Sumitomo Mitsui Trust Holdings, Inc. Iron Mountain Inc Transaction History

Sumitomo Mitsui Trust Holdings, Inc.

$168 Billion
Q3 2025

A detailed history of Sumitomo Mitsui Trust Holdings, Inc. transactions in Iron Mountain Inc stock. As of the latest transaction made, Sumitomo Mitsui Trust Holdings, Inc. holds 934,752 shares of IRM stock, worth $85.4 Million. This represents 0.06% of its overall portfolio holdings.

Number of Shares

934,752

Previous 924,414 1.12%

Holding current value

$85.4 Million

Previous $94.8 Million 0.5%

% of portfolio

0.06%

Previous 0.06%

34 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Oct 27, 2025	BUY	$89.46 - $104.46 $924,837 - $1.08 Million	10,338 Added 1.12%	934,752 $95.3 Million
Q2 2025 Jul 31, 2025	SELL	$76.93 - $105.25 $9.44 Million - $12.9 Million	-122,702 Reduced 11.72%	924,414 $94.8 Million
Q1 2025 Apr 25, 2025	BUY	$82.79 - $111.31 $11.3 Million - $15.2 Million	136,393 Added 14.98%	1,047,116 $90.1 Million
Q4 2024 Jan 28, 2025	BUY	$101.62 - $128.14 $1.03 Million - $1.3 Million	10,160 Added 1.13%	910,723 $95.7 Million
Q3 2024 Nov 05, 2024	SELL	$89.69 - $119.32 $295,349 - $392,920	-3,293 Reduced 0.36%	900,563 $107 Million

Q2 2024 Jul 19, 2024	SELL	$74.42 - $89.62 $3.89 Million - $4.69 Million	-52,333 Reduced 5.47%	903,856 $81 Million
Q1 2024 Apr 19, 2024	SELL	$65.34 - $81.37 $468,487 - $583,422	-7,170 Reduced 0.74%	956,189 $76.7 Million
Q4 2023 Jan 30, 2024	BUY	$57.23 - $70.6 $724,302 - $893,513	12,656 Added 1.33%	963,359 $67.4 Million
Q3 2023 Oct 30, 2023	SELL	$57.27 - $64.02 $722,346 - $807,484	-12,613 Reduced 1.31%	950,703 $56.5 Million
Q2 2023 Jul 31, 2023	SELL	$51.58 - $57.16 $5.21 Million - $5.78 Million	-101,077 Reduced 9.5%	963,316 $54.7 Million
Q1 2023 Apr 27, 2023	SELL	$48.96 - $56.63 $19.4 Million - $22.4 Million	-395,926 Reduced 27.11%	1,064,393 $56.3 Million
Q4 2022 Jan 30, 2023	SELL	$44.14 - $55.56 $11.2 Million - $14.1 Million	-253,884 Reduced 14.81%	1,460,319 $72.8 Million
Q3 2022 Oct 21, 2022	SELL	$43.59 - $56.54 $4.54 Million - $5.89 Million	-104,253 Reduced 5.73%	1,714,203 $75.4 Million
Q2 2022 Jul 26, 2022	BUY	$46.11 - $57.72 $20.7 Million - $26 Million	449,724 Added 32.86%	1,818,456 $88.5 Million
Q1 2022 Apr 27, 2022	BUY	$42.24 - $55.46 $1.13 Million - $1.48 Million	26,641 Added 1.99%	1,368,732 $75.8 Million
Q4 2021 Feb 02, 2022	BUY	$42.63 - $52.77 $8.06 Million - $9.97 Million	188,979 Added 16.39%	1,342,091 $70.2 Million
Q3 2021 Oct 25, 2021	SELL	$42.42 - $49.45 $2.04 Million - $2.37 Million	-47,993 Reduced 4.0%	1,153,112 $50.1 Million
Q2 2021 Aug 02, 2021	SELL	$37.3 - $47.02 $3.98 Million - $5.02 Million	-106,739 Reduced 8.16%	1,201,105 $50.8 Million
Q1 2021 Apr 30, 2021	SELL	$28.0 - $37.28 $1.69 Million - $2.25 Million	-60,232 Reduced 4.4%	1,307,844 $48.4 Million
Q4 2020 Feb 05, 2021	SELL	$25.49 - $30.38 $5.11 Million - $6.09 Million	-200,424 Reduced 12.78%	1,368,076 $40.3 Million
Q3 2020 Oct 30, 2020	SELL	$26.04 - $30.5 $3.03 Million - $3.55 Million	-116,295 Reduced 6.9%	1,568,500 $42 Million
Q2 2020 Jul 27, 2020	BUY	$21.52 - $30.56 $654,810 - $929,879	30,428 Added 1.84%	1,684,795 $44 Million
Q1 2020 Apr 27, 2020	BUY	$22.4 - $34.45 $3.23 Million - $4.98 Million	144,417 Added 9.56%	1,654,367 $39.4 Million
Q4 2019 Jan 31, 2020	BUY	$31.39 - $34.37 $5.95 Million - $6.51 Million	189,552 Added 14.36%	1,509,950 $48.1 Million
Q3 2019 Oct 31, 2019	BUY	$29.41 - $34.14 $2.12 Million - $2.46 Million	72,146 Added 5.78%	1,320,398 $42.8 Million
Q2 2019 Jul 29, 2019	BUY	$30.46 - $36.57 $4.22 Million - $5.06 Million	138,426 Added 12.47%	1,248,252 $39.1 Million
Q1 2019 May 08, 2019	SELL	$32.1 - $37.2 $3.31 Million - $3.84 Million	-103,190 Reduced 8.51%	1,109,826 $39.4 Million
Q4 2018 Feb 06, 2019	BUY	$30.48 - $35.02 $3.19 Million - $3.67 Million	104,791 Added 9.46%	1,213,016 $39.3 Million
Q3 2018 Nov 07, 2018	BUY	$34.09 - $36.74 $1.18 Million - $1.27 Million	34,538 Added 3.22%	1,108,225 $38.3 Million
Q2 2018 Aug 01, 2018	BUY	$32.05 - $35.01 $4.69 Million - $5.12 Million	146,247 Added 15.77%	1,073,687 $37.6 Million
Q1 2018 May 01, 2018	BUY	$30.89 - $37.61 $377,970 - $460,195	12,236 Added 1.34%	927,440 $30.5 Million
Q4 2017 Feb 06, 2018	BUY	$37.15 - $41.44 $1.24 Million - $1.38 Million	33,394 Added 3.79%	915,204 $34.5 Million
Q3 2017 Nov 07, 2017	BUY	$36.43 - $40.38 $280,073 - $310,441	7,688 Added 0.88%	881,810 $34.3 Million
Q2 2017 Aug 07, 2017	BUY	N/A	874,122	874,122 $30 Million

Others Institutions Holding IRM

# of Institutions

1,150

Shares Held

245M

Call Options Held

1.41M

Put Options Held

984K

View Full List

About IRON MOUNTAIN INC

Ticker IRM
Exchange NYSE
Sector Real Estate
Industry REIT—Specialty
Shares Outstandng 290,684,992
Market Cap $26.6B
Description
Iron Mountain Incorporated (NYSE: IRM), founded in 1951, is the global leader for storage and information management services. Trusted by more than 225,000 organizations around the world, and with a real estate network of more than 90 million square feet across approximately 1,450 facilities in approximately 50 countries, Iron Mountain stores an...

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Sumitomo Mitsui Trust Holdings, Inc. Iron Mountain Inc Transaction History