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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 2022

Institutional positions in American Tower Corp as of Mar 31, 2022. 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
1,723
−57 vs. Q4 2021
Shares held
415.6M
−1.40M (−0.3%) vs. Q4 2021
Total value
$104.3B
−$17.4B (−14.3%) vs. Q4 2021
New holders
104
760 more added
Sold out
161
629 more reduced

19 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2021: 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 2022: 1,723 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 2022: $104.3B
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 2022

Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q4 2021.

Institutions holding AMT in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Calamos Advisors LLC169,630$42.6M0.17%+13,267+8.5%Added
KBC Group NV166,294$41.8M0.17%+35,110+26.8%Added
Adelante Capital Management LLC163,382$41.0M2.04%−36,596−18.3%Reduced
Factory Mutual Insurance Co162,700$40.9M0.55%−6,500−3.8%Reduced
Clal Insurance Enterprises Holdings Ltd160,500$40.3M0.43%−576−0.4%Reduced
DekaBank Deutsche Girozentrale159,226$40.3M0.10%−3,128−1.9%Reduced
Gateway Investment Advisers LLC158,801$39.9M0.39%−183−0.1%Reduced
SG Americas Securities, LLC157,155$39.5M0.35%+124,491+381.1%Added
ProShare Advisors LLC156,918$39.4M0.08%−5,930−3.6%Reduced
Klingenstein Fields & Co LP155,185$39.0M1.67%+345+0.2%Added
Zurcher Kantonalbank (Zurich Cantonalbank)154,365$38.8M0.19%−7,046−4.4%Reduced
Aureus Asset Management, LLC154,347$38.8M2.58%−1,870−1.2%Reduced
Greenleaf Trust153,369$38.5M0.46%+12,458+8.8%Added
Loomis Sayles & Co L P152,723$38.4M0.05%+2,071+1.4%Added
Commonwealth Equity Services, LLC149,519$37.6M0.09%+8,946+6.4%Added
Susquehanna International Group, LLP149,352$37.5M0.06%+36,717+32.6%Added
Guggenheim Capital LLC147,474$37.0M0.22%+786+0.5%Added
American International Group, Inc.146,555$36.8M0.20%−3,671−2.4%Reduced
Dearborn Partners LLC144,106$36.2M1.37%−418−0.3%Reduced
MetLife Investment Management144,046$36.2M0.23%+43,425+43.2%Added
Abeille Asset Management SA144,021$36.2M1.03%+127,133+752.8%Added
Baird Financial Group, Inc.143,910$36.2M0.09%−103−0.1%Reduced
Advisor Group Holdings, Inc.154,196$36.1M0.07%+13,547+9.6%Added
Penserra Capital Management LLC138,877$34.9M0.83%−10,438−7.0%Reduced
United Capital Financial Advisers, LLC137,305$34.5M0.17%+4,518+3.4%Added
American Assets Capital Advisers, LLC136,820$34.4M4.05%−117,036−46.1%Reduced
IFM Investors Pty Ltd134,227$33.7M0.52%+74,405+124.4%Added
Tiaa, FSB133,673$33.5M0.12%+15,300+12.9%Added
Madison Asset Management, LLC133,026$33.4M0.48%+19,541+17.2%Added
Teacher Retirement System of Texas131,584$33.1M0.17%−39,243−23.0%Reduced
Brown Brothers Harriman & Co130,802$32.9M0.23%−2,995−2.2%Reduced
Vontobel Holding Ltd.130,272$32.7M0.28%−2,980−2.2%Reduced
Heitman Real Estate Securities LLC129,562$32.5M1.28%+73,288+130.2%Added
Mirae Asset Global Investments Co., Ltd.127,045$31.9M0.07%+22,849+21.9%Added
Covea Finance125,301$31.5M3.45%−6,000−4.6%Reduced
Arizona State Retirement System124,965$31.4M0.25%+311+0.2%Added
Carnegie Capital Asset Management, LLC124,759$31.3M1.14%+388+0.3%Added
Trillium Asset Management, LLC121,161$30.4M0.81%−7,879−6.1%Reduced
Forsta Ap-Fonden120,700$30.3M0.34%+4,400+3.8%Added
Amalgamated Bank120,397$30.2M0.23%+5,346+4.6%Added
Amalgamated Financial Corp.120,397$30.2M0.24%+120,397New
Barton Investment Management120,166$30.2M3.82%−5,160−4.1%Reduced
MUFG Americas Holdings Corp119,354$30.0M0.58%+1,182+1.0%Added
USS Investment Management Ltd117,497$29.5M0.25%+8,255+7.6%Added
CIBC Asset Management Inc117,360$29.5M0.10%−101,587−46.4%Reduced
Boston Financial Mangement LLC117,175$29.4M1.12%+543+0.5%Added
Comerica Bank109,694$29.4M0.21%−453−0.4%Reduced
Handelsbanken Fonder AB115,623$29.0M0.16%−781−0.7%Reduced
Natixis115,038$28.9M0.10%−104,245−47.5%Reduced
State of Michigan Retirement System114,884$28.9M0.17%+189+0.2%Added
DnB Asset Management AS114,752$28.8M0.17%+8,262+7.8%Added
Janney Montgomery Scott LLC113,942$28.6M0.12%−150.0%Reduced
Westpac Banking Corp113,227$28.4M0.33%−40,626−26.4%Reduced
Motley Fool Wealth Management, LLC112,987$28.4M1.36%−11,751−9.4%Reduced
Rockefeller Capital Management L.P.112,369$28.2M0.14%−52,463−31.8%Reduced
Boston Family Office LLC111,659$28.1M2.00%+100.0%Added
Alberta Investment Management Corp110,600$27.8M0.16%+10,400+10.4%Added
GEM Realty Capital110,041$27.6M6.97%+16,769+18.0%Added
Nomura Asset Management Co Ltd106,456$26.7M0.15%+10,958+11.5%Added
Whittier Trust Co106,373$26.7M0.45%+1,546+1.5%Added
Baskin Financial Services Inc.106,314$26.7M2.35%+1,785+1.7%Added
Presima Inc.105,560$26.5M5.38%−5,300−4.8%Reduced
Boston Private Wealth LLC104,518$26.3M0.35%+9,596+10.1%Added
Barr E S & Co104,368$26.2M1.79%+10,435+11.1%Added
Mill Capital Management, LLC103,791$26.1M2.49%+1,980+1.9%Added
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund101,784$25.6M0.25%−11,900−10.5%Reduced
RMB Capital Management, LLC101,778$25.6M0.81%−685−0.7%Reduced
First Long Island Investors, LLC101,748$25.6M2.17%−1,729−1.7%Reduced
Campbell Newman Asset Management Inc101,729$25.6M2.46%−421−0.4%Reduced
Teachers Retirement System of the State of Kentucky100,524$25.3M0.25%−27,884−21.7%Reduced
Rheos Capital Works Inc.100,100$25.1M1.21%−62,500−38.4%Reduced
Colony Group LLC95,041$23.9M0.36%+61,896+186.7%Added
Xponance, Inc.94,389$23.7M0.39%+970+1.0%Added
Thrivent Financial for Lutherans94,082$23.7M0.05%−22,204−19.1%Reduced
Natixis Advisors, L.P.91,789$23.1M0.09%−26,369−22.3%Reduced
Hazelview Securities Inc.85,493$22.5M2.91%−19,905−18.9%Reduced
Financial Counselors Inc88,781$22.3M0.46%+1,114+1.3%Added
Gulf International Bank (UK) Ltd87,706$22.0M0.33%+2,646+3.1%Added
Raub Brock Capital Management LP87,190$21.9M3.73%−11,575−11.7%Reduced
Yousif Capital Management, LLC86,986$21.9M0.24%−726−0.8%Reduced
Tower Research Capital LLC (TRC)86,494$21.7M0.21%+28,925+50.2%Added
Ilmarinen Mutual Pension Insurance Co86,449$21.7M0.28%+23,449+37.2%Added
Sit Investment Associates Inc85,431$21.5M0.58%+3,902+4.8%Added
Stock Yards Bank & Trust Co84,915$21.3M1.19%+1,966+2.4%Added
Heritage Investors Management Corp82,015$20.6M0.82%+5,271+6.9%Added
MAI Capital Management81,431$20.5M0.35%+1,891+2.4%Added
Fulton Breakefield Broenniman LLC81,293$20.4M1.80%+1,488+1.9%Added
Skandinaviska Enskilda Banken AB (publ)80,942$20.3M0.12%−5,157−6.0%Reduced
Federation des caisses Desjardins du Quebec80,756$20.3M0.20%+18,070+28.8%Added
Utah Retirement Systems80,498$20.2M0.27%−1,400−1.7%Reduced
Ninety One UK Ltd79,795$20.0M0.05%+18,156+29.5%Added
Impax Asset Management Group plc79,200$19.9M0.08%00.0%Unchanged
Cohen Klingenstein LLC78,609$19.7M0.82%00.0%Unchanged
Destination Wealth Management78,558$19.7M0.73%+2,840+3.8%Added
Oppenheimer Asset Management Inc.78,324$19.7M0.28%+5,270+7.2%Added
Van Eck Associates Corp77,835$19.6M0.04%+7,588+10.8%Added
Dana Investment Advisors, Inc.77,060$19.4M0.89%+12,835+20.0%Added
Davis Selected Advisers76,830$19.3M0.10%+850+1.1%Added
Apriem Advisors76,699$19.3M2.83%+76,699New
Middleton & Co Inc76,320$19.2M2.05%+323+0.4%Added