Vertiv director plans Rule 144 sale of 15,287 shares

Rhea-AI Filing Summary

Vertiv Holdings Co (VRT) received a Rule 144 notice from director Edward Monser covering a planned sale of up to 15,287 shares of common stock. The shares are expected to be sold on or about 09/01/2026 through Morgan Stanley Smith Barney LLC on the NYSE, following an exercise of stock options for cash.

The filing lists an aggregate market value for the shares of $3,955,052.64 and notes that Vertiv had 384,988,173 shares outstanding of common stock. This notice indicates an intention to sell under Rule 144 rather than confirming that any sale has already occurred.

Key Figures

Shares to be sold: 15,287 shares Aggregate market value: $3,955,052.64 Shares outstanding: 384,988,173 shares +1 more

4 metrics

Shares to be sold 15,287 shares Planned Rule 144 sale by Edward Monser

Aggregate market value $3,955,052.64 Value of 15,287 Vertiv common shares in Rule 144 notice

Shares outstanding 384,988,173 shares Vertiv common shares outstanding referenced in the notice

Proposed sale date 09/01/2026 Approximate date of sale for the 15,287 shares

Key Terms

Rule 144, Aggregate market value, Exercise of Stock Options

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Aggregate market value financial

"15287 | 3955052.64 | 384988173 | 09/01/2026 | NYSE"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Exercise of Stock Options financial

"Common | 09/01/2026 | Exercise of Stock Options | Issuer"

FAQ

What does Edward Monser's Form 144 filing mean for Vertiv (VRT)?

The Form 144 indicates that director Edward Monser intends to sell up to 15,287 Vertiv (VRT) common shares under Rule 144. It is a notice of a potential sale, not confirmation that the sale has occurred.

How many Vertiv (VRT) shares does Edward Monser plan to sell?

Edward Monser plans to sell up to 15,287 shares of Vertiv (VRT) common stock. The filing lists these shares with an aggregate market value of $3,955,052.64 in connection with the planned Rule 144 sale.

When is the proposed sale date for Edward Monser's Vertiv (VRT) shares?

The proposed sale date for Edward Monser's Vertiv (VRT) shares is on or about 09/01/2026. This date appears in the Rule 144 notice as the approximate date of sale for the 15,287 shares of common stock.

How will Edward Monser acquire the Vertiv (VRT) shares he plans to sell?

The shares are to be acquired through the exercise of stock options from the issuer, Vertiv Holdings Co, for cash. The Form 144 lists the nature of acquisition as “Exercise of Stock Options” and the consideration given as “Cash.”

What is Vertiv (VRT)'s total common shares outstanding referenced in the Form 144?

The Form 144 states that Vertiv Holdings Co has 384,988,173 shares outstanding of common stock. This figure provides context for the planned sale of 15,287 shares under Rule 144.

Which broker is handling Edward Monser's proposed Vertiv (VRT) share sale?

The proposed sale will be handled through Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, New York. The 15,287 Vertiv (VRT) shares are expected to be sold on the NYSE.

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

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Available on EDGAR 09/01/2026 - 04:48 PM Accepted by SEC EDGAR 09/01/2026 - 04:47 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001183480
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Vertiv Holdings Co
SEC File Number	001-38518
Address of Issuer	505 N Cleveland Ave Westerville OHIO 43082
Phone	614-888-0246
Name of Person for Whose Account the Securities are To Be Sold	EDWARD MONSER
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	15287	3955052.64	384988173	09/01/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/01/2026	Exercise of Stock Options	Issuer			15287	09/01/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	09/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/22/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Edward Monser
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)