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Filing Detail
Form SC 13D/A - General statement of acquisition of beneficial ownership: [Amend]
SEC Accession No. 0001013594-19-000118
Filing Date
2019-02-08
Accepted
2019-02-08 16:58:41
Documents
2

Document Format Files

Seq Description Document Type Size
1 FEBRUARY 8, 2019 geospace13ga-020819.htm SC 13D/A 144058
2 JOINT FILING AGREEMENT (RESTATED) geospaceex99.htm EX-99.1 13871
  Complete submission text file 0001013594-19-000118.txt   159574
Mailing Address 7007 PINEMONT DR. HOUSTON TX 77040
Business Address 7007 PINEMONT DR. HOUSTON TX 77040 7139864444
GEOSPACE TECHNOLOGIES CORP (Subject) CIK: 0001001115 (see all company filings)

IRS No.: 760447780 | State of Incorp.: TX | Fiscal Year End: 0930
Type: SC 13D/A | Act: 34 | File No.: 005-52075 | Film No.: 19580745
SIC: 3829 Measuring & Controlling Devices, NEC

Mailing Address 19605 NE 8TH ST CAMAS WA 98607
Business Address 19605 NE 8TH ST CAMAS WA 98607 360-604-8600
Nierenberg Investment Management Company, Inc. (Filed by) CIK: 0001282683 (see all company filings)

IRS No.: 911677205 | State of Incorp.: WA | Fiscal Year End: 1231
Type: SC 13D/A