Compensation award — excluded from discretionary-purchase analysis.
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
Oct 3, 2025
Reporting period
Not applicable
Filed with the SEC
Oct 8, 2025
DirectorGrant / award
Context
Classification
grant award
Code A — grant or award
Planned / mechanical clue
None found in footnotes
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001781215-25-000007
Filed / recorded
Oct 8, 2025, 12:09 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
Robin Matlock
Relationship
Director
Security
Phantom Stock
Table
Derivative (Table II)
Transaction date
Oct 3, 2025
Transaction code
A
Shares / units
7.446
Price per share
$104.422
Acquired / disposed
Acquired (A)
Shares owned after
998
Ownership form
Direct
Amendment
No
Footnotes from the filing
Pursuant to the Reporting Person's election to participate in the Iron Mountain Incorporated Directors Deferred Compensation Plan (the "Plan"), the shares of phantom stock (the "Phantom Shares") will become payable in shares of Iron Mountain Incorporated common stock ("Common Stock") on various dates selected by the Reporting Person or as otherwise provided in the Plan. Each Phantom Share is the economic equivalent of one share of Common Stock.
These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares.
The price reported in Column 8 is a weighted average price. These shares of Common Stock were acquired in multiple transactions at prices ranging from $104.349 to $104.524, inclusive. The Reporting Person undertakes to provide Iron Mountain Incorporated (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock acquired at each separate price within the ranges set forth in this footnote (3).