SEC 13F Intelligence

Cantillon Capital Management LLC / AMT

Cantillon Capital Management LLC’s American Tower Corp Position

Does Cantillon Capital Management LLC own American Tower Corp (AMT)? Yes — 1.61M shares worth $278M (+1.85% of its 13F portfolio) as of Q1 2026, down from 1.82M shares the prior filed quarter.

Position Value
$278M
Q1 2026
Shares
1.61M
% of Portfolio
+1.85%
Quarters Held
30
currently held

Position History AMT

Reported value by quarter
Q4 ’18: $346MQ4 ’18Q1 ’19: $430MQ2 ’19: $437MQ3 ’19: $470MQ4 ’19: $478MQ4 ’19Q1 ’20: $453MQ2 ’20: $543MQ3 ’20: $502MQ4 ’20: $464MQ4 ’20Q1 ’21: $476MQ2 ’21: $531MQ3 ’21: $513MQ4 ’21: $526MQ4 ’21Q1 ’22: $465MQ2 ’22: $471MQ3 ’22: $393MQ4 ’22: $380MQ4 ’22Q1 ’23: $360MQ2 ’23: $364MQ3 ’23: $307MQ4 ’23: $462MQ4 ’23Q1 ’24: $414MQ2 ’24: $388MQ3 ’24: $451MQ4 ’24: $357MQ4 ’24Q1 ’25: $411MQ2 ’25: $406MQ3 ’25: $349MQ4 ’25: $349MQ4 ’25Q1 ’26: $278Mfilingsflow.com
QuarterSharesValue% of Portfolio
Q1 20261.61M$278M+1.85%
Q4 20251.82M$349M+1.92%
Q3 20251.82M$349M+1.92%
Q2 20251.84M$406M+2.35%
Q1 20251.89M$411M+2.66%
Q4 20241.95M$357M+2.16%
Q3 20241.94M$451M+2.75%
Q2 20242.00M$388M+2.59%
Q1 20242.10M$414M+2.61%
Q4 20232.14M$462M+3.08%
Q3 20231.87M$307M+2.28%
Q2 20231.87M$364M+2.54%
Q1 20231.76M$360M+2.93%
Q4 20221.79M$380M+3.22%
Q3 20221.83M$393M+3.56%
Q2 20221.84M$471M+3.93%
Q1 20221.85M$465M+3.32%
Q4 20211.80M$526M+3.48%
Q3 20211.93M$513M+3.50%
Q2 20211.97M$531M+3.58%
Q1 20211.99M$476M+3.46%
Q4 20202.07M$464M+3.48%
Q3 20202.08M$502M+4.20%
Q2 20202.10M$543M+4.71%
Q1 20202.08M$453M+5.01%
Q4 20192.08M$478M+4.45%
Q3 20192.13M$470M+4.57%
Q2 20192.14M$437M+4.42%
Q1 20192.18M$430M+4.57%
Q4 20182.19M$346M+4.18%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Cantillon Capital Management LLC’s full portfolio or all institutional holders of AMT.