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 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.
REILLY EUGENE F reported acquisition or exercise transactions in this Form 4 filing.
American Tower director Eugene F. Reilly received a grant of 1,209 restricted stock units of Common Stock on March 10, 2026 as compensation. The award was made at a price of $0.00 per unit under the 2007 Equity Incentive Plan and will vest on March 10, 2027. Each RSU represents a contingent right to receive one share of Common Stock. After this grant, Reilly directly holds 6,898 shares of American Tower common stock.
Tanner Bruce L reported acquisition or exercise transactions in this Form 4 filing.
American Tower director Bruce L. Tanner received a stock-based award. He was granted 1,209 restricted stock units (RSUs), each representing one share of common stock, at no cash purchase price. After this award, he directly holds 6,940 shares of common stock.
The RSUs were granted under the 2007 Equity Incentive Plan, as amended, and are scheduled to vest on March 10, 2027. This is a compensation-related equity grant rather than an open-market share purchase.
Lieblein Grace reported acquisition or exercise transactions in this Form 4 filing.
American Tower director Grace Lieblein reported an equity award of 1,209 shares of Common Stock in the form of restricted stock units. The RSUs were granted at no cash cost to her and increase her direct holdings to 9,141 shares after the transaction.
The RSUs were granted under the company’s 2007 Equity Incentive Plan and are scheduled to vest on March 10, 2027. Each RSU represents a contingent right to receive one share of American Tower Common Stock if the vesting conditions are satisfied.
Frank Kenneth R reported acquisition or exercise transactions in this Form 4 filing.
American Tower Corp director Kenneth R. Frank received an equity award of 1,209 restricted stock units. The award was granted under the 2007 Equity Incentive Plan and will vest on March 10, 2027. Each restricted stock unit represents a contingent right to receive one share of common stock.
Following this grant, Frank is reported as directly holding 6,188 shares of common stock. This is a compensation-related grant, not an open-market purchase or sale, and therefore reflects routine director equity compensation rather than a discretionary trading decision.
American Tower Corporation reported that board member Robert D. Hormats has decided not to stand for re-election at the company’s 2026 Annual Meeting of Stockholders. The company stated that his decision did not involve any disagreements with American Tower. Hormats currently serves on the Nominating & Corporate Governance Committee and will continue in this role until the Annual Meeting.
American Tower’s President and CEO Steven O. Vondran reported option exercises and share sales in company stock. On March 4, 2026, he exercised options for 33,482 shares of common stock at an exercise price of $0.00 under the 2007 Equity Incentive Plan.
That same day, he sold 33,482 shares of common stock in three open-market transactions at prices of $187.90, $188.82, and $189.82 per share, with actual trade prices ranging from $187.31 to $190.09. The sales were made under a Rule 10b5-1 trading plan adopted on May 6, 2025, and left him with 105,374 shares of American Tower common stock held directly.
American Tower Corp. executive Ruth T. Dowling, EVP, Chief Administrative Officer, General Counsel and Secretary, sold 682 shares of Common Stock in an open-market transaction. The shares were sold at an average price of $188.51 per share. After this sale, she directly owned 31,047 shares of American Tower common stock. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan adopted by the reporting person.