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D. E. Shaw & Co., Inc.

Position in IRM — Iron Mountain Inc

CIK 1009207 New York, NY

Position in IRM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$13,871,743
+$13,871,743 QoQ
Shares Held
109,823
Ownership
0.037%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#174
of 1,152 holders
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in IRM Over Time

Shares Held

Position Value (USD)

Derivatives in IRM

reported options exposure · as of Jun 30, 2026
CallValue
$2,437,783
CallShares
19,300
PutValue
$2,437,783
PutShares
19,300

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in REIT - Specialty

Real Estate · as of Jun 30, 2026

D. E. Shaw & Co., Inc. holds $865,990,226 across 14 REIT - Specialty names. IRM ranks #7 (1.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 IRM
Iron Mountain Inc
This page
109,823 $13,871,743

All Filings in IRM

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $13,871,743 109,823
2026-06-30 $2,437,783 19,300
2026-06-30 $2,437,783 19,300
2026-03-31 $1,971,302 19,300
2026-03-31 $1,971,302 19,300
2025-12-31 $477,460 5,756
2025-12-31 $2,828,595 34,100
2025-12-31 $1,600,935 19,300
2025-09-30 $2,558,694 25,100
2025-09-30 $14,683,335 144,039
2025-06-30 $2,030,886 19,800
2025-06-30 $389,766 3,800
2025-06-30 $59,898,520 583,977
2025-03-31 $70,333,053 817,446
2025-03-31 $7,459,668 86,700
2025-03-31 $3,364,164 39,100
2024-12-31 $1,124,676 10,700
2024-12-31 $16,039,786 152,600
2024-12-31 $13,969,119 132,900
2024-09-30 $11,265,084 94,800
2024-09-30 $18,929,619 159,300
2024-06-30 $2,840,954 31,700
2024-06-30 $7,474,308 83,400
2024-06-30 $699,752 7,808
2024-03-31 $2,269,381 28,293
2024-03-31 $2,542,657 31,700
2024-03-31 $2,606,825 32,500
2023-12-31 $18,509,710 264,500
2023-12-31 $5,039,469 72,013
2023-12-31 $4,135,818 59,100
2023-09-30 $10,375,451 174,524
2023-09-30 $1,581,370 26,600
2023-09-30 $15,439,165 259,700
2023-06-30 $5,125,164 90,200
2023-06-30 $13,244,742 233,100
2023-06-30 $8,299,356 146,064
2023-03-31 $4,210,577 79,580
2023-03-31 $8,068,775 152,500
2022-12-31 $603,185 12,100
2022-12-31 $8,997,925 180,500
2022-12-31 $5,974,073 119,841
2022-09-30 $532,037 12,100
2022-09-30 $732,012 16,648
2022-09-30 $5,738,085 130,500
2022-06-30 $4,406,445 90,500
2022-06-30 $6,232,320 128,000
2022-03-31 $6,926,250 125,000
2022-03-31 $581,805 10,500
2021-12-31 $7,273,870 139,000
2021-12-31 $4,332,924 82,800