GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

AMICA MUTUAL INSURANCE CO's Holding History (CIK: 0000857508)

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

Q1 2017

Shares 42,988 Value ($000) $698 Avg Close $18.95 Range $13.80 - $24.37

Q4 2016

Shares 47,540 Value ($000) $968 Avg Close $20.24 Range $16.77 - $23.20

Q3 2016

Shares 111,331 Value ($000) $2,169 Avg Close $17.28 Range $14.51 - $19.96

Q2 2016

Shares 217,010 Value ($000) $3,552 Avg Close $16.29 Range $11.82 - $19.92

Q1 2016

Shares 217,010 Value ($000) $2,678 Avg Close $11.02 Range $7.62 - $14.69

Q4 2015

Shares 217,010 Value ($000) $3,053 Avg Close $14.23 Range $10.16 - $18.91

Q3 2015

Shares 182,505 Value ($000) $2,520 Avg Close $16.62 Range $13.44 - $23.45

Q2 2015

Shares 182,505 Value ($000) $4,207 Avg Close $20.88 Range $15.59 - $26.75

Q1 2015

Shares 158,203 Value ($000) $2,612 Avg Close $20.77 Range $14.95 - $28.88

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	42,988	$698	$18.95	$13.80 - $24.37
Q4 2016	47,540	$968	$20.24	$16.77 - $23.20
Q3 2016	111,331	$2,169	$17.28	$14.51 - $19.96
Q2 2016	217,010	$3,552	$16.29	$11.82 - $19.92
Q1 2016	217,010	$2,678	$11.02	$7.62 - $14.69
Q4 2015	217,010	$3,053	$14.23	$10.16 - $18.91
Q3 2015	182,505	$2,520	$16.62	$13.44 - $23.45
Q2 2015	182,505	$4,207	$20.88	$15.59 - $26.75
Q1 2015	158,203	$2,612	$20.77	$14.95 - $28.88