| 21.33 Real-Time Quote |  0.00 / 0.00%Today’s Change | 15.90 Today|||52-Week Range 22.16 | +17.65% Year-to-Date |
| Other institutional | 40.46% |
| Mutual fund holders | 39.51% |
| Individual stakeholders | 36.40% |
| 3/31/2013 | PUTNAM INVESTMENT MANAGEMENT LLC Bought 2.4 Million shares of Calpine Corp |
| 3/31/2013 | THE VANGUARD GROUP, INC. Bought 2.4 Million shares of Calpine Corp |
| 3/31/2013 | TWO SIGMA INVESTMENTS LLC Bought 1.8 Million shares of Calpine Corp |
| Stockholder | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| SPO Partners & Co. | 9.46% | 43,081,560 | 936,162,299 | -12,701,948 | -22.77% |
| T. Rowe Price Associates, Inc. | 8.50% | 38,702,000 | 840,994,460 | -217,030 | -0.56% |
| RS Investment Management Co. LLC | 5.79% | 26,358,960 | 572,780,201 | -3,424,263 | -11.50% |
| The Vanguard Group, Inc. | 3.93% | 17,911,624 | 389,219,590 | +2,384,190 | +15.35% |
| Jennison Associates LLC | 3.02% | 13,756,006 | 298,918,010 | -1,565,469 | -10.22% |
| BlackRock Fund Advisors | 2.66% | 12,092,917 | 262,779,086 | -132,602 | -1.08% |
| TIAA-CREF Asset Management LLC | 2.38% | 10,863,102 | 236,055,206 | -1,376,666 | -11.25% |
| Global Thematic Partners LLC | 2.37% | 10,778,073 | 234,207,526 | -941,296 | -8.03% |
| MFS Investment Management, Inc. | 2.18% | 9,911,214 | 215,370,680 | -995,820 | -9.13% |
| Fidelity Management & Research Co... | 2.10% | 9,551,083 | 207,545,034 | -1,549,839 | -13.96% |
| Mutual fund | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| T Rowe Price Mid Cap Growth Fund | 3.13% | 14,250,000 | 309,652,500 | -144,700 | -1.01% |
| RS Global Natural Resources Fund | 2.21% | 10,062,245 | 218,652,584 | +69,200 | +0.69% |
| Oakmark Select Fund | 1.56% | 7,104,413 | 154,378,894 | +20 | +0.00% |
| CREF Stock Account | 1.29% | 5,871,827 | 127,594,801 | -297,852 | -4.83% |
| T Rowe Price Mid Cap Value Fund | 1.20% | 5,472,800 | 118,923,944 | -78,900 | -1.42% |
| MFS Utilities Fund | 1.16% | 5,266,815 | 114,447,890 | -352,900 | -6.28% |
| RS Partners Fund | 1.11% | 5,053,477 | 109,812,055 | -207,500 | -3.94% |
| Prudential Jennison Utility Fund | 1.03% | 4,683,235 | 101,766,697 | 0 | 0.00% |
| Government Pension Fund - Global ... | 0.97% | 4,417,231 | 95,986,430 | -1,169,989 | -20.94% |
| T Rowe Price New Era Fund | 0.90% | 4,105,200 | 89,205,996 | -72,100 | -1.73% |
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