GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

TEACHER RETIREMENT SYSTEM OF TEXAS's Holding History (CIK: 0000796848)

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

Q1 2016
Shares 1,607 Value ($000) $20 Avg Close $11.02 Range $7.62 - $14.69
Q4 2015
Shares 1,198 Value ($000) $17 Avg Close $14.23 Range $10.16 - $18.91
Q3 2015
Shares 1,619 Value ($000) $22 Avg Close $16.62 Range $13.44 - $23.45
Q2 2015
Shares 512 Value ($000) $12 Avg Close $20.88 Range $15.59 - $26.75
Q1 2015
Shares 398 Value ($000) $7 Avg Close $20.77 Range $14.95 - $28.88
Q4 2014
Shares 384 Value ($000) $10 Avg Close $29.00 Range $24.07 - $35.32
Q3 2014
Shares 485 Value ($000) $17 Avg Close $41.90 Range $34.01 - $55.50
Q2 2014
Shares 444 Value ($000) $24 Avg Close $56.24 Range $41.63 - $66.84
Q1 2014
Shares 444 Value ($000) $29 Avg Close $76.66 Range $60.70 - $94.82
Q4 2013
Shares 457 Value ($000) $43 Avg Close $91.95 Range $79.60 - $107.93
Q3 2013
Shares 1,515 Value ($000) $128 Avg Close $74.50 Range $66.87 - $84.82
Q2 2013
Shares 832 Value ($000) $57 Avg Close $83.42 Range $65.31 - $108.86