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Bluefin Investment Management LLC
> OSIS
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2013 | OSI SYSTEMS INC | OSIS | 0 | -89,500 | 0 | -5,575,000 | |
| 03/31/2013 | OSI SYSTEMS INC | OSIS | 89,500 | -5,100 | 5,575,000 | -483,000 | $62.29 |
| 12/31/2012 | OSI SYSTEMS INC | OSIS | 94,600 | 15,500 | 6,058,000 | -99,000 | $64.04 |
| 09/30/2012 | OSI SYSTEMS INC | OSIS | 79,100 | 1,300 | 6,157,000 | 1,229,000 | $77.84 |
| 06/30/2012 | OSI SYSTEMS INC | OSIS | 77,800 | 77,800 | 4,928,000 | 4,928,000 | $63.34 |
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