Latest Period
Q2 2026
Security Snapshot
AMERICAN TOWER CORP /MA/ - Common Stock (AMT) Institutional Ownership
CUSIP: 03027X100
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
1,724
Shares (Excl. Options)
438,667,376
Price
$163.57
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- Security type / class
- Equity / Common Stock
- Symbol
- AMT on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 438,667,376
- Total 13F value
- $71,852,943,125
- Portfolio coverage rank
- 0.04%
- Share change
- +8,599,219
- Value change
- +$1,344,487,302
- Number of holders
- 1,724
- Shares outstanding
- 466,215,331
- SEC-reported price per share
- $174.46
- Insider filing price
- $174.46
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- AMT - AMERICAN TOWER CORP /MA/ - Common Stock is tracked under CUSIP 03027X100.
- 1724 institutions reported positions in Q2 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 1,753 to 1,724 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $74,415,653,005 to $71,852,943,125.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 1724 institutions filings for Q2 2026.
Security key
03027X100
Latest holder period
Q2 2026
13F holders
1,724
13D/G owners
3
CIK / CUSIP context first
Open Q2 2026 holders
AMT full holder history
AMERICAN TOWER CORP /MA/ SEC filings
AMERICAN TOWER CORP /MA/ company facts
AMERICAN TOWER CORP /MA/ insider transactions
AMERICAN TOWER CORP /MA/ 13D/G history
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 03027X100:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
AMT
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 9.2% | $9,096,034,371 | 43,047,962 | BlackRock, Inc. | 31 Dec 2024 | |||
| VANGUARD CAPITAL MANAGEMENT LLC | 7.6% | $6,082,733,798 | 35,245,879 | Vanguard Capital Management | 31 Mar 2026 | |||
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.9% | $4,783,737,772 | 27,718,958 | Vanguard Portfolio Management | 31 Mar 2026 |
As of 30 Jun 2026, 1,724 institutional investors reported holding 438,667,376 shares of AMERICAN TOWER CORP /MA/ - Common Stock (AMT). This represents 94% of the company’s total 466,215,331 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
58%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9.8% | 45,796,561 | +1.9% | 0.11% | $7,490,943,486 |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.5% | 30,437,771 | +0.25% | 0.11% | $4,978,706,203 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6% | 27,851,812 | +0.93% | 0.21% | $4,555,720,889 |
| STATE STREET CORP | 4.7% | 22,066,202 | +2.9% | 0.11% | $3,647,491,340 |
| GEODE CAPITAL MANAGEMENT, LLC | 3% | 13,838,970 | -0.68% | 0.12% | $2,259,182,138 |
| COHEN & STEERS, INC. | 3% | 13,777,789 | +9.2% | 3.6% | $2,253,635,000 |
| FMR LLC | 2.4% | 11,376,427 | +0.52% | 0.08% | $1,860,842,140 |
| MORGAN STANLEY | 2.1% | 9,610,971 | +0.28% | 0.08% | $1,572,066,723 |
| JPMORGAN CHASE & CO | 1.9% | 8,853,450 | -41% | 0.09% | $1,493,311,624 |
| LAZARD ASSET MANAGEMENT LLC | 1.8% | 8,403,123 | +15% | 2.1% | $1,374,498,829 |
| Invesco Ltd. | 1.5% | 7,068,996 | -2.8% | 0.09% | $1,156,275,619 |
| DEUTSCHE BANK AG\ | 1.4% | 6,701,631 | -14% | 0.32% | $1,096,185,783 |
| Capital World Investors | 1.4% | 6,554,891 | +16% | 0.13% | $1,072,183,521 |
| NORGES BANK | 1.4% | 6,366,685 | 0.1% | $1,041,398,665 | |
| DIMENSIONAL FUND ADVISORS LP | 1.3% | 5,875,655 | +1.1% | 0.17% | $961,164,610 |
| PRINCIPAL FINANCIAL GROUP INC | 1.2% | 5,742,438 | -2.9% | 0.46% | $939,295,758 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.2% | 5,607,388 | +7% | 0.12% | $917,200,456 |
| NORTHERN TRUST CORP | 1.1% | 5,023,525 | -5.9% | 0.1% | $821,697,984 |
| GOLDMAN SACHS GROUP INC | 1.1% | 4,958,386 | +5.6% | 0.09% | $811,043,109 |
| Legal & General Group Plc | 1% | 4,853,850 | +0.58% | 0.17% | $793,944,247 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.99% | 4,603,218 | +9.7% | 0.33% | $752,948,368 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.97% | 4,526,261 | +4.3% | 0.13% | $740,360,512 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 0.9% | 4,211,298 | -12% | 0.07% | $688,843,000 |
| Amundi | 0.87% | 4,045,753 | +5.6% | 0.16% | $661,757,435 |
| BANK OF AMERICA CORP /DE/ | 0.84% | 3,905,537 | -13% | 0.04% | $638,828,739 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 438,667,376 | $71,852,943,125 | +$1,344,487,302 | $163.57 | 1,724 |
| 2026 Q1 | 431,435,297 | $74,415,653,005 | -$840,810,261 | $172.58 | 1,753 |
| 2025 Q4 | 437,973,903 | $76,933,850,659 | +$1,321,588,687 | $175.57 | 1,769 |
| 2025 Q3 | 428,228,939 | $82,357,412,809 | -$1,976,783,962 | $192.32 | 1,781 |
| 2025 Q2 | 435,907,060 | $96,341,434,941 | +$1,423,833,794 | $221.02 | 1,832 |
| 2025 Q1 | 430,404,456 | $93,629,539,451 | -$214,621,650 | $217.60 | 1,823 |
| 2024 Q4 | 432,768,798 | $79,401,083,638 | +$428,265,411 | $183.41 | 1,771 |
| 2024 Q3 | 427,108,097 | $99,172,125,930 | -$659,221,767 | $232.56 | 1,829 |
| 2024 Q2 | 429,616,906 | $83,577,769,576 | +$359,568,447 | $194.38 | 1,744 |
| 2024 Q1 | 429,941,519 | $84,782,909,321 | -$164,160,149 | $197.59 | 1,746 |
| 2023 Q4 | 432,666,078 | $93,371,462,540 | +$1,754,551,095 | $215.88 | 1,772 |
| 2023 Q3 | 423,952,716 | $69,760,172,128 | +$186,388,855 | $164.45 | 1,611 |
| 2023 Q2 | 422,387,585 | $81,966,033,281 | -$52,944,852 | $193.94 | 1,670 |
| 2023 Q1 | 421,907,885 | $86,187,376,054 | -$522,563,920 | $204.34 | 1,684 |
| 2022 Q4 | 424,314,059 | $89,946,923,520 | -$9,265,376 | $211.86 | 1,696 |
| 2022 Q3 | 423,749,608 | $90,997,283,803 | -$384,616,602 | $214.70 | 1,662 |
| 2022 Q2 | 425,396,270 | $108,745,537,457 | +$3,304,481,753 | $255.59 | 1,727 |
| 2022 Q1 | 414,904,336 | $104,197,106,158 | -$422,099,763 | $251.22 | 1,703 |
| 2021 Q4 | 416,441,412 | $121,613,766,733 | +$952,167,635 | $292.50 | 1,773 |
| 2021 Q3 | 412,201,127 | $109,428,346,230 | -$464,958,209 | $265.41 | 1,663 |
| 2021 Q2 | 412,905,993 | $111,543,815,769 | +$3,412,669,013 | $270.14 | 1,637 |
| 2021 Q1 | 400,701,540 | $95,714,148,639 | -$304,022,013 | $239.06 | 1,596 |
| 2020 Q4 | 402,309,717 | $90,240,784,755 | -$306,413,086 | $224.46 | 1,571 |
| 2020 Q3 | 404,008,957 | $97,618,570,098 | -$1,029,759,380 | $241.73 | 1,505 |
| 2020 Q2 | 406,803,128 | $105,112,112,438 | +$191,523,047 | $258.54 | 1,491 |