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Stephens Investment Management, LLC
> ERII
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 09/30/2009 | Energy Recovery, Inc. | ERII | 29,823 | -30,000 | 174,000 | -250,000 | $5.83 |
| 06/30/2009 | Energy Recovery, Inc. | ERII | 59,823 | -208,835 | 424,000 | -1,618,000 | $7.09 |
| 03/31/2009 | Energy Recovery, Inc. | ERII | 268,658 | -459,761 | 2,042,000 | -3,479,000 | $7.60 |
| 12/31/2008 | Energy Recovery, Inc. | ERII | 728,419 | 318,010 | 5,521,000 | 1,585,000 | $7.58 |
| 09/30/2008 | Energy Recovery, Inc. | ERII | 410,409 | 410,409 | 3,936,000 | 3,936,000 | $9.59 |
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