Skip to main content

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 8 sales; 1,173 institutions reported holding it in 13F filings for Q2 2026, worth $32.4B in total; no superinvestor holds it.

Superinvestors holding IRM, Q2 2026

See all superinvestors

No superinvestor reported holding IRM in Q2 2026.

Moves by quarter

Superinvestors that opened, added to, trimmed or sold out of IRM each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.

  1. Q2 2024

    0 superinvestors holding at quarter end

    Sold out
    Maverick Capital
  2. Q1 2024

    1 superinvestor holding at quarter end

    Reduced
    Maverick Capital (−75.5%)
  3. Q4 2023

    1 superinvestor holding at quarter end

    New
    Maverick Capital