STOCK TITAN

Iron Mountain (IRM) CEO Meaney exercises 38K options and sells 38K shares

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Iron Mountain Inc. President and CEO William L. Meaney exercised employee stock options for 38,474 shares of common stock at an exercise price of $37.00 per share and, on the same date, sold 38,474 shares in multiple open-market transactions at weighted average prices between $120.56 and $123.12. The option exercised was part of a grant that is fully vested and left 153,896 options remaining. Meaney also reports indirect ownership of 82,970 shares held by Meaney 2024 Master Trust and 212,680 shares held by Meaney Master Trust #2. All reported trades were made pursuant to a Rule 10b5-1 trading plan adopted on March 14, 2025.

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Insider Meaney William L
Role President and CEO
Sold 38,474 shs ($4.68M)
Approx. gross sale proceeds $4.68M
Approx. exercise cost $1.42M
Approx. pre-tax spread $3.26M
Type Security Shares Price Value
Exercise Employee Stock Option (Right to Buy) F1, F6, F5 38,474 -- --
Exercise Common Stock, par value $.01 per share F1 38,474 $37.00 $1.42M
Sale Common Stock, par value $.01 per share F1, F2 18,780 $121.10 $2.27M
Sale Common Stock, par value $.01 per share F1, F3 16,785 $122.11 $2.05M
Sale Common Stock, par value $.01 per share F1, F4 2,909 $122.75 $357K
holding Common Stock, par value $.01 per share -- -- --
holding Common Stock, par value $.01 per share -- -- --
Holdings After Transaction: Employee Stock Option (Right to Buy) — 153,896 shares (Direct); Common Stock, par value $.01 per share — 0 shares (Direct); Common Stock, par value $.01 per share — 82,970 shares (Indirect, By Meaney 2024 Master Trust); Common Stock, par value $.01 per share — 212,680 shares (Indirect, By Meaney Master Trust #2)
Footnotes (6)
  1. F1. This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.
  2. F2. 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 Incorporated (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (2).
  3. F3. 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 holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (3).
  4. F4. 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 holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (4).
  5. F5. This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested.
  6. F6. Not applicable.
Options Exercised 38,474 shares Employee stock options for common stock exercised on August 7, 2026
Exercise Price $37.00 per share Exercise price of employee stock options converted into common stock
Shares Sold 38,474 shares Total common shares sold in open-market transactions on August 7, 2026
Sale Prices $121.10, $122.11, $122.75 per share Weighted average prices for three sale blocks with ranges $120.56–$123.12
Remaining Options 153,896 options Stock options remaining from fully vested grant after exercise
Indirect Holdings (Trust 1) 82,970 shares Common shares held indirectly by Meaney 2024 Master Trust
Indirect Holdings (Trust 2) 212,680 shares Common shares held indirectly by Meaney Master Trust #2
Rule 10b5-1 trading plan financial
"This transaction was made pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
Employee Stock Option (Right to Buy) financial
"security_title: Employee Stock Option (Right to Buy)"
weighted average price financial
"The price reported in Column 4 is a weighted average price"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
indirect ownership financial
"ownership_type "indirect" with nature_of_ownership by trusts"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What did IRON MOUNTAIN INC (IRM) CEO William Meaney report on this Form 4?

William L. Meaney reported exercising 38,474 stock options at $37.00 per share and selling 38,474 common shares on August 7, 2026 in multiple open-market transactions under a Rule 10b5-1 trading plan.

How many IRM options did the CEO exercise and at what price?

Meaney exercised 38,474 employee stock options for Iron Mountain common stock at an exercise price of $37.00 per share. These options came from a fully vested grant that initially covered 461,696 shares and now has 153,896 options remaining.

How many IRON MOUNTAIN INC (IRM) shares did the CEO sell and at what prices?

He sold 38,474 shares of Iron Mountain common stock in three weighted-average price blocks at $121.10, $122.11, and $122.75 per share, with underlying trade ranges from $120.56 to $123.12.

Were the IRM trades by CEO William Meaney under a Rule 10b5-1 plan?

Yes. All reported transactions were made pursuant to a Rule 10b5-1 trading plan adopted by William L. Meaney on March 14, 2025, as disclosed in the footnotes and affirmed in the filing.

What IRON MOUNTAIN INC (IRM) holdings does the CEO report in trusts?

Meaney reports indirect ownership of 82,970 shares of Iron Mountain common stock held by the Meaney 2024 Master Trust and 212,680 shares held by the Meaney Master Trust #2, in addition to his directly held positions.

How many options remain from the exercised IRM option grant for the CEO?

After exercising 38,474 options from a fully vested grant initially covering 461,696 shares, 153,896 stock options remain outstanding under that grant for William L. Meaney, according to the post-transaction holdings data.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Meaney William L

(Last)(First)(Middle)
C/O IRON MOUNTAIN INCORPORATED
85 NEW HAMPSHIRE AVENUE, SUITE 150

(Street)
PORTSMOUTH NEW HAMPSHIRE 03801

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
IRON MOUNTAIN INC [ IRM ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
President and CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/07/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock, par value $.01 per share08/07/2026M(1)38,474A$3738,474D
Common Stock, par value $.01 per share08/07/2026S(1)18,780D$121.1(2)19,694D
Common Stock, par value $.01 per share08/07/2026S(1)16,785D$122.11(3)2,909D
Common Stock, par value $.01 per share08/07/2026S(1)2,909D$122.75(4)0D
Common Stock, par value $.01 per share82,970IBy Meaney 2024 Master Trust
Common Stock, par value $.01 per share212,680IBy Meaney Master Trust #2
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Employee Stock Option (Right to Buy)$3708/07/2026M(1)38,474 (5)02/16/2027Common Stock, par value $.01 per share38,474(6)153,896D
Explanation of Responses:
1. This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 14, 2025.
2. 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 Incorporated (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (2).
3. 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 holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (3).
4. 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 holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (4).
5. This stock option, initially representing a right to purchase a total of 461,696 shares, is fully vested.
6. Not applicable.
Remarks:
/s/ Christine Zhang, under Power of Attorney dated February 27, 2025, from William Meaney08/10/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)