TETRA TECHNOLOGIES INC DEL

Ticker: TTI CUSIP: 88162F105 Class: Common Stock

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q3 2018

Shares 43,900 Value ($000) $198 Avg Close $4.53 Range $4.09 - $5.11

Q2 2018

Shares 192,800 Value ($000) $858 Avg Close $4.13 Range $3.18 - $4.85

Q1 2018

Shares 267,100 Value ($000) $1,002 Avg Close $3.93 Range $3.40 - $4.54

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	43,900	$198	$4.53	$4.09 - $5.11
Q2 2018	192,800	$858	$4.13	$3.18 - $4.85
Q1 2018	267,100	$1,002	$3.93	$3.40 - $4.54