American Tower Corp /Ma/

BLAIR WILLIAM & CO/IL AMT

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/17/2026

Shares

678,244

Value ($000)

119,079

Weight

0.3%

2013 Q4 - 2025 Q4 (28 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/17/2026	119,079	0.3%	678,244	12/31/2025
2025 Q3	11/12/2025	150,404	0.4%	782,048	9/30/2025
2025 Q2	7/24/2025	170,887	0.5%	773,174	6/30/2025
2025 Q1	5/9/2025	169,116	0.5%	777,189	3/31/2025
2024 Q4	2/12/2025	144,985	0.4%	790,497	12/31/2024
2024 Q3	11/12/2024	185,119	0.5%	796,005	9/30/2024
2024 Q2	8/12/2024	150,570	0.5%	774,615	6/30/2024
2024 Q1	5/9/2024	150,436	0.5%	761,357	3/31/2024
2023 Q4	2/12/2024	152,021	0.5%	704,192	12/31/2023
2023 Q3	11/9/2023	111,357	0.4%	677,146	9/30/2023
2023 Q2	8/11/2023	142,912	0.5%	736,886	6/30/2023
2023 Q1	5/12/2023	145,332	0.6%	711,224	3/31/2023
2022 Q4	2/10/2023	151,208	0.7%	713,714	12/31/2022
2022 Q3	11/9/2022	156,892	0.7%	730,748	9/30/2022
2022 Q2	8/10/2022	187,818	0.8%	734,843	6/30/2022
2022 Q1	5/13/2022	184,429	0.6%	734,131	3/31/2022
2021 Q4	2/14/2022	216,548	0.7%	740,333	12/31/2021
2021 Q3	11/12/2021	193,484	0.7%	728,999	9/30/2021
2021 Q2	8/12/2021	193,177	0.7%	715,099	6/30/2021
2021 Q1	5/13/2021	169,167	0.6%	707,634	3/31/2021
2020 Q4	2/9/2021	150,995	0.6%	672,703	12/31/2020
2020 Q3	11/6/2020	156,339	0.7%	646,749	9/30/2020
2020 Q2	8/12/2020	166,554	0.8%	644,210	6/30/2020
2020 Q1	5/11/2020	136,457	0.9%	626,669	3/31/2020
2019 Q4	2/13/2020	141,247	0.7%	614,597	12/31/2019
2014 Q2	8/1/2014	5,345	0.0%	59,411	6/30/2014
2014 Q1	5/6/2014	4,099	0.0%	50,064	3/31/2014
2013 Q4	2/11/2014	3,397	0.0%	42,564	12/31/2013