IRM

Iron Mountain Inc$121.66 1.51%
Real EstateUSCUSIP 46284V101· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
675
+52 QoQ
13F Value (tracked)
$22.7B
Insider Net · 180d
-$81.8M
0↑ 7↓
Recent Filings
15
Smart-money sentimentBearish
BearishBullish
13F funds (latest Q)21 adding · 20 trimming
Insider net (180d)-$81.8M

Price & smart-money activity

$121.66 1.51%5Y +184.7%
$35.02$61.18$87.34$113.50$139.662021202220232024202520264912513739844162918
Hover for who · click for detailEnd-of-day closing prices52w $78.86 – $133.06
Build

Ask your agent what changed in IRM

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/IRM/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for IRM.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

Top institutional holders

675 tracked 13F filers
2 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$3.4B
33.0M
+0.3%
Added · +102K sh
Q1 2026
2VANGUARD PORTFOLIO MANAGEMENT LLC
$2.6B
25.0M
New
+25.0M sh
Q1 2026
3VANGUARD CAPITAL MANAGEMENT LLC
$1.9B
18.8M
New
+18.8M sh
Q1 2026
4STATE STREET CORP
$1.8B
17.6M
+3.9%
Added · +663K sh
Q1 2026
5GEODE CAPITAL MANAGEMENT, LLC
$863.7M
8.5M
+2.3%
Added · +193K sh
Q1 2026
6FMR LLC
$764.5M
7.5M
−6.3%
Reduced · −500K sh
Q1 2026
7MORGAN STANLEY
$475.2M
4.7M
+29%
Added · +1.1M sh
Q1 2026
8PRINCIPAL FINANCIAL GROUP INC
$466.4M
4.6M
+8.5%
Added · +358K sh
Q1 2026
9DIMENSIONAL FUND ADVISORS LP
$464.9M
4.6M
+2.8%
Added · +123K sh
Q1 2026
10NORGES BANK
$368.9M
4.4M
+8.7%
Added · +358K sh
Q4 2025
11NORTHERN TRUST CORP
$423.9M
4.2M
−0.1%
Reduced · −2K sh
Q1 2026
12CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$409.9M
4.0M
+3.4%
Added · +133K sh
Q1 2026
13Legal & General Group Plc
$320.2M
3.1M
−6.6%
Reduced · −221K sh
Q1 2026
14Daiwa Securities Group Inc.
$317.4M
3.1M
−15%
Reduced · −547K sh
Q1 2026
15DEUTSCHE BANK AG\
$315.8M
3.1M
+22%
Added · +550K sh
Q1 2026
16PRUDENTIAL FINANCIAL INC
$246.8M
2.4M
+4.6%
Added · +106K sh
Q1 2026
17CENTERSQUARE INVESTMENT MANAGEMENT LLC
$235.9M
2.3M
−12%
Reduced · −321K sh
Q1 2026
18GOLDMAN SACHS GROUP INC
$226.4M
2.2M
+45%
Added · +691K sh
Q1 2026
19JPMORGAN CHASE & CO
$207.2M
2.1M
+10%
Added · +195K sh
Q1 2026
20Vontobel Holding Ltd.
$216.2M
2.1M
+25%
Added · +428K sh
Q1 2026
21Nuveen, LLC
$211.3M
2.1M
−2.8%
Reduced · −60K sh
Q1 2026
22AMERIPRISE FINANCIAL INC
$189.1M
1.9M
+6.1%
Added · +107K sh
Q1 2026
23AQR CAPITAL MANAGEMENT LLC
$183.1M
1.8M
+100%
Added · +923K sh
Q1 2026
24VANGUARD FIDUCIARY TRUST CO
$168.8M
1.7M
New
+1.7M sh
Q1 2026
25Bank of New York Mellon Corp
$166.0M
1.6M
−3.6%
Reduced · −61K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
2
funds
Added
19
funds
Reduced
20
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$81.8M
7 insiders
Net
-$81.8M
47 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Jul 6, 2026Simons DoyleDirectorGrant (A)339$40K
Jul 6, 2026Samuels Theodore R. IIDirectorGrant (A)99$12K
Jul 2, 2026Samuels Theodore R. IIDirectorGrant (A)311$36K
Jul 1, 2026Meaney William LPresident and CEO, DirectorOption exercise (M)38K$1.4M
Jul 1, 2026Meaney William LPresident and CEO, DirectorSell (S)18K$2.1M
Jul 1, 2026Meaney William LPresident and CEO, DirectorSell (S)10K$1.2M
Jul 1, 2026Meaney William LPresident and CEO, DirectorSell (S)7K$888K
Jul 1, 2026Meaney William LPresident and CEO, DirectorSell (S)2K$200K
Jul 1, 2026Meaney William LPresident and CEO, DirectorSell (S)3K$318K
Jul 1, 2026Meaney William LPresident and CEO, DirectorOption exercise (M)38K
Jul 1, 2026Kidd MarkEVP, GM Data Centers & ALMSell (S)6K$754K
Jun 1, 2026Meaney William LPresident and CEO, DirectorOption exercise (M)38K$1.4M

Institutional ownership over time

666 funds+83 since Q3 2024
0333666Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $22.3B · 1 values withheld

Funds that own IRM also own

CompanyCo-held byCombined value
NVIDIA CORPNVDA339 funds$378.2B
APPLE INCAAPL337 funds$291.9B
MICROSOFT CORPMSFT337 funds$261.7B
META PLATFORMS INC-CLASS AMETA337 funds$113.4B
ALPHABET INC-CL AGOOGL336 funds$170.5B
AMAZON.COM INCAMZN335 funds$195.3B
BROADCOM INCAVGO332 funds$142.2B
VISA INC-CLASS A SHARESV332 funds$59.7B
COSTCO WHOLESALE CORPCOST332 funds$42.5B
ELI LILLY & COLLY330 funds$73.4B
JPMORGAN CHASE & COJPM330 funds$69.9B
ALPHABET INC-CL CGOOG327 funds$117.0B

Ranked by how many of IRM's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

15 shown

Browse more

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for IRM. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.