ENERGY RECOVERY INC

Ticker: ERII CUSIP: 29270J100 Class: Common Stock

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

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

Q2 2015
Shares 10,000 Value ($000) $27 Avg Close $2.93 Range $2.28 - $3.71
Q1 2015
Shares 10,000 Value ($000) $26 Avg Close $3.44 Range $2.49 - $5.37
Q4 2014
Shares 10,000 Value ($000) $53 Avg Close $4.54 Range $3.30 - $5.42
Q3 2014
Shares 10,000 Value ($000) $35 Avg Close $4.37 Range $3.54 - $5.15
Q2 2014
Shares 7,000 Value ($000) $34 Avg Close $5.16 Range $4.10 - $6.18
Q1 2014
Shares 3,000 Value ($000) $16 Avg Close $4.92 Range $3.82 - $6.98