<SEC-DOCUMENT>0001086364-15-000271-index.html : 20150115 <SEC-HEADER>0001086364-15-000271.hdr.sgml : 20150115 <ACCEPTANCE-DATETIME>20150115145701 ACCESSION NUMBER: 0001086364-15-000271 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20150115 DATE AS OF CHANGE: 20150115 SUBJECT COMPANY: 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: DE FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-52075 FILM NUMBER: 15529636 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 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: BlackRock Inc. CENTRAL INDEX KEY: 0001364742 STANDARD INDUSTRIAL CLASSIFICATION: SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211] IRS NUMBER: 320174431 STATE OF INCORPORATION: DE FISCAL YEAR END: 0226 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 55 EAST 52ND STREET CITY: NEW YORK STATE: NY ZIP: 10055 BUSINESS PHONE: 212-810-5300 MAIL ADDRESS: STREET 1: 55 EAST 52ND STREET CITY: NEW YORK STATE: NY ZIP: 10055 FORMER COMPANY: FORMER CONFORMED NAME: BlackRock, Inc. DATE OF NAME CHANGE: 20060929 FORMER COMPANY: FORMER CONFORMED NAME: New BlackRock, Inc. DATE OF NAME CHANGE: 20060601 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G/A <SEQUENCE>1 <FILENAME>geospace.technologies.c.txt <TEXT> Document 1 - file: geospace.technologies.c.txt
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