MEANEY WILLIAM L

PrivateCIK: 1566391
Location

PORTSMOUTH, NH

Senior insider sale

President and CEO at IRON MOUNTAIN INC — senior position signals high conviction

$32.98M

312.75K shares

What this filing means

MEANEY WILLIAM L plans to sell 312.75K shares of IRON MOUNTAIN INC valued at approximately $32.98M. 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.

InsiderMEANEY WILLIAM LCIK 1566391
IssuerIRON MOUNTAIN INCCIK 1020569
DirectorOfficer· President and CEO
Since Mar 2026
312.75K
Shares to sell
$32.98M
Approx. market value
98.66K
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months1
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Restricted Stock Vesting

Compensation

3/1/2026
98.66K
Total acquired98.66K
Planned & Completed Dispositions4
Sort

Completed

Completed

Units to sell

137.13K

Market value

$15.00M

3/2/2026
Completed

Units to sell

38.47K

Market value

$4.16M

2/20/2026
Completed

Units to sell

38.48K

Market value

$3.20M

1/2/2026

Planned — Approximate Date

NYSEPlanned

Units to sell

98.66K

Market value

$10.62M

3/3/2026
Total

Units

312.75K

Value

$32.98M

MEANEY WILLIAM L — Planned Insider Sale (Form 144) | Finecho