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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 2023

Institutional positions in American Tower Corp as of Sep 30, 2023. 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
1,634
−29 vs. Q2 2023
Shares held
424.7M
+2.25M (+0.5%) vs. Q2 2023
Total value
$69.9B
−$12.1B (−14.7%) vs. Q2 2023
New holders
119
660 more added
Sold out
148
657 more reduced

25 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2023: 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 2023: 1,634 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 heldQ3 2023: $69.9B
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, Q3 2023

Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q2 2023.

Institutions holding AMT in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Baird Financial Group, Inc.140,497$23.1M0.06%−51,013−26.6%Reduced
Dearborn Partners LLC141,408$23.3M0.91%−1,171−0.8%Reduced
Klingenstein Fields & Co LP143,393$23.6M1.15%−9,206−6.0%Reduced
ABN AMRO Bank N.V.143,441$23.6M0.42%+11,529+8.7%Added
Mirae Asset Global Investments Co., Ltd.143,516$23.6M0.05%+3,425+2.4%Added
Qube Research & Technologies Ltd145,288$23.9M0.07%+145,288New
American Assets Capital Advisers, LLC145,745$24.0M6.77%−23,179−13.7%Reduced
Heitman Real Estate Securities LLC145,954$24.0M1.44%+6,635+4.8%Added
IFM Investors Pty Ltd148,242$24.4M0.32%+265+0.2%Added
Hazelview Securities Inc.151,909$24.6M4.47%+12,060+8.6%Added
Calamos Advisors LLC149,380$24.6M0.13%+455+0.3%Added
KBC Group NV150,892$24.8M0.10%+3,921+2.7%Added
ExodusPoint Capital Management, LP151,788$25.0M0.32%+32,811+27.6%Added
Greenleaf Trust152,828$25.1M0.29%+3,737+2.5%Added
Natixis152,979$25.2M0.20%−29,297−16.1%Reduced
AQR Capital Management LLC158,725$26.1M0.05%+5,045+3.3%Added
Boston Financial Mangement LLC160,359$26.4M0.99%−4,659−2.8%Reduced
Handelsbanken Fonder AB161,673$26.6M0.15%+2,972+1.9%Added
Fifth Third Bancorp161,676$26.6M0.12%+1,474+0.9%Added
Barr E S & Co161,777$26.6M1.93%+21,392+15.2%Added
Aureus Asset Management, LLC166,006$27.3M2.19%+390.0%Added
Baillie Gifford & Co167,436$27.5M0.03%+86,345+106.5%Added
Schroder Investment Management Group170,054$28.0M0.04%−8,160−4.6%Reduced
Factory Mutual Insurance Co171,800$28.3M0.39%+26,000+17.8%Added
Scotia Capital Inc.176,792$29.1M0.21%−70,395−28.5%Reduced
STRS Ohio177,006$29.1M0.13%−2,719−1.5%Reduced
Victory Capital Management Inc177,288$29.2M0.03%+806+0.5%Added
Fairview Capital Investment Management, LLC178,147$29.3M1.88%+116,294+188.0%Added
Public Employees Retirement Association of Colorado178,155$29.3M0.15%−5,192−2.8%Reduced
DekaBank Deutsche Girozentrale182,086$29.6M0.07%+52,994+41.1%Added
Clark Capital Management Group, Inc.181,730$29.9M0.30%+3,578+2.0%Added
Granite Bay Wealth Management, LLC167,602$30.6M0.30%+164,922+6,153.8%Added
State of Tennessee, Treasury Department192,168$31.6M0.13%−155,115−44.7%Reduced
HighTower Advisors, LLC193,616$31.6M0.06%−4,314−2.2%Reduced
GW&K Investment Management, LLC193,038$31.7M0.32%−45,078−18.9%Reduced
Robeco Institutional Asset Management B.V.195,251$32.1M0.09%−34,224−14.9%Reduced
Northeast Investment Management195,408$32.1M1.89%−2,843−1.4%Reduced
Howland Capital Management LLC197,209$32.4M1.89%+1,106+0.6%Added
Asset Management One Co.,Ltd.199,771$32.9M0.15%+2,317+1.2%Added
First Republic Investment Management, Inc.200,693$33.0M0.09%+200,693New
Royal London Asset Management Ltd204,579$33.7M0.11%+17,565+9.4%Added
Brown Brothers Harriman & Co205,709$33.8M0.30%−4,927−2.3%Reduced
Mackenzie Financial Corp215,248$34.0M0.06%+6,612+3.2%Added
Treasurer of the State of North Carolina210,578$34.6M0.19%+790+0.4%Added
Truist Financial Corp212,844$35.0M0.06%+35,444+20.0%Added
King Luther Capital Management Corp213,491$35.1M0.18%−31,651−12.9%Reduced
AMF Pensionsforsakring AB215,673$35.5M0.35%−44,542−17.1%Reduced
Susquehanna International Group, LLP217,709$35.8M0.06%+62,481+40.3%Added
Trillium Asset Management, LLC218,691$36.0M1.08%+16,854+8.4%Added
Clal Insurance Enterprises Holdings Ltd220,500$36.3M0.51%00.0%Unchanged
D. E. Shaw & Co., Inc.221,279$36.4M0.06%−1,089,075−83.1%Reduced
Advisor Group Holdings, Inc.221,555$36.5M0.05%+51,624+30.4%Added
Ci Investments Inc.222,278$36.6M0.20%−1,080−0.5%Reduced
TD Asset Management Inc223,546$36.8M0.04%−161,327−41.9%Reduced
Madison Asset Management, LLC226,017$37.2M0.55%−16,587−6.8%Reduced
GEM Realty Capital230,168$37.9M6.70%+134,394+140.3%Added
Haverford Trust Co230,465$37.9M0.46%−8,689−3.6%Reduced
Alyeska Investment Group, L.P.231,696$38.1M0.26%+224,501+3,120.2%Added
Wealth Enhancement Advisory Services, LLC233,995$38.5M0.13%+233,995New
Public Employees Retirement System of Ohio234,144$38.5M0.17%−18,592−7.4%Reduced
Allianz Asset Management GmbH235,311$38.7M0.08%−55,692−19.1%Reduced
Pictet Asset Management Holding SA235,355$38.7M0.05%+235,355New
Raymond James Financial Services Advisors, Inc.238,865$39.3M0.07%+3,459+1.5%Added
Rathbone Brothers plc244,903$40.3M0.29%+37,151+17.9%Added
State of Wisconsin Investment Board247,974$40.8M0.13%−111,235−31.0%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)248,002$40.8M0.18%+9,704+4.1%Added
Healthcare of Ontario Pension Plan Trust Fund249,804$41.1M0.19%−3,172−1.3%Reduced
Chevy Chase Trust Holdings, Inc.262,259$43.1M0.17%−5,972−2.2%Reduced
Cincinnati Financial Corp263,600$43.3M1.05%00.0%Unchanged
RWC Asset Management LLP264,900$43.6M2.84%+6,932+2.7%Added
EP Wealth Advisors, LLC266,534$43.8M0.68%+41,026+18.2%Added
Reaves W H & Co Inc269,106$44.3M1.75%+35,000+15.0%Added
Mariner, LLC275,050$45.2M0.12%+5,005+1.9%Added
State of Alaska, Department of Revenue278,396$45.8M0.58%+385+0.1%Added
Voloridge Investment Management, LLC278,882$45.9M0.23%+27,135+10.8%Added
CIBC Asset Management Inc279,972$46.0M0.19%+5,134+1.9%Added
The PNC Financial Services Group, Inc.288,165$47.4M0.04%−16,424−5.4%Reduced
Nisa Investment Advisors, LLC288,628$47.5M0.36%+379+0.1%Added
Aew Capital Management L P290,577$47.8M2.00%+109,718+60.7%Added
Two Sigma Investments, LP294,385$48.4M0.14%−78,652−21.1%Reduced
Locust Wood Capital Advisers, LLC295,510$48.6M2.32%+1,034+0.4%Added
Toronto Dominion Bank296,499$48.8M0.08%−6,943−2.3%Reduced
Ninety One UK Ltd299,360$49.2M0.16%+34,773+13.1%Added
LPL Financial LLC303,915$50.0M0.04%+30,632+11.2%Added
Bartlett & Co. Wealth Management LLC304,396$50.1M0.90%−4,001−1.3%Reduced
Bartlett & Co. LLC304,396$50.1M0.90%−4,001−1.3%Reduced
Davis R M Inc312,366$51.4M1.29%+8,347+2.7%Added
Fort Washington Investment Advisors Inc312,667$51.4M0.39%+52,699+20.3%Added
DF Dent & Co Inc316,565$52.1M0.76%−88,763−21.9%Reduced
Partners Group Holding AG321,045$52.8M4.94%+35,797+12.5%Added
Echo Street Capital Management LLC323,755$53.2M0.50%+323,755New
Maple-Brown Abbott Ltd332,680$54.7M6.27%+332,680New
Broad Run Investment Management, LLC334,037$54.9M7.26%−4,676−1.4%Reduced
CI Private Wealth, LLC335,537$55.2M0.13%+15,531+4.9%Added
State of New Jersey Common Pension Fund D336,992$55.4M0.20%−2,159−0.6%Reduced
National Bank of Canada353,326$57.0M0.10%−270,302−43.3%Reduced
M&T Bank Corp353,879$58.2M0.23%−2,408−0.7%Reduced
Douglas Lane & Associates, LLC356,496$58.6M0.98%+31,548+9.7%Added
Allspring Global Investments Holdings, LLC359,375$59.1M0.10%+19,390+5.7%Added
Citadel Advisors LLC362,117$59.6M0.06%−102,029−22.0%Reduced