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American Tower Corp. planned insider sales

In the last twelve months insiders at American Tower Corp. filed 10 Form 144 notices of planned sales, 142,422 shares worth $26.9 million at the time of filing, from 7 sellers. The latest, filed 30 October 2026: Juan Font Hernandez (officer), 592 shares worth $112,261, planned for around 30 October 2026 through Morgan Stanley Smith Barney LLC Executive Financial Services.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
30 October 2026Juan Font HernandezOfficer592$112,26130 October 2026592 shares from 30 October 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
28 October 2026Ruth T DowlingOfficer1,578$290,08428 October 20261,578 shares from 28 October 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
29 July 2026Robert MeyerOfficer5,000$894,42629 July 20265,000 shares from 29 July 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
28 July 2026Ruth T DowlingOfficer1,791$298,63128 July 20261,791 shares from 28 July 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
4 March 2026Steven O VondranOfficer, Director33,482$6.3 million4 March 202633,482 shares from 4 March 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
2 March 2026Eugene NoelOfficer41,209$7.9 million2 March 202641,209 shares from 2 March 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
27 February 2026Ruth T DowlingOfficer2,310$427,37327 February 20262,310 shares from 27 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
27 February 2026Robert MeyerOfficer4,454$831,70927 February 20264,454 shares from 27 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
25 February 2026Olivier Puech TrustEVP Latin America17,665$3.2 million25 February 2026No matching Form 4 saleUBS Financial Services IncRSU VestingForm 144
17 February 2026Rodney SmithOfficer34,341$6.6 million17 February 202634,341 shares from 17 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?