AMT Insider Trading

Net Selling · 180d
Open-Market Buys (180d)
$495K
1 insiders
Open-Market Sells (180d)
$22.0M
5 insiders
Net Insider Flow
-$21.5M
open market, 180d
Reporting Insiders
6
17 P/S transactions
Build

Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Recent Form 4 Transactions

100 shown
DateInsiderRoleActionSharesPriceValue
Jun 1, 2026Meyer Robert JosephSVP & Advisor to the CFOTax withholding(F)153$187.53$29K
May 28, 2026Reeve Pamela D ADirectorGift(G)810$0
Apr 29, 2026Dowling Ruth TEVP, Chief Admin Ofr, GC & SecSell(S)416$177.54$74K
Apr 28, 2026Dowling Ruth TEVP, Chief Admin Ofr, GC & SecSell(S)556$178.48$99K
Mar 11, 2026Vondran Steven OPresident and CEO, DirectorTax withholding(F)2K$182.85$395K
Mar 11, 2026Noel Eugene MEVP & Chief Operating OfficerTax withholding(F)719$182.85$131K
Mar 11, 2026Dowling Ruth TEVP, Chief Admin Ofr, GC & SecTax withholding(F)863$182.85$158K
Mar 11, 2026Meyer Robert JosephSVP & Chief Accounting OfficerTax withholding(F)684$182.85$125K
Mar 11, 2026Smith Rodney MEVP, CFO & TreasurerTax withholding(F)1K$182.85$237K
Mar 11, 2026Font JuanSVP, Pres. & CEO, CoreSiteTax withholding(F)928$182.85$170K
Mar 11, 2026Rossi Richard CEVP & President, U.S. TowerTax withholding(F)684$182.85$125K
Mar 10, 2026Frank Kenneth RDirectorGrant(A)1K$0
Mar 10, 2026Lieblein GraceDirectorGrant(A)1K$0
Mar 10, 2026Tanner Bruce LDirectorGrant(A)1K$0
Mar 10, 2026Reilly Eugene FDirectorGrant(A)1K$0
Mar 10, 2026Ray Neville RDirectorGrant(A)1K$0
Mar 10, 2026Reeve Pamela D ADirectorGrant(A)1K$0
Mar 10, 2026Clarke Teresa HillaryDirectorGrant(A)1K$0
Mar 10, 2026Hormats Robert DDirectorGrant(A)1K$0
Mar 10, 2026Kalathur RajeshDirectorBuy(P)3K$185.30$495K
Mar 10, 2026Kalathur RajeshDirectorGrant(A)1K$0
Mar 10, 2026Macnab CraigDirectorGrant(A)1K$0
Mar 10, 2026Chambliss Kelly CDirectorGrant(A)1K$0
Mar 10, 2026Vondran Steven OPresident and CEO, DirectorTax withholding(F)15K$186.12$2.8M
Mar 10, 2026Vondran Steven OPresident and CEO, DirectorGrant(A)21K$0
Mar 10, 2026Noel Eugene MEVP & Chief Operating OfficerGrant(A)8K$0
Mar 10, 2026Noel Eugene MEVP & Chief Operating OfficerTax withholding(F)2K$186.12$465K
Mar 10, 2026Dowling Ruth TEVP, Chief Admin Ofr, GC & SecTax withholding(F)7K$186.12$1.2M
Mar 10, 2026Dowling Ruth TEVP, Chief Admin Ofr, GC & SecGrant(A)7K$0
Mar 10, 2026Meyer Robert JosephSVP & Chief Accounting OfficerGrant(A)4K$0
Mar 10, 2026Meyer Robert JosephSVP & Chief Accounting OfficerTax withholding(F)1K$186.12$255K
Mar 10, 2026Smith Rodney MEVP, CFO & TreasurerGrant(A)11K$0
Mar 10, 2026Smith Rodney MEVP, CFO & TreasurerTax withholding(F)12K$186.12$2.3M
Mar 10, 2026Font JuanSVP, Pres. & CEO, CoreSiteTax withholding(F)2K$186.12$341K
Mar 10, 2026Font JuanSVP, Pres. & CEO, CoreSiteGrant(A)8K$0
Mar 10, 2026Rossi Richard CEVP & President, U.S. TowerTax withholding(F)2K$186.12$287K
Mar 10, 2026Rossi Richard CEVP & President, U.S. TowerGrant(A)6K$0
Mar 4, 2026Dowling Ruth TEVP, Chief Admin Ofr, GC & SecSell(S)682$188.51$129K
Mar 4, 2026Vondran Steven OPresident and CEO, DirectorSell(S)2K$189.82$337K
Mar 4, 2026Vondran Steven OPresident and CEO, DirectorSell(S)15K$187.90$2.8M
Mar 4, 2026Vondran Steven OPresident and CEO, DirectorOption exercise(M)33K$94.71$3.2M
Mar 4, 2026Vondran Steven OPresident and CEO, DirectorSell(S)17K$188.82$3.1M
Mar 4, 2026Vondran Steven OPresident and CEO, DirectorOption exercise(M)33K$0
Mar 2, 2026Noel Eugene MEVP & Chief Operating OfficerOption exercise(M)41K$94.71$3.9M
Mar 2, 2026Noel Eugene MEVP & Chief Operating OfficerSell(S)5K$189.36$993K
Mar 2, 2026Noel Eugene MEVP & Chief Operating OfficerSell(S)7K$190.29$1.4M
Mar 2, 2026Noel Eugene MEVP & Chief Operating OfficerSell(S)22K$191.40$4.1M
Mar 2, 2026Noel Eugene MEVP & Chief Operating OfficerSell(S)7K$192.03$1.3M
Mar 2, 2026Noel Eugene MEVP & Chief Operating OfficerOption exercise(M)41K$0
Feb 27, 2026Meyer Robert JosephSVP & Chief Accounting OfficerSell(S)4K$186.73$832K
Feb 27, 2026Dowling Ruth TEVP, Chief Admin Ofr, GC & SecSell(S)656$186.16$122K
Feb 25, 2026Vondran Steven OPresident and CEO, DirectorGrant(A)25K$0
Feb 25, 2026Smith Rodney MEVP, CFO & TreasurerGrant(A)21K$0
Feb 25, 2026Dowling Ruth TEVP, Chief Admin Ofr, GC & SecGrant(A)11K$0
Feb 17, 2026Smith Rodney MEVP, CFO & TreasurerSell(S)2K$190.35$397K
Feb 17, 2026Smith Rodney MEVP, CFO & TreasurerOption exercise(M)34K$94.71$3.3M
Feb 17, 2026Smith Rodney MEVP, CFO & TreasurerSell(S)10K$191.52$1.8M
Feb 17, 2026Smith Rodney MEVP, CFO & TreasurerSell(S)23K$192.49$4.4M
Feb 17, 2026Smith Rodney MEVP, CFO & TreasurerSell(S)1$193.13$193
Feb 17, 2026Smith Rodney MEVP, CFO & TreasurerOption exercise(M)34K$0
Jan 3, 2026Font JuanSVP, Pres. & CEO, CoreSiteTax withholding(F)419$174.80$73K
Oct 31, 2025Reilly Eugene FDirectorBuy(P)6K$178.99$994K
Oct 1, 2025Dowling Ruth TEVP, Chief Admin Ofr, GC & SecTax withholding(F)55$193.32$11K
Sep 19, 2025Reilly Eugene FDirectorExpiration(E)1$0
Jul 31, 2025Font JuanSVP, Pres. & CEO, CoreSiteSell(S)720$208.33$150K
Jun 1, 2025Meyer Robert Joseph JRSVP & Chief Accounting OfficerTax withholding(F)162$214.65$35K
Mar 17, 2025Goel SanjayEVP & President, Asia-PacificSell(S)4K$215.92$864K
Mar 11, 2025Dowling Ruth TEVP, Chief Admin Ofr, GC & SecTax withholding(F)905$209.78$190K
Mar 11, 2025Font JuanSVP, Pres. & CEO, CoreSiteTax withholding(F)981$209.78$206K
Mar 11, 2025Meyer Robert Joseph JRSVP & Chief Accounting OfficerTax withholding(F)717$209.78$150K
Mar 11, 2025Noel Eugene MEVP & Chief Operating OfficerTax withholding(F)755$209.78$158K
Mar 11, 2025Puech OlivierEVP & President, InternationalTax withholding(F)1K$209.78$254K
Mar 11, 2025Vondran Steven OPresident and CEO, DirectorTax withholding(F)2K$209.78$475K
Mar 11, 2025Rossi Richard CEVP & President, U.S. TowerTax withholding(F)717$209.78$150K
Mar 11, 2025Smith Rodney MEVP, CFO & TreasurerTax withholding(F)1K$209.78$285K
Mar 10, 2025Noel Eugene MEVP & Chief Operating OfficerGrant(A)6K$0
Mar 10, 2025Frank Kenneth RDirectorGrant(A)1K$0
Mar 10, 2025Tanner Bruce LDirectorGrant(A)1K$0
Mar 10, 2025Lieblein GraceDirectorGrant(A)1K$0
Mar 10, 2025Hormats Robert DDirectorGrant(A)1K$0
Mar 10, 2025Chambliss Kelly CDirectorGrant(A)1K$0
Mar 10, 2025Clarke Teresa HillaryDirectorGrant(A)1K$0
Mar 10, 2025Ray Neville RDirectorGrant(A)1K$0
Mar 10, 2025Macnab CraigDirectorGrant(A)1K$0
Mar 10, 2025Kalathur RajeshDirectorGrant(A)1K$0
Mar 10, 2025Reed Joann ADirectorGrant(A)1K$0
Mar 10, 2025Reeve Pamela D ADirectorGrant(A)1K$0
Mar 10, 2025Dowling Ruth TEVP, Chief Admin Ofr, GC & SecGrant(A)6K$0
Mar 10, 2025Dowling Ruth TEVP, Chief Admin Ofr, GC & SecTax withholding(F)1K$213.07$301K
Mar 10, 2025Font JuanSVP, Pres. & CEO, CoreSiteGrant(A)7K$0
Mar 10, 2025Font JuanSVP, Pres. & CEO, CoreSiteTax withholding(F)874$213.07$186K
Mar 10, 2025Meyer Robert Joseph JRSVP & Chief Accounting OfficerTax withholding(F)1K$213.07$262K
Mar 10, 2025Meyer Robert Joseph JRSVP & Chief Accounting OfficerGrant(A)5K$0
Mar 10, 2025Noel Eugene MEVP & Chief Operating OfficerTax withholding(F)2K$213.07$457K
Mar 10, 2025Puech OlivierEVP & President, InternationalGrant(A)8K$0
Mar 10, 2025Puech OlivierEVP & President, InternationalTax withholding(F)8K$213.07$1.7M
Mar 10, 2025Vondran Steven OPresident and CEO, DirectorGrant(A)15K$0
Mar 10, 2025Vondran Steven OPresident and CEO, DirectorTax withholding(F)10K$213.07$2.2M
Mar 10, 2025Rossi Richard CEVP & President, U.S. TowerGrant(A)4K$0
Mar 10, 2025Rossi Richard CEVP & President, U.S. TowerTax withholding(F)1K$213.07$220K

Data Source

Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.

Coverage: Form 4 filings indexed 2021-01-042026-07-20. Earlier history is backfilling; this window widens as it deepens.

Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).