0001752724-19-183327.txt : 20191127 0001752724-19-183327.hdr.sgml : 20191127 20191127151439 ACCESSION NUMBER: 0001752724-19-183327 CONFORMED SUBMISSION TYPE: NPORT-P PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20190930 FILED AS OF DATE: 20191127 PERIOD START: 20200331 FILER: COMPANY DATA: COMPANY CONFORMED NAME: PIONEER SERIES TRUST X CENTRAL INDEX KEY: 0001174520 IRS NUMBER: 030460956 FISCAL YEAR END: 0331 FILING VALUES: FORM TYPE: NPORT-P SEC ACT: 1940 Act SEC FILE NUMBER: 811-21108 FILM NUMBER: 191257194 BUSINESS ADDRESS: STREET 1: 60 STATE STREET STREET 2: 13TH FLOOR CITY: BOSTON STATE: MA ZIP: 02109 BUSINESS PHONE: 6174224947 MAIL ADDRESS: STREET 1: 60 STATE STREET STREET 2: 13TH FLOOR CITY: BOSTON STATE: MA ZIP: 02109 FORMER COMPANY: FORMER CONFORMED NAME: PIONEER FUNDAMENTAL GROWTH FUND DATE OF NAME CHANGE: 20051213 FORMER COMPANY: FORMER CONFORMED NAME: PIONEER LARGE CAP GROWTH FUND DATE OF NAME CHANGE: 20020530 0001174520 S000004137 Pioneer Fundamental Growth Fund 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Bradley Mark E. Bradley Treasurer and Chief Accounting and Financial Officer