- Type / Class
- Equity / Common Stock
- Shares outstanding
- 295,766,873
- Total 13F shares
- 195,915,658
- Share change
- +161,842,191
- Total reported value
- $7,145,807,657
- Put/Call ratio
- 31%
- Price per share
- $36.48
- Number of holders
- 327
- Value change
- +$5,902,683,517
- Number of buys
- 311
- Number of sells
- 11
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.
Related Filing Research
- Latest 13F filings for newly reported positions.
- Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
- Latest 10-Q/10-K reports for financial context tied to this issuer.
- Recent insider transactions for executive and insider activity.
- SEC investors directory and top value investors for manager drilldown.
- Back to full security ownership history.
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 |
—
class O/S missing
|
26,267,170
|
$1,015,489,000 | — | 31 Dec 2014 | |
| Capital World Investors |
13F
|
Company |
—
class O/S missing
|
24,940,333
|
$964,193,000 | — | 31 Dec 2014 | |
| PARNASSUS INVESTMENTS, LLC |
13F
|
Company |
3.6%
|
10,556,778
|
$408,125,000 | — | 31 Dec 2014 | |
| SCHOONER CAPITAL CORP |
13F
|
Company |
—
class O/S missing
|
8,848,169
|
$342,070,000 | — | 31 Dec 2014 | |
| STATE STREET CORP |
13F
|
Company |
—
class O/S missing
|
8,450,910
|
$326,713,000 | — | 31 Dec 2014 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
—
class O/S missing
|
7,145,194
|
$276,233,000 | — | 31 Dec 2014 | |
| HIGHFIELDS CAPITAL MANAGEMENT LP |
13F
|
Company |
2.2%
|
6,396,257
|
$247,279,000 | — | 31 Dec 2014 | |
| BlackRock Institutional Trust Company, N.A. |
13F
|
Company |
—
class O/S missing
|
5,742,958
|
$222,023,000 | — | 31 Dec 2014 | |
| Capital International Investors |
13F
|
Company |
—
class O/S missing
|
5,563,923
|
$215,101,000 | — | 31 Dec 2014 | |
| River Road Asset Management, LLC |
13F
|
Company |
1.6%
|
4,766,011
|
$184,254,000 | — | 31 Dec 2014 | |
| Owl Creek Asset Management, L.P. |
13F
|
Company |
—
class O/S missing
|
4,510,555
|
$174,378,000 | — | 31 Dec 2014 | |
| BlackRock Fund Advisors |
13F
|
Company |
—
class O/S missing
|
4,058,086
|
$156,886,000 | — | 31 Dec 2014 | |
| CAPITAL GUARDIAN TRUST CO |
13F
|
Company |
—
class O/S missing
|
3,888,147
|
$150,316,000 | — | 31 Dec 2014 | |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
|
Company |
—
class O/S missing
|
3,522,769
|
$136,190,251 | — | 31 Dec 2014 | |
| Schooner Foundation |
13F
|
Company |
1.1%
|
3,371,561
|
$130,345,000 | — | 31 Dec 2014 | |
| WASATCH ADVISORS LP |
13F
|
Company |
1.1%
|
3,197,165
|
$123,602,000 | — | 31 Dec 2014 | |
| VICTORY CAPITAL MANAGEMENT INC |
13F
|
Company |
—
mixed-class rows
|
2,487,284
mixed-class rows
|
$96,158,000 | — | 31 Dec 2014 | |
| NORTHERN TRUST CORP |
13F
|
Company |
—
class O/S missing
|
2,199,775
|
$85,043,000 | — | 31 Dec 2014 | |
| Bank of New York Mellon Corp |
13F
|
Company |
—
class O/S missing
|
2,025,337
|
$78,300,000 | — | 31 Dec 2014 | |
| RS INVESTMENT MANAGEMENT CO LLC |
13F
|
Company |
—
class O/S missing
|
1,627,489
|
$62,919,000 | — | 31 Dec 2014 | |
| FMR LLC |
13F
|
Company |
—
class O/S missing
|
1,552,202
|
$60,008,000 | — | 31 Dec 2014 | |
| BROOKFIELD Corp /ON/ |
13F
|
Company |
0.52%
|
1,537,334
|
$59,433,000 | — | 31 Dec 2014 | |
| NORGES BANK |
13F
|
Company |
—
class O/S missing
|
1,522,151
|
$58,846,000 | — | 31 Dec 2014 | |
| MORGAN STANLEY |
13F
|
Company |
—
class O/S missing
|
1,483,512
|
$57,352,000 | — | 31 Dec 2014 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
—
class O/S missing
|
1,442,297
|
$55,757,000 | — | 31 Dec 2014 | |
| Makaira Partners LLC |
13F
|
Company |
—
class O/S missing
|
1,402,658
|
$54,227,000 | — | 31 Dec 2014 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
—
class O/S missing
|
1,368,489
|
$52,838,000 | — | 31 Dec 2014 | |
| WELCH & FORBES LLC |
13F
|
Company |
—
class O/S missing
|
1,344,631
|
$51,984,000 | — | 31 Dec 2014 | |
| COLRAIN CAPITAL LLC |
13F
|
Company |
—
class O/S missing
|
1,328,874
|
$51,374,000 | — | 31 Dec 2014 | |
| BlackRock Group LTD |
13F
|
Company |
—
class O/S missing
|
1,278,632
|
$49,434,000 | — | 31 Dec 2014 | |
| CONFLUENCE INVESTMENT MANAGEMENT LLC |
13F
|
Company |
—
class O/S missing
|
1,177,688
|
$45,529,000 | — | 31 Dec 2014 | |
| RAYMOND JAMES & ASSOCIATES |
13F
|
Company |
—
class O/S missing
|
1,149,324
|
$44,433,000 | — | 31 Dec 2014 | |
| PICTET ASSET MANAGEMENT LTD |
13F
|
Company |
—
class O/S missing
|
1,047,261
|
$40,487,000 | — | 31 Dec 2014 | |
| GW CAPITAL INC |
13F
|
Company |
—
class O/S missing
|
967,357
|
$37,398,000 | — | 31 Dec 2014 | |
| Allianz Asset Management GmbH |
13F
|
Company |
—
class O/S missing
|
920,000
|
$35,567,000 | — | 31 Dec 2014 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
—
class O/S missing
|
865,593
|
$33,464,000 | — | 31 Dec 2014 | |
| BLAIR WILLIAM & CO/IL |
13F
|
Company |
—
mixed-class rows
|
842,056
mixed-class rows
|
$32,553,000 | — | 31 Dec 2014 | |
| Legal & General Group Plc |
13F
|
Company |
—
class O/S missing
|
824,119
|
$31,865,000 | — | 31 Dec 2014 | |
| Stonerise Capital Management, LLC |
13F
|
Company |
—
class O/S missing
|
805,500
|
$31,141,000 | — | 31 Dec 2014 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
—
class O/S missing
|
804,759
|
$31,116,000 | — | 31 Dec 2014 | |
| BARCLAYS PLC |
13F
|
Company |
—
class O/S missing
|
799,492
|
$30,380,000 | — | 31 Dec 2014 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
—
class O/S missing
|
773,649
|
$29,909,000 | — | 31 Dec 2014 | |
| TIAA CREF INVESTMENT MANAGEMENT LLC |
13F
|
Company |
—
class O/S missing
|
741,757
|
$28,676,000 | — | 31 Dec 2014 | |
| Invesco Ltd. |
13F
|
Company |
—
class O/S missing
|
735,275
|
$28,427,000 | — | 31 Dec 2014 | |
| GUGGENHEIM CAPITAL LLC |
13F
|
Company |
—
class O/S missing
|
713,768
|
$27,595,000 | — | 31 Dec 2014 | |
| NEW YORK STATE COMMON RETIREMENT FUND |
13F
|
Company |
—
class O/S missing
|
625,869
|
$24,196,000 | — | 31 Dec 2014 | |
| Nationwide Fund Advisors |
13F
|
Company |
—
class O/S missing
|
576,095
|
$22,272,000 | — | 31 Dec 2014 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
—
class O/S missing
|
576,040
|
$22,270,000 | — | 31 Dec 2014 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
—
class O/S missing
|
564,952
|
$21,842,000 | — | 31 Dec 2014 | |
| THOMPSON SIEGEL & WALMSLEY LLC |
13F
|
Company |
—
class O/S missing
|
547,861
|
$21,180,000 | — | 31 Dec 2014 |
Institutional Holders of IRON MOUNTAIN INC - Common Stock (IRM) as of Q1 2015
As of 31 Mar 2015,
IRON MOUNTAIN INC - Common Stock (IRM) was held by
327 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
195,915,658 shares.
The largest 10 holders included
VANGUARD GROUP INC, Capital World Investors, PARNASSUS INVESTMENTS /CA, Capital International Investors, SCHOONER CAPITAL Corp, STATE STREET CORP, PRICE T ROWE ASSOCIATES INC /MD/, HIGHFIELDS CAPITAL MANAGEMENT LP, BlackRock Institutional Trust Company, N.A., and River Road Asset Management, LLC.
This page lists
328
institutional shareholders reporting positions in this security
for the Q1 2015 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2015 vs Q4 2014 Across Filers
Q4 2014 holders
25
Q1 2015 holders
327
Holder diff
302
| Investor | Q4 2014 Shares | Q1 2015 Shares | Share Diff | Share Chg % | Q4 2014 Value $ | Q1 2015 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.