13F Filings/IRM

IRON MTN INC DEL (IRM): Institutional Ownership

Hedge funds and institutional managers reporting a position in IRM · Real Estate. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
20
13F filers
Aggregate Value
$214.8M
Across holders
Last Price
$132.44
2026-06-26
Sector
Real Estate
GICS
Holder activity10 new5 added5 reduced
Institutional Holders of IRM
↗
20 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
Hedge Fund590K$60.3M28.1%0.1%Reduced$-6.8MQ1 2026
SOROS FUND MANAGEMENT LLC
CIK 0001029160
Family Office310K$31.7M14.7%0.3%Reduced$-1.8MQ1 2026
Schonfeld Strategic Advisors LLC
CIK 0001665241
Hedge Fund249K$25.4M11.8%0.2%Added+$4.0MQ1 2026
Hudson Bay Capital Management LP
CIK 0001393825
Hedge Fund191K$19.5M9.1%0.1%New—Q1 2026
Verition Fund Management LLC
CIK 0001454027
Hedge Fund209K$17.3M8.1%0.1%New—Q4 2025
BALYASNY ASSET MANAGEMENT LLC
CIK 0001218710
Hedge Fund129K$13.1M6.1%0.0%Reduced$-8.0MQ1 2026
Walleye Capital LLC
CIK 0001758720
Hedge Fund120K$12.2M5.7%0.1%New—Q1 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund101K$10.3M4.8%0.0%Added+$1.0MQ1 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund81K$8.3M3.9%0.0%New—Q1 2026
Man Group plc
CIK 0001637460
Hedge Fund57K$4.8M2.2%0.0%New—Q4 2025
Gotham Asset Management, LLC
CIK 0001510387
Hedge Fund40K$4.1M1.9%0.0%Added+$121KQ1 2026
TUDOR INVESTMENT CORP ET AL
CIK 0000923093
Hedge Fund37K$3.8M1.8%0.0%Added+$1.6MQ1 2026
ExodusPoint Capital Management, LP
CIK 0001736225
Hedge Fund13K$1.3M0.6%0.0%New—Q3 2025
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund6K$589K0.3%0.0%Added+$559KQ1 2026
Bridgewater Associates, LP
CIK 0001350694
Hedge Fund5K$479K0.2%0.0%New—Q1 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund4K$409K0.2%0.0%Reduced$-29.2MQ1 2026
Fisher Asset Management, LLC
CIK 0000850529
Institutional Manager3K$356K0.2%0.0%Reduced$-75KQ1 2026
Brevan Howard Capital Management LP
CIK 0001512857
Hedge Fund3K$334K0.2%0.0%New—Q1 2026
ICONIQ Capital, LLC
CIK 0001569709
Family Office3K$286K0.1%0.0%New—Q2 2025
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund2K$245K0.1%0.0%New—Q1 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Reduced
Hedge Fund
$60.3M· 28.1% of total· 0.1% port· 590K sh· $-6.8M QoQ· Q1 2026
SOROS FUND MANAGEMENT LLCReduced
Family Office
$31.7M· 14.7% of total· 0.3% port· 310K sh· $-1.8M QoQ· Q1 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$25.4M· 11.8% of total· 0.2% port· 249K sh· +$4.0M QoQ· Q1 2026
Hudson Bay Capital Management LPNew
Hedge Fund
$19.5M· 9.1% of total· 0.1% port· 191K sh· — QoQ· Q1 2026
Verition Fund Management LLCNew
Hedge Fund
$17.3M· 8.1% of total· 0.1% port· 209K sh· — QoQ· Q4 2025
BALYASNY ASSET MANAGEMENT LLCReduced
Hedge Fund
$13.1M· 6.1% of total· 0.0% port· 129K sh· $-8.0M QoQ· Q1 2026
Walleye Capital LLCNew
Hedge Fund
$12.2M· 5.7% of total· 0.1% port· 120K sh· — QoQ· Q1 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$10.3M· 4.8% of total· 0.0% port· 101K sh· +$1.0M QoQ· Q1 2026
Qube Research & Technologies LtdNew
Hedge Fund
$8.3M· 3.9% of total· 0.0% port· 81K sh· — QoQ· Q1 2026
Man Group plcNew
Hedge Fund
$4.8M· 2.2% of total· 0.0% port· 57K sh· — QoQ· Q4 2025
Gotham Asset Management, LLCAdded
Hedge Fund
$4.1M· 1.9% of total· 0.0% port· 40K sh· +$121K QoQ· Q1 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$3.8M· 1.8% of total· 0.0% port· 37K sh· +$1.6M QoQ· Q1 2026
ExodusPoint Capital Management, LPNew
Hedge Fund
$1.3M· 0.6% of total· 0.0% port· 13K sh· — QoQ· Q3 2025
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$589K· 0.3% of total· 0.0% port· 6K sh· +$559K QoQ· Q1 2026
Bridgewater Associates, LPNew
Hedge Fund
$479K· 0.2% of total· 0.0% port· 5K sh· — QoQ· Q1 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$409K· 0.2% of total· 0.0% port· 4K sh· $-29.2M QoQ· Q1 2026
Fisher Asset Management, LLCReduced
Institutional Manager
$356K· 0.2% of total· 0.0% port· 3K sh· $-75K QoQ· Q1 2026
Brevan Howard Capital Management LPNew
Hedge Fund
$334K· 0.2% of total· 0.0% port· 3K sh· — QoQ· Q1 2026
ICONIQ Capital, LLCNew
Family Office
$286K· 0.1% of total· 0.0% port· 3K sh· — QoQ· Q2 2025
RENAISSANCE TECHNOLOGIES LLCNew
Hedge Fund
$245K· 0.1% of total· 0.0% port· 2K sh· — QoQ· Q1 2026
← All 13F filings