DAWSON GEOPHYSICAL CO NEW

Ticker: DWSN CUSIP: 239360100 Class: COM

Russell Investments Group, Ltd.'s Holding History (CIK: 0001692234)

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

Q1 2019

Shares 28,500 Value ($000) $84 Avg Close $3.06 Range $2.46 - $3.65

Q4 2018

Shares 30,700 Value ($000) $104 Avg Close $4.06 Range $2.60 - $5.61

Q3 2018

Shares 36,172 Value ($000) $224 Avg Close $5.63 Range $4.70 - $7.07

Q2 2018

Shares 24,272 Value ($000) $191 Avg Close $6.03 Range $4.59 - $7.17

Q1 2018

Shares 2,650 Value ($000) $18 Avg Close $5.01 Range $3.96 - $5.79

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	28,500	$84	$3.06	$2.46 - $3.65
Q4 2018	30,700	$104	$4.06	$2.60 - $5.61
Q3 2018	36,172	$224	$5.63	$4.70 - $7.07
Q2 2018	24,272	$191	$6.03	$4.59 - $7.17
Q1 2018	2,650	$18	$5.01	$3.96 - $5.79