Historical shareholding details of Cascade Investment Group Inc holdings in Iron Mountain Inc. (IRM)

Monthly changes of Cascade Investment Group Inc shareholding in Iron Mountain Inc. over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Jun 30, 2025	Cascade Investment Group Inc	20,913	0.01%

Mar 31, 2025	Cascade Investment Group Inc	21,080	0.01%

Dec 31, 2024	Cascade Investment Group Inc	21,560	0.01%

Sep 30, 2024	Cascade Investment Group Inc	22,445	0.01%

Jun 30, 2024	Cascade Investment Group Inc	22,495	0.01%

Mar 31, 2024	Cascade Investment Group Inc	22,895	0.01%

Dec 31, 2023	Cascade Investment Group Inc	24,295	0.01%

Sep 30, 2023	Cascade Investment Group Inc	24,295	0.01%

Jun 30, 2023	Cascade Investment Group Inc	24,445	0.01%

Mar 31, 2023	Cascade Investment Group Inc	24,437	0.01%