KIDD MARK

PrivateCIK: 1732058
Location

PORTSMOUTH, NH

Senior insider sale

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

$2.94M

24K shares

What this filing means

KIDD MARK plans to sell 24K shares of IRON MOUNTAIN INC valued at approximately $2.94M. 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
$2.94M
Approx. market value
6K
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months5
Sort

Restricted Stock Vesting

Compensation

2/16/2021
2.36K

Restricted Stock Vesting

Compensation

2/15/2021
224.00

Restricted Stock Vesting

Compensation

2/16/2020
2K

Restricted Stock Vesting

Compensation

2/15/2020
992.00

Restricted Stock Vesting

Compensation

3/9/2017
428.00
Total acquired6K
Planned & Completed Dispositions4
Sort

Completed

Completed

Units to sell

6K

Market value

$736.2K

8/7/2026
Completed

Units to sell

6K

Market value

$753.7K

7/1/2026
Completed

Units to sell

6K

Market value

$760.2K

6/1/2026

Planned — Approximate Date

NYSEPlanned

Units to sell

6K

Market value

$693.6K

9/1/2026
Total

Units

24K

Value

$2.94M