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 7 sales; 1,177 institutions reported holding it in 13F filings for Q2 2026, worth $32.4B in total; no superinvestor holds it.
Key figures
- Market capClose on Nov 9, 2026
- $33.0B
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $15.1M in total
- 7
- 13F holdersQ2 2026, +94 vs. previous quarter
- 1,177
- 13F valueReported value at the end of Q2 2026
- $32.4B
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $6.90B
- +12.2% year over year
- Net income, FY2025
- $152.3M
- −17.1% year over year
- Free cash flow, FY2025
- -$931.6M
- No comparable prior period
- Revenue, Q3 FY2026
- $1.99B
- +13.5% year over year
Revenue flow, FY2025
Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.
Short interest
See short dataFrom FINRA, settlement date Oct 15, 2026.
- Short interest
- 7.15M
- Shares sold short
- Change
- +146.6K
- +2.1% vs. previous
- Days to cover
- 5.13
- At average daily volume
Superinvestors holding IRM, Q2 2026
Go to the superinvestors tabNo superinvestor reported holding IRM at the end of Q2 2026.
Latest insider trades
See all insider tradesOpen-market purchases and sales by Iron Mountain Inc insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Nov 9, 2026 (view filing)4:22 PM ET | Nov 6 | 3 days | Meaney William LPresident and CEO | SSaleCommon Stock, par value $.01 per share | −38.5K | $105.72 | −$4.07M | −100.0%0 after | 4 lots10b5-1 |
| Nov 3, 2026 (view filing)4:20 PM ET | Nov 2 | 1 day | McIntosh Greg WEVP, Chief Commercial Officer | SSaleCommon Stock, par value $.01 per share | −5.00K | $116.96 | −$584.8K | −7.1%65.6K after | 10b5-1 |
| Oct 5, 2026 (view filing)4:09 PM ET | Oct 1 | 4 days | Meaney William LPresident and CEO | SSaleCommon Stock, par value $.01 per share | −38.5K | $110.45 | −$4.25M | −100.0%0 after | 3 lots10b5-1 |
| Oct 5, 2026 (view filing)4:06 PM ET | Oct 1 | 4 days | McIntosh Greg WEVP, Chief Commercial Officer | SSaleCommon Stock, par value $.01 per share | −5.00K | $110.72 | −$553.6K | −6.6%70.6K after | 10b5-1 |
| Sep 2, 2026 (view filing)4:27 PM ET | Sep 1 | 1 day | Meaney William LPresident and CEO | SSaleCommon Stock, par value $.01 per share | −38.5K | $114.08 | −$4.39M | −100.0%0 after | 4 lots10b5-1 |
| Sep 2, 2026 (view filing)4:22 PM ET | Sep 1 | 1 day | McIntosh Greg WEVP, Chief Commercial Officer | SSaleCommon Stock, par value $.01 per share | −5.00K | $115.60 | −$578.0K | −6.2%75.6K after | 10b5-1 |
| Sep 2, 2026 (view filing)4:20 PM ET | Sep 1 | 1 day | Kidd MarkEVP, GM Data Centers & ALM | SSaleCommon Stock, par value $.01 per share | −6.00K | $115.60 | −$693.6K | −5.9%95.5K after | 10b5-1 |
| Aug 10, 2026 (view filing)4:12 PM ET | Aug 7 | 3 days | Meaney William LPresident and CEO | SSaleCommon Stock, par value $.01 per share | −38.5K | $121.67 | −$4.68M | −100.0%0 after | 3 lots10b5-1 |
| Aug 10, 2026 (view filing)4:08 PM ET | Aug 7 | 3 days | Kidd MarkEVP, GM Data Centers & ALM | SSaleCommon Stock, par value $.01 per share | −6.00K | $122.70 | −$736.2K | −5.6%101.5K after | 10b5-1 |
| Aug 10, 2026 (view filing)4:03 PM ET | Aug 6 | 4 days | McIntosh Greg WEVP, Chief Commercial Officer | SSaleCommon Stock, par value $.01 per share | −11.8K | $127.13 | −$1.51M | −12.8%80.6K after | 2 lots10b5-1 |
Top 10 13F holders, Q2 2026
See all 1,177 holdersThe largest institutional positions in Iron Mountain Inc at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 33,570,910 | $4.24B | 0.06% | +549,556+1.7% | Added |
| Vanguard Portfolio Management LLC | 25,568,944 | $3.23B | 0.15% | +553,387+2.2% | Added |
| Vanguard Capital Management LLC | 18,953,705 | $2.39B | 0.05% | +194,816+1.0% | Added |
| State Street Corp | 17,634,044 | $2.24B | 0.07% | +82,411+0.5% | Added |
| Cohen & Steers, Inc. | 12,019,735 | $1.52B | 2.40% | −4,149,606−25.7% | Reduced |
| Geode Capital Management, LLC | 8,649,249 | $1.09B | 0.06% | +163,122+1.9% | Added |
| FMR LLC | 7,872,365 | $994.4M | 0.04% | +387,967+5.2% | Added |
| Dimensional Fund Advisors LP | 4,625,684 | $584.3M | 0.11% | +73,398+1.6% | Added |
| Morgan Stanley | 4,426,922 | $559.2M | 0.03% | −225,325−4.8% | Reduced |
| Principal Financial Group Inc | 4,373,424 | $552.4M | 0.27% | −192,669−4.2% | Reduced |
Holders of 5% or more of IRM
See all 2 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of Iron Mountain Inc.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Vanguard Portfolio Management LLC | 13G | 8.42%25.1M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 7.35%21.9M shares | New | Apr 30, 20261 filing | Apr 30, 2026 | SEC |
Politician trades
All politician trades in IRM8 members of Congress reported 27 trades in Iron Mountain Inc since 2020. Newest filings:
| Filed | Politician | Type | Amount |
|---|---|---|---|
| Mar 2, 2026 |  Markwayne Mullin Senate · OK | Sell (full) | $1K-$15K |
| Jan 13, 2026 | Markwayne Mullin Senate · OK | Sell (full) | $15K-$50K |
| Jan 13, 2026 | Markwayne Mullin Senate · OK | Sell (full) | $1K-$15K |
| Feb 27, 2025 | Markwayne Mullin Senate · OK | Buy | $1K-$15K |
| Jan 31, 2025 | Markwayne Mullin Senate · OK | Buy | $15K-$50K |
Senate · OK · Mar 2, 2026
Sell (full)$1K-$15K
Senate · OK · Jan 13, 2026
Sell (full)$15K-$50K
Senate · OK · Jan 13, 2026
Sell (full)$1K-$15K
Senate · OK · Feb 27, 2025
Buy$1K-$15K
Senate · OK · Jan 31, 2025
Buy$15K-$50K