SEC 13F Intelligence

Blair William & Co/Il / AMT

Blair William & Co/Il’s American Tower Corp Position

Does Blair William & Co/Il own American Tower Corp (AMT)? Yes — 470.1K shares worth $81M (+0.23% of its 13F portfolio) as of Q1 2026, down from 678.2K shares the prior filed quarter.

Position Value
$81M
Q1 2026
Shares
470.1K
% of Portfolio
+0.23%
Quarters Held
30
currently held

Position History AMT

Reported value by quarter
Q4 ’18: $83MQ4 ’18Q1 ’19: $110MQ2 ’19: $124MQ3 ’19: $135MQ4 ’19: $142MQ4 ’19Q1 ’20: $136MQ2 ’20: $167MQ3 ’20: $156MQ4 ’20: $151MQ4 ’20Q1 ’21: $169MQ2 ’21: $193MQ3 ’21: $193MQ4 ’21: $217MQ4 ’21Q1 ’22: $184MQ2 ’22: $188MQ3 ’22: $157MQ4 ’22: $151MQ4 ’22Q1 ’23: $145MQ2 ’23: $143MQ3 ’23: $111MQ4 ’23: $152MQ4 ’23Q1 ’24: $150MQ2 ’24: $151MQ3 ’24: $185MQ4 ’24: $145MQ4 ’24Q1 ’25: $169MQ2 ’25: $171MQ3 ’25: $150MQ4 ’25: $119MQ4 ’25Q1 ’26: $81Mfilingsflow.com
QuarterSharesValue% of Portfolio
Q1 2026470.1K$81M+0.23%
Q4 2025678.2K$119M+0.32%
Q3 2025782.0K$150M+0.40%
Q2 2025773.2K$171M+0.47%
Q1 2025777.2K$169M+0.51%
Q4 2024790.5K$145M+0.42%
Q3 2024796.0K$185M+0.54%
Q2 2024774.6K$151M+0.46%
Q1 2024761.4K$150M+0.47%
Q4 2023704.2K$152M+0.52%
Q3 2023677.1K$111M+0.43%
Q2 2023736.9K$143M+0.52%
Q1 2023711.2K$145M+0.58%
Q4 2022713.7K$151M+0.66%
Q3 2022730.7K$157M+0.72%
Q2 2022734.8K$188M+0.83%
Q1 2022734.1K$184M+0.65%
Q4 2021740.3K$217M+0.68%
Q3 2021729.0K$193M+0.66%
Q2 2021715.1K$193M+0.67%
Q1 2021707.6K$169M+0.64%
Q4 2020672.7K$151M+0.55%
Q3 2020646.7K$156M+0.66%
Q2 2020644.2K$167M+0.79%
Q1 2020626.7K$136M+0.85%
Q4 2019621.0K$142M+0.73%
Q3 2019619.3K$135M+0.78%
Q2 2019609.8K$124M+0.71%
Q1 2019564.3K$110M+0.67%
Q4 2018530.2K$83M+0.61%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Blair William & Co/Il’s full portfolio or all institutional holders of AMT.