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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
Seelaus Asset Management LLC2,454$423.5K0.31%+110+4.7%Added
Wilian Securities, LLC2,447$422.3K1.04%−932−27.6%Reduced
Pallas Capital Advisors LLC2,443$421.6K0.02%−5,300−68.4%Reduced
Peak Financial Advisors LLC2,438$420.7K0.19%+33+1.4%Added
Harel Insurance Investments & Financial Services Ltd.2,429$419.0K0.00%+1,918+375.3%Added
Richard W. Paul & Associates, LLC2,425$418.5K0.14%+114+4.9%Added
Mill Creek Capital Advisors, LLC2,395$413.3K0.01%−188−7.3%Reduced
Monetary Management Group Inc2,393$413.0K0.10%+50+2.1%Added
General Partner, Inc.2,391$412.6K0.25%00.0%Unchanged
Sanibel Captiva Trust Company, Inc.2,391$412.6K0.01%+400+20.1%Added
Southeast Asset Advisors Inc.2,391$412.6K0.05%00.0%Unchanged
Aew Capital Management L P2,380$410.7K0.03%−90,290−97.4%Reduced
HBK Sorce Advisory LLC2,321$409.8K0.01%+318+15.9%Added
MBM Wealth Consultants, LLC2,363$407.8K0.09%+187+8.6%Added
Bridgewater Advisors Inc.2,436$404.8K0.02%−529−17.8%Reduced
Tributary Capital Management, LLC2,345$404.7K0.04%+320+15.8%Added
Fullerton Fund Management Co Ltd.2,345$404.7K0.03%+2,345New
Kennebec Savings Bank2,341$404.0K0.36%+287+14.0%Added
Probity Advisors, Inc.2,340$403.8K0.06%−15−0.6%Reduced
Sowell Financial Services LLC2,338$403.5K0.01%+132+6.0%Added
Lantz Financial LLC2,322$400.7K0.08%+2,322New
Fortitude Advisory Group L.L.C.2,320$400.4K0.18%+369+18.9%Added
Private Wealth Asset Management, LLC2,312$399.0K0.04%−848−26.8%Reduced
Defined Wealth Management, LLC2,311$398.8K0.23%−3−0.1%Reduced
Legacy Capital Wealth Partners, LLC2,308$398.4K0.08%+629+37.5%Added
Thrive Wealth Management, LLC2,306$398.0K0.06%−672−22.6%Reduced
Bullock Wealth Management Group2,324$397.5K0.20%+17+0.7%Added
Moss Adams Wealth Advisors LLC2,297$396.4K0.03%+373+19.4%Added
Sigma Planning Corp2,279$393.3K0.01%−164−6.7%Reduced
Advocate Investing Services LLC2,268$391.4K0.33%00.0%Unchanged
Anchor Investment Management, LLC2,260$390.0K0.03%−91−3.9%Reduced
1st Source Bank2,255$389.2K0.02%−57−2.5%Reduced
Hennion & Walsh Asset Management, Inc.2,251$388.5K0.01%+2,251New
Tyche Wealth Partners LLC2,251$388.4K0.06%−3−0.1%Reduced
Great Diamond Partners, LLC2,249$388.1K0.07%−9−0.4%Reduced
Parkside Financial Bank & Trust2,245$387.5K0.03%−6−0.3%Reduced
KFG Wealth Management, LLC2,233$385.4K0.05%+184+9.0%Added
Patten & Patten Inc2,232$385.2K0.02%−42−1.8%Reduced
TBH Global Asset Management, LLC2,217$382.7K0.08%−81−3.5%Reduced
ArrowMark Colorado Holdings LLC2,216$382.4K0.01%00.0%Unchanged
Catalyst Financial Partners LLC2,213$381.9K0.05%+299+15.6%Added
Turtle Creek Wealth Advisors, LLC2,212$381.8K0.03%−5,212−70.2%Reduced
Moors & Cabot, Inc.2,207$380.9K0.02%−21−0.9%Reduced
Alan B. Lancz & Associates, Inc.2,206$380.7K0.37%−150−6.4%Reduced
Pure Financial Advisors, Inc.2,204$380.4K0.01%+522+31.0%Added
Schnieders Capital Management, LLC.2,200$379.7K0.06%−500−18.5%Reduced
Keel Point, LLC2,200$379.6K0.03%−608−21.7%Reduced
Private Trust Co NA2,195$378.8K0.03%−746−25.4%Reduced
Baldwin Brothers Inc2,195$378.8K0.03%00.0%Unchanged
Palumbo Wealth Management LLC2,193$378.5K0.09%−329−13.0%Reduced
Foundations Investment Advisors, LLC2,186$377.3K0.00%−1,043−32.3%Reduced
Meiji Yasuda Life Insurance Co2,170$374.5K0.01%+420+24.0%Added
WBH Advisory Inc2,185$373.8K0.03%−2,124−49.3%Reduced
Trust Point Inc.2,162$373.1K0.03%+852+65.0%Added
Conning Inc.2,162$373.1K0.01%−389−15.2%Reduced
Arcataur Capital Management LLC2,159$372.6K0.10%00.0%Unchanged
OpenArc Corporate Advisory, LLC2,158$372.5K0.01%+419+24.1%Added
Kathmere Capital Management, LLC2,154$371.8K0.02%+917+74.1%Added
U.S. Capital Wealth Advisors, LLC2,142$369.6K0.01%+273+14.6%Added
Arkadios Wealth Advisors2,141$369.4K0.01%+149+7.5%Added
Whalerock Point Partners, LLC2,138$369.0K0.07%00.0%Unchanged
6th Street Advisors, LLC2,137$368.7K0.23%+2,137New
Radnor Capital Management, LLC2,133$368.1K0.05%−245−10.3%Reduced
Texas Capital Bank Wealth Management Services Inc2,127$367.1K0.02%+213+11.1%Added
Perennial Investment Advisors, LLC2,105$363.2K0.03%+952+82.6%Added
Mission Wealth Management, LP2,104$363.1K0.01%−328−13.5%Reduced
Naples Global Advisors, LLC2,104$363.1K0.03%00.0%Unchanged
Flputnam Investment Management Co2,101$362.5K0.01%−10,315−83.1%Reduced
OMNI 360 Wealth, Inc.2,099$362.2K0.19%00.0%Unchanged
Lakeridge Wealth Management LLC2,091$360.8K0.16%−1,951−48.3%Reduced
Spinnaker Trust2,080$359.0K0.02%−566−21.4%Reduced
1776 Wealth LLC2,075$358.1K0.14%00.0%Unchanged
Asset Advisory Group, Inc.2,072$357.6K0.18%+60+3.0%Added
Personal Cfo Solutions, LLC2,065$356.4K0.05%+398+23.9%Added
Grove Bank & Trust2,062$355.9K0.04%+16+0.8%Added
Urban Wealth Management, LLC2,060$355.5K0.36%−30−1.4%Reduced
Chancellor Financial Group WB LP2,045$352.9K0.25%−75−3.5%Reduced
Cidel Asset Management Inc2,025$349.5K0.02%+389+23.8%Added
Frec Markets, Inc.2,024$349.3K0.06%+35+1.8%Added
Mairs & Power Inc2,020$348.6K0.00%00.0%Unchanged
Deseret Mutual Benefit Administrators2,020$348.6K0.12%+1,074+113.5%Added
Adirondack Trust Co2,016$347.9K0.12%+29+1.5%Added
Sargent Investment Group, LLC2,006$346.2K0.05%+223+12.5%Added
TriaGen Wealth Management LLC2,001$345.3K0.09%+56+2.9%Added
Archer Investment Corp2,000$345.2K0.07%00.0%Unchanged
North Star Investment Management Corp.1,999$345.0K0.02%+7+0.4%Added
FNY Investment Advisers, LLC2,000$345.0K0.15%+2,000New
Visionary Horizons, LLC1,998$344.8K0.17%+3+0.2%Added
YANKCOM Partnership1,996$344.5K0.14%+248+14.2%Added
Pitcairn Wealth Advisors LLC1,948$342.0K0.03%00.0%Unchanged
One Charles Private Wealth Services, LLC1,977$341.2K0.09%00.0%Unchanged
Nordwand Advisors, LLC1,975$340.8K0.06%−881−30.8%Reduced
Formidable Asset Management, LLC1,935$339.8K0.05%−3,601−65.0%Reduced
Unify Financial Advisors1,966$339.3K0.35%+148+8.1%Added
Adviser Investments LLC1,963$338.8K0.00%+26+1.3%Added
SageView Advisory Group, LLC1,953$337.0K0.01%−205−9.5%Reduced
Cypress Financial Planning LLC1,939$334.7K0.09%00.0%Unchanged
Plimoth Trust Co LLC1,931$333.3K0.07%−100−4.9%Reduced
Wallace Advisory Group, LLC1,929$332.9K0.36%+49+2.6%Added
Armis Advisers, LLC1,911$332.3K0.03%+159+9.1%Added