| 2026-05-08 | 10-Q | 10.1 | First Amendment to Credit Agreement dated effective April 27, 2026 among the Company and each other person from time to time party thereto as borrower, and Woodforest National Bank, as lender. |
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| 2026-02-12 | 10-Q | 10.1 | Limited Waiver dated December 31, 2025 to First Amended and Restated Credit Agreement among the Company and each other person time to time party thereto as a borrower, and Woodforest National Bank, as lender. |
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| 2025-11-21 | 10-K | 10.9 | Employment Agreement effective January 1, 2025, between the Company and Ronald Todd Bushey.* ** |
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| 2025-09-04 | 8-K | 10.1 | First Amended and Restated Credit Agreement dated August 29, 2025 among Geospace Technologies Corporation, and each other person from time to time party thereto as a borrower, and Woodforest National Bank, as lender. |
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| 2025-08-08 | 10-Q | 10.1 | First Amendment to Credit Agreement dated July 26, 2025 among the Company, and each other person from time to time party thereto as borrower, and Woodforest National Bank, as lender. |
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| 2025-03-04 | 8-K | 10.2 | Employment Agreement between the Company and Robert L. Curda. |
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| 2025-03-04 | 8-K | 10.1 | Employment Agreement between the Company and Richard J. Kelley. |
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| 2025-02-06 | 10-Q | 10.1 | Employment Termination Agreement dated January 1, 2025 between the Company and Walter R. Wheeler. |
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| 2024-11-22 | 10-K | 10.5 | Employment Agreement dated April 29, 2024 between Richard Kelley and the Company.** |
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| 2023-11-17 | 10-K | 10.21 | Employment Termination and Consulting Agreement dated June 30, 2023 between the Company and Michael J. Sheen. ** |
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| 2023-08-01 | 8-K | 10.1 | Credit Agreement dated July 26, 2023 among Geospace Technologies Corporation, and each other person from time to time party thereto as a borrower, and Woodforest National Bank, as lender. |
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| 2022-05-10 | 8-K | 10.1 | Revolving Loan and Security Agreement dated May 6, 2022 among Geospace Technologies Corporation and GTC, Inc., as borrowers, Amerisource Funding, Inc. and Woodforest National Bank, as lenders, and Amerisource Funding, Inc., as Administrative Agent for the lenders. |
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| 2021-03-29 | 8-K | 10.1 | Eighth Amendment to Loan Agreement dated March 25, 2021 among Geospace Technologies Corporation, as borrower, certain subsidiaries of Geospace Technologies Corporation, as guarantors, and Frost Bank, as lender. |
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| 2020-11-23 | 8-K | 10.1 | Second Amendment, effective November 17, 2020, to Employment Agreement dated as of August 1, 1997, between the Company and Michael J. Sheen |
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| 2019-11-22 | 8-K | 10.1 | Consulting Agreement dated November 21, 2019 between Geospace Technologies Corporation, and Thomas T. McEntire. |
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| 2019-11-18 | 8-K | 10.1 | Seventh Amendment to Loan Agreement dated November 15, 2019 among Geospace Technologies Corporation, as borrower, certain subsidiaries of Geospace Technologies Corporation, as guarantors, and Frost Bank, as lender. |
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| 2019-06-04 | 8-K | 10.1 | Commercial Contract – Improved Property, dated June 3, 2019 by and between GTC, Inc. and Harmony Public Schools. |
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| 2019-05-03 | 10-Q | 10.1 | Form of Director Restricted Stock Unit Award Agreement.* |
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| 2019-04-01 | 8-K | 10.1 | Sixth Amendment to Loan Agreement dated March 29, 2019 among Geospace Technologies Corporation, as borrower, certain subsidiaries of Geospace Technologies Corporation, as guarantors, and Frost Bank, as lender. |
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| 2018-11-26 | 8-K | 10.1 | Form of Employee Restricted Stock Unit Award Agreement. |
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| 2018-11-13 | 8-K | 10.1 | Fifth Amendment to Loan Agreement dated November |
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| 2017-12-01 | 10-K | 10.28 | Third Amendment to the Loan Agreement effective May 9, 2017 by and between Geospace Technologies Corporation as borrower, certain subsidiaries of Geospace Technologies Corporation, as guarantors, and Frost Bank, as lender.** |
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| 2017-12-01 | 10-K | 10.23 | Geospace Technologies Corporation Annual Bonus Program.** |
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| 2017-12-01 | 10-K | 10.22 | Geospace Technologies Corporation Fiscal Year 2017 Bonus Plan.** |
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| 2017-10-27 | 8-K | 10.1 | Fourth Amendment to Loan Agreement dated October 25, 2017 among Geospace Technologies Corporation, as borrower, certain subsidiaries of Geospace Technologies Corporation, as guarantors, and Frost Bank, as lender. |
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| 2015-11-20 | 8-K | 10.1 | Form of Performance Option Agreement |
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| 2015-05-26 | 8-K | 10.1 | Form of Amended and Restated Indemnity Agreement. |
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| 2015-05-08 | 10-Q | 10.2 | Revolving Promissory Note Agreement effective May 4, 2015 by and between Geospace Technologies Corporation borrower, certain subsidiaries of Geospace Technologies Corporation, as guarantors, and Frost Bank, as lender. |
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| 2015-05-08 | 10-Q | 10.1 | Second-Amendment to Credit Agreement effective May 4,2015 by and between Geospace Technologies Corporation borrower certain subsidiaries of Geospace Technologies Corporation, as guarantors, and Frost Bank, as lender |
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| 2015-04-07 | 8-K | 10.1 | Waiver and Consent Letter to Loan Agreement effective April 6, 2015 among Geospace Technologies Corporation, as borrower, certain subsidiaries of Geospace Technologies Corporation, as guarantors, and Frost Bank, as lender. |
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| 2014-02-12 | 8-K | 10 | FORM OF DIRECTOR RESTRICTED STOCK AWARD AGREEMENT |
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| 2014-02-06 | 10-Q | 10.1 | Geospace Technologies Corporation Fiscal Year 2014 Bonus Plan. |
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| 2013-12-18 | 8-K | 10 | FIRST AMENDMENT TO LOAN AGREEMENT |
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| 2013-11-22 | 10-K | 10.9 | Amendment No. 6 to OYO Geospace Corporation 1997 Key Employee Stock Option Plan, approved by stockholders August 20, 2013. |
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| 2013-11-22 | 10-K | 10.8 | Amendment No. 5 to OYO Geospace Corporation 1997 Key Employee Stock Option Plan, dated January 1, 2009. |
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| 2013-10-01 | 8-K | 10.2 | Revolving Promissory Note dated September 27, 2013 made by Geospace Technologies Corporation payable to Frost Bank. |
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| 2013-10-01 | 8-K | 10.1 | Loan Agreement dated September 27, 2013 among Geospace Technologies Corporation, as borrower, certain subsidiaries of Geospace Technologies Corporation, as guarantors, and Frost Bank, as lender. |
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| 2013-02-27 | 8-K | 10 | NOTE MODIFICATION, RENEWAL AND EXTENSION AGREEMENT DATED FEBRUARY 22, 2013, BY AND BETWEEN FROST BANK AND GEOSPACE TECHNOLOGIES CORPORATION. |
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| 2013-02-27 | 8-K | 10 | THIRD AMENDMENT TO LOAN AGREEMENT DATED FEBRUARY 22, 2013 BY AND AMONG GEOSPACE TECHNOLOGIES CORPORATION, AS BORROWER, CERTAIN SUBSIDIARIES OF GEOSPACE TECHNOLOGIES CORPORATION, AS GUARANTORS, AND FROST BANK, AS LENDER. |
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| 2013-02-07 | 10-Q | 10.1 | Geospace Technologies Corporation Fiscal Year 2013 Bonus Plan. |
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| 2012-04-26 | 8-K | 10 | SECOND AMENDMENT TO LOAN AGREEMENT EFFECTIVE MARCH 31, 2012, AMONG OYO GEOSPACE CORPORATION, AS BORROWER, CERTAIN SUBSIDIARIES OF OYO GEOSPACE CORPORATION, AS GUARANTORS, AND THE FROST NATIONAL BANK, AS LENDER. |
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| 2012-02-02 | 10-Q | 10.1 | OYO GEOSPACE CORPORATION FISCAL YEAR 2012 BONUS PLAN |
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| 2011-03-08 | 8-K | 10.3 | REVOLVING PROMISSORY NOTE |
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| 2011-03-08 | 8-K | 10.2 | FIRST AMENDMENT TO LOAN AGREEMENT |
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| 2011-03-08 | 8-K | 10.1 | $25.0 MILLION LOAN AGREEMENT |
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| 2011-02-04 | 10-Q | 10.1 | FISCAL YEAR 2011 BONUS PLAN |
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| 2010-02-05 | 10-Q | 10.1 | OYO GEOSPACE CORPORATION FISCAL YEAR 2010 BONUS PLAN |
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| 2009-05-04 | 8-K | 10.1 | SIXTH AMENDMENT TO LOAN AGREEMENT DATED APRIL 30, 2009, AMONG CONCORD TECHNOLOGIES, LP, GEOSPACE ENGINEERING RESOURCES INTERNATIONAL, LP, GEOSPACE TECHNOLOGIES, LP, OYO INSTRUMENTS, LP, OYOG OPERATIONS, LP AND REGIONS BANK. |
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| 2009-02-06 | 10-Q | 10.3 | FIRST AMENDMENT TO EMPLOYMENT AGREEMENT BETWEEN THE COMPANY AND MICHAEL J. SHEEN |
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| 2009-02-06 | 10-Q | 10.2 | FIRST AMENDMENT TO EMPLOYMENT AGREEMENT BETWEEN THE COMPANY AND GARY D. OWENS |
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| 2009-02-06 | 10-Q | 10.1 | OYO GEOSPACE CORPORATION FISCAL YEAR 2009 BONUS PLAN |
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