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Form SC 13D/A - General statement of acquisition of beneficial ownership: [Amend]
SEC Accession No. 0001013594-20-000664
Filing Date
2020-08-26
Accepted
2020-08-26 17:14:59
Documents
1

Document Format Files

Seq Description Document Type Size
1 AMENDMENT NO. 1 TO THE SCHEDULE 13D geospace13da1-082420.htm SC 13D/A 94957
  Complete submission text file 0001013594-20-000664.txt   96603
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.: 201138052
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