AMERICAN TOWER CORP NEW AMT
COM · REIT · CUSIP 03027X100 · ISIN US03027X1000
American communications infrastructure company
- SectorReal estate
- IndustryReal Estate Investment Trusts
- HeadquartersBoston, MA
- Founded1995
- Websiteamericantower.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($189.9m this quarter). Holder counts are more reliable. Shares outstanding: 467.3m as of 2024-10-22, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $183.70. Options: 33 managers hold calls ($364.6m notional), 30 hold puts ($376.4m).
Trends to Q4 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 1,692 |
| Q4 2022 | 1,708 |
| Q1 2023 | 1,703 |
| Q2 2023 | 1,686 |
| Q3 2023 | 1,633 |
| Q4 2023 | 1,800 |
| Q1 2024 | 1,763 |
| Q2 2024 | 1,764 |
| Q3 2024 | 1,847 |
| Q4 2024 | 1,794 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2023 | 868 | 702 |
| Q2 2023 | 806 | 768 |
| Q3 2023 | 758 | 805 |
| Q4 2023 | 790 | 830 |
| Q1 2024 | 867 | 820 |
| Q2 2024 | 827 | 836 |
| Q3 2024 | 851 | 813 |
| Q4 2024 | 689 | 1,008 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2024 | $1.1bn | $555.7m | 0.48 |
| Q2 2024 | $463.2m | $394.6m | 0.85 |
| Q3 2024 | $714.5m | $626.6m | 0.88 |
| Q4 2024 | $364.6m | $376.4m | 1.03 |
Biggest buyers
| BlackRock, Inc. | Added | +4.1m |
| COHEN & STEERS, INC. | Added | +3.4m |
| Capital Research Global Investors | Added | +3.4m |
| Capital World Investors | Added | +3.0m |
| Daiwa Securities Group Inc. | Added | +922.7k |
| VIKING GLOBAL INVESTORS LP | New | +897.3k |
| MACKENZIE FINANCIAL CORP | Added | +818.5k |
| FRANKLIN RESOURCES INC | Added | +742.6k |
| CITADEL ADVISORS LLC | Added | +612.7k |
| FMR LLC | Added | +537.1k |
Biggest sellers
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -3.3m |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | Reduced | -2.3m |
| JPMORGAN CHASE & CO | Reduced | -1.2m |
| Amundi | Reduced | -1.2m |
| AustralianSuper Pty Ltd | Reduced | -1.0m |
| ClearBridge Investments Ltd | Reduced | -885.5k |
| MORGAN STANLEY | Reduced | -816.9k |
| INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | Reduced | -775.7k |
| ALLIANCEBERNSTEIN L.P. | Reduced | -695.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -660.5k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $111.6m608.3k shares |
| CITADEL ADVISORS LLC | Reduced | $63.8m347.6k shares |
| JANE STREET GROUP, LLC | Reduced | $28.8m157.2k shares |
| UBS Group AG | Added | $22.7m123.9k shares |
| SIMPLEX TRADING, LLC | Reduced | $16.3m88.9k shares |
| WOLVERINE TRADING, LLC | Reduced | $16.0m88.1k shares |
| GROUP ONE TRADING LLC | Reduced | $15.0m81.9k shares |
| MILLENNIUM MANAGEMENT LLC | Reduced | $10.2m55.6k shares |
| Squarepoint Ops LLC | Reduced | $10.1m55.3k shares |
| IMC-Chicago, LLC | Added | $9.8m53.4k shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $82.4m449.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $48.7m265.7k shares |
| D. E. Shaw & Co., Inc. | Added | $25.1m136.8k shares |
| BNP PARIBAS FINANCIAL MARKETS | Added | $24.5m1.3k shares |
| WOLVERINE TRADING, LLC | Added | $24.0m131.7k shares |
| UBS Group AG | Added | $22.1m120.6k shares |
| Eisler Capital Management Ltd. | First filing | $19.5m107.8k shares |
| Squarepoint Ops LLC | Added | $17.8m97.2k shares |
| IMC-Chicago, LLC | Added | $13.2m72.2k shares |
| Parallax Volatility Advisers, L.P. | Added | $12.7m69.4k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-02-05 | 9.2% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 7.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-28 | 5.9% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales in Q4 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2023 | 1 | $1.2k | 3 | $4.2m | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 2 | $3.0m | $3.0m |
| Q4 2023 | 0 | — | 2 | $940.9k | $49.5k |
| Q1 2024 | 0 | — | 5 | $7.3m | $6.3m |
| Q2 2024 | 0 | — | 2 | $830.5k | — |
| Q3 2024 | 0 | — | 5 | $24.7m | $21.9m |
| Q4 2024 | 0 | — | 0 | — | — |
None reported in Q4 2024.
Holders, Q4 2024
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.20% of their portfolio | 62.4m $11.4bn | Reduced -110.4k |
| BlackRock, Inc. 0.16% of their portfolio | 43.0m $7.9bn | Added +4.1m |
| STATE STREET CORP 0.15% of their portfolio | 21.1m $3.9bn | Reduced -46.3k |
| COHEN & STEERS, INC. 6.66% of their portfolio | 19.2m $3.5bn | Added +3.4m |
| GEODE CAPITAL MANAGEMENT, LLC 0.16% of their portfolio | 11.3m $2.1bn | Added +129.2k |
| FMR LLC 0.12% of their portfolio | 11.2m $2.1bn | Added +537.1k |
| Capital Research Global Investors 0.32% of their portfolio | 8.6m $1.6bn | Added +3.4m |
| WELLINGTON MANAGEMENT GROUP LLP 0.27% of their portfolio | 8.1m $1.5bn | Reduced -3.3m |
| MORGAN STANLEY 0.10% of their portfolio | 7.8m $1.4bn | Reduced -816.9k |
| DEUTSCHE BANK AG\ 0.51% of their portfolio | 7.1m $1.3bn | Reduced -278.4k |
| JPMORGAN CHASE & CO 0.10% of their portfolio | 6.6m $1.2bn | Reduced -1.2m |
| DIMENSIONAL FUND ADVISORS LP 0.28% of their portfolio | 6.4m $1.2bn | Reduced -50.6k |
| NORGES BANK 0.15% of their portfolio | 6.4m $1.2bn | Added +168.7k |
| Invesco Ltd. 0.20% of their portfolio | 5.9m $1.1bn | Added +455.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.59% of their portfolio | 5.9m $1.1bn | Reduced -226.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.12% of their portfolio | 5.8m $1.1bn | Reduced -660.5k |
| NORTHERN TRUST CORP 0.14% of their portfolio | 5.5m $1.0bn | Added +524.1k |
| AKRE CAPITAL MANAGEMENT LLC 8.73% of their portfolio | 5.5m $1.0bn | Reduced -549.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.18% of their portfolio | 5.3m $975.1m | Added +107.3k |
| FRANKLIN RESOURCES INC 0.26% of their portfolio | 5.2m $947.3m | Added +742.6k |
| GOLDMAN SACHS GROUP INC 0.17% of their portfolio | 4.9m $904.4m | Reduced -240.3k |
| Capital World Investors 0.14% of their portfolio | 4.9m $902.4m | Added +3.0m |
| Nuveen Asset Management, LLC 0.25% of their portfolio | 4.8m $875.5m | Reduced -203.2k |
| AMERIPRISE FINANCIAL INC 0.22% of their portfolio | 4.7m $858.2m | Reduced -517.0k |
| Legal & General Group Plc 0.21% of their portfolio | 4.3m $797.1m | Reduced -55.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.19% of their portfolio | 4.3m $796.8m | Added +233.2k |
| BANK OF AMERICA CORP /DE/ 0.07% of their portfolio | 4.0m $735.4m | Reduced -416.3k |
| Clearbridge Investments, LLC 0.52% of their portfolio | 3.5m $637.6m | Reduced -303.6k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.20% of their portfolio | 3.4m $622.7m | Reduced -142.9k |
| WELLS FARGO & COMPANY/MN 0.14% of their portfolio | 3.2m $588.2m | Reduced -301.0k |
| UBS Group AG 0.12% of their portfolio | 3.0m $551.7m | Reduced -21.7k |
| Bank of New York Mellon Corp 0.10% of their portfolio | 3.0m $549.8m | Added +7.0k |
| ROYAL BANK OF CANADA 0.09% of their portfolio | 2.3m $423.5m | Added +28.5k |
| ALLIANCEBERNSTEIN L.P. 0.14% of their portfolio | 2.2m $403.1m | Reduced -695.6k |
| Amundi 0.13% of their portfolio | 2.1m $376.5m | Reduced -1.2m |
| JANUS HENDERSON GROUP PLC 0.19% of their portfolio | 2.0m $369.8m | Reduced -208.2k |
| Cantillon Capital Management LLC 2.16% of their portfolio | 1.9m $357.2m | Added +10.3k |
| Fisher Asset Management, LLC 0.13% of their portfolio | 1.7m $319.7m | Added +11.4k |
| CIBC Private Wealth Group LLC 0.54% of their portfolio | 1.7m $300.4m | Reduced -101.8k |
| MACKENZIE FINANCIAL CORP 0.13% of their portfolio | 1.6m $296.6m | Added +818.5k |
| California Public Employees Retirement System 0.20% of their portfolio | 1.6m $299.3m | Added +65.6k |
| AMERICAN CENTURY COMPANIES INC 0.16% of their portfolio | 1.6m $284.3m | Added +59.3k |
| NEUBERGER BERMAN GROUP LLC 0.22% of their portfolio | 1.5m $281.4m | Reduced -168.3k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.22% of their portfolio | 1.5m $278.0m | Added +160.5k |
| HSBC HOLDINGS PLC 0.17% of their portfolio | 1.5m $275.0m | Added +226.9k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.25% of their portfolio | 1.4m $263.3m | Reduced -40.3k |
| NORDEA INVESTMENT MANAGEMENT AB 0.27% of their portfolio | 1.4m $260.7m | Added +314.8k |
| LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA 2.32% of their portfolio | 1.4m $269.8m | Reduced -24.9k |
| Mitsubishi UFJ Trust & Banking Corp 0.58% of their portfolio | 1.4m $248.7m | Reduced -276.5k |
| Swiss National Bank 0.16% of their portfolio | 1.3m $242.0m | Reduced -66.5k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.25% of their portfolio | 1.3m $238.8m | Reduced -2.3m |
| Sumitomo Mitsui Trust Group, Inc. 0.16% of their portfolio | 1.3m $235.4m | Added +36.0k |
| Daiwa Securities Group Inc. 0.92% of their portfolio | 1.1m $206.3m | Added +922.7k |
| RHUMBLINE ADVISERS 0.18% of their portfolio | 1.1m $202.4m | Reduced -7.4k |
| US BANCORP \DE\ 0.26% of their portfolio | 1.1m $201.0m | Reduced -50.7k |
| Vontobel Holding Ltd. 0.67% of their portfolio | 1.1m $197.0m | Added +35.1k |
| RAYMOND JAMES FINANCIAL INC 0.07% of their portfolio | 1.1m $193.2m | First filing |
| National Pension Service 0.18% of their portfolio | 1.1m $192.9m | Reduced -7.2k |
| SEI INVESTMENTS CO 0.23% of their portfolio | 995.0k $182.5m | Added +62.4k |
| Magellan Asset Management Ltd 2.00% of their portfolio | 993.6k $182.2m | Added +64.2k |
| M&G PLC 1.12% of their portfolio | 988.7k $180.9m | Added +352.8k |
| Heard Capital LLC 10.45% of their portfolio | 958.1k $175.7m | Added +167.8k |
| 1832 Asset Management L.P. 0.31% of their portfolio | 945.0k $173.3m | Reduced -27.3k |
| Sarasin & Partners LLP 1.89% of their portfolio | 936.0k $171.7m | Added +37.7k |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO 2.00% of their portfolio | 910.7k $167.0m | Reduced -2.4k |
| VIKING GLOBAL INVESTORS LP 0.53% of their portfolio | 897.3k $164.6m | New |
| Capital International Investors 0.03% of their portfolio | 892.1k $163.6m | Reduced -165.0k |
| CANADA LIFE ASSURANCE Co 0.28% of their portfolio | 887.8k $162.6m | Added +224.0k |
| Russell Investments Group, Ltd. 0.22% of their portfolio | 880.3k $161.4m | Reduced -105.1k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.14% of their portfolio | 864.3k $158.5m | Added +28.4k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.39% of their portfolio | 849.3k $155.8m | Added +1.4k |
| BLAIR WILLIAM & CO/IL 0.42% of their portfolio | 790.5k $145.0m | Reduced -5.5k |
| STOREBRAND ASSET MANAGEMENT AS 0.44% of their portfolio | 783.1k $143.6m | Added +91.6k |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.89% of their portfolio | 777.1k $142.5m | Reduced -3.4k |
| BNP PARIBAS FINANCIAL MARKETS 0.11% of their portfolio | 770.0k $141.2m | Added +38.4k |
| CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC 2.50% of their portfolio | 769.7k $141.2m | Added +18.6k |
| CITADEL ADVISORS LLC 0.13% of their portfolio | 761.1k $139.6m | Added +612.7k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.13% of their portfolio | 738.7k $134.9m | Added +63.6k |
| ENVESTNET ASSET MANAGEMENT INC 0.04% of their portfolio | 736.5k $135.1m | Reduced -116.1k |
| SAMLYN CAPITAL, LLC 2.12% of their portfolio | 728.1k $133.5m | Added +397.7k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.16% of their portfolio | 727.2k $133.4m | Reduced -27.2k |
| Aberdeen Group plc 0.24% of their portfolio | 710.3k $129.5m | Added +56.8k |
| Liontrust Investment Partners LLP 1.87% of their portfolio | 704.9k $129.3m | Reduced -27.8k |
| BARCLAYS PLC 0.06% of their portfolio | 703.1k $129.0m | Reduced -286.9k |
| Lansforsakringar Fondforvaltning AB (publ) 0.49% of their portfolio | 702.7k $128.9m | First filing |
| VOYA INVESTMENT MANAGEMENT LLC 0.13% of their portfolio | 700.9k $128.6m | Reduced -354.7k |
| BANK OF MONTREAL /CAN/ 0.06% of their portfolio | 689.6k $126.5m | Reduced -206.6k |
| Corient Private Wealth LP 0.20% of their portfolio | 671.3k $123.1m | Reduced -28.1k |
| LASALLE INVESTMENT MANAGEMENT SECURITIES LLC 5.10% of their portfolio | 658.1k $120.7m | Added +39.5k |
| Point72 Asset Management, L.P. 0.33% of their portfolio | 653.0k $119.8m | Added +429.9k |
| Brookfield Corp /ON/ 0.36% of their portfolio | 638.2k $117.1m | Reduced -72.5k |
| Ensign Peak Advisors, Inc 0.20% of their portfolio | 621.0k $113.9m | Reduced -170.8k |
| DAVENPORT & Co LLC 0.66% of their portfolio | 616.9k $112.8m | Reduced -9.7k |
| Swedbank AB 0.14% of their portfolio | 613.3k $112.5m | Added +10.5k |
| MACQUARIE GROUP LTD 0.13% of their portfolio | 610.2k $108.6m | Reduced -350 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.14% of their portfolio | 577.6k $105.9m | Reduced -915 |
| Focus Partners Wealth 0.14% of their portfolio | 560.2k $105.4m | Added +298.4k |
| DekaBank Deutsche Girozentrale 0.18% of their portfolio | 535.4k $96.3m | Unchanged |
| CITIGROUP INC 0.09% of their portfolio | 517.2k $94.9m | Reduced -103.7k |
| FEDERATED HERMES, INC. 0.20% of their portfolio | 504.2k $92.5m | Reduced -222.9k |