- Type / Class
- Equity / Common Stock
- Shares outstanding
- 295,766,873
- Total 13F shares
- 33,972,016
- Share change
- +30,769,292
- Total reported value
- $1,313,392,000
- Put/Call ratio
- 113%
- Price per share
- $38.66
- Number of holders
- 25
- Value change
- +$1,189,574,261
- Number of buys
- 25
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 |
|---|---|---|---|---|---|---|---|---|
| Capital World Investors |
13F
|
Company |
—
class O/S missing
|
23,273,014
|
$759,864,000 | — | 30 Sep 2014 | |
| HIGHFIELDS CAPITAL MANAGEMENT LP |
13F
|
Company |
—
class O/S missing
|
15,371,726
|
$501,887,000 | — | 30 Sep 2014 | |
| VANGUARD GROUP INC |
13F
|
Company |
—
class O/S missing
|
12,808,748
|
$418,206,000 | — | 30 Sep 2014 | |
| PARNASSUS INVESTMENTS, LLC |
13F
|
Company |
—
class O/S missing
|
9,277,250
|
$302,902,000 | — | 30 Sep 2014 | |
| SCHOONER CAPITAL CORP |
13F
|
Company |
—
class O/S missing
|
8,251,277
|
$269,404,000 | — | 30 Sep 2014 | |
| STATE STREET CORP |
13F
|
Company |
—
class O/S missing
|
7,552,350
|
$246,583,000 | — | 30 Sep 2014 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
—
class O/S missing
|
6,795,462
|
$221,872,000 | — | 30 Sep 2014 | |
| Capital International Investors |
13F
|
Company |
—
class O/S missing
|
5,188,584
|
$169,407,000 | — | 30 Sep 2014 | |
| BlackRock Institutional Trust Company, N.A. |
13F
|
Company |
—
class O/S missing
|
4,559,424
|
$148,865,000 | — | 30 Sep 2014 | |
| River Road Asset Management, LLC |
13F
|
Company |
—
class O/S missing
|
4,420,561
|
$144,331,000 | — | 30 Sep 2014 | |
| CAPITAL GUARDIAN TRUST CO |
13F
|
Company |
—
class O/S missing
|
4,389,986
|
$143,333,000 | — | 30 Sep 2014 | |
| Owl Creek Asset Management, L.P. |
13F
|
Company |
—
class O/S missing
|
4,204,072
|
$137,263,000 | — | 30 Sep 2014 | |
| Bank of New York Mellon Corp |
13F
|
Company |
—
class O/S missing
|
3,807,921
|
$124,328,000 | — | 30 Sep 2014 | |
| WASATCH ADVISORS LP |
13F
|
Company |
—
class O/S missing
|
3,416,176
|
$111,538,000 | — | 30 Sep 2014 | |
| BlackRock Fund Advisors |
13F
|
Company |
—
class O/S missing
|
3,236,682
|
$105,678,000 | — | 30 Sep 2014 | |
| BROOKFIELD Corp /ON/ |
13F
|
Company |
—
class O/S missing
|
3,228,388
|
$105,406,000 | — | 30 Sep 2014 | |
| Schooner Foundation |
13F
|
Company |
1.1%
|
3,202,724
|
$104,569,000 | — | 30 Sep 2014 | |
| RS INVESTMENT MANAGEMENT CO LLC |
13F
|
Company |
—
class O/S missing
|
2,909,848
|
$95,007,000 | — | 30 Sep 2014 | |
| NORTHERN TRUST CORP |
13F
|
Company |
—
class O/S missing
|
2,722,507
|
$88,890,000 | — | 30 Sep 2014 | |
| MUNDER CAPITAL MANAGEMENT |
13F
|
Company |
—
class O/S missing
|
2,344,418
|
$76,545,000 | — | 30 Sep 2014 | |
| Invesco Ltd. |
13F
|
Company |
—
class O/S missing
|
2,245,641
|
$73,320,000 | — | 30 Sep 2014 | |
| Makaira Partners LLC |
13F
|
Company |
—
class O/S missing
|
1,934,151
|
$63,150,000 | — | 30 Sep 2014 | |
| FMR LLC |
13F
|
Company |
—
class O/S missing
|
1,917,137
|
$62,595,000 | — | 30 Sep 2014 | |
| Allianz Asset Management GmbH |
13F
|
Company |
—
class O/S missing
|
1,853,750
|
$60,525,000 | — | 30 Sep 2014 | |
| ELLIOTT MANAGEMENT CORP |
13F
|
Company |
—
class O/S missing
|
1,600,643
|
$52,261,000 | — | 30 Sep 2014 | |
| NORGES BANK |
13F
|
Company |
—
class O/S missing
|
1,419,468
|
$46,346,000 | — | 30 Sep 2014 | |
| MORGAN STANLEY |
13F
|
Company |
—
class O/S missing
|
1,258,691
|
$41,098,000 | — | 30 Sep 2014 | |
| WELCH & FORBES LLC |
13F
|
Company |
—
class O/S missing
|
1,248,582
|
$40,766,000 | — | 30 Sep 2014 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
—
class O/S missing
|
1,240,804
|
$40,460,000 | — | 30 Sep 2014 | |
| BlackRock Group LTD |
13F
|
Company |
—
class O/S missing
|
1,156,668
|
$37,765,000 | — | 30 Sep 2014 | |
| CONFLUENCE INVESTMENT MANAGEMENT LLC |
13F
|
Company |
—
class O/S missing
|
1,067,259
|
$34,846,000 | — | 30 Sep 2014 | |
| PICTET ASSET MANAGEMENT LTD |
13F
|
Company |
—
class O/S missing
|
1,019,721
|
$33,294,000 | — | 30 Sep 2014 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
—
class O/S missing
|
1,005,797
|
$32,839,000 | — | 30 Sep 2014 | |
| Stonerise Capital Management, LLC |
13F
|
Company |
—
class O/S missing
|
1,000,000
|
$32,650,000 | — | 30 Sep 2014 | |
| TOBAM |
13F
|
Company |
—
class O/S missing
|
989,477
|
$32,306,000 | — | 30 Sep 2014 | |
| COLRAIN CAPITAL LLC |
13F
|
Company |
—
class O/S missing
|
960,520
|
$31,361,000 | — | 30 Sep 2014 | |
| GW CAPITAL INC |
13F
|
Company |
—
class O/S missing
|
914,664
|
$29,864,000 | — | 30 Sep 2014 | |
| RAYMOND JAMES & ASSOCIATES |
13F
|
Company |
—
class O/S missing
|
836,760
|
$27,320,000 | — | 30 Sep 2014 | |
| Legal & General Group Plc |
13F
|
Company |
—
class O/S missing
|
780,653
|
$25,490,000 | — | 30 Sep 2014 | |
| BLAIR WILLIAM & CO/IL |
13F
|
Company |
—
class O/S missing
|
740,147
|
$24,165,000 | — | 30 Sep 2014 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
—
class O/S missing
|
679,493
|
$22,190,000 | — | 30 Sep 2014 | |
| TIAA CREF INVESTMENT MANAGEMENT LLC |
13F
|
Company |
—
class O/S missing
|
656,774
|
$21,444,000 | — | 30 Sep 2014 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
—
class O/S missing
|
607,922
|
$19,849,000 | — | 30 Sep 2014 | |
| NEW YORK STATE COMMON RETIREMENT FUND |
13F
|
Company |
—
class O/S missing
|
591,825
|
$19,323,000 | — | 30 Sep 2014 | |
| GUGGENHEIM CAPITAL LLC |
13F
|
Company |
—
class O/S missing
|
585,224
|
$19,108,000 | — | 30 Sep 2014 | |
| BARCLAYS PLC |
13F
|
Company |
—
class O/S missing
|
588,146
|
$18,824,000 | — | 30 Sep 2014 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
—
class O/S missing
|
568,125
|
$18,550,000 | — | 30 Sep 2014 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
—
class O/S missing
|
548,178
|
$17,898,000 | — | 30 Sep 2014 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
—
class O/S missing
|
537,607
|
$17,554,000 | — | 30 Sep 2014 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
—
class O/S missing
|
495,262
|
$16,171,000 | — | 30 Sep 2014 |
Institutional Holders of IRON MOUNTAIN INC - Common Stock (IRM) as of Q4 2014
As of 31 Dec 2014,
IRON MOUNTAIN INC - Common Stock (IRM) was held by
25 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
33,972,016 shares.
The largest 10 holders included
PARNASSUS INVESTMENTS /CA, HIGHFIELDS CAPITAL MANAGEMENT LP, River Road Asset Management, LLC, Schooner Foundation, WASATCH ADVISORS INC, VICTORY CAPITAL MANAGEMENT INC, Brookfield Asset Management Inc., BLAIR WILLIAM & CO/IL, PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO, and RHUMBLINE ADVISERS.
This page lists
25
institutional shareholders reporting positions in this security
for the Q4 2014 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q4 2014 vs Q3 2014 Across Filers
Q3 2014 holders
1
Q4 2014 holders
25
Holder diff
24
| Investor | Q3 2014 Shares | Q4 2014 Shares | Share Diff | Share Chg % | Q3 2014 Value $ | Q4 2014 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.