X0306 4 2020-11-19 0 0001001115 GEOSPACE TECHNOLOGIES CORP GEOS 0001550990 Wheeler Walter R. 7007 PINEMONT DRIVE HOUSTON TX 77040 1 1 0 0 President & CEO Common Stock 2020-11-19 4 A 0 10000 0.00 A 127306 D Exhibit List Exhibit 24.1 Limited Power of Attorney /s/ Anthony Eppolito, as Attorney-in-fact 2020-11-19