Welcome to our dedicated page for American Tower SEC filings (Ticker: AMT), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
American Tower Corporation (NYSE: AMT) files a broad range of documents with the U.S. Securities and Exchange Commission that provide detailed information on its operations as a global REIT focused on multitenant communications real estate and U.S. data centers. On this page, you can review AMT’s SEC filings alongside AI-powered summaries that help explain the key points in clear language.
Core filings for American Tower include annual reports on Form 10-K and quarterly reports on Form 10-Q, which describe the company’s U.S. & Canada, international property and Data Centers segments, as well as risk factors, liquidity, capital structure and the impact of foreign currency on its results. These reports also discuss how the company’s portfolio of communications sites and data centers supports global data demand and leasing activity.
Current reports on Form 8-K are particularly important for tracking material events. Recent 8-K filings have covered quarterly earnings announcements, cash distributions on common stock, senior note offerings and legal or customer matters. For example, filings describe registered public offerings of senior unsecured notes with various maturities and interest rates, with proceeds used to repay revolving credit facilities and for general corporate purposes. Other 8-Ks outline agreements with customers such as AT&T Mexico and changes in the Board of Directors or senior management.
American Tower also has multiple series of senior notes registered under Section 12(b) of the Exchange Act, and related indentures and supplemental indentures are filed as exhibits. These documents detail covenants limiting mergers, asset sales and certain liens, as well as redemption terms and events of default.
With real-time updates from EDGAR and AI-generated highlights, this filings page allows users to quickly identify significant items in AMT’s 10-Ks, 10-Qs, 8-Ks and note indentures, and to monitor distributions, financing activities and other regulatory disclosures without reading every page manually.
American Tower (AMT) executive Ruth T. Dowling reported routine equity compensation activity. On March 10, 2026, she acquired 6,878 shares of Common Stock as a grant of restricted stock units (RSUs) under the 2007 Equity Incentive Plan. These RSUs vest in three equal annual installments starting one year from the grant date, with each RSU representing the right to receive one share of Common Stock.
Also on March 10 and March 11, 2026, a total of 7,492 shares of Common Stock were delivered back to the company to cover withholding taxes upon vesting of previously granted RSUs and performance-based restricted stock units. These tax-withholding dispositions are not open-market sales. After these transactions, Dowling directly owned 30,433 shares of Common Stock.
American Tower executive Noel Eugene M, EVP & Chief Operating Officer, reported routine equity compensation activity. On March 10, 2026, he received a grant of 8,167 restricted stock units (RSUs) that vest in equal thirds annually over three years, starting one year from the grant date.
On March 10 and March 11, a total of 3,217 shares of Common Stock were delivered back to the company to cover withholding taxes tied to RSUs vesting. After these tax-withholding dispositions, he directly holds 34,542 shares of American Tower Common Stock.
American Tower President and CEO Steven O. Vondran reported routine equity compensation and related tax withholding transactions in Common Stock. On March 10, 2026, he acquired 20,955 shares through a grant of restricted stock units under the company’s 2007 Equity Incentive Plan; these RSUs vest in thirds annually over three years, starting one year from the grant date.
To cover withholding taxes on the vesting of previously granted RSUs and performance-based restricted stock units, shares were delivered back to the issuer: 15,269 shares on March 10, 2026 at $186.12 per share and 2,158 shares on March 11, 2026 at $182.85 per share. These are tax-withholding dispositions, not open-market sales. After these transactions, Vondran directly held 108,902 shares of Common Stock.
American Tower director Kelly C. Chambliss reported receiving a grant of 1,209 shares of Common Stock in the form of restricted stock units. The award was made at no cash cost to Chambliss and is classified as a grant or award rather than a market purchase.
The RSUs were granted under the 2007 Equity Incentive Plan and are scheduled to vest on March 10, 2027. Each RSU converts into one share of Common Stock upon vesting. After this grant, Chambliss holds a total of 4,426 shares directly.
MACNAB CRAIG reported acquisition or exercise transactions in this Form 4 filing.
American Tower director Craig Macnab received a stock-based compensation grant. He was awarded 1,209 restricted stock units (RSUs) of Common Stock at no purchase price, increasing his direct holdings to 15,315 shares after the transaction.
The RSUs were granted under the company’s 2007 Equity Incentive Plan, as amended, and will vest on March 10, 2027. Each RSU gives a contingent right to receive one share of American Tower Common Stock upon vesting, aligning the director’s compensation with long-term shareholder value.
American Tower director Rajesh Kalathur reported new equity holdings in the company. On March 10, 2026, he received 1,209 shares of Common Stock as a stock-based award, which increased his direct holdings to 2,265 shares.
On the same date, he also made an open-market purchase of 2,671 shares of Common Stock at a price of $185.30 per share, bringing his direct ownership to 4,936 shares. In addition, 171 shares are held indirectly by his spouse’s revocable trust, for which he disclaims beneficial ownership.
The 1,209 shares were granted as restricted stock units under the 2007 Equity Incentive Plan and are scheduled to vest on March 10, 2027, with each unit representing a contingent right to receive one share of Common Stock.
American Tower Corporation director Robert D. Hormats received an equity award of 1,209 shares of Common Stock on March 10, 2026, reported as a grant or award, with no cash purchase price.
The award consists of restricted stock units granted under the 2007 Equity Incentive Plan. These RSUs vest on March 10, 2027, and each RSU converts into one share of Common Stock upon vesting. Following this grant, Hormats directly holds 9,597 shares of American Tower common stock.
American Tower director Teresa Hillary Clarke received an equity award of 1,209 shares of Common Stock in the form of restricted stock units. The award was granted at no cash cost to her as part of the company’s equity incentive plan and is classified as a compensation-related acquisition rather than an open-market purchase.
The restricted stock units were granted under the 2007 Equity Incentive Plan, as amended, and are scheduled to vest on March 10, 2027, if the vesting conditions are met. Each unit represents a contingent right to receive one share of American Tower Common Stock. After this grant, Clarke directly holds 5,307 shares of Common Stock, reflecting her ongoing equity stake as a board member.
REEVE PAMELA D A reported acquisition or exercise transactions in this Form 4 filing.
American Tower director Pamela D.A. Reeve received an equity grant of 1,209 restricted stock units (RSUs). The RSUs were awarded under the company’s 2007 Equity Incentive Plan and will vest on March 10, 2027. Following this grant, she holds 21,899 shares of common stock directly.
Ray Neville R reported acquisition or exercise transactions in this Form 4 filing.
American Tower director Ray Neville reported an equity award of restricted stock units. He received 1,209 RSUs of Common Stock as a grant under the company’s 2007 Equity Incentive Plan. The RSUs vest on March 10, 2027, and after this award he directly holds 2,265 shares.