Sumitomo Mitsui Trust Group, Inc.

Position in IRM — Iron Mountain Inc

CIK 1475365 CHIYODA-KU, TOKYO, M0

Back to IRM Full portfolio

Position in IRM

as of Jun 30, 2026 · filed Jul 30, 2026 Compact

Position Value

$113,244,493

+$17,874,128 QoQ

Shares Held

896,560

-4.0% QoQ

Ownership

0.301%

of shares outstanding

% of Portfolio

0.07%

of 13F equity value

Holder Rank

#41

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)

Position in REIT - Specialty

Real Estate · as of Jun 30, 2026

Sumitomo Mitsui Trust Group, Inc. holds $1,309,806,791 across 14 REIT - Specialty names. IRM ranks #4 (8.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	EQIX	Equinix Inc	524,377	$546,605,341
2	AMT	American Tower Corp /Ma/	1,162,978	$190,228,311
3	DLR	Digital Realty Trust, Inc.	975,829	$175,239,371
4	IRM	Iron Mountain Inc This page	896,560	$113,244,493
5	GLPI	Gaming & Leisure Properties, Inc.	1,986,066	$88,439,518
6	CCI	Crown Castle Inc.	804,222	$60,903,732
7	OUT	OUTFRONT Media Inc.	1,496,593	$49,028,386
8	SBAC	Sba Communications Corp	191,959	$33,873,085

All Filings in IRM

Export CSV

26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$113,244,493	896,560	-4.0%	Shares	Defined	2026-07-30
2026-03-31	$95,370,365	933,722	+3.0%	Shares	Defined	2026-04-30
2025-12-31	$75,226,359	906,888	-3.0%	Shares	Defined	2026-01-23
2025-09-30	$95,288,618	934,752	+1.1%	Shares	Defined	2025-10-27
2025-06-30	$94,817,143	924,414	-11.7%	Shares	Defined	2025-07-31
2025-03-31	$90,093,860	1,047,116	+15.0%	Shares	Defined	2025-04-25
2024-12-31	$95,726,094	910,723	+1.1%	Shares	Defined	2025-01-28
2024-09-30	$107,013,901	900,563	-0.4%	Shares	Defined	2024-11-05
2024-06-30	$81,003,574	903,856	-5.5%	Shares	Defined	2024-07-19
2024-03-31	$76,695,919	956,189	-0.7%	Shares	Defined	2024-04-19
2023-12-31	$67,415,862	963,359	+1.3%	Shares	Defined	2024-01-30
2023-09-30	$56,519,293	950,703	-1.3%	Shares	Defined	2023-10-30
2023-06-30	$54,735,615	963,316	-9.5%	Shares	Defined	2023-07-31
2023-03-31	$56,317,033	1,064,393	-27.1%	Shares	Defined	2023-04-27
2022-12-31	$72,796,902	1,460,319	-14.8%	Shares	Defined	2023-01-30
2022-09-30	$75,373,505	1,714,203	-5.7%	Shares	Defined	2022-10-21
2022-06-30	$88,540,622	1,818,456	+32.9%	Shares	Defined	2022-07-26
2022-03-31	$75,841,440	1,368,732	+2.0%	Shares	Defined	2022-04-27
2021-12-31	$70,231,622	1,342,091	+16.4%	Shares	Defined	2022-02-02
2021-09-30	$50,102,716	1,153,112	-4.0%	Shares	Defined	2021-10-25
2021-06-30	$50,830,763	1,201,105	-8.2%	Shares	Defined	2021-08-02
2021-03-31	$48,403,306	1,307,844	-4.4%	Shares	Defined	2021-04-30
2020-12-31	$40,330,880	1,368,076	-12.8%	Shares	Defined	2021-02-05
2020-09-30	$42,020,115	1,568,500	-6.9%	Shares	Defined	2020-10-30
2020-06-30	$43,973,149	1,684,795	+1.8%	Shares	Defined	2020-07-27
2020-03-31	$39,373,934	1,654,367	—	Shares	Defined	2020-04-27
No filing history on record for this holder in this stock.