GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q3 2020

Shares 10,603 Value ($000) $66 Avg Close $6.83 Range $5.64 - $8.15

Q2 2014

Shares 8,000 Value ($000) $441 Avg Close $56.24 Range $41.63 - $66.84

Q1 2014

Shares 8,000 Value ($000) $529 Avg Close $76.66 Range $60.70 - $94.82

Q4 2013

Shares 8,000 Value ($000) $757 Avg Close $91.95 Range $79.60 - $107.93

Q3 2013

Shares 21,157 Value ($000) $1,783 Avg Close $74.50 Range $66.87 - $84.82

Q2 2013

Shares 16,950 Value ($000) $1,171 Avg Close $83.42 Range $65.31 - $108.86

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2020	10,603	$66	$6.83	$5.64 - $8.15
Q2 2014	8,000	$441	$56.24	$41.63 - $66.84
Q1 2014	8,000	$529	$76.66	$60.70 - $94.82
Q4 2013	8,000	$757	$91.95	$79.60 - $107.93
Q3 2013	21,157	$1,783	$74.50	$66.87 - $84.82
Q2 2013	16,950	$1,171	$83.42	$65.31 - $108.86