13F reference period
Q2 2026
Security Snapshot
IRON MTN INC NEW REIT - COM (IRM) Institutional Ownership
CUSIP: 462846106
13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026
Institutions Reporting
1
Shares (Excl. Options)
395
Price
$126.31
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.
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- Security type / class
- Equity / COM
- Symbol
- IRM on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 395
- Total 13F value
- $49,892
- Share change
- -14,051
- Value change
- -$426,000
- Number of holders
- 1
- SEC-reported price per share
- $111.13
Latest holder snapshot
4 signals
Issuer context
Names, identifiers, and filing context for this profile.
1 identity field
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- IRM - IRON MTN INC NEW REIT - COM is tracked under CUSIP 462846106.
- 1 institution reported positions in Q2 2026.
- Schedule 13D/13G significant owner rows are not currently available.
Change
- Holder count moved from 2 to 1 between Q1 2026 and Q2 2026.
- SEC-reported value moved from to
$466.35K
Full value: $466,345 · USD · 31 Mar 2026.$49.89K
Full value: $49,892 · USD · 30 Jun 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 1 institution filings for Q2 2026.
Security key
462846106
13F reference period
Q2 2026
13F holders
1
13D/G owners
0
CIK / CUSIP context first
Open Q2 2026 holders
IRM full holder history
IRON MOUNTAIN INC SEC filings
IRON MOUNTAIN INC company facts
IRON MOUNTAIN INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 462846106:
As of 30 Jun 2026,
1
institutional investors reported holding
395
shares of
IRON MTN INC NEW REIT - COM (IRM).
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
45
Headline period
Q2 2026
Rows shown
1-25 of 45
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 365 | $40,562 | -$3,334 | $111.13 | 1 |
| 2026 Q2 | 395 | $49,892 | -$426,000 | $126.31 | 1 |
| 2026 Q1 | 14,446 | $466,345 | -$511 | $66.23 | 2 |
| 2025 Q4 | 400 | $33,180 | $82.95 | 1 | |
| 2025 Q3 | 400 | $40,776 | $101.94 | 1 | |
| 2025 Q2 | 400 | $41,028 | -$2,564 | $102.57 | 1 |
| 2025 Q1 | 425 | $36,567 | $86.04 | 1 | |
| 2024 Q4 | 425 | $44,672 | -$2,628 | $105.11 | 1 |
| 2024 Q3 | 450 | $53,474 | $118.83 | 1 | |
| 2024 Q2 | 450 | $40,145 | $89.21 | 1 | |
| 2024 Q1 | 31,150 | $2,518,595 | -$214,692 | $80.54 | 2 |
| 2023 Q4 | 33,805 | $2,387,808 | +$2,356,200 | $70.44 | 2 |
| 2023 Q3 | 450 | $27,000 | +$27,000 | $60.00 | 1 |
| 2021 Q4 | 0 | $0 | -$2,417,000 | $111.13 | 0 |
| 2021 Q3 | 55,631 | $2,417,000 | -$5,000 | $43.45 | 1 |
| 2021 Q2 | 55,756 | $2,359,000 | $41.16 | 2 | |
| 2021 Q1 | 55,756 | $2,063,000 | -$633,551 | $38.50 | 2 |
| 2020 Q4 | 75,257 | $2,218,000 | -$43,144 | $29.48 | 3 |
| 2020 Q3 | 76,732 | $2,055,000 | +$40,125 | $26.77 | 2 |
| 2020 Q2 | 75,232 | $1,963,000 | $26.09 | 2 | |
| 2020 Q1 | 75,232 | $1,790,000 | -$18,000 | $23.80 | 2 |
| 2019 Q4 | 75,776 | $2,415,000 | -$10,169 | $32.16 | 4 |
| 2019 Q3 | 76,076 | $2,463,000 | -$108,766 | $32.37 | 4 |
| 2019 Q2 | 79,438 | $2,486,000 | -$23,087 | $31.30 | 4 |
| 2019 Q1 | 80,129 | $2,840,000 | -$1,127,571 | $35.44 | 4 |