Form4insider filings, from the source

Company · CIK 0001053507 · SIC 6798 — Real Estate Investment Trusts · NYSE

AMERICAN TOWER CORP /MA/ · AMT

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $501k · 1sales $1.2M · 2net −$703k
$10k$10k$100k$100k$1M$1MbuyssalesJun 28Jul 13Jul 28Aug 13Aug 28Sep 13Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 21, 2026 PForm 4 →Aug 25, 4:23 pm EDTRajesh KalathurDirector2,829$177.00$500,7337,765+57.3%
Jul 29, 2026 SForm 4 →Jul 31, 4:08 pm EDTRobert Joseph MeyerSVP & Advisor to the CFO5,000$178.89$894,45021,428−18.9%
Jul 28, 2026 SForm 4 →Jul 30, 4:11 pm EDTRuth T DowlingEVP, Chief Admin Ofr, GC & Sec1,791$172.89$309,64127,711−6.07%10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.