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Livermore
Livermore
ZHEN

SEI Investments Co

SEC CIK
0000350894
Latest filing
Aug 14, 2026

AMT holding history

American Tower Corp in every 13F filed by SEI Investments Co, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

AMT overviewAll 13F holders of AMTFull Q2 2026 holdings

Shares (Q2 2026)
919,264
Value
$150.4M
% of portfolio
0.1%
Quarters held
22
Since Q1 2021
Holdings of AMT by SEI Investments Co, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026919,264$150.4M0.1%+51,846+6.0%AddedHolders
Q1 2026867,418$149.7M0.1%+63,924+8.0%AddedHolders
Q4 2025803,494$141.1M0.1%+2,159+0.3%AddedHolders
Q3 2025801,335$154.1M0.2%−114,831−12.5%ReducedHolders
Q2 2025916,166$202.5M0.2%−208,873−18.6%ReducedHolders
Q1 20251,125,039$244.8M0.3%+130,031+13.1%AddedHolders
Q4 2024995,008$182.5M0.2%+62,359+6.7%AddedHolders
Q3 2024932,649$216.9M0.3%−43,402−4.4%ReducedHolders
Q2 2024976,051$189.7M0.3%−147,472−13.1%ReducedHolders
Q1 20241,123,523$222.0M0.3%−17,809−1.6%ReducedHolders
Q4 20231,141,332$246.4M0.4%+89,775+8.5%AddedHolders
Q3 20231,051,557$172.9M0.3%+152,924+17.0%AddedHolders
Q2 2023898,633$174.3M0.3%+204,727+29.5%AddedHolders
Q1 2023693,906$141.8M0.3%−26,651−3.7%ReducedHolders
Q4 2022720,557$152.7M0.3%−101,740−12.4%ReducedHolders
Q3 2022822,297$176.5M0.4%−7,971−1.0%ReducedHolders
Q2 2022830,268$212.4M0.5%−27,181−3.2%ReducedHolders
Q1 2022857,449$215.6M0.4%+144,390+20.2%AddedHolders
Q4 2021713,059$208.6M0.4%−35,098−4.7%ReducedHolders
Q3 2021748,157$198.6M0.4%+72,485+10.7%AddedHolders
Q2 2021675,672$182.5M0.4%+167,560+33.0%AddedHolders
Q1 2021508,112$121.1M0.3%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.