Institutional Ownership Iron Mountain Inc (IRM)
This table provides information about the institutional ownership of Iron Mountain Inc (IRM). We have compiled data on the 1,159 institutions that hold shares in the stock, with a total of 245 Million shares, which have been reported (via 13F filing form) to have a value of $22.4 Billion.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Janney Montgomery Scott LLC
|
Oct 27, 2025 Q3 2025 |
91,549
shares
|
$8.36 Million
0.02% of portfolio
|
Q3 2025
Added 0.93%
|
|
|
Arizona State Retirement System
|
Nov 03, 2025 Q3 2025 |
87,256
shares
|
$7.97 Million
0.05% of portfolio
|
Q3 2025
Added 1.63%
|
|
|
Sonora Investment Management Group, LLC
Tucson, AZ |
Oct 07, 2025 Q3 2025 |
87,250
shares
|
$7.97 Million
0.66% of portfolio
|
Q3 2025
Reduced 2.51%
|
|
|
Bnp Paribas Asset Management Holding S.A.
|
Nov 07, 2025 Q3 2025 |
86,699
shares
|
$7.92 Million
0.02% of portfolio
|
Q3 2025
Added 6.24%
|
|
|
Thompson Siegel & Walmsley LLC
|
Nov 12, 2025 Q3 2025 |
86,400
shares
|
$7.89 Million
0.14% of portfolio
|
Q3 2025
Added 30.51%
|
|
|
Avantax Advisory Services, Inc.
|
Aug 08, 2025 Q2 2025 |
85,172
shares
|
$7.78 Million
0.05% of portfolio
|
Q2 2025
Added 15.26%
|
|
|
Summit Partners Public Asset Management, LLC
Boston, MA |
Nov 14, 2025 Q3 2025 |
85,000
shares
|
$7.77 Million
0.23% of portfolio
|
Q3 2025
New holding
|
|
|
Chicago Capital, LLC
|
Oct 22, 2025 Q3 2025 |
84,016
shares
|
$7.68 Million
0.21% of portfolio
|
Q3 2025
Reduced 13.95%
|
|
|
Joel Greenblatt
Gotham Asset Management, LLC | New York, Ny
|
Nov 14, 2025 Q3 2025 |
83,924
shares
|
$7.67 Million
0.04% of portfolio
|
Q3 2025
Reduced 11.5%
|
|
|
Neos Investment Management LLC
Westport, CT |
Nov 07, 2025 Q3 2025 |
82,878
shares
|
$7.57 Million
0.07% of portfolio
|
Q3 2025
Added 112.18%
|
|
|
Bank Of Nova Scotia
|
Nov 14, 2025 Q3 2025 |
82,873
shares
|
$7.57 Million
0.02% of portfolio
|
Q3 2025
Added 96.43%
|
|
|
Eagle Asset Management Inc
St Petersburg, FL |
Nov 12, 2024 Q3 2024 |
82,407
shares
|
$7.53 Million
0.06% of portfolio
|
Q3 2024
Reduced 41.37%
|
|
|
Foresight Capital Management Advisors, Inc.
|
Oct 15, 2025 Q3 2025 |
82,051
shares
|
$7.5 Million
4.85% of portfolio
|
Q3 2025
Reduced 5.38%
|
|
|
Met Life Investment Management, LLC
Whippany, NJ |
Nov 13, 2025 Q3 2025 |
81,512
shares
|
$7.45 Million
0.04% of portfolio
|
Q3 2025
Reduced 2.4%
|
|
|
Tcw Group Inc
|
Nov 14, 2025 Q3 2025 |
81,023
shares
|
$7.4 Million
0.08% of portfolio
|
Q3 2025
New holding
|
|
|
Varma Mutual Pension Insurance CO
Varma, H9 |
Nov 06, 2025 Q3 2025 |
80,938
shares
|
$7.4 Million
0.07% of portfolio
|
Q3 2025
Added 8.59%
|
|
|
Nissay Asset Management Corp
Tokyo, M0 |
Nov 14, 2025 Q3 2025 |
80,683
shares
|
$7.37 Million
0.05% of portfolio
|
Q3 2025
Reduced 0.16%
|
|
|
Hudson Bay Capital Management LP
Greenwich, CT |
Dec 15, 2025 Q3 2025 |
80,657
shares
|
$7.37 Million
0.03% of portfolio
|
Q3 2025
Added 1220.51%
|
|
|
State Of Michigan Retirement System
|
Nov 05, 2025 Q3 2025 |
79,846
shares
|
$7.3 Million
0.04% of portfolio
|
Q3 2025
Reduced 0.5%
|
|
|
Prudential PLC
London, England, X0 |
Nov 13, 2025 Q3 2025 |
77,572
shares
|
$7.09 Million
0.06% of portfolio
|
Q3 2025
Added 68.05%
|
|
|
Salem Investment Counselors Inc
Winston Salem, NC |
Oct 07, 2025 Q3 2025 |
77,236
shares
|
$7.06 Million
0.23% of portfolio
|
Q3 2025
Added 0.0%
|
|
|
Czech National Bank
Prague, 2N |
Oct 08, 2025 Q3 2025 |
75,013
shares
|
$6.85 Million
0.05% of portfolio
|
Q3 2025
Added 4.01%
|
|
|
Wealthfront Advisers LLC
|
Nov 06, 2025 Q3 2025 |
74,201
shares
|
$6.78 Million
0.02% of portfolio
|
Q3 2025
Reduced 2.34%
|
|
|
Asr Vermogensbeheer N.V.
Utrecht, P7 |
Oct 28, 2025 Q3 2025 |
73,176
shares
|
$6.69 Million
0.09% of portfolio
|
Q3 2025
Reduced 0.69%
|
|
|
Pine Bridge Investments, L.P.
|
Nov 14, 2025 Q3 2025 |
72,235
shares
|
$6.6 Million
0.06% of portfolio
|
Q3 2025
Reduced 38.78%
|
|