Iron Mountain Ownership | Who Owns Iron Mountain?
Iron Mountain Ownership Summary
Iron Mountain is owned by 81.63% institutional investors, 0.80% insiders, and 17.57% retail investors. Vanguard group is the largest institutional shareholder, holding 15.87% of IRM shares. Vanguard Real Estate Index Investor is the top mutual fund, with 3.73% of its assets in Iron Mountain shares.
IRM Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Iron Mountain | 81.63% | 0.80% | 17.57% |
| Sector | Real Estate Stocks | 46.98% | 8.71% | 44.31% |
| Industry | Specialty REIT Stocks | 52.70% | 3.36% | 43.95% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Vanguard group | 46.61M | 15.87% | $4.90B |
| Blackrock funding, inc. /de | 32.07M | 10.92% | $3.37B |
| Blackrock | 27.89M | 9.53% | $2.50B |
| State street | 17.52M | 5.98% | $1.58B |
| Cohen & steers | 14.91M | 5.08% | $1.57B |
| Geode capital management | 7.91M | 2.69% | $832.88M |
| Wealthfront advisers | 6.86M | 2.34% | $1.34B |
| Dimensional fund advisors lp | 4.22M | 1.44% | $443.48M |
| Capital world investors | 3.82M | 1.30% | $401.25M |
| Morgan stanley | 3.66M | 1.25% | $327.60M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Foresight capital management advisors | 87.30K | 5.36% | $9.18M |
| Vert asset management | 129.27K | 4.65% | $13.59M |
| Waterfront capital partners | 237.85K | 4.59% | $25.00M |
| Wealthfront advisers | 6.86M | 4.06% | $1.34B |
| Marble harbor investment counsel | 346.57K | 4.02% | $36.43M |
| Aew capital management l p | 678.89K | 3.45% | $71.36M |
| Werlinich asset management | 51.69K | 3.12% | $5.36M |
| Ar asset management | 130.60K | 3.11% | $13.73M |
| Adelante capital management | 445.90K | 3.09% | $46.87M |
| American trust investment advisors | 70.40K | 3.06% | $6.31M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Wealthfront advisers | 6.86M | 4.06% | 6.80M |
| Blackrock | 27.89M | 0.06% | 4.78M |
| State street | 17.52M | 0.07% | 3.70M |
| Norges bank | 3.31M | 0.05% | 3.31M |
| Td asset management | 1.95M | 0.18% | 1.09M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Cohen & steers | 14.91M | 2.97% | -2.82M |
| Ubs asset management americas | 426.22K | 0.01% | -2.74M |
| Agf management | - | - | -2.13M |
| Citadel advisors | - | - | -1.27M |
| Canada pension plan investment board | 217.27K | 0.02% | -851.84K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Norges bank | 3.31M | 0.05% | 3.31M | $348.25M |
| Raymond james financial | 525.84K | 0.02% | 525.84K | $55.27M |
| Exoduspoint capital management, lp | 186.50K | 0.13% | 186.50K | $19.60M |
| Qube research | 136.33K | 0.02% | 136.33K | $14.33M |
| Caption management | 136.20K | 0.19% | 136.20K | $12.21M |
Sold Out
| Holder | Change |
|---|---|
| Mendota financial group | -1.00 |
| Quest partners | -1.00 |
| Cape investment advisory | -1.00 |
| Financial gravity asset management | -1.00 |
| Kozak & associates | -1.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2025 | 996 | -8.03% | 240,406,567 | 1.52% | 81 | 1.25% | 417 | -13.13% | 397 | -3.64% |
| Dec 31, 2024 | 781 | -27.82% | 190,161,466 | -20.39% | 64 | 0.98% | 327 | -31.30% | 315 | -24.82% |
| Sep 30, 2024 | 1,072 | 8.83% | 238,410,694 | -3.76% | 81 | 1.14% | 475 | 9.20% | 411 | 11.08% |
| Jun 30, 2024 | 970 | 1.04% | 247,508,042 | 5.77% | 84 | 1.32% | 428 | -1.15% | 368 | 10.84% |
| Mar 31, 2024 | 960 | 5.61% | 234,000,259 | 0.32% | 79 | 1.25% | 433 | 5.35% | 332 | -4.05% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Real Estate Index Investor | 11.01M | 3.73% | -182.91K |
| Vanguard Total Stock Mkt Idx Inv | 9.42M | 3.19% | 140.52K |
| Vanguard US Total Market Shares ETF | 9.29M | 3.16% | 12.82K |
| Vanguard Institutional 500 Index Trust | 8.30M | 2.81% | 131.13K |
| Vanguard Mid Cap Index Institutional | 6.39M | 2.16% | 61.33K |
| Fidelity 500 Index | 3.69M | 1.25% | 9.88K |
| SPDR® S&P 500 ETF | 3.56M | 1.21% | -144.37K |
| SPDR® S&P 500® ETF Trust | 3.56M | 1.21% | -18.68K |
| SPDR® S&P 500® ETF | 3.53M | 1.20% | 13.24K |
| iShares Core S&P 500 ETF | 3.40M | 1.15% | -1.56K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jun 04, 2025 | RAKOWICH WALTER C | - | Sell | $89.97K |
| Jun 02, 2025 | Meaney William L | President and CEO | Sell | $3.60M |
| Jun 02, 2025 | Meaney William L | President and CEO | Sell | $2.39M |
| Jun 02, 2025 | Meaney William L | President and CEO | Sell | $842.64K |
| Jun 02, 2025 | McIntosh Greg W | EVP, CCO & GM, Global RM | Sell | $1.70M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q2 | - | 13 |
| 2025 Q1 | - | 21 |
| 2024 Q4 | - | 7 |
| 2024 Q3 | - | 13 |
| 2024 Q2 | - | 18 |
IRM Ownership FAQ
Try Tickergate Pro Free
Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)
Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis
Discover trending investment themes
Find your next best investment
Research stocks using tools