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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
Triangle Securities Wealth Management6,923$1.19M0.27%−66−0.9%Reduced
Brighton Jones LLC6,898$1.19M0.03%+6,898New
AMF Pensionsforsakring AB6,880$1.19M0.01%00.0%Unchanged
Intrust Bank NA6,870$1.19M0.10%+2,335+51.5%Added
United Bank6,838$1.18M0.39%+562+9.0%Added
Sage Capital Management, LLC6,821$1.18M0.55%−266−3.8%Reduced
Resolution Capital Ltd6,791$1.17M0.02%−15,998−70.2%Reduced
Revisor Wealth Management LLC6,791$1.17M0.32%+227+3.5%Added
Baker Tilly Wealth Management, LLC6,774$1.17M0.28%+1,549+29.6%Added
Mirabaud Asset Management Ltd6,833$1.16M0.96%−1,219−15.1%Reduced
Marion Wealth Management6,745$1.16M0.26%+504+8.1%Added
Westhampton Capital, LLC6,735$1.16M0.54%−148−2.2%Reduced
Smartleaf Asset Management LLC6,733$1.15M0.04%+1,129+20.1%Added
Outfitter Financial LLC6,645$1.15M0.89%+1,170+21.4%Added
Cordatus Wealth Management LLC6,608$1.14M0.27%+122+1.9%Added
Cross Staff Investments Inc6,602$1.14M0.75%+12+0.2%Added
Bradley Foster & Sargent Inc6,594$1.14M0.02%−802−10.8%Reduced
Argent Advisors, Inc.6,485$1.12M0.31%−140−2.1%Reduced
Meeder Advisory Services, Inc.6,470$1.12M0.05%+776+13.6%Added
Harmony Asset Management LLC6,462$1.12M0.34%−215−3.2%Reduced
GLOBALT Investments LLC6,443$1.11M0.04%+33+0.5%Added
Acorn Financial Advisory Services Inc6,425$1.11M0.15%−37−0.6%Reduced
American National Bank6,417$1.11M0.11%+203+3.3%Added
Perigon Wealth Management, LLC6,383$1.10M0.02%−666−9.4%Reduced
Professional Financial Advisors, LLC6,379$1.10M0.22%+6,379New
Harvest Portfolios Group Inc.6,365$1.10M0.02%−3,514−35.6%Reduced
Applied Finance Capital Management, LLC6,325$1.09M0.08%+187+3.0%Added
Bailard, Inc.6,285$1.08M0.02%−46−0.7%Reduced
Pensionmark Financial Group, LLC6,277$1.08M0.02%+1,950+45.1%Added
Choate Investment Advisors6,250$1.08M0.02%−416−6.2%Reduced
LifePlan Financial, LLC6,196$1.07M0.79%+781+14.4%Added
Somerset Trust Co6,195$1.07M0.33%+268+4.5%Added
PeakShares LLC6,179$1.07M0.98%+467+8.2%Added
Tacita Capital Inc6,165$1.06M0.63%+2,241+57.1%Added
Belpointe Asset Management LLC6,162$1.06M0.04%−2,113−25.5%Reduced
Joel Isaacson & Co., LLC6,159$1.06M0.04%+18+0.3%Added
Ameritas Investment Partners, Inc.6,080$1.05M0.03%−130−2.1%Reduced
Colton Groome Financial Advisors, LLC6,062$1.05M0.30%+807+15.4%Added
Old National Bancorp6,056$1.05M0.02%+12+0.2%Added
Knollwood Investment Advisory, LLC6,049$1.04M0.11%00.0%Unchanged
Burney Co6,037$1.04M0.03%−5,163−46.1%Reduced
Postrock Partners LLC6,015$1.04M0.48%00.0%Unchanged
Barbara Oil Co.6,000$1.04M0.40%00.0%Unchanged
Ar Asset Management Inc6,000$1.03M0.20%+6,000New
BIP Wealth, LLC5,993$1.03M0.04%−354−5.6%Reduced
Prestige Wealth Management Group LLC5,967$1.03M0.20%+5,862+5,582.9%Added
Norden Group LLC5,951$1.03M0.10%−747−11.2%Reduced
Wealth Enhancement Trust Services, Inc.5,879$1.01M0.12%+1,377+30.6%Added
Applied Capital LLC5,851$1.01M0.73%+345+6.3%Added
Cim Investment Mangement Inc5,844$1.01M0.27%−27−0.5%Reduced
TigerOak Management, L.L.C.5,839$1.01M0.32%−213−3.5%Reduced
GW&K Investment Management, LLC5,829$1.01M0.01%−148,082−96.2%Reduced
Summit Financial, LLC5,812$1.00M0.01%+29+0.5%Added
Stoneridge Investment Partners LLC5,803$1.00M0.72%+3,837+195.2%Added
Herold Advisors, Inc.5,785$998.4K0.22%+75+1.3%Added
Sivia Capital Partners, LLC5,774$996.5K0.19%+649+12.7%Added
Brown Miller Wealth Management, LLC5,767$995.2K0.28%+453+8.5%Added
Garrison Point Advisors, LLC5,761$994.2K0.45%−104−1.8%Reduced
Dudley Capital Management, LLC5,695$982.9K0.43%−3,110−35.3%Reduced
Mayflower Financial Advisors, LLC5,680$980.2K0.12%−752−11.7%Reduced
Ballentine Partners, LLC5,656$976.1K0.01%−220−3.7%Reduced
Davy Global Fund Management Ltd5,631$971.8K0.07%+592+11.7%Added
Reuter James Wealth Management, LLC5,630$971.6K0.14%+5,630New
Krilogy Financial LLC5,431$969.9K0.03%−1,170−17.7%Reduced
Central Trust Co5,589$964.6K0.02%−288−4.9%Reduced
BNP Paribas5,574$954.2K0.03%−2,614−31.9%Reduced
Venture Visionary Partners LLC5,520$952.6K0.03%+164+3.1%Added
Ledyard National Bank5,496$948.5K0.08%−113−2.0%Reduced
Anb Bank5,478$945.4K0.38%−374−6.4%Reduced
Cove Private Wealth, LLC5,458$941.9K0.21%00.0%Unchanged
Campbell & CO Investment Adviser LLC5,437$938.3K0.05%+2,532+87.2%Added
Pettyjohn, Wood & White, Inc5,405$932.8K0.15%−275−4.8%Reduced
Glenview Trust Co5,393$930.7K0.01%+1,884+53.7%Added
AlphaCore Capital LLC5,352$923.6K0.02%−1,243−18.8%Reduced
Portfolio Design Labs, LLC5,341$921.8K0.16%−995−15.7%Reduced
Twin Capital Management Inc5,341$921.8K0.12%+21+0.4%Added
Trail Ridge Investment Advisors, LLC5,336$920.9K0.40%−20−0.4%Reduced
NBT Bank N A5,318$917.8K0.06%+177+3.4%Added
Reflection Asset Management5,283$911.8K0.56%+1,811+52.2%Added
Churchill Financial Advisors, LLC5,280$911.2K0.19%+1,100+26.3%Added
Community Financial Services Group, LLC5,323$910.3K0.16%+176+3.4%Added
NBC Securities, Inc.5,256$907.1K0.07%+852+19.3%Added
IHT Wealth Management, LLC5,254$906.7K0.02%+1,231+30.6%Added
EFG International AG5,218$900.0K0.02%−4,138−44.2%Reduced
GTS Securities LLC5,204$898.1K0.03%+1,295+33.1%Added
Oversea-Chinese Banking CORP Ltd5,186$895.0K0.03%+1,364+35.7%Added
Navalign, LLC5,185$894.8K0.23%−107−2.0%Reduced
Aprio Wealth Management, LLC5,172$892.6K0.05%+2,262+77.7%Added
NLB Skladi, upravljanje premozenja, d.o.o.5,166$891.5K0.04%+68+1.3%Added
Apriem Advisors5,165$891.4K0.09%−874−14.5%Reduced
Waldron Private Wealth LLC5,154$889.4K0.03%+246+5.0%Added
United Advisor Group, LLC5,144$887.7K0.11%+660+14.7%Added
Atomi Financial Group, Inc.5,143$887.6K0.03%−1,956−27.6%Reduced
Sagespring Wealth Partners, LLC5,099$879.9K0.02%+1,195+30.6%Added
Beverly Hills Private Wealth, LLC5,082$877.1K0.15%+5,082New
Center for Financial Planning, Inc.5,066$874.3K0.09%+495+10.8%Added
Bokf, NA5,059$873.1K0.01%+537+11.9%Added
Whittier Trust Co of Nevada Inc4,934$869.1K0.02%−638−11.5%Reduced
Savvy Advisors, Inc.5,030$868.1K0.02%+231+4.8%Added
Tiaa-Cref Individual & Institutional Services, LLC5,029$867.9K0.00%+5,029New