- Type / Class
- Equity / Common Stock
- Shares outstanding
- 297,661,125
- Total 13F shares
- 229,526,142
- Share change
- +2,859,346
- Total reported value
- $13,658,760,340
- Put/Call ratio
- 59%
- Price per share
- $59.45
- Number of holders
- 826
- Value change
- +$171,582,469
- Number of buys
- 369
- Number of sells
- 372
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
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- 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%
|
46,853,786
|
$2,662,232,121 | — | 30 Jun 2023 | |
| BlackRock Finance, Inc. |
13F
|
Company |
7.5%
|
22,381,853
|
$1,271,736,863 | — | 30 Jun 2023 | |
| Capital World Investors |
13F
|
Company |
6.8%
|
20,360,030
|
$1,156,856,905 | — | 30 Jun 2023 | |
| STATE STREET CORP |
13F
|
Company |
4.7%
|
13,915,104
|
$799,057,845 | — | 30 Jun 2023 | |
| COHEN & STEERS, INC. |
13F
|
Company |
2.6%
|
7,725,767
|
$438,926,000 | — | 30 Jun 2023 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.5%
|
7,392,778
|
$419,139,666 | — | 30 Jun 2023 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
1.5%
|
4,541,862
|
$258,068,599 | — | 30 Jun 2023 | |
| MORGAN STANLEY |
13F
|
Company |
1.5%
|
4,375,104
|
$248,593,467 | — | 30 Jun 2023 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.4%
|
4,271,464
|
$242,702,192 | — | 30 Jun 2023 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1.3%
|
3,865,926
|
$219,661,915 | — | 30 Jun 2023 | |
| Amundi |
13F
|
Individual |
1.3%
|
3,811,690
|
$217,283,603 | — | 30 Jun 2023 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
1.3%
|
3,795,269
|
$215,647,211 | — | 30 Jun 2023 | |
| FMR LLC |
13F
|
Company |
1.3%
|
3,732,135
|
$212,059,898 | — | 30 Jun 2023 | |
| PICTET ASSET MANAGEMENT SA |
13F
|
Company |
1.1%
|
3,369,780
|
$191,470,900 | — | 30 Jun 2023 | |
| Epoch Investment Partners, Inc. |
13F
|
Company |
0.92%
|
2,725,178
|
$154,844,614 | — | 30 Jun 2023 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.79%
|
2,365,962
|
$134,433,986 | — | 30 Jun 2023 | |
| Legal & General Group Plc |
13F
|
Company |
0.77%
|
2,283,697
|
$129,759,384 | — | 30 Jun 2023 | |
| Invesco Ltd. |
13F
|
Company |
0.73%
|
2,166,096
|
$123,077,574 | — | 30 Jun 2023 | |
| NORGES BANK |
13F
|
Company |
0.69%
|
2,064,551
|
$117,307,788 | — | 30 Jun 2023 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.66%
|
1,959,785
|
$111,355,007 | — | 30 Jun 2023 | |
| Daiwa Securities Group Inc. |
13F
|
Company |
0.63%
|
1,867,040
|
$106,085,000 | — | 30 Jun 2023 | |
| PRUDENTIAL FINANCIAL INC |
13F
|
Company |
0.44%
|
1,314,926
|
$74,714,077 | — | 30 Jun 2023 | |
| CIBC Private Wealth Group LLC |
13F
|
Company |
0.42%
|
1,254,063
|
$71,255,858 | — | 30 Jun 2023 | |
| Deutsche Girozentrale DekaBank |
13F
|
Individual |
0.38%
|
1,122,995
|
$63,639,000 | — | 30 Jun 2023 | |
| Russell Investments Group, Ltd. |
13F
|
Company |
0.36%
|
1,084,084
|
$61,436,850 | — | 30 Jun 2023 | |
| Swiss National Bank |
13F
|
Company |
0.35%
|
1,052,861
|
$59,823,562 | — | 30 Jun 2023 | |
| Neuberger Berman Group LLC |
13F
|
Company |
0.34%
|
1,018,538
|
$57,864,984 | — | 30 Jun 2023 | |
| AGF MANAGEMENT LTD |
13F
|
Company |
0.33%
|
977,795
|
$55,558,312 | — | 30 Jun 2023 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.35%
|
1,037,676
|
$54,903,438 | — | 30 Jun 2023 | |
| Sumitomo Mitsui Trust Group, Inc. |
13F
|
Company |
0.32%
|
963,316
|
$54,735,615 | — | 30 Jun 2023 | |
| Rockefeller Capital Management L.P. |
13F
|
Company |
0.3%
|
896,935
|
$50,963,908 | — | 30 Jun 2023 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.3%
|
881,538
|
$50,088,998 | — | 30 Jun 2023 | |
| Nuveen Asset Management, LLC |
13F
|
Company |
0.29%
|
870,377
|
$49,454,822 | — | 30 Jun 2023 | |
| CANADA PENSION PLAN INVESTMENT BOARD |
13F
|
Company |
0.29%
|
867,590
|
$49,296,464 | — | 30 Jun 2023 | |
| UBS Group AG |
13F
|
Company |
0.29%
|
862,308
|
$48,996,341 | — | 30 Jun 2023 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.28%
|
834,129
|
$47,395,196 | — | 30 Jun 2023 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
0.28%
|
824,730
|
$46,861,159 | — | 30 Jun 2023 | |
| WELCH & FORBES LLC |
13F
|
Company |
0.25%
|
744,524
|
$42,303,874 | — | 30 Jun 2023 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
0.24%
|
725,549
|
$41,225,695 | — | 30 Jun 2023 | |
| BNP Paribas Asset Management Holding S.A. |
13F
|
Company |
0.24%
|
717,670
|
$40,778,000 | — | 30 Jun 2023 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.23%
|
679,386
|
$38,602,675 | — | 30 Jun 2023 | |
| Asset Management One Co., Ltd. |
13F
|
Company |
0.23%
|
675,384
|
$38,375,319 | — | 30 Jun 2023 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.22%
|
649,133
|
$36,883,737 | — | 30 Jun 2023 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.21%
|
616,764
|
$35,044,530 | — | 30 Jun 2023 | |
| INTECH INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.2%
|
606,810
|
$34,478,944 | — | 30 Jun 2023 | |
| Border to Coast Pensions Partnership Ltd |
13F
|
Company |
0.2%
|
606,040
|
$34,407,000 | — | 30 Jun 2023 | |
| BARCLAYS PLC |
13F
|
Company |
0.2%
|
599,593
|
$34,068,876 | — | 30 Jun 2023 | |
| ENVESTNET ASSET MANAGEMENT INC |
13F
|
Company |
0.2%
|
598,724
|
$34,019,478 | — | 30 Jun 2023 | |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM |
13F
|
Company |
0.2%
|
585,081
|
$33,244,302 | — | 30 Jun 2023 | |
| BANK OF MONTREAL /CAN/ |
13F
|
Company |
0.2%
|
581,287
|
$33,028,734 | — | 30 Jun 2023 |
Institutional Holders of IRON MOUNTAIN INC - Common Stock (IRM) as of Q3 2023
As of 30 Sep 2023,
IRON MOUNTAIN INC - Common Stock (IRM) was held by
826 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
229,526,142 shares.
The largest 10 holders included
VANGUARD GROUP INC, BlackRock Inc., Capital World Investors, STATE STREET CORP, GEODE CAPITAL MANAGEMENT, LLC, COHEN & STEERS, INC., DEUTSCHE BANK AG\, DIMENSIONAL FUND ADVISORS LP, MORGAN STANLEY, and NORTHERN TRUST CORP.
This page lists
827
institutional shareholders reporting positions in this security
for the Q3 2023 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q3 2023 vs Q2 2023 Across Filers
Q2 2023 holders
805
Q3 2023 holders
826
Holder diff
21
| Investor | Q2 2023 Shares | Q3 2023 Shares | Share Diff | Share Chg % | Q2 2023 Value $ | Q3 2023 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.