AMT — * AMERICAN TOWER CORP CL A

Ownership history in Magnetar Financial LLC  ·  16 quarters on record

This page tracks every 13F SEC filing in which Magnetar Financial LLC reported a position in * AMERICAN TOWER CORP CL A (AMT). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.22% (2015 Q1)
Avg. % of fund
0.05%
First filed
2009 Q2
Last filed
2025 Q3
Quarters held
16
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 3,344 -16,165 -82.9% 0.00% $643K $190.47
2023 Q3 ADDED 19,509 +18,087 +1271.9% 0.08% $3.2M $150.94
2021 Q4 REDUCED 1,422 -1,886 -57.0% 0.00% $416K $257.56
2021 Q3 REDUCED 3,308 -3,882 -54.0% 0.01% $878K $232.55
12 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% of Fund (quarterly)    AMT price (monthly, adj. close)

Other funds also holding AMT

As of 2025 Q4 — sorted by position size

B&I Capital AG 3Y 11.18% Heard Capital LLC 3Y 9.58% AVENIR CORP 3Y 7Y 7.96% Vert Asset Management LLC 3Y 7.35% COHEN & STEERS, INC. 3Y 7Y 3.96% LDR Capital Management LLC 3Y 7Y 3.77% Partners Group Holding AG 3Y 7Y 3.71% LASALLE INVESTMENT MANAGEMENT SECURITIES LLC 3Y 7Y 3.71% Broad Run Investment Management, LLC 3Y 7Y 3.58% Socorro Asset Management LP 3Y 3.44%
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