<SEC-DOCUMENT>0001013594-20-000041-index.html : 20200121
<SEC-HEADER>0001013594-20-000041.hdr.sgml : 20200121
<ACCEPTANCE-DATETIME>20200121115306
ACCESSION NUMBER:		0001013594-20-000041
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20200121
DATE AS OF CHANGE:		20200121

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 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-52075
		FILM NUMBER:		20535688

	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:			Nierenberg Investment Management Company, Inc.
		CENTRAL INDEX KEY:			0001282683
		IRS NUMBER:				911677205
		STATE OF INCORPORATION:			WA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		19605 NE 8TH ST
		CITY:			CAMAS
		STATE:			WA
		ZIP:			98607
		BUSINESS PHONE:		360-604-8600

	MAIL ADDRESS:	
		STREET 1:		19605 NE 8TH ST
		CITY:			CAMAS
		STATE:			WA
		ZIP:			98607

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NIERENBERG INVESTMENT MANAGEMENT CO
		DATE OF NAME CHANGE:	20040304
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>geospace13ga1-123119.htm
<DESCRIPTION>AMENDMENT NO. 1 TO THE SCHEDULE 13G
<TEXT>
Document 1 - file: geospace13ga1-123119.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>geospace991-123119.htm
<DESCRIPTION>JOINT FILING AGREEMENT (RESTATED)
<TEXT>
Document 2 - file: geospace991-123119.htm

</DOCUMENT>
</SEC-DOCUMENT>