Security key
03027X100
AMERICAN TOWER CORP /MA/ - Common Stock (AMT)
CUSIP: 03027X100
Q1 2026 13F Holders as of 31 Mar 2026
- Type / Class
- Equity / Common Stock
- Shares outstanding
- 466,215,331
- Total 13F shares
- 431,142,501
- Share change
- -4,601,338
- Total reported value
- $74,365,120,778
- Put/Call ratio
- 99%
- Price per share
- $172.58
- Number of holders
- 1,730
- Value change
- -$831,300,525
- Number of buys
- 838
- Number of sells
- 788
Report period
Q1 2026
Institutions
1,730
Top holders
10
AMT full security history
Previous quarter: Q4 2025
AMERICAN TOWER CORP /MA/ SEC filings
AMERICAN TOWER CORP /MA/ company facts
AMERICAN TOWER CORP /MA/ 13D/G history
Broader feeds
Reporting periods
Holder history for CUSIP 03027X100
Recent filing periods:
Top shareholders of AMT - AMERICAN TOWER CORP /MA/ - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
|
Company |
9.2%
|
43,047,962
|
$9,096,034,371 | $0 | 31 Dec 2024 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
|
Vanguard Capital Management |
7.6%
|
35,245,879
|
$6,082,733,798 | $0 | 31 Mar 2026 | |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
|
Vanguard Portfolio Management |
5.9%
|
27,718,958
|
$4,783,737,772 | $0 | 31 Mar 2026 | |
| Vondran Steven O |
3/4/5
|
President and CEO, Director |
0.02%
|
108,902
|
$20,494,267 | -$6,309,967 | 10 Mar 2026 | |
| Rodney M. Smith |
3/4/5
|
EVP, CFO & Treasurer |
0.02%
|
92,542
|
$17,415,478 | -$6,596,528 | 10 Mar 2026 | |
| Joann A. Reed |
3/4/5
|
Former Director |
0.01%
|
62,940
|
$13,299,222 | — | 14 May 2025 | |
| Olivier Puech |
3/4/5
|
Former Officer |
0.01%
|
38,144
|
$6,696,972 | — | 02 Jan 2026 | |
| Eugene M. Noel |
3/4/5
|
EVP & Chief Operating Officer |
0.01%
|
34,542
|
$6,500,458 | -$7,872,920 | 10 Mar 2026 | |
| Juan Font |
3/4/5
|
SVP, Pres. & CEO, CoreSite |
0.01%
|
28,352
|
$5,335,562 | -$149,998 | 10 Mar 2026 | |
| Robert Joseph Meyer |
3/4/5
|
SVP & Chief Accounting Officer |
0.01%
|
26,439
|
$4,975,555 | -$831,695 | 10 Mar 2026 | |
| Pamela D. A. Reeve |
3/4/5
|
Director |
0%
|
21,899
|
$4,121,172 | — | 10 Mar 2026 | |
| Richard C. Rossi |
3/4/5
|
EVP & President, U.S. Tower |
0%
|
17,518
|
$3,296,712 | — | 10 Mar 2026 | |
| Craig Macnab |
3/4/5
|
Director |
0%
|
15,315
|
$2,882,129 | — | 10 Mar 2026 | |
| Grace Lieblein |
3/4/5
|
Director |
0%
|
9,141
|
$1,720,244 | — | 10 Mar 2026 | |
| Bruce L. Tanner |
3/4/5
|
Director |
0%
|
6,940
|
$1,306,038 | — | 10 Mar 2026 | |
| Eugene F. Reilly |
3/4/5
|
Director |
0%
|
6,898
|
$1,298,134 | +$994,110 | 10 Mar 2026 | |
| Kenneth R. Frank |
3/4/5
|
Director |
0%
|
6,188
|
$1,164,519 | — | 10 Mar 2026 | |
| Teresa Hillary Clarke |
3/4/5
|
Director |
0%
|
5,307
|
$998,724 | — | 10 Mar 2026 | |
| Rajesh Kalathur |
3/4/5
|
Director |
0%
|
5,107
|
$946,820 | +$494,936 | 10 Mar 2026 | |
| Kelly C. Chambliss |
3/4/5
|
Director |
0%
|
4,426
|
$832,928 | — | 10 Mar 2026 | |
| Neville R. Ray |
3/4/5
|
Director |
0%
|
2,265
|
$426,250 | — | 10 Mar 2026 | |
| VANGUARD GROUP INC |
13F
|
Company |
14%
|
63,757,586
|
$11,193,919,375 | — | 31 Dec 2025 | |
| J. Stern & Co. LLP |
13F
|
Company |
8.1%
|
37,686,978
|
$37,686,978,000 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
4.5%
|
20,987,534
|
$3,719,633,535 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
3.1%
|
14,412,242
|
$2,530,357,622 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.9%
|
13,499,035
|
$2,361,674,915 | — | 31 Dec 2025 | |
| COHEN & STEERS, INC. |
13F
|
Company |
2.7%
|
12,487,087
|
$2,192,460,000 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
2.6%
|
12,018,839
|
$2,110,147,606 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
2.1%
|
9,807,651
|
$1,721,929,724 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
1.5%
|
6,948,190
|
$1,219,893,801 | — | 31 Dec 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
1.5%
|
6,909,301
|
$1,213,065,976 | — | 31 Dec 2025 | |
| NORGES BANK |
13F
|
Company |
1.4%
|
6,670,729
|
$1,171,179,891 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.3%
|
6,283,130
|
$1,103,149,832 | — | 31 Dec 2025 | |
| LAZARD ASSET MANAGEMENT LLC |
13F
|
Company |
1.3%
|
6,085,163
|
$1,068,371,954 | — | 31 Dec 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
1.3%
|
6,038,061
|
$1,060,102,709 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
1.2%
|
5,666,920
|
$994,943,000 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1.1%
|
5,353,004
|
$939,826,913 | — | 31 Dec 2025 | |
| FRANKLIN RESOURCES INC |
13F
|
Company |
1.1%
|
5,338,399
|
$937,262,712 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
1.1%
|
5,102,069
|
$895,770,254 | — | 31 Dec 2025 | |
| Legal & General Group Plc |
13F
|
Company |
1%
|
4,873,695
|
$855,674,632 | — | 31 Dec 2025 | |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
|
Company |
0.92%
|
4,269,144
|
$749,533,612 | — | 31 Dec 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.91%
|
4,254,727
|
$747,002,420 | — | 31 Dec 2025 | |
| Capital World Investors |
13F
|
Company |
0.91%
|
4,221,091
|
$741,096,947 | — | 31 Dec 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.87%
|
4,040,337
|
$709,444,846 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.85%
|
3,972,648
|
$697,477,734 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.85%
|
3,944,763
|
$692,582,143 | — | 31 Dec 2025 | |
| Capital Research Global Investors |
13F
|
Company |
0.84%
|
3,922,588
|
$688,688,775 | — | 31 Dec 2025 | |
| Capital International Investors |
13F
|
Company |
0.83%
|
3,871,368
|
$679,696,080 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.83%
|
3,862,380
|
$678,118,028 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.8%
|
3,734,921
|
$655,740,079 | — | 31 Dec 2025 |
Institutional Holders of AMERICAN TOWER CORP /MA/ - Common Stock (AMT) as of Q1 2026
As of 31 Mar 2026,
AMERICAN TOWER CORP /MA/ - Common Stock (AMT) was held by
1,730 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
431,142,501 shares.
The largest 10 holders included
BlackRock, Inc., VANGUARD CAPITAL MANAGEMENT LLC, VANGUARD PORTFOLIO MANAGEMENT LLC, STATE STREET CORP, JPMORGAN CHASE & CO, GEODE CAPITAL MANAGEMENT, LLC, COHEN & STEERS, INC., FMR LLC, MORGAN STANLEY, and DEUTSCHE BANK AG\.
This page lists
1,730
institutional shareholders reporting positions in this security
for the Q1 2026 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
1,767
Q1 2026 holders
1,730
Holder diff
-37
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q1 2026 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.