Every Form 4 that American Tower Corp (AMT) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow AMT and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full AMT filings page.
AMERICAN TOWER CORP (AMT) director Rajesh Kalathur reported an open-market purchase of 2,829 shares of Common Stock on 2026-08-21 at $177.00 per share. Following this transaction, he directly holds 7,765 shares. An additional 171 shares are held indirectly by his spouse's revocable trust, for which he disclaims beneficial ownership.
American Tower Corp. executive Robert Joseph Meyer, SVP & Advisor to the CFO, reported a sale of 5,000 shares of Common Stock on 29 July 2026 at $178.89 per share in an open-market or private transaction. Following the sale, he directly holds 21,428 shares, which include 142 shares acquired through the company’s employee stock purchase plan in May 2026. The transaction was not reported as executed under a Rule 10b5‑1 trading plan.
American Tower Corporation executive Ruth T. Dowling, EVP, Chief Administrative Officer, General Counsel and Secretary, reported selling a total of 1,791 shares of common stock in two transactions on July 28–29, 2026. She sold 685 shares at $169.5400 per share and 1,106 shares at $174.9600 per share. These sales were effected pursuant to a Rule 10b5-1 trading plan adopted on October 29, 2025. Her reported holdings include 41 shares acquired under the company’s employee stock purchase plan in May 2026.
American Tower executive Robert Joseph Meyer, SVP & Advisor to the CFO, reported a routine tax-related share disposition. On June 1, 2026, 153 shares of Common Stock were delivered to the company at $187.53 per share to cover withholding taxes on vesting restricted stock units under the 2007 Equity Incentive Plan. After this non‑market transaction, he directly holds 26,286 shares of American Tower common stock.
American Tower director Pamela D. A. Reeve reported a charitable stock gift. On May 28, 2026, she made a bona fide gift of 810 shares of American Tower common stock at no stated price per share. After the gift, she directly owned 21,089 common shares. This filing reflects a personal charitable transfer rather than a market sale or purchase.
American Tower Corp. insider Robert D. Hormats filed a Form 4 that functions as a holdings report rather than a trade notice. The filing shows he directly owns 9,597 shares of American Tower common stock following the reported date. No explicit purchase, sale, or other transaction is indicated in the data provided.
American Tower executive Ruth T. Dowling, EVP, Chief Administrative Officer, General Counsel and Secretary, reported selling a total of 972 shares of Common Stock of AMT in two open-market transactions.
The sales occurred at prices around $178 per share under a pre-arranged Rule 10b5-1 trading plan, and she now directly holds 29,461 shares after these trades.
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.
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.
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’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.
American Tower EVP & Chief Operating Officer Noel Eugene M exercised options covering 41,209 shares of common stock on March 2, 2026, converting an option granted under the 2007 Equity Incentive Plan into common shares at an exercise price of $94.71 per share.
On the same date, he sold a total of 41,209 common shares in multiple open-market transactions at weighted average prices between $188.82 and $192.19 per share under a Rule 10b5-1 trading plan adopted on February 26, 2025. Following these trades, he directly owns 29,592 common shares, which include small amounts acquired through the employee stock purchase plan.
American Tower Corp (AMT) insider sale: Robert Joseph Meyer, SVP & Chief Accounting Officer, reported an open-market sale of 4,454 shares of common stock on February 27, 2026 at a price of $186.73 per share.
After this transaction, Meyer directly owned 24,461 American Tower shares. This direct holding figure includes 121 shares acquired under the company’s employee stock purchase plan in May 2025, as noted in the footnote.
American Tower Corp (AMT) executive Ruth T. Dowling reported an open-market sale of 656 shares of common stock. The transaction took place on February 27, 2026 at an average price of $186.16 per share. After this sale, she directly held 31,729 shares of American Tower common stock. According to a footnote, the sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person, which is a pre-arranged program that allows insiders to sell shares over time under preset conditions.
American Tower executive Ruth T. Dowling acquired 11,083 shares of Common Stock at no cost through earned performance-based restricted stock units. The award reflects PSUs earned after a three-year performance period from a grant made on March 10, 2023, and will vest three years from that grant date.
After this acquisition, Dowling directly owns 32,385 shares, which includes 40 shares previously acquired under American Tower's employee stock purchase plan in November 2025.
American Tower Executive Vice President, Chief Financial Officer and Treasurer Rodney M. Smith reported an equity award tied to company performance. He acquired 21,425 shares of Common Stock at no purchase price through performance-based restricted stock units earned under a March 10, 2023 award. These shares will vest three years from that grant date, bringing his direct holding to 95,739 shares of Common Stock.
American Tower Corp. reported that President and CEO Steven O. Vondran acquired 24,626 shares of Common Stock through a grant classified as a grant, award, or other acquisition. The shares reflect performance-based restricted stock units earned from a prior award and were recorded at a price of $0.0000 per share.
Following this transaction, Vondran directly holds 105,374 shares of Common Stock. According to the award terms, these performance-based restricted stock units will vest three years from the original grant date of March 10, 2023, with each unit representing a right to receive one share of Common Stock.
American Tower EVP, CFO & Treasurer Rodney M. Smith reported an option exercise and related share sales. On February 17, 2026, he exercised an option for 34,341 shares of common stock and then sold the same number of shares in several open-market transactions at prices around $190–$193 per share.
The sales were executed under a Rule 10b5-1 trading plan adopted on May 22, 2025, indicating a prearranged schedule. After these transactions, Smith directly owned 74,314 shares, including shares previously acquired through the company’s employee stock purchase plan.
American Tower Corporation reported an insider equity transaction by a senior executive. The SVP, President & CEO of CoreSite delivered 419 shares of American Tower common stock to the company on 01/03/2026 to cover withholding taxes owed on the vesting of previously granted restricted stock units under the 2007 Equity Incentive Plan.
After this tax-withholding transaction, the executive beneficially owns 23,054 shares of American Tower common stock, which includes 48 shares acquired through the company’s employee stock purchase plan in November 2025. The filing is a routine disclosure of equity compensation and related tax settlement rather than an open-market sale.
American Tower Corporation filed an insider ownership report showing that the reporting person beneficially owns 38,144 shares of common stock directly following the reported transactions.
The total includes 109 shares and 12 shares acquired through the company’s employee stock purchase plan in May 2025 and November 2025. The filing also notes that Mr. Puech ceased to be an officer of American Tower effective January 2, 2026.
American Tower Corporation’s subsidiary ATC TRS II LLC sold 2,288,621 Class A shares of AST SpaceMobile, Inc. in a sale coded “S” on December 9, 2025 at a price of $69.75 per share, executed as a block trade with Barclays Capital Inc. After this transaction, ATC TRS II LLC indirectly holds 211,379 AST SpaceMobile Class A shares and 2,170,657 AST & Science LLC common units plus an equal number of AST SpaceMobile Class B shares. These common units, together with the corresponding Class B shares, can be redeemed at any time on a one-to-one basis for the same number of Class A shares and do not expire.
American Tower (AMT) disclosed an insider purchase by a director. On 10/31/2025, the director bought 5,554 shares of common stock at $178.99 per share. Following the transaction, the director beneficially owned 5,689 shares, held directly.
Ruth T. Dowling, Executive Vice President, Chief Administrative Officer, General Counsel and Secretary of American Tower Corp (AMT), reported a sale of 55 shares of Common Stock on 10/01/2025 at a price of $193.32 per share. The filing explains the 55 shares were delivered to the issuer to satisfy withholding taxes related to the vesting of restricted stock units previously granted under the company’s 2007 Equity Incentive Plan. After the transaction the reporting person beneficially owns 21,262 shares, which includes 35 shares acquired under the issuer’s employee stock purchase plan in May 2025.
Eugene F. Reilly, a director of American Tower Corp (AMT), reported transactions dated 09/19/2025. He disposed of 135 shares of AMT common stock. The filing also reports a derivative transaction: a call option (obligation to sell) with $220 strike showing a related disposition of 100 underlying shares and 0 shares held thereafter. The form is signed by an attorney-in-fact on 09/23/2025.