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Iron Mountain (IRM)
NYSE:IRM
US Market
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Iron Mountain (IRM) Ownership - Who Owns Iron Mountain?

4,069 Followers

Iron Mountain (IRM) Ownership Overview

0.84%26.33%17.38%30.34%25.10%
17.38% Other Institutional Investors
30.34% ETFs
25.10% Public Companies and Individual Investors
The ownership structure of Iron Mountain (IRM) stock is a mix of institutional, retail, and individual investors. Approximately 74.05% of the company’s stock is owned by Institutional Investors, 0.84% is owned by Insiders, and 25.10% is owned by Public Companies and Individual Investors.
The ownership structure of Iron Mountain (IRM) stock is a mix of institutional, retail, and individual investors. Approximately 43.71% of the company’s stock is owned by Institutional Investors, 0.84% is owned by Insiders, and 30.34% is owned by Public Companies and Individual Investors.

Recent Insider Trading Activity

Date
Name
Activity
Value
Mar 03, 2026
xxxxxxxxxxxxx
$762160
Nov 21, 2025
xxxxxxxxxxxxx
$2954
Jun 05, 2025
xxxxxxxxxxxxx
$89973
Jun 03, 2025
xxxxxxxxxxxxx
$1702025

Recent Hedge Fund Trading Activity

Top Shareholders

Holder
# of Shares
Type
% Holding
Value
42,289,872Institution14.21%5,423,676,084
27,594,391Institution9.27%3,538,980,646
18,294,331Institution6.15%2,346,247,951
12,620,760Institution4.24%1,618,612,470
11,025,699Institution3.71%1,414,045,897
5,019,821Institution1.69%643,792,043
3,449,439Institution1.16%442,390,552
3,277,215Institution1.10%420,302,824
3,091,475Institution1.04%396,481,669
2,838,080Institution0.95%363,983,760

Top Mutual Fund Holders

Holder
# of Shares
Type
% Holding
Value
27,594,391Institution9.27%3,538,980,646
11,025,699Institution3.71%1,414,045,897
5,019,821Institution1.69%643,792,043
3,091,475Institution1.04%396,481,669
2,760,718Institution0.93%354,062,084
2,326,030Institution0.78%298,313,348
2,117,169Institution0.71%271,526,924
2,097,613Institution0.71%269,018,867
2,005,788Institution0.67%257,242,311
1,937,599Institution0.65%248,497,072

Top ETF Holders

Holder
# of Shares
Type
% Holding
Value
8,963,127Institution3.01%1,129,264,371
7,671,671Institution2.58%966,553,829
6,071,337Institution2.04%620,126,361
3,885,858Institution1.31%498,361,289
3,552,262Institution1.19%450,533,389
3,525,774Institution1.19%328,002,755
2,605,000Institution0.88%328,203,950
2,480,547Institution0.83%314,607,776
2,091,841Institution0.70%265,308,194
1,564,179Institution0.53%200,605,957

FAQ

Who Owns Iron Mountain (IRM)?
According to the latest TipRanks data, approximately 17.38% of the company's stock is held by institutional investors, 0.84% is held by insiders, and 25.10% is held by retail investors.
    What percentage of Iron Mountain (IRM) stock is held by institutional investors?
    According to the latest TipRanks data, approximately 17.38% of Iron Mountain (IRM) stock is held by institutional investors.
      What percentage of Iron Mountain (IRM) stock is held by retail investors?
      According to the latest TipRanks data, approximately 25.10% of Iron Mountain (IRM) stock is held by retail investors.
        Who owns the most shares of Iron Mountain (IRM)?
        Vanguard owns the most shares of Iron Mountain (IRM).
          What is the significance of the ownership structure for a publicly traded company?
          The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.