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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
Allianz SE32,121$5.54M0.06%−250−0.8%Reduced
Payden & Rygel33,400$5.76M0.45%+29,200+695.2%Added
HM Payson & Co33,575$5.79M0.08%−126−0.4%Reduced
CWM, LLC33,623$5.80M0.02%−9,905−22.8%Reduced
Wedge Capital Management L L P34,328$5.92M0.11%−14,659−29.9%Reduced
Commerce Bank34,344$5.93M0.03%+18,603+118.2%Added
Schroder Investment Management Group34,432$5.94M0.00%−409−1.2%Reduced
Canal Capital Management, LLC34,471$5.95M0.81%+15,520+81.9%Added
Oddo BHF Asset Management SAS34,704$5.99M0.24%+1,402+4.2%Added
Cambridge Investment Research Advisors, Inc.34,743$6.00M0.02%+3,099+9.8%Added
Mercer Global Advisors Inc35,715$6.16M0.01%+1,341+3.9%Added
FIL Ltd35,726$6.17M0.00%−38,392−51.8%Reduced
Generali Asset Management SPA SGR36,038$6.22M0.13%−14,112−28.1%Reduced
Vancity Investment Management Ltd36,057$6.22M0.99%+219+0.6%Added
Crossmark Global Holdings, Inc.36,062$6.22M0.09%−451−1.2%Reduced
Gulf International Bank (UK) Ltd36,142$6.24M0.14%+12,748+54.5%Added
Gotham Asset Management, LLC36,289$6.26M0.02%−77,765−68.2%Reduced
Toroso Investments, LLC36,457$6.27M0.02%+10,189+38.8%Added
Gillson Capital LP36,600$6.32M0.52%+36,600New
Teachers Retirement System of the State of Kentucky36,670$6.33M0.05%00.0%Unchanged
Oppenheimer & Co Inc36,874$6.36M0.08%−2,329−5.9%Reduced
Level Four Advisory Services, LLC36,938$6.37M0.21%+6,417+21.0%Added
AE Wealth Management LLC37,015$6.39M0.03%+5,741+18.4%Added
Private Advisor Group, LLC37,134$6.41M0.03%−637−1.7%Reduced
Jacobs & Co37,254$6.43M0.63%+1,321+3.7%Added
ING Groep NV37,377$6.45M0.04%−23,124−38.2%Reduced
Commerzbank Aktiengesellschaft37,639$6.50M0.14%−28,057−42.7%Reduced
Palisade Asset Management, LLC37,641$6.50M0.65%+575+1.6%Added
HB Wealth Management, LLC37,770$6.52M0.04%−2,244−5.6%Reduced
Nicholas Company, Inc.37,795$6.52M0.13%00.0%Unchanged
Zions Bancorporation, National Association38,365$6.62M0.43%+33,880+755.4%Added
Metis Global Partners, LLC39,028$6.74M0.17%−2,526−6.1%Reduced
Osmosis Investment Management UK Ltd39,153$6.76M0.18%+10,622+37.2%Added
Edgestream Partners, L.P.39,582$6.83M0.22%+25,821+187.6%Added
Rafferty Asset Management, LLC39,772$6.86M0.03%−14,731−27.0%Reduced
1832 Asset Management L.P.39,793$6.87M0.01%+6,820+20.7%Added
Jennison Associates LLC40,250$6.95M0.00%−17,705−30.5%Reduced
Lighthouse Investment Partners, LLC40,616$7.01M0.26%+31,674+354.2%Added
Park National Corp40,737$7.03M0.21%+1,113+2.8%Added
Lincluden Management Ltd41,505$7.16M0.76%+1,995+5.0%Added
Abn Amro Investment Solutions41,610$7.18M0.09%+721+1.8%Added
Ilmarinen Mutual Pension Insurance Co41,779$7.21M0.06%+12,830+44.3%Added
Sone Capital Management, LLC41,835$7.22M0.61%−64,542−60.7%Reduced
Aristotle Atlantic Partners, LLC42,000$7.25M0.34%+2,000+5.0%Added
Bernzott Capital Advisors42,161$7.28M3.49%+9,556+29.3%Added
Atria Investments LLC42,280$7.30M0.08%+17,447+70.3%Added
Vanderbilt University42,295$7.30M1.39%+740+1.8%Added
T. Rowe Price Investment Management, Inc.42,423$7.32M0.01%+442+1.1%Added
Dividend Assets Capital, LLC42,665$7.36M1.47%+6,006+16.4%Added
Easterly Investment Partners LLC43,162$7.38M0.56%−10,018−18.8%Reduced
Advisory Services Network, LLC43,181$7.45M0.10%+8,525+24.6%Added
Ausbil Investment Management Ltd43,872$7.50M3.73%+31,414+252.2%Added
Glenmede Trust Co NA44,182$7.62M0.04%−72,114−62.0%Reduced
Signal Advisors Wealth, LLC44,194$7.63M0.52%−717−1.6%Reduced
Klingenstein Fields & Co LP44,330$7.65M0.30%−1,070−2.4%Reduced
Andra AP-fonden44,585$7.69M0.10%−79,015−63.9%Reduced
Northwestern Mutual Wealth Management Co44,656$7.71M0.00%+193+0.4%Added
Snowden Capital Advisors LLC45,066$7.78M0.21%+4,355+10.7%Added
Sterling Capital Management LLC45,618$7.87M0.15%−9,250−16.9%Reduced
Warren Averett Asset Management, LLC45,679$7.88M0.06%+4,775+11.7%Added
Socorro Asset Management LP45,799$7.90M3.58%−4,718−9.3%Reduced
Linscomb & Williams, Inc.46,244$7.98M0.36%−7,839−14.5%Reduced
Tower Research Capital LLC (TRC)46,297$7.99M0.21%+12,929+38.7%Added
Quantbot Technologies LP46,430$8.01M0.33%+36,474+366.4%Added
OP Asset Management Ltd47,682$8.23M0.08%−3,454−6.8%Reduced
Capital International Inc47,771$8.24M0.06%−3,892−7.5%Reduced
Lowe Brockenbrough & Co Inc49,353$8.52M0.42%+3,187+6.9%Added
Fiduciary Trust Co49,585$8.56M0.10%−8,370−14.4%Reduced
Mutual of America Capital Management LLC49,792$8.59M0.10%−474−0.9%Reduced
Baillie Gifford & Co50,022$8.63M0.01%−6,159−11.0%Reduced
MML Investors Services, LLC50,103$8.65M0.02%+7,797+18.4%Added
Wilkins Investment Counsel Inc50,439$8.70M1.25%+9,959+24.6%Added
Akre Capital Management LLCSuperinvestorAkre Capital Management50,772$8.76M0.14%−204,495−80.1%Reduced
Gilder Gagnon Howe & Co LLC50,802$8.77M0.11%−879−1.7%Reduced
Middleton & Co Inc51,113$8.82M1.01%−259−0.5%Reduced
Washington Trust Advisors, Inc.51,437$8.88M0.72%−607−1.2%Reduced
Investment Management Corp of Ontario51,966$8.97M0.12%−12,821−19.8%Reduced
GWM Advisors LLC52,153$9.00M0.03%−12,648−19.5%Reduced
JustInvest LLC52,284$9.02M0.09%−4,100−7.3%Reduced
Bridges Investment Management Inc52,764$9.11M0.12%+3,237+6.5%Added
Soros Capital Management LLC52,908$9.13M3.97%+52,908New
Williams Jones Wealth Management, LLC.53,332$9.20M0.11%−2,425−4.3%Reduced
Oregon Public Employees Retirement Fund53,612$9.25M0.12%00.0%Unchanged
Keybank National Association53,618$9.25M0.03%−4,812−8.2%Reduced
Soltis Investment Advisors LLC53,643$9.26M0.60%+9,487+21.5%Added
Natixis54,231$9.36M0.04%−67,320−55.4%Reduced
Candriam Luxembourg S.C.A.54,243$9.36M0.05%+2,485+4.8%Added
Adelante Capital Management LLC54,289$9.37M0.66%−2,551−4.5%Reduced
Kingsview Wealth Management, LLC54,927$9.48M0.13%+4,044+7.9%Added
Raiffeisen Bank International AG56,161$9.57M0.14%−108,201−65.8%Reduced
Ethic Inc.55,612$9.60M0.15%+7,399+15.3%Added
Advisor Group Holdings, Inc.55,926$9.66M0.01%−3,687−6.2%Reduced
Northwest & Ethical Investments L.P.56,335$9.72M0.22%+4,807+9.3%Added
B. Metzler seel. Sohn & Co. AG56,365$9.73M0.09%+2,187+4.0%Added
Trillium Asset Management, LLC56,388$9.73M0.32%−22,517−28.5%Reduced
Jump Financial, LLC56,597$9.77M0.14%−173,834−75.4%Reduced
Bridgewater Associates, LP56,914$9.82M0.04%−29,367−34.0%Reduced
Mackenzie Financial Corp57,111$9.86M0.01%−29,011−33.7%Reduced
Horizon Investments, LLC58,456$9.99M0.11%+33,683+136.0%Added
Skylands Capital, LLC58,710$10.1M1.33%−5,020−7.9%Reduced