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Iron Mountain Incorporated (IRM)

Iron Mountain Incorporated at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Iron Mountain Incorporated (IRM) is a REIT - Specialty company based in US with a market capitalization of $37.7B. Revenue grew 12.2% year-over-year and free cash flow was negative at -$931.6M. This page tracks IRM's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 28.85K employees · IPO Feb 1, 1996

Valuation

Valuation & price

$125.07 · as of May 17, 2026 · -6.0% vs 52w high

257.6

P/E ratio

Latest-FY diluted EPS

—

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$132$106$78.86Jul 25Dec 25Jul 26Jul 7, 25$100.32Jul 9, 25$99.25Jul 11, 25$97.99Jul 15, 25$97.26Jul 17, 25$98.69Jul 21, 25$98.73Jul 23, 25$99.38Jul 25, 25$99.34Jul 29, 25$99.42Jul 31, 25$97.36Aug 4, 25$94.77Aug 6, 25$90.04Aug 11, 25$89.55Aug 13, 25$93.97Aug 15, 25$91.49Aug 19, 25$91.56Aug 21, 25$90.55Aug 25, 25$91.79Aug 27, 25$91.87Aug 29, 25$92.33Sep 3, 25$89.81Sep 5, 25$92.18Sep 9, 25$96.67Sep 11, 25$98.83Sep 16, 25$100.35Sep 18, 25$98.92Sep 22, 25$104.46Sep 24, 25$101.23Sep 26, 25$100.93Sep 30, 25$101.94Oct 2, 25$103.30Oct 6, 25$106.37Oct 8, 25$105.39Oct 10, 25$101.84Oct 14, 25$103.36Oct 16, 25$105.79Oct 21, 25$104.41Oct 23, 25$103.93Oct 27, 25$106.46Oct 29, 25$101.34Oct 31, 25$102.95Nov 4, 25$103.32Nov 6, 25$100.86Nov 10, 25$102.33Nov 12, 25$98.09Nov 14, 25$91.37Nov 18, 25$89.28Nov 20, 25$83.00Nov 25, 25$85.66Nov 28, 25$86.35Dec 2, 25$82.77Dec 4, 25$85.03Dec 8, 25$84.43Dec 10, 25$85.50Dec 12, 25$83.35Dec 16, 25$81.00Dec 18, 25$78.86Dec 22, 25$81.02Dec 24, 25$81.46Dec 29, 25$82.63Jan 2, 26$83.24Jan 6, 26$84.88Jan 8, 26$87.32Jan 12, 26$89.50Jan 14, 26$91.54Jan 16, 26$95.93Jan 21, 26$93.81Jan 23, 26$93.59Jan 27, 26$91.72Jan 29, 26$93.03Feb 2, 26$89.42Feb 4, 26$90.07Feb 9, 26$97.08Feb 11, 26$100.22Feb 13, 26$109.83Feb 18, 26$105.83Feb 20, 26$110.29Feb 24, 26$113.24Feb 26, 26$109.35Mar 2, 26$110.33Mar 4, 26$107.84Mar 6, 26$105.18Mar 10, 26$107.77Mar 12, 26$107.38Mar 17, 26$107.96Mar 19, 26$104.94Mar 23, 26$101.94Mar 25, 26$100.53Mar 27, 26$98.30Mar 31, 26$102.14Apr 2, 26$103.30Apr 7, 26$104.73Apr 9, 26$108.69Apr 13, 26$111.88Apr 15, 26$113.55Apr 17, 26$118.07Apr 22, 26$117.23Apr 24, 26$116.03Apr 28, 26$112.62Apr 30, 26$125.99May 4, 26$128.22May 6, 26$132.06May 8, 26$128.84May 12, 26$126.21May 14, 26$127.75May 18, 26$123.96May 20, 26$125.81May 22, 26$126.46May 28, 26$126.83Jun 1, 26$126.38Jun 3, 26$127.95Jun 5, 26$124.66Jun 9, 26$126.14Jun 11, 26$125.17Jun 15, 26$126.28Jun 17, 26$125.44Jun 22, 26$131.86Jun 24, 26$130.59Jun 26, 26$132.44Jul 2, 26$117.16
$78.8652-week range$133.06
Loading valuation history…

Fundamentals

Key fundamentals

$37.7B

Market cap

12.2%

Revenue growth (YoY)

25.7%

Gross margin

-$931.6M

Free cash flow (USD)

$18.9B

Net debt

0.7%

Share dilution

2/4

Graham criteria passed

Defensive-investor screen

Real Estate

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$3.5BFY 2017$3.8BFY 2018$4.2BFY 2019$4.3BFY 2020$4.1BFY 2021$4.5BFY 2022$5.1BFY 2023$5.5BFY 2024$6.1BFY 2025$6.9B
$3.5B$6.9B

Free cash flow by year

2016 → 2025

FY 2016$164.5MFY 2017$302.7MFY 2018$403.0MFY 2019$218.2MFY 2020$534.4MFY 2021$134.5MFY 2022$44.1MFY 2023$-231.5MFY 2024$-657.2MFY 2025$-931.6M
$164.5M-$931.6M

Gross margin by year

2021 → 2025

FY 202158.0%FY 202257.1%FY 202357.0%FY 202456.1%FY 202525.7%
58.0%25.7%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

8

Insider sells · 90 days

Earnings

Last report: 10-Q filed Apr 30, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • Insider sellInsider Sell $4.7M · 10b5-1 PlanMeaney William L · Director, President and CEO · $4.7MJul 2, 2026Filing
  • 8-K eventSenior Notes IndentureJun 26, 2026Filing
  • Insider sellInsider Sell $760K · 10b5-1 PlanKidd Mark · EVP, GM Data Centers & ALM · $760.2KJun 2, 2026Filing
  • Insider sellInsider Sell $4.9M · 10b5-1 PlanMeaney William L · Director, President and CEO · $4.9MJun 2, 2026Filing
  • Insider sellInsider Sell $902K · 10b5-1 PlanBorges Daniel · SVP & Chief Accounting Officer · $902.2KMay 26, 2026Filing
  • Insider sellInsider Sell $94K · 10b5-1 PlanRAKOWICH WALTER C · Director · $94.2KMay 21, 2026Filing
  • Insider sellInsider Sell $244K · 10b5-1 PlanArway Pamela M · Director · $244KMay 13, 2026Filing
  • Insider sellInsider Sell $5.0M · 10b5-1 PlanMeaney William L · Director, President and CEO · $5MMay 12, 2026Filing
  • 8-K eventAnnual Meeting ResultsMay 12, 2026Filing
  • Insider sellInsider Sell $767K · 10b5-1 PlanKidd Mark · EVP, GM Data Centers & ALM · $767.5KMay 11, 2026Filing

Questions

Frequently asked questions

What is Iron Mountain Incorporated's market cap?

Iron Mountain Incorporated (IRM) has a market capitalization of $37.7B.

What is IRM's P/E ratio?

IRM trades at a price-to-earnings ratio of 257.6, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

Are insiders buying IRM stock?

SEC Form 4 filings show no open-market insider buys at Iron Mountain Incorporated in the last 90 days (8 sells).

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Timeline

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News

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Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.