- Type / Class
- Equity / Common Stock
- Shares outstanding
- 295,766,873
- Total 13F shares
- 247,404,957
- Share change
- +11,280,930
- Total reported value
- $22,194,271,901
- Put/Call ratio
- 56%
- Price per share
- $89.62
- Number of holders
- 958
- Value change
- +$1,038,973,385
- Number of buys
- 418
- Number of sells
- 430
Quarterly Holders Quick Answers
What is CUSIP 46284V101?
CUSIP 46284V101 identifies IRM - IRON MOUNTAIN INC - Common Stock in SEC institutional holdings data.
Need full ownership history?
Open the full security ownership history page.
Next holder-history checks
These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.
- Back to full security ownership history for the broader multi-quarter picture.
- Latest 13F filings for newly reported positions across managers.
- Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
- SEC investors directory for manager drilldown.
Explore More Reporting Periods
Jump to adjacent filing periods for faster comparison and easier crawl discovery.
Recent filing periods for CUSIP 46284V101:
Top shareholders of IRM - IRON MOUNTAIN INC - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
|
Company |
16%
|
46,377,234
|
$3,719,917,939 | — | 31 Mar 2024 | |
| COHEN & STEERS, INC. |
13F
|
Company |
8%
|
23,655,038
|
$1,897,256,000 | — | 31 Mar 2024 | |
| BlackRock Finance, Inc. |
13F
|
Company |
7.8%
|
23,108,831
|
$1,853,559,339 | — | 31 Mar 2024 | |
| STATE STREET CORP |
13F
|
Company |
4.7%
|
13,811,808
|
$1,116,639,741 | — | 31 Mar 2024 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.5%
|
7,320,486
|
$587,069,461 | — | 31 Mar 2024 | |
| Daiwa Securities Group Inc. |
13F
|
Company |
1.5%
|
4,562,165
|
$365,931,000 | — | 31 Mar 2024 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.4%
|
4,286,593
|
$343,827,632 | — | 31 Mar 2024 | |
| Capital World Investors |
13F
|
Company |
1.4%
|
4,116,123
|
$330,154,226 | — | 31 Mar 2024 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
1.3%
|
3,852,147
|
$308,980,712 | — | 31 Mar 2024 | |
| MORGAN STANLEY |
13F
|
Company |
1.2%
|
3,458,435
|
$277,401,263 | — | 31 Mar 2024 | |
| NORGES BANK |
13F
|
Company |
1.1%
|
3,338,601
|
$267,789,186 | — | 31 Mar 2024 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
1.1%
|
3,225,161
|
$258,690,201 | — | 31 Mar 2024 | |
| Pictet Asset Management Holding SA |
13F
|
Company |
1%
|
3,088,633
|
$247,733,933 | — | 31 Mar 2024 | |
| FMR LLC |
13F
|
Company |
1%
|
2,968,422
|
$238,097,165 | — | 31 Mar 2024 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.99%
|
2,915,624
|
$233,862,202 | — | 31 Mar 2024 | |
| Amundi |
13F
|
Individual |
1%
|
2,977,334
|
$221,573,195 | — | 31 Mar 2024 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
0.9%
|
2,648,454
|
$212,432,495 | — | 31 Mar 2024 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.83%
|
2,455,076
|
$196,921,737 | — | 31 Mar 2024 | |
| Legal & General Group Plc |
13F
|
Company |
0.73%
|
2,163,415
|
$173,526,959 | — | 31 Mar 2024 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.72%
|
2,119,675
|
$170,019,111 | — | 31 Mar 2024 | |
| Invesco Ltd. |
13F
|
Company |
0.68%
|
2,010,493
|
$161,261,641 | — | 31 Mar 2024 | |
| Russell Investments Group, Ltd. |
13F
|
Company |
0.68%
|
2,006,989
|
$160,966,616 | — | 31 Mar 2024 | |
| PRUDENTIAL FINANCIAL INC |
13F
|
Company |
0.63%
|
1,862,942
|
$149,426,578 | — | 31 Mar 2024 | |
| Epoch Investment Partners, Inc. |
13F
|
Company |
0.57%
|
1,686,218
|
$135,251,545 | — | 31 Mar 2024 | |
| Nuveen Asset Management, LLC |
13F
|
Company |
0.54%
|
1,590,237
|
$127,694,196 | — | 31 Mar 2024 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.52%
|
1,542,167
|
$123,697,215 | — | 31 Mar 2024 | |
| CENTERSQUARE INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.52%
|
1,538,486
|
$119,263,435 | — | 31 Mar 2024 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.5%
|
1,471,946
|
$118,886,669 | — | 31 Mar 2024 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.45%
|
1,321,226
|
$105,975,563 | — | 31 Mar 2024 | |
| AGF MANAGEMENT LTD |
13F
|
Company |
0.43%
|
1,273,292
|
$102,130,751 | — | 31 Mar 2024 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.43%
|
1,271,739
|
$102,006,185 | — | 31 Mar 2024 | |
| Deutsche Girozentrale DekaBank |
13F
|
Individual |
0.38%
|
1,126,012
|
$90,811,000 | — | 31 Mar 2024 | |
| CIBC Private Wealth Group LLC |
13F
|
Company |
0.36%
|
1,056,807
|
$84,058,434 | — | 31 Mar 2024 | |
| UBS Group AG |
13F
|
Company |
0.34%
|
1,000,897
|
$80,281,949 | — | 31 Mar 2024 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.32%
|
958,517
|
$76,882,649 | — | 31 Mar 2024 | |
| Sumitomo Mitsui Trust Group, Inc. |
13F
|
Company |
0.32%
|
956,189
|
$76,695,920 | — | 31 Mar 2024 | |
| SEI INVESTMENTS CO |
13F
|
Company |
0.32%
|
943,728
|
$75,695,957 | — | 31 Mar 2024 | |
| HEITMAN REAL ESTATE SECURITIES LLC |
13F
|
Company |
0.32%
|
939,333
|
$75,343,900 | — | 31 Mar 2024 | |
| CANADA PENSION PLAN INVESTMENT BOARD |
13F
|
Company |
0.3%
|
896,990
|
$71,947,568 | — | 31 Mar 2024 | |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO |
13F
|
Company |
0.3%
|
895,705
|
$71,844,498 | — | 31 Mar 2024 | |
| Swiss National Bank |
13F
|
Company |
0.3%
|
874,461
|
$70,140,517 | — | 31 Mar 2024 | |
| CAPTRUST FINANCIAL ADVISORS |
13F
|
Company |
0.29%
|
856,945
|
$68,735,587 | — | 31 Mar 2024 | |
| Point72 Asset Management, L.P. |
13F
|
Company |
0.28%
|
833,604
|
$66,863,377 | — | 31 Mar 2024 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.28%
|
820,313
|
$65,797,339 | — | 31 Mar 2024 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
0.27%
|
784,056
|
$62,889,132 | — | 31 Mar 2024 | |
| WELCH & FORBES LLC |
13F
|
Company |
0.25%
|
727,641
|
$58,364,130 | — | 31 Mar 2024 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.24%
|
717,300
|
$57,534,664 | — | 31 Mar 2024 | |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
0.23%
|
686,771
|
$55,085,902 | — | 31 Mar 2024 | |
| Neuberger Berman Group LLC |
13F
|
Company |
0.23%
|
686,367
|
$55,053,497 | — | 31 Mar 2024 | |
| Rockefeller Capital Management L.P. |
13F
|
Company |
0.22%
|
662,217
|
$53,116,536 | — | 31 Mar 2024 |
Institutional Holders of IRON MOUNTAIN INC - Common Stock (IRM) as of Q2 2024
As of 30 Jun 2024,
IRON MOUNTAIN INC - Common Stock (IRM) was held by
958 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
247,404,957 shares.
The largest 10 holders included
VANGUARD GROUP INC, BlackRock Inc., COHEN & STEERS, INC., STATE STREET CORP, GEODE CAPITAL MANAGEMENT, LLC, Daiwa Securities Group Inc., DIMENSIONAL FUND ADVISORS LP, Capital World Investors, DEUTSCHE BANK AG\, and MORGAN STANLEY.
This page lists
960
institutional shareholders reporting positions in this security
for the Q2 2024 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q2 2024 vs Q1 2024 Across Filers
Q1 2024 holders
929
Q2 2024 holders
958
Holder diff
29
| Investor | Q1 2024 Shares | Q2 2024 Shares | Share Diff | Share Chg % | Q1 2024 Value $ | Q2 2024 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.