Derivative exercise or conversion — not an open-market buy.
Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell
View the official recordSEC Form 4 — Statement of Changes in Beneficial OwnershipAll the details
Dates, kept separate
Transaction date
Mar 4, 2026
Reporting period
Not applicable
Filed with the SEC
Mar 6, 2026
CEOOption exercise
Context
Classification
option exercise
Code M — exercise or conversion of a derivative security
Planned / mechanical clue
None found in footnotes
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001053507-26-000045
Filed / recorded
Mar 6, 2026, 9:23 PM UTC
Added to OQRO
Oct 2, 2026, 12:27 PM UTC
Parser
form4-xml-v1
Data quality
Verified: identifiers matched exactly
Issuer
AMERICAN TOWER CORP /MA/
Issuer CIK
1053507
Ticker
AMT
Reporting person
Steven O Vondran
Relationship
Director, Officer
Officer title
President and CEO
Security
Option to Purchase Common Stock
Table
Derivative (Table II)
Transaction date
Mar 4, 2026
Transaction code
M
Shares / units
33,482
Price per share
$0.00
Acquired / disposed
Disposed (D)
Shares owned after
0
Ownership form
Direct
Amendment
No
Footnotes from the filing
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.