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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.

Institutional holdersQ1 2026: 1,760 institutions
Q1 2021: 1,613 institutionsQ2 2021: 1,656 institutionsQ3 2021: 1,678 institutionsQ4 2021: 1,799 institutionsQ1 2022: 1,723 institutionsQ2 2022: 1,747 institutionsQ3 2022: 1,693 institutionsQ4 2022: 1,711 institutionsQ1 2023: 1,706 institutionsQ2 2023: 1,688 institutionsQ3 2023: 1,634 institutionsQ4 2023: 1,802 institutionsQ1 2024: 1,769 institutionsQ2 2024: 1,769 institutionsQ3 2024: 1,852 institutionsQ4 2024: 1,798 institutionsQ1 2025: 1,845 institutionsQ2 2025: 1,852 institutionsQ3 2025: 1,799 institutionsQ4 2025: 1,781 institutionsQ1 2026: 1,760 institutionsQ2 2026: 1,757 institutions
Value heldQ1 2026: $74.4B
Q1 2021: $95.8BQ2 2021: $111.7BQ3 2021: $109.6BQ4 2021: $121.8BQ1 2022: $104.3BQ2 2022: $109.0BQ3 2022: $91.0BQ4 2022: $90.0BQ1 2023: $86.3BQ2 2023: $82.1BQ3 2023: $69.9BQ4 2023: $93.6BQ1 2024: $85.0BQ2 2024: $83.8BQ3 2024: $99.4BQ4 2024: $79.6BQ1 2025: $95.0BQ2 2025: $96.5BQ3 2025: $82.5BQ4 2025: $77.0BQ1 2026: $74.4BQ2 2026: $72.0B
Institutions holding AMT and their total value by quarter
QuarterHoldersValue
Q2 20261,757$72.0B
Q1 20261,760$74.4B
Q4 20251,781$77.0B
Q3 20251,799$82.5B
Q2 20251,852$96.5B
Q1 20251,845$95.0B
Q4 20241,798$79.6B
Q3 20241,852$99.4B
Q2 20241,769$83.8B
Q1 20241,769$85.0B
Q4 20231,802$93.6B
Q3 20231,634$69.9B
Q2 20231,688$82.1B
Q1 20231,706$86.3B
Q4 20221,711$90.0B
Q3 20221,693$91.0B
Q2 20221,747$109.0B
Q1 20221,723$104.3B
Q4 20211,799$121.8B
Q3 20211,678$109.6B
Q2 20211,656$111.7B
Q1 20211,613$95.8B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q4 2025.

Institutions holding AMT in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Edge Wealth Management LLC58,842$10.2M1.74%−1,615−2.7%Reduced
Kempen Capital Management N.V.59,161$10.2M0.09%−724−1.2%Reduced
Cabot Wealth Management Inc59,285$10.2M1.18%+7,898+15.4%Added
Public Employees Retirement Association of Colorado60,086$10.4M0.04%−170.0%Reduced
Defiance ETFs, LLC60,382$10.4M0.15%+12,174+25.3%Added
Cohen Klingenstein LLC60,914$10.5M0.34%00.0%Unchanged
Sanctuary Advisors, LLC60,932$10.5M0.06%+11,418+23.1%Added
Miller Howard Investments Inc61,337$10.6M0.29%+11,243+22.4%Added
Janus Henderson Group PLC61,462$10.6M0.01%−143,618−70.0%Reduced
Penserra Capital Management LLC61,494$10.6M0.12%+10,699+21.1%Added
Allstate Corp61,727$10.7M0.11%+12,423+25.2%Added
Stephens Inc61,956$10.7M0.13%+638+1.0%Added
Knights of Columbus Asset Advisors LLC62,597$10.8M0.61%00.0%Unchanged
Fuller & Thaler Asset Management, Inc.63,094$10.9M0.04%+2,409+4.0%Added
Jane Street Group, LLC63,102$10.9M0.01%−291,434−82.2%Reduced
John G Ullman & Associates Inc63,259$10.9M1.45%+2,041+3.3%Added
Allworth Financial LP64,172$11.1M0.05%+312+0.5%Added
Washington Trust Co64,288$11.1M0.37%−290.0%Reduced
Davis Selected Advisers64,620$11.2M0.05%+650+1.0%Added
LGT Fund Management Co Ltd.64,986$11.2M0.49%+50,834+359.2%Added
Univest Financial Corp65,143$11.2M0.63%+20,585+46.2%Added
River Road Asset Management, LLC65,284$11.3M0.13%−3,950−5.7%Reduced
Yousif Capital Management, LLC65,670$11.3M0.13%−1,106−1.7%Reduced
Cullen/Frost Bankers, Inc.66,422$11.5M0.13%+3,818+6.1%Added
La Banque Postale Asset Management SA68,003$11.7M0.16%−36,395−34.9%Reduced
Ofi Invest Asset Management77,360$11.8M0.16%−57,820−42.8%Reduced
AIA Group Ltd68,285$11.8M0.17%+5,074+8.0%Added
Wallington Asset Management, LLC68,560$11.8M1.57%−2,583−3.6%Reduced
Rakuten Investment Management, Inc.69,478$11.8M0.02%+7,889+12.8%Added
Vantage Investment Partners, LLC69,147$11.9M0.82%−91−0.1%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd69,150$11.9M0.10%+3,219+4.9%Added
New York Life Investment Management LLC69,604$12.0M0.10%+1,612+2.4%Added
CBOE Vest Financial, LLC70,123$12.1M0.15%+7,304+11.6%Added
Hudson Bay Capital Management LP70,420$12.2M0.07%+70,420New
Integrated Wealth Concepts LLC71,176$12.3M0.10%+22,225+45.4%Added
LGT Group Foundation71,389$12.3M0.15%−4,596−6.0%Reduced
Capital Analysts, LLC71,886$12.4M0.33%+3,292+4.8%Added
Police & Firemen's Retirement System of New Jersey71,989$12.4M0.11%+164+0.2%Added
First Horizon Corp72,836$12.6M0.53%+8,732+13.6%Added
Epoch Investment Partners, Inc.72,850$12.6M0.08%+9,079+14.2%Added
Evergreen Capital Management LLC72,866$12.6M0.27%+2,173+3.1%Added
TD Waterhouse Canada Inc.74,533$12.7M0.04%+8,859+13.5%Added
Heitman Real Estate Securities LLC75,189$13.0M0.93%+7,850+11.7%Added
Resona Asset Management Co.,Ltd.76,340$13.1M0.07%+547+0.7%Added
Utah Retirement Systems76,050$13.1M0.13%−5,486−6.7%Reduced
Impax Asset Management Group plc76,226$13.2M0.09%−47,551−38.4%Reduced
Barton Investment Management78,433$13.5M1.70%−775−1.0%Reduced
Vinva Investment Management Ltd79,608$13.6M0.17%−10,125−11.3%Reduced
Pinebridge Investments LLC79,212$13.7M0.12%−96,981−55.0%Reduced
EP Wealth Advisors, LLC80,953$14.0M0.07%−205,158−71.7%Reduced
Fideuram - Intesa Sanpaolo Private Banking S.P.A.81,826$14.1M0.50%+621+0.8%Added
Prudential PLC82,150$14.2M0.11%−19,815−19.4%Reduced
Rockbridge Capital Management LLC83,010$14.3M9.66%−5,370−6.1%Reduced
Scotia Capital Inc.83,043$14.3M0.06%+1,949+2.4%Added
Entropy Technologies, LP83,659$14.4M0.67%−437−0.5%Reduced
Aptus Capital Advisors, LLC83,803$14.5M0.12%+5,546+7.1%Added
BWCP, LP84,923$14.7M2.24%+26,079+44.3%Added
Motley Fool Asset Management LLC85,697$14.8M0.64%−8,002−8.5%Reduced
USS Investment Management Ltd86,402$14.9M0.06%+1,843+2.2%Added
Pinnacle Financial Partners, Inc.86,460$14.9M0.11%−851−1.0%Reduced
Pathstone Holdings, LLC86,982$15.0M0.06%−1,628−1.8%Reduced
Carnegie Capital Asset Management, LLC87,256$15.1M0.29%−29,349−25.2%Reduced
Stock Yards Bank & Trust Co88,541$15.3M0.48%−4,695−5.0%Reduced
Ci Investments Inc.88,755$15.3M0.07%+5,271+6.3%Added
Mar Vista Investment Partners LLC89,283$15.4M1.54%+1,510+1.7%Added
NZS Capital, LLC91,839$15.8M0.53%−529,738−85.2%Reduced
Howland Capital Management LLC92,103$15.9M0.63%−67,639−42.3%Reduced
O'Shaughnessy Asset Management, LLC92,489$16.0M0.08%+14,936+19.3%Added
GW Henssler & Associates Ltd93,931$16.2M0.76%+12,195+14.9%Added
Foresight Group Ltd Liability Partnership96,189$16.4M2.89%−27,825−22.4%Reduced
Anchor Capital Advisors LLC95,310$16.4M0.47%+32,103+50.8%Added
Chilton Capital Management LLC96,267$16.6M0.58%+11,989+14.2%Added
PBU - The Pension Fund of Early Childhood & Youth Educators96,505$16.7M0.25%––
IES Holdings, Inc.97,500$16.8M7.86%+97,500New
Reaves W H & Co Inc98,037$16.9M0.28%00.0%Unchanged
Amalgamated Bank98,633$17.0M0.13%−3,841−3.7%Reduced
J. Safra Sarasin Holding AG100,445$17.3M0.30%+7,982+8.6%Added
United Capital Financial Advisers, LLC100,725$17.4M0.11%−4,488−4.3%Reduced
Mediolanum International Funds Ltd102,330$17.4M0.19%+102,330New
Varma Mutual Pension Insurance Co101,906$17.6M0.10%00.0%Unchanged
DnB Asset Management AS101,972$17.6M0.06%−18,368−15.3%Reduced
MAI Capital Management101,998$17.6M0.10%−875−0.9%Reduced
Thrivent Financial for Lutherans103,263$17.8M0.03%+1,205+1.2%Added
Mirae Asset Global Investments Co., Ltd.104,396$18.0M0.05%−1,419−1.3%Reduced
Rockefeller Capital Management L.P.104,482$18.0M0.03%−6,444−5.8%Reduced
Tudor Investment Corp Et Al105,078$18.1M0.10%+55,578+112.3%Added
Commonwealth Equity Services, LLC105,519$18.2M0.03%−5,487−4.9%Reduced
Broad Run Investment Management, LLC105,578$18.2M3.21%−4,297−3.9%Reduced
Edgar Lomax Co106,530$18.4M1.31%+85,990+418.6%Added
Cerity Partners LLC106,738$18.4M0.03%−47,466−30.8%Reduced
SEB Asset Management AB107,340$18.5M0.08%+107,340New
Advisors Asset Management, Inc.107,630$18.6M0.31%−6,195−5.4%Reduced
Wealthfront Advisers LLC109,012$18.8M0.04%+11,051+11.3%Added
Greenleaf Trust110,518$19.1M0.19%−3,031−2.7%Reduced
Nissay Asset Management Corp111,606$19.3M0.10%+4,613+4.3%Added
Squarepoint Ops LLC112,969$19.5M0.04%−159,027−58.5%Reduced
Swiss Life Asset Management Ltd113,124$19.5M0.10%+11,131+10.9%Added
Destination Wealth Management113,264$19.5M0.51%+15,199+15.5%Added
Cincinnati Insurance Co114,000$19.7M0.30%+54,000+90.0%Added
Gabelli Funds LLC114,390$19.7M0.13%+6,350+5.9%Added