<SEC-DOCUMENT>0001258897-17-000807-index.html : 20170209 <SEC-HEADER>0001258897-17-000807.hdr.sgml : 20170209 <ACCEPTANCE-DATETIME>20170209075820 ACCESSION NUMBER: 0001258897-17-000807 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20170209 DATE AS OF CHANGE: 20170209 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Aegion Corp CENTRAL INDEX KEY: 0000353020 STANDARD INDUSTRIAL CLASSIFICATION: WATER, SEWER, PIPELINE, COMM AND POWER LINE CONSTRUCTION [1623] IRS NUMBER: 133032158 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-35120 FILM NUMBER: 17584442 BUSINESS ADDRESS: STREET 1: 17988 EDISON AVENUE CITY: CHESTERFIELD STATE: MO ZIP: 63005 BUSINESS PHONE: 6365308000 MAIL ADDRESS: STREET 1: 17988 EDISON AVENUE CITY: CHESTERFIELD STATE: MO ZIP: 63005 FORMER COMPANY: FORMER CONFORMED NAME: INSITUFORM TECHNOLOGIES INC DATE OF NAME CHANGE: 19930617 FORMER COMPANY: FORMER CONFORMED NAME: INSITUFORM OF NORTH AMERICA INC/TN/ DATE OF NAME CHANGE: 19930617 FORMER COMPANY: FORMER CONFORMED NAME: INSITUFORM OF NORTH AMERICA INC DATE OF NAME CHANGE: 19921217 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: DIMENSIONAL FUND ADVISORS LP CENTRAL INDEX KEY: 0000354204 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] IRS NUMBER: 222370029 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 6300 BEE CAVE ROAD STREET 2: BUILDING ONE CITY: AUSTIN STATE: TX ZIP: 78746 BUSINESS PHONE: (512) 306-7400 MAIL ADDRESS: STREET 1: 6300 BEE CAVE ROAD STREET 2: BUILDING ONE CITY: AUSTIN STATE: TX ZIP: 78746 FORMER COMPANY: FORMER CONFORMED NAME: DIMENSIONAL FUND ADVISORS INC DATE OF NAME CHANGE: 19920929 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G/A <SEQUENCE>1 <FILENAME>dfs009.htm <DESCRIPTION>SCHEDULE 13G/A <TEXT> Document 1 - file: dfs009.htm
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