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FMR LLC

Position in IRM — Iron Mountain Inc

CIK 315066 BOSTON, MA

Position in IRM

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$994,358,420
+$229,902,011 QoQ
Shares Held
7,872,365
+5.2% QoQ
Ownership
2.64%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#7
of 1,152 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 89% Shared 0% None 11%

Common Shares in IRM Over Time

Shares Held

Position Value (USD)

Position in REIT - Specialty

Real Estate · as of Jun 30, 2026

FMR LLC holds $8,173,104,362 across 17 REIT - Specialty names. IRM ranks #3 (12.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 IRM
Iron Mountain Inc
This page
7,872,365 $994,358,420

All Filings in IRM

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $994,358,420 7,872,365
2026-03-31 $764,456,409 7,484,398
2025-12-31 $662,298,014 7,984,304
2025-09-30 $801,053,897 7,858,092
2025-06-30 $686,954,264 6,697,419
2025-03-31 $454,870,677 5,286,735
2024-12-31 $70,186,044 667,739
2024-09-30 $72,610,950 611,049
2024-06-30 $295,120,450 3,293,020
2024-03-31 $238,097,127 2,968,422
2023-12-31 $246,531,490 3,522,885
2023-09-30 $200,973,102 3,380,540
2023-06-30 $212,059,909 3,732,135
2023-03-31 $201,717,310 3,812,461
2022-12-31 $186,150,117 3,734,205
2022-09-30 $165,872,117 3,772,393
2022-06-30 $193,249,927 3,968,986
2022-03-31 $221,494,934 3,997,382
2021-12-31 $208,322,745 3,980,943
2021-09-30 $180,600,010 4,156,502
2021-06-30 $176,637,669 4,173,858
2021-03-31 $192,767,545 5,208,526
2020-12-31 $222,168,530 7,536,246
2020-09-30 $196,304,019 7,327,511
2020-06-30 $110,401,302 4,229,935
2020-03-31 $134,350 5,645