE>1 <FILENAME>bond110122summpro.htm <DESCRIPTION>SUMMARY PROSPECTUS <TEXT> Document 1 - file: bond110122summpro.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>bond.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 2 - file: bond.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>covers_amundipioneer2.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: covers_amundipioneer2.jpg
</DOCUMENT> </SEC-DOCUMENT>