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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, Q3 2025

Institutional positions in American Tower Corp as of Sep 30, 2025. 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
1,799
−23 vs. Q2 2025
Shares held
429.3M
−647.6K (−0.2%) vs. Q2 2025
Total value
$82.5B
−$12.4B (−13.1%) vs. Q2 2025
New holders
132
648 more added
Sold out
155
751 more reduced

29 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2025: 1,799 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: 1,851 institutionsQ3 2025: 1,799 institutionsQ4 2025: 1,781 institutionsQ1 2026: 1,760 institutionsQ2 2026: 1,757 institutions
Value heldQ3 2025: $82.5B
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 20251,851$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, Q3 2025

Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q2 2025.

Institutions holding AMT in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Haverford Trust Co184,468$35.5M0.32%+1,221+0.7%Added
CIBC Bancorp USA Inc.185,280$35.6M0.22%+185,280New
HighTower Advisors, LLC185,449$35.7M0.04%+2,933+1.6%Added
Public Employees Retirement System of Ohio186,855$35.9M0.11%−3,934−2.1%Reduced
Forsta Ap-Fonden188,800$36.3M0.22%+49,800+35.8%Added
Perpetual Ltd189,586$36.5M0.45%+179,780+1,833.4%Added
Pinebridge Investments, L.P.190,464$36.6M0.27%+45,567+31.4%Added
Cetera Investment Advisers194,199$37.3M0.04%+88,797+84.2%Added
Voya Investment Management LLC196,359$37.8M0.04%−582,257−74.8%Reduced
Howland Capital Management LLC195,448$37.9M1.44%+441+0.2%Added
ASR Vermogensbeheer N.V.200,805$38.6M0.47%+4,851+2.5%Added
T. Rowe Price Investment Management, Inc.201,613$38.8M0.02%−475,102−70.2%Reduced
Cincinnati Financial Corp201,619$38.8M0.77%00.0%Unchanged
Epoch Investment Partners, Inc.202,767$39.0M0.21%−67,886−25.1%Reduced
Asset Management One Co.,Ltd.203,860$39.2M0.11%+3,800+1.9%Added
Robeco Institutional Asset Management B.V.206,920$39.8M0.06%−11,266−5.2%Reduced
RWC Asset Management LLP207,454$39.9M1.93%−15,515−7.0%Reduced
M&T Bank Corp207,878$40.0M0.13%−68,673−24.8%Reduced
Fairview Capital Investment Management, LLC208,849$40.2M2.04%−4,130−1.9%Reduced
Handelsbanken Fonder AB209,239$40.2M0.13%−500−0.2%Reduced
State of New Jersey Common Pension Fund D209,986$40.4M0.15%+4,973+2.4%Added
Treasurer of the State of North Carolina210,316$40.4M0.12%−8,195−3.8%Reduced
First Manhattan Co208,822$40.5M0.11%−12,046−5.5%Reduced
Natixis211,832$40.7M0.22%+211,832New
Two Sigma Advisers, LP212,500$40.9M0.08%+212,500New
Jones Financial Companies LLLP211,742$41.0M0.03%+14,507+7.4%Added
Natixis Advisors, L.P.215,468$41.4M0.06%−83,770−28.0%Reduced
KBC Group NV217,650$41.9M0.10%+30,898+16.5%Added
Danske Bank A/S221,763$42.6M0.11%+460+0.2%Added
King Luther Capital Management Corp224,130$43.1M0.18%−3,602−1.6%Reduced
Ceredex Value Advisors LLC224,197$43.1M1.00%+43,628+24.2%Added
Jain Global LLC225,431$43.4M0.56%−285,313−55.9%Reduced
Factory Mutual Insurance Co227,700$43.8M0.43%00.0%Unchanged
Allspring Global Investments Holdings, LLC228,679$44.2M0.07%+920.0%Added
Zurcher Kantonalbank (Zurich Cantonalbank)235,668$45.3M0.10%+5,643+2.5%Added
Credit Agricole S A236,665$45.5M0.15%+236,665New
Alpha Cubed Investments, LLC237,591$45.7M1.59%+21,284+9.8%Added
Chevy Chase Trust Holdings, Inc.239,513$46.1M0.13%−8,423−3.4%Reduced
Royal London Asset Management Ltd241,025$46.4M0.10%−38,002−13.6%Reduced
Fisher Funds Management LTD241,562$46.5M1.23%−51,239−17.5%Reduced
Quadrature Capital Ltd244,268$47.0M0.56%+231,129+1,759.1%Added
Uniplan Investment Counsel, Inc.251,400$48.3M4.74%+1,539+0.6%Added
State of Wisconsin Investment Board251,789$48.4M0.11%−4,734−1.8%Reduced
Bartlett & Co. Wealth Management LLC249,906$48.5M0.64%−15,721−5.9%Reduced
CIBC World Markets Inc.252,467$48.6M0.10%+36,090+16.7%Added
Janney Montgomery Scott LLC252,591$48.6M0.12%+1,962+0.8%Added
Janus Henderson Group PLC256,747$49.4M0.02%−1,812,400−87.6%Reduced
Mitsubishi UFJ Trust & Banking Corp265,363$51.0M0.11%−107,948−28.9%Reduced
Wealth Enhancement Advisory Services, LLC277,165$51.8M0.08%−13,587−4.7%Reduced
APG Asset Management N.V.318,365$52.1M0.15%+2,200+0.7%Added
Huntington National Bank273,698$52.6M0.32%+4,641+1.7%Added
First Financial Bankshares Inc276,514$53.2M1.09%+141,532+104.9%Added
Kames Capital plc277,060$53.3M0.63%−90,304−24.6%Reduced
State of Alaska, Department of Revenue279,012$53.7M0.55%−2,416−0.9%Reduced
The PNC Financial Services Group, Inc.281,960$54.2M0.03%−13,272−4.5%Reduced
Millennium Management LLC282,888$54.4M0.04%+27,729+10.9%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main283,312$54.5M0.05%−32,847−10.4%Reduced
Davis R M Inc287,333$55.3M0.97%−3,674−1.3%Reduced
Colony Group, LLC288,025$55.3M0.09%+7,243+2.6%Added
Schroder Investment Management Group291,001$56.0M0.04%+7,813+2.8%Added
National Bank of Canada300,981$57.9M0.07%−84,837−22.0%Reduced
AXA Investment Managers S.A.307,164$59.1M0.16%+307,164New
Partners Group Holding AG313,231$60.2M3.34%−18,143−5.5%Reduced
Toronto Dominion Bank313,300$60.3M0.12%+4,547+1.5%Added
Mirae Asset Global ETFs Holdings Ltd.314,086$60.4M0.10%+76,118+32.0%Added
Samlyn Capital, LLC320,592$61.7M0.88%+320,592New
Federation des caisses Desjardins du Quebec320,972$61.7M0.24%+100,171+45.4%Added
Prudential Financial Inc321,151$61.8M0.07%−14,744−4.4%Reduced
TD Asset Management Inc327,674$63.0M0.05%−14,432−4.2%Reduced
Stifel Financial Corp336,316$64.7M0.06%+16,423+5.1%Added
Fort Washington Investment Advisors Inc341,699$65.7M0.36%−10,876−3.1%Reduced
Antipodes Partners Ltd354,584$68.2M1.53%+354,584New
AQR Capital Management LLC356,218$68.5M0.04%−29,445−7.6%Reduced
Retirement Systems of Alabama366,346$70.5M0.23%−567−0.2%Reduced
Squarepoint Ops LLC367,094$70.6M0.15%+353,705+2,641.8%Added
Centersquare Investment Management LLC369,506$71.1M0.71%−59,391−13.8%Reduced
New York State Teachers Retirement System374,107$71.9M0.14%−2,999−0.8%Reduced
Pacer Advisors, Inc.377,243$72.6M0.19%+33,182+9.6%Added
Jane Street Group, LLC379,916$73.1M0.09%+379,916New
Border to Coast Pensions Partnership Ltd392,264$75.4M1.31%+7,500+1.9%Added
Brookfield Asset Management Inc.394,884$75.9M0.09%−35,454−8.2%Reduced
Evercore Wealth Management, LLC396,800$76.3M1.12%−8,752−2.2%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH397,438$76.4M0.13%+9,210+2.4%Added
Lansforsakringar Fondforvaltning AB (publ)407,401$78.4M0.41%+6,668+1.7%Added
Rathbone Brothers plc412,788$79.4M0.32%+31,635+8.3%Added
Douglas Lane & Associates, LLC413,292$79.5M1.11%−621−0.2%Reduced
CCLA Investment Management Ltd419,466$80.6M1.29%−2,996−0.7%Reduced
Avenir Corp419,466$80.7M8.40%−13,519−3.1%Reduced
Adage Capital Partners GP, L.L.C.425,805$81.9M0.13%−38,000−8.2%Reduced
State Board of Administration of Florida Retirement System426,173$82.0M0.14%−31,040−6.8%Reduced
Alkeon Capital Management LLC428,401$82.4M0.37%00.0%Unchanged
Voloridge Investment Management, LLC437,763$84.2M0.28%+437,763New
NZS Capital, LLC440,213$84.7M2.59%+105,789+31.6%Added
Akre Capital Management LLCSuperinvestorAkre Capital Management442,843$85.2M0.85%−472,406−51.6%Reduced
Great Lakes Advisors, LLC443,482$85.3M0.71%−9,359−2.1%Reduced
Maryland State Retirement & Pension System457,275$87.9M1.85%+12,661+2.8%Added
Douglass Winthrop Advisors, LLC463,703$89.2M1.55%+18,705+4.2%Added
Mariner, LLC473,470$91.1M0.12%+73,928+18.5%Added
Pictet Asset Management Holding SA476,243$91.6M0.09%+53,022+12.5%Added
Aviva PLC478,997$92.1M0.17%+29,382+6.5%Added