TETRA TECH INC NEW

Ticker: TTEK CUSIP: 88162G103 Class: EQTY

THIRD AVENUE MANAGEMENT LLC's Holding History (CIK: 0001099281)

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

Q4 2018

Shares 119,797 Value ($000) $6,202 Avg Close $12.40 Range $9.76 - $14.51

Q3 2018

Shares 131,673 Value ($000) $8,994 Avg Close $13.24 Range $11.60 - $14.44

Q2 2018

Shares 131,733 Value ($000) $7,707 Avg Close $10.68 Range $9.26 - $11.77

Q1 2018

Shares 131,444 Value ($000) $6,435 Avg Close $9.88 Range $8.93 - $10.68

Q4 2017

Shares 131,444 Value ($000) $6,330 Avg Close $9.70 Range $9.21 - $10.18

Q3 2017

Shares 131,444 Value ($000) $6,119 Avg Close $8.79 Range $7.99 - $9.67

Q2 2017

Shares 131,444 Value ($000) $6,014 Avg Close $8.91 Range $7.98 - $9.55

Q1 2017

Shares 149,244 Value ($000) $6,097 Avg Close $8.29 Range $7.77 - $8.97

Q4 2016

Shares 149,244 Value ($000) $6,440 Avg Close $8.08 Range $6.96 - $8.86

Q3 2016

Shares 149,891 Value ($000) $5,317 Avg Close $6.78 Range $6.02 - $7.25

Q2 2016

Shares 149,836 Value ($000) $4,607 Avg Close $5.98 Range $5.60 - $6.35

Q1 2016

Shares 270,165 Value ($000) $8,056 Avg Close $5.32 Range $4.57 - $6.01

Q4 2015

Shares 270,075 Value ($000) $7,027 Avg Close $5.34 Range $4.76 - $5.64

Q3 2015

Shares 346,716 Value ($000) $8,429 Avg Close $5.12 Range $4.82 - $5.50

Q2 2015

Shares 408,753 Value ($000) $10,480 Avg Close $5.12 Range $4.77 - $5.50

Q1 2015

Shares 408,753 Value ($000) $9,818 Avg Close $4.94 Range $4.60 - $5.40

Q4 2014

Shares 408,665 Value ($000) $10,911 Avg Close $5.23 Range $4.74 - $5.57

Q3 2014

Shares 1,238,251 Value ($000) $30,932 Avg Close $5.21 Range $4.59 - $5.65

Q2 2014

Shares 1,238,251 Value ($000) $34,052 Avg Close $5.47 Range $5.05 - $6.00

Q1 2014

Shares 1,421,072 Value ($000) $42,050 Avg Close $5.82 Range $5.47 - $6.18

Q4 2013

Shares 1,421,072 Value ($000) $39,762 Avg Close $5.40 Range $4.77 - $6.00

Q3 2013

Shares 1,280,861 Value ($000) $33,161 Avg Close $4.79 Range $4.44 - $5.21

Q2 2013

Shares 927,198 Value ($000) $21,798 Avg Close $5.31 Range $4.51 - $6.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	119,797	$6,202	$12.40	$9.76 - $14.51
Q3 2018	131,673	$8,994	$13.24	$11.60 - $14.44
Q2 2018	131,733	$7,707	$10.68	$9.26 - $11.77
Q1 2018	131,444	$6,435	$9.88	$8.93 - $10.68
Q4 2017	131,444	$6,330	$9.70	$9.21 - $10.18
Q3 2017	131,444	$6,119	$8.79	$7.99 - $9.67
Q2 2017	131,444	$6,014	$8.91	$7.98 - $9.55
Q1 2017	149,244	$6,097	$8.29	$7.77 - $8.97
Q4 2016	149,244	$6,440	$8.08	$6.96 - $8.86
Q3 2016	149,891	$5,317	$6.78	$6.02 - $7.25
Q2 2016	149,836	$4,607	$5.98	$5.60 - $6.35
Q1 2016	270,165	$8,056	$5.32	$4.57 - $6.01
Q4 2015	270,075	$7,027	$5.34	$4.76 - $5.64
Q3 2015	346,716	$8,429	$5.12	$4.82 - $5.50
Q2 2015	408,753	$10,480	$5.12	$4.77 - $5.50
Q1 2015	408,753	$9,818	$4.94	$4.60 - $5.40
Q4 2014	408,665	$10,911	$5.23	$4.74 - $5.57
Q3 2014	1,238,251	$30,932	$5.21	$4.59 - $5.65
Q2 2014	1,238,251	$34,052	$5.47	$5.05 - $6.00
Q1 2014	1,421,072	$42,050	$5.82	$5.47 - $6.18
Q4 2013	1,421,072	$39,762	$5.40	$4.77 - $6.00
Q3 2013	1,280,861	$33,161	$4.79	$4.44 - $5.21
Q2 2013	927,198	$21,798	$5.31	$4.51 - $6.11