- Type / Class
- Equity / Common Stock
- Shares outstanding
- 295,766,873
- Total 13F shares
- 121,496
- Share change
- +20,366
- Total reported value
- $3,353,169
- Price per share
- $32.03
- Number of holders
- 2
- Value change
- +$561,542
- Number of buys
- 1
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
|
20,948,014
|
$635,772,000 | — | 31 Dec 2013 | |
| VANGUARD GROUP INC |
13F
|
Company |
—
class O/S missing
|
11,617,764
|
$352,599,000 | — | 31 Dec 2013 | |
| DAVIS SELECTED ADVISERS |
13F
|
Company |
—
class O/S missing
|
9,475,988
|
$287,596,000 | — | 31 Dec 2013 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
—
class O/S missing
|
9,316,078
|
$282,743,000 | — | 31 Dec 2013 | |
| HIGHFIELDS CAPITAL MANAGEMENT LP |
13F
|
Company |
—
class O/S missing
|
8,828,516
|
$267,945,000 | — | 31 Dec 2013 | |
| SCHOONER CAPITAL CORP |
13F
|
Company |
—
class O/S missing
|
8,638,934
|
$262,192,000 | — | 31 Dec 2013 | |
| PARNASSUS INVESTMENTS, LLC |
13F
|
Company |
—
class O/S missing
|
8,382,111
|
$254,397,000 | — | 31 Dec 2013 | |
| STATE STREET CORP |
13F
|
Company |
—
class O/S missing
|
7,058,694
|
$214,230,000 | — | 31 Dec 2013 | |
| Bank of New York Mellon Corp |
13F
|
Company |
—
class O/S missing
|
4,879,561
|
$148,095,000 | — | 31 Dec 2013 | |
| BlackRock Institutional Trust Company, N.A. |
13F
|
Company |
—
class O/S missing
|
4,296,900
|
$130,411,000 | — | 31 Dec 2013 | |
| BROOKFIELD Corp /ON/ |
13F
|
Company |
—
class O/S missing
|
3,864,014
|
$117,294,000 | — | 31 Dec 2013 | |
| CAPITAL GUARDIAN TRUST CO |
13F
|
Company |
—
class O/S missing
|
3,781,818
|
$114,778,000 | — | 31 Dec 2013 | |
| River Road Asset Management, LLC |
13F
|
Company |
—
class O/S missing
|
3,699,304
|
$112,274,000 | — | 31 Dec 2013 | |
| FMR LLC |
13F
|
Company |
—
class O/S missing
|
3,491,349
|
$105,962,000 | — | 31 Dec 2013 | |
| RS INVESTMENT MANAGEMENT CO LLC |
13F
|
Company |
—
class O/S missing
|
3,266,036
|
$99,128,000 | — | 31 Dec 2013 | |
| Capital International Investors |
13F
|
Company |
—
class O/S missing
|
3,204,884
|
$97,268,000 | — | 31 Dec 2013 | |
| Invesco Ltd. |
13F
|
Company |
—
class O/S missing
|
3,077,151
|
$93,392,000 | — | 31 Dec 2013 | |
| WASATCH ADVISORS LP |
13F
|
Company |
—
class O/S missing
|
2,531,777
|
$76,839,000 | — | 31 Dec 2013 | |
| MUNDER CAPITAL MANAGEMENT |
13F
|
Company |
—
class O/S missing
|
2,496,353
|
$75,764,000 | — | 31 Dec 2013 | |
| JENNISON ASSOCIATES LLC |
13F
|
Company |
—
class O/S missing
|
2,494,098
|
$75,696,000 | — | 31 Dec 2013 | |
| NORTHERN TRUST CORP |
13F
|
Company |
—
class O/S missing
|
2,442,639
|
$74,134,000 | — | 31 Dec 2013 | |
| BlackRock Fund Advisors |
13F
|
Company |
—
class O/S missing
|
2,046,023
|
$62,097,000 | — | 31 Dec 2013 | |
| Makaira Partners LLC |
13F
|
Company |
—
class O/S missing
|
2,014,549
|
$61,142,000 | — | 31 Dec 2013 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
—
class O/S missing
|
1,625,466
|
$49,332,000 | — | 31 Dec 2013 | |
| NORGES BANK |
13F
|
Company |
—
class O/S missing
|
1,402,840
|
$42,576,000 | — | 31 Dec 2013 | |
| Owl Creek Asset Management, L.P. |
13F
|
Company |
—
class O/S missing
|
1,278,845
|
$38,813,000 | — | 31 Dec 2013 | |
| WELCH & FORBES LLC |
13F
|
Company |
—
class O/S missing
|
1,265,043
|
$38,394,000 | — | 31 Dec 2013 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
—
class O/S missing
|
1,256,966
|
$38,138,000 | — | 31 Dec 2013 | |
| BlackRock Group LTD |
13F
|
Company |
—
class O/S missing
|
1,074,089
|
$32,600,000 | — | 31 Dec 2013 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
—
class O/S missing
|
1,060,402
|
$32,184,000 | — | 31 Dec 2013 | |
| GW CAPITAL INC |
13F
|
Company |
—
class O/S missing
|
1,034,579
|
$31,399,000 | — | 31 Dec 2013 | |
| TOBAM |
13F
|
Company |
—
class O/S missing
|
1,004,482
|
$30,486,000 | — | 31 Dec 2013 | |
| Stonerise Capital Management, LLC |
13F
|
Company |
—
class O/S missing
|
1,000,000
|
$30,350,000 | — | 31 Dec 2013 | |
| CONFLUENCE INVESTMENT MANAGEMENT LLC |
13F
|
Company |
—
class O/S missing
|
964,742
|
$29,280,000 | — | 31 Dec 2013 | |
| Allianz Asset Management GmbH |
13F
|
Company |
—
class O/S missing
|
883,760
|
$26,822,000 | — | 31 Dec 2013 | |
| CREDIT SUISSE AG/ |
13F
|
Company |
—
class O/S missing
|
863,412
|
$26,206,000 | — | 31 Dec 2013 | |
| MACKENZIE FINANCIAL CORP |
13F
|
Company |
—
class O/S missing
|
792,871
|
$24,064,000 | — | 31 Dec 2013 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
—
class O/S missing
|
790,280
|
$23,985,000 | — | 31 Dec 2013 | |
| FARALLON CAPITAL MANAGEMENT LLC |
13F
|
Company |
—
class O/S missing
|
790,000
|
$23,977,000 | — | 31 Dec 2013 | |
| Legal & General Group Plc |
13F
|
Company |
—
class O/S missing
|
786,355
|
$23,866,000 | — | 31 Dec 2013 | |
| MORGAN STANLEY |
13F
|
Company |
—
class O/S missing
|
744,122
|
$22,586,000 | — | 31 Dec 2013 | |
| TIAA CREF INVESTMENT MANAGEMENT LLC |
13F
|
Company |
—
class O/S missing
|
713,297
|
$21,649,000 | — | 31 Dec 2013 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
—
class O/S missing
|
681,411
|
$20,681,000 | — | 31 Dec 2013 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
—
class O/S missing
|
668,262
|
$20,282,000 | — | 31 Dec 2013 | |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM |
13F
|
Company |
—
class O/S missing
|
628,074
|
$19,213,000 | — | 31 Dec 2013 | |
| PANAGORA ASSET MANAGEMENT INC |
13F
|
Company |
—
class O/S missing
|
618,862
|
$18,782,000 | — | 31 Dec 2013 | |
| Westchester Capital Management, LLC |
13F
|
Company |
—
class O/S missing
|
609,203
|
$18,490,000 | — | 31 Dec 2013 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
—
class O/S missing
|
608,864
|
$18,480,000 | — | 31 Dec 2013 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
—
class O/S missing
|
583,486
|
$17,707,000 | — | 31 Dec 2013 | |
| NEW YORK STATE COMMON RETIREMENT FUND |
13F
|
Company |
—
class O/S missing
|
563,497
|
$17,102,000 | — | 31 Dec 2013 |
Institutional Holders of IRON MOUNTAIN INC - Common Stock (IRM) as of Q1 2014
As of 31 Mar 2014,
IRON MOUNTAIN INC - Common Stock (IRM) was held by
2 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
121,496 shares.
The largest 2 holders included
Yellowstone Partners, LLC and CT Financial Advisors LLC.
This page lists
2
institutional shareholders reporting positions in this security
for the Q1 2014 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2014 vs Q4 2013 Across Filers
Q4 2013 holders
1
Q1 2014 holders
2
Holder diff
1
| Investor | Q4 2013 Shares | Q1 2014 Shares | Share Diff | Share Chg % | Q4 2013 Value $ | Q1 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.