Cohen & Steers, Inc. Iron Mountain Inc Transaction History

Cohen & Steers, Inc.

$54.5 Billion
Q2 2025

A detailed history of Cohen & Steers, Inc. transactions in Iron Mountain Inc stock. As of the latest transaction made, Cohen & Steers, Inc. holds 13,768,631 shares of IRM stock, worth $1.33 Billion. This represents 2.59% of its overall portfolio holdings.

Number of Shares

13,768,631

Previous 13,481,902 2.13%

Holding current value

$1.33 Billion

Previous $1.16 Billion 21.75%

% of portfolio

2.59%

Previous 2.14%

28 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 14, 2025	BUY	$76.93 - $105.25 $22.1 Million - $30.2 Million	286,729 Added 2.13%	13,768,631 $1.41 Billion
Q1 2025 May 15, 2025	SELL	$82.79 - $111.31 $118 Million - $159 Million	-1,425,944 Reduced 9.57%	13,481,902 $1.16 Billion
Q4 2024 Feb 13, 2025	SELL	$101.62 - $128.14 $286 Million - $361 Million	-2,818,166 Reduced 15.9%	14,907,846 $1.57 Billion
Q3 2024 Nov 14, 2024	SELL	$89.69 - $119.32 $478 Million - $635 Million	-5,325,004 Reduced 23.1%	17,726,012 $2.11 Billion
Q2 2024 Aug 13, 2024	SELL	$74.42 - $89.62 $45 Million - $54.1 Million	-604,022 Reduced 2.55%	23,051,016 $2.07 Billion
Q1 2024 May 15, 2024	BUY	$65.34 - $81.37 $77.1 Million - $96 Million	1,179,424 Added 5.25%	23,655,038 $1.9 Billion
Q4 2023 Feb 14, 2024	BUY	$57.23 - $70.6 $861 Million - $1.06 Billion	15,035,937 Added 202.1%	22,475,614 $1.57 Billion
Q3 2023 Nov 14, 2023	SELL	$57.27 - $64.02 $16.4 Million - $18.3 Million	-286,090 Reduced 3.7%	7,439,677 $442 Million
Q2 2023 Aug 14, 2023	BUY	$51.58 - $57.16 $247 Million - $274 Million	4,798,010 Added 163.88%	7,725,767 $439 Million
Q1 2023 May 15, 2023	BUY	$48.96 - $56.63 $143 Million - $166 Million	2,927,651 Added 2761935.0%	2,927,757 $155 Million
Q4 2022 Feb 14, 2023	SELL	$44.14 - $55.56 $30.6 Million - $38.5 Million	-693,554 Reduced 99.98%	106 $5,000
Q3 2022 Nov 14, 2022	BUY	$43.59 - $56.54 $30.2 Million - $39.2 Million	693,499 Added 430744.72%	693,660 $30.5 Million
Q2 2022 Aug 15, 2022	SELL	$46.11 - $57.72 $211,460 - $264,703	-4,586 Reduced 96.61%	161 $8,000
Q1 2022 May 16, 2022	SELL	$42.24 - $55.46 $67,457 - $88,569	-1,597 Reduced 25.17%	4,747 $263,000
Q4 2021 Feb 14, 2022	BUY	$42.63 - $52.77 $270,444 - $334,772	6,344 New	6,344 $332,000
Q3 2021 Nov 15, 2021	SELL	$42.42 - $49.45 $608,642 - $709,508	-14,348 Closed	0 $0
Q2 2021 Aug 16, 2021	BUY	$37.3 - $47.02 $18,277 - $23,039	490 Added 3.54%	14,348 $607,000
Q1 2021 May 17, 2021	SELL	$28.0 - $37.28 $15.9 Million - $21.1 Million	-566,223 Reduced 97.61%	13,858 $513,000
Q4 2020 Feb 16, 2021	BUY	$25.49 - $30.38 $1.11 Million - $1.33 Million	43,661 Added 8.14%	580,081 $17.1 Million
Q3 2020 Nov 16, 2020	SELL	$26.04 - $30.5 $72.1 Million - $84.5 Million	-2,769,845 Reduced 83.78%	536,420 $14.4 Million
Q2 2020 Aug 14, 2020	BUY	$21.52 - $30.56 $71.2 Million - $101 Million	3,306,265 New	3,306,265 $86.3 Million
Q3 2019 Nov 14, 2019	SELL	$29.41 - $34.14 $192 Million - $223 Million	-6,518,367 Closed	0 $0
Q2 2019 Aug 14, 2019	SELL	$30.46 - $36.57 $71.7 Million - $86 Million	-2,352,730 Reduced 26.52%	6,518,367 $204 Million
Q1 2019 May 15, 2019	SELL	$32.1 - $37.2 $67.4 Million - $78.1 Million	-2,099,676 Reduced 19.14%	8,871,097 $315 Million
Q4 2018 Feb 14, 2019	BUY	$30.48 - $35.02 $136 Million - $156 Million	4,456,942 Added 68.42%	10,970,773 $356 Million
Q3 2018 Nov 14, 2018	BUY	$34.09 - $36.74 $26.4 Million - $28.5 Million	775,629 Added 13.52%	6,513,831 $225 Million
Q2 2018 Aug 14, 2018	BUY	$32.05 - $35.01 $121 Million - $132 Million	3,773,693 Added 192.09%	5,738,202 $201 Million
Q1 2018 May 14, 2018	BUY	$30.89 - $37.61 $60.7 Million - $73.9 Million	1,964,509 New	1,964,509 $64.6 Million

Others Institutions Holding IRM

# of Institutions

1,176

Shares Held

245M

Call Options Held

1.41M

Put Options Held

1.5M

View Full List

About IRON MOUNTAIN INC

Ticker IRM
Exchange NYSE
Sector Real Estate
Industry REIT—Specialty
Shares Outstandng 290,684,992
Market Cap $28.1B
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...

More about IRM

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