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RS Investment Management
> PFPT
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2016 | PROOFPOINT INC | PFPT | 1,418,156 | 619,376 | 89,471,000 | 79,638,000 | $63.09 |
| 03/31/2016 | PROOFPOINT INC | PFPT | 1,410,559 | -128,595 | 75,860,000 | -24,200,000 | $53.78 |
| 12/31/2015 | PROOFPOINT INC | PFPT | 1,539,154 | 740,374 | 100,060,000 | 90,227,000 | $65.01 |
| 09/30/2015 | PROOFPOINT INC | PFPT | 1,906,914 | 369,190 | 115,025,000 | 17,118,000 | $60.32 |
| 06/30/2015 | PROOFPOINT INC | PFPT | 1,537,724 | 350,000 | 97,907,000 | 27,570,000 | $63.67 |
| 03/31/2015 | PROOFPOINT INC | PFPT | 1,187,724 | 388,944 | 70,337,000 | 60,504,000 | $59.22 |
| 12/31/2014 | PROOFPOINT INC | PFPT | 1,099,724 | 184,040 | 53,040,000 | 19,031,000 | $48.23 |
| 09/30/2014 | PROOFPOINT INC | PFPT | 915,684 | 116,904 | 34,009,000 | 24,176,000 | $37.14 |
| 06/30/2014 | PROOFPOINT INC | PFPT | 1,090,184 | 291,404 | 40,838,000 | 31,005,000 | $37.46 |
| 03/31/2014 | PROOFPOINT INC | PFPT | 1,108,985 | 29,300 | 41,121,000 | 5,308,000 | $37.08 |
| 12/31/2013 | PROOFPOINT INC | PFPT | 1,079,685 | 280,905 | 35,813,000 | 25,980,000 | $33.17 |
| 09/30/2013 | PROOFPOINT INC | PFPT | 1,241,885 | 110,790 | 39,889,000 | 12,483,000 | $32.12 |
| 06/30/2013 | PROOFPOINT INC | PFPT | 1,131,095 | 332,315 | 27,406,000 | 17,573,000 | $24.23 |
| 03/31/2013 | PROOFPOINT INC | PFPT | 829,870 | 31,090 | 13,992,000 | 4,159,000 | $16.86 |
| 12/31/2012 | PROOFPOINT INC | PFPT | 798,780 | 112,120 | 9,833,000 | -364,000 | $12.31 |
| 09/30/2012 | PROOFPOINT INC | PFPT | 686,660 | -6,120 | 10,197,000 | -1,546,000 | $14.85 |
| 06/30/2012 | PROOFPOINT INC | PFPT | 692,780 | 692,780 | 11,743,000 | 11,743,000 | $16.95 |
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