DAWSON GEOPHYSICAL CO NEW

Ticker: DWSN CUSIP: 239360100 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q1 2019
Shares 32,305 Value ($000) $95 Avg Close $3.06 Range $2.46 - $3.65
Q4 2018
Shares 32,305 Value ($000) $109 Avg Close $4.06 Range $2.60 - $5.61
Q3 2018
Shares 32,305 Value ($000) $200 Avg Close $5.63 Range $4.70 - $7.07
Q2 2018
Shares 32,305 Value ($000) $255 Avg Close $6.03 Range $4.59 - $7.17
Q1 2017
Shares 40,601 Value ($000) $226 Avg Close $5.89 Range $4.30 - $6.95
Q4 2016
Shares 41,501 Value ($000) $334 Avg Close $6.15 Range $5.10 - $7.32
Q3 2016
Shares 42,701 Value ($000) $326 Avg Close $6.08 Range $5.11 - $7.21
Q2 2016
Shares 42,301 Value ($000) $345 Avg Close $4.96 Range $3.25 - $6.85