News + Filings Holdings
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Calamos Advisors LLC
> ARST
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2010 | ArcSight Inc | ARST | 1,179,888 | 0 | 26,418,000 | -6,796,000 | $22.39 |
| 03/31/2010 | ArcSight Inc | ARST | 1,179,888 | 375,000 | 33,214,000 | 12,625,000 | $28.15 |
| 12/31/2009 | ArcSight Inc | ARST | 804,888 | 581,422 | 20,589,000 | 15,210,000 | $25.58 |
| 09/30/2009 | ArcSight Inc | ARST | 223,466 | 223,466 | 5,379,000 | 5,379,000 | $24.07 |
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