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.
The Vanguard Group filed Amendment No. 11 to a Schedule 13G/A reporting its position in American Tower Corp Common Stock. The filing states that, following an internal realignment described in the filing, Vanguard reports 0 shares beneficially owned and 0% of the class as of 03/13/2026. The amendment explains that subsidiaries and business divisions of The Vanguard Group, Inc. will report ownership separately after the 01/12/2026 realignment. The filing is signed by Ashley Grim, Head of Global Fund Administration, on 03/26/2026.
American Tower executive Richard C. Rossi reported routine equity compensation and related tax withholding transactions. On March 10, 2026, he acquired 6,448 shares of Common Stock at $0.00 per share as a grant of restricted stock units under the company’s equity incentive plan, which vest in equal thirds over three years. On March 10, 2026 and March 11, 2026, a total of 2,228 shares were delivered back to the company at prices of $186.12 and $182.85 per share to cover withholding taxes due upon RSU vesting, which is not an open-market sale. After these transactions, Rossi directly owned 17,518 shares of American Tower Common Stock.
American Tower senior executive Juan Font reported routine equity compensation activity. On March 10, 2026, he received 8,060 shares of Common Stock as a grant under the company’s equity incentive plan, with RSUs vesting in three annual installments. On March 10 and 11, a total of 2,762 shares were delivered back to the company to cover withholding taxes upon RSU vesting. After these transactions, he directly holds 28,352 shares of Common Stock.
American Tower executive vice president, CFO and treasurer Rodney M. Smith reported routine equity compensation and related tax withholding transactions in Common Stock. On March 10, 2026, he received a grant of 10,531 restricted stock units (RSUs) that were awarded under the 2007 Equity Incentive Plan and will vest in three equal annual installments, starting one year from the grant date. Each RSU represents a contingent right to one share of Common Stock.
To cover withholding taxes on the vesting of previously granted RSUs and performance-based restricted stock units, 12,433 shares were delivered back to the company at $186.12 per share on March 10, 2026, and a further 1,295 shares at $182.85 per share on March 11, 2026. These F-code dispositions are not open-market sales but share transfers to the issuer for tax obligations. After these transactions, Smith directly holds 92,542 shares of American Tower Common Stock.
AMERICAN TOWER CORP (AMT) senior vice president and chief accounting officer Robert Joseph Meyer reported equity compensation and related tax withholding transactions in company stock. On March 10, 2026, he received a grant of 4,030 shares of Common Stock as a stock award under the 2007 Equity Incentive Plan. These restricted stock units vest in three equal annual installments starting one year after the grant date, with each unit representing one future share.
To cover withholding taxes on previously granted RSUs vesting under the plan, 1,368 shares were delivered back to the company on March 10, 2026 at a price of $186.12 per share, and 684 shares on March 11, 2026 at $182.85 per share. After the latest tax-withholding disposition, Meyer directly owns 26,439 shares of AMERICAN TOWER Common Stock.
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.