UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 8, 2018

GEOSPACE TECHNOLOGIES CORPORATION

(Exact name of registrant as specified in its charter)

Commission File Number: 001-13601

7007 Pinemont Drive,

Houston, TX 77040

(Address of principal executive offices, including zip code)

(713) 986-4444

(Registrant’s telephone number, including area code)

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 1.01. Entry into a Material Definitive Agreement

On November 8, 2018, Geospace Technologies Corporation (the “Company”) entered into a Fifth Amendment (the “Amendment”) amending its existing Loan Agreement dated September 27, 2013, among the Company, certain domestic subsidiaries of the Company, as guarantors, and Frost Bank, as amended by that certain First Amendment to Loan Agreement dated December 16, 2013 to be effective as of September 27, 2013, that Second Amendment to Loan Agreement dated May 4, 2015, that Third Amendment to Loan Agreement dated May 9, 2017, and that Fourth Amendment to Loan Agreement dated October 25, 2017. The Amendment extends maturity of the Loan Agreement to April 30, 2020.

The above Amendment is qualified in its entirety by reference to the complete text of the Amendment filed as Exhibit 10.1 hereto, which is incorporated by reference.

Item 9.01. Financial Statements and Exhibits

Exhibit 10.1    Fifth Amendment to Loan Agreement dated November  8, 2018 among Geospace Technologies Corporation, as borrower, certain subsidiaries of Geospace Technologies Corporation, as guarantors, and Frost Bank, as lender.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.