American Tower (NYSE: AMT) CFO trades 34,341 shares under 10b5-1 plan

Q: What insider transactions did AMT CFO Rodney M. Smith report on this Form 4?

Rodney M. Smith reported exercising an option for 34,341 shares of American Tower common stock and selling 34,341 shares in multiple open-market transactions on February 17, 2026 . These trades combined option exercise and subsequent share sales.

Q: What derivative security did AMT’s CFO exercise in this Form 4 filing?

Rodney M. Smith exercised an Option to Purchase Common Stock covering 34,341 shares . The option was granted under the 2007 Equity Incentive Plan and became exercisable in 25% annual increments beginning on March 10, 2017 , according to the filing footnote.

Q: Does the AMT Form 4 indicate these transactions were open-market sales?

Yes. The Form 4 codes the common stock transactions as “S” for sales, described as open-market or private transactions . The shares were sold in multiple same-day trades, with weighted average prices disclosed for each price range in the footnotes.

Filing Impact

(Very High)

Filing Sentiment

(Very Negative)

Form Type

Rhea-AI Filing Summary

American Tower EVP, CFO & Treasurer Rodney M. Smith reported an option exercise and related share sales. On February 17, 2026, he exercised an option for 34,341 shares of common stock and then sold the same number of shares in several open-market transactions at prices around $190–$193 per share.

The sales were executed under a Rule 10b5-1 trading plan adopted on May 22, 2025, indicating a prearranged schedule. After these transactions, Smith directly owned 74,314 shares, including shares previously acquired through the company’s employee stock purchase plan.

Insider Trade Summary

Net Seller: 34,341 shares ($6,596,528)

Net Sell 6 txns

Insider Smith Rodney M

Role EVP, CFO & Treasurer

Sold 34,341 shs ($6.60M)

Type	Security	Shares	Price	Value
Exercise	Option to Purchase Common Stock	34,341	$0.00	--
Exercise	Common Stock	34,341	$94.71	$3.25M
Sale	Common Stock	2,086	$190.35	$397K
Sale	Common Stock	9,596	$191.52	$1.84M
Sale	Common Stock	22,658	$192.49	$4.36M
Sale	Common Stock	1	$193.13	$193.13

Holdings After Transaction: Option to Purchase Common Stock — 0 shares (Direct); Common Stock — 108,655 shares (Direct)

Footnotes (1)

Includes 93 and 26 shares acquired under the issuer's employee stock purchase plan in May 2025 and in November 2025, respectively. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 22, 2025. Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $189.93 to $190.88 per share. Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $191.06 to $192.00 per share. Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $192.13 to $193.00 per share. 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.

Form 4 Insider Transactions: What Each Field Means →

02/19/2026 - 04:07 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

Smith Rodney M

(Last)

(First)

(Middle)

222 BERKELEY STREET

(Street)

BOSTON

02116

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
AMERICAN TOWER CORP /MA/ [ AMT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	EVP, CFO & Treasurer

3. Date of Earliest Transaction (Month/Day/Year)
02/17/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	02/17/2026		M		34,341	A	$94.71	108,655⁽¹⁾	D
Common Stock	02/17/2026		S⁽²⁾		2,086	D	$190.35⁽³⁾	106,569	D
Common Stock	02/17/2026		S⁽²⁾		9,596	D	$191.52⁽⁴⁾	96,973	D
Common Stock	02/17/2026		S⁽²⁾		22,658	D	$192.49⁽⁵⁾	74,315	D
Common Stock	02/17/2026		S⁽²⁾		1	D	$193.13	74,314	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Option to Purchase Common Stock	$94.71	02/17/2026		M			34,341	⁽⁶⁾	03/10/2026	Common Stock	34,341	$0	0	D

Explanation of Responses:

1. Includes 93 and 26 shares acquired under the issuer's employee stock purchase plan in May 2025 and in November 2025, respectively.

2. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 22, 2025.

3. Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $189.93 to $190.88 per share.

4. Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $191.06 to $192.00 per share.

5. Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $192.13 to $193.00 per share.

6. 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.

Remarks:

	/s/ Marina A. Breed, as attorney-in-fact	02/19/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did AMT CFO Rodney M. Smith report on this Form 4?

Rodney M. Smith reported exercising an option for 34,341 shares of American Tower common stock and selling 34,341 shares in multiple open-market transactions on February 17, 2026. These trades combined option exercise and subsequent share sales.

At what prices did AMT’s CFO sell American Tower (AMT) shares?

Rodney M. Smith sold American Tower common stock at weighted average prices around $190.35, $191.52 and $192.49 per share, with individual trades ranging from $189.93 to $193.00 per share, according to the Form 4 footnotes.

Was the AMT CFO’s sale of shares under a Rule 10b5-1 trading plan?

Yes. The Form 4 states that the sales were effected under a Rule 10b5-1 trading plan adopted by Rodney M. Smith on May 22, 2025. Such plans pre-schedule trades, helping separate them from day-to-day market decisions.

How many American Tower (AMT) shares does the CFO own after these transactions?

After the reported option exercise and share sales, Rodney M. Smith directly owns 74,314 shares of American Tower common stock. This total includes small amounts previously acquired through the company’s employee stock purchase plan in May 2025 and November 2025.

What derivative security did AMT’s CFO exercise in this Form 4 filing?

Rodney M. Smith exercised an Option to Purchase Common Stock covering 34,341 shares. The option was granted under the 2007 Equity Incentive Plan and became exercisable in 25% annual increments beginning on March 10, 2017, according to the filing footnote.

Does the AMT Form 4 indicate these transactions were open-market sales?

Yes. The Form 4 codes the common stock transactions as “S” for sales, described as open-market or private transactions. The shares were sold in multiple same-day trades, with weighted average prices disclosed for each price range in the footnotes.