AMERICAN TOWER CORP (AMT)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
Institutions report 440,070,658 shares against 465,960,048 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $7.5B | 45,796,561 | 0.11% | 8q | +1.9%+$137.8M |
| VANGUARD CAPITAL MANAGEMENT LLC | $5.0B | 30,437,771 | 0.11% | 2q | HELD |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $4.6B | 27,851,812 | 0.21% | 2q | +0.9%+$41.8M |
| STATE STREET CORP | $3.6B | 22,066,202 | 0.11% | 31q | +2.9%+$104.4M |
| GEODE CAPITAL MANAGEMENT, LLC | $2.3B | 13,838,970 | 0.12% | 31q | -0.7%-$15.5M |
| COHEN & STEERS, INC. | $2.3B | 13,777,789 | 3.56% | 31q | +9.2%+$189.4M |
| FMR LLC | $1.9B | 11,376,427 | 0.08% | 31q | +0.5%+$9.7M |
| MORGAN STANLEY | $1.6B | 9,610,971 | 0.08% | 35q | HELD |
| JPMORGAN CHASE & CO | $1.5B incl. $14.8M options CALL | 8,853,450 | 0.08% | 31q | -41.5%-$1.1B |
| LAZARD ASSET MANAGEMENT LLC | $1.4B | 8,403,123 | 2.08% | 46q | +14.7%+$176.2M |
| Invesco Ltd. | $1.2B | 7,068,996 | 0.09% | 31q | -2.8%-$33.7M |
| DEUTSCHE BANK AG\ | $1.1B | 6,701,631 | 0.32% | 34q | -13.7%-$174.6M |
| Capital World Investors | $1.1B | 6,554,891 | 0.13% | 31q | +15.6%+$145.1M |
| NORGES BANK | $1.0B | 6,366,685 | 0.10% | 32q | -4.6%-$49.7M |
| DIMENSIONAL FUND ADVISORS LP | $961.2M | 5,875,655 | 0.17% | 31q | +1.1%+$10.6M |
| PRINCIPAL FINANCIAL GROUP INC | $939.3M | 5,742,438 | 0.46% | 31q | -2.9%-$28.2M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $917.2M | 5,607,388 | 0.12% | 31q | +7.0%+$60.0M |
| NORTHERN TRUST CORP | $821.7M | 5,023,525 | 0.10% | 31q | -5.9%-$51.7M |
| GOLDMAN SACHS GROUP INC | $812.5M incl. $1.5M options CALL | 4,958,386 | 0.07% | 31q | +5.6%+$42.8M |
| Legal & General Group Plc | $793.9M | 4,853,850 | 0.17% | 31q | +0.6%+$4.6M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $752.9M | 4,603,218 | 0.33% | 10q | +9.7%+$66.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $740.4M | 4,526,261 | 0.13% | 31q | +4.3%+$30.5M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $688.8M | 4,211,298 | 0.07% | 31q | -11.8%-$92.1M |
| Amundi | $661.8M | 4,045,753 | 0.16% | 21q | +5.6%+$35.2M |
| BANK OF AMERICA CORP /DE/ | $638.8M | 3,905,537 | 0.04% | 31q | -13.4%-$99.1M |
| Clearbridge Investments, LLC | $612.2M | 3,742,617 | 0.51% | 31q | +1.6%+$9.3M |
| WELLS FARGO & COMPANY/MN | $560.8M incl. $1.3M options CALL | 3,420,232 | 0.09% | 31q | -2.3%-$13.4M |
| UBS Group AG | $539.0M incl. $6.9M options CALL+PUT | 3,253,371 | 0.07% | 31q | -6.7%-$38.9M |
| Bank of New York Mellon Corp | $500.0M | 3,056,891 | 0.08% | 31q | +10.2%+$46.4M |
| AMERIPRISE FINANCIAL INC | $491.7M | 3,005,811 | 0.10% | 31q | -9.2%-$49.9M |
| Capital Research Global Investors | $478.0M | 2,922,539 | 0.07% | 31q | -28.8%-$193.1M |
| VANGUARD FIDUCIARY TRUST CO | $434.4M | 2,655,895 | 0.10% | 2q | -1.6%-$7.2M |
| Nuveen, LLC | $430.5M | 2,631,606 | 0.10% | 6q | -32.3%-$205.7M |
| FEDERATED HERMES, INC. | $426.7M | 2,608,858 | 0.61% | 31q | -5.3%-$24.1M |
| AQR CAPITAL MANAGEMENT LLC | $402.4M | 2,460,401 | 0.14% | 31q | +328.6%+$308.5M |
| FRANKLIN RESOURCES INC | $395.6M | 2,418,344 | 0.09% | 31q | -27.7%-$151.3M |
| MILLENNIUM MANAGEMENT LLC | $366.1M incl. $7.8M options CALL+PUT | 2,190,378 | 0.13% | 31q | +114.5%+$195.4M |
| NORDEA INVESTMENT MANAGEMENT AB | $354.8M | 2,170,273 | 0.29% | 31q | +6.1%+$20.5M |
| ROYAL BANK OF CANADA | $348.5M | 2,130,554 | 0.05% | 31q | +29.5%+$79.4M |
| JANE STREET GROUP, LLC | $338.2M incl. $88.7M options CALL+PUT | 1,524,990 | 0.03% | 31q | +2316.7%+$324.2M |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | $336.5M | 2,057,200 | 1.02% | 4q | +29.7%+$77.1M |
| CITADEL ADVISORS LLC | $324.7M incl. $100.4M options CALL+PUT | 1,371,292 | 0.04% | 31q | +56.4%+$117.1M |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $306.2M | 1,872,067 | 0.24% | 31q | -19.2%-$72.6M |
| HSBC HOLDINGS PLC | $298.8M | 1,821,488 | 0.12% | 31q | +15.8%+$40.8M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $292.9M | 1,790,526 | 0.35% | 9q | +53.5%+$102.0M |
| ONTARIO TEACHERS PENSION PLAN BOARD | $291.9M | 1,784,357 | 1.85% | new | NEW |
| CANADA PENSION PLAN INVESTMENT BOARD | $291.4M | 1,781,306 | 0.16% | 31q | -25.4%-$99.0M |
| RAYMOND JAMES FINANCIAL INC | $258.9M | 1,582,804 | 0.07% | 7q | +2.0%+$5.1M |
| National Pension Service | $253.8M | 1,551,870 | 0.16% | 31q | +1.2%+$3.0M |
| CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC | $238.6M | 1,458,711 | 3.32% | 31q | +31.4%+$57.0M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $232.0M incl. $182.7M options CALL+PUT | 300,908 | 0.02% | 31q | +88.7%+$109.1M |
| Magellan Asset Management Ltd | $230.0M | 1,406,263 | 5.14% | 31q | -6.5%-$15.9M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | $223.9M | 1,368,799 | 0.22% | 31q | +74.7%+$95.7M |
| CIBC Bancorp USA Inc. | $220.1M | 1,344,695 | 0.27% | 3q | -1.0%-$2.2M |
| MARSHALL WACE, LLP | $219.7M incl. $16.4K options CALL | 1,343,001 | 0.17% | 3q | +78.8%+$96.8M |
| Swiss National Bank | $215.0M | 1,314,600 | 0.11% | 31q | -4.3%-$9.7M |
| AMERICAN CENTURY COMPANIES INC | $210.1M | 1,284,437 | 0.09% | 31q | -4.8%-$10.6M |
| Qube Research & Technologies Ltd | $192.6M incl. $4.2M options CALL+PUT | 1,151,749 | 0.18% | 13q | +7134.1%+$189.9M |
| BNP PARIBAS FINANCIAL MARKETS | $190.8M incl. $817.9K options PUT | 1,161,390 | 0.07% | 31q | -4.2%-$8.4M |
| Sumitomo Mitsui Trust Group, Inc. | $190.2M | 1,162,978 | 0.11% | 31q | -4.7%-$9.4M |
| Capital International Investors | $187.5M | 1,146,539 | 0.04% | 31q | HELD |
| SG Americas Securities, LLC | $186.6M | 1,140,895 | 0.10% | 31q | -17.5%-$39.6M |
| Mitsubishi UFJ Asset Management Co., Ltd. | $186.1M | 1,138,035 | 0.10% | 31q | +6.8%+$11.8M |
| LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA | $185.1M | 1,131,412 | 1.80% | 31q | -7.0%-$13.9M |
| ENVESTNET ASSET MANAGEMENT INC | $180.5M | 1,103,567 | 0.04% | 31q | +6.7%+$11.4M |
| BARCLAYS PLC | $178.5M | 1,091,471 | 0.03% | 31q | -13.1%-$26.9M |
| M&G PLC | $174.1M | 1,061,449 | 0.87% | 10q | -4.8%-$8.9M |
| DAVENPORT & Co LLC | $171.7M | 1,049,635 | 0.84% | 31q | +2.2%+$3.7M |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO | $170.0M | 1,039,175 | 1.60% | 31q | +12.8%+$19.3M |
| D. E. Shaw & Co., Inc. | $168.2M | 1,028,414 | 0.08% | 31q | -9.1%-$16.9M |
| CANADA LIFE ASSURANCE Co | $167.6M | 1,026,627 | 0.27% | 31q | HELD |
| NEUBERGER BERMAN GROUP LLC | $164.5M | 1,005,501 | 0.11% | 31q | -5.9%-$10.4M |
| Vanguard Global Advisers, LLC | $164.4M | 1,005,269 | 0.08% | 2q | -1.8%-$3.1M |
| CITIGROUP INC | $163.7M incl. $28.1M options CALL+PUT | 828,777 | 0.05% | 31q | +30.8%+$38.5M |
| California Public Employees Retirement System | $162.4M | 993,150 | 0.09% | 31q | +5.9%+$9.0M |
| Man Group plc | $161.8M | 989,462 | 0.26% | 19q | +19.8%+$26.7M |
| RHUMBLINE ADVISERS | $157.3M | 961,930 | 0.12% | 31q | -3.3%-$5.4M |
| Russell Investments Group, Ltd. | $153.9M | 937,745 | 0.14% | 31q | HELD |
| SEI INVESTMENTS CO | $150.4M | 919,264 | 0.13% | 31q | +6.0%+$8.5M |
| VANGUARD ASSET MANAGEMENT, Ltd | $149.8M | 916,093 | 0.10% | 2q | +12.7%+$16.9M |
| Aberdeen Group plc | $145.3M | 888,237 | 0.20% | 31q | +4.2%+$5.8M |
| STOREBRAND ASSET MANAGEMENT AS | $141.7M | 866,530 | 0.35% | 26q | +8.6%+$11.3M |
| LPL Financial LLC | $141.2M | 863,324 | 0.03% | 31q | +1.7%+$2.3M |
| Point72 Asset Management, L.P. | $140.1M incl. $441.6K options CALL+PUT | 853,670 | 0.15% | 15q | -29.2%-$57.7M |
| Sarasin & Partners LLP | $139.0M | 849,693 | 1.63% | 31q | -1.6%-$2.2M |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | $138.8M | 848,826 | 0.67% | 31q | -7.6%-$11.4M |
| Fisher Asset Management, LLC | $135.5M | 828,628 | 0.04% | 25q | -52.3%-$148.5M |
| Alyeska Investment Group, L.P. | $135.5M | 828,424 | 0.35% | 2q | +172.7%+$85.8M |
| Heard Capital LLC | $131.6M | 804,848 | 5.63% | 27q | -27.6%-$50.3M |
| WELLINGTON MANAGEMENT GROUP LLP | $129.6M | 792,311 | 0.02% | 31q | +6.0%+$7.3M |
| US BANCORP \DE\ | $128.0M | 782,414 | 0.14% | 31q | -4.2%-$5.6M |
| ALLIANCEBERNSTEIN L.P. | $121.1M | 701,431 | 0.04% | 31q | +6.9%+$7.8M |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $117.0M | 715,369 | 0.11% | 31q | +4.9%+$5.5M |
| LASALLE INVESTMENT MANAGEMENT SECURITIES LLC | $113.7M | 695,301 | 4.05% | 31q | +7.3%+$7.7M |
| PRUDENTIAL FINANCIAL INC | $105.2M | 643,292 | 0.11% | 34q | +26.6%+$22.1M |
| Altshuler Shaham Ltd | $99.8M | 610,000 | 1.24% | new | NEW |
| WORLDQUANT MILLENNIUM ADVISORS LLC | $94.6M | 578,111 | 0.32% | 5q | +316.3%+$71.8M |
| NATIONAL BANK OF CANADA /FI/ | $94.4M | 576,969 | 0.07% | 19q | +37.3%+$25.7M |
| DekaBank Deutsche Girozentrale | $91.8M | 535,381 | 0.15% | 31q | HELD |
| Universal- Beteiligungs- und Servicegesellschaft mbH | $91.1M | 555,473 | 0.14% | 7q | +37.6%+$24.9M |
Showing the largest 100 of 1,768 reported holders.
Q2 2026 in brief
In Q2 2026, 1,768 managers that file Form 13F reported holding American Tower Corp (AMT), $72.7B in all, or about 94% of the shares outstanding. 173 managers opened a position and 175 sold out completely, against 1,770 holders the quarter before. Largest holders: Blackrock, Inc., Vanguard Capital Management Llc and Vanguard Portfolio Management Llc. Largest new positions: Ontario Teachers Pension Plan Board ($291.9M), Altshuler Shaham Ltd ($99.8M) and Grs Advisors, Llc ($88.9M).
Q2 2026 is the latest quarter whose 13F deadline has passed. A 13F shows long US stock positions at quarter end, filed up to 45 days later; an adviser and a sub-adviser can both report the same shares.
Tender offers and delisting
Schedules TO, 13E-3 and 14D-9 and Form 25 filed in the last 180 days. Price a share is read from the filing itself where it states one plainly; a marker means we found no figure we could stand behind, and the reason is on it.
| Filed | What | Filed by | Price a share | Source |
|---|---|---|---|---|
| 2026-05-22 | Delisting notice from the exchange | NEW YORK STOCK EXCHANGE LLC | - | filing |
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-09-18 | 2026-09-17 | Directors or officers departed or appointed | filing |
| 2026-09-14 | 2026-09-14 | Material agreement entered | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-29 | Meyer Robert Joseph | SVP & Advisor to the CFO | Sold | 5,000 | $894.4K |
| 2026-08-21 | Kalathur Rajesh | Director | Bought | 2,829 | $500.7K |
| 2026-07-29 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Sold | 1,106 | $193.5K |
| 2026-07-28 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Sold | 685 | $116.1K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 615 | $2.9B | 17,907,425 | 52 | 222 | 220 | 0.0% |
| Q2 2026 | 1,768 | $72.7B | 440,070,658 | 156 | 659 | 640 | 0.8% |
| Q1 2026 | 1,770 | $75.2B | 432,059,221 | 126 | 687 | 618 | 0.9% |
| Q4 2025 | 1,792 | $78.3B | 441,016,315 | 100 | 548 | 790 | 1.0% |
| Q3 2025 | 1,811 | $86.7B | 445,894,685 | 115 | 608 | 695 | 1.1% |
| Q2 2025 | 1,871 | $98.1B | 438,282,776 | 120 | 672 | 673 | 1.3% |
| Q1 2025 | 1,865 | $96.5B | 438,400,076 | 178 | 657 | 700 | 1.1% |
| Q4 2024 | 1,803 | $80.8B | 436,032,941 | 81 | 568 | 762 | 0.9% |
| Q3 2024 | 1,862 | $101.6B | 431,958,334 | 179 | 624 | 658 | 1.3% |
| Q2 2024 | 1,770 | $85.4B | 434,974,242 | 129 | 651 | 662 | 1.0% |
| Q1 2024 | 1,775 | $91.8B | 456,753,351 | 121 | 697 | 614 | 1.9% |
| Q4 2023 | 1,809 | $97.9B | 444,311,423 | 180 | 574 | 691 | 2.0% |
| Q3 2023 | 1,638 | $71.7B | 425,021,522 | 97 | 605 | 624 | 2.5% |
| Q2 2023 | 1,695 | $83.6B | 425,398,008 | 94 | 652 | 602 | 1.3% |
| Q1 2023 | 1,715 | $89.5B | 432,080,372 | 120 | 696 | 555 | 1.3% |
| Q4 2022 | 1,723 | $92.0B | 428,428,554 | 104 | 581 | 673 | 1.4% |
| Q3 2022 | 1,667 | $429.7B | 2,277,900,561 | 93 | 610 | 549 | 0.3% |
| Q2 2022 | 1,738 | $587.1B | 2,743,001,391 | 131 | 658 | 561 | 0.2% |
| Q1 2022 | 1,722 | $633.9B | 2,804,768,098 | 84 | 686 | 586 | 0.2% |
| Q4 2021 | 1,791 | $400.7B | 1,773,800,629 | 112 | 716 | 444 | 0.6% |
| Q3 2021 | 1,667 | $547.2B | 2,365,858,440 | 106 | 665 | 472 | 0.2% |
| Q2 2021 | 1,648 | $291.5B | 1,373,367,373 | 141 | 672 | 446 | 0.4% |
| Q1 2021 | 1,601 | $281.2B | 1,490,451,561 | 139 | 684 | 485 | 0.6% |
| Q4 2020 | 1,583 | $345.6B | 2,454,491,394 | 97 | 644 | 485 | 0.4% |
| Q3 2020 | 1,519 | $303.5B | 2,364,532,882 | 89 | 632 | 481 | 0.4% |
| Q2 2020 | 1,508 | $299.8B | 1,487,860,878 | 152 | 588 | 483 | 0.3% |
| Q1 2020 | 1,438 | $300.7B | 1,542,722,671 | 141 | 548 | 501 | 0.3% |
| Q4 2019 | 1,385 | $266.9B | 1,376,950,499 | 85 | 487 | 401 | 2.1% |
| Q3 2019 | 1,309 | $235.2B | 1,738,847,544 | 92 | 477 | 439 | 0.6% |
| Q2 2019 | 1,281 | $225.3B | 1,251,105,654 | 97 | 404 | 461 | 0.9% |
| Q1 2019 | 1,244 | $229.5B | 1,707,835,995 | 115 | 445 | 414 | 0.5% |
| Q4 2018 | 1,184 | $200.9B | 1,547,964,126 | 12 | 22 | 19 | 0.5% |