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 1, 2026
Reporting period
Not applicable
Filed with the SEC
Mar 4, 2026
OfficerOption exercise
Context
Classification
option exercise
Code M — exercise or conversion of a derivative security
Planned / mechanical clue
Footnote references vesting of compensation awards
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
Performance Units
Table
Derivative (Table II)
Transaction date
Mar 1, 2026
Transaction code
M
Shares / units
149,768
Price per share
$0.00
Acquired / disposed
Disposed (D)
Shares owned after
0
Ownership form
Direct
Amendment
No
Footnotes from the filing
Each PU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").
The PUs were initially granted to the Reporting Person on March 1, 2023. Effective as of February 16, 2026, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs fully vested on March 1, 2026.
