American Tower Director Reports Catch-Up Broker DRIP Share Purchases

Overview & Nature of Transaction

On October 22, 2026, American Tower Corp ($AMT) Director Teresa Hillary Clarke filed a Form 4 reporting fifteen separate open-market purchases (Transaction Code: P) of common stock spanning from April 28, 2023, to October 20, 2026.

According to the footnotes, these transactions represent shares acquired pursuant to a broker-administered dividend reinvestment plan (DRIP) that were inadvertently omitted from prior filings. In aggregate, the director acquired 338.234 shares for a total consideration of approximately $65,318.04, bringing her direct ownership from 5,307 shares to 5,645.234 shares.

Transaction Breakdown Summary

• Period Covered: April 28, 2023 – October 20, 2026 (15 quarterly dividend reinvestment events)
• Price Range: $167.52 – $227.42 per share
• Total Shares Acquired: 338.234 shares
• Total Capital Invested: $65,318.04
• Ending Balance: 5,645.234 shares (held directly)

Governance & Significance Assessment

The filing includes a remark noting that as of the filing date, the reporting person is no longer enrolled in the broker-administered DRIP. Because these transactions represent automatic, routine dividend reinvestments rather than discretionary market timing decisions, the trading significance is categorized as Low.