The above is AI-generated from public regulatory filings and summarizes historical data only. It is not investment advice and should not be used as the basis for any buy or sell decision.

Insider Trading (Form 4)

90d confidence

unique buyers

—

buy value

data as of 2026-07-16

12-Month Buy/Sell Activity

Apr 25

Jul 25

Oct 25

Jan 26

BuySell

操作	內部人	職稱	交易日	金額
賣出	Bhargava Mithu	EVP, GM Digital Business Unit	2026-03-19	$1.49M
賣出	Bhargava Mithu	EVP, GM Digital Business Unit	2026-03-19	$1.32M
賣出	Bhargava Mithu	EVP, GM Digital Business Unit	2026-03-19	$2K
賣出	Bhargava Mithu	EVP, GM Digital Business Unit	2026-03-19	$2.13M
賣出	Bhargava Mithu	EVP, GM Digital Business Unit	2026-03-19	$1.31M
賣出	Meaney William L	President and CEO	2026-03-05	$2.77M
賣出	Meaney William L	President and CEO	2026-03-05	$3.65M
賣出	Meaney William L	President and CEO	2026-03-05	$4.07M

View all insider trades →

Form 144 Pre-Sale Notices

Filings (90d)

$5.59M

Total Est. Value

44K shares

Planned Shares

Last Filed 2026-07-01

Filer	Title/Relationship	Filing Date	Planned Shares	Est. Value
Meaney William L	Officer, Director	2026-07-01	38K shares	$4.83M
Kidd Mark	Officer	2026-07-01	6K shares	$754K

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

FAQ

Who are the top institutional investors holding IRON MOUNTAIN INC (IRM)?

Major stakeholders currently include BlackRock, Inc. ($3.4B), Vanguard Portfolio Management LLC ($2.6B), Vanguard Capital Management LLC ($1.9B). Based on the latest 13F filings, there are a total of 1080 tracked investment funds and institutions maintaining positions in IRM.

What is the overall institutional sentiment toward IRM recently?

Institutional sentiment appears Bullish (Net Buying). During the most recent reporting quarter, the stock experienced a net inflow of $4.7B, driven by 559 managers accumulating shares while 435 reduced their exposure.

Which institutions have been selling or reducing their IRM positions?

In the latest period, 347 funds trimmed their holdings, and 88 managers completely exited their positions. The aggregate reported sell value was $8.2B.

Are there any notable investors adding IRM to their portfolios?

Yes, buying activity remains notable. 161 institutions opened new positions in {ticker}, and 398 existing holders added to their shares. The total reported buy value for the quarter amounted to $13.1B.