SailingStone Capital Partners LLC
| Bought at price 5.13 per share. | Direct | 2,822,050 | 07 Dec 2016 | 550,000 |
SailingStone Capital Partners LLC
| Sold at price 4.87 per share. | Direct | 290,068 | 02 Dec 2016 | 59,550 |
SailingStone Capital Partners LLC
| Bought at price 4.68 per share. | Direct | 212,811 | 01 Dec 2016 | 45,492 |
SailingStone Capital Partners LLC
| Sold at price 4.74 per share. | Direct | 1,297,027 | 01 Dec 2016 | 273,750 |
SailingStone Capital Partners LLC
| Sold at price 4.40 per share. | Direct | 112,566 | 21 Nov 2016 | 25,560 |
SailingStone Capital Partners LLC
| Sold at price 4.67 per share. | Direct | 1,187,175 | 16 Nov 2016 | 254,050 |
SailingStone Capital Partners LLC
| Bought at price 4.33 per share. | Direct | 199,103 | 02 Nov 2016 | 45,940 |
SailingStone Capital Partners LLC
| Sold at price 4.38 per share. | Direct | 1,852,080 | 26 Oct 2016 | 422,560 |
SailingStone Capital Partners LLC
| Bought at price 4.18 per share. | Direct | 279,675 | 17 Oct 2016 | 66,940 |
SailingStone Capital Partners LLC
| Sold at price 4.86 per share. | Direct | 2,435,540 | 23 Sept 2016 | 501,140 |
SailingStone Capital Partners LLC
| Bought at price 4.82 per share. | Direct | 153,966 | 02 Sept 2016 | 31,930 |
SailingStone Capital Partners LLC
| Sold at price 4.78 per share. | Direct | 220,984 | 02 Sept 2016 | 46,260 |
SailingStone Capital Partners LLC
| Bought at price 4.82 per share. | Direct | 1,353,617 | 01 Sept 2016 | 280,950 |
SailingStone Capital Partners LLC
| Sold at price 4.94 per share. | Direct | 33,005 | 29 Aug 2016 | 6,680 |
SailingStone Capital Partners LLC
| Sold at price 5.73 per share. | Direct | 212,663 | 19 Aug 2016 | 37,140 |
SailingStone Capital Partners LLC
| Sold at price 5.33 per share. | Direct | 3,973,147 | 11 Aug 2016 | 746,131 |
SailingStone Capital Partners LLC
| Sold at price 5.31 per share. | Direct | 10,413,581 | 10 Aug 2016 | 1,962,235 |
SailingStone Capital Partners LLC
| Sold at price 5.30 per share. | Direct | 3,521,459 | 09 Aug 2016 | 664,301 |
SailingStone Capital Partners LLC
| Sold at price 5.32 per share. | Direct | 2,259,725 | 08 Aug 2016 | 425,000 |
SailingStone Capital Partners LLC
| Sold at price 5.30 per share. | Direct | 2,540,575 | 02 Aug 2016 | 479,716 |
SailingStone Capital Partners LLC
| Sold at price 5.41 per share. | Direct | 632,793 | 01 Aug 2016 | 116,989 |
SailingStone Capital Partners LLC
| Sold at price 5.29 per share. | Direct | 1,667,609 | 29 Jul 2016 | 315,000 |
SailingStone Capital Partners LLC
| Sold at price 3.72 per share. | Direct | 342,463 | 10 Dec 2015 | 92,060 |
Macquarie Investment Management Global Ltd.
| Increase at price 3.97 per share. | Direct | 2,739,039 | 07 Dec 2015 | 689,240 |
Macquarie Investment Management Global Ltd.
| Increase at price 3.90 per share. | Direct | 976,163 | 04 Dec 2015 | 250,042 |
Goldman Sachs Financial Markets Pty, Ltd.
| Bought at price 3.98 per share. | Direct | 14,035 | 04 Dec 2015 | 3,522 |
Goldman Sachs Financial Markets Pty, Ltd.
| Sold at price 3.94 per share. | Direct | 16,177 | 04 Dec 2015 | 4,105 |
Dimensional Fund Advisors, L.P.
| | Direct | | 04 Dec 2015 | 11,592 |
Schroders Plc
| Bought at price 3.94 per share. | Direct | 212,534 | 04 Dec 2015 | 53,929 |
Goldman Sachs & Company, Inc.
| | Direct | | 04 Dec 2015 | 0 |
Goldman Sachs Financial Markets Pty, Ltd.
| Sold at price 4.12 per share. | Direct | 26,036 | 03 Dec 2015 | 6,315 |
Macquarie Investment Management Global Ltd.
| Increase at price 4.09 per share. | Direct | 301,747 | 03 Dec 2015 | 73,831 |
Vanguard Group Inc.
| Bought at price 4.21 per share. | Direct | 4,455 | 03 Dec 2015 | 1,058 |
MFS Investment Management
| Bought at price 4.14 per share. | Direct | 7,025 | 03 Dec 2015 | 1,695 |
SailingStone Capital Partners LLC
| Sold at price 4.14 per share. | Direct | 2,140,370 | 03 Dec 2015 | 516,374 |
State Street Global Advisors
| Sold at price 4.12 per share. | Direct | 26,198 | 03 Dec 2015 | 6,365 |
State Street Global Advisors
| Sold at price 4.24 per share. | Direct | 4,437 | 02 Dec 2015 | 1,047 |
Vanguard Group Inc.
| Bought at price 4.26 per share. | Direct | 21,939 | 02 Dec 2015 | 5,150 |
Goldman Sachs Financial Markets Pty, Ltd.
| Bought at price 4.22 per share. | Direct | 19,362 | 02 Dec 2015 | 4,585 |
Goldman Sachs & Company, Inc.
| | Direct | | 02 Dec 2015 | 0 |
Macquarie Investment Management Global Ltd.
| Increase at price 4.24 per share. | Direct | 29,860 | 02 Dec 2015 | 7,046 |
SailingStone Capital Partners LLC
| Bought at price 4.23 per share. | Direct | 68,753 | 02 Dec 2015 | 16,250 |
SailingStone Capital Partners LLC
| Sold at price 4.23 per share. | Direct | 120,245 | 02 Dec 2015 | 28,420 |
SailingStone Capital Partners LLC
| Bought at price 4.25 per share. | Direct | 1,620,518 | 01 Dec 2015 | 380,940 |
Goldman Sachs & Company, Inc.
| Bought at price 4.24 per share. | Direct | 231,228 | 01 Dec 2015 | 54,548 |
Goldman Sachs & Company, Inc.
| Sold at price 4.24 per share. | Direct | 231,228 | 01 Dec 2015 | 54,548 |
Vanguard Group Inc.
| Bought at price 4.21 per share. | Direct | 41,434 | 01 Dec 2015 | 9,842 |
State Street Global Advisors
| Sold at price 4.25 per share. | Direct | 10,474 | 01 Dec 2015 | 2,467 |
Goldman Sachs Financial Markets Pty, Ltd.
| Sold at price 4.25 per share. | Direct | 51,240 | 01 Dec 2015 | 12,068 |
Macquarie Investment Management Global Ltd.
| Increase at price 4.25 per share. | Direct | 60,458 | 01 Dec 2015 | 14,239 |
MFS Investment Management
| Bought at price 4.25 per share. | Direct | 174,737 | 01 Dec 2015 | 41,076 |
MFS Investment Management
| Bought at price 4.16 per share. | Direct | 42,580 | 30 Nov 2015 | 10,248 |
State Street Global Advisors
| Increase at price 4.16 per share. | Direct | 39,909 | 30 Nov 2015 | 9,589 |
Nesna LLP
| Sold at price 4.16 per share. | Direct | 5,584 | 30 Nov 2015 | 1,344 |
Norges Bank Investment Management (NBIM)
| Bought at price 4.16 per share. | Direct | 329,255 | 30 Nov 2015 | 79,110 |
Vanguard Group Inc.
| Bought at price 4.15 per share. | Direct | 655,591 | 30 Nov 2015 | 158,050 |
Vanguard Group Inc.
| Sold at price 4.16 per share. | Direct | 48,576 | 30 Nov 2015 | 11,691 |
Macquarie Investment Management Global Ltd.
| Increase at price 4.16 per share. | Direct | 807,353 | 30 Nov 2015 | 194,309 |
M&G Investment Management, Ltd.
| Bought at price 4.16 per share. | Direct | 808,801 | 30 Nov 2015 | 194,330 |
Norges Bank Investment Management (NBIM)
| Bought at price 4.35 per share. | Direct | 344,207 | 27 Nov 2015 | 79,110 |
Schroders Plc
| Bought at price 4.35 per share. | Direct | 752,344 | 27 Nov 2015 | 172,913 |
Macquarie Investment Management Global Ltd.
| Decrease at price 4.38 per share. | Direct | 143,344 | 27 Nov 2015 | 32,727 |
Vanguard Group Inc.
| Bought at price 4.32 per share. | Direct | 76,302 | 27 Nov 2015 | 17,683 |
Goldman Sachs Financial Markets Pty, Ltd.
| Bought at price 4.36 per share. | Direct | 108,900 | 26 Nov 2015 | 25,000 |
MFS Investment Management
| Bought at price 4.36 per share. | Direct | 3,115 | 26 Nov 2015 | 714 |
Macquarie Investment Management Global Ltd.
| Decrease at price 4.37 per share. | Direct | 198,500 | 26 Nov 2015 | 45,413 |
Norges Bank Investment Management (NBIM)
| Bought at price 4.36 per share. | Direct | 339,454 | 26 Nov 2015 | 77,928 |
SailingStone Capital Partners LLC
| Bought at price 4.36 per share. | Direct | 405,191 | 26 Nov 2015 | 92,870 |
SailingStone Capital Partners LLC
| Sold at price 4.36 per share. | Direct | 2,247,950 | 25 Nov 2015 | 515,940 |
Nesna LLP
| Sold at price 4.34 per share. | Direct | 9,717 | 25 Nov 2015 | 2,238 |
Goldman Sachs Financial Markets Pty, Ltd.
| | Direct | | 25 Nov 2015 | 61,497 |
Vanguard Group Inc.
| Bought at price 4.34 per share. | Direct | 7,381 | 25 Nov 2015 | 1,700 |
Goldman Sachs & Company, Inc.
| Bought at price 4.35 per share. | Direct | 3,914 | 25 Nov 2015 | 900 |
Goldman Sachs & Company, Inc.
| Sold at price 4.35 per share. | Direct | 3,914 | 25 Nov 2015 | 900 |
Goldman Sachs & Company, Inc.
| Bought at price 4.17 per share. | Direct | 12,620 | 25 Nov 2015 | 3,028 |
Goldman Sachs & Company, Inc.
| Sold at price 4.17 per share. | Direct | 12,620 | 25 Nov 2015 | 3,028 |
Macquarie Investment Management Global Ltd.
| Decrease at price 4.34 per share. | Direct | 886,753 | 25 Nov 2015 | 204,227 |
Macquarie Investment Management Global Ltd.
| Decrease at price 4.34 per share. | Direct | 225,622 | 24 Nov 2015 | 51,927 |
Vanguard Group Inc.
| Bought at price 4.32 per share. | Direct | 11,023 | 24 Nov 2015 | 2,550 |
SailingStone Capital Partners LLC
| Sold at price 4.42 per share. | Direct | 2,279,934 | 24 Nov 2015 | 515,356 |
State Street Global Advisors
| Bought at price 4.32 per share. | Direct | 78,860 | 24 Nov 2015 | 18,242 |
Goldman Sachs & Company, Inc.
| Bought at price 4.32 per share. | Direct | 3,838 | 24 Nov 2015 | 888 |
Goldman Sachs & Company, Inc.
| Sold at price 4.32 per share. | Direct | 3,838 | 24 Nov 2015 | 888 |
MFS Investment Management
| Sold at price 4.51 per share. | Direct | 1,718 | 24 Nov 2015 | 381 |
MFS Investment Management
| Bought at price 4.61 per share. | Direct | 214,240 | 23 Nov 2015 | 46,463 |
MFS Investment Management
| Sold at price 4.54 per share. | Direct | 4,053 | 23 Nov 2015 | 893 |
SailingStone Capital Partners LLC
| Bought at price 4.60 per share. | Direct | 729,181 | 23 Nov 2015 | 158,380 |
Schroders Plc
| Bought at price 4.60 per share. | Direct | 59,948 | 23 Nov 2015 | 13,021 |
Macquarie Investment Management Global Ltd.
| | Direct | | 23 Nov 2015 | 0 |
Goldman Sachs Financial Markets Pty, Ltd.
| Increase at price 4.60 per share. | Direct | 193,822 | 23 Nov 2015 | 42,172 |
M&G Investment Management, Ltd.
| Sold at price 4.60 per share. | Direct | 588,971 | 23 Nov 2015 | 127,926 |
State Street Global Advisors
| Bought at price 4.60 per share. | Direct | 81,882 | 23 Nov 2015 | 17,785 |
State Street Global Advisors
| Bought at price 4.57 per share. | Direct | 41,220 | 20 Nov 2015 | 9,012 |
State Street Global Advisors
| Sold at price 4.57 per share. | Direct | 14,430 | 20 Nov 2015 | 3,155 |
Macquarie Investment Management Global Ltd.
| | Direct | | 20 Nov 2015 | 0 |
MFS Investment Management
| Sold at price 4.57 per share. | Direct | 21,282 | 20 Nov 2015 | 4,660 |
M&G Investment Management, Ltd.
| Sold at price 4.58 per share. | Direct | 1,561,724 | 20 Nov 2015 | 340,839 |
Goldman Sachs Financial Markets Pty, Ltd.
| Bought at price 4.48 per share. | Direct | 333,804 | 20 Nov 2015 | 74,510 |
Goldman Sachs Financial Markets Pty, Ltd.
| | Direct | | 20 Nov 2015 | 19,152 |
Macquarie Investment Management Global Ltd.
| Increase at price 4.40 per share. | Direct | 453,406 | 19 Nov 2015 | 103,000 |
State Street Global Advisors
| Bought at price 4.45 per share. | Direct | 47,930 | 19 Nov 2015 | 10,766 |
Schroders Plc
| Bought at price 4.45 per share. | Direct | 29,432 | 19 Nov 2015 | 6,611 |
Schroders Plc
| Sold at price 4.45 per share. | Direct | 35,193 | 19 Nov 2015 | 7,905 |
Vanguard Group Inc.
| Bought at price 4.38 per share. | Direct | 275,940 | 19 Nov 2015 | 63,000 |
Goldman Sachs & Company, Inc.
| Bought at price 4.36 per share. | Direct | 5,059 | 19 Nov 2015 | 1,161 |
Goldman Sachs & Company, Inc.
| Sold at price 4.36 per share. | Direct | 5,059 | 19 Nov 2015 | 1,161 |
Goldman Sachs & Company, Inc.
| | Direct | | 18 Nov 2015 | 0 |
Nesna LLP
| Bought at price 4.25 per share. | Direct | 27,399 | 18 Nov 2015 | 6,444 |
Macquarie Investment Management Global Ltd.
| Increase at price 4.25 per share. | Direct | 484,060 | 18 Nov 2015 | 113,843 |
Goldman Sachs Financial Markets Pty, Ltd.
| Bought at price 4.25 per share. | Direct | 59,528 | 18 Nov 2015 | 14,000 |
Goldman Sachs Financial Markets Pty, Ltd.
| Sold at price 4.25 per share. | Direct | 369,315 | 18 Nov 2015 | 87,000 |
State Street Global Advisors
| Bought at price 4.25 per share. | Direct | 39,237 | 18 Nov 2015 | 9,228 |
State Street Global Advisors
| Sold at price 4.25 per share. | Direct | 142,922 | 18 Nov 2015 | 33,613 |
Vanguard Group Inc.
| Bought at price 4.31 per share. | Direct | 269,527 | 18 Nov 2015 | 62,550 |
Goldman Sachs Financial Markets Pty, Ltd.
| Bought at price 4.33 per share. | Direct | 82,909 | 17 Nov 2015 | 19,152 |
Goldman Sachs & Company, Inc.
| | Direct | | 17 Nov 2015 | 0 |
Macquarie Investment Management Global Ltd.
| Increase at price 4.27 per share. | Direct | 974,243 | 17 Nov 2015 | 228,000 |
State Street Global Advisors
| Bought at price 4.33 per share. | Direct | 10,346 | 17 Nov 2015 | 2,390 |
Dimensional Fund Advisors, L.P.
| Bought at price 4.26 per share. | Direct | 29,682 | 17 Nov 2015 | 6,971 |
MFS Investment Management
| Sold at price 4.31 per share. | Direct | 4,454 | 17 Nov 2015 | 1,034 |
MFS Investment Management
| Sold at price 4.22 per share. | Direct | 2,216 | 16 Nov 2015 | 525 |
Goldman Sachs & Company, Inc.
| Bought at price 4.21 per share. | Direct | 848,829 | 16 Nov 2015 | 201,766 |
Goldman Sachs & Company, Inc.
| Sold at price 4.21 per share. | Direct | 848,829 | 16 Nov 2015 | 201,766 |
Vanguard Group Inc.
| Increase at price 4.22 per share. | Direct | 10,763 | 16 Nov 2015 | 2,550 |
Macquarie Investment Management Global Ltd.
| Decrease at price 4.22 per share. | Direct | 2,471,792 | 16 Nov 2015 | 585,594 |
State Street Global Advisors
| Decrease at price 4.21 per share. | Direct | 52,953 | 16 Nov 2015 | 12,566 |
State Street Global Advisors
| Bought at price 4.27 per share. | Direct | 158,523 | 13 Nov 2015 | 37,125 |
MFS Investment Management
| Bought at price 4.20 per share. | Direct | 19,172 | 13 Nov 2015 | 4,566 |
MFS Investment Management
| Sold at price 4.24 per share. | Direct | 606 | 13 Nov 2015 | 143 |
Schroders Plc
| Increase at price 4.26 per share. | Direct | 1,129,537 | 13 Nov 2015 | 264,963 |
Macquarie Investment Management Global Ltd.
| Increase at price 4.27 per share. | Direct | 2,461,462 | 13 Nov 2015 | 576,455 |
Macquarie Investment Management Global Ltd.
| Increase at price 4.35 per share. | Direct | 715,603 | 12 Nov 2015 | 164,658 |
MFS Investment Management
| Bought at price 4.29 per share. | Direct | 2,654 | 12 Nov 2015 | 619 |
MFS Investment Management
| Sold at price 4.31 per share. | Direct | 37,751 | 12 Nov 2015 | 8,757 |
State Street Global Advisors
| Bought at price 4.35 per share. | Direct | 1,703 | 12 Nov 2015 | 392 |
State Street Global Advisors
| Sold at price 4.35 per share. | Direct | 22,742 | 12 Nov 2015 | 5,233 |
Goldman Sachs & Company, Inc.
| Bought at price 4.35 per share. | Direct | 1,703 | 12 Nov 2015 | 392 |
Goldman Sachs & Company, Inc.
| Sold at price 4.35 per share. | Direct | 1,703 | 12 Nov 2015 | 392 |
Fidelity Management & Research
| Sold at price 4.33 per share. | Direct | 1,724 | 12 Nov 2015 | 398 |
Dimensional Fund Advisors, L.P.
| Bought at price 4.36 per share. | Direct | 47,458 | 11 Nov 2015 | 10,880 |
State Street Global Advisors
| Sold at price 4.36 per share. | Direct | 213,245 | 11 Nov 2015 | 48,887 |
MFS Investment Management
| Sold at price 4.37 per share. | Direct | 16,925 | 11 Nov 2015 | 3,874 |
Macquarie Investment Management Global Ltd.
| | Direct | | 11 Nov 2015 | 0 |
M&G Investment Management, Ltd.
| Sold at price 4.47 per share. | Direct | 29,278 | 11 Nov 2015 | 6,553 |
Goldman Sachs & Company, Inc.
| Bought at price 4.35 per share. | Direct | 61,293 | 11 Nov 2015 | 14,097 |
Goldman Sachs & Company, Inc.
| Sold at price 4.35 per share. | Direct | 61,293 | 11 Nov 2015 | 14,097 |
Macquarie Investment Management Global Ltd.
| Increase at price 4.45 per share. | Direct | 280,287 | 10 Nov 2015 | 63,000 |
State Street Global Advisors
| Bought at price 4.42 per share. | Direct | 40,770 | 10 Nov 2015 | 9,222 |
State Street Global Advisors
| Sold at price 4.42 per share. | Direct | 21,702 | 10 Nov 2015 | 4,909 |
Dimensional Fund Advisors, L.P.
| Bought at price 4.34 per share. | Direct | 93,665 | 10 Nov 2015 | 21,562 |