What does CUSIP 03027X100 represent in this 13F holders report?

CUSIP 03027X100 is the security identifier for AMT - AMERICAN TOWER CORP /MA/ - Common Stock used to aggregate holder disclosures.

How many institutions held AMT - AMERICAN TOWER CORP /MA/ - Common Stock in Q1 2015?

732 institutional investors reported AMT - AMERICAN TOWER CORP /MA/ - Common Stock for Q1 2015. Use the holders table for investor-level position and value details.

- Common Stock (AMT)

CUSIP: 03027X100

Q1 2015 13F Holders as of 31 Mar 2015

Type / Class: Equity / Common Stock
Shares outstanding: 466,215,331
Total 13F shares: 397,194,920
Share change: +24,500,555
Total reported value: $37,413,742,447
Put/Call ratio: 35%
Price per share: $94.15
Number of holders: 732
Value change: +$2,288,498,747
Number of buys: 394
Number of sells: 294

Quarterly Holders Quick Answers

What is CUSIP 03027X100?
CUSIP 03027X100 identifies AMT - AMERICAN TOWER CORP /MA/ - Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2015
Previous quarter: Q4 2014

Recent filing periods for CUSIP 03027X100:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

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 by the holder's primary source 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
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	5.6%	26,052,382	$2,575,278,000	—	31 Dec 2014	13F
VANGUARD GROUP INC	13F	Company	4.5%	21,043,810	$2,080,181,000	—	31 Dec 2014	13F
STATE STREET CORP	13F	Company	3.8%	17,852,107	$1,764,678,000	—	31 Dec 2014	13F
FMR LLC	13F	Company	2.8%	12,929,624	$1,278,094,000	—	31 Dec 2014	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	2.2%	10,398,264	$1,027,868,000	—	31 Dec 2014	13F
Capital World Investors	13F	Company	2.1%	9,815,338	$970,246,000	—	31 Dec 2014	13F
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	13F	Company	2%	9,178,169	$907,262,006	—	31 Dec 2014	13F
DEUTSCHE BANK AG\	13F	Company	1.9%	8,952,912	$884,989,000	—	31 Dec 2014	13F
Invesco Ltd.	13F	Company	1.9%	8,795,681	$869,455,000	—	31 Dec 2014	13F
BlackRock Fund Advisors	13F	Company	1.6%	7,690,753	$760,231,000	—	31 Dec 2014	13F
GOLDMAN SACHS GROUP INC	13F	Company	1.6%	7,579,732	$749,257,000	—	31 Dec 2014	13F
JENNISON ASSOCIATES LLC	13F	Company	1.6%	7,352,505	$726,795,000	—	31 Dec 2014	13F
NORTHERN TRUST CORP	13F	Company	1.4%	6,545,041	$646,977,000	—	31 Dec 2014	13F
Winslow Capital Management, LLC	13F	Company	1.2%	5,706,383	$564,077,000	—	31 Dec 2014	13F
BROOKFIELD Corp /ON/	13F	Company	1.1%	5,114,563	$505,575,000	—	31 Dec 2014	13F
EDGEWOOD MANAGEMENT LLC	13F	Company	1.1%	5,064,777	$500,653,000	—	31 Dec 2014	13F
JANUS HENDERSON INVESTORS US LLC	13F	Company	1.1%	4,928,665	$487,231,000	—	31 Dec 2014	13F
Clearbridge Investments, LLC	13F	Company	1.1%	4,918,240	$486,168,000	—	31 Dec 2014	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	1%	4,716,568	$466,233,000	—	31 Dec 2014	13F
Neuberger Berman Group LLC	13F	Company	0.97%	4,528,995	$447,690,000	—	31 Dec 2014	13F
Bank of New York Mellon Corp	13F	Company	0.91%	4,223,149	$417,458,000	—	31 Dec 2014	13F
abrdn Investment Management Ltd	13F	Company	0.89%	4,146,251	$409,958,000	—	31 Dec 2014	13F
COATUE MANAGEMENT LLC	13F	Company	0.88%	4,111,291	$406,402,000	—	31 Dec 2014	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.88%	4,108,105	$406,091,000	—	31 Dec 2014	13F
AKRE CAPITAL MANAGEMENT LLC	13F	Company	0.86%	4,017,081	$397,088,000	—	31 Dec 2014	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.81%	3,791,447	$374,785,000	—	31 Dec 2014	13F
TCW GROUP INC	13F	Company	0.78%	3,644,829	$360,292,000	—	31 Dec 2014	13F
WADDELL & REED FINANCIAL INC	13F	Company	0.77%	3,586,196	$354,495,000	—	31 Dec 2014	13F
ClearBridge Investments Ltd	13F	Company	0.77%	3,571,903	$353,083,000	—	31 Dec 2014	13F
BlackRock Group LTD	13F	Company	0.75%	3,517,297	$347,685,000	—	31 Dec 2014	13F
NORGES BANK	13F	Company	0.75%	3,501,262	$346,100,000	—	31 Dec 2014	13F
MORGAN STANLEY	13F	Company	0.74%	3,447,105	$340,744,000	—	31 Dec 2014	13F
GENERAL ELECTRIC CO	13F	Company	0.73%	3,392,112	$335,310,000	—	31 Dec 2014	13F
Shinko Asset Management Co., Ltd.	13F	Company	0.68%	3,164,262	$312,787,000	—	31 Dec 2014	13F
FRANKLIN RESOURCES INC	13F	Company	0.67%	3,144,211	$310,807,000	—	31 Dec 2014	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.61%	2,852,482	$281,587,000	—	31 Dec 2014	13F
LASALLE INVESTMENT MANAGEMENT SECURITIES LLC	13F	Company	0.58%	2,695,062	$266,407,000	—	31 Dec 2014	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	0.56%	2,619,176	$258,906,000	—	31 Dec 2014	13F
COHEN & STEERS, INC.	13F	Company	0.54%	2,517,574	$248,862,000	—	31 Dec 2014	13F
CAPITAL GUARDIAN TRUST CO	13F	Company	0.52%	2,430,749	$240,280,000	—	31 Dec 2014	13F
MANAGED ACCOUNT ADVISORS LLC	13F	Company	0.49%	2,274,927	$224,877,000	—	31 Dec 2014	13F
BLACKROCK ADVISORS LLC	13F	Company	0.48%	2,224,718	$219,914,000	—	31 Dec 2014	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.46%	2,161,679	$213,682,000	—	31 Dec 2014	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	0.45%	2,120,073	$209,569,000	—	31 Dec 2014	13F
Legal & General Group Plc	13F	Company	0.43%	2,016,704	$199,422,000	—	31 Dec 2014	13F
ASHMORE WEALTH MANAGEMENT LLC	13F	Company	0.43%	2,000,000	$197,703,000	—	31 Dec 2014	13F
Meritage Group LP	13F	Company	0.4%	1,869,060	$184,757,000	—	31 Dec 2014	13F
Senator Investment Group LP	13F	Company	0.36%	1,685,783	$166,640,000	—	31 Dec 2014	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.36%	1,674,384	$165,513,000	—	31 Dec 2014	13F
UBS Group AG	13F	Company	0.36%	1,666,727	$164,756,000	—	31 Dec 2014	13F

Institutional Holders of AMERICAN TOWER CORP /MA/ - Common Stock (AMT) as of Q1 2015

As of 31 Mar 2015, AMERICAN TOWER CORP /MA/ - Common Stock (AMT) was held by 732 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 397,194,920 shares. The largest 10 holders included PRICE T ROWE ASSOCIATES INC /MD/, VANGUARD GROUP INC, STATE STREET CORP, FMR LLC, DEUTSCHE BANK AG\, BlackRock Institutional Trust Company, N.A., Capital World Investors, GOLDMAN SACHS GROUP INC, MASSACHUSETTS FINANCIAL SERVICES CO /MA/, and BlackRock Fund Advisors. This page lists 732 institutional shareholders reporting positions in this security for the Q1 2015 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2015 vs Q4 2014 Across Filers

Q4 2014 holders

736

Q1 2015 holders

732

Holder diff

-4

Investor	Q4 2014 Shares	Q1 2015 Shares	Share Diff	Share Chg %	Q4 2014 Value $	Q1 2015 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.