How many shares of IRM does NORTHERN TRUST CORP own?

As of 2026-Q2, NORTHERN TRUST CORP holds 4.2M shares of IRM (IRON MTN INC DEL).

What is NORTHERN TRUST CORP's IRM position worth?

As of 2026-Q2, NORTHERN TRUST CORP's IRM position is worth $533.4M.

In 2026-Q2, NORTHERN TRUST CORP increased their IRM position (+1.8% change in shares).

Based on available 13F filings, NORTHERN TRUST CORP first reported a position in IRM in 2019-Q1. They have held the position across 30 quarters.

Position history for NORTHERN TRUST CORP's holdings in IRON MTN INC DEL

Current Value

$533.4M

Current Shares

4.2M

Total Value Change

+$412.2M

Total Shares Change

+805,933

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	4.2M	+1.8%	$533.4M	0.1%	$126.31	32
2026-Q1	Decreased	4.2M	-0.1%	$423.9M	0.1%	$107.78	0
2025-Q4	Increased	4.2M	+3.0%	$344.5M	0.0%	$83.36	32
2025-Q3	Decreased	4M	-0.9%	$411M	0.1%	$99.31	0
2025-Q2	Decreased	4.1M	-4.7%	$417.2M	0.1%	$100.42	0
2025-Q1	Decreased	4.3M	-1.4%	$367.2M	0.1%	$82.89	0
2024-Q4	Increased	4.3M	+56.1%	$454.8M	0.1%	$100.08	44
2024-Q3	Decreased	2.8M	-6.6%	$329.4M	0.1%	$111.95	0
2024-Q2	Increased	3M	+1.8%	$266M	0.0%	$85.42	31
2024-Q1	Decreased	2.9M	-6.9%	$233.9M	0.0%	$75.89	0
2023-Q4	Decreased	3.1M	-20.0%	$219.1M	0.0%	$65.67	0
2023-Q3	Increased	3.9M	+1.2%	$232.7M	0.0%	$55.26	31
2023-Q2	Increased	3.9M	+1.9%	$219.7M	0.0%	$51.66	31
2023-Q1	Increased	3.8M	+1.6%	$200.7M	0.0%	$47.12	31
2022-Q4	Increased	3.7M	+16.9%	$186.3M	0.0%	$44.82	35
2022-Q3	Decreased	3.2M	-4.4%	$140.5M	0.0%	$38.95	0
2022-Q2	Decreased	3.3M	-20.2%	$162.8M	0.0%	$42.35	0
2022-Q1	Decreased	4.2M	-8.2%	$232M	0.0%	$48.13	0
2021-Q4	Increased	4.6M	+7.1%	$238.6M	0.0%	$45.03	33
2021-Q3	Increased	4.3M	+16.2%	$185M	0.0%	$37.51	35
2021-Q2	Decreased	3.7M	-1.6%	$155.1M	0.0%	$35.35	0
2021-Q1	Increased	3.7M	+3.0%	$137.8M	0.0%	$30.63	31
2020-Q4	Decreased	3.6M	-1.9%	$106.5M	0.0%	$23.74	0
2020-Q3	Decreased	3.7M	-1.8%	$98.6M	0.0%	$21.24	0
2020-Q2	Decreased	3.7M	-1.5%	$97.8M	0.0%	$19.98	0
2020-Q1	Increased	3.8M	+1.8%	$90.6M	0.0%	$18.88	30
2019-Q4	Increased	3.7M	+0.9%	$119.2M	0.0%	$23.52	30
2019-Q3	Increased	3.7M	+0.0%	$120M	0.0%	$23.44	30
2019-Q2	Increased	3.7M	+8.4%	$116M	0.0%	$22.39	33
2019-Q1	New	3.4M	-	$121.2M	0.0%	$24.88	42