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Iron Mountain shares owned by TCW Group

Quarter-by-quarter ownership of Iron Mountain (IRM) shares owned by TCW Group from 13F filings

Historical chart of TCW Group investment in Iron Mountain

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All positions including Iron Mountain held by TCW Group consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Iron Mountain by TCW Group

Quarter filed Position value Share count Share price at filing
2025-09-30 $8.3M 81k 101.94
2022-06-30 $17M 343k 48.69
2022-03-31 $13M 235k 55.41
2021-12-31 $13M 244k 52.33
2021-09-30 $10M 231k 43.41
2021-06-30 $13M 296k 42.32
2021-03-31 $9.1M 246k 37.00
2020-12-31 $836k 29k 29.28
2020-09-30 $546k 20k 26.79
2016-12-31 $586k 18k 32.47
2016-09-30 $679k 18k 37.51
2016-06-30 $699k 18k 39.83
2016-03-31 $456k 14k 33.90
2015-12-31 $359k 13k 26.99
2015-09-30 $408k 13k 31.03
2015-06-30 $398k 13k 30.98
2015-03-31 $1.9M 53k 36.48