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Iron Mountain Inc

IRM
Exchange
NYSE
Industry
Real Estate Investment Trusts
SEC CIK
0001020569

In the last 90 days, Iron Mountain Inc insiders filed 0 open-market purchases and 6 sales; 1,173 institutions reported holding it in 13F filings for Q2 2026, worth $32.4B in total; no superinvestor holds it.

Q3 2021 vs. Q2 2021

How the institutions holding Iron Mountain Inc changed between Q2 2021 and Q3 2021.

All holders in Q3 2021All holders in Q2 2021

13F holders of IRM: Q2 2021 compared with Q3 2021
MeasureQ2 2021Of which not filed for Q3 2021Q3 2021Change
Holders6877711+31
Shares229.0M486.7K228.6M+133.0K (+0.1%)
Value$9.70B$20.6M$9.94B+$260.5M (+2.7%)

7 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (73)

Institutions that held Iron Mountain Inc at the end of Q3 2021 but not at the end of Q2 2021.

Institutions new to IRM in Q3 2021
InstitutionSharesValue% of portfolio
Pictet Asset Management SA239,896$10.4M0.01%
Evergreen Capital Management LLC94,562$4.11M0.19%
National Pension Service83,245$3.62M0.01%
Squarepoint Ops LLC79,546$3.46M0.02%
U.S. Capital Wealth Advisors, LLC77,204$2.86M0.12%
G&S Capital LLC60,273$2.62M1.44%
Nepsis, Inc.59,790$2.60M0.82%
D. E. Shaw & Co., Inc.54,566$2.37M0.00%
Roberts Wealth Advisors, LLC42,212$1.83M0.73%
Mathes Company, Inc.39,150$1.70M0.63%
Eqis Capital Management, Inc.28,517$1.24M0.09%
EAM Global Investors LLC28,208$1.23M0.29%
Intrua Financial, LLC26,101$1.19M0.22%
Edgestream Partners, L.P.26,360$1.15M0.07%
Bramshill Investments, LLC23,139$1.00M0.09%
New England Research & Management, Inc.23,100$1.00M0.53%
Eagle Ridge Investment Management19,702$856.0K0.10%
NorthCoast Asset Management LLC19,583$851.0K0.03%
Marshall Wace, LLP19,503$847.0K0.00%
Koshinski Asset Management, Inc.17,197$747.2K0.06%
Point72 Hong Kong Ltd14,904$648.0K0.05%
Diamant Asset Management, Inc.14,775$642.0K0.53%
Spirit of America Management Corp13,250$576.0K0.12%
Integrated Wealth Concepts LLC12,160$528.0K0.02%
Jefferies Group LLC11,198$486.6K0.01%
Fox Run Management, L.L.C.10,927$475.0K0.30%
Iron Financial, LLC10,895$473.0K0.23%
Clear Street Markets LLC10,400$452.0K0.10%
Capstone Investment Advisors, LLC10,374$451.0K0.01%
Advisors Capital Management, LLC10,130$440.0K0.01%
Capitolis Advisors LLC9,723$438.0K0.00%
HighPoint Advisor Group LLC9,513$413.0K0.04%
AMJ Financial Wealth Management9,396$408.0K0.17%
Herold Advisors, Inc.9,000$391.0K0.15%
Navellier & Associates Inc8,906$387.0K0.06%
Dowling & Yahnke LLC8,302$361.0K0.02%
Diversified Trust Co8,099$352.0K0.01%
Campbell & CO Investment Adviser LLC6,186$269.0K0.09%
Laird Norton Trust Company, LLC6,090$264.0K0.03%
Jump Financial, LLC5,964$260.0K0.02%
Norris Financial Group, LLC5,872$255.1K0.17%
Bluefin Capital Management, LLC5,560$242.0K0.03%
Ieq Capital, LLC5,461$237.0K0.01%
Montag A & Associates Inc5,215$227.0K0.01%
Busey Wealth Management5,180$226.0K0.01%
Synovus Financial Corp4,985$216.0K0.00%
AlphaStar Capital Management, LLC4,726$216.0K0.01%
Edmp, Inc.4,688$207.0K0.22%
Laurel Wealth Advisors, Inc.4,653$202.0K0.04%
Cresset Asset Management, LLC4,603$202.0K0.00%
Machina Capital S.A.S.4,592$200.0K0.43%
Guidance Point Advisors, LLC4,000$173.0K0.06%
Tower View Investment Management & Research LLC1,500$65.0K0.04%
Optiver Holding B.V.1,505$65.0K0.00%
Hexagon Capital Partners LLC1,141$50.0K0.01%
Meridian Wealth Partners, LLC1,056$46.0K0.01%
Danda Trouve Investment Management, Inc.635$28.0K0.03%
TCTC Holdings, LLC625$27.0K0.00%
Mascoma Wealth Management LLC500$22.0K0.01%
Kowal Investment Group, LLC494$21.0K0.01%
AdvisorNet Financial, Inc378$16.0K0.00%
Graves-Light Private Wealth Management, Inc.330$14.0K0.00%
Systematic Alpha Investments, LLC215$10.0K0.00%
Oakworth Capital, Inc.180$8.00K0.00%
Kozak & Associates, Inc.147$7.00K0.00%
Syverson Strege & Co133$6.00K0.00%
Bell Investment Advisors, Inc147$6.00K0.00%
Allworth Financial LP114$5.00K0.00%
Wealth Quarterback LLC75$4.00K0.00%
Red Tortoise LLC94$4.00K0.00%
Fieldpoint Private Securities, LLC54$2.00K0.00%
Key Financial Inc1$00.00%
Consolidated Planning Corp2$00.00%

Sold out (42)

Institutions that held Iron Mountain Inc at the end of Q2 2021 and filed for Q3 2021 without it.

Institutions that sold out of IRM in Q3 2021
InstitutionShares, Q2 2021Value, Q2 2021
Maplelane Capital, LLC212,453$8.99M
Voloridge Investment Management, LLC77,149$3.27M
Concorde Asset Management, LLC40,405$1.71M
Balyasny Asset Management LLC37,365$1.58M
Tibra Equities Europe Ltd24,574$1.04M
Alethea Capital Management, LLC24,456$1.03M
Polar Asset Management Partners Inc.20,083$850.0K
Y-Intercept (Hong Kong) Ltd15,981$676.0K
Connor, Clark & Lunn Investment Management Ltd.15,649$662.0K
Cohen & Steers, Inc.14,348$607.0K
Quantbot Technologies LP13,081$553.0K
Aigen Investment Management, LP10,860$460.0K
Nomura Holdings Inc10,070$426.0K
Southport Management, L.L.C.10,000$423.2K
CenterStar Asset Management, LLC–$369.0K
BP PLC8,023$340.0K
ExodusPoint Capital Management, LP8,013$339.0K
Inscription Capital, LLC7,110$301.0K
Seeyond6,842$289.0K
Dynamic Technology Lab Private Ltd6,624$280.0K
Gsa Capital Partners LLP6,059$256.0K
Financial Advocates Investment Management5,797$246.0K
Caxton Associates LP5,699$241.0K
Level Four Advisory Services, LLC5,537$234.0K
Ergoteles LLC5,193$220.0K
CCG Wealth Management, LLC5,130$217.0K
Quantamental Technologies LLC5,060$214.0K
Coldstream Capital Management Inc5,038$213.0K
Stevens Capital Management LP5,025$213.0K
Stratos Wealth Partners, LTD.5,006$212.0K
Wealthsource Partners, LLC5,005$212.0K
Cambria Investment Management, L.P.4,806$203.0K
Brighton Jones LLC4,722$200.0K
Trust Co of Vermont3,120$132.0K
Credit Agricole S A1,920$81.0K
Enterprise Financial Services Corp1,408$60.0K
WealthShield Partners, LLC1,409$60.0K
West Branch Capital LLC1,400$59.0K
Red Door Wealth Management, LLC399$16.0K
CVA Family Office, LLC145$6.00K
Stonebridge Capital Advisors LLC36$2.00K
Standard Family Office LLC29$1.00K

Not filed for Q3 2021 yet (7)

Institutions that held Iron Mountain Inc at the end of Q2 2021 and haven't filed a 13F for Q3 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding IRM in Q2 2021 that haven't filed for Q3 2021
InstitutionShares, Q2 2021Value, Q2 2021
Pictet Asset Management Ltd242,822$10.3M
QS Investors, LLC214,023$9.06M
Cipher Capital LP25,409$1.07M
Castleview Partners, LLC2,385$101.0K
CWM, LLC1,934$82.0K
FormulaFolio Investments, LLC89$4.00K
First Horizon Corp78$3.00K