Iron Mountain Inc

Sumitomo Mitsui DS Asset Management Company, Ltd IRM

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/3/2026

Shares

102,616

Value ($000)

8,512

Weight

0.1%

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	2/3/2026	8,512	0.1%	102,616	12/31/2025
2025 Q3	10/24/2025	10,233	0.1%	100,378	9/30/2025
2025 Q2	7/10/2025	9,951	0.1%	97,014	6/30/2025
2025 Q1	4/28/2025	8,171	0.1%	94,965	3/31/2025
2024 Q4	1/28/2025	9,730	0.1%	92,570	12/31/2024
2024 Q3	10/17/2024	10,059	0.1%	84,654	9/30/2024
2024 Q2	7/30/2024	7,230	0.1%	80,674	6/30/2024
2024 Q1	5/2/2024	6,224	0.1%	77,595	3/31/2024
2023 Q4	2/1/2024	5,378	0.1%	76,851	12/31/2023
2023 Q3	10/30/2023	4,363	0.1%	73,395	9/30/2023
2023 Q2	8/4/2023	3,944	0.1%	69,417	6/30/2023
2023 Q1	5/2/2023	3,563	0.1%	67,332	3/31/2023
2022 Q4	1/26/2023	3,164	0.1%	63,476	12/31/2022
2022 Q3	10/19/2022	2,705	0.1%	61,523	9/30/2022
2022 Q2	7/13/2022	2,641	0.1%	54,247	6/30/2022
2022 Q1	4/19/2022	2,784	0.1%	50,252	3/31/2022
2021 Q4	1/20/2022	2,407	0.1%	46,007	12/31/2021
2021 Q3	10/15/2021	1,885	0.0%	43,386	9/30/2021
2021 Q2	7/19/2021	1,775	0.0%	41,960	6/30/2021
2021 Q1	5/7/2021	1,437	0.0%	38,835	3/31/2021
2020 Q4	2/2/2021	1,070	0.0%	36,314	12/31/2020
2020 Q3	10/29/2020	997	0.0%	37,235	9/30/2020
2020 Q2	8/12/2020	915	0.0%	35,082	6/30/2020
2020 Q1	4/21/2020	764	0.0%	32,124	3/31/2020
2019 Q4	1/24/2020	1,051	0.0%	32,987	12/31/2019