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ATALANTA SOSNOFF CAPITAL, LLC

Position in IRM — Iron Mountain Inc

CIK 700529 New York, NY

Position in IRM

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$568,521
+$50,467 QoQ
Shares Held
4,501
-11.3% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#631
of 1,151 holders
Holding Since
Jun 2021
21 quarters on record
Voting authority Sole 0% Shared 100% None 0%

Common Shares in IRM Over Time

Shares Held

Position Value (USD)

Position in REIT - Specialty

Real Estate · as of Jun 30, 2026

ATALANTA SOSNOFF CAPITAL, LLC holds $898,106 across 2 REIT - Specialty names. IRM ranks #1 (63.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 IRM
Iron Mountain Inc
This page
4,501 $568,521

All Filings in IRM

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21 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $568,521 4,501
2026-03-31 $518,054 5,072
2025-12-31 $420,141 5,065
2025-09-30 $532,636 5,225
2025-06-30 $547,108 5,334
2025-03-31 $493,955 5,741
2024-12-31 $524,498 4,990
2024-09-30 $551,965 4,645
2024-06-30 $416,284 4,645
2024-03-31 $390,061 4,863
2023-12-31 $376,772 5,384
2023-09-30 $343,918 5,785
2023-06-30 $337,567 5,941
2023-03-31 $314,338 5,941
2022-12-31 $310,465 6,228
2022-09-30 $273,845 6,228
2022-06-30 $300,563 6,173
2022-03-31 $351,077 6,336
2021-12-31 $8,595,987 164,265
2021-09-30 $7,120,412 163,876
2021-06-30 $6,858,802 162,070