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American Tower Corp (AMT) Ownership Data

Short Interest History (%)

This is the historical short interest of American Tower Corp, as measured by the Short Percentage Of Float.

Date Short Interest
July 15, 20151.75
June 30, 20151.66
June 15, 20151.48
May 29, 20151.35
May 15, 20151.25
April 30, 20151.08
April 15, 20151.29
March 31, 20151.36
March 13, 20151.61
February 27, 20151.34
February 13, 20151.28
January 30, 20151.31
January 15, 20151.47
December 31, 20141.37
December 15, 20141.47
November 28, 20141.64
November 14, 20141.59
October 31, 20141.36
October 15, 20141.15
September 30, 20141.21
September 15, 20141.26
August 29, 20141.41
August 15, 20141.47
July 31, 20141.41
July 15, 20141.36
June 30, 20141.32
June 13, 20141.48
May 30, 20141.57
May 15, 20141.56
April 30, 20141.57
April 15, 20141.78
March 31, 20142.04
March 14, 20142.04
February 28, 20141.98
February 14, 20142.12
January 31, 20142.19
January 15, 20141.93
December 31, 20131.51
December 13, 20131.75
November 29, 20131.83
November 15, 20131.74
October 31, 20131.79
October 15, 20131.59
September 30, 20131.87
September 13, 20131.93
August 30, 20131.66
August 15, 20131.64
July 31, 20131.59
July 15, 20131.53
June 28, 20131.29
June 14, 20130.84
May 31, 20130.99
May 15, 20130.93
April 30, 20130.98
April 15, 20130.98
March 28, 20131
March 15, 20131.16
February 28, 20130.99
February 15, 20131.01
January 31, 20130.96
January 15, 20130.9
December 31, 20120.91
December 14, 20120.98
November 30, 20121.05
November 15, 20121
October 31, 20120.91
October 15, 20120.93
September 28, 20120.9
September 14, 20121.02
August 31, 20121
August 15, 20121.02
July 31, 20121.04
July 13, 20121.1
June 29, 20121.14
June 15, 20121.12
May 31, 20121.06
May 15, 20121.08
April 30, 20120.98
April 13, 20120.91
March 30, 20120.91
March 15, 20121.03
February 29, 20121.22
February 15, 20121.33
January 31, 20121.28
January 13, 20121.53
December 30, 20111.29
December 15, 20111.16
November 30, 20111.54
November 15, 20111.55
October 31, 20111.56
October 14, 20111.78
September 30, 20111.55
September 15, 20111.61
August 31, 20111.45
August 15, 20111.05
July 29, 20111.06
July 15, 20111.05
June 30, 20111.07
June 15, 20110.98
May 31, 20111.12
May 13, 20111.11
April 29, 20110.9
April 15, 20110.81
March 31, 20110.93
March 15, 20110.95
February 28, 20110.98
February 15, 20111.39
January 31, 20111.04
January 14, 20111.01
December 31, 20101.14
December 15, 20101.17
November 30, 20101.35
November 15, 20101.22
October 29, 20101.11
October 15, 20101.47
September 30, 20101.93
September 15, 20101.83
August 31, 20102.02
August 13, 20101.98
July 30, 20102.06
July 15, 20102.61
June 30, 20102.28
June 15, 20102.49
May 28, 20101.78
May 14, 20101.56
April 30, 20101.64
April 15, 20101.61
March 31, 20101.63
March 15, 20101.36
February 26, 20101.49
February 12, 20101.53
January 29, 20101.99
January 15, 20102.05
December 31, 20091.97
December 15, 20091.7
November 30, 20092.27
November 13, 20092.15
October 30, 20092.13
October 15, 20092.16
September 30, 20092.24
September 15, 20091.85
August 31, 20091.51
August 14, 20091.73
July 31, 20091.95
July 15, 20092.13
June 30, 20092.21
June 15, 20091.92
May 29, 20091.77
May 15, 20091.57
April 30, 20091.85
April 15, 20091.97
March 31, 20092.09
March 13, 20092.25
February 27, 20092.02
February 13, 20092.05
January 30, 20092.53
January 15, 20092.59
December 31, 20082.88
December 15, 20082.53
November 28, 20082.57
November 14, 20082.81
October 31, 20083.12
October 15, 20083.65
September 30, 20082.48
September 15, 20084.04
August 29, 20083.32
August 15, 20083.41
July 31, 20083.71
July 15, 20084.13
June 30, 20084.52
June 13, 20084.51
May 30, 20083.5
May 15, 20083.73
April 30, 20083.9
April 15, 20083.7
March 31, 20083.82
March 14, 20083.16
February 29, 20083.37
February 15, 20083.12
January 31, 20082.93
January 15, 20083.62
December 31, 20073.51
December 11, 20073.44
November 27, 20074.1
November 9, 20073.14
October 26, 20073.38
October 10, 20073.44
September 25, 20073.99
September 11, 20073.84
August 10, 20074.12
July 10, 20074.9
June 12, 20074.83
May 10, 20074.2
April 10, 20074.17
March 12, 20073.98
February 12, 20074.45
January 9, 20074.94
December 12, 20064.37
November 10, 20064.44
October 10, 20065.45
September 12, 20065.49
August 10, 20065.73
July 11, 20065.67
June 12, 20065.36
May 10, 20064.94
April 10, 20065.79
March 10, 20065.78
February 10, 20066.01
January 10, 20067.07
December 12, 20056.55
November 10, 20056.18
October 11, 20057.3
September 12, 200512.37
August 10, 200512.18
July 12, 200513.63
June 10, 20059.67
May 10, 20059.01
April 12, 20057.09
March 10, 20057.19
February 10, 20056.33
January 11, 20056.86
December 10, 20046.85
November 10, 20048.06
October 12, 20048.17
September 10, 20047.52
August 10, 20047.42
July 12, 20047.66
June 9, 20048.14
May 11, 20048.61
April 12, 20047.01
March 10, 20046.19
February 10, 20046.72
January 12, 20046.25
December 10, 20035.89
November 11, 20036.68
October 10, 20037.23
September 10, 20037
August 12, 20037.9
July 10, 20038.15
June 10, 20037.84
May 12, 200310.76
April 10, 200311.84
March 11, 200312.73
February 11, 200311.91
January 10, 200312.71
December 10, 200212.58
November 12, 200213.53
October 10, 200211.8
September 10, 200210.77
August 12, 200210.61
July 10, 200210.76
June 11, 20029.4
May 10, 20029.13
April 10, 20028.06
March 12, 20028.1
February 12, 20027.06
January 10, 20029.48
December 11, 20017.75
November 12, 20016.55
October 10, 20016.96
September 5, 20016.63
August 10, 20016.64
July 10, 20016.23
June 12, 20016.81
May 10, 20016.45
April 9, 20015.92
March 12, 20016.77
February 12, 20017.4
January 9, 20017.71
December 12, 20008.66
November 10, 20007.24
October 10, 20008.42
September 12, 20007.88
August 10, 20008.16
July 11, 20007.41
June 12, 20008.89
May 10, 200010.96
April 11, 200012.49
March 10, 200012.78
February 10, 200011.9
January 11, 200010.22
December 10, 19999.73
November 10, 19997.68
October 12, 19995.46
September 10, 19992.28
August 10, 19992.23
July 12, 19992.33
June 10, 19992.93
May 11, 19992.61
April 12, 19992.6
February 9, 19994.89
January 8, 19994.29
December 8, 19985.34
November 6, 19984.05
September 8, 19983.97
August 7, 19982.53
July 8, 19982.46
June 8, 19986.79

Institutional Ownership History (%)

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

Date Institutional Ownership
June 30, 2015100
March 31, 201597
December 31, 201497
September 30, 201494
June 30, 201495
March 31, 201496
December 31, 201396
September 30, 201394
June 30, 201394
March 31, 201394
December 31, 201295
September 30, 201294
June 30, 201295
March 31, 201295
December 31, 201179
September 30, 201193
June 30, 201194
March 31, 201194
December 31, 201096
September 30, 201095
June 30, 201098
March 31, 201096
September 30, 200998
September 30, 200797
June 30, 200499
March 31, 200492
December 31, 200392
September 30, 200393
June 30, 200380
March 31, 200381
December 31, 200272
September 30, 200285
June 30, 200273
March 31, 200273
December 31, 200182
September 30, 200183
June 30, 200182
March 31, 200183
December 31, 200082
September 30, 200081
June 30, 200078
March 31, 200078

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
April 30, 20151
March 31, 20151
February 28, 20151
January 31, 20151
December 31, 20141
November 30, 20141
October 31, 20141
September 30, 20141
August 31, 20141
July 31, 20141
June 30, 20141
May 31, 20141
March 31, 20141
February 28, 20141
January 31, 20141
December 31, 20131
November 30, 20131
October 31, 20131
September 30, 20131
August 31, 20131
July 31, 20131
June 30, 20131
May 31, 20131
April 30, 20131
March 31, 20131
January 31, 20131
November 30, 20121
October 31, 20121
September 30, 20121
August 31, 20121
July 31, 20121
June 30, 20121
May 31, 20121
April 30, 20121
March 31, 20121
September 30, 20051
August 31, 20051
July 31, 20051
June 30, 20051
May 31, 20051
April 30, 20051
March 31, 20051
February 28, 20054
January 31, 20054
December 31, 20044
November 30, 20044
October 31, 20044
September 30, 20045
August 31, 20045
July 31, 20045
June 30, 20045
May 31, 20045
April 30, 20045
March 31, 20045
February 29, 20044

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Fred R. LummisDirector311,147less than 0.1%2005-12-31
James D. Taiclet,JrChairman, President and CEO, Director206,471less than 0.1%2015-03-12
Edmund DiSantoEVP, Chief Admin Ofc, GC & Sec118,118less than 0.1%2015-03-12
Steven J. MoskowitzPresident, U.S. Operations114,716less than 0.1%2008-11-26
Amit SharmaN/A95,772less than 0.1%2015-03-12
Thomas A. BartlettEVP, CFO &Treasurer89,471less than 0.1%2015-03-12
William H. HessEVP, Int'l. Operations88,489less than 0.1%2015-07-15
Steven C. MarshallEVP & President, U.S. Tower81,387less than 0.1%2015-03-12
J. Michael Gearon,JrPres., American Tower Int'l.40,745less than 0.1%2005-12-22
Robert J. Meyer,JrSVP, Finance & Corp Controller22,555less than 0.1%2015-03-12

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
T. Rowe Price Associates, Inc.   Premium Plus25,533,0672015-03-316.040.502,403,938
Vanguard Group, Inc.   Premium Plus23,104,0332015-03-315.460.152,175,245
State Street Corp   Premium Plus17,744,9352015-03-314.190.171,670,692
Fidelity Management and Research Company   Premium Plus16,541,7782015-03-313.910.211,557,409
BlackRock Fund Advisors   Premium Plus12,763,4882015-03-313.020.171,201,682
Capital World Investors   Premium Plus10,110,3382015-03-312.390.26951,888
MFS Investment Management K.K.   Premium Plus8,979,1832015-03-312.120.43845,390
Jennison Associates LLC   Premium Plus8,081,9902015-03-311.910.70760,919
Vanguard Total Stock Mkt Idx7,464,5132015-06-301.760.17696,364
Deutsche Asset Mgmt Invst Gesenschaft   Premium Plus7,288,4512015-03-311.721.88686,207

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