National Pension Service
PensionPosition in IRM — Iron Mountain Inc
CIK 1608046
JEONJU-SI, JEOLLABUK-DO, M5
Position in IRM
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$57,447,682
+$13,589,584 QoQ
Shares Held
454,815
+5.9% QoQ
Ownership
0.153%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#71
of 1,152 holders
Holding Since
Mar 2020
21 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in IRM Over Time
Shares Held
Position Value (USD)
Position in REIT - Specialty
Real Estate · as of Jun 30, 2026National Pension Service holds $803,162,975 across 8 REIT - Specialty names. IRM ranks #4 (7.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | EQIX |
Equinix Inc
|
317,816 | $331,288,220 | |
| 2 | AMT |
American Tower Corp /Ma/
|
1,551,870 | $253,839,375 | |
| 3 | DLR |
Digital Realty Trust, Inc.
|
578,303 | $103,851,652 | |
| 4 | IRM |
Iron Mountain Inc
This page
|
454,815 | $57,447,682 | |
| 5 | CCI |
Crown Castle Inc.
|
674,624 | $51,089,275 | |
| 6 | WY |
Weyerhaeuser Co
|
88,117 | $2,109,520 | |
| 7 | GLPI |
Gaming & Leisure Properties, Inc.
|
39,812 | $1,772,828 | |
| 8 | SBAC |
Sba Communications Corp
|
9,999 | $1,764,423 |
All Filings in IRM
Export CSV
21 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $57,447,682 | 454,815 | Shares | Sole | 2026-08-13 | |
| 2026-03-31 | $43,858,098 | 429,392 | Shares | Sole | 2026-05-12 | |
| 2025-12-31 | $42,223,209 | 509,020 | Shares | Sole | 2026-02-10 | |
| 2025-09-30 | $50,509,231 | 495,480 | Shares | Sole | 2025-11-04 | |
| 2025-06-30 | $48,839,833 | 476,161 | Shares | Sole | 2025-08-08 | |
| 2025-03-31 | $40,690,122 | 472,921 | Shares | Sole | 2025-05-13 | |
| 2024-12-31 | $42,339,674 | 402,813 | Shares | Sole | 2025-02-05 | |
| 2024-09-30 | $54,599,770 | 459,478 | Shares | Sole | 2024-10-30 | |
| 2024-06-30 | $35,694,839 | 398,291 | Shares | Sole | 2024-08-13 | |
| 2024-03-31 | $33,457,836 | 417,128 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $28,966,751 | 413,929 | Shares | Sole | 2024-02-07 | |
| 2023-09-30 | $24,608,079 | 413,929 | Shares | Sole | 2023-11-15 | |
| 2023-06-30 | $24,329,698 | 428,189 | Shares | Sole | 2023-08-16 | |
| 2023-03-31 | $24,726,112 | 467,324 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $25,515,174 | 511,839 | Shares | Sole | 2023-02-24 | |
| 2022-09-30 | $22,055,395 | 501,601 | Shares | Sole | 2023-02-24 | |
| 2022-06-30 | $25,837,153 | 530,646 | Shares | Sole | 2022-08-17 | |
| 2022-03-31 | $28,729,087 | 518,482 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $4,356,210 | 83,245 | Shares | Sole | 2022-02-15 | |
| 2021-09-30 | $3,616,995 | 83,245 | Shares | Sole | 2021-11-18 | |
| 2020-03-31 | $65,259 | 2,742 | Shares | Sole | 2020-05-27 | |
| No filing history on record for this holder in this stock. | ||||||