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ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Position in IRM — Iron Mountain Inc

CIK 1164508 BOSTON, MA

Position in IRM

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$217,505
-$31,642 QoQ
Shares Held
1,722
-81.5% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#893
of 1,152 holders
Holding Since
Mar 2020
4 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in IRM Over Time

Shares Held

Position Value (USD)

Position in REIT - Specialty

Real Estate · as of Jun 30, 2026

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $2,157,244,454 across 10 REIT - Specialty names. IRM ranks #10 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in IRM

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4 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $217,505 1,722
2020-09-30 $249,147 9,300
2020-06-30 $1,877,764 71,945
2020-03-31 $2,903,600 122,000