American Tower Corp. (AMT)

Sector:Technology
Super Investor Stats:
Ownership count:6
Ownership rank:66
% of all portfolios:0.179%
Hold Price * :$197.59
History Portfolio Manager Activity ▼ Share change % change to portfolio
Q4  2016
≡ Thomas Gayner - Markel Group Add 600.00% 12,000 0.03
≡ William Von Mueffling - Cantillon Capital Management Add 148.45% 1,683,925 2.49
≡ Chuck Akre - Akre Capital Management Add 6.36% 400,654 0.79
Q3  2016
≡ Thomas Gayner - Markel Group Buy 2,000 0.01
≡ Chuck Akre - Akre Capital Management Reduce 0.03% 1,690 0.00
≡ William Von Mueffling - Cantillon Capital Management Reduce 0.34% 3,900 0.01
Q2  2016
≡ William Von Mueffling - Cantillon Capital Management Add 50.58% 382,360 0.73
≡ Chuck Akre - Akre Capital Management Reduce 0.17% 10,849 0.02
≡ Thomas Gayner - Markel Group Sell 100.00% 20,000 0.05
Q1  2016
≡ Chuck Akre - Akre Capital Management Add 0.07% 4,359 0.01
≡ William Von Mueffling - Cantillon Capital Management Buy 755,900 1.35
Q4  2015
≡ Chuck Akre - Akre Capital Management Add 0.09% 5,523 0.01
Q3  2015
≡ Thomas Gayner - Markel Group Add 150.00% 12,000 0.03
≡ Chuck Akre - Akre Capital Management Add 19.52% 1,029,479 2.13
Q2  2015
≡ Chuck Akre - Akre Capital Management Add 30.14% 1,221,461 2.79
≡ Thomas Gayner - Markel Group Buy 8,000 0.02
Q1  2015
≡ Chuck Akre - Akre Capital Management Add 0.88% 35,472 0.09
Q4  2014
≡ Chuck Akre - Akre Capital Management Reduce 0.01% 290 0.00
Q3  2014
≡ Chuck Akre - Akre Capital Management Reduce 0.18% 7,225 0.02
Q2  2014
≡ Chuck Akre - Akre Capital Management Reduce 0.06% 2,525 0.01
Q1  2014
≡ Chuck Akre - Akre Capital Management Add 21.07% 700,745 1.84
Q4  2013
≡ Chuck Akre - Akre Capital Management Add 17.59% 497,640 1.47
Q3  2013
≡ Chuck Akre - Akre Capital Management Add 48.09% 918,556 2.91
Q2  2013
≡ Chuck Akre - Akre Capital Management Add 13.05% 220,507 0.73
Q1  2013
≡ Chuck Akre - Akre Capital Management Reduce 0.54% 9,096 0.04
Q4  2012
≡ Chuck Akre - Akre Capital Management Reduce 2.65% 46,305 0.26
Q3  2012
≡ Chuck Akre - Akre Capital Management Reduce 0.15% 2,585 0.01
Q2  2012
≡ Chuck Akre - Akre Capital Management Add 3.56% 60,050 0.34
Q1  2012
≡ Chuck Akre - Akre Capital Management Add 21.67% 300,535 1.97
Q4  2011
≡ Chuck Akre - Akre Capital Management Add 1.07% 14,724 0.14
≡ Thomas Russo - Gardner Russo & Quinn Sell 100.00% 71,330 0.08
Q3  2011
≡ Chuck Akre - Akre Capital Management Add 3.14% 41,830 0.41
≡ Stephen Mandel - Lone Pine Capital Sell 100.00% 3,413,095 1.39
Q2  2011
≡ Stephen Mandel - Lone Pine Capital Buy 3,413,095 1.39
≡ Thomas Russo - Gardner Russo & Quinn Reduce 0.10% 70 0.00
≡ Chuck Akre - Akre Capital Management Reduce 4.21% 58,485 0.57
Q1  2011
≡ Chuck Akre - Akre Capital Management Add 8.03% 103,230 1.08
Q4  2010
≡ Chuck Akre - Akre Capital Management Add 19.96% 213,926 2.41
≡ Thomas Russo - Gardner Russo & Quinn Reduce 0.08% 60 0.00
Q3  2010
≡ Chuck Akre - Akre Capital Management Add 0.21% 2,240 0.03
≡ Thomas Russo - Gardner Russo & Quinn Reduce 5.77% 4,375 0.01
Q2  2010
≡ Thomas Russo - Gardner Russo & Quinn Reduce 0.03% 25 0.00
≡ Chuck Akre - Akre Capital Management Reduce 1.42% 15,435 0.21
Q1  2010
≡ Chuck Akre - Akre Capital Management Reduce 17.17% 224,967 2.94
Q4  2009
≡ Thomas Russo - Gardner Russo & Quinn Reduce 0.65% 500 0.00
Q3  2009
≡ Thomas Russo - Gardner Russo & Quinn Reduce 0.18% 140 0.00
Q2  2009
≡ Thomas Russo - Gardner Russo & Quinn Reduce 1.67% 1,300 0.00

* "Hold Price" is the last known price at which an investor still held a security. It is the closing price of the security as of the portfolio date (quarter end). This value is only provided when a security is owned by at least two investors. In the case of reporting dates being different, a weighted average price is calculated.