Iron Mountain Inc

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS IRM

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/10/2026

Shares

164,711

Value ($000)

13,663

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	2/10/2026	13,663	0.1%	164,711	12/31/2025
2025 Q3	11/12/2025	17,042	0.1%	167,173	9/30/2025
2025 Q2	8/8/2025	17,171	0.1%	167,412	6/30/2025
2025 Q1	5/13/2025	13,929	0.1%	161,894	3/31/2025
2024 Q4	2/11/2025	16,515	0.1%	157,117	12/31/2024
2024 Q3	11/7/2024	13,641	0.1%	114,791	9/30/2024
2024 Q2	8/12/2024	10,389	0.1%	115,922	6/30/2024
2024 Q1	5/8/2024	5,141	0.0%	64,100	3/31/2024
2023 Q4	2/9/2024	4,475	0.0%	63,942	12/31/2023
2023 Q3	11/9/2023	3,489	0.0%	58,682	9/30/2023
2023 Q2	8/9/2023	2,890	0.0%	50,860	6/30/2023
2023 Q1	5/9/2023	2,608	0.0%	49,283	3/31/2023
2022 Q4	2/13/2023	2,450	0.0%	49,141	12/31/2022
2022 Q3	11/14/2022	1,870	0.0%	42,518	9/30/2022
2022 Q2	8/15/2022	2,060	0.0%	42,306	6/30/2022
2022 Q1	5/12/2022	2,147	0.0%	38,743	3/31/2022
2021 Q4	2/11/2022	1,902	0.0%	36,344	12/31/2021
2021 Q3	11/10/2021	1,576	0.0%	36,274	9/30/2021
2021 Q2	8/12/2021	1,531	0.0%	36,175	6/30/2021
2021 Q1	5/12/2021	1,335	0.0%	36,072	3/31/2021
2020 Q4	2/12/2021	1,061	0.0%	36,007	12/31/2020
2020 Q3	11/12/2020	715	0.0%	26,698	9/30/2020
2020 Q2	8/11/2020	430	0.0%	16,461	6/30/2020
2020 Q1	5/14/2020	437	0.0%	18,345	3/31/2020
2019 Q4	2/11/2020	589	0.0%	18,491	12/31/2019