GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

Municipal Employees' Retirement System of Michigan's Holding History (CIK: 0001588873)

Note: Option positions (PUT/CALL) are excluded.

Q1 2020

Shares 4,080 Value ($000) $26 Avg Close $11.89 Range $4.61 - $16.96

Q4 2019

Shares 4,080 Value ($000) $68 Avg Close $15.19 Range $13.18 - $17.66

Q3 2019

Shares 4,080 Value ($000) $63 Avg Close $14.43 Range $11.61 - $16.61

Q2 2019

Shares 4,080 Value ($000) $62 Avg Close $13.76 Range $11.85 - $15.89

Q1 2019

Shares 3,830 Value ($000) $50 Avg Close $14.62 Range $10.01 - $16.92

Q4 2018

Shares 3,830 Value ($000) $39 Avg Close $13.38 Range $9.93 - $15.93

Q2 2018

Shares 3,830 Value ($000) $54 Avg Close $11.58 Range $9.46 - $14.81

Q1 2018

Shares 5,040 Value ($000) $50 Avg Close $12.26 Range $9.18 - $15.66

Q4 2017

Shares 5,040 Value ($000) $65 Avg Close $15.45 Range $12.09 - $18.71

Q3 2017

Shares 5,040 Value ($000) $90 Avg Close $15.21 Range $13.08 - $17.99

Q2 2017

Shares 3,180 Value ($000) $44 Avg Close $15.37 Range $13.59 - $17.04

Q1 2017

Shares 2,960 Value ($000) $48 Avg Close $18.95 Range $13.80 - $24.37

Q4 2016

Shares 2,960 Value ($000) $60 Avg Close $20.24 Range $16.77 - $23.20

Q3 2016

Shares 2,960 Value ($000) $58 Avg Close $17.28 Range $14.51 - $19.96

Q2 2016

Shares 2,920 Value ($000) $48 Avg Close $16.29 Range $11.82 - $19.92

Q1 2016

Shares 2,860 Value ($000) $35 Avg Close $11.02 Range $7.62 - $14.69

Q4 2015

Shares 2,670 Value ($000) $38 Avg Close $14.23 Range $10.16 - $18.91

Q3 2015

Shares 2,560 Value ($000) $35 Avg Close $16.62 Range $13.44 - $23.45

Q2 2015

Shares 2,500 Value ($000) $58 Avg Close $20.88 Range $15.59 - $26.75

Q1 2015

Shares 2,500 Value ($000) $41 Avg Close $20.77 Range $14.95 - $28.88

Q4 2014

Shares 3,400 Value ($000) $90 Avg Close $29.00 Range $24.07 - $35.32

Q3 2014

Shares 3,400 Value ($000) $120 Avg Close $41.90 Range $34.01 - $55.50

Q2 2014

Shares 3,100 Value ($000) $171 Avg Close $56.24 Range $41.63 - $66.84

Q1 2014

Shares 3,100 Value ($000) $205 Avg Close $76.66 Range $60.70 - $94.82

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	4,080	$26	$11.89	$4.61 - $16.96
Q4 2019	4,080	$68	$15.19	$13.18 - $17.66
Q3 2019	4,080	$63	$14.43	$11.61 - $16.61
Q2 2019	4,080	$62	$13.76	$11.85 - $15.89
Q1 2019	3,830	$50	$14.62	$10.01 - $16.92
Q4 2018	3,830	$39	$13.38	$9.93 - $15.93
Q2 2018	3,830	$54	$11.58	$9.46 - $14.81
Q1 2018	5,040	$50	$12.26	$9.18 - $15.66
Q4 2017	5,040	$65	$15.45	$12.09 - $18.71
Q3 2017	5,040	$90	$15.21	$13.08 - $17.99
Q2 2017	3,180	$44	$15.37	$13.59 - $17.04
Q1 2017	2,960	$48	$18.95	$13.80 - $24.37
Q4 2016	2,960	$60	$20.24	$16.77 - $23.20
Q3 2016	2,960	$58	$17.28	$14.51 - $19.96
Q2 2016	2,920	$48	$16.29	$11.82 - $19.92
Q1 2016	2,860	$35	$11.02	$7.62 - $14.69
Q4 2015	2,670	$38	$14.23	$10.16 - $18.91
Q3 2015	2,560	$35	$16.62	$13.44 - $23.45
Q2 2015	2,500	$58	$20.88	$15.59 - $26.75
Q1 2015	2,500	$41	$20.77	$14.95 - $28.88
Q4 2014	3,400	$90	$29.00	$24.07 - $35.32
Q3 2014	3,400	$120	$41.90	$34.01 - $55.50
Q2 2014	3,100	$171	$56.24	$41.63 - $66.84
Q1 2014	3,100	$205	$76.66	$60.70 - $94.82