American Tower Corp
AMT- Exchange
- NYSE
- Industry
- Real Estate Investment Trusts
- SEC CIK
- 0001053507
In the last 90 days, American Tower Corp insiders filed 1 open-market purchase and 2 sales; 1,757 institutions reported holding it in 13F filings for Q2 2026, worth $72.0B in total; Akre Capital Management is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in American Tower Corp as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 1,760
- +9 vs. Q4 2025
- Shares held
- 431.5M
- +28.6M (+7.1%) vs. Q4 2025
- Total value
- $74.4B
- +$10.2B (+15.9%) vs. Q4 2025
- New holders
- 155
- 725 more added
- Sold out
- 146
- 651 more reduced
30 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AMT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,757 | $72.0B |
| Q1 2026 | 1,760 | $74.4B |
| Q4 2025 | 1,781 | $77.0B |
| Q3 2025 | 1,799 | $82.5B |
| Q2 2025 | 1,851 | $96.5B |
| Q1 2025 | 1,845 | $95.0B |
| Q4 2024 | 1,798 | $79.6B |
| Q3 2024 | 1,852 | $99.4B |
| Q2 2024 | 1,769 | $83.8B |
| Q1 2024 | 1,769 | $85.0B |
| Q4 2023 | 1,802 | $93.6B |
| Q3 2023 | 1,634 | $69.9B |
| Q2 2023 | 1,688 | $82.1B |
| Q1 2023 | 1,706 | $86.3B |
| Q4 2022 | 1,711 | $90.0B |
| Q3 2022 | 1,693 | $91.0B |
| Q2 2022 | 1,747 | $109.0B |
| Q1 2022 | 1,723 | $104.3B |
| Q4 2021 | 1,799 | $121.8B |
| Q3 2021 | 1,678 | $109.6B |
| Q2 2021 | 1,656 | $111.7B |
| Q1 2021 | 1,613 | $95.8B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Cetera Investment Advisers | 243,488 | $42.0M | 0.04% | +61,421+33.7% | Added |
| UniSuper Management Pty Ltd | 244,990 | $42.3M | 0.28% | −67,665−21.6% | Reduced |
| Captrust Financial Advisors | 248,471 | $42.9M | 0.08% | +27,733+12.6% | Added |
| State of Wisconsin Investment Board | 250,695 | $43.3M | 0.10% | +8,120+3.3% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 257,574 | $44.5M | 0.04% | −7,462−2.8% | Reduced |
| Danske Bank A/S | 259,178 | $44.7M | 0.11% | +11,653+4.7% | Added |
| KBC Group NV | 260,181 | $44.9M | 0.11% | +29,631+12.9% | Added |
| Huntington National Bank | 268,211 | $46.3M | 0.26% | +1,564+0.6% | Added |
| APG Asset Management N.V. | 312,408 | $46.8M | 0.15% | +19,616+6.7% | Added |
| Robeco Institutional Asset Management B.V. | 276,833 | $47.8M | 0.07% | +86,642+45.6% | Added |
| Massachusetts Financial Services Co | 262,526 | $48.0M | 0.02% | −813,342−75.6% | Reduced |
| Bessemer Group Inc | 282,676 | $48.8M | 0.08% | +12,363+4.6% | Added |
| Macquarie Group Ltd | 284,825 | $49.1M | 0.29% | −24,697−8.0% | Reduced |
| State of Alaska, Department of Revenue | 285,577 | $49.3M | 0.53% | +7,750+2.8% | Added |
| Davis R M Inc | 289,155 | $49.9M | 0.89% | +4,008+1.4% | Added |
| PFA Pension, Forsikringsaktieselskab | 294,273 | $50.8M | 0.15% | −259−0.1% | Reduced |
| Alyeska Investment Group, L.P. | 303,834 | $52.4M | 0.15% | +303,834 | New |
| Centersquare Investment Management LLC | 316,416 | $54.6M | 0.56% | −37,120−10.5% | Reduced |
| Pacer Advisors, Inc. | 317,687 | $54.8M | 0.16% | −27,111−7.9% | Reduced |
| Partners Group Holding AG | 324,869 | $56.1M | 4.15% | +11,744+3.8% | Added |
| HRT Financial LP | 336,091 | $58.0M | 0.14% | +165,755+97.3% | Added |
| Evercore Wealth Management, LLC | 346,150 | $59.7M | 0.94% | −11,366−3.2% | Reduced |
| Teacher Retirement System of Texas | 347,326 | $59.9M | 0.25% | +81,321+30.6% | Added |
| Jones Financial Companies LLLP | 357,095 | $60.8M | 0.03% | +132,860+59.3% | Added |
| Janney Montgomery Scott LLC | 354,150 | $61.1M | 0.15% | +111,196+45.8% | Added |
| Retirement Systems of Alabama | 360,489 | $62.2M | 0.21% | −724−0.2% | Reduced |
| New York State Teachers Retirement System | 363,543 | $62.7M | 0.13% | 00.0% | Unchanged |
| Fort Washington Investment Advisors Inc | 366,299 | $63.2M | 0.35% | +20,661+6.0% | Added |
| Stifel Financial Corp | 374,033 | $64.6M | 0.06% | +66,861+21.8% | Added |
| Intech Investment Management LLC | 376,931 | $65.1M | 0.64% | +87,365+30.2% | Added |
| Federation des caisses Desjardins du Quebec | 390,156 | $67.3M | 0.24% | +14,813+3.9% | Added |
| Pictet Asset Management Holding SA | 392,261 | $67.7M | 0.07% | −10,437−2.6% | Reduced |
| First Financial Bankshares Inc | 394,575 | $68.1M | 1.38% | +139,334+54.6% | Added |
| Los Angeles Capital Management LLC | 397,482 | $68.6M | 0.27% | +214,870+117.7% | Added |
| Colony Group, LLC | 400,249 | $69.0M | 0.08% | +29,528+8.0% | Added |
| The PNC Financial Services Group, Inc. | 404,541 | $69.8M | 0.04% | +11,946+3.0% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 403,735 | $69.9M | 0.12% | −62,071−13.3% | Reduced |
| TCW Group Inc | 405,473 | $70.0M | 0.53% | +86,190+27.0% | Added |
| Lansforsakringar Fondforvaltning AB (publ) | 407,551 | $70.3M | 0.37% | −964−0.2% | Reduced |
| State Board of Administration of Florida Retirement System | 410,850 | $70.9M | 0.13% | −471−0.1% | Reduced |
| Avenir Corp | 415,352 | $71.7M | 8.74% | −2,360−0.6% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 419,403 | $72.4M | 0.12% | −109,255−20.7% | Reduced |
| Adage Capital Partners GP, L.L.C. | 419,405 | $72.4M | 0.11% | −3,200−0.8% | Reduced |
| National Bank of Canada | 420,119 | $72.5M | 0.07% | −209,513−33.3% | Reduced |
| Balyasny Asset Management LLC | 435,448 | $75.1M | 0.15% | +157,050+56.4% | Added |
| Antipodes Partners Ltd | 436,946 | $75.4M | 1.45% | +29,789+7.3% | Added |
| Douglas Lane & Associates, LLC | 437,647 | $75.5M | 1.09% | +4,953+1.1% | Added |
| Border to Coast Pensions Partnership Ltd | 437,005 | $75.6M | 1.28% | +37,241+9.3% | Added |
| Maryland State Retirement & Pension System | 446,060 | $77.0M | 1.56% | −18,705−4.0% | Reduced |
| Mariner, LLC | 447,765 | $77.3M | 0.09% | −24,972−5.3% | Reduced |
| Great Lakes Advisors, LLC | 449,607 | $77.6M | 0.64% | +18,560+4.3% | Added |
| Vanguard Investments Australia, Ltd. | 469,600 | $81.0M | 0.23% | +469,600 | New |
| Blair William & Co | 470,128 | $81.1M | 0.23% | −208,116−30.7% | Reduced |
| Vontobel Holding Ltd. | 478,684 | $82.6M | 0.28% | −417,612−46.6% | Reduced |
| Bank of Montreal | 479,074 | $82.7M | 0.03% | −80,568−14.4% | Reduced |
| Ensign Peak Advisors, Inc | 485,269 | $83.7M | 0.16% | −221,671−31.4% | Reduced |
| Liontrust Investment Partners LLP | 490,236 | $84.6M | 1.44% | −45,127−8.4% | Reduced |
| Douglass Winthrop Advisors, LLC | 502,932 | $86.8M | 1.59% | −5,953−1.2% | Reduced |
| Prudential Financial Inc | 507,959 | $87.7M | 0.11% | +198,335+64.1% | Added |
| Rathbone Brothers plc | 512,409 | $88.4M | 0.35% | +38,193+8.1% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 513,652 | $88.6M | 0.22% | −27,311−5.0% | Reduced |
| Aviva PLC | 516,445 | $89.1M | 0.15% | +12,072+2.4% | Added |
| New York State Common Retirement Fund | 529,571 | $91.4M | 0.13% | +600+0.1% | Added |
| DekaBank Deutsche Girozentrale | 535,381 | $93.7M | 0.15% | 00.0% | Unchanged |
| CI Private Wealth, LLC | 546,827 | $94.0M | 0.13% | −32,697−5.6% | Reduced |
| AQR Capital Management LLC | 574,106 | $98.4M | 0.05% | −884,387−60.6% | Reduced |
| Milford Funds Ltd | 621,018 | $107.2M | 2.25% | −37,259−5.7% | Reduced |
| Citigroup Inc | 633,831 | $109.4M | 0.07% | +18,522+3.0% | Added |
| Lasalle Investment Management Securities LLC | 648,257 | $111.9M | 4.42% | +120,641+22.9% | Added |
| Alliancebernstein L.P. | 656,026 | $115.2M | 0.04% | +100,984+18.2% | Added |
| California State Teachers Retirement System | 682,040 | $117.7M | 0.12% | −16,680−2.4% | Reduced |
| Acadian Asset Management LLC | 735,606 | $126.9M | 0.18% | +45,344+6.6% | Added |
| Wellington Management Group LLP | 747,735 | $129.0M | 0.02% | +15,848+2.2% | Added |
| Marshall Wace, LLP | 751,254 | $129.7M | 0.14% | +439,843+141.2% | Added |
| Allianz Asset Management GmbH | 760,688 | $131.3M | 0.15% | −186,560−19.7% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 783,649 | $135.2M | 0.16% | −339,967−30.3% | Reduced |
| Voloridge Investment Management, LLC | 791,418 | $136.6M | 0.55% | +224,536+39.6% | Added |
| Storebrand Asset Management AS | 797,602 | $137.7M | 0.40% | −19,245−2.4% | Reduced |
| Vanguard Asset Management, Ltd | 812,950 | $140.3M | 0.12% | +812,950 | New |
| US Bancorp | 816,817 | $141.0M | 0.17% | −60,426−6.9% | Reduced |
| Man Group plc | 826,138 | $142.6M | 0.30% | −294,624−26.3% | Reduced |
| LPL Financial LLC | 849,192 | $146.6M | 0.04% | +314,393+58.8% | Added |
| Standard Life Aberdeen plc | 852,623 | $147.1M | 0.24% | +27,625+3.3% | Added |
| Sarasin & Partners LLP | 863,166 | $149.0M | 1.82% | −37,235−4.1% | Reduced |
| SEI Investments Co | 867,418 | $149.7M | 0.14% | +63,924+8.0% | Added |
| Citadel Advisors LLC | 876,763 | $151.3M | 0.11% | −222,898−20.3% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 918,264 | $158.5M | 0.81% | −53,835−5.5% | Reduced |
| Duff & Phelps Investment Management Co | 920,890 | $158.9M | 1.65% | +3,035+0.3% | Added |
| Russell Investments Group, Ltd. | 937,962 | $161.7M | 0.17% | +210,812+29.0% | Added |
| California Public Employees Retirement System | 938,126 | $161.9M | 0.10% | −268,264−22.2% | Reduced |
| Swedbank AB | 953,557 | $164.6M | 0.17% | +388,823+68.9% | Added |
| Rhumbline Advisers | 995,150 | $171.7M | 0.15% | −9,067−0.9% | Reduced |
| Millennium Management LLC | 1,021,378 | $176.3M | 0.13% | +504,717+97.7% | Added |
| Davenport & Co LLC | 1,026,871 | $176.5M | 0.98% | −25,250−2.4% | Reduced |
| Vanguard Global Advisers, LLC | 1,024,070 | $176.7M | 0.09% | +1,024,070 | New |
| Envestnet Asset Management Inc | 1,033,938 | $178.4M | 0.05% | +507,575+96.4% | Added |
| Great West Life Assurance Co | 1,030,753 | $178.6M | 0.32% | +31,247+3.1% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 1,065,693 | $183.9M | 0.12% | +73,315+7.4% | Added |
| Neuberger Berman Group LLC | 1,068,844 | $184.5M | 0.14% | −417,768−28.1% | Reduced |
| Cbre Clarion Securities LLC | 1,110,227 | $191.6M | 2.84% | +321,307+40.7% | Added |