KIDD MARK

PrivateCIK: 1732058
Location

PORTSMOUTH, NH

KIDD MARK (EVP, GM Data Centers & ALM) sold 4.4% of their position (6K shares) of IRON MOUNTAIN INC on the open market

Open‑market sale worth $643.6K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderKIDD MARKCIK 1732058
IssuerIRON MOUNTAIN INCCIK 1020569
Officer· EVP, GM Data Centers & ALM
Since Mar 2026
-67.34K
Net shares
Net seller
$7.29M
Total sold
1
Open market trades
0B · 1S
4
Total transactions
149.77K acquired · 217.11K disposed
Non-Derivative Transactions3

Common Stock, par value $.01 per share

Direct
M · Option Exercise

Shares

+149.77K

Price / share

Trade value

% of position

305.1%
3/1/2026
49.08K198.85K

Common Stock, par value $.01 per share

Direct
F · Tax Withholding

Shares

61.34K

Price / share

$108.33

Trade value

$6.65M

% of position

30.8%
3/1/2026
198.85K137.51K

Common Stock, par value $.01 per share

Direct
S · Sale

Shares

6K

Price / share

$107.27

Trade value

$643.62K

% of position

4.4%
3/2/2026
137.51K131.51K
Total

Net shares

+82.43K

Net value

-$7.29M

Derivative Transactions1

Performance Units

Direct
M · Option Exercise
Converts to

Common Stock, par value $.01 per share

149.77K shares

Shares

149.77K

Strike price

Held after

0.00

Exercisable

3/1/2026
KIDD MARK — Insider Transaction (Form 4) Filed Mar 3, 2026 | Finecho