Security key
46284V101
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 231,708,448
- Total 13F value
- $6,837,063,849
- Share change
- -10,046,409
- Put/Call ratio
- 54%
- SEC-reported price per share
- $29.48
- Number of holders
- 591
- Value change
- -$283,592,825
- Number of buys
- 305
- Number of sells
- 245
- Shares outstanding
- 297,661,125
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2020
Institutions
591
Top holders
10
IRM full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2021
Previous quarter: Q3 2020
IRON MOUNTAIN INC SEC filings
IRON MOUNTAIN INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 46284V101
Recent filing periods:
Ownership snapshot
Top reported holders of IRM - IRON MOUNTAIN INC - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD GROUP INC
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
15/15
Latest evidence
30 Sep 2020
13F
Lead comparable stake: 16%
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD GROUP INC leads the comparable SEC ownership view at 16%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD GROUP INC's linked filing trail.
Comparable ownership
Top 5
VANGUARD GROUP INC
16%
Capital World Investors
12%
BlackRock Finance, Inc.
7.6%
STATE STREET CORP
4.4%
FMR LLC
2.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
Company
|
16%
|
$1,298,740,000
48,478,520 shares
|
— | 30 Sep 2020 |
| Capital World Investors |
13F
Company
|
12%
|
$944,296,000
35,248,074 shares
|
— | 30 Sep 2020 |
| BlackRock Finance, Inc. |
13F
Company
|
7.6%
|
$604,871,000
22,578,243 shares
|
— | 30 Sep 2020 |
| STATE STREET CORP |
13F
Company
|
4.4%
|
$361,491,000
13,192,041 shares
|
— | 30 Sep 2020 |
| FMR LLC |
13F
Company
|
2.5%
|
$196,305,000
7,327,511 shares
|
— | 30 Sep 2020 |
| Epoch Investment Partners, Inc. |
13F
Company
|
1.7%
|
$136,737,000
5,104,056 shares
|
— | 30 Sep 2020 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2020
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
591
Shares
231,708,448
Rows available
591
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2020 vs Q3 2020 Across Filers
Q3 2020 holders
576
Q4 2020 holders
591
Holder diff
15
| Investor | Q3 2020 Shares | Q4 2020 Shares | Share Diff | Share Chg % | Q3 2020 value | Q4 2020 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend