| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 9.2% | $9,096,034,371 | 43,047,962 | BlackRock, Inc. | 31 Dec 2024 |
As of 30 Sep 2025, 1,771 institutional investors reported holding 428,116,633 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 | 12,663,133 | $2,221,052,287 | -$133,295,548 | $175.57 | 336 |
| 2025 Q3 | 428,116,633 | $82,335,803,135 | -$1,985,569,936 | $192.32 | 1,771 |
| 2025 Q2 | 435,907,060 | $96,341,434,941 | +$1,423,833,794 | $221.02 | 1,832 |
| 2025 Q1 | 430,404,456 | $93,629,539,451 | -$214,621,650 | $217.60 | 1,823 |
| 2024 Q4 | 432,768,798 | $79,401,083,638 | +$428,265,411 | $183.41 | 1,771 |
| 2024 Q3 | 427,108,097 | $99,172,125,930 | -$659,221,767 | $232.56 | 1,829 |
| 2024 Q2 | 429,616,906 | $83,577,769,576 | +$359,568,447 | $194.38 | 1,744 |
| 2024 Q1 | 429,941,519 | $84,782,909,321 | -$164,160,149 | $197.59 | 1,746 |
| 2023 Q4 | 432,666,078 | $93,371,462,540 | +$1,754,551,095 | $215.88 | 1,772 |
| 2023 Q3 | 423,952,716 | $69,760,172,128 | +$186,388,855 | $164.45 | 1,611 |
| 2023 Q2 | 422,387,585 | $81,966,033,281 | -$52,944,852 | $193.94 | 1,670 |
| 2023 Q1 | 421,907,885 | $86,187,376,054 | -$522,563,920 | $204.34 | 1,684 |
| 2022 Q4 | 424,314,059 | $89,946,923,520 | -$9,265,376 | $211.86 | 1,696 |
| 2022 Q3 | 423,749,608 | $90,997,283,803 | -$384,616,602 | $214.70 | 1,662 |
| 2022 Q2 | 425,396,270 | $108,745,537,457 | +$3,304,481,753 | $255.59 | 1,727 |
| 2022 Q1 | 414,904,336 | $104,197,106,158 | -$422,099,763 | $251.22 | 1,703 |
| 2021 Q4 | 416,441,412 | $121,613,766,733 | +$952,167,635 | $292.50 | 1,773 |
| 2021 Q3 | 412,201,127 | $109,428,346,230 | -$464,958,209 | $265.41 | 1,663 |
| 2021 Q2 | 412,905,993 | $111,543,815,769 | +$3,412,669,013 | $270.14 | 1,637 |
| 2021 Q1 | 400,701,540 | $95,714,148,639 | -$304,022,013 | $239.06 | 1,596 |
| 2020 Q4 | 402,309,717 | $90,240,784,755 | -$306,413,086 | $224.46 | 1,571 |
| 2020 Q3 | 404,008,957 | $97,618,570,098 | -$1,029,759,380 | $241.73 | 1,505 |
| 2020 Q2 | 406,803,128 | $105,112,112,438 | +$191,523,047 | $258.54 | 1,491 |
| 2020 Q1 | 407,406,706 | $88,789,381,681 | -$249,409,975 | $217.75 | 1,416 |
| 2019 Q4 | 408,390,124 | $93,807,459,285 | -$173,429,325 | $229.82 | 1,372 |
| 2019 Q3 | 408,794,935 | $90,361,925,409 | -$1,010,112,747 | $221.13 | 1,301 |
| 2019 Q2 | 412,237,826 | $84,261,130,991 | -$775,558,880 | $204.45 | 1,269 |
| 2019 Q1 | 420,054,579 | $82,740,701,825 | +$701,957,909 | $197.06 | 1,226 |
| 2018 Q4 | 416,076,254 | $65,812,845,646 | +$522,087,106 | $158.19 | 1,163 |
| 2018 Q3 | 414,078,134 | $60,118,816,278 | -$5,921,470 | $145.30 | 1,080 |
| 2018 Q2 | 414,544,215 | $59,758,290,176 | +$761,288,932 | $144.17 | 1,068 |
| 2018 Q1 | 409,199,787 | $59,425,583,423 | +$1,818,318,588 | $145.34 | 1,081 |
| 2017 Q4 | 396,663,173 | $56,555,461,414 | +$280,190,847 | $142.67 | 1,055 |
| 2017 Q3 | 394,336,677 | $53,891,565,198 | -$308,808,763 | $136.68 | 954 |
| 2017 Q2 | 398,147,306 | $52,680,033,683 | +$837,206,112 | $132.32 | 902 |
| 2017 Q1 | 398,096,631 | $48,374,152,188 | +$3,267,198,263 | $121.54 | 889 |
| 2016 Q4 | 396,709,861 | $41,923,196,958 | -$310,086,395 | $105.68 | 861 |
| 2016 Q3 | 401,141,922 | $45,458,841,881 | -$154,182,691 | $113.33 | 797 |
| 2016 Q2 | 402,479,659 | $45,714,039,525 | +$39,196,444 | $113.61 | 808 |
| 2016 Q1 | 401,196,881 | $41,061,068,642 | +$33,884,107 | $102.37 | 739 |
| 2015 Q4 | 401,369,251 | $38,927,577,083 | -$279,317,721 | $96.95 | 745 |
| 2015 Q3 | 400,963,900 | $35,292,671,836 | +$619,697,160 | $87.98 | 707 |
| 2015 Q2 | 396,452,458 | $36,992,040,750 | +$346,309,749 | $93.29 | 703 |
| 2015 Q1 | 397,194,920 | $37,413,742,447 | +$2,288,498,747 | $94.15 | 732 |
| 2014 Q4 | 371,014,447 | $36,684,576,049 | -$90,586,051 | $98.85 | 736 |
| 2014 Q3 | 366,430,771 | $34,310,346,663 | -$147,262,987 | $93.63 | 671 |
| 2014 Q2 | 367,851,727 | $33,101,549,930 | -$300,542,451 | $89.98 | 645 |
| 2014 Q1 | 371,929,577 | $30,450,279,069 | +$179,839,410 | $81.87 | 626 |