IRM — Iron Mountain Incorporated (Delaware)Common Stock REIT price, chart and key statistics

Price data

Price

$115.34

YTD price return

+39.05%

YTD total return

+42.24%

Next earnings

Nov 5, 2026 · Before open

Market cap

34.3B2016-12 8.6B2026-10 34.3B+301.2% over the window

Enterprise value

55B

Shares outstanding

297.7M2016-06 263.2M2026-06 297.7M+13.1% over the window

52W low

$77.77

52W high

$134.68

From 52W high

-14.36%

From 52W low

+48.31%

52W range

66%

Beta

1.19

Volume

Rel volume

0.57×

30D volume

1.5M

30D $ vol

166.6M

Insider trading

Insider net 1WNo open-market insider purchase or sale with a transaction date in the last 7 days, as filed on Form 4.

none

Insider net 1M0 insider-days of buying (no priced lot) and 2 of selling ($4.8M) in the last 30 days, by transaction date, open-market transactions only — awards, exercises, tax withholding and employee-plan purchases are not counted. A Form 4 is filed within two business days of the trade, so the newest days may not be in yet.

−$4.8M

Insider net 3M0 insider-days of buying (no priced lot) and 8 of selling ($17.4M) in the last 91 days, by transaction date, open-market transactions only — awards, exercises, tax withholding and employee-plan purchases are not counted. A Form 4 is filed within two business days of the trade, so the newest days may not be in yet.

−$17.4M

Insider net 1Y0 insider-days of buying (no priced lot) and 30 of selling ($102.8M) in the last 365 days, by transaction date, open-market transactions only — awards, exercises, tax withholding and employee-plan purchases are not counted. A Form 4 is filed within two business days of the trade, so the newest days may not be in yet.

−$102.8M

Form 4 transactions by trade date, as filed; latest on file 2026-10-01.

Fundamentals

Sales (ttm)

7.6B2016-12 3.5B2026-06 7.6B+115.4% over the window

Sales/share

$25.402016-12 $13.312026-06 $25.40+90.8% over the window

FCF (ttm)

-490.9M2016-06 254.2M2026-06 -490.9M-293.1% over the window

FCF/share

-$1.652016-06 $0.972026-06 -$1.65-270.8% over the window

Book value/share

-$4.302016-06 $8.442026-06 -$4.30-151.0% over the window

Current ratio

0.732016-06 1.312026-06 0.73-44.7% over the window

Growth (CAGR, ttm) · 10Y

Sales

+17.39%2025-06-30 → 2026-06-306.4B → 7.6B (+17.4% total)+13.02%2023-06-30 → 2026-06-305.2B → 7.6B (+44.4% total)+11.55%2020-12-31 → 2026-06-304.1B → 7.6B (+82.3% total)+8.42%2016-12-31 → 2026-06-303.5B → 7.6B (+115.4% total)

Net income

-17.11%2024-12-31 → 2025-12-31183.7M → 152.3M (-17.1% total)-35.29%2022-12-31 → 2025-12-31562.1M → 152.3M (-72.9% total)-15.00%2020-12-31 → 2025-12-31343.1M → 152.3M (-55.6% total)+1.98%2015-12-31 → 2025-12-31125.2M → 152.3M (+21.6% total)

Shares

+0.80%2025-06-30 → 2026-06-30295.3M → 297.7M (+0.8% total)+0.66%2023-06-30 → 2026-06-30291.9M → 297.7M (+2.0% total)+0.56%2021-06-30 → 2026-06-30289.5M → 297.7M (+2.8% total)+1.24%2016-06-30 → 2026-06-30263.2M → 297.7M (+13.1% total)

Per-share growth (CAGR, ttm) · 10Y

EPS

-19.68%2024-12-31 → 2025-12-31$0.61 → $0.49 (-19.7% total)-36.34%2022-12-31 → 2025-12-31$1.90 → $0.49 (-74.2% total)-16.26%2020-12-31 → 2025-12-31$1.19 → $0.49 (-58.8% total)-1.67%2015-12-31 → 2025-12-31$0.58 → $0.49 (-15.5% total)

Sales/share

+16.46%2025-06-30 → 2026-06-30$21.82 → $25.40 (+16.4% total)+12.27%2023-06-30 → 2026-06-30$17.95 → $25.40 (+41.5% total)+10.91%2020-12-31 → 2026-06-30$14.38 → $25.40 (+76.7% total)+7.04%2016-12-31 → 2026-06-30$13.31 → $25.40 (+90.8% total)

Dividend/share

+12.58%2025-06-30 → 2026-06-30$3.00 → $3.38 (+12.6% total)+10.93%2023-06-30 → 2026-06-30$2.47 → $3.38 (+36.5% total)+6.41%2021-06-30 → 2026-06-30$2.48 → $3.38 (+36.4% total)+5.58%2016-06-30 → 2026-06-30$1.96 → $3.38 (+72.1% total)

Price

+8.35%2025-10-27 → 2026-10-27$106.46 → $115.34 (+8.3% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+25.59%2023-10-27 → 2026-10-27$58.22 → $115.34 (+98.1% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+20.36%2021-10-27 → 2026-10-27$45.66 → $115.34 (+152.6% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+12.99%2016-10-26 → 2026-10-27$34.01 → $115.34 (+239.1% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.

Total return

+12.00%2025-10-27 → 2026-10-27$102.99 → $115.34 (+12.0% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.+29.66%2023-10-27 → 2026-10-27$52.90 → $115.34 (+118.0% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.+25.01%2021-10-27 → 2026-10-27$37.78 → $115.34 (+205.3% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.+19.27%2016-10-26 → 2026-10-27$19.80 → $115.34 (+482.7% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.

Fundamentals end at the last reported quarter; price and total return end at the latest close.

Valuation

P/OI (ttm)Price ÷ TTM operating income. Excludes the below-the-line items that make P/E jump — mark-to-market gains, settlements, tax true-ups.

24.2×2016-12 17.632026-10 24.20+37.3% over the window

Fwd P/E

40.3×

P/S (ttm)Market cap ÷ TTM revenue.

4.5×2018-03 2.442026-10 4.54+86.2% over the window

P/B (mrq)Market cap ÷ stockholders' equity at the most recent quarter end.

-26.8×2016-12 4.032026-10 -26.80-765.4% over the window

EV/EBITDA (fy)

21.9×

EV/Sales (ttm)

7.3×

FCF yield (ttm)TTM free cash flow ÷ market cap — the inverse of P/FCF.

-1.43%2016-09 3.6%2026-06 -1.3%-135.8% over the window

Dividend yield (fwd)Indicated annual dividend ÷ last close: the last regular payment × payments a year, from our own dividend record. Shown only for a company that pays the same amount each time (raises and cuts allowed), whose payments are on schedule and agree with the dividends it reports paying; a company whose payments vary in size, such as an unequal interim and final, has no forward figure — see the ttm yield.

3.00%

Dividend yield (ttm)Dividends paid over the last year ÷ last close: the last full cycle of regular payments in our own dividend record. Below the forward yield after a raise, above it after a cut. Shown only when the record holds that full cycle and it agrees with the dividends the company reports paying; otherwise —.

3.00%

Dividend/share (fwd)The indicated annual dividend: the last regular payment × payments a year, for a company that pays the same amount each time.

$3.46

Buyback yield (realized, 1y)1 − shares_at(2026-06-30) ÷ shares_at(2025-06-30) = 1 − 297.7M ÷ 295.3M. Point-in-time share counts from the company's own SEC filings (the same count at both ends), published only when the cash flow statement shows repurchases inside that window. A falling price can't inflate it; negative means net dilution.

-0.80%

Shareholder yield (realized, 1y)Buyback leg + dividend leg: shares retired over the year (-0.80%) + dividends paid over that year ($996.9M) ÷ market_cap_at(2025-06-30) ($30.3B). Both legs are measured against the start of the window, so a payout can't shrink its own denominator.

2.49%

Buyback yield (cash, ttm)Buybacks net of issuance over the trailing twelve months ($0) ÷ today's market cap ($34.3B). Dollars SPENT over what the company is worth NOW — a stock that fell after buying reads high.

0.00%2016-09 0.0%2026-06 0.0%

Shareholder yield (cash, ttm)(TTM buybacks net of issuance $0 + TTM dividends $996.9M) ÷ today's market cap ($34.3B). Same caveat as the cash buyback yield.

2.90%2016-09 5.4%2026-06 2.6%-51.2% over the window

Vs own 10Y history

P/E

90th

P/OI

78th

P/S

79th

P/B

100th

P/FCF

100th