Rodney M. Smith - 01 Mar 2024 Form 4 Insider Report for AMERICAN TOWER CORP /MA/ (AMT)

Signature
/s/ Marina A. Breed, as attorney-in-fact
Issuer symbol
AMT
Transactions as of
01 Mar 2024
Net transactions value
-$1,340,711
Form type
4
Filing time
05 Mar 2024, 16:20:16 UTC
Previous filing
01 Mar 2024
Next filing
08 Mar 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMT Common Stock Options Exercise $934,301 +11,509 +18% $81.18 74,478 01 Mar 2024 Direct
transaction AMT Common Stock Sale $628,420 -3,194 -4.3% $196.75 71,284 01 Mar 2024 Direct F1, F2
transaction AMT Common Stock Sale $1,048,138 -5,303 -7.4% $197.65 65,981 01 Mar 2024 Direct F1, F3
transaction AMT Common Stock Sale $598,454 -3,012 -4.6% $198.69 62,969 01 Mar 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 -11,509 -50% $0.000000 11,510 01 Mar 2024 Common Stock 11,509 $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