Security key
46284V101
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 236,401,763
- Total 13F value
- $18,948,590,587
- Share change
- +2,622,059
- Put/Call ratio
- 63%
- SEC-reported price per share
- $80.21
- Number of holders
- 929
- Value change
- +$213,667,716
- Number of buys
- 412
- Number of sells
- 398
- 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
Q1 2024
Institutions
929
Top holders
10
IRM full security history
Ownership snapshot
Full 13F holder table
IRON MOUNTAIN INC SEC filings
IRON MOUNTAIN INC company facts
Broader feeds
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
31 Dec 2023
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%
BlackRock Finance, Inc.
7.8%
COHEN & STEERS, INC.
7.6%
STATE STREET CORP
4.6%
GEODE CAPITAL MANAGEMENT, LLC
2.4%
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%
|
$3,238,332,197
46,275,110 shares
|
— | 31 Dec 2023 |
| BlackRock Finance, Inc. |
13F
Company
|
7.8%
|
$1,628,630,089
23,272,793 shares
|
— | 31 Dec 2023 |
| COHEN & STEERS, INC. |
13F
Company
|
7.6%
|
$1,572,936,000
22,475,614 shares
|
— | 31 Dec 2023 |
| STATE STREET CORP |
13F
Company
|
4.6%
|
$973,916,145
13,792,936 shares
|
— | 31 Dec 2023 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
2.4%
|
$493,198,085
7,064,776 shares
|
— | 31 Dec 2023 |
| DEUTSCHE BANK AG\ |
13F
Company
|
1.6%
|
$327,451,046
4,679,209 shares
|
— | 31 Dec 2023 |
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 Q1 2024
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
929
Shares
236,401,763
Rows available
929
| 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 Q1 2024 vs Q1 2024 Across Filers
Q1 2024 holders
929
Q1 2024 holders
929
Holder diff
0
| Investor | Q1 2024 Shares | Q1 2024 Shares | Share Diff | Share Chg % | Q1 2024 value | Q1 2024 value | Value change | Value Chg % |
|---|