AMT Institutional Ownership & Shareholders
AMERICAN TOWER CORP (AMT) is currently held by 1,744 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $73.87B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of AMT tracked by InsiderSet, reporting ownership valued at approximately $7.49B in its June 30, 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 $8.60B, representing an estimated gain of +14.80% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 45% 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
1,744
Total Reported Value
$73.87B
Largest Holder
Blackrock, Inc.
Largest Position
$7.49B
Insider Transactions (90d)
5
Latest Filing Quarter
Q2 2026
New Institutional Positions
39
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.11% | 45,796,561 | $7,490,943,486 | $8,599,678,225 | +$1,108,734,739 | +14.80% | |
| Vanguard Capital Management Llc | 0.11% | 30,437,771 | $4,978,706,203 | $5,715,604,638 | +$736,898,435 | +14.80% | |
| Vanguard Portfolio Management Llc | 0.21% | 27,851,812 | $4,555,720,889 | $5,230,013,257 | +$674,292,368 | +14.80% | |
| State Street Corp | 0.11% | 22,066,202 | $3,647,491,340 | $4,143,591,412 | +$496,100,072 | +13.60% | |
| Banque Cantonale Vaudoise | 0.44% | 19,506 | $3,191,000,000 | $3,662,837 | -$3,187,337,163 | -99.89% | |
| Geode Capital Management, Llc | 0.12% | 13,838,970 | $2,259,182,138 | $2,598,681,787 | +$339,499,649 | +15.03% | |
| Cohen & Steers, Inc. | 3.56% | 13,777,789 | $2,253,635,000 | $2,587,193,218 | +$333,558,218 | +14.80% | |
| Fmr Llc | 0.08% | 11,376,427 | $1,860,842,140 | $2,136,265,462 | +$275,423,322 | +14.80% | |
| Morgan Stanley | 0.08% | 9,610,971 | $1,572,066,723 | $1,804,748,134 | +$232,681,411 | +14.80% | |
| Jpmorgan Chase & Co | 0.09% | 8,853,450 | $1,493,311,624 | $1,662,500,841 | +$169,189,217 | +11.33% | |
| Lazard Asset Management Llc | 2.08% | 8,403,123 | $1,374,498,829 | $1,577,938,437 | +$203,439,608 | +14.80% | |
| Invesco Ltd. | 0.09% | 7,068,996 | $1,156,275,619 | $1,327,416,069 | +$171,140,450 | +14.80% | |
| Deutsche Bank Ag\ | 0.32% | 6,701,631 | $1,096,185,783 | $1,258,432,269 | +$162,246,486 | +14.80% | |
| Capital World Investors | 0.13% | 6,554,891 | $1,072,183,521 | $1,230,877,432 | +$158,693,911 | +14.80% | |
| Norges Bank | 0.10% | 6,366,685 | $1,041,398,665 | $1,195,536,109 | +$154,137,444 | +14.80% | |
| Dimensional Fund Advisors Lp | 0.17% | 5,875,655 | $961,164,610 | $1,103,330,496 | +$142,165,886 | +14.79% | |
| Principal Financial Group Inc | 0.48% | 5,690,220 | $931,430,796 | $1,068,509,512 | +$137,078,716 | +14.72% | |
| Charles Schwab Investment Management Inc | 0.12% | 5,607,388 | $917,200,456 | $1,052,955,319 | +$135,754,863 | +14.80% | |
| Northern Trust Corp | 0.10% | 5,023,525 | $821,697,984 | $943,317,525 | +$121,619,541 | +14.80% | |
| Goldman Sachs Group Inc | 0.09% | 4,958,386 | $811,043,109 | $931,085,723 | +$120,042,614 | +14.80% | |
| Legal & General Group Plc | 0.17% | 4,853,850 | $793,944,247 | $911,455,953 | +$117,511,706 | +14.80% | |
| Arrowstreet Capital, Limited Partnership | 0.33% | 4,603,218 | $752,948,368 | $864,392,276 | +$111,443,908 | +14.80% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.16% | 4,339,494 | $748,909,873 | $814,870,183 | +$65,960,310 | +8.81% | |
| Price T Rowe Associates Inc | 0.07% | 4,211,298 | $688,843,000 | $790,797,538 | +$101,954,538 | +14.80% | |
| Bank Of America Corp | 0.04% | 3,905,537 | $638,828,739 | $733,381,738 | +$94,552,999 | +14.80% | |
| Clearbridge Investments, Llc | 0.51% | 3,742,617 | $612,179,857 | $702,788,620 | +$90,608,763 | +14.80% | |
| Wells Fargo & Company/Mn | 0.10% | 3,420,232 | $559,447,314 | $642,251,165 | +$82,803,851 | +14.80% | |
| Ubs Group Ag | 0.08% | 3,253,371 | $532,153,895 | $610,918,006 | +$78,764,111 | +14.80% | |
| Bank Of New York Mellon Corp | 0.08% | 3,056,891 | $500,015,627 | $574,022,992 | +$74,007,365 | +14.80% | |
| Ameriprise Financial Inc | 0.10% | 3,005,811 | $491,748,994 | $564,431,190 | +$72,682,196 | +14.78% | |
| Capital Research Global Investors | 0.07% | 2,922,539 | $478,039,704 | $548,794,373 | +$70,754,669 | +14.80% | |
| Vanguard Fiduciary Trust Co | 0.10% | 2,655,895 | $434,424,745 | $498,723,963 | +$64,299,218 | +14.80% | |
| Nuveen, Llc | 0.10% | 2,631,606 | $430,451,772 | $494,162,975 | +$63,711,203 | +14.80% | |
| Federated Hermes, Inc. | 0.61% | 2,608,858 | $426,730,904 | $489,891,355 | +$63,160,451 | +14.80% | |
| Aqr Capital Management Llc | 0.14% | 2,460,401 | $402,447,774 | $462,014,100 | +$59,566,326 | +14.80% | |
| Millennium Management Llc | 0.24% | 2,190,378 | $358,280,129 | $411,309,181 | +$53,029,052 | +14.80% | |
| Nordea Investment Management Ab | 0.29% | 2,170,273 | $354,752,825 | $407,533,864 | +$52,781,039 | +14.88% | |
| Royal Bank Of Canada | 0.06% | 2,130,554 | $348,496,000 | $400,075,430 | +$51,579,430 | +14.80% | |
| Barrow Hanley Mewhinney & Strauss Llc | 1.02% | 2,057,200 | $336,496,204 | $386,301,016 | +$49,804,812 | +14.80% | |
| Manufacturers Life Insurance Company, The | 0.24% | 1,872,067 | $306,214,065 | $351,536,741 | +$45,322,676 | +14.80% | |
| Hsbc Holdings Plc | 0.14% | 1,821,488 | $298,797,422 | $342,039,017 | +$43,241,595 | +14.47% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.35% | 1,790,526 | $292,876,338 | $336,224,972 | +$43,348,634 | +14.80% | |
| Ontario Teachers Pension Plan Board | 1.85% | 1,784,357 | $291,867,274 | $335,066,557 | +$43,199,283 | +14.80% | |
| Canada Pension Plan Investment Board | 0.16% | 1,781,306 | $291,368,222 | $334,493,641 | +$43,125,419 | +14.80% | |
| Neuberger Berman Group Llc | 0.19% | 1,486,612 | $261,004,517 | $279,156,001 | +$18,151,484 | +6.95% | |
| Raymond James Financial Inc | 0.07% | 1,582,804 | $258,899,259 | $297,218,935 | +$38,319,676 | +14.80% | |
| National Pension Service | 0.16% | 1,551,870 | $253,839,376 | $291,410,149 | +$37,570,773 | +14.80% | |
| Jane Street Group, Llc | 0.16% | 1,524,990 | $249,442,614 | $286,362,622 | +$36,920,008 | +14.80% | |
| Cbre Investment Management Listed Real Assets Llc | 3.32% | 1,458,711 | $238,601,358 | $273,916,752 | +$35,315,394 | +14.80% | |
| Magellan Asset Management Ltd | 5.14% | 1,406,263 | $230,022,439 | $264,068,066 | +$34,045,627 | +14.80% |
Frequently asked questions about AMT
-
Who are the largest institutional holders of AMT?
The largest institutional holders of AMT reported in the latest SEC Form 13F filings include Blackrock, Inc. , Vanguard Capital Management Llc , Vanguard Portfolio Management Llc , State Street Corp , and Banque Cantonale Vaudoise . InsiderSet ranks institutional holders by their latest reported AMT position.
-
What is AMT institutional ownership?
This page tracks AMT positions reported by institutional investment managers through SEC Form 13F. AMERICAN TOWER CORP (AMT) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
-
How many institutions own AMT?
InsiderSet currently tracks 1,744 institutional managers reporting AMT holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of AMT shareholders.
-
How much AMT stock do institutions own?
Institutional investment managers disclosed approximately $73.87B in AMT holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
-
When was AMT institutional ownership last updated?
The latest AMT institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
-
Are institutional AMT holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its AMT position after the reporting date.
-
Are institutions buying or selling AMT?
Institutional buying and selling can be analyzed by comparing AMT positions across consecutive 13F reporting periods. InsiderSet's AMT Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View AMT ownership changes.
-
How has AMT institutional ownership changed over time?
InsiderSet tracks AMT institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.