TETRA TECH INC NEW

Ticker: TTEK CUSIP: 88162G103 Class: EQTY

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

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

Q1 2021

Shares 7,100 Value ($000) $964 Avg Close $26.50 Range $22.63 - $28.94

Q4 2020

Shares 9,300 Value ($000) $1,076 Avg Close $22.53 Range $19.06 - $25.44

Q2 2020

Shares 7,088 Value ($000) $561 Avg Close $15.19 Range $12.93 - $17.00

Q1 2020

Shares 28,872 Value ($000) $2,039 Avg Close $17.03 Range $12.72 - $19.87

Q4 2019

Shares 33,018 Value ($000) $2,844 Avg Close $17.32 Range $16.24 - $18.07

Q3 2019

Shares 78,080 Value ($000) $6,775 Avg Close $16.34 Range $14.60 - $17.46

Q2 2019

Shares 72,900 Value ($000) $5,726 Avg Close $13.48 Range $11.77 - $15.78

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	7,100	$964	$26.50	$22.63 - $28.94
Q4 2020	9,300	$1,076	$22.53	$19.06 - $25.44
Q2 2020	7,088	$561	$15.19	$12.93 - $17.00
Q1 2020	28,872	$2,039	$17.03	$12.72 - $19.87
Q4 2019	33,018	$2,844	$17.32	$16.24 - $18.07
Q3 2019	78,080	$6,775	$16.34	$14.60 - $17.46
Q2 2019	72,900	$5,726	$13.48	$11.77 - $15.78