Question 1

How many shares of IRM does BlackRock, Inc. own?

Accepted Answer

As of 2026-Q2, BlackRock, Inc. holds 33.6M shares of IRM (IRON MOUNTAIN INC).

Question 2

What is BlackRock, Inc.'s IRM position worth?

Accepted Answer

As of 2026-Q2, BlackRock, Inc.'s IRM position is worth $4.2B.

Question 3

Is BlackRock, Inc. buying or selling IRM?

Accepted Answer

In 2026-Q2, BlackRock, Inc. increased their IRM position (+1.7% change in shares).

Question 4

When did BlackRock, Inc. first buy IRM?

Accepted Answer

Based on available 13F filings, BlackRock, Inc. first reported a position in IRM in 2024-Q4. They have held the position across 7 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	33.6M	+1.7%	$4.2B	0.1%	$126.31	32
2026-Q1	Increased	33M	+0.3%	$3.4B	0.1%	$107.78	32
2025-Q4	Increased	32.9M	+3.8%	$2.7B	0.0%	$83.36	33
2025-Q3	Increased	31.7M	+1.4%	$3.2B	0.1%	$99.31	32
2025-Q2	Decreased	31.3M	-11.2%	$3.2B	0.1%	$100.42	0
2025-Q1	Increased	35.2M	+9.8%	$3B	0.1%	$82.89	35
2024-Q4	New	32.1M	-	$3.4B	0.1%	$100.08	44

IRM7 quarters

IRM
7 quarters