IRM

IRON MTN INC DEL

IRM·46284V101·US·REIT·Real Estate - REIT - Specialty-13D/G

IRM (IRON MTN INC DEL) is held by 292 institutional investors as of Q1 2026. Largest holders: BlackRock, Inc. ($3.4B), VANGUARD PORTFOLIO MANAGEMENT LLC ($2.6B), VANGUARD CAPITAL MANAGEMENT LLC ($1.9B). Net institutional sentiment: Mixed. In Q1 2026, 2 members of Congress and 169 funds bought IRM.

292
Holders
(26 Elite)
$21.7B
Total Value
58% (293)
Consensus
169 buying - 124 selling
13F: Insider & Congress:
IRM

Smart Money Verdict

View all
Held by 292 funds
26 elite

Who's Trading

InsiderBDBorges DanielSell $902KMay 21, 2026
InsiderMLMeaney William LSell $1.9MMay 8, 2026
InsiderKMKidd MarkSell $767KMay 8, 2026
ActivistC&Cohen & Steers, Inc.4.9%May 7, 2026
InsiderDPDAUTEN KENT PVest 2K shMay 7, 2026
ActivistVAVanguard Capital Management7.3%Apr 30, 2026
CongressMarkwayne MullinMarkwayne MullinSale $1,001 - $15,000Feb 4, 2026
CongressMarkwayne MullinMarkwayne MullinSale $15,001 - $50,000Dec 18, 2025
CongressMarkwayne MullinMarkwayne MullinSale $1,001 - $15,000Dec 18, 2025
CongressRohit KhannaRohit KhannaBuy $1,001 - $15,000Dec 12, 2025

Top Holders

Fund
Action
Shares
Value
Weight
Est. P&L
Conviction
Increased
33M(+0.3%)$3.4B0.1%+23.96%
32
New
25M$2.6B0.1%+12.74%
53
New
18.8M$1.9B0.0%+12.74%
44
Increased
17.6M(+3.9%)$1.8B0.1%+68.40%
33
Increased
8.5M(+2.3%)$863.7M0.1%+193.05%
33
Decreased
7.5M(-6.3%)$764.5M0.0%+35.28%
0
Increased
4.7M(+29.3%)$475.2M0.0%+33.28%
39
Increased
4.6M(+8.5%)$466.4M0.2%+39.13%
41
Increased
4.6M(+2.8%)$464.9M0.1%+138.07%
32
Decreased
4.2M(-0.1%)$423.9M0.1%+111.93%
0
Increased
4M(+3.4%)$409.9M0.1%+196.53%
32
Decreased
3.9M(-11.2%)$400.5M0.1%+59.52%
0
Decreased
3.1M(-6.6%)$320.2M0.1%+110.84%
0
Increased
3.1M(+21.6%)$315.8M0.1%+127.66%
44
Increased
2.4M(+4.6%)$246.8M0.3%+59.80%
38
Decreased
2.3M(-12.2%)$235.9M2.4%+45.29%
0
Increased
2.2M(+45.3%)$226.4M0.0%+26.14%
42
Increased
2.1M(+25.3%)$216.2M0.7%+26.02%
53
Decreased
2.1M(-2.8%)$211.3M0.1%+45.41%
0
Increased
2.1M(+10.1%)$207.2M0.0%+23.36%
34

Showing 1-20 of 304

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Data sourced from four SEC data sources: 13F, Form 4, 13D/13G, and STOCK Act. Not financial advice. Full disclaimer

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