Skip to main content
Signal8
Launch Terminal

American Tower Corp. (AMT)

American Tower Corp. (AMT) Insider Trading

Directors, officers and holders of more than 10% of AMT report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 148 transactions on file: 5 with code P, 10 with code S and 35 with other codes.

DateInsiderCodeShares
Oct 29, 2026Dowling Ruth TS Sale952
Oct 28, 2026Dowling Ruth TS Sale626
Oct 20, 2026Clarke Teresa HillaryP Purchase43
Oct 1, 2026Blanchett PaulA Award16,299
Aug 21, 2026Kalathur RajeshP Purchase2,829
Jul 29, 2026Dowling Ruth TS Sale1,106
Jul 29, 2026Meyer Robert JosephS Sale5,000
Jul 28, 2026Dowling Ruth TS Sale685
Jul 13, 2026Clarke Teresa HillaryP Purchase46
Jun 1, 2026Meyer Robert JosephF Tax Payment153
May 28, 2026REEVE PAMELA D AG Gift810
Apr 29, 2026Dowling Ruth TS Sale416
Apr 28, 2026Clarke Teresa HillaryP Purchase44
Apr 28, 2026Dowling Ruth TS Sale556
Mar 11, 2026Noel Eugene MF Tax Payment719
Mar 11, 2026Dowling Ruth TF Tax Payment863
Mar 11, 2026Smith Rodney MF Tax Payment1,295
Mar 11, 2026Meyer Robert JosephF Tax Payment684
Mar 11, 2026Font JuanF Tax Payment928
Mar 11, 2026Vondran Steven OF Tax Payment2,158
Mar 11, 2026Rossi Richard CF Tax Payment684
Mar 10, 2026Dowling Ruth TA Award6,878
Mar 10, 2026Dowling Ruth TF Tax Payment6,629
Mar 10, 2026HORMATS ROBERT DA Award1,209
Mar 10, 2026Noel Eugene MA Award8,167
Mar 10, 2026Kalathur RajeshA Award1,209
Mar 10, 2026Vondran Steven OA Award20,955
Mar 10, 2026Smith Rodney MF Tax Payment12,433
Mar 10, 2026Font JuanA Award8,060
Mar 10, 2026Vondran Steven OF Tax Payment15,269
Mar 10, 2026Kalathur RajeshP Purchase2,671
Mar 10, 2026Clarke Teresa HillaryA Award1,209
Mar 10, 2026Meyer Robert JosephF Tax Payment1,368
Mar 10, 2026MACNAB CRAIGA Award1,209
Mar 10, 2026Frank Kenneth RA Award1,209
Mar 10, 2026Noel Eugene MF Tax Payment2,498
Mar 10, 2026Font JuanF Tax Payment1,834
Mar 10, 2026Ray Neville RA Award1,209
Mar 10, 2026REILLY EUGENE FA Award1,209
Mar 10, 2026Smith Rodney MA Award10,531
Mar 10, 2026REEVE PAMELA D AA Award1,209
Mar 10, 2026Tanner Bruce LA Award1,209
Mar 10, 2026Meyer Robert JosephA Award4,030
Mar 10, 2026Chambliss Kelly CA Award1,209
Mar 10, 2026Rossi Richard CA Award6,448
Mar 10, 2026Rossi Richard CF Tax Payment1,544
Mar 10, 2026Lieblein GraceA Award1,209
Mar 4, 2026Vondran Steven OS Sale1,773
Mar 4, 2026Vondran Steven OS Sale16,625
Mar 4, 2026Vondran Steven OS Sale15,084

The full Form 4 history is on the AMT company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.