Iron Mountain Inc - US REIT

$IRM
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Smart money positioned

22 of the Top-200 alpha managers hold $IRM as of the latest 13F snapshot.

13F holders
12
Insider buys · 90d
0
Congress · 90d
0

Smart Money · top-200 alpha cohort

22 holders · Q1 2026

$IRM is held by 22 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 3.25%, with an average of 0.20% of portfolio. Largest holder: ELCO Management Co., LLC at 3.25%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.

01
ELCO Management Co., LLC
3.25% NEW
α +10.8pts
02
Scion Asset Management, LLC Michael Burry
0.23% NEW
α +12.7pts
03
Certior Financial Group, LLC
0.22% held
α +11.1pts
04
Explore Capital Management, LLC
0.12% held
α +15.5pts
05
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
0.11% NEW
α +27.5pts

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Institutional holders

Top 10 of 12 · Source: 13F-HR
01
Vanguard Group Inc.
0.06% of portfolio
46,627,483 sh
02
State Street
0.06% of portfolio
17,551,633 sh
03
Citadel
0.03% of portfolio
374,954 sh
04
Citigroup Inc.
0.02% of portfolio
315,634 sh
05
Two Sigma
0.02% of portfolio
179,202 sh
06
Tudor Investment Corp. Et Al
0.02% of portfolio
37,208 sh
07
Erste Asset Management GmbH
0.02% of portfolio
24,000 sh
08
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
—
10,726 sh
09
Aigen Investment Management, LP
0.16% of portfolio
6,255 sh
10
Linscomb Wealth, Inc.
0.02% of portfolio
4,954 sh
See all 12 13F holders · Pro →

Insider activity · last 90 days

50 transactions · 15 filers
07 Jul 2026
Unknown —
· GRANT
—
—
A
07 Jul 2026
Unknown —
· GRANT
—
—
A
06 Jul 2026
Unknown —
· GRANT
—
—
A
02 Jul 2026
Unknown —
▼ SOLD
—
—
S
02 Jul 2026
Unknown —
· EX/ACQ
—
—
M
02 Jul 2026
Unknown —
▼ SOLD
—
—
S
02 Jul 2026
Unknown —
▼ SOLD
—
—
S
02 Jul 2026
Unknown —
▼ SOLD
—
—
S
02 Jul 2026
Unknown —
▼ SOLD
—
—
S
02 Jul 2026
Unknown —
▼ SOLD
—
—
S
02 Jul 2026
Unknown —
· EX/ACQ
—
—
M
01 Jun 2026
Kidd Mark —
▼ SOLD
6,000
$126.70
S

Transaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $IRM in the recent window.

Convergence · $IRM

Pattern cards reflect public SEC EDGAR and Congressional filing data only. Detection uses filing dates; trade execution dates may differ. Past convergence patterns do not predict future returns. Nothing here is investment advice.

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 13:36 UTC.