PORTSMOUTH, NH
IRON MOUNTAIN INCIRM— Latest position per institution from SEC 13F filings
15
Institutional holders
241.84M
Total shares held
25.76B
Estimated value
12.09M
Avg. position size
VANGUARD GROUP INC
CIK 102909
Shares
46.63M
Value
3.87B
Filed
Dec 31, 2025
BLACKROCK, INC.
CIK 2012383
Shares
33.57M
Value
4.24B
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
27.89M
Value
2.50B
Filed
Jun 30, 2024
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
25.57M
Value
3.23B
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
18.95M
Value
2.39B
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
17.63M
Value
2.24B
Filed
Jun 30, 2026
COHEN & STEERS, INC.
CIK 1284812
Shares
12.02M
Value
1.52M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
8.65M
Value
1.09B
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
7.87M
Value
994.36M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
4.63M
Value
584.31M
Filed
Jun 30, 2026
MORGAN STANLEY
CIK 895421
Shares
4.43M
Value
559.16M
Filed
Jun 30, 2026
PRINCIPAL FINANCIAL GROUP INC
CIK 1126328
Shares
4.37M
Value
552.40M
Filed
Jun 30, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 884546
Shares
4.26M
Value
538.52M
Filed
Jun 30, 2026
NORTHERN TRUST CORP
CIK 73124
Shares
4.22M
Value
533.40M
Filed
Jun 30, 2026
NORGES BANK
CIK 1374170
Shares
4.21M
Value
532.36M
Filed
Jun 30, 2026
INVESCO LTD.
CIK 914208
Shares
4.07M
Value
513.53M
Filed
Jun 30, 2026
PICTET ASSET MANAGEMENT SA
CIK 1361570
Shares
3.37M
Value
191.47M
Filed
Jun 30, 2023
LEGAL & GENERAL GROUP PLC
CIK 764068
Shares
3.24M
Value
409.84M
Filed
Jun 30, 2026
UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC
CIK 861177
Shares
3.19M
Value
403.38M
Filed
Jun 30, 2026
DEUTSCHE BANK AG\
CIK 948046
Shares
3.05M
Value
385.13M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | 102909 | 46.63M | 3.87B | Dec 31, 2025 |
| 2 | BLACKROCK, INC. | 2012383 | 33.57M | 4.24B | Jun 30, 2026 |
| 3 | BLACKROCK FINANCE, INC. | 1364742 | 27.89M | 2.50B | Jun 30, 2024 |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 25.57M | 3.23B | Jun 30, 2026 |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 18.95M | 2.39B | Jun 30, 2026 |
| 6 | STATE STREET CORP | 93751 | 17.63M | 2.24B | Jun 30, 2026 |
| 7 | COHEN & STEERS, INC. | 1284812 | 12.02M | 1.52M | Jun 30, 2026 |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 8.65M | 1.09B | Jun 30, 2026 |
| 9 | FMR LLC | 315066 | 7.87M | 994.36M | Jun 30, 2026 |
| 10 | DIMENSIONAL FUND ADVISORS LP | 354204 | 4.63M | 584.31M | Jun 30, 2026 |
| 11 | MORGAN STANLEY | 895421 | 4.43M | 559.16M | Jun 30, 2026 |
| 12 | PRINCIPAL FINANCIAL GROUP INC | 1126328 | 4.37M | 552.40M | Jun 30, 2026 |
| 13 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 884546 | 4.26M | 538.52M | Jun 30, 2026 |
| 14 | NORTHERN TRUST CORP | 73124 | 4.22M | 533.40M | Jun 30, 2026 |
| 15 | NORGES BANK | 1374170 | 4.21M | 532.36M | Jun 30, 2026 |
| 16 | INVESCO LTD. | 914208 | 4.07M | 513.53M | Jun 30, 2026 |
| 17 | PICTET ASSET MANAGEMENT SA | 1361570 | 3.37M | 191.47M | Jun 30, 2023 |
| 18 | LEGAL & GENERAL GROUP PLC | 764068 | 3.24M | 409.84M | Jun 30, 2026 |
| 19 | UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC | 861177 | 3.19M | 403.38M | Jun 30, 2026 |
| 20 | DEUTSCHE BANK AG\ | 948046 | 3.05M | 385.13M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.