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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001398344-18-002256
Filing Date
2018-02-14
Accepted
2018-02-14 09:49:42
Documents
1

Document Format Files

Seq Description Document Type Size
1 fp0030621_sc13ga.htm SC 13G/A 62495
  Complete submission text file 0001398344-18-002256.txt   64129
Mailing Address 1201 N CALVERT STREET BALTIMORE MD 21202
Business Address 1201 N CALVERT ST BALTIMORE MD 21201 4108373234
BROWN CAPITAL MANAGEMENT LLC (Filed by) CIK: 0000885062 (see all company filings)

IRS No.: 521304372 | State of Incorp.: MD | Fiscal Year End: 1231
Type: SC 13G/A

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 13G/A | Act: 34 | File No.: 005-52075 | Film No.: 18608070
SIC: 3829 Measuring & Controlling Devices, NEC