<SEC-DOCUMENT>0001193125-17-291415-index.html : 20170922 <SEC-HEADER>0001193125-17-291415.hdr.sgml : 20170922 <ACCEPTANCE-DATETIME>20170922162803 ACCESSION NUMBER: 0001193125-17-291415 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 3 CONFORMED PERIOD OF REPORT: 20170921 ITEM INFORMATION: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20170922 DATE AS OF CHANGE: 20170922 FILER: COMPANY DATA: COMPANY CONFORMED NAME: GEOSPACE TECHNOLOGIES CORP CENTRAL INDEX KEY: 0001001115 STANDARD INDUSTRIAL CLASSIFICATION: MEASURING & CONTROLLING DEVICES, NEC [3829] IRS NUMBER: 760447780 STATE OF INCORPORATION: TX FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-13601 FILM NUMBER: 171097880 BUSINESS ADDRESS: STREET 1: 7007 PINEMONT DR. CITY: HOUSTON STATE: TX ZIP: 77040 BUSINESS PHONE: 7139864444 MAIL ADDRESS: STREET 1: 7007 PINEMONT DR. CITY: HOUSTON STATE: TX ZIP: 77040 FORMER COMPANY: FORMER CONFORMED NAME: OYO GEOSPACE CORP DATE OF NAME CHANGE: 19950919 </SEC-HEADER> <DOCUMENT> <TYPE>8-K <SEQUENCE>1 <FILENAME>d453261d8k.htm <DESCRIPTION>8-K <TEXT> Document 1 - file: d453261d8k.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-3.1 <SEQUENCE>2 <FILENAME>d453261dex31.htm <DESCRIPTION>EX-3.1 <TEXT> Document 2 - file: d453261dex31.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-3.2 <SEQUENCE>3 <FILENAME>d453261dex32.htm <DESCRIPTION>EX-3.2 <TEXT> Document 3 - file: d453261dex32.htm
</DOCUMENT> </SEC-DOCUMENT>