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American Tower Corp (AMT) Ownership Data

Short Interest History (%)

Due to the license agreement change with our data vendor, Short Interest related data is no longer available on GuruFocus website.

Institutional Ownership History (%)

This the Institutional Ownership History of American Tower CorpPeter Lynch prefers to buy companies with low institutional ownership.

Date Institutional Ownership (%)Institutional Ownership (Shares in Mil)
December 31, 201796.8409.06
September 30, 201793.12398.46
June 30, 201794.59405.84
March 31, 201790.87388.01
December 31, 201694.71404.45
September 30, 201696.44410.47
June 30, 201697.12413.10
December 31, 201596.07407.13
September 30, 201597.09411.11
June 30, 201597.7413.54
March 31, 201597.24411.25
December 31, 201496.35382.11
September 30, 201495.09376.87
June 30, 201496.15380.74
March 31, 201496.12380.26
December 31, 201396.35380.46
September 30, 201394.11371.31
June 30, 201393.73370.37
March 31, 201393.97371.71
December 31, 201295.64378.05
September 30, 201294.81375.00
June 30, 201294.64373.71
March 31, 201294.65373.56
December 31, 201116.8466.33
September 30, 20111.576.19
June 30, 20110.210.82
March 31, 20111.254.97
December 31, 20100.190.77
September 30, 20100.180.72
June 30, 20100.10.42
March 31, 20100.251.00
December 31, 20090.110.43
September 30, 20090.20.79
June 30, 20090.130.52
March 31, 20090.20.80
December 31, 20080.210.82
September 30, 20080.080.33
June 30, 20080.080.31
March 31, 20080.10.39
December 31, 20070.050.22
December 31, 20060.020.07
September 30, 20060.020.09
March 31, 20060.010.06
December 31, 20050.010.02
September 30, 20040.380.85
March 31, 20040.40.88
December 31, 20030.561.24
September 30, 20030.691.52
June 30, 20030.521.07
March 31, 20030.510.99
December 31, 20020.330.64

Insider ownership (%)

This is the historical insider ownership of American Tower Corp. It is usually better to buy companies with large insider ownership. The company insiders' interest are more aligned with external shareholders in this case.

Date Insider Ownership (%)Insider Ownership (Shares in Mil)
December 31, 20170.642.69
November 30, 20170.642.69
October 31, 20170.632.69
September 30, 20170.632.69
August 31, 20170.632.69
July 31, 20170.632.68
June 30, 20170.632.68
May 31, 20170.632.68
April 30, 20170.622.67
March 31, 20170.652.78
February 28, 20170.642.74
January 31, 20170.642.73
December 31, 20160.62.55
November 30, 20160.642.73
October 31, 20160.642.73
September 30, 20160.642.73
August 31, 20160.652.74
July 31, 20160.652.75
June 30, 20160.642.74
May 31, 20160.652.74
April 30, 20160.652.74
March 31, 20160.632.67
February 29, 20160.632.67
January 31, 20160.622.63
December 31, 20150.652.74
November 30, 20150.622.63
October 31, 20150.622.63
September 30, 20150.622.63
August 31, 20150.622.63
July 31, 20150.632.65
June 30, 20150.632.65
May 31, 20150.632.65
April 30, 20150.632.65
March 31, 20150.672.65
February 28, 20150.552.19
January 31, 20150.562.20
December 31, 20140.562.20
November 30, 20140.562.20
October 31, 20140.562.20
September 30, 20140.562.21
August 31, 20140.562.21
July 31, 20140.562.22
June 30, 20140.562.22
May 31, 20140.562.22
March 31, 20140.562.22
February 28, 20140.562.22
January 31, 20140.562.20
December 31, 20130.562.20
November 30, 20130.562.20
October 31, 20130.562.20
September 30, 20130.562.20
August 31, 20130.562.20
July 31, 20130.562.20
June 30, 20130.562.20
May 31, 20130.562.20
April 30, 20130.562.20
March 31, 20130.562.20
January 31, 20130.532.10
November 30, 20120.532.10
October 31, 20120.532.10
September 30, 20120.532.11
August 31, 20120.532.11
July 31, 20120.532.11
June 30, 20120.532.11
May 31, 20120.542.13
April 30, 20120.542.13
March 31, 20120.542.13
February 29, 20120.471.86
January 31, 20120.471.85
December 31, 20110.471.85
November 30, 20110.471.85
October 31, 20110.471.86
September 30, 20110.471.87
August 31, 20110.471.87
July 31, 20110.471.87
June 30, 20110.471.87
May 31, 20110.471.87
April 30, 20110.471.87
March 31, 20110.471.87
February 28, 20110.451.79
January 31, 20110.451.79
December 31, 20100.451.79
November 30, 20100.471.87
October 31, 20100.471.87
September 30, 20100.471.87
August 31, 20100.471.87
July 31, 20100.471.87
June 30, 20100.461.87
May 31, 20100.471.87
April 30, 20100.471.87
March 31, 20100.471.88
February 28, 20100.451.82
January 31, 20100.451.82
December 31, 20090.451.82
November 30, 20090.431.73
October 31, 20090.431.73
September 30, 20090.431.73
August 31, 20090.441.73
July 31, 20090.441.73
June 30, 20090.441.76
May 31, 20090.441.76
April 30, 20090.441.75
March 31, 20090.441.75
February 28, 20090.431.71
January 31, 20090.431.71
December 31, 20080.431.71
November 30, 20080.431.71
October 31, 20080.441.71
September 30, 20080.441.71
August 31, 20080.441.73
July 31, 20080.441.73
June 30, 20080.441.73
May 31, 20080.441.73
April 30, 20080.150.60
March 31, 20080.150.60
February 29, 20080.150.60
January 31, 20080.31.20
December 31, 20070.31.20
November 30, 20070.31.20
October 31, 20070.291.17
September 30, 20070.261.08
August 31, 20070.261.08
July 31, 20070.261.08
June 30, 20070.251.06
May 31, 20070.251.06
April 30, 20070.251.06
March 31, 20070.251.06
February 28, 20070.251.06
January 31, 20070.130.54
December 31, 20060.130.55
November 30, 20060.130.55
October 31, 20060.130.55
September 30, 20060.130.55
June 30, 20060.130.55
May 31, 20060.130.55
April 30, 20060.130.55
March 31, 20060.130.55
February 28, 20060.130.55
January 31, 20060.130.55
December 31, 20050.170.68
November 30, 20050.180.72
October 31, 20050.170.69
September 30, 20050.612.49
August 31, 20050.652.59
July 31, 20050.662.63
June 30, 20051.142.64
May 31, 20051.162.68
April 30, 20051.242.85
March 31, 20051.252.88
February 28, 20054.359.93
January 31, 20054.379.97
December 31, 20044.359.96
November 30, 20044.339.89
October 31, 20044.4710.21
September 30, 20044.7910.84
August 31, 20044.610.32
July 31, 20044.7110.57
June 30, 20044.8910.92
May 31, 20044.8910.92
April 30, 20044.8910.92
March 31, 20044.9610.92
February 29, 20043.968.72

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
James D. Taiclet,JrChairman, President and CEO270,707less than 0.1%2017-12-11
Edmund DiSantoEVP, Chief Admin Ofr, GC & Sec141,928less than 0.1%2017-09-29
Amit SharmaEVP, Asia128,213less than 0.1%2017-08-24
Thomas A. BartlettN/A109,107less than 0.1%2017-03-10
William H. HessEVP, Int'l. Operations109,037less than 0.1%2017-04-03
Steven C. MarshallEVP & President, U.S. Tower99,446less than 0.1%2017-06-27
Ms. Joann A. ReedDirector30,358less than 0.1%2017-05-03
Robert J. Meyer,JrSVP, Finance & Corp Controller22,893less than 0.1%2017-04-28
Samme L. ThompsonDirector17,384less than 0.1%2017-03-10
Lara GustavoDirector14,464less than 0.1%2017-03-15

Top Fund Holders

HolderSharesReport Date% of Total
Assets Managed
% of Shares
Outstanding
Market Value($1000)
VANGUARD GROUP INC   Premium Plus29,222,9322017-09-300.19%6.91%3,994,190
BlackRock Inc.   Premium Plus26,425,9212017-09-300.18%6.25%3,611,896
WELLINGTON MANAGEMENT GROUP LLP   Premium Plus22,316,5842017-09-300.70%5.28%3,050,231
PRICE T ROWE ASSOCIATES INC /MD/   Premium Plus21,426,2412017-09-300.50%5.07%2,928,539
STATE STREET CORP   Premium Plus17,927,3592017-09-300.21%4.24%2,451,422
FMR LLC   Premium Plus16,281,0132017-09-300.27%3.85%2,225,289
MASSACHUSETTS FINANCIAL SERVICES CO /MA/   Premium Plus8,325,1812017-09-300.49%1.97%1,137,886
GOLDMAN SACHS GROUP INC   Premium Plus8,209,8632017-09-300.28%1.94%1,122,124
HENDERSON GROUP PLC   Premium Plus7,868,5332017-09-300.69%1.86%1,075,458
Capital World Investors   Premium Plus7,830,7602017-09-300.24%1.85%1,070,308
Chuck Akre Premium6,790,5272017-09-3013.56%1.61%928,129
NORTHERN TRUST CORP   Premium Plus6,696,9272017-09-300.24%1.58%915,336
Ameriprise Financial Inc   Premium Plus6,469,4322017-09-300.43%1.53%884,232
EDGEWOOD MANAGEMENT LLC   Premium Plus6,326,7172017-09-303.97%1.5%864,736
DEUTSCHE BANK AG\   Premium Plus5,197,4662017-09-300.49%1.23%710,383
Standard Life Aberdeen plc   Premium Plus4,079,1522017-09-301.02%0.96%557,537
Bank of New York Mellon Corp   Premium Plus4,001,4562017-09-300.15%0.95%546,920
GEODE CAPITAL MANAGEMENT, LLC   Premium Plus3,976,9842017-09-300.20%0.94%542,414
Clearbridge Investments, LLC   Premium Plus3,753,9012017-09-300.49%0.89%513,083
FRANKLIN RESOURCES INC   Premium Plus3,212,8202017-09-300.22%0.76%439,118

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