TETRA TECHNOLOGIES INC DEL

Ticker: TTI CUSIP: 88162F105 Class: Common Stock

Centerpoint Advisors, LLC's Holding History (CIK: 0001733788)

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

Q2 2018

Shares 500 Value ($000) $2 Avg Close $4.13 Range $3.18 - $4.85

Q1 2018

Shares 750 Value ($000) $3 Avg Close $3.93 Range $3.40 - $4.54

Q4 2017

Shares 750 Value ($000) $3 Avg Close $3.45 Range $2.55 - $4.43

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	500	$2	$4.13	$3.18 - $4.85
Q1 2018	750	$3	$3.93	$3.40 - $4.54
Q4 2017	750	$3	$3.45	$2.55 - $4.43