<SEC-DOCUMENT>0001659213-18-000004-index.html : 20181212 <SEC-HEADER>0001659213-18-000004.hdr.sgml : 20181212 <ACCEPTANCE-DATETIME>20181212163238 ACCESSION NUMBER: 0001659213-18-000004 CONFORMED SUBMISSION TYPE: SC 13D/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20181212 DATE AS OF CHANGE: 20181212 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: TX FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: SC 13D/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-52075 FILM NUMBER: 181231189 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: Lemelson Capital Management LLC CENTRAL INDEX KEY: 0001659213 IRS NUMBER: 460610458 STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A BUSINESS ADDRESS: STREET 1: 225 CEDAR HILL STREET STREET 2: SUITE 200 CITY: MARLBOROUGH STATE: MA ZIP: 01752 BUSINESS PHONE: 508-63-2281 MAIL ADDRESS: STREET 1: 225 CEDAR HILL STREET STREET 2: SUITE 200 CITY: MARLBOROUGH STATE: MA ZIP: 01752 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13D/A <SEQUENCE>1 <FILENAME>lemelsongeos2018form13dexv3.txt <DESCRIPTION>13DA <TEXT> Document 1 - file: lemelsongeos2018form13dexv3.txt
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