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WELLINGTON MANAGEMENT GROUP LLP

Position in IRM — Iron Mountain Inc

CIK 902219 Boston, MA

Position in IRM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$64,785,152
+$29,249,115 QoQ
Shares Held
512,906
+47.4% QoQ
Ownership
0.172%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#68
of 1,152 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 0% Shared 97% None 3%

Common Shares in IRM Over Time

Shares Held

Position Value (USD)

Position in REIT - Specialty

Real Estate · as of Jun 30, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $4,618,306,472 across 12 REIT - Specialty names. IRM ranks #9 (1.4% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in IRM

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $64,785,152 512,906
2026-03-31 $35,536,037 347,915
2025-12-31 $8,637,333 104,127
2025-09-30 $25,372,049 248,892
2025-06-30 $153,231,680 1,493,923
2025-03-31 $91,835,996 1,067,364
2024-12-31 $162,679,586 1,547,708
2024-09-30 $284,434,811 2,393,628
2024-06-30 $302,877,686 3,379,577
2024-03-31 $212,432,490 2,648,454
2023-12-31 $204,945,524 2,928,630
2023-09-30 $179,078,854 3,012,260
2023-06-30 $41,225,691 725,549
2023-03-31 $35,386,417 668,804
2022-12-31 $41,506,205 832,622
2022-09-30 $29,139,620 662,716
2022-06-30 $1,084,909 22,282
2022-03-31 $340,660 6,148
2021-12-31 $297,547 5,686
2021-09-30 $243,449 5,603
2021-06-30 $760,235 17,964
2021-03-31 $927,025 25,048
2020-12-31 $1,103,141 37,420
2020-09-30 $315,424 11,774
2020-06-30 $307,849 11,795
2020-03-31 $278,459 11,700