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TUDOR INVESTMENT CORP ET AL

Position in IRM — Iron Mountain Inc

CIK 923093 STAMFORD, CT

Position in IRM

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$3,800,425
+$1,959,765 QoQ
Shares Held
37,208
+67.7% QoQ
Ownership
0.013%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2020
21 quarters on record
Voting authority Sole 50.ToString("F0")% Shared 50.ToString("F0")% None 0.ToString("F0")%

Common Shares in IRM Over Time

Shares Held

Position Value (USD)

Derivatives in IRM

reported options exposure · as of Mar 31, 2026
CallValue
$490,272
CallShares
4,800
PutValue
$2,349,220
PutShares
23,000

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 Mar 31, 2026

TUDOR INVESTMENT CORP ET AL holds $84,451,196 across 8 REIT - Specialty names. IRM ranks #7 (4.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 IRM
Iron Mountain Inc
This page
37,208 $3,800,425

All Filings in IRM

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41 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $3,800,425 37,208
2026-03-31 $2,349,220 23,000
2026-03-31 $490,272 4,800
2025-12-31 $1,840,660 22,190
2025-12-31 $3,351,180 40,400
2025-12-31 $1,758,540 21,200
2025-09-30 $1,590,264 15,600
2025-09-30 $611,640 6,000
2025-06-30 $2,123,199 20,700
2025-06-30 $2,988,992 29,141
2025-06-30 $1,497,522 14,600
2025-03-31 $4,405,248 51,200
2025-03-31 $4,311,378 50,109
2025-03-31 $1,247,580 14,500
2024-12-31 $7,462,810 71,000
2024-12-31 $12,686,777 120,700
2024-09-30 $22,803,477 191,900
2024-09-30 $11,883,000 100,000
2024-09-30 $9,637,113 81,100
2024-06-30 $2,150,880 24,000
2024-06-30 $1,138,174 12,700
2024-03-31 $288,756 3,600
2024-03-31 $593,554 7,400
2023-12-31 $272,922 3,900
2023-09-30 $790,685 13,300
2023-09-30 $1,081,990 18,200
2023-06-30 $227,734 4,008
2023-06-30 $1,147,764 20,200
2023-06-30 $869,346 15,300
2022-12-31 $570,383 11,442
2022-09-30 $490,837 11,163
2022-06-30 $764,433 15,700
2022-06-30 $262,926 5,400
2022-03-31 $404,493 7,300
2021-09-30 $603,955 13,900
2021-09-30 $5,913,545 136,100
2021-09-30 $291,115 6,700
2021-06-30 $1,508,961 35,656
2020-12-31 $6,075,975 206,105
2020-09-30 $4,351,258 162,421
2020-06-30 $711,329 27,254