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Equibles

JANE STREET GROUP, LLC

Position in IRM — Iron Mountain Inc

CIK 1595888 NEW YORK, NY
Back to IRM Full portfolio

Position in IRM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$50,087,092
-$22,170,931 QoQ
Shares Held
396,541
-43.9% QoQ
Ownership
0.133%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#77
of 1,152 holders
Holding Since
Mar 2020
26 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
$16,445,562
CallShares
130,200
PutValue
$6,732,323
PutShares
53,300

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

JANE STREET GROUP, LLC holds $703,368,989 across 12 REIT - Specialty names. IRM ranks #5 (7.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 AMT
American Tower Corp /Ma/
 1,524,990 $249,442,613
2 EQIX
Equinix Inc
 231,762 $241,586,390
3 CCI
Crown Castle Inc.
 811,263 $61,436,946
4 LAMR
Lamar Advertising Co/New
 333,887 $52,079,693
5 IRM
Iron Mountain Inc
This page 		396,541 $50,087,092
6 FRMI
Fermi Inc.
 2,143,467 $19,634,157
7 SBAC
Sba Communications Corp
 60,125 $10,609,657
8 EPR
Epr Properties
 164,865 $9,563,818

All Filings in IRM

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $50,087,092 396,541
2026-06-30 $16,445,562 130,200
2026-06-30 $6,732,323 53,300
2026-03-31 $72,258,023 707,441
2026-03-31 $5,198,926 50,900
2026-03-31 $6,925,092 67,800
2025-12-31 $3,732,750 45,000
2025-12-31 $2,488,500 30,000
2025-09-30 $3,690,228 36,200
2025-09-30 $3,761,586 36,900
2025-06-30 $5,077,215 49,500
2025-06-30 $2,389,881 23,300
2025-06-30 $15,371,549 149,864
2025-03-31 $3,467,412 40,300
2025-03-31 $4,282,554 49,774
2025-03-31 $9,799,956 113,900
2024-12-31 $1,376,941 13,100
2024-12-31 $8,156,536 77,600
2024-12-31 $2,098,626 19,966
2024-09-30 $5,630,640 47,384
2024-09-30 $14,188,302 119,400
2024-09-30 $7,082,268 59,600
2024-06-30 $40,161,858 448,135
2024-03-31 $15,999,728 199,473
2023-12-31 $3,369,397 48,148
2023-09-30 $13,327,382 224,178
2023-06-30 $3,686,652 64,883
2023-03-31 $279,523 5,283
2022-12-31 $580,602 11,647
2022-09-30 $4,123,374 93,777
2022-06-30 $1,310,783 26,921
2022-03-31 $4,355,226 78,600
2022-03-31 $5,673,762 102,396
2022-03-31 $10,721,835 193,500
2021-12-31 $6,075,513 116,100
2021-12-31 $2,982,810 57,000
2021-12-31 $4,163,950 79,571
2021-09-30 $4,345,000 100,000
2021-09-30 $2,698,245 62,100
2021-09-30 $1,341,779 30,881
2021-06-30 $2,014,220 47,595
2021-06-30 $3,381,368 79,900
2021-06-30 $6,589,224 155,700
2021-03-31 $16,617,934 449,012
2021-03-31 $5,011,154 135,400
2021-03-31 $11,014,176 297,600
2020-12-31 $1,883,772 63,900
2020-12-31 $1,698,048 57,600
2020-09-30 $2,403,063 89,700
2020-09-30 $707,068 26,393

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