Rodney M. Smith - Mar 1, 2024 Form 4 Insider Report for AMERICAN TOWER CORP /MA/ (AMT)

Signature
/s/ Marina A. Breed, as attorney-in-fact
Stock symbol
AMT
Transactions as of
Mar 1, 2024
Transactions value $
-$1,340,711
Form type
4
Date filed
3/5/2024, 04:20 PM
Previous filing
Mar 1, 2024
Next filing
Mar 8, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMT Common Stock Options Exercise $934K +11.5K +18.28% $81.18 74.5K Mar 1, 2024 Direct
transaction AMT Common Stock Sale -$628K -3.19K -4.29% $196.75 71.3K Mar 1, 2024 Direct F1, F2
transaction AMT Common Stock Sale -$1.05M -5.3K -7.44% $197.65 66K Mar 1, 2024 Direct F1, F3
transaction AMT Common Stock Sale -$598K -3.01K -4.56% $198.69 63K Mar 1, 2024 Direct F1, F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction AMT Option to Purchase Common Stock Options Exercise $0 -11.5K -50% $0.00 11.5K Mar 1, 2024 Common Stock 11.5K $81.18 Direct F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 9, 2023.
F2 Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $196.20 to $197.15 per share.
F3 Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $197.20 to $198.17 per share.
F4 Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $198.23 to $198.90 per share.
F5 This option was granted pursuant to the 2007 Equity Incentive Plan, as amended, and is exercisable in 25% cumulative annual increments beginning March 10, 2015