Iron Mountain (IRM) Shares Outstanding (2009 - 2026)
Iron Mountain's Shares Outstanding was 297.74 million in Q2 2026, up 0.8% from 295.36 million a year earlier and up 0.3% from the prior quarter.
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Analysis
Iron Mountain (IRM) Shares Outstanding (2009 - 2026) Analysis & Trends
For FY2025, Shares Outstanding at Iron Mountain came in at 295.4 million, up 0.7% from FY2024.
- Shares Outstanding has now increased for 13 consecutive years, with a five-year compound annual growth rate of 0.5% (FY2020 to FY2025).
- In earlier years, Shares Outstanding was 293.37 million in FY2024 (+0.5%), 291.94 million in FY2023 (+0.4%), 290.81 million in FY2022 (+0.5%) and 289.46 million in FY2021 (+0.4%).
- The Q2 2026 figure marks the highest quarterly Shares Outstanding in data going back to Q1 2009.
- Compared with a year earlier, Shares Outstanding has increased for 54 straight quarters, with growth averaging 0.7% over the last eight quarters.
- Per Business Quant data, IRM's Shares Outstanding in the three quarters before Q2 2026 was 296.85 million (Q1 2026), 295.4 million (Q4 2025) and 295.77 million (Q3 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Shares Outstanding (Qtr) |
|---|---|---|---|---|---|
| 1 | Accenture | 132.79 Bn | 93.20 Bn | 6.13 Bn | 612.21 Mn |
| 2 | Cintas | 77.24 Bn | 76.43 Bn | 1.48 Bn | 401.27 Mn |
| 3 | Iron Mountain | 33.76 Bn | 33.28 Bn | 1.07 Bn | 297.74 Mn |
| 4 | APi | 17.50 Bn | 14.54 Bn | 703.00 Mn | 433.00 Mn |
| 5 | Aramark | 14.64 Bn | 12.66 Bn | 430.34 Mn | 263.59 Mn |
| 6 | Rollins | 14.51 Bn | 14.06 Bn | 569.95 Mn | 481.38 Mn |
| 7 | UL Solutions | 13.33 Bn | 12.11 Bn | 417.00 Mn | 202.00 Mn |
| 8 | Gartner | 11.67 Bn | 5.36 Bn | 1.19 Bn | 66.50 Mn |
| 9 | Rentokil Initial | 10.08 Bn | 3.42 Bn | - | 504.80 Mn |
| 10 | Tetra Tech | 8.48 Bn | 7.59 Bn | 243.21 Mn | 258.15 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 297.74 Mn |
| Mar 31, 2026 | 296.85 Mn |
| Dec 31, 2025 | 295.40 Mn |
| Sep 30, 2025 | 295.77 Mn |
| Jun 30, 2025 | 295.36 Mn |
| Mar 31, 2025 | 294.51 Mn |
| Dec 31, 2024 | 293.37 Mn |
| Sep 30, 2024 | 293.60 Mn |
| Jun 30, 2024 | 293.34 Mn |
| Mar 31, 2024 | 292.75 Mn |
| Dec 31, 2023 | 291.94 Mn |
| Sep 30, 2023 | 292.15 Mn |
| Jun 30, 2023 | 291.83 Mn |
| Mar 31, 2023 | 291.44 Mn |
| Dec 31, 2022 | 290.81 Mn |
| Sep 30, 2022 | 290.94 Mn |
| Jun 30, 2022 | 290.76 Mn |
| Mar 31, 2022 | 290.33 Mn |
| Dec 31, 2021 | 289.46 Mn |
| Sep 30, 2021 | 289.76 Mn |
API Access
Iron Mountain Shares Outstanding API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=shares-outstanding&ticker=IRM&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "shares-outstanding", "ticker": "IRM", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=shares-outstanding&ticker=IRM&period=max&api_key=YOUR_API_KEY");
const data = await res.json();