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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 2021

Institutional positions in American Tower Corp as of Sep 30, 2021. 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
1,678
+47 vs. Q2 2021
Shares held
412.7M
−255.0K (−0.1%) vs. Q2 2021
Total value
$109.6B
−$2.00B (−1.8%) vs. Q2 2021
New holders
131
744 more added
Sold out
84
529 more reduced

25 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2021: 1,678 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 2021: $109.6B
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 2021

Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q2 2021.

Institutions holding AMT in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Cerity Partners LLC26,240$6.96M0.15%+82+0.3%Added
Mader & Shannon Wealth Management, Inc.26,255$6.97M4.45%−17−0.1%Reduced
Kentucky Retirement Systems26,267$6.97M0.33%−211−0.8%Reduced
Steward Partners Investment Advisory, LLC26,277$6.97M0.12%+1,070+4.2%Added
Univest Financial Corp26,487$7.03M1.96%−875−3.2%Reduced
D L Carlson Investment Group Inc26,889$7.14M1.24%−70.0%Reduced
Sargent Bickham Lagudis LLC26,958$7.16M0.58%−84−0.3%Reduced
Northstar Asset Management LLC27,002$7.17M1.88%00.0%Unchanged
Hoylecohen, LLC27,011$7.17M0.68%−459−1.7%Reduced
Acadian Asset Management LLC27,174$7.21M0.03%+9,521+53.9%Added
B. Metzler seel. Sohn & Co. Holding AG27,167$7.21M0.10%−1,925−6.6%Reduced
Knuff & Co LLC27,172$7.21M2.70%−28−0.1%Reduced
NewEdge Wealth, LLC27,260$7.24M0.43%+1,257+4.8%Added
Tower Research Capital LLC (TRC)27,328$7.25M0.19%−8,129−22.9%Reduced
Howard Hughes Medical Institute27,500$7.30M2.46%00.0%Unchanged
W.G. Shaheen & Associates DBA Whitney & Co27,589$7.32M1.17%+288+1.1%Added
Telemus Capital, LLC28,064$7.45M0.63%+569+2.1%Added
Louisiana State Employees Retirement System28,300$7.51M0.18%00.0%Unchanged
NBW Capital LLC28,368$7.53M1.81%−376−1.3%Reduced
Jane Street Group, LLC28,695$7.62M0.02%+9,824+52.1%Added
Eagle Global Advisors LLC28,920$7.68M0.51%+495+1.7%Added
Kesler, Norman & Wride, LLC28,966$7.69M1.81%+124+0.4%Added
Torray LLC29,348$7.79M1.19%−978−3.2%Reduced
Integrated Advisors Network LLC29,540$7.84M0.52%+12,175+70.1%Added
Alexandria Capital, LLC29,621$7.86M0.73%−476−1.6%Reduced
Jupiter Wealth Management LLC28,510$7.87M3.71%00.0%Unchanged
New Mexico Educational Retirement Board29,768$7.90M0.28%−500−1.7%Reduced
Landsberg, Bennett, & Dubbaneh LLC29,662$7.91M1.01%−849−2.8%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd29,868$7.93M0.19%+1,140+4.0%Added
Rafferty Asset Management, LLC29,998$7.96M0.05%−6,319−17.4%Reduced
Cincinnati Specialty Underwriters Insurance CO30,000$7.96M3.20%00.0%Unchanged
National Asset Management, Inc.30,180$8.02M0.26%+625+2.1%Added
Wilkins Investment Counsel Inc30,373$8.06M1.97%−100−0.3%Reduced
PGGM Investments30,507$8.10M0.04%+17,656+137.4%Added
Commerce Bank30,631$8.13M0.06%+1,436+4.9%Added
Heritage Trust Co30,760$8.16M1.15%+1,420+4.8%Added
PFS Investments Inc.29,759$8.30M0.17%+1,635+5.8%Added
Segment Wealth Management, LLC31,526$8.37M0.99%+401+1.3%Added
Gabelli Funds LLC31,613$8.39M0.06%00.0%Unchanged
Elo Mutual Pension Insurance Co31,665$8.40M0.27%+461+1.5%Added
B&I Capital AG31,685$8.41M2.24%−6,100−16.1%Reduced
Oxbow Advisors, LLC31,886$8.46M0.86%+1,106+3.6%Added
Andra AP-fonden31,900$8.47M0.17%−8,100−20.3%Reduced
Makena Capital Management LLC31,972$8.49M1.43%+9,760+43.9%Added
Gamble Jones Investment Counsel32,052$8.51M0.56%−1,595−4.7%Reduced
Mariner, LLC32,326$8.58M0.04%+1,750+5.7%Added
Daiwa Securities Group Inc.32,531$8.63M0.06%−360,659−91.7%Reduced
RiverPark Advisors, LLC32,876$8.73M1.07%00.0%Unchanged
Kempen Capital Management N.V.33,001$8.76M0.31%+2,198+7.1%Added
Adviser Investments LLC33,643$8.93M0.67%+706+2.1%Added
Simplex Trading, LLC33,159$8.96M0.32%+244+0.7%Added
HM Payson & Co34,332$9.11M0.22%−135−0.4%Reduced
Bank of the West34,431$9.14M0.95%+727+2.2%Added
Socorro Asset Management LP34,499$9.16M2.58%+34,499New
Northwest & Ethical Investments L.P.34,539$9.17M0.30%00.0%Unchanged
UBS Oconnor LLC34,685$9.21M0.08%+7,920+29.6%Added
BLB&B Advisors, LLC34,692$9.21M0.61%+1,578+4.8%Added
Maryland State Retirement & Pension System34,428$9.30M0.26%00.0%Unchanged
Cullinan Associates Inc35,152$9.33M0.52%−1,385−3.8%Reduced
Nomura Holdings Inc35,066$9.35M0.07%+29,745+559.0%Added
Smith Group Asset Management, LLC35,253$9.36M0.48%+35,253New
Stephens Inc35,592$9.45M0.15%−4,097−10.3%Reduced
Whittier Trust Co of Nevada Inc36,248$9.62M0.39%+1,077+3.1%Added
Girard Partners Ltd.36,411$9.66M1.22%+3,464+10.5%Added
Gofen & Glossberg LLC36,506$9.69M0.23%−125−0.3%Reduced
FDx Advisors, Inc.36,774$9.76M0.31%+1,950+5.6%Added
McCollum Christoferson Group LLC36,781$9.76M2.32%−85−0.2%Reduced
Nippon Life Global Investors Americas, Inc.36,790$9.78M0.51%−670−1.8%Reduced
Doyle Wealth Management37,044$9.83M0.78%+1,889+5.4%Added
DuPont Capital Management Corp37,501$9.95M0.31%−3,433−8.4%Reduced
Wilbanks Smith & Thomas Asset Management LLC37,746$10.0M0.39%+1,255+3.4%Added
Oregon Public Employees Retirement Fund38,085$10.1M0.12%+453+1.2%Added
ING Groep NV38,211$10.1M0.13%+867+2.3%Added
Sandy Spring Bank38,434$10.2M0.54%−347−0.9%Reduced
Skylands Capital, LLC38,630$10.3M1.27%−9,100−19.1%Reduced
Norinchukin Bank, The38,779$10.3M0.14%+1,157+3.1%Added
Cornerstone Advisors, LLC39,000$10.4M0.60%00.0%Unchanged
GEM Realty Capital39,176$10.4M4.21%+15,639+66.4%Added
Cambridge Investment Research Advisors, Inc.39,179$10.4M0.05%−3,200−7.6%Reduced
Park National Corp39,696$10.5M0.44%−366−0.9%Reduced
Kiwi Wealth Investments Limited Partnership39,911$10.6M0.54%−10,873−21.4%Reduced
Aristotle Atlantic Partners, LLC40,000$10.6M0.70%00.0%Unchanged
1623 Capital LLC40,000$10.6M4.47%00.0%Unchanged
Umb Bank N A41,362$11.0M0.25%+1,606+4.0%Added
Richard C. Young & CO., LTD.41,625$11.0M1.52%−708−1.7%Reduced
Fiduciary Group LLC38,572$11.1M1.26%−301−0.8%Reduced
Crossmark Global Holdings, Inc.42,388$11.3M0.26%+2,501+6.3%Added
Squarepoint Ops LLC42,686$11.3M0.08%+36,099+548.0%Added
United Asset Strategies, Inc.42,924$11.4M1.47%+1,103+2.6%Added
Bridges Investment Management Inc43,147$11.5M0.36%+1,567+3.8%Added
Great Lakes Advisors, LLC43,536$11.6M0.18%+20,076+85.6%Added
Copeland Capital Management, LLC44,024$11.7M0.33%+15,504+54.4%Added
Taylor Wealth Management Partners44,074$11.7M4.17%+1,530+3.6%Added
Atria Investments LLC44,079$11.7M0.21%+3,758+9.3%Added
Kelly Lawrence W & Associates Inc44,610$11.8M2.50%+25+0.1%Added
FIL Ltd44,723$11.9M0.01%00.0%Unchanged
Alphinity Investment Management Pty Ltd44,775$11.9M0.44%+44,775New
Hartford Investment Management Co44,795$11.9M0.33%−5,369−10.7%Reduced
Creative Planning44,967$11.9M0.02%−4,061−8.3%Reduced
MML Investors Services, LLC46,199$12.3M0.10%+1,048+2.3%Added