IRON MOUNTAIN INC - IRM

Sector: Real Estate · Industry: Real Estate Investment Trusts

Website: No information yet · Social: No information yet

Company profile

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Q4 2025 · Q3 2025

Value (USD)

Total reported value ($000)

$21.51B

QoQ value delta ($000)

-$3.831B (-15.12%)

Implied price effect (QoQ)

-18.62%

Total shares

259,263,693

QoQ shares delta

+10,685,945 (+4.3%)

Total shares held by funds (by quarter)

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Top 25 only Full list

Early Q1 2026 data: only 9 institutional holders reported so far. More will appear as funds file with the SEC.

Manager	Value ($000)	Shares	% of 13F
VANGUARD GROUP INC	3,867,749	46,627,483	0.06%
BlackRock, Inc.	2,730,685	32,919,658	0.05%
COHEN & STEERS, INC.	1,568,110	18,903,716	2.83%
STATE STREET CORP	1,415,001	16,888,798	0.05%
GEODE CAPITAL MANAGEMENT, LLC	685,374	8,292,653	0.04%
FMR LLC	662,298	7,984,304	0.03%
NORGES BANK	368,889	4,447,133	0.04%
DIMENSIONAL FUND ADVISORS LP	367,418	4,429,359	0.08%
Invesco Ltd.	366,420	4,417,367	0.06%
PRINCIPAL FINANCIAL GROUP INC	349,020	4,207,596	0.18%
NORTHERN TRUST CORP	344,455	4,152,569	0.04%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	321,868	3,880,275	0.05%
Daiwa Securities Group Inc.	303,106	3,654,086	0.97%
MORGAN STANLEY	298,534	3,598,973	0.02%
Legal & General Group Plc	278,415	3,356,420	0.06%
Contour Asset Management LLC	234,929	2,832,182	5.48%
CENTERSQUARE INVESTMENT MANAGEMENT LLC	218,279	2,631,453	2.15%
DEUTSCHE BANK AG\	210,858	2,541,992	0.07%
PRUDENTIAL FINANCIAL INC	191,654	2,310,481	0.23%
Pictet Asset Management Holding SA	190,433	2,295,965	0.18%
Nuveen, LLC	176,511	2,127,931	0.05%
Capital World Investors	175,619	2,117,169	0.02%
JPMORGAN CHASE & CO	159,922	1,927,935	0.01%
AMERIPRISE FINANCIAL INC	142,472	1,744,405	0.03%
Vontobel Holding Ltd.	140,122	1,689,246	0.44%