| 84.45 Data as of May 17 |  +1.24 / +1.49%Today’s Change | 62.54 Today|||52-Week Range 85.15 | +9.29% Year-to-Date |
| Mutual fund holders | 49.20% |
| Other institutional | 46.71% |
| Individual stakeholders | 0.09% |
| 3/31/2013 | BLACKROCK ADVISORS LLC Bought 1.2 Million shares of American Tower Corp |
| 3/31/2013 | MFS INVESTMENT MANAGEMENT, INC. Bought 1.1 Million shares of American Tower Corp |
| 3/31/2013 | BLACKROCK INVESTMENT MANAGEMENT ... Bought 720.6 Thousand shares of American Tower Corp |
| Stockholder | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| T. Rowe Price Associates, Inc. | 7.30% | 28,887,163 | 2,426,232,820 | -166,515 | -0.57% |
| Fidelity Management & Research Co... | 6.07% | 24,029,774 | 2,018,260,718 | +643,048 | +2.75% |
| BlackRock Fund Advisors | 4.92% | 19,471,272 | 1,635,392,135 | +464,913 | +2.45% |
| The Vanguard Group, Inc. | 4.54% | 17,957,680 | 1,508,265,543 | +488,037 | +2.79% |
| SSgA Funds Management, Inc. | 4.13% | 16,344,787 | 1,372,798,660 | +44,861 | +0.28% |
| Jennison Associates LLC | 3.14% | 12,436,666 | 1,044,555,577 | -1,450,250 | -10.44% |
| Capital Research & Management Co.... | 3.08% | 12,181,238 | 1,023,102,180 | -1,150,000 | -8.63% |
| Goldman Sachs Asset Management LP | 2.45% | 9,704,463 | 815,077,847 | -5,189 | -0.05% |
| MFS Investment Management, Inc. | 2.00% | 7,898,687 | 663,410,721 | +1,051,047 | +15.35% |
| TIAA-CREF Asset Management LLC | 1.99% | 7,865,269 | 660,603,943 | +341,681 | +4.54% |
| Mutual fund | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| T Rowe Price Growth Stock Fund | 2.25% | 8,907,341 | 748,127,571 | -53,300 | -0.59% |
| Fidelity Contrafund | 2.01% | 7,935,479 | 666,500,881 | -354,821 | -4.28% |
| Vanguard Total Stock Market Index... | 1.34% | 5,286,146 | 443,983,403 | +236,970 | +4.69% |
| T Rowe Price Blue Chip Growth Fun... | 1.19% | 4,719,000 | 396,348,810 | +16,600 | +0.35% |
| Vanguard 500 Index Fund | 0.93% | 3,671,202 | 308,344,256 | +42,954 | +1.18% |
| Vanguard Institutional Index Fund | 0.92% | 3,622,490 | 304,252,935 | +50,226 | +1.41% |
| American Funds Growth Fund of Ame... | 0.91% | 3,615,000 | 303,623,850 | 0 | 0.00% |
| SPDR S&P 500 ETF | 0.91% | 3,597,247 | 302,132,776 | -83,096 | -2.26% |
| iShares Dow Jones US Real Estate ... | 0.90% | 3,553,166 | 298,430,412 | -240,275 | -6.33% |
| American Funds American Balanced ... | 0.85% | 3,350,000 | 281,366,500 | 0 | 0.00% |
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