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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, Q4 2025

Institutional positions in American Tower Corp as of Dec 31, 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
1,781
+27 vs. Q3 2025
Shares held
475.7M
+47.9M (+11.2%) vs. Q3 2025
Total value
$77.0B
−$5.27B (−6.4%) vs. Q3 2025
New holders
209
572 more added
Sold out
182
819 more reduced

45 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 1,781 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 heldQ4 2025: $77.0B
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, Q4 2025

Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q3 2025.

Institutions holding AMT in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Northstar Asset Management LLC17,057$2.99M0.64%−500−2.8%Reduced
ProVise Management Group, LLC17,111$3.00M0.21%−605−3.4%Reduced
Dynamic Advisor Solutions LLC17,539$3.08M0.10%−1,400−7.4%Reduced
Knuff & Co LLC17,810$3.13M0.92%−6,935−28.0%Reduced
Amica Mutual Insurance Co18,029$3.16M0.28%00.0%Unchanged
Brevan Howard Capital Management LP18,047$3.17M0.06%+7,087+64.7%Added
Johnson Investment Counsel Inc18,101$3.18M0.03%−5,228−22.4%Reduced
IFG Advisory, LLC18,138$3.18M0.14%+1,381+8.2%Added
Nomura Holdings Inc18,169$3.19M0.01%−1,311−6.7%Reduced
Red Door Wealth Management, LLC18,257$3.21M0.33%−6,600−26.6%Reduced
Caisse de Depot Et Placement du Quebec18,283$3.21M0.01%00.0%Unchanged
Westpac Banking Corp18,381$3.23M0.20%−128−0.7%Reduced
Atlantic Trust, LLC18,389$3.23M0.51%−6,088−24.9%Reduced
Cresset Asset Management, LLC18,219$3.23M0.01%+1,341+7.9%Added
Presima Inc.18,568$3.26M1.88%+358+2.0%Added
Longfellow Investment Management Co LLC18,763$3.29M0.74%+16,728+822.0%Added
Assenagon Asset Management S.A.18,768$3.30M0.00%+420+2.3%Added
Callan Family Office, LLC18,812$3.30M0.07%+1,091+6.2%Added
Garrett Investment Advisors LLC18,823$3.30M0.26%+3,596+23.6%Added
Canal Capital Management, LLC18,951$3.33M0.47%−12,108−39.0%Reduced
Wendell David Associates Inc19,123$3.36M0.34%−16,510−46.3%Reduced
Crestwood Advisors Group LLC19,159$3.36M0.06%−2,206−10.3%Reduced
Financiere des Professionnels - Fonds d,investissement inc.19,160$3.36M0.19%−68,930−78.2%Reduced
Fayez Sarofim & Co19,204$3.37M0.01%−31,673−62.3%Reduced
FineMark National Bank & Trust19,240$3.38M0.11%−2,810−12.7%Reduced
FRG Family Wealth Advisors LLC19,725$3.46M0.54%−1,315−6.3%Reduced
Empowered Funds, LLC19,732$3.46M0.06%−406−2.0%Reduced
Chicago Partners Investment Group LLC19,404$3.47M0.09%−5,705−22.7%Reduced
Parallel Advisors, LLC19,890$3.50M0.06%−1,774−8.2%Reduced
Ostrum Asset Management19,930$3.50M0.17%+1,374+7.4%Added
Bill Few Associates, Inc.20,011$3.51M0.86%+1,044+5.5%Added
AG2R la Mondiale Gestion D'Actifs20,024$3.52M0.16%+1,887+10.4%Added
Banque Cantonale Vaudoise20,191$3.54M0.13%+692+3.5%Added
E. Ohman J:or Asset Management AB20,230$3.55M0.08%00.0%Unchanged
DoubleLine ETF Adviser LP20,533$3.60M1.08%−8,075−28.2%Reduced
Edgar Lomax Co20,540$3.61M0.27%−505−2.4%Reduced
Dai-Ichi Life Insurance Company, Ltd20,637$3.62M0.09%00.0%Unchanged
Appleton Partners Inc20,804$3.65M0.24%−822−3.8%Reduced
TCG Advisory Services, LLC21,143$3.71M0.10%+4,755+29.0%Added
Intact Investment Management Inc.21,200$3.72M0.11%+3,700+21.1%Added
Koa Wealth Management, LLC21,200$3.72M2.56%+2,047+10.7%Added
Value Partners Investments Inc.21,199$3.72M0.29%+3,300+18.4%Added
Jupiter Wealth Management LLC19,838$3.73M1.66%00.0%Unchanged
New Mexico Educational Retirement Board21,368$3.75M0.11%+200+0.9%Added
Algert Global LLC21,498$3.77M0.06%+7,019+48.5%Added
We Are One Seven, LLC21,531$3.78M0.08%+2,253+11.7%Added
Siemens Fonds Invest GmbH21,573$3.81M0.20%−2,725−11.2%Reduced
Ables, Iannone, Moore & Associates, Inc.21,731$3.82M2.09%+4,858+28.8%Added
Bogart Wealth, LLC21,850$3.84M0.15%−35,573−61.9%Reduced
Bank Julius Baer & Co. Ltd, Zurich21,739$3.84M0.01%+8,155+60.0%Added
Cape Cod Five Cents Savings Bank16,720$3.89M0.36%00.0%Unchanged
Wesbanco Bank Inc22,366$3.93M0.11%−137−0.6%Reduced
QRG Capital Management, Inc.22,373$3.93M0.04%−5,082−18.5%Reduced
Charter Trust Co22,474$3.95M0.23%−992−4.2%Reduced
Resolution Capital Ltd22,789$4.00M0.09%+15,172+199.2%Added
Twinbeech Capital LP22,800$4.00M0.28%+22,800New
Hantz Financial Services, Inc.22,934$4.03M0.06%−1,834−7.4%Reduced
Virtu Financial LLC22,964$4.03M0.16%−1,417−5.8%Reduced
Merit Financial Group, LLC23,212$4.08M0.03%+8,758+60.6%Added
GSI Capital Advisors LLC23,248$4.08M2.29%+3,979+20.6%Added
Hamilton Capital Partners Inc.23,256$4.08M0.15%+2,528+12.2%Added
Liberty Capital Management, Inc.23,320$4.09M0.76%+272+1.2%Added
Gulf International Bank (UK) Ltd23,394$4.11M0.13%00.0%Unchanged
Heritage Trust Co23,518$4.13M0.42%−1,787−7.1%Reduced
Diversified Trust Co23,625$4.15M0.08%+4,643+24.5%Added
Alta Capital Management LLC23,733$4.17M0.28%−1,328−5.3%Reduced
Sitrin Capital Management LLC23,645$4.19M1.99%+23,645New
Louisiana State Employees Retirement System23,900$4.20M0.07%−700−2.8%Reduced
Clearstead Advisors, LLC24,012$4.22M0.05%+3,835+19.0%Added
Lockheed Martin Investment Management Co24,340$4.27M0.14%+2,520+11.5%Added
M. Kulyk & Associates, LLC24,488$4.30M0.82%+1,843+8.1%Added
Perryman Financial Advisory Inc24,550$4.31M0.63%+24,550New
Gamco Investors, Inc. Et Al24,568$4.31M0.04%−723−2.9%Reduced
MidFirst Bank24,590$4.32M0.34%+24,590New
Horizon Investments, LLC24,773$4.35M0.06%−663−2.6%Reduced
Atria Investments LLC24,833$4.36M0.05%−7,162−22.4%Reduced
Naviter Wealth, LLC24,946$4.42M0.58%−8,041−24.4%Reduced
Norinchukin Bank, The25,725$4.52M0.05%+1,235+5.0%Added
Toroso Investments, LLC26,268$4.61M0.02%+15,847+152.1%Added
RMB Capital Management, LLC26,091$4.62M0.08%−6,104−19.0%Reduced
Tobam26,925$4.73M1.16%+756+2.9%Added
Hartford Investment Management Co27,089$4.76M0.14%−346−1.3%Reduced
Bath Savings Trust Co27,407$4.81M0.48%−32,353−54.1%Reduced
Coldstream Capital Management Inc27,693$4.86M0.06%−2,619−8.6%Reduced
S.E.E.D. Planning Group LLC28,253$4.96M1.41%+1,099+4.0%Added
Madison Asset Management, LLC28,568$5.02M0.06%−81,631−74.1%Reduced
Osmosis Investment Management UK Ltd28,531$5.05M0.13%+28,531New
Winton Group Ltd28,791$5.05M0.17%−5,409−15.8%Reduced
Steward Partners Investment Advisory, LLC28,924$5.08M0.03%−1,564−5.1%Reduced
One Capital Management, LLC28,944$5.08M0.15%+20,689+250.6%Added
Bragg Financial Advisors, Inc28,950$5.08M0.17%+597+2.1%Added
Ilmarinen Mutual Pension Insurance Co28,949$5.08M0.04%00.0%Unchanged
Kestra Advisory Services, LLC28,994$5.09M0.02%+44+0.2%Added
Adell Harriman & Carpenter Inc29,030$5.10M0.30%−1,603−5.2%Reduced
Verition Fund Management LLC29,038$5.10M0.03%−98,923−77.3%Reduced
Banco Bilbao Vizcaya Argentaria, S.A.29,287$5.14M0.04%−4,409−13.1%Reduced
Edgewood Management LLC29,358$5.15M0.02%00.0%Unchanged
Kentucky Retirement Systems29,368$5.16M0.14%00.0%Unchanged
McCollum Christoferson Group LLC29,967$5.26M1.52%−1,739−5.5%Reduced
Cincinnati Specialty Underwriters Insurance CO30,000$5.27M1.22%00.0%Unchanged