GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO's Holding History (CIK: 0000315297)

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

Q4 2014
Shares 2,000 Value ($000) $53 Avg Close $29.00 Range $24.07 - $35.32
Q3 2014
Shares 2,000 Value ($000) $70 Avg Close $41.90 Range $34.01 - $55.50
Q2 2014
Shares 2,000 Value ($000) $110 Avg Close $56.24 Range $41.63 - $66.84
Q1 2014
Shares 2,000 Value ($000) $132 Avg Close $76.66 Range $60.70 - $94.82
Q4 2013
Shares 2,000 Value ($000) $190 Avg Close $91.95 Range $79.60 - $107.93
Q3 2013
Shares 2,000 Value ($000) $169 Avg Close $74.50 Range $66.87 - $84.82
Q2 2013
Shares 2,000 Value ($000) $138 Avg Close $83.42 Range $65.31 - $108.86