Amit Sharma - May 14, 2021 Form 4 Insider Report for AMERICAN TOWER CORP /MA/ (AMT)

Signature
/s/ Mneesha O. Nahata, as attorney-in-fact
Stock symbol
AMT
Transactions as of
May 14, 2021
Transactions value $
$8,897,928
Form type
4
Date filed
5/18/2021, 04:37 PM
Previous filing
May 12, 2021
Next filing
Jul 6, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMT Common Stock Options Exercise $3.92M +63.2K +26.8% $62.00 299K May 14, 2021 Direct F1
transaction AMT Common Stock Options Exercise $4.98M +64.8K +21.66% $76.90 364K May 14, 2021 Direct F1

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 -63.2K -100% $0.00* 0 May 14, 2021 Common Stock 63.2K $62.00 Direct F2
transaction AMT Option to Purchase Common Stock Options Exercise $0 -64.8K -100% $0.00* 0 May 14, 2021 Common Stock 64.8K $76.90 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 1, 2021.
F2 This option was granted pursuant to the 2007 Equity Incentive Plan, as amended (the "Plan"), and is exercisable in 25% cumulative annual increments beginning March 12, 2013.
F3 This option was granted pursuant to the Plan and is exercisable in 25% cumulative annual increments beginning March 11, 2014.