KIDD MARK

PrivateCIK: 1732058
Location

PORTSMOUTH, NH

Senior insider sale

EVP, GM Data Centers & ALM at IRON MOUNTAIN INC — senior position signals high conviction

$2.68M

24K shares

What this filing means

KIDD MARK plans to sell 24K shares of IRON MOUNTAIN INC valued at approximately $2.68M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderKIDD MARKCIK 1732058
IssuerIRON MOUNTAIN INCCIK 1020569
Officer· EVP, GM Data Centers & ALM
Since Mar 2026
24K
Shares to sell
$2.68M
Approx. market value
6K
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months1
Sort

Restricted Stock Vesting

Compensation

2/23/2023
6K
Total acquired6K
Planned & Completed Dispositions4
Sort

Completed

Completed

Units to sell

6K

Market value

$616.3K

4/1/2026
Completed

Units to sell

6K

Market value

$643.6K

3/2/2026
Completed

Units to sell

6K

Market value

$649.0K

2/20/2026

Planned — Approximate Date

NYSEPlanned

Units to sell

6K

Market value

$767.5K

5/8/2026
Total

Units

24K

Value

$2.68M

KIDD MARK — Planned Insider Sale (Form 144) | Finecho