PORTSMOUTH, N.H.--(BUSINESS WIRE)--January 23, 2026-- 

Iron Mountain Incorporated $(IRM)$, a global leader in information management services, today announced the tax treatment for all 2025 distributions on its common stock.

 
                           Form 1099      Form 1099      Form 1099      Form 1099      Form 1099      Form 1099      Form 1099 
                             Box 1a         Box 1b         Box 2a         Box 2b         Box 2f         Box 3          Box 5 
                         -------------  -------------  -------------  -------------  -------------  -------------  ------------- 
                           Ordinary       Qualified    Total Capital  Unrecaptured    Section 897 
Payment       Total         Taxable        Taxable          Gain        Sec. 1250       Capital       Return of    Section 199A 
  Date     Distribution     Dividend     Dividend (1)   Distribution     Gain (2)       Gain (2)       Capital      Dividend (1) 
          ($ per share)  ($ per share)  ($ per share)  ($ per share)  ($ per share)  ($ per share)  ($ per share)  ($ per share) 
--------  -------------  -------------  -------------  -------------  -------------  -------------  -------------  ------------- 
 Jan 7, 
  2025      $0.715000      $0.436917      $0.000003      $0.000000      $0.000000      $0.000000      $0.278083      $0.436914 
 Apr 4, 
  2025      $0.785000      $0.479692      $0.000003      $0.000000      $0.000000      $0.000000      $0.305308      $0.479689 
 Jul 3, 
  2025      $0.785000      $0.479692      $0.000003      $0.000000      $0.000000      $0.000000      $0.305308      $0.479689 
 Oct 3, 
  2025      $0.785000      $0.479692      $0.000003      $0.000000      $0.000000      $0.000000      $0.305308      $0.479689 
 Totals     $3.070000      $1.875993      $0.000012      $0.000000      $0.000000      $0.000000      $1.194007      $1.875981 
 
 
(1)    Qualified Taxable Dividend and Section 199A Dividend are subsets of, 
       and included in, Ordinary Taxable Dividend. 
(2)    Unrecaptured Section 1250 Gain and Section 897 Capital Gain are subsets 
       of, and included in, Total Capital Gain Distribution. 
 

If you held common stock of Iron Mountain in your name at any time during 2025, an IRS Form 1099-DIV will be provided to you by Computershare, Iron Mountain's transfer agent. If you held shares in "street name" during 2025, the IRS form provided by your bank, brokerage firm or nominee may report only the gross distributions paid to you. Therefore, you may need the information included in this press release to properly complete your federal tax return.

Please note that federal tax laws affect taxpayers differently, and we cannot advise you on how distributions should be reported on your federal income tax return. Please also note that state and local taxation of REIT distributions vary and may not be the same as the federal treatment.

About Iron Mountain

Iron Mountain Incorporated (NYSE: IRM) is trusted by more than 240,000 customers in 61 countries, including approximately 95% of the Fortune 1000, to help unlock value and intelligence from their assets through services that transcend the physical and digital worlds. Our broad range of solutions address their information management, digital transformation, information security, data center and asset lifecycle management needs. Our longstanding commitment to safety, security, sustainability and innovation in support of our customers underpins everything we do.

To learn more about Iron Mountain, please visit www.IronMountain.com.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260123101172/en/

 
    CONTACT:    Investor Relations: 

Mark Rupe

SVP, Investor Relations

Mark.Rupe@ironmountain.com

(215) 402-7013

Erika Crabtree

Manager, Investor Relations

Erika.Crabtree@ironmountain.com

(617) 535-2845

Media:

media@ironmountain.com

(END) Dow Jones Newswires

January 23, 2026 07:15 ET (12:15 GMT)