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 1, 2026
Reporting period
Not applicable
Filed with the SEC
Mar 4, 2026
OfficerTax withholding
Context
Classification
tax withholding
Code F — shares delivered to pay exercise price or tax liability
Planned / mechanical clue
Tax mechanics (code F)
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001732058-26-000009
Filed / recorded
Mar 4, 2026, 4:43 AM UTC
Added to OQRO
Oct 2, 2026, 12:28 PM UTC
Parser
form4-xml-v1
Data quality
Verified: identifiers matched exactly
Issuer
IRON MOUNTAIN INC
Issuer CIK
1020569
Ticker
IRM
Reporting person
Mark Kidd
Relationship
Officer
Officer title
EVP, GM Data Centers & ALM
Security
Common Stock, par value $.01 per share
Table
Non-derivative (Table I)
Transaction date
Mar 1, 2026
Transaction code
F
Shares / units
61,342
Price per share
$108.33
Acquired / disposed
Disposed (D)
Shares owned after
137,507
Ownership form
Direct
Amendment
No
Footnotes from the filing
Represents the number of shares of Common Stock that have been withheld by the Issuer to satisfy its income tax withholding obligation in connection with the net settlement of the PUs and does not represent a sale.