TETRA TECH INC NEW

Ticker: TTEK CUSIP: 88162G103 Class: EQTY

MASON STREET ADVISORS, LLC's Holding History (CIK: 0001167711)

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

Q4 2020

Shares 28,721 Value ($000) $3,325 Avg Close $22.53 Range $19.06 - $25.44

Q3 2020

Shares 28,842 Value ($000) $2,754 Avg Close $17.77 Range $14.99 - $19.31

Q2 2020

Shares 29,606 Value ($000) $2,342 Avg Close $15.19 Range $12.93 - $17.00

Q1 2020

Shares 29,035 Value ($000) $2,050 Avg Close $17.03 Range $12.72 - $19.87

Q4 2019

Shares 29,035 Value ($000) $2,502 Avg Close $17.32 Range $16.24 - $18.07

Q3 2019

Shares 28,659 Value ($000) $2,486 Avg Close $16.34 Range $14.60 - $17.46

Q2 2019

Shares 18,314 Value ($000) $1,439 Avg Close $13.48 Range $11.77 - $15.78

Q1 2019

Shares 17,732 Value ($000) $1,057 Avg Close $11.21 Range $9.70 - $12.25

Q4 2018

Shares 17,191 Value ($000) $890 Avg Close $12.40 Range $9.76 - $14.51

Q3 2018

Shares 16,396 Value ($000) $1,120 Avg Close $13.24 Range $11.60 - $14.44

Q2 2018

Shares 16,060 Value ($000) $940 Avg Close $10.68 Range $9.26 - $11.77

Q1 2018

Shares 15,494 Value ($000) $758 Avg Close $9.88 Range $8.93 - $10.68

Q4 2017

Shares 14,493 Value ($000) $698 Avg Close $9.70 Range $9.21 - $10.18

Q3 2017

Shares 14,322 Value ($000) $667 Avg Close $8.79 Range $7.99 - $9.67

Q2 2017

Shares 14,095 Value ($000) $645 Avg Close $8.91 Range $7.98 - $9.55

Q1 2017

Shares 13,403 Value ($000) $548 Avg Close $8.29 Range $7.77 - $8.97

Q4 2016

Shares 12,469 Value ($000) $538 Avg Close $8.08 Range $6.96 - $8.86

Q2 2016

Shares 11,325 Value ($000) $348 Avg Close $5.98 Range $5.60 - $6.35

Q1 2016

Shares 10,421 Value ($000) $311 Avg Close $5.32 Range $4.57 - $6.01

Q4 2015

Shares 9,514 Value ($000) $248 Avg Close $5.34 Range $4.76 - $5.64

Q3 2015

Shares 8,870 Value ($000) $216 Avg Close $5.12 Range $4.82 - $5.50

Q2 2015

Shares 8,324 Value ($000) $213 Avg Close $5.12 Range $4.77 - $5.50

Q1 2015

Shares 8,187 Value ($000) $197 Avg Close $4.94 Range $4.60 - $5.40

Q4 2014

Shares 8,054 Value ($000) $215 Avg Close $5.23 Range $4.74 - $5.57

Q3 2014

Shares 8,017 Value ($000) $200 Avg Close $5.21 Range $4.59 - $5.65

Q2 2014

Shares 8,165 Value ($000) $225 Avg Close $5.47 Range $5.05 - $6.00

Q1 2014

Shares 7,931 Value ($000) $235 Avg Close $5.82 Range $5.47 - $6.18

Q4 2013

Shares 10,206 Value ($000) $286 Avg Close $5.40 Range $4.77 - $6.00

Q3 2013

Shares 9,482 Value ($000) $245 Avg Close $4.79 Range $4.44 - $5.21

Q2 2013

Shares 8,996 Value ($000) $211 Avg Close $5.31 Range $4.51 - $6.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	28,721	$3,325	$22.53	$19.06 - $25.44
Q3 2020	28,842	$2,754	$17.77	$14.99 - $19.31
Q2 2020	29,606	$2,342	$15.19	$12.93 - $17.00
Q1 2020	29,035	$2,050	$17.03	$12.72 - $19.87
Q4 2019	29,035	$2,502	$17.32	$16.24 - $18.07
Q3 2019	28,659	$2,486	$16.34	$14.60 - $17.46
Q2 2019	18,314	$1,439	$13.48	$11.77 - $15.78
Q1 2019	17,732	$1,057	$11.21	$9.70 - $12.25
Q4 2018	17,191	$890	$12.40	$9.76 - $14.51
Q3 2018	16,396	$1,120	$13.24	$11.60 - $14.44
Q2 2018	16,060	$940	$10.68	$9.26 - $11.77
Q1 2018	15,494	$758	$9.88	$8.93 - $10.68
Q4 2017	14,493	$698	$9.70	$9.21 - $10.18
Q3 2017	14,322	$667	$8.79	$7.99 - $9.67
Q2 2017	14,095	$645	$8.91	$7.98 - $9.55
Q1 2017	13,403	$548	$8.29	$7.77 - $8.97
Q4 2016	12,469	$538	$8.08	$6.96 - $8.86
Q2 2016	11,325	$348	$5.98	$5.60 - $6.35
Q1 2016	10,421	$311	$5.32	$4.57 - $6.01
Q4 2015	9,514	$248	$5.34	$4.76 - $5.64
Q3 2015	8,870	$216	$5.12	$4.82 - $5.50
Q2 2015	8,324	$213	$5.12	$4.77 - $5.50
Q1 2015	8,187	$197	$4.94	$4.60 - $5.40
Q4 2014	8,054	$215	$5.23	$4.74 - $5.57
Q3 2014	8,017	$200	$5.21	$4.59 - $5.65
Q2 2014	8,165	$225	$5.47	$5.05 - $6.00
Q1 2014	7,931	$235	$5.82	$5.47 - $6.18
Q4 2013	10,206	$286	$5.40	$4.77 - $6.00
Q3 2013	9,482	$245	$4.79	$4.44 - $5.21
Q2 2013	8,996	$211	$5.31	$4.51 - $6.11