Noel Eugene M 4

4 · AMERICAN TOWER CORP /MA/ · Filed Mar 4, 2026

Form 4

Period: 2026-03-02

EVP & Chief Operating Officer

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-03-02$94.71/sh+41,209$3,902,904→ 70,801 total
Sale
Common Stock
[F2][F3]
2026-03-02$189.36/sh−5,242$992,625→ 65,559 total
Sale
Common Stock
[F2][F4]
2026-03-02$190.29/sh−7,378$1,403,960→ 58,181 total
Sale
Common Stock
[F2][F5]
2026-03-02$191.40/sh−21,604$4,135,006→ 36,577 total
Sale
Common Stock
[F2][F6]
2026-03-02$192.03/sh−6,985$1,341,330→ 29,592 total
Exercise/Conversion
Option to Purchase Common Stock
[F7]
2026-03-02−41,209→ 0 total
Exercise: $94.71Exp: 2026-03-10→ Common Stock (41,209 underlying)

Footnotes (7)

[F1]Includes 73 and 46 shares acquired under the issuer's employee stock purchase plan in May 2025 and November 2025, respectively.
[F2]The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 26, 2025.
[F3]Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $188.82 to $189.78 per share.
[F4]Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $189.92 to $190.88 per share.
[F5]Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $190.92 to $191.91 per share.
[F6]Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $191.92 to $192.19 per share.
[F7]This option was granted pursuant to the 2007 Equity Incentive Plan, as amended, and is exercisable in 25% cumulative annual increments beginning March 10, 2017.

Signature

/s/ Marina A. Breed, as attorney-in-fact|2026-03-04

Documents

1 file