TETRA TECH INC

CUSIP: 88162g103 Class: COM

TOCQUEVILLE ASSET MANAGEMENT L.P.'s Holding History (CIK: 0000883961)

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

Q3 2014
Shares 26,500 Value ($000) $662 Avg Close — Range —
Q2 2014
Shares 1,500 Value ($000) $41 Avg Close — Range —
Q1 2014
Shares 1,500 Value ($000) $44 Avg Close — Range —
Q4 2013
Shares 24,329 Value ($000) $681 Avg Close — Range —
Q3 2013
Shares 116,550 Value ($000) $3,017 Avg Close — Range —
Q2 2013
Shares 197,250 Value ($000) $4,637 Avg Close — Range —