- Type / Class
- Equity / Common Stock
- Shares outstanding
- 295,766,873
- Total 13F shares
- 205,327,999
- Share change
- +3,232,746
- Total reported value
- $6,354,199,979
- Put/Call ratio
- 11%
- Price per share
- $31.02
- Number of holders
- 310
- Value change
- +$99,938,486
- Number of buys
- 143
- Number of sells
- 158
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 |
9.9%
|
29,289,045
|
$907,961,000 | — | 30 Jun 2015 | |
| Capital World Investors |
13F
|
Company |
6.8%
|
19,989,577
|
$619,677,000 | — | 30 Jun 2015 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
4.4%
|
12,989,404
|
$402,672,000 | — | 30 Jun 2015 | |
| PARNASSUS INVESTMENTS, LLC |
13F
|
Company |
3.8%
|
11,299,124
|
$350,273,000 | — | 30 Jun 2015 | |
| Capital International Investors |
13F
|
Company |
3.1%
|
9,091,842
|
$281,847,000 | — | 30 Jun 2015 | |
| SCHOONER CAPITAL CORP |
13F
|
Company |
2.8%
|
8,346,463
|
$258,740,000 | — | 30 Jun 2015 | |
| STATE STREET CORP |
13F
|
Company |
2.6%
|
7,694,795
|
$238,531,000 | — | 30 Jun 2015 | |
| BlackRock Institutional Trust Company, N.A. |
13F
|
Company |
2.2%
|
6,457,006
|
$200,167,000 | — | 30 Jun 2015 | |
| HIGHFIELDS CAPITAL MANAGEMENT LP |
13F
|
Company |
2.1%
|
6,165,295
|
$191,124,000 | — | 30 Jun 2015 | |
| River Road Asset Management, LLC |
13F
|
Company |
1.7%
|
4,915,788
|
$152,389,000 | — | 30 Jun 2015 | |
| Epoch Investment Partners, Inc. |
13F
|
Company |
1.6%
|
4,712,952
|
$146,102,000 | — | 30 Jun 2015 | |
| BlackRock Fund Advisors |
13F
|
Company |
1.3%
|
3,911,500
|
$121,257,000 | — | 30 Jun 2015 | |
| Owl Creek Asset Management, L.P. |
13F
|
Company |
1.2%
|
3,625,997
|
$112,406,000 | — | 30 Jun 2015 | |
| Schooner Foundation |
13F
|
Company |
1.1%
|
3,371,561
|
$104,518,000 | — | 30 Jun 2015 | |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
|
Company |
1%
|
3,088,933
|
$95,756,923 | — | 30 Jun 2015 | |
| WASATCH ADVISORS LP |
13F
|
Company |
0.85%
|
2,507,799
|
$77,742,000 | — | 30 Jun 2015 | |
| CAPITAL GUARDIAN TRUST CO |
13F
|
Company |
0.84%
|
2,494,883
|
$77,341,000 | — | 30 Jun 2015 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.82%
|
2,432,596
|
$75,411,000 | — | 30 Jun 2015 | |
| Makaira Partners LLC |
13F
|
Company |
0.74%
|
2,180,610
|
$67,599,000 | — | 30 Jun 2015 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.72%
|
2,122,173
|
$65,788,000 | — | 30 Jun 2015 | |
| RAYMOND JAMES & ASSOCIATES |
13F
|
Company |
0.63%
|
1,854,678
|
$57,495,000 | — | 30 Jun 2015 | |
| JANUS HENDERSON INVESTORS US LLC |
13F
|
Company |
0.57%
|
1,676,741
|
$51,979,000 | — | 30 Jun 2015 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.56%
|
1,653,454
|
$51,256,000 | — | 30 Jun 2015 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.56%
|
1,649,079
|
$51,029,000 | — | 30 Jun 2015 | |
| RS INVESTMENT MANAGEMENT CO LLC |
13F
|
Company |
0.54%
|
1,605,306
|
$49,764,000 | — | 30 Jun 2015 | |
| Uniplan Investment Counsel, Inc. |
13F
|
Company |
0.53%
|
1,558,695
|
$48,319,000 | — | 30 Jun 2015 | |
| NORGES BANK |
13F
|
Company |
0.5%
|
1,487,933
|
$46,126,000 | — | 30 Jun 2015 | |
| BlackRock Group LTD |
13F
|
Company |
0.46%
|
1,358,508
|
$42,114,000 | — | 30 Jun 2015 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.46%
|
1,351,345
|
$41,889,000 | — | 30 Jun 2015 | |
| COLRAIN CAPITAL LLC |
13F
|
Company |
0.44%
|
1,304,800
|
$40,449,000 | — | 30 Jun 2015 | |
| WELCH & FORBES LLC |
13F
|
Company |
0.43%
|
1,271,261
|
$39,409,000 | — | 30 Jun 2015 | |
| CONFLUENCE INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.43%
|
1,263,494
|
$39,168,000 | — | 30 Jun 2015 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.39%
|
1,168,275
|
$36,218,000 | — | 30 Jun 2015 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.38%
|
1,130,574
|
$35,047,000 | — | 30 Jun 2015 | |
| GUGGENHEIM CAPITAL LLC |
13F
|
Company |
0.34%
|
998,095
|
$30,941,000 | — | 30 Jun 2015 | |
| WINTON GROUP Ltd |
13F
|
Company |
0.31%
|
924,781
|
$28,668,000 | — | 30 Jun 2015 | |
| BLAIR WILLIAM & CO/IL |
13F
|
Company |
0.31%
|
923,738
|
$28,635,000 | — | 30 Jun 2015 | |
| STIFEL FINANCIAL CORP |
13F
|
Company |
0.29%
|
870,101
|
$26,973,000 | — | 30 Jun 2015 | |
| GW CAPITAL INC |
13F
|
Company |
0.28%
|
833,867
|
$25,850,000 | — | 30 Jun 2015 | |
| Legal & General Group Plc |
13F
|
Company |
0.27%
|
806,314
|
$24,998,000 | — | 30 Jun 2015 | |
| TIAA CREF INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.25%
|
743,525
|
$23,049,000 | — | 30 Jun 2015 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.24%
|
710,801
|
$22,034,000 | — | 30 Jun 2015 | |
| Stonerise Capital Management, LLC |
13F
|
Company |
0.23%
|
675,000
|
$20,925,000 | — | 30 Jun 2015 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.23%
|
666,303
|
$20,656,000 | — | 30 Jun 2015 | |
| Sumitomo Mitsui Trust Group, Inc. |
13F
|
Company |
0.22%
|
651,313
|
$20,191,000 | — | 30 Jun 2015 | |
| UNITED SERVICES AUTOMOBILE ASSOCIATION |
13F
|
Company |
0.22%
|
649,544
|
$20,136,000 | — | 30 Jun 2015 | |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM |
13F
|
Company |
0.22%
|
641,699
|
$19,893,000 | — | 30 Jun 2015 | |
| MORGAN STANLEY |
13F
|
Company |
0.21%
|
608,221
|
$18,854,000 | — | 30 Jun 2015 | |
| THOMPSON SIEGEL & WALMSLEY LLC |
13F
|
Company |
0.21%
|
608,070
|
$18,850,000 | — | 30 Jun 2015 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.2%
|
587,010
|
$18,197,000 | — | 30 Jun 2015 |
Institutional Holders of IRON MOUNTAIN INC - Common Stock (IRM) as of Q3 2015
As of 30 Sep 2015,
IRON MOUNTAIN INC - Common Stock (IRM) was held by
310 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
205,327,999 shares.
The largest 10 holders included
VANGUARD GROUP INC, Capital World Investors, PRICE T ROWE ASSOCIATES INC /MD/, PARNASSUS INVESTMENTS /CA, Capital International Investors, Epoch Investment Partners, Inc., SCHOONER CAPITAL Corp, STATE STREET CORP, BlackRock Institutional Trust Company, N.A., and HIGHFIELDS CAPITAL MANAGEMENT LP.
This page lists
310
institutional shareholders reporting positions in this security
for the Q3 2015 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q3 2015 vs Q2 2015 Across Filers
Q2 2015 holders
336
Q3 2015 holders
310
Holder diff
-26
| Investor | Q2 2015 Shares | Q3 2015 Shares | Share Diff | Share Chg % | Q2 2015 Value $ | Q3 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.