NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC
Position in IRM — Iron Mountain Inc
CIK 1629649
MILWAUKEE, WI
Position in IRM
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$1,204,744
+$237,989 QoQ
Shares Held
9,538
+0.8% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#482
of 1,152 holders
Holding Since
Mar 2020
26 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, 2026NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC holds $19,272,212 across 11 REIT - Specialty names. IRM ranks #7 (6.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | EQIX |
Equinix Inc
|
3,161 | $3,294,994 | |
| 2 | LAMR |
Lamar Advertising Co/New
|
19,582 | $3,054,400 | |
| 3 | GLPI |
Gaming & Leisure Properties, Inc.
|
63,710 | $2,837,006 | |
| 4 | AMT |
American Tower Corp /Ma/
|
14,937 | $2,443,245 | |
| 5 | DLR |
Digital Realty Trust, Inc.
|
10,591 | $1,901,931 | |
| 6 | RYN |
Rayonier Inc
|
62,240 | $1,324,467 | |
| 7 | IRM |
Iron Mountain Inc
This page
|
9,538 | $1,204,744 | |
| 8 | CCI |
Crown Castle Inc.
|
13,993 | $1,059,689 |
All Filings in IRM
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,204,744 | 9,538 | Shares | Defined | 2026-08-12 | |
| 2026-03-31 | $966,755 | 9,465 | Shares | Defined | 2026-05-08 | |
| 2025-12-31 | $783,462 | 9,445 | Shares | Defined | 2026-02-05 | |
| 2025-09-30 | $959,663 | 9,414 | Shares | Defined | 2025-11-07 | |
| 2025-06-30 | $965,491 | 9,413 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $803,871 | 9,343 | Shares | Defined | 2025-05-14 | |
| 2024-12-31 | $979,414 | 9,318 | Shares | Defined | 2025-02-11 | |
| 2024-09-30 | $1,104,762 | 9,297 | Shares | Defined | 2024-11-13 | |
| 2024-06-30 | $835,975 | 9,328 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $743,065 | 9,264 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $646,825 | 9,243 | Shares | Defined | 2024-02-13 | |
| 2023-09-30 | $547,653 | 9,212 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $522,687 | 9,199 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $483,544 | 9,139 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $454,183 | 9,111 | Shares | Defined | 2023-02-21 | |
| 2022-09-30 | $474,700 | 10,796 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $565,436 | 11,613 | Shares | Defined | 2022-08-04 | |
| 2022-03-31 | $638,212 | 11,518 | Shares | Defined | 2022-05-09 | |
| 2021-12-31 | $681,702 | 13,027 | Shares | Defined | 2022-02-03 | |
| 2021-09-30 | $571,237 | 13,147 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $554,899 | 13,112 | Shares | Defined | 2021-08-13 | |
| 2021-03-31 | $483,905 | 13,075 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $466,196 | 15,814 | Shares | Defined | 2021-02-12 | |
| 2020-09-30 | $423,683 | 15,815 | Shares | Defined | 2020-11-13 | |
| 2020-06-30 | $412,771 | 15,815 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $357,095 | 15,004 | Shares | Defined | 2020-05-08 | |
| No filing history on record for this holder in this stock. | ||||||