American Tower Corporation (AMT) Insider Trading

Over the last 3 months, AMT insiders made 1 open-market buy and 2 sales, a net purchase of $322K (SEC Form 4). Over the last 6 months, 1386 institutions increased and 1504 reduced their position (13F).

Insider Activity

Sentiment
74/100
Buys (3m)
1
Sells (3m)
2
Net (3m)
$321.8K
Insiders buyingFirst buy in 1 quarters
Insider trades by month Buys Sells
Mar
Aug
Nov
Feb
Mar
Apr
Context3-month price +3.3%Institutions mixed (13F)
DateInsiderTypeSharesPrice
Apr 30, 2026Dowling Ruth Tofficer: EVP, Chief Admin Ofr, GC & SecSell416$177.54
Apr 30, 2026Dowling Ruth Tofficer: EVP, Chief Admin Ofr, GC & SecSell556$178.48
Mar 12, 2026Noel Eugene Mofficer: EVP & Chief Operating OfficerTax2,498$186.12
Mar 12, 2026REEVE PAMELA D AdirectorGrant1,209
Mar 12, 2026Noel Eugene Mofficer: EVP & Chief Operating OfficerTax719$182.85
Mar 12, 2026Noel Eugene Mofficer: EVP & Chief Operating OfficerGrant8,167
Mar 12, 2026REILLY EUGENE FdirectorGrant1,209
Mar 12, 2026Rossi Richard Cofficer: EVP & President, U.S. TowerTax684$182.85
Mar 12, 2026Ray Neville RdirectorGrant1,209
Mar 12, 2026Smith Rodney Mofficer: EVP, CFO & TreasurerGrant10,531
Mar 12, 2026Meyer Robert Josephofficer: SVP & Chief Accounting OfficerTax1,368$186.12
Mar 12, 2026Dowling Ruth Tofficer: EVP, Chief Admin Ofr, GC & SecTax863$182.85
Mar 12, 2026MACNAB CRAIGdirectorGrant1,209
Mar 12, 2026Kalathur RajeshdirectorBuy2,671$185.30
Mar 12, 2026Rossi Richard Cofficer: EVP & President, U.S. TowerTax1,544$186.12
Mar 12, 2026Vondran Steven Odirector, officer: President and CEOTax15,269$186.12
Mar 12, 2026Kalathur RajeshdirectorGrant1,209
Mar 12, 2026Clarke Teresa HillarydirectorGrant1,209
Mar 12, 2026Dowling Ruth Tofficer: EVP, Chief Admin Ofr, GC & SecTax6,629$186.12
Mar 12, 2026Smith Rodney Mofficer: EVP, CFO & TreasurerTax12,433$186.12
Mar 12, 2026Meyer Robert Josephofficer: SVP & Chief Accounting OfficerTax684$182.85
Mar 12, 2026Frank Kenneth RdirectorGrant1,209
Mar 12, 2026Vondran Steven Odirector, officer: President and CEOGrant20,955
Mar 12, 2026Dowling Ruth Tofficer: EVP, Chief Admin Ofr, GC & SecGrant6,878
Mar 12, 2026Chambliss Kelly CdirectorGrant1,209
Mar 12, 2026Font Juanofficer: SVP, Pres. & CEO, CoreSiteTax928$182.85
Mar 12, 2026Meyer Robert Josephofficer: SVP & Chief Accounting OfficerGrant4,030
Mar 12, 2026Tanner Bruce LdirectorGrant1,209
Mar 12, 2026Vondran Steven Odirector, officer: President and CEOTax2,158$182.85
Mar 12, 2026HORMATS ROBERT DdirectorGrant1,209

Source: AMT SEC Form 4 filings, latest Apr 30, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their AMT positions over the last 6 months (SEC Form 13F).

Increased
1386
New positions
323
Reduced
1504
Sold out
332
Largest moves
InstitutionActionSharesFiled
VANGUARD GROUP INCIncreased63.8MJan 29, 2026
BLACKROCK, INC.Increased45.0MMay 13, 2026
BLACKROCK, INC.Reduced44.0MFeb 12, 2026
J. STERN & CO. LLPIncreased37.7MFeb 24, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position30.4MMay 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position27.6MMay 8, 2026
STATE STREET CORPIncreased21.4MMay 15, 2026
STATE STREET CORPIncreased21.0MFeb 13, 2026
JPMORGAN CHASE & COIncreased15.1MMay 13, 2026
JPMORGAN CHASE & COReduced14.4MFeb 11, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased13.9MMay 15, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased13.5MFeb 9, 2026
COHEN & STEERS, INC.Increased12.6MMay 15, 2026
COHEN & STEERS, INC.Reduced12.5MFeb 13, 2026
FMR LLCReduced12.0MFeb 17, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.