Nomura Asset Management CO LTD Iron Mountain Inc Transaction History

Nomura Asset Management CO LTD

$37.3 Billion
Q3 2025

A detailed history of Nomura Asset Management CO LTD transactions in Iron Mountain Inc stock. As of the latest transaction made, Nomura Asset Management CO LTD holds 529,048 shares of IRM stock, worth $48.3 Million. This represents 0.14% of its overall portfolio holdings.

Number of Shares

529,048

Previous 517,718 2.19%

Holding current value

$48.3 Million

Previous $53.1 Million 1.56%

% of portfolio

0.14%

Previous 0.15%

44 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 12, 2025	BUY	$89.46 - $104.46 $1.01 Million - $1.18 Million	11,330 Added 2.19%	529,048 $53.9 Million
Q2 2025 Aug 11, 2025	BUY	$76.93 - $105.25 $1.51 Million - $2.06 Million	19,609 Added 3.94%	517,718 $53.1 Million
Q1 2025 May 12, 2025	BUY	$82.79 - $111.31 $1.95 Million - $2.62 Million	23,518 Added 4.96%	498,109 $42.9 Million
Q4 2024 Feb 12, 2025	BUY	$101.62 - $128.14 $1.86 Million - $2.34 Million	18,296 Added 4.01%	474,591 $49.9 Million
Q3 2024 Nov 15, 2024	BUY	$89.69 - $119.32 $629,892 - $837,984	7,023 Added 1.56%	456,295 $54.2 Million

Q2 2024 Aug 14, 2024	BUY	$74.42 - $89.62 $1.82 Million - $2.19 Million	24,490 Added 5.77%	449,272 $40.3 Million
Q1 2024 May 13, 2024	BUY	$65.34 - $81.37 $778,264 - $969,198	11,911 Added 2.88%	424,782 $34.1 Million
Q4 2023 Feb 09, 2024	BUY	$57.23 - $70.6 $412,628 - $509,025	7,210 Added 1.78%	412,871 $28.9 Million
Q3 2023 Nov 03, 2023	BUY	$57.27 - $64.02 $209,436 - $234,121	3,657 Added 0.91%	405,661 $24.1 Million
Q2 2023 Aug 14, 2023	BUY	$51.58 - $57.16 $474,536 - $525,872	9,200 Added 2.34%	402,004 $22.8 Million
Q1 2023 Jan 10, 2025	BUY	$48.96 - $56.63 $236,036 - $273,013	4,821 Added 1.24%	392,804 $20.8 Million
Q1 2023 May 11, 2023	BUY	$48.96 - $56.63 $236,036 - $273,013	4,821 Added 1.24%	392,804 $20.8 Million
Q4 2022 Jan 10, 2025	BUY	$44.14 - $55.56 $1.11 Million - $1.39 Million	25,074 Added 6.91%	387,983 $19.3 Million
Q4 2022 Feb 14, 2023	BUY	$44.14 - $55.56 $1.11 Million - $1.39 Million	25,074 Added 6.91%	387,983 $19.3 Million
Q3 2022 Jan 10, 2025	BUY	$43.59 - $56.54 $808,550 - $1.05 Million	18,549 Added 5.39%	362,909 $16 Million
Q3 2022 Nov 10, 2022	BUY	$43.59 - $56.54 $808,550 - $1.05 Million	18,549 Added 5.39%	362,909 $16 Million
Q2 2022 Jan 10, 2025	BUY	$46.11 - $57.72 $439,704 - $550,417	9,536 Added 2.85%	344,360 $16.8 Million
Q2 2022 Aug 12, 2022	BUY	$46.11 - $57.72 $439,704 - $550,417	9,536 Added 2.85%	344,360 $16.8 Million
Q1 2022 Jan 10, 2025	SELL	$42.24 - $55.46 $5.13 Million - $6.74 Million	-121,471 Reduced 26.62%	334,824 $18.6 Million
Q1 2022 May 13, 2022	SELL	$42.24 - $55.46 $449,011 - $589,539	-10,630 Reduced 3.08%	334,824 $18.6 Million
Q4 2021 Jan 10, 2025	BUY	$42.63 - $52.77 $913,901 - $1.13 Million	21,438 Added 6.62%	345,454 $18.1 Million
Q4 2021 Feb 01, 2022	BUY	$42.63 - $52.77 $913,901 - $1.13 Million	21,438 Added 6.62%	345,454 $18.1 Million
Q3 2021 Jan 10, 2025	SELL	$42.42 - $49.45 $1.22 Million - $1.42 Million	-28,761 Reduced 8.15%	324,016 $14.1 Million
Q3 2021 Nov 12, 2021	SELL	$42.42 - $49.45 $1.22 Million - $1.42 Million	-28,761 Reduced 8.15%	324,016 $14.1 Million
Q2 2021 Jan 10, 2025	SELL	$37.3 - $47.02 $115,406 - $145,479	-3,094 Reduced 0.87%	352,777 $14.9 Million
Q2 2021 Aug 06, 2021	SELL	$37.3 - $47.02 $115,406 - $145,479	-3,094 Reduced 0.87%	352,777 $14.9 Million
Q1 2021 Jan 10, 2025	SELL	$28.0 - $37.28 $2.81 Million - $3.74 Million	-100,424 Reduced 22.01%	355,871 $13.2 Million
Q1 2021 May 14, 2021	BUY	$28.0 - $37.28 $1.6 Million - $2.13 Million	57,206 Added 19.15%	355,871 $13.2 Million
Q4 2020 Jan 10, 2025	SELL	$25.49 - $30.38 $4.02 Million - $4.79 Million	-157,630 Reduced 34.55%	298,665 $8.8 Million
Q4 2020 Feb 12, 2021	BUY	$25.49 - $30.38 $243,353 - $290,037	9,547 Added 3.3%	298,665 $8.8 Million
Q3 2020 Nov 12, 2020	BUY	$26.04 - $30.5 $581,343 - $680,912	22,325 Added 8.37%	289,118 $7.75 Million
Q2 2020 Aug 13, 2020	BUY	$21.52 - $30.56 $134,715 - $191,305	6,260 Added 2.4%	266,793 $6.96 Million
Q1 2020 May 14, 2020	BUY	$22.4 - $34.45 $119,974 - $184,514	5,356 Added 2.1%	260,533 $6.2 Million
Q4 2019 Feb 13, 2020	BUY	$31.39 - $34.37 $511,029 - $559,543	16,280 Added 6.81%	255,177 $8.13 Million
Q3 2019 Nov 13, 2019	BUY	$29.41 - $34.14 $124,786 - $144,856	4,243 Added 1.81%	238,897 $7.74 Million
Q2 2019 Aug 13, 2019	SELL	$30.46 - $36.57 $68,961 - $82,794	-2,264 Reduced 0.96%	234,654 $7.34 Million
Q1 2019 May 10, 2019	SELL	$32.1 - $37.2 $55,565 - $64,393	-1,731 Reduced 0.73%	236,918 $8.4 Million
Q4 2018 Feb 12, 2019	BUY	$30.48 - $35.02 $151,180 - $173,699	4,960 Added 2.12%	238,649 $7.74 Million
Q3 2018 Nov 07, 2018	BUY	$34.09 - $36.74 $393,398 - $423,979	11,540 Added 5.19%	233,689 $8.07 Million
Q2 2018 Aug 03, 2018	SELL	$32.05 - $35.01 $73,843 - $80,663	-2,304 Reduced 1.03%	222,149 $7.78 Million
Q1 2018 May 14, 2018	BUY	$30.89 - $37.61 $435,270 - $529,962	14,091 Added 6.7%	224,453 $7.38 Million
Q4 2017 Feb 14, 2018	BUY	$37.15 - $41.44 $348,132 - $388,334	9,371 Added 4.66%	210,362 $7.94 Million
Q3 2017 Nov 13, 2017	BUY	$36.43 - $40.38 $294,755 - $326,714	8,091 Added 4.19%	200,991 $7.82 Million
Q2 2017 Aug 14, 2017	BUY	N/A	192,900	192,900 $6.63 Million

Others Institutions Holding IRM

# of Institutions

1,149

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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Nomura Asset Management CO LTD Iron Mountain Inc Transaction History