KIDD MARK

PrivateCIK: 1732058
Location

PORTSMOUTH, NH

Senior insider sale

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

$2.90M

24K shares

What this filing means

KIDD MARK plans to sell 24K shares of IRON MOUNTAIN INC valued at approximately $2.90M. 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
$2.90M
Approx. market value
6K
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months7
Sort

Restricted Stock Vesting

Compensation

2/19/2023
299.00

Restricted Stock Vesting

Compensation

2/24/2022
996.00

Restricted Stock Vesting

Compensation

2/20/2022
1.25K

Restricted Stock Vesting

Compensation

2/19/2022
2.24K

Restricted Stock Vesting

Compensation

2/16/2019
398.00

Restricted Stock Vesting

Compensation

2/19/2017
334.00

Restricted Stock Vesting

Compensation

2/13/2017
485.00
Total acquired6K
Planned & Completed Dispositions4
Sort

Completed

Completed

Units to sell

6K

Market value

$760.2K

6/1/2026
Completed

Units to sell

6K

Market value

$767.5K

5/8/2026
Completed

Units to sell

6K

Market value

$616.3K

4/1/2026

Planned — Approximate Date

NYSEPlanned

Units to sell

6K

Market value

$753.7K

7/1/2026
Total

Units

24K

Value

$2.90M