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 2025
Institutional positions in American Tower Corp as of Sep 30, 2025. 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
- 1,799
- −24 vs. Q2 2025
- Shares held
- 429.3M
- −648.5K (−0.2%) vs. Q2 2025
- Total value
- $82.5B
- −$12.4B (−13.1%) vs. Q2 2025
- New holders
- 132
- 648 more added
- Sold out
- 156
- 751 more reduced
29 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,757 | $72.0B |
| Q1 2026 | 1,760 | $74.4B |
| Q4 2025 | 1,781 | $77.0B |
| Q3 2025 | 1,799 | $82.5B |
| Q2 2025 | 1,852 | $96.5B |
| Q1 2025 | 1,845 | $95.0B |
| Q4 2024 | 1,798 | $79.6B |
| Q3 2024 | 1,852 | $99.4B |
| Q2 2024 | 1,769 | $83.8B |
| Q1 2024 | 1,769 | $85.0B |
| Q4 2023 | 1,802 | $93.6B |
| Q3 2023 | 1,634 | $69.9B |
| Q2 2023 | 1,688 | $82.1B |
| Q1 2023 | 1,706 | $86.3B |
| Q4 2022 | 1,711 | $90.0B |
| Q3 2022 | 1,693 | $91.0B |
| Q2 2022 | 1,747 | $109.0B |
| Q1 2022 | 1,723 | $104.3B |
| Q4 2021 | 1,799 | $121.8B |
| Q3 2021 | 1,678 | $109.6B |
| Q2 2021 | 1,656 | $111.7B |
| Q1 2021 | 1,613 | $95.8B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding American Tower Corp; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Tobam | 26,169 | $5.03M | 1.82% | −997−3.7% | Reduced |
| Canada Post Corp Registered Pension Plan | 25,771 | $5.01M | 0.22% | 00.0% | Unchanged |
| Oddo BHF Asset Management SAS | 25,850 | $4.97M | 0.19% | −4,032−13.5% | Reduced |
| Mercer Global Advisors Inc | 25,823 | $4.97M | 0.01% | +3,131+13.8% | Added |
| BLI - Banque de Luxembourg Investments | 25,500 | $4.96M | 0.14% | +25,500 | New |
| Horizon Investments, LLC | 25,436 | $4.89M | 0.06% | −5,239−17.1% | Reduced |
| Heritage Trust Co | 25,305 | $4.87M | 0.52% | +341+1.4% | Added |
| Gamco Investors, Inc. Et Al | 25,291 | $4.86M | 0.05% | −2,290−8.3% | Reduced |
| NJ State Employees Deferred Compensation Plan | 25,200 | $4.85M | 0.53% | 00.0% | Unchanged |
| Alta Capital Management LLC | 25,061 | $4.82M | 0.27% | +1,702+7.3% | Added |
| Red Door Wealth Management, LLC | 24,857 | $4.78M | 0.51% | −863−3.4% | Reduced |
| Hantz Financial Services, Inc. | 24,768 | $4.76M | 0.07% | −1,463−5.6% | Reduced |
| Knuff & Co LLC | 24,745 | $4.76M | 1.38% | −144−0.6% | Reduced |
| Louisiana State Employees Retirement System | 24,600 | $4.73M | 0.08% | −100−0.4% | Reduced |
| Norinchukin Bank, The | 24,490 | $4.71M | 0.06% | +233+1.0% | Added |
| Atlantic Trust, LLC | 24,477 | $4.71M | 0.80% | +9,990+69.0% | Added |
| Ieq Capital, LLC | 24,403 | $4.69M | 0.01% | −9,845−28.7% | Reduced |
| Virtu Financial LLC | 24,381 | $4.69M | 0.26% | +24,381 | New |
| Siemens Fonds Invest GmbH | 24,298 | $4.67M | 0.26% | +1,477+6.5% | Added |
| Ally Financial Inc. | 24,000 | $4.62M | 0.57% | +16,000+200.0% | Added |
| AE Wealth Management LLC | 23,992 | $4.61M | 0.03% | +1,303+5.7% | Added |
| Chicago Partners Investment Group LLC | 25,109 | $4.59M | 0.12% | −5,192−17.1% | Reduced |
| Baskin Financial Services Inc. | 23,798 | $4.58M | 0.34% | −93−0.4% | Reduced |
| Stevens Capital Management LP | 23,484 | $4.52M | 0.60% | −10,982−31.9% | Reduced |
| Charter Trust Co | 23,466 | $4.51M | 0.27% | −16−0.1% | Reduced |
| Gulf International Bank (UK) Ltd | 23,394 | $4.50M | 0.15% | −445−1.9% | Reduced |
| Synovus Financial Corp | 23,372 | $4.50M | 0.05% | −1,057−4.3% | Reduced |
| Johnson Investment Counsel Inc | 23,329 | $4.49M | 0.04% | −1,899−7.5% | Reduced |
| Liberty Capital Management, Inc. | 23,048 | $4.43M | 0.83% | +526+2.3% | Added |
| Achmea Investment Management B.V. | 22,797 | $4.38M | 0.05% | 00.0% | Unchanged |
| M. Kulyk & Associates, LLC | 22,645 | $4.36M | 0.88% | +884+4.1% | Added |
| Securian Asset Management, Inc | 22,609 | $4.35M | 0.12% | −1,750−7.2% | Reduced |
| Wesbanco Bank Inc | 22,503 | $4.33M | 0.12% | +5,892+35.5% | Added |
| Family Capital Trust Co | 22,175 | $4.26M | 1.43% | −1,245−5.3% | Reduced |
| FineMark National Bank & Trust | 22,050 | $4.24M | 0.14% | −515−2.3% | Reduced |
| Tower Research Capital LLC (TRC) | 22,021 | $4.24M | 0.12% | +2,866+15.0% | Added |
| Lockheed Martin Investment Management Co | 21,820 | $4.20M | 0.15% | −790−3.5% | Reduced |
| Parallel Advisors, LLC | 21,664 | $4.17M | 0.08% | −371−1.7% | Reduced |
| Appleton Partners Inc | 21,626 | $4.16M | 0.28% | −21−0.1% | Reduced |
| Crestwood Advisors Group LLC | 21,365 | $4.11M | 0.07% | −687−3.1% | Reduced |
| Abc Arbitrage SA | 21,280 | $4.09M | 0.40% | +21,280 | New |
| Aureus Asset Management, LLC | 21,203 | $4.08M | 0.27% | −125,613−85.6% | Reduced |
| Allstate Corp | 21,174 | $4.07M | 0.09% | +16,176+323.6% | Added |
| Hills Bank & Trust Co | 21,170 | $4.07M | 0.24% | −194−0.9% | Reduced |
| New Mexico Educational Retirement Board | 21,168 | $4.07M | 0.13% | −700−3.2% | Reduced |
| Edgar Lomax Co | 21,045 | $4.05M | 0.32% | −6,115−22.5% | Reduced |
| FRG Family Wealth Advisors LLC | 21,040 | $4.05M | 0.65% | −125−0.6% | Reduced |
| AG2R la Mondiale Gestion D'Actifs | 18,137 | $4.01M | 0.21% | 00.0% | Unchanged |
| Hamilton Capital Partners Inc. | 20,728 | $3.99M | 0.17% | +6,582+46.5% | Added |
| Dai-Ichi Life Insurance Company, Ltd | 20,637 | $3.97M | 0.10% | −4,348−17.4% | Reduced |
| Harbor Investment Advisory, LLC | 20,605 | $3.96M | 0.33% | −722−3.4% | Reduced |
| Massmutual Trust Co FSB | 20,310 | $3.91M | 0.10% | −98−0.5% | Reduced |
| Edgestream Partners, L.P. | 20,307 | $3.91M | 0.11% | +20,307 | New |
| E. Ohman J:or Asset Management AB | 20,230 | $3.89M | 0.09% | 00.0% | Unchanged |
| Cape Cod Five Cents Savings Bank | 16,720 | $3.89M | 0.36% | 00.0% | Unchanged |
| Brown Brothers Harriman & Co | 20,204 | $3.89M | 0.02% | −2,239−10.0% | Reduced |
| Clearstead Advisors, LLC | 20,177 | $3.88M | 0.06% | −15,223−43.0% | Reduced |
| Empowered Funds, LLC | 20,138 | $3.87M | 0.04% | −9,768−32.7% | Reduced |
| Waterloo Capital, L.P. | 20,134 | $3.87M | 0.29% | +9,390+87.4% | Added |
| Westwood Holdings Group Inc. | 20,040 | $3.85M | 0.03% | −143,209−87.7% | Reduced |
| Jupiter Wealth Management LLC | 19,838 | $3.82M | 1.80% | 00.0% | Unchanged |
| CWA Asset Management Group, LLC | 19,602 | $3.77M | 0.14% | −688−3.4% | Reduced |
| Ritholtz Wealth Management | 19,532 | $3.76M | 0.07% | −5,790−22.9% | Reduced |
| Banque Cantonale Vaudoise | 19,499 | $3.75M | 0.14% | +252+1.3% | Added |
| Nomura Holdings Inc | 19,480 | $3.75M | 0.02% | +18,455+1,800.5% | Added |
| Timber Creek Capital Management LLC | 19,389 | $3.73M | 0.90% | −87−0.4% | Reduced |
| LDR Capital Management LLC | 19,351 | $3.72M | 5.47% | +4,391+29.4% | Added |
| Account Management LLC | 19,350 | $3.72M | 3.97% | +300+1.6% | Added |
| We Are One Seven, LLC | 19,278 | $3.71M | 0.09% | +3,752+24.2% | Added |
| GSI Capital Advisors LLC | 19,269 | $3.71M | 2.09% | −1,568−7.5% | Reduced |
| Intech Investment Management LLC | 19,219 | $3.70M | 0.03% | −3,585−15.7% | Reduced |
| Koa Wealth Management, LLC | 19,153 | $3.68M | 2.73% | +4,209+28.2% | Added |
| Diversified Trust Co | 18,982 | $3.65M | 0.07% | +9,688+104.2% | Added |
| Bill Few Associates, Inc. | 18,967 | $3.65M | 0.94% | +1,602+9.2% | Added |
| Dynamic Advisor Solutions LLC | 18,939 | $3.64M | 0.11% | −391−2.0% | Reduced |
| Abn Amro Investment Solutions | 18,585 | $3.57M | 0.07% | −1,307−6.6% | Reduced |
| Ostrum Asset Management | 18,556 | $3.57M | 0.16% | +384+2.1% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 18,537 | $3.57M | 0.01% | −137−0.7% | Reduced |
| Westpac Banking Corp | 18,509 | $3.56M | 0.22% | −3,724−16.7% | Reduced |
| Assenagon Asset Management S.A. | 18,348 | $3.53M | 0.01% | +870+5.0% | Added |
| Caisse de Depot Et Placement du Quebec | 18,283 | $3.52M | 0.01% | 00.0% | Unchanged |
| Dean Investment Associates, LLC | 18,269 | $3.51M | 0.49% | −734−3.9% | Reduced |
| Presima Inc. | 18,210 | $3.50M | 0.96% | 00.0% | Unchanged |
| Amica Mutual Insurance Co | 18,029 | $3.47M | 0.32% | 00.0% | Unchanged |
| Value Partners Investments Inc. | 17,899 | $3.44M | 0.28% | +1,200+7.2% | Added |
| Callan Family Office, LLC | 17,721 | $3.41M | 0.11% | −1,063−5.7% | Reduced |
| ProVise Management Group, LLC | 17,716 | $3.41M | 0.25% | −34−0.2% | Reduced |
| Turtle Creek Wealth Advisors, LLC | 17,634 | $3.39M | 0.30% | +2,626+17.5% | Added |
| Northstar Asset Management LLC | 17,557 | $3.38M | 0.72% | −350−2.0% | Reduced |
| Intact Investment Management Inc. | 17,500 | $3.37M | 0.10% | +7,900+82.3% | Added |
| Natural Investments, LLC | 17,360 | $3.34M | 0.83% | +2,453+16.5% | Added |
| Perkins Coie Trust Co | 17,248 | $3.32M | 0.62% | +731+4.4% | Added |
| Carrera Capital Advisors | 17,060 | $3.31M | 0.59% | +811+5.0% | Added |
| Omers Administration Corp | 17,142 | $3.30M | 0.02% | 00.0% | Unchanged |
| Commerce Bank | 17,101 | $3.29M | 0.02% | +911+5.6% | Added |
| Cresset Asset Management, LLC | 16,878 | $3.27M | 0.01% | +710+4.4% | Added |
| JB Capital LLC | 16,975 | $3.26M | 0.14% | −552−3.1% | Reduced |
| Mesirow Financial Investment Management, Inc. | 16,917 | $3.25M | 0.06% | −607−3.5% | Reduced |
| Kinneret Advisory, LLC | 16,730 | $3.25M | 0.28% | −75−0.4% | Reduced |
| Ables, Iannone, Moore & Associates, Inc. | 16,873 | $3.24M | 1.87% | −49−0.3% | Reduced |