Iron Mountain Inc (IRM)
- Sector
- Real Estate
- Industry
- Other Specialized REITs
- Last price
- $106.52
- As of
Kresmion compiles this page from IRM's SEC filings, its 13F institutional holders and the market events Kresmion detects, each linked to its source.
IRON MOUNTAIN INC (IRM): 6 institutional managers tracked by Kresmion reported non-option positions in their 2026Q2 Form 13F filings, and the most recent SEC filing on record for the company is a Form 10-Q filed 2026-11-05.
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Preview the IRM dossierActive events for IRM
- mediumEarnings above estimates
Q3-2026: Beat consensus by 147.7%, EPS $1.53 vs $0.6178 estimate
- high13F: funds reduced
5 tracked funds reduced IRM this 2026Q2, institutional consensus
- high13F: funds added
3 tracked funds increased IRM this 2026Q2, institutional consensus
- high13F: large increase
CITADEL ADVISORS LLC added +68% to IRM (2026Q2)
- high13F: large increase
CITADEL ADVISORS LLC added +280% to IRM (2026Q2)
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Every event on IRM, as it fires
You are seeing 5 of 15 events recorded on IRM since 2026-05-30.
The five above landed across 3 days. The other 10 were recorded on 2 other days. 10 of the 15 are institutional flow rows, which arrive in batches on filing days.
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IRM positions held by the managers we follow (2026Q2)
What the managers we follow bought and sold in Q2 2026
| Manager / security | Market value | % of reported value |
|---|---|---|
| CITADEL ADVISORS LLC FundCUSIP 46284V101 · 2026Q2 | $43.3M | 0.02% |
| MILLENNIUM MANAGEMENT LLC FundCUSIP 46284V101 · 2026Q2 | $19.8M | 0.01% |
| Point72 Asset Management, L.P. FundCUSIP 46284V101 · 2026Q2 | $15.6M | 0.02% |
| D. E. Shaw & Co., Inc. FundCUSIP 46284V101 · 2026Q2 | $13.9M | 0.01% |
| TWO SIGMA INVESTMENTS, LP FundCUSIP 46284V101 · 2026Q2 | $8.3M | 0.01% |
| RENAISSANCE TECHNOLOGIES LLC FundCUSIP 46284V101 · 2026Q2 | $973K | 0.00% |
Quarterly SEC Form 13F disclosures from the managers Kresmion tracks, not a complete ownership ranking. Non-option holdings only; reported put and call positions are excluded. Different securities are labeled by CUSIP. The share of reported value is each position's value over the sum of the values that manager reported for the quarter; option lines are not in that sum, as on each fund page. Values are reporting-period snapshots, not current position values. Filings can arrive up to 45 days after quarter-end.
Recent SEC filings, IRM
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
More data on IRM
- IRM share buybacks Cash paid for repurchases, shares bought and program authorizations, from SEC filings.
- IRM insider trading clusters Three or more insiders filing the same direction within 30 days, from SEC Form 4.
- IRM against its peers Growth, margins and valuation beside the industry median, from annual SEC filings.
IRM against its peers
IRM's operating margin of 16.9% ranks in the 50th percentile of 10 Real Estate sector peers, fiscal period ending 2025-12-31.
| Metric | IRM | Peer median | Percentile | n |
|---|---|---|---|---|
| Revenue FY | 6.9B USD | 249M USD | 97 | 14 |
| Operating margin | 16.9% | 15.9% | 50 | 10 |
| Net margin | 2.2% | 3.3% | 46 | 13 |
| Return on equity | n/a | 5.3% | n/a | 17 |
| P / E | 217.4x | 25.6x | 96 | 12 |
| 1 year | 5.6% | n/a | n/a | 1 |
Peers (20): AAT, ABCP, ABR, ACR, ACRE, ADAM, ADC, AEI, AGNC, AGNT, AHR, AHRT, AHT, AIRE, AIV, AKR, ALX, AMH, AMT, AOMR. Fiscal period ending 2025-12-31. Every figure is one full fiscal year read from one annual filing (IRM: 10-K), reported in USD. Nothing is trailing twelve months and nothing is converted between currencies. Source: SEC EDGAR XBRL company facts (public domain); prices from Kresmion's daily equity market-data snapshot. Open the full comparison.
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Cite this data
Kresmion counts the managers it follows that reported a non-option position in IRM on Form 13F-HR for the latest reporting quarter, orders those positions by the value each filing reports, and lists the company's latest SEC filings and the events Kresmion recorded on IRM in the last 180 days.
Upstream: SEC EDGAR filings for IRM
Kresmion, "IRON MOUNTAIN INC (IRM) institutional holdings and SEC filings", data as of 2026-11-05, https://kresmion.com/research/IRM. Upstream data: SEC EDGAR filings for IRM.
Link to this data (HTML):
<a href="https://kresmion.com/research/IRM">IRON MOUNTAIN INC (IRM) institutional holdings and SEC filings (Kresmion)</a>
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