IRON MOUNTAIN INC (IRM)

Data as of Oct 8, 2026, from SEC Form 4 filings.

S&P 500XNYSREAL ESTATE INVESTMENT TRUSTSNet insider selling (90d)Watch IRM

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William L. Meaney - Officer
Open-market sale$1.46M
Oct 1, 2026
William L. Meaney - Officer
Open-market sale

About IRON MOUNTAIN INC (IRM)

Iron Mountain Inc is an information management services provider organized and operated as a real estate investment trust. The company offers solutions to its clients to address their information management, digital transformation, information security, data center, and asset lifecycle management (ALM) needs. Its customers come from various industries, including commercial, legal, financial, healthcare, technology, etc. The company has two reportable segments: Global Records and Information Management (Global RIM) and Global Data Center. Maximum revenue is generated from the Global RIM segment, which offers data and records management, secure shredding, consumer storage, and other related services. Geographically, the company generates maximum revenue from the United States.

Headquarters: PORTSMOUTH, NH
Employees: 29,400
Listed: 1996
Exchange: XNYS
Sector: Real Estate

https://www.ironmountain.com SEC filings for IRM on EDGAR

IRM Form 4 activity by transaction type, last 90 days

Form 4 transaction type	Transactions	Shares	Total value
Open-market sale	16	149,261	$17.39M
Grant or award	3	765.65
Option exercise	8	244,522

Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.

IRM insider transactions (Form 4)

114 Form 4 filings on record, the earliest from Oct 3, 2024, newest first. Filing history page 1 of 3.

Date	Insider	Transaction	Security	Shares	Price	Value
Oct 6, 2026	Theodore R. Samuels II - Director	Grant or award	Phantom Stock	310.49^{footnote F2}	$116.75	$36K
Footnote F2 (shares): These shares give effect to the Reporting Person's quarterly cash compensation for services on the board of directors of the Company as if reinvested in Phantom Shares.
Oct 2, 2026	Doyle Simons - Director	Grant or award	Phantom Stock	350.49^{footnote F2}	$113.92	$40K
Footnote F2 (shares): These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares.
Oct 2, 2026	Theodore R. Samuels II - Director	Grant or award	Phantom Stock	104.67^{footnote F2}	$113.92	$12K
Footnote F2 (shares): These shares give effect to the Reporting Person's quarterly cash compensation for services on the board of directors of the Company as if reinvested in Phantom Shares.
Oct 1, 2026	William L. Meaney - Officer	Option exercise	Common Stock, par value $.01 per share	38,474	$37.00	$1.42M
Oct 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	13,358	$109.57^{footnote F2}	$1.46M
Oct 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	10,808	$110.56^{footnote F3}	$1.19M
Oct 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	14,308	$111.18^{footnote F4}	$1.59M
Oct 1, 2026	William L. Meaney - Officer	Option exercise	Employee Stock Option (Right to Buy)	38,474	-^{footnote F6}	-
Footnote F2 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $109.02 to $110.00, inclusive. The Reporting Person undertakes to provide Iron Mountain… Full note on SEC EDGAR Footnote F3 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $110.02 to $111.02, inclusive. The Reporting Person undertakes to provide the Company, any security… Full note on SEC EDGAR Footnote F4 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $111.03 to $111.55, inclusive. The Reporting Person undertakes to provide the Company, any security… Full note on SEC EDGAR Footnote F6 (price): Not applicable.
Oct 1, 2026	Greg W. McIntosh - Officer	Open-market sale	Common Stock, par value $.01 per share	5,000	$110.72	$554K
Sep 1, 2026	William L. Meaney - Officer	Option exercise	Common Stock, par value $.01 per share	38,474	$37.00	$1.42M
Sep 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	11,332	$113.45^{footnote F2}	$1.29M
Sep 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	20,952	$114.14^{footnote F3}	$2.39M
Sep 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	6,101	$115.00^{footnote F4}	$702K
Sep 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	89	$116.00^{footnote F5}	$10K
Sep 1, 2026	William L. Meaney - Officer	Option exercise	Employee Stock Option (Right to Buy)	38,474	-^{footnote F7}	-
Footnote F2 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $112.75 to $113.74, inclusive. The Reporting Person undertakes to provide Iron Mountain… Full note on SEC EDGAR Footnote F3 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $113.75 to $114.74, inclusive. The Reporting Person undertakes to provide the Company, any security… Full note on SEC EDGAR Footnote F4 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $114.75 to $115.67, inclusive. The Reporting Person undertakes to provide the Company, any security… Full note on SEC EDGAR Footnote F5 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $115.96 to $116.22, inclusive. The Reporting Person undertakes to provide the Company, any security… Full note on SEC EDGAR Footnote F7 (price): Not applicable.
Sep 1, 2026	Greg W. McIntosh - Officer	Open-market sale	Common Stock, par value $.01 per share	5,000	$115.60	$578K
Sep 1, 2026	Mark Kidd - Officer	Open-market sale	Common Stock, par value $.01 per share	6,000	$115.60	$694K
Aug 7, 2026	William L. Meaney - Officer	Option exercise	Common Stock, par value $.01 per share	38,474	$37.00	$1.42M
Aug 7, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	18,780	$121.10^{footnote F2}	$2.27M
Aug 7, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	16,785	$122.11^{footnote F3}	$2.05M
Aug 7, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	2,909	$122.75^{footnote F4}	$357K
Aug 7, 2026	William L. Meaney - Officer	Option exercise	Employee Stock Option (Right to Buy)	38,474	-^{footnote F6}	-
Footnote F2 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $120.56 to $121.55, inclusive. The Reporting Person undertakes to provide Iron Mountain… Full note on SEC EDGAR Footnote F3 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $121.56 to $122.56, inclusive. The Reporting Person undertakes to provide the Company, any security… Full note on SEC EDGAR Footnote F4 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated Common Stock were sold in multiple transactions at prices ranging from $122.60 to $123.12, inclusive. The Reporting Person undertakes to provide the Company, any security… Full note on SEC EDGAR Footnote F6 (price): Not applicable.
Aug 7, 2026	Mark Kidd - Officer	Open-market sale	Common Stock, par value $.01 per share	6,000	$122.70	$736K
Aug 6, 2026	Greg W. McIntosh - Officer	Open-market sale	Common Stock, par value $.01 per share	5,000	$127.13	$636K
Aug 6, 2026	Greg W. McIntosh - Officer	Option exercise	Common Stock, par value $.01 per share	6,839	$37.00	$253K
Aug 6, 2026	Greg W. McIntosh - Officer	Open-market sale	Common Stock, par value $.01 per share	6,839	$127.13	$869K
Aug 6, 2026	Greg W. McIntosh - Officer	Option exercise	Employee Stock Option (Right to Buy)	6,839	-^{footnote F3}	-
Footnote F3 (price): Not applicable.
Jul 6, 2026	Doyle Simons - Director	Grant or award	Phantom Stock	339.36^{footnote F2}	$116.79	$40K
Footnote F2 (shares): These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares.
Jul 6, 2026	Theodore R. Samuels II - Director	Grant or award	Phantom Stock	99.06^{footnote F2}	$116.79	$12K
Footnote F2 (shares): These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares.
Jul 2, 2026	Theodore R. Samuels II - Director	Grant or award	Phantom Stock	310.86^{footnote F2}	$116.61	$36K
Footnote F2 (shares): These shares give effect to the Reporting Person's quarterly cash compensation for services on the board of directors of the Company as if reinvested in Phantom Shares.
Jul 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	1,601	$124.72^{footnote F5}	$200K
Jul 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	2,530	$125.82^{footnote F6}	$318K
Jul 1, 2026	William L. Meaney - Officer	Option exercise	Employee Stock Option (Right to Buy)	38,474	-^{footnote F8}	-
Jul 1, 2026	William L. Meaney - Officer	Option exercise	Common Stock, par value $.01 per share	38,474	$37.00	$1.42M
Jul 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	17,514	$121.81^{footnote F2}	$2.13M
Jul 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	9,656	$122.84^{footnote F3}	$1.19M
Jul 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	7,173	$123.84^{footnote F4}	$888K
Footnote F2 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $121.40 to $122.39, inclusive. The Reporting Person undertakes to provide Iron Mountain… Full note on SEC EDGAR Footnote F3 (price): The price reported in Column 4 is a weighted average price. These Common Stock were sold in multiple transactions at prices ranging from $122.40 to 123.39, inclusive. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the… Full note on SEC EDGAR Footnote F4 (price): The price reported in Column 4 is a weighted average price. These Common Stock were sold in multiple transactions at prices ranging from $123.40 to 124.38, inclusive. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the… Full note on SEC EDGAR Footnote F5 (price): The price reported in Column 4 is a weighted average price. These Common Stock were sold in multiple transactions at prices ranging from $124.44 to $125.38, inclusive. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the… Full note on SEC EDGAR Footnote F6 (price): The price reported in Column 4 is a weighted average price. These Common Stock were sold in multiple transactions at prices ranging from $125.51 to $126.43, inclusive. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the… Full note on SEC EDGAR Footnote F8 (price): Not applicable.
Jul 1, 2026	Mark Kidd - Officer	Open-market sale	Common Stock, par value $.01 per share	6,000	$125.62	$754K
Jun 1, 2026	William L. Meaney - Officer	Option exercise	Common Stock, par value $.01 per share	38,474	$37.00	$1.42M
Jun 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	10,156	$126.20^{footnote F2}	$1.28M
Jun 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	10,457	$127.00^{footnote F3}	$1.33M
Jun 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	7,523	$127.90^{footnote F4}	$962K
Jun 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	9,247	$129.14^{footnote F5}	$1.19M
Jun 1, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	1,091	$129.66^{footnote F6}	$141K
Jun 1, 2026	William L. Meaney - Officer	Option exercise	Employee Stock Option (Right to Buy)	38,474	-^{footnote F8}	-
Footnote F2 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $125.49 to $126.48, inclusive. The Reporting Person undertakes to provide Iron Mountain… Full note on SEC EDGAR Footnote F3 (price): The price reported in Column 4 is a weighted average price. These Common Stock were sold in multiple transactions at prices ranging from $126.50 to $127.48, inclusive. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the… Full note on SEC EDGAR Footnote F4 (price): The price reported in Column 4 is a weighted average price. These Common Stock were sold in multiple transactions at prices ranging from $127.50 to $128.48, inclusive. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the… Full note on SEC EDGAR Footnote F5 (price): The price reported in Column 4 is a weighted average price. These Common Stock were sold in multiple transactions at prices ranging from $128.55 to $129.54, inclusive. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the… Full note on SEC EDGAR Footnote F6 (price): The price reported in Column 4 is a weighted average price. These Common Stock were sold in multiple transactions at prices ranging from $129.55 to $129.78, inclusive. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the… Full note on SEC EDGAR Footnote F8 (price): Not applicable.
Jun 1, 2026	Mark Kidd - Officer	Open-market sale	Common Stock, par value $.01 per share	6,000	$126.70	$760K
May 21, 2026	Daniel Borges - Officer	Open-market sale	Common Stock, par value $.01 per share	7,189	$125.50	$902K
May 20, 2026	Walter C. Rakowich - Director	Open-market sale	Common Stock, par value $.01 per share	757	$124.45	$94K
May 12, 2026	Pamela M. Arway - Director	Open-market sale	Common Stock, par value $.01 per share	1,892	$128.97	$244K
May 8, 2026	William L. Meaney - Officer	Option exercise	Common Stock, par value $.01 per share	38,474	$37.00	$1.42M
May 8, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	14,876	$128.52^{footnote F2}	$1.91M
May 8, 2026	William L. Meaney - Officer	Open-market sale	Common Stock, par value $.01 per share	23,598	$129.19^{footnote F3}	$3.05M
May 8, 2026	William L. Meaney - Officer	Option exercise	Employee Stock Option (Right to Buy)	38,474	-^{footnote F5}	-
Footnote F2 (price): The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $127.74 to $128.73, inclusive. The Reporting Person undertakes to provide Iron Mountain… Full note on SEC EDGAR Footnote F3 (price): The price reported in Column 4 is a weighted average price. These Common Stock were sold in multiple transactions at prices ranging from $128.74 to $129.64, inclusive. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the… Full note on SEC EDGAR Footnote F5 (price): Not applicable.
May 8, 2026	Mark Kidd - Officer	Open-market sale	Common Stock, par value $.01 per share	6,000	$127.91	$767K
May 7, 2026	Theodore R. Samuels II - Director	Grant or award	Phantom Stock	1,892^{footnote F2}	$0.00	-
Footnote F2 (shares): Consists of shares issuable upon the settlement of restricted stock units ("RSUs") granted on May 7, 2026. The RSUs vest in their entirety on the grant date. The Reporting Person has elected that upon vesting of RSUs, receipt of the shares of Common Stock be deferred under the… Full note on SEC EDGAR
May 7, 2026	Monte E. Ford - Director	Grant or award	Common Stock, par value $.01 per share	1,892^{footnote F1}	$0.00	-
Footnote F1 (shares): Consists of shares issuable upon the settlement of restricted stock units ("RSUs") granted on May 7, 2026. The RSUs vest in their entirety on the grant date.
May 7, 2026	June Yee Felix - Director	Grant or award	Common Stock, par value $.01 per share	1,892^{footnote F1}	$0.00	-
Footnote F1 (shares): Consists of shares issuable upon the settlement of restricted stock units ("RSUs") granted on May 7, 2026. The RSUs vest in their entirety on the grant date.
May 7, 2026	Kent P. Dauten - Director	Grant or award	Common Stock, par value $.01 per share	1,892^{footnote F1}	$0.00	-
Footnote F1 (shares): Consists of shares issuable upon the settlement of restricted stock units ("RSUs") granted on May 7, 2026. The RSUs vest in their entirety on the grant date.
May 7, 2026	Robin Matlock - Director	Grant or award	Common Stock, par value $.01 per share	1,892^{footnote F1}	$0.00	-
Footnote F1 (shares): Consists of shares issuable upon the settlement of restricted stock units ("RSUs") granted on May 7, 2026. The RSUs vest in their entirety on the grant date.
May 7, 2026	Doyle Simons - Director	Grant or award	Common Stock, par value $.01 per share	1,892^{footnote F1}	$0.00	-
Footnote F1 (shares): Consists of shares issuable upon the settlement of restricted stock units ("RSUs") granted on May 7, 2026. The RSUs vest in their entirety on the grant date.
May 7, 2026	Walter C. Rakowich - Director	Grant or award	Common Stock, par value $.01 per share	1,892^{footnote F1}	$0.00	-
Footnote F1 (shares): Consists of shares issuable upon the settlement of restricted stock units ("RSUs") granted on May 7, 2026. The RSUs vest in their entirety on the grant date.

Recent IRM Form 8-K filings

Read IRM company news

Aug 5, 2026Item 2.02, 9.01

Read the filing on SEC EDGAR

Jun 26, 2026Item 1.01, 2.03, 9.01

Read the filing on SEC EDGAR

May 12, 2026Item 5.07, 8.01, 9.01

Read the filing on SEC EDGAR

Apr 30, 2026Item 2.02, 9.01

Recent IRM Form 144 notices of proposed sale

An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.

Filed	Filer	Relationship	Shares	Market value	Notice
Oct 1, 2026	McIntosh Greg W	Officer	5,000	$554K	View on EDGAR
Oct 1, 2026	Meaney William L	Officer, Director	38,474

IRM insider trading FAQ

What is the latest insider trade for IRM?

IRON MOUNTAIN INC (IRM) had 11 insider filings in the last 90 days, with the most recent on 2026-10-08. The full record for IRM runs to 114 Form 4 filings, the earliest from 2024-10-03. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.

How many insiders are buying IRM stock?

No insider purchases of IRM were filed in the last 90 days. 1 purchase is on record for this company.

How many insiders are selling IRM stock?

16 insider sales of IRM were filed in the last 90 days, totaling $17.39M.

Where can I see IRM SEC filings (Form 4, 10-K, 10-Q, 8-K)?

This page collects IRM Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.

More Real Estate companies with insider activity

Recent insider filings

The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.

Oct 8, 2026 - Theodore R. Samuels II view on EDGAR
Oct 5, 2026 - Doyle Simons view on EDGAR
Oct 5, 2026 - Theodore R. Samuels II view on EDGAR
Oct 5, 2026 - William L. Meaney view on EDGAR
Oct 5, 2026 - Greg W. McIntosh view on EDGAR
Sep 2, 2026 - William L. Meaney view on EDGAR
Sep 2, 2026 - Greg W. McIntosh view on EDGAR
Sep 2, 2026 - Mark Kidd view on EDGAR
Aug 10, 2026 - William L. Meaney view on EDGAR

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Learn more

Insider selling: signal or noise?: Why most insider sales are routine, and the few patterns worth a second look.
Form 144 vs Form 4: A Form 144 announces a planned sale; the Form 4 reports it after it happens.
Insider activity in Real Estate: Where IRM's peers are being bought and sold.
Every recent Form 4: The market-wide feed, updated as filings arrive from SEC EDGAR.

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Form 4 transaction type

Transactions

Total value

Open-market sale

149,261

$17.39M

Grant or award

765.65

Option exercise

244,522

Date

Insider

Transaction

Security

Price

Value

Oct 6, 2026

Theodore R. Samuels II - Director

Grant or award

Phantom Stock

310.49^{footnote F2}

$116.75

$36K

Footnote F2 (shares): These shares give effect to the Reporting Person's quarterly cash compensation for services on the board of directors of the Company as if reinvested in Phantom Shares.

Oct 2, 2026

Doyle Simons - Director

Grant or award

Phantom Stock

350.49^{footnote F2}

$113.92

$40K

Footnote F2 (shares): These shares give effect to dividends paid on Common Stock as if reinvested in Phantom Shares.

Oct 2, 2026

Theodore R. Samuels II - Director

Grant or award

Phantom Stock

104.67^{footnote F2}

$113.92

$12K

Footnote F2 (shares): These shares give effect to the Reporting Person's quarterly cash compensation for services on the board of directors of the Company as if reinvested in Phantom Shares.

Oct 1, 2026