AMERICAN TOWER CORP (AMT) Institutional Shareholders
AMERICAN TOWER CORP (AMT) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $68.11B in AMT holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of AMT tracked by InsiderSet, reporting ownership valued at approximately $7.76B in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $7.79B, representing an estimated gain of +0.45% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 47% of the total disclosed AMT value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in AMERICAN TOWER CORP (AMT).
This page ranks the largest institutional AMT shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
1,704
Total Reported Value
$68.11B
Largest Holder
Blackrock, Inc.
Largest Position
$7.76B
Insider Transactions (90d)
5
Latest Filing Quarter
Q2 2026
New Institutional Positions
28
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.14% | 44,954,137 | $7,758,184,902 | $7,793,249,190 | +$35,064,288 | +0.45% | |
| Vanguard Capital Management Llc | 0.13% | 30,362,380 | $5,239,939,541 | $5,263,622,197 | +$23,682,656 | +0.45% | |
| Vanguard Portfolio Management Llc | 0.25% | 27,596,159 | $4,762,545,120 | $4,784,070,124 | +$21,525,004 | +0.45% | |
| State Street Corp | 0.13% | 21,434,609 | $3,699,184,821 | $3,715,903,816 | +$16,718,995 | +0.45% | |
| Geode Capital Management, Llc | 0.15% | 13,933,628 | $2,400,040,632 | $2,415,533,750 | +$15,493,118 | +0.65% | |
| Fmr Llc | 0.10% | 11,317,048 | $1,953,096,205 | $1,961,923,441 | +$8,827,236 | +0.45% | |
| Storebrand Asset Management As | 0.60% | 7,851,675 | $1,779,508,033 | $1,361,166,378 | -$418,341,655 | -23.51% | |
| Morgan Stanley | 0.10% | 9,583,923 | $1,653,994,186 | $1,661,468,891 | +$7,474,705 | +0.45% | |
| Deutsche Bank Ag\ | 0.44% | 7,769,353 | $1,340,834,942 | $1,346,895,036 | +$6,060,094 | +0.45% | |
| Lazard Asset Management Llc | 2.08% | 7,325,943 | $1,264,311,243 | $1,270,025,478 | +$5,714,235 | +0.45% | |
| Invesco Ltd. | 0.19% | 7,275,230 | $1,255,559,118 | $1,261,233,873 | +$5,674,755 | +0.45% | |
| Principal Financial Group Inc | 0.55% | 5,914,591 | $1,020,742,893 | $1,025,353,496 | +$4,610,603 | +0.45% | |
| Dimensional Fund Advisors Lp | 0.21% | 5,811,041 | $1,002,830,074 | $1,007,402,068 | +$4,571,994 | +0.46% | |
| Capital World Investors | 0.13% | 5,667,888 | $978,164,111 | $982,585,064 | +$4,420,953 | +0.45% | |
| Northern Trust Corp | 0.12% | 5,339,734 | $921,531,294 | $925,696,286 | +$4,164,992 | +0.45% | |
| Charles Schwab Investment Management Inc | 0.14% | 5,240,288 | $904,368,903 | $908,456,328 | +$4,087,425 | +0.45% | |
| Legal & General Group Plc | 0.19% | 4,825,921 | $832,857,447 | $836,621,665 | +$3,764,218 | +0.45% | |
| Goldman Sachs Group Inc | 0.11% | 4,697,393 | $810,676,019 | $814,340,050 | +$3,664,031 | +0.45% | |
| Bank Of America Corp | 0.06% | 4,511,662 | $778,622,650 | $782,141,724 | +$3,519,074 | +0.45% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.16% | 4,339,494 | $748,909,873 | $752,294,680 | +$3,384,807 | +0.45% | |
| Arrowstreet Capital, Limited Partnership | 0.39% | 4,195,978 | $724,141,883 | $727,414,746 | +$3,272,863 | +0.45% | |
| Capital Research Global Investors | 0.11% | 4,103,353 | $708,156,661 | $711,357,276 | +$3,200,615 | +0.45% | |
| Nuveen, Llc | 0.18% | 3,889,182 | $671,195,029 | $674,228,592 | +$3,033,563 | +0.45% | |
| Amundi | 0.18% | 3,830,533 | $661,055,728 | $664,061,201 | +$3,005,473 | +0.45% | |
| Clearbridge Investments, Llc | 0.55% | 3,685,476 | $636,039,378 | $638,914,119 | +$2,874,741 | +0.45% | |
| Wells Fargo & Company/Mn | 0.12% | 3,501,851 | $604,349,478 | $607,080,889 | +$2,731,411 | +0.45% | |
| Ubs Group Ag | 0.11% | 3,488,057 | $601,968,877 | $604,689,562 | +$2,720,685 | +0.45% | |
| Franklin Resources Inc | 0.14% | 3,343,526 | $577,025,717 | $579,633,667 | +$2,607,950 | +0.45% | |
| Ameriprise Financial Inc | 0.13% | 3,310,593 | $571,179,712 | $573,924,402 | +$2,744,690 | +0.48% | |
| Bank Of New York Mellon Corp | 0.09% | 2,773,447 | $478,641,527 | $480,804,772 | +$2,163,245 | +0.45% | |
| Federated Hermes, Inc. | 0.77% | 2,756,058 | $475,640,490 | $477,790,215 | +$2,149,725 | +0.45% | |
| Vanguard Fiduciary Trust Co | 0.12% | 2,699,678 | $465,910,429 | $468,016,178 | +$2,105,749 | +0.45% | |
| Canada Pension Plan Investment Board | 0.27% | 2,386,605 | $411,880,291 | $413,741,843 | +$1,861,552 | +0.45% | |
| Manufacturers Life Insurance Company, The | 0.34% | 2,315,919 | $399,681,246 | $401,487,718 | +$1,806,472 | +0.45% | |
| Nordea Investment Management Ab | 0.33% | 2,044,852 | $350,037,765 | $354,495,543 | +$4,457,778 | +1.27% | |
| Fisher Asset Management, Llc | 0.10% | 1,736,413 | $299,670,408 | $301,024,558 | +$1,354,150 | +0.45% | |
| Royal Bank Of Canada | 0.05% | 1,645,003 | $283,893,000 | $285,177,720 | +$1,284,720 | +0.45% | |
| Barrow Hanley Mewhinney & Strauss Llc | 0.90% | 1,585,600 | $273,642,848 | $274,879,616 | +$1,236,768 | +0.45% | |
| Hsbc Holdings Plc | 0.16% | 1,572,977 | $271,299,020 | $272,691,293 | +$1,392,273 | +0.51% | |
| Raymond James Financial Inc | 0.08% | 1,551,441 | $267,747,738 | $268,957,812 | +$1,210,074 | +0.45% | |
| National Pension Service | 0.20% | 1,533,703 | $264,686,464 | $265,882,752 | +$1,196,288 | +0.45% | |
| Magellan Asset Management Ltd | 3.37% | 1,503,296 | $259,438,824 | $260,611,395 | +$1,172,571 | +0.45% | |
| Swiss National Bank | 0.14% | 1,373,900 | $237,107,662 | $238,179,304 | +$1,071,642 | +0.45% | |
| Cibc Bancorp Usa Inc. | 0.32% | 1,358,233 | $234,424,240 | $235,463,273 | +$1,039,033 | +0.44% | |
| American Century Companies Inc | 0.12% | 1,349,347 | $232,870,492 | $233,922,796 | +$1,052,304 | +0.45% | |
| Barclays Plc | 0.08% | 1,255,920 | $216,746,675 | $217,726,291 | +$979,616 | +0.45% | |
| Two Sigma Investments, Lp | 0.18% | 1,226,889 | $211,736,504 | $212,693,477 | +$956,973 | +0.45% | |
| Bnp Paribas Financial Markets | 0.14% | 1,212,291 | $209,217,181 | $210,162,768 | +$945,587 | +0.45% | |
| Point72 Asset Management, L.P. | 0.36% | 1,205,312 | $208,012,745 | $208,952,888 | +$940,143 | +0.45% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.27% | 1,166,809 | $201,367,897 | $202,278,008 | +$910,111 | +0.45% |
Frequently asked questions about AMT
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Who owns the most AMT stock?
The largest holders of AMT are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for AMERICAN TOWER CORP (AMT).
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Is AMT widely held by superinvestors?
Many widely followed stocks like AMT appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly AMT is represented among the institutional managers we track.
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What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.