Iron Mountain Inc

NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC IRM

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/5/2026

Shares

9,445

Value ($000)

783

Weight

0.0%

2019 Q4 - 2025 Q4 (25 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/5/2026	783	0.0%	9,445	12/31/2025
2025 Q3	11/7/2025	960	0.0%	9,414	9/30/2025
2025 Q2	8/12/2025	965	0.0%	9,413	6/30/2025
2025 Q1	5/14/2025	804	0.0%	9,343	3/31/2025
2024 Q4	2/11/2025	979	0.0%	9,318	12/31/2024
2024 Q3	11/13/2024	1,105	0.0%	9,297	9/30/2024
2024 Q2	8/15/2024	836	0.0%	9,328	6/30/2024
2024 Q1	5/15/2024	743	0.0%	9,264	3/31/2024
2023 Q4	2/13/2024	647	0.0%	9,243	12/31/2023
2023 Q3	11/14/2023	548	0.0%	9,212	9/30/2023
2023 Q2	8/14/2023	523	0.0%	9,199	6/30/2023
2023 Q1	5/15/2023	484	0.0%	9,139	3/31/2023
2022 Q4	2/21/2023	454	0.0%	9,111	12/31/2022
2022 Q3	11/14/2022	475	0.0%	10,796	9/30/2022
2022 Q2	8/4/2022	565	0.0%	11,613	6/30/2022
2022 Q1	5/9/2022	638	0.0%	11,518	3/31/2022
2021 Q4	2/3/2022	682	0.0%	13,027	12/31/2021
2021 Q3	11/15/2021	571	0.0%	13,147	9/30/2021
2021 Q2	8/13/2021	555	0.0%	13,112	6/30/2021
2021 Q1	5/14/2021	484	0.0%	13,075	3/31/2021
2020 Q4	2/12/2021	466	0.0%	15,814	12/31/2020
2020 Q3	11/13/2020	413	0.0%	15,815	9/30/2020
2020 Q2	8/14/2020	413	0.0%	15,815	6/30/2020
2020 Q1	5/8/2020	357	0.0%	15,004	3/31/2020
2019 Q4	2/7/2020	355	0.0%	11,154	12/31/2019