| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 9.2% | $8,810,195,903 | 43,047,962 | BlackRock, Inc. | 31 Dec 2024 |
As of 30 Sep 2025, 1,770 institutional investors reported holding 428,099,755 shares of AMERICAN TOWER CORP /MA/ - Common Stock (AMT). This represents 91% of the company’s total 467,912,630 outstanding shares.
The largest institutional shareholders of AMERICAN TOWER CORP /MA/ - Common Stock (AMT) together control 61% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 14% | 63,640,168 | +0.97% | 0.18% | $12,239,277,109 |
| BlackRock, Inc. | 9.7% | 45,403,549 | -0.56% | 0.15% | $8,732,010,551 |
| STATE STREET CORP | 4.5% | 20,915,929 | -0.94% | 0.14% | $4,057,279,830 |
| JPMORGAN CHASE & CO | 3.3% | 15,378,588 | +21% | 0.19% | $2,957,610,295 |
| COHEN & STEERS, INC. | 2.9% | 13,501,372 | -2.9% | 4.7% | $2,596,841,000 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.8% | 13,271,674 | +1.3% | 0.16% | $2,542,827,819 |
| FMR LLC | 2.6% | 12,247,533 | -9.9% | 0.12% | $2,355,445,534 |
| MORGAN STANLEY | 2.1% | 10,033,659 | +9.1% | 0.12% | $1,929,673,782 |
| DEUTSCHE BANK AG\ | 1.6% | 7,535,445 | +5.2% | 0.49% | $1,449,216,783 |
| Invesco Ltd. | 1.5% | 6,888,633 | +3.1% | 0.21% | $1,324,821,814 |
| DIMENSIONAL FUND ADVISORS LP | 1.4% | 6,357,842 | -3.5% | 0.26% | $1,222,780,616 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.3% | 6,197,015 | -19% | 0.13% | $1,191,812,000 |
| PRINCIPAL FINANCIAL GROUP INC | 1.3% | 5,980,516 | -1.6% | 0.58% | $1,150,174,088 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.2% | 5,556,814 | -0.12% | 0.17% | $1,068,686,468 |
| NORTHERN TRUST CORP | 1.2% | 5,417,142 | -1.2% | 0.13% | $1,041,824,750 |
| FRANKLIN RESOURCES INC | 1.1% | 5,375,430 | -0.62% | 0.26% | $1,033,802,696 |
| GOLDMAN SACHS GROUP INC | 1.1% | 5,337,885 | +11% | 0.15% | $1,026,582,012 |
| Capital Research Global Investors | 1.1% | 4,924,771 | +0.31% | 0.18% | $947,131,959 |
| Legal & General Group Plc | 0.99% | 4,653,248 | +3.5% | 0.2% | $894,912,653 |
| LAZARD ASSET MANAGEMENT LLC | 0.95% | 4,464,182 | +1985% | 1.2% | $858,551,482 |
| UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC | 0.95% | 4,430,681 | -20% | 0.19% | $852,108,571 |
| Capital World Investors | 0.9% | 4,208,709 | +4.2% | 0.11% | $809,418,915 |
| AMERIPRISE FINANCIAL INC | 0.89% | 4,168,214 | -4.8% | 0.18% | $801,495,176 |
| Nuveen, LLC | 0.87% | 4,078,755 | -5.6% | 0.21% | $784,426,203 |
| BANK OF AMERICA CORP /DE/ | 0.85% | 3,989,239 | -1.6% | 0.06% | $767,210,501 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 9,365,757 | $1,645,225,535 | +$238,144,838 | $175.57 | 255 |
| 2025 Q3 | 428,099,755 | $82,332,528,377 | -$1,986,881,230 | $192.32 | 1,770 |
| 2025 Q2 | 435,907,060 | $96,341,434,941 | +$1,423,833,879 | $221.02 | 1,832 |
| 2025 Q1 | 429,979,201 | $93,537,067,148 | -$224,857,144 | $217.60 | 1,815 |
| 2024 Q4 | 432,153,965 | $79,292,053,983 | +$1,549,209,053 | $183.41 | 1,750 |
| 2024 Q3 | 420,484,834 | $97,632,242,252 | -$2,109,386,111 | $232.56 | 1,820 |
| 2024 Q2 | 430,045,234 | $83,660,640,816 | +$1,376,853,444 | $194.38 | 1,728 |
| 2024 Q1 | 425,251,103 | $83,855,786,180 | -$1,420,928,986 | $197.59 | 1,738 |
| 2023 Q4 | 4,169,780 | $900,162,594 | +$63,046,542 | $215.88 | 23 |
| 2023 Q3 | 418,402,572 | $68,847,450,102 | +$254,749,035 | $164.45 | 1,584 |
| 2023 Q2 | 416,827,219 | $80,887,578,996 | -$978,747,421 | $193.94 | 1,646 |
| 2023 Q1 | 420,458,424 | $85,891,240,306 | -$244,460,898 | $204.34 | 1,660 |
| 2022 Q4 | 422,235,238 | $89,506,444,491 | +$323,829,510 | $211.86 | 1,674 |
| 2022 Q3 | 421,451,337 | $90,502,979,647 | -$545,300,893 | $214.70 | 1,638 |
| 2022 Q2 | 424,466,096 | $108,502,473,604 | +$3,514,524,808 | $255.59 | 1,703 |
| 2022 Q1 | 413,568,429 | $103,856,525,164 | -$486,130,785 | $251.22 | 1,677 |
| 2021 Q4 | 370,185,124 | $108,084,338,092 | +$804,139,671 | $292.50 | 1,756 |
| 2021 Q3 | 411,409,549 | $109,216,699,668 | -$472,499,753 | $265.41 | 1,649 |
| 2021 Q2 | 412,178,647 | $111,345,285,380 | +$3,411,368,708 | $270.14 | 1,625 |
| 2021 Q1 | 399,985,507 | $95,542,669,551 | -$351,992,760 | $239.06 | 1,581 |
| 2020 Q4 | 394,214,108 | $88,426,020,030 | -$566,147,602 | $224.46 | 1,554 |
| 2020 Q3 | 403,858,994 | $97,579,548,489 | -$994,134,761 | $241.73 | 1,493 |
| 2020 Q2 | 406,731,190 | $105,092,942,940 | +$246,984,768 | $258.54 | 1,481 |
| 2020 Q1 | 407,146,024 | $88,732,408,304 | -$254,737,331 | $217.75 | 1,402 |
| 2019 Q4 | 408,315,501 | $93,790,334,585 | -$185,838,728 | $229.82 | 1,361 |
| 2019 Q3 | 408,745,545 | $90,351,011,804 | -$1,007,846,138 | $221.13 | 1,293 |
| 2019 Q2 | 390,099,964 | $79,735,070,118 | +$206,539,860 | $204.45 | 1,258 |
| 2019 Q1 | 419,384,936 | $82,608,753,827 | +$460,449,160 | $197.06 | 1,215 |
| 2018 Q4 | 415,067,202 | $65,653,231,101 | +$558,521,299 | $158.19 | 1,150 |
| 2018 Q3 | 412,416,630 | $59,876,308,062 | +$5,750,341 | $145.30 | 1,071 |
| 2018 Q2 | 412,514,197 | $59,465,165,688 | +$1,307,976,202 | $144.17 | 1,058 |
| 2018 Q1 | 408,549,412 | $59,330,923,729 | +$1,813,065,709 | $145.34 | 1,073 |
| 2017 Q4 | 393,544,387 | $56,110,497,389 | +$250,491,281 | $142.67 | 1,043 |
| 2017 Q3 | 394,233,915 | $53,876,553,415 | -$379,614,325 | $136.68 | 946 |
| 2017 Q2 | 398,071,980 | $52,670,005,925 | +$808,756,048 | $132.32 | 894 |
| 2017 Q1 | 398,078,322 | $48,371,870,801 | +$3,256,268,603 | $121.54 | 884 |
| 2016 Q4 | 396,592,377 | $41,906,309,691 | -$180,611,931 | $105.68 | 856 |
| 2016 Q3 | 397,626,018 | $45,060,387,909 | -$7,794,158 | $113.33 | 793 |
| 2016 Q2 | 398,530,361 | $45,265,363,888 | +$139,707,613 | $113.61 | 805 |
| 2016 Q1 | 396,286,469 | $40,558,391,642 | +$116,005,619 | $102.37 | 734 |
| 2015 Q4 | 401,254,795 | $38,908,545,083 | -$284,232,990 | $96.95 | 743 |
| 2015 Q3 | 400,924,361 | $35,289,195,836 | +$789,242,231 | $87.98 | 704 |
| 2015 Q2 | 387,964,582 | $36,200,385,750 | +$186,678,927 | $93.29 | 698 |
| 2015 Q1 | 397,105,769 | $37,405,350,080 | +$2,289,077,648 | $94.15 | 729 |
| 2014 Q4 | 371,002,263 | $36,683,394,049 | -$139,797,715 | $98.85 | 735 |
| 2014 Q3 | 366,430,615 | $34,310,331,663 | -$147,264,589 | $93.63 | 670 |
| 2014 Q2 | 367,847,116 | $33,101,134,930 | -$290,586,835 | $89.98 | 643 |
| 2014 Q1 | 371,171,288 | $30,388,199,069 | +$120,348,660 | $81.87 | 623 |