Cite Filings / GEOS / 0001193125-12-054532

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424B4

Prospectus

GEOSPACE TECHNOLOGIES CORP Filed 2012-02-13 Acc 0001193125-12-054532

Documents 1

424B4 Prospectus , d296582d424b4.htm

Around this filing

2012-02-16 424B1 Prospectus
2012-02-16 8-K Material agreement · Other events
2012-02-15 8-K Other events
2012-02-14 FWP Free Writing Prospectus
2012-02-13 424B4 Prospectus
2012-02-13 8-K Executive or director change · Other events
2012-02-09 SC 13G Amended Statement of Ownership

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