Smith Rodney M 4

4 · AMERICAN TOWER CORP /MA/ · Filed Mar 12, 2026

AI-generated summary of this filing

Updated Mar 12, 2026

American Tower CFO Rodney Smith Receives RSU Award; Shares Withheld

What Happened

Rodney M. Smith, EVP, Chief Financial Officer & Treasurer of American Tower (AMT), was granted 10,531 restricted stock units (RSUs) on 2026-03-10 (each RSU converts to one share on vesting). Those RSUs were reported as an award (no purchase price).
To satisfy withholding taxes on vested awards, 12,433 shares were delivered to the issuer on 2026-03-10 at $186.12 per share for a value of $2,314,030, and 1,295 shares were delivered on 2026-03-11 at $182.85 per share for a value of $236,791. Total shares withheld: 13,728; total value surrendered: $2,550,821.
This is an award grant combined with routine tax-withholding dispositions (coded F), not an open-market sale or purchase.

Key Details

Transaction dates/prices:
- 2026-03-10: Award of 10,531 RSUs @ $0.00 (grant).
- 2026-03-10: 12,433 shares delivered for tax withholding @ $186.12 = $2,314,030.
- 2026-03-11: 1,295 shares delivered for tax withholding @ $182.85 = $236,791.
Total shares withheld: 13,728; total value surrendered: $2,550,821.
Footnotes: RSUs granted under the 2007 Equity Incentive Plan; vesting is 1/3 annually over three years starting one year from grant. Shares were delivered to the issuer to pay withholding taxes (routine net settlement).
Shares owned after the transactions: not specified in the provided filing details.
Filing date: Form 4 filed 2026-03-12 reporting transactions on 2026-03-10 and 2026-03-11.

Context

These transactions reflect an RSU grant and the common practice of surrendering shares to cover tax withholding when RSUs vest (a cashless net settlement). Such withholding exchanges are administrative and do not necessarily indicate insider sentiment about the stock.
For retail investors: grants increase future potential share holdings as RSUs vest; the withheld shares reduce the net shares received at vesting. Purchases are generally stronger signals than routine tax withholdings.

Form 4

Period: 2026-03-10

EVP, CFO & Treasurer

Transactions

Award
Common Stock
[F1]
2026-03-10+10,531→ 106,270 total
Tax Payment
Common Stock
[F2]
2026-03-10$186.12/sh−12,433$2,314,030→ 93,837 total
Tax Payment
Common Stock
[F3]
2026-03-11$182.85/sh−1,295$236,791→ 92,542 total

Footnotes (3)

[F1]These restricted stock units ("RSUs") were granted pursuant to the 2007 Equity Incentive Plan, as amended (the "Plan"), and vest 1/3rd annually over three years, commencing one year from the date of grant. Each RSU represents a contingent right to receive one share of Common Stock.
[F2]Shares delivered to the issuer for the payment of withholding taxes in connection with the vesting of RSUs and performance-based restricted stock units previously granted under the Plan.
[F3]Shares delivered to the issuer for the payment of withholding taxes in connection with the vesting of RSUs previously granted under the Plan.

Signature

/s/ Marina A. Breed, as attorney-in-fact|2026-03-12

1 file