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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1001115	Geospace Technologies Corp	GEOS	Measuring & Controlling Devices, Nec (3829)	760447780

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1550921	B. Robbin Adams	7007 Pinemont Drive Houston TX 77040	Executive Vice President	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2016-02-26	2,500	$10.40	16,150	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Direct

Reported Derivative Holdings

Sec. Name	Sec. Type	Price	Expiration Date	Amount	Remaning Holdings	Nature of Ownership
Common Stock	Options (right to buy)	$14.87	2025-11-18	15,500	15,500	Direct
Common Stock	Options (right to buy)	$21.95	2020-02-25	13,000	13,000	Direct
Common Stock	Options (right to buy)	$8.78	2018-12-05	500	500	Direct

Expiration Date	Amount	Remaning Holdings	Nature of Ownership
2025-11-18	15,500	15,500	Direct
2020-02-25	13,000	13,000	Direct
2018-12-05	500	500	Direct

Footnotes

The performance option described in this line item is exercisable in installments upon the satisfaction of both (1) certain performance based vesting conditions relating to total shareholder return and (2) certain service based vesting conditions. Additional details regarding vesting and the form and terms of this performance option are available in the Company's Current Report on Form 8-K filed on November 20, 2015.
This option vested in four equal annual installments beginning February 25, 2011 and is now fully exercisable.
This option vested in four equal annual installments beginning February 5, 2012 and is now fully exercisable.