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
- −23 vs. Q2 2025
- Shares held
- 429.3M
- −647.6K (−0.2%) vs. Q2 2025
- Total value
- $82.5B
- −$12.4B (−13.1%) vs. Q2 2025
- New holders
- 132
- 648 more added
- Sold out
- 155
- 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 | 1,851 | $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 |
|---|---|---|---|---|---|
| Mesirow Financial Investment Management, Inc. | 16,917 | $3.25M | 0.06% | −607−3.5% | Reduced |
| JB Capital LLC | 16,975 | $3.26M | 0.14% | −552−3.1% | Reduced |
| Cresset Asset Management, LLC | 16,878 | $3.27M | 0.01% | +710+4.4% | Added |
| Commerce Bank | 17,101 | $3.29M | 0.02% | +911+5.6% | Added |
| Omers Administration Corp | 17,142 | $3.30M | 0.02% | 00.0% | Unchanged |
| Carrera Capital Advisors | 17,060 | $3.31M | 0.59% | +811+5.0% | Added |
| Perkins Coie Trust Co | 17,248 | $3.32M | 0.62% | +731+4.4% | Added |
| Natural Investments, LLC | 17,360 | $3.34M | 0.83% | +2,453+16.5% | Added |
| Intact Investment Management Inc. | 17,500 | $3.37M | 0.10% | +7,900+82.3% | Added |
| Northstar Asset Management LLC | 17,557 | $3.38M | 0.72% | −350−2.0% | Reduced |
| Turtle Creek Wealth Advisors, LLC | 17,634 | $3.39M | 0.30% | +2,626+17.5% | Added |
| ProVise Management Group, LLC | 17,716 | $3.41M | 0.25% | −34−0.2% | Reduced |
| Callan Family Office, LLC | 17,721 | $3.41M | 0.11% | −1,063−5.7% | Reduced |
| Value Partners Investments Inc. | 17,899 | $3.44M | 0.28% | +1,200+7.2% | Added |
| Amica Mutual Insurance Co | 18,029 | $3.47M | 0.32% | 00.0% | Unchanged |
| Presima Inc. | 18,210 | $3.50M | 0.96% | 00.0% | Unchanged |
| Dean Investment Associates, LLC | 18,269 | $3.51M | 0.49% | −734−3.9% | Reduced |
| Caisse de Depot Et Placement du Quebec | 18,283 | $3.52M | 0.01% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 18,348 | $3.53M | 0.01% | +870+5.0% | Added |
| Westpac Banking Corp | 18,509 | $3.56M | 0.22% | −3,724−16.7% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 18,537 | $3.57M | 0.01% | −137−0.7% | Reduced |
| Ostrum Asset Management | 18,556 | $3.57M | 0.16% | +384+2.1% | Added |
| Abn Amro Investment Solutions | 18,585 | $3.57M | 0.07% | −1,307−6.6% | Reduced |
| Dynamic Advisor Solutions LLC | 18,939 | $3.64M | 0.11% | −391−2.0% | Reduced |
| Bill Few Associates, Inc. | 18,967 | $3.65M | 0.94% | +1,602+9.2% | Added |
| Diversified Trust Co | 18,982 | $3.65M | 0.07% | +9,688+104.2% | Added |
| Koa Wealth Management, LLC | 19,153 | $3.68M | 2.73% | +4,209+28.2% | Added |
| Intech Investment Management LLC | 19,219 | $3.70M | 0.03% | −3,585−15.7% | Reduced |
| GSI Capital Advisors LLC | 19,269 | $3.71M | 2.09% | −1,568−7.5% | Reduced |
| We Are One Seven, LLC | 19,278 | $3.71M | 0.09% | +3,752+24.2% | Added |
| Account Management LLC | 19,350 | $3.72M | 3.97% | +300+1.6% | Added |
| LDR Capital Management LLC | 19,351 | $3.72M | 5.47% | +4,391+29.4% | Added |
| Timber Creek Capital Management LLC | 19,389 | $3.73M | 0.90% | −87−0.4% | Reduced |
| Nomura Holdings Inc | 19,480 | $3.75M | 0.02% | +18,455+1,800.5% | Added |
| Banque Cantonale Vaudoise | 19,499 | $3.75M | 0.14% | +252+1.3% | Added |
| Ritholtz Wealth Management | 19,532 | $3.76M | 0.07% | −5,790−22.9% | Reduced |
| CWA Asset Management Group, LLC | 19,602 | $3.77M | 0.14% | −688−3.4% | Reduced |
| Jupiter Wealth Management LLC | 19,838 | $3.82M | 1.80% | 00.0% | Unchanged |
| Westwood Holdings Group Inc. | 20,040 | $3.85M | 0.03% | −143,209−87.7% | Reduced |
| Waterloo Capital, L.P. | 20,134 | $3.87M | 0.29% | +9,390+87.4% | Added |
| Empowered Funds, LLC | 20,138 | $3.87M | 0.04% | −9,768−32.7% | Reduced |
| Clearstead Advisors, LLC | 20,177 | $3.88M | 0.06% | −15,223−43.0% | Reduced |
| Brown Brothers Harriman & Co | 20,204 | $3.89M | 0.02% | −2,239−10.0% | Reduced |
| Cape Cod Five Cents Savings Bank | 16,720 | $3.89M | 0.36% | 00.0% | Unchanged |
| E. Ohman J:or Asset Management AB | 20,230 | $3.89M | 0.09% | 00.0% | Unchanged |
| Edgestream Partners, L.P. | 20,307 | $3.91M | 0.11% | +20,307 | New |
| Massmutual Trust Co FSB | 20,310 | $3.91M | 0.10% | −98−0.5% | Reduced |
| Harbor Investment Advisory, LLC | 20,605 | $3.96M | 0.33% | −722−3.4% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 20,637 | $3.97M | 0.10% | −4,348−17.4% | Reduced |
| Hamilton Capital Partners Inc. | 20,728 | $3.99M | 0.17% | +6,582+46.5% | Added |
| AG2R la Mondiale Gestion D'Actifs | 18,137 | $4.01M | 0.21% | 00.0% | Unchanged |
| FRG Family Wealth Advisors LLC | 21,040 | $4.05M | 0.65% | −125−0.6% | Reduced |
| Edgar Lomax Co | 21,045 | $4.05M | 0.32% | −6,115−22.5% | Reduced |
| New Mexico Educational Retirement Board | 21,168 | $4.07M | 0.13% | −700−3.2% | Reduced |
| Hills Bank & Trust Co | 21,170 | $4.07M | 0.24% | −194−0.9% | Reduced |
| Allstate Corp | 21,174 | $4.07M | 0.09% | +16,176+323.6% | Added |
| Aureus Asset Management, LLC | 21,203 | $4.08M | 0.27% | −125,613−85.6% | Reduced |
| Abc Arbitrage SA | 21,280 | $4.09M | 0.40% | +21,280 | New |
| Crestwood Advisors Group LLC | 21,365 | $4.11M | 0.07% | −687−3.1% | Reduced |
| Appleton Partners Inc | 21,626 | $4.16M | 0.28% | −21−0.1% | Reduced |
| Parallel Advisors, LLC | 21,664 | $4.17M | 0.08% | −371−1.7% | Reduced |
| Lockheed Martin Investment Management Co | 21,820 | $4.20M | 0.15% | −790−3.5% | Reduced |
| Tower Research Capital LLC (TRC) | 22,021 | $4.24M | 0.12% | +2,866+15.0% | Added |
| FineMark National Bank & Trust | 22,050 | $4.24M | 0.14% | −515−2.3% | Reduced |
| Family Capital Trust Co | 22,175 | $4.26M | 1.43% | −1,245−5.3% | Reduced |
| Wesbanco Bank Inc | 22,503 | $4.33M | 0.12% | +5,892+35.5% | Added |
| Securian Asset Management, Inc | 22,609 | $4.35M | 0.12% | −1,750−7.2% | Reduced |
| M. Kulyk & Associates, LLC | 22,645 | $4.36M | 0.88% | +884+4.1% | Added |
| Achmea Investment Management B.V. | 22,797 | $4.38M | 0.05% | 00.0% | Unchanged |
| Liberty Capital Management, Inc. | 23,048 | $4.43M | 0.83% | +526+2.3% | Added |
| Johnson Investment Counsel Inc | 23,329 | $4.49M | 0.04% | −1,899−7.5% | Reduced |
| Synovus Financial Corp | 23,372 | $4.50M | 0.05% | −1,057−4.3% | Reduced |
| Gulf International Bank (UK) Ltd | 23,394 | $4.50M | 0.15% | −445−1.9% | Reduced |
| Charter Trust Co | 23,466 | $4.51M | 0.27% | −16−0.1% | Reduced |
| Stevens Capital Management LP | 23,484 | $4.52M | 0.60% | −10,982−31.9% | Reduced |
| Baskin Financial Services Inc. | 23,798 | $4.58M | 0.34% | −93−0.4% | Reduced |
| Chicago Partners Investment Group LLC | 25,109 | $4.59M | 0.12% | −5,192−17.1% | Reduced |
| AE Wealth Management LLC | 23,992 | $4.61M | 0.03% | +1,303+5.7% | Added |
| Ally Financial Inc. | 24,000 | $4.62M | 0.57% | +16,000+200.0% | Added |
| Siemens Fonds Invest GmbH | 24,298 | $4.67M | 0.26% | +1,477+6.5% | Added |
| Virtu Financial LLC | 24,381 | $4.69M | 0.26% | +24,381 | New |
| Ieq Capital, LLC | 24,403 | $4.69M | 0.01% | −9,845−28.7% | Reduced |
| Atlantic Trust, LLC | 24,477 | $4.71M | 0.80% | +9,990+69.0% | Added |
| Norinchukin Bank, The | 24,490 | $4.71M | 0.06% | +233+1.0% | Added |
| Louisiana State Employees Retirement System | 24,600 | $4.73M | 0.08% | −100−0.4% | Reduced |
| Knuff & Co LLC | 24,745 | $4.76M | 1.38% | −144−0.6% | Reduced |
| Hantz Financial Services, Inc. | 24,768 | $4.76M | 0.07% | −1,463−5.6% | Reduced |
| Red Door Wealth Management, LLC | 24,857 | $4.78M | 0.51% | −863−3.4% | Reduced |
| Alta Capital Management LLC | 25,061 | $4.82M | 0.27% | +1,702+7.3% | Added |
| NJ State Employees Deferred Compensation Plan | 25,200 | $4.85M | 0.53% | 00.0% | Unchanged |
| Gamco Investors, Inc. Et Al | 25,291 | $4.86M | 0.05% | −2,290−8.3% | Reduced |
| Heritage Trust Co | 25,305 | $4.87M | 0.52% | +341+1.4% | Added |
| Horizon Investments, LLC | 25,436 | $4.89M | 0.06% | −5,239−17.1% | Reduced |
| BLI - Banque de Luxembourg Investments | 25,500 | $4.96M | 0.14% | +25,500 | New |
| Mercer Global Advisors Inc | 25,823 | $4.97M | 0.01% | +3,131+13.8% | Added |
| Oddo BHF Asset Management SAS | 25,850 | $4.97M | 0.19% | −4,032−13.5% | Reduced |
| Canada Post Corp Registered Pension Plan | 25,771 | $5.01M | 0.22% | 00.0% | Unchanged |
| Tobam | 26,169 | $5.03M | 1.82% | −997−3.7% | Reduced |
| Metis Global Partners, LLC | 26,671 | $5.13M | 0.12% | −655−2.4% | Reduced |
| Rakuten Investment Management, Inc. | 66,226 | $5.16M | 0.02% | +66,226 | New |