Magnite officer Aaron Saltz proposes $276K share sale

The notice lists 143,559,468 common shares outstanding alongside the proposed sale's $275,915.67 aggregate market value.

Available on EDGAR 11/09/2026 - 05:02 PM EST Accepted by SEC EDGAR 11/09/2026 - 05:01 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

MAGNITE, INC. officer Aaron Saltz gave notice of a proposed sale of 9,597 common shares, with an aggregate market value of $275,915.67 and an approximate sale date of November 9, 2026. The notice lists 143,559,468 common shares outstanding. The shares were acquired from the issuer as restricted stock on May 15, 2021; remarks state the securities to be sold were acquired upon vesting of restricted stock from May 15, 2021 through November 15, 2023.

Key Figures

Common shares proposed for sale: 9,597 shares Aggregate market value: $275,915.67 Common shares outstanding: 143,559,468 shares

3 metrics

Common shares proposed for sale 9,597 shares Proposed sale by Aaron Saltz

Aggregate market value $275,915.67 Proposed sale

Common shares outstanding 143,559,468 shares Amount listed in the securities information

Key Terms

Restricted Stock, Aggregate Market Value, Number of Shares or Other Units Outstanding

3 terms

Restricted Stock technical

"Nature of Acquisition Transaction: Restricted Stock"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Aggregate Market Value financial

"Aggregate Market Value | 275915.67"

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.

Number of Shares or Other Units Outstanding financial

"Number of Shares or Other Units Outstanding | 143559468"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many MGNI shares did Aaron Saltz propose to sell?

Aaron Saltz, an officer of MAGNITE, INC., reported a proposed sale of 9,597 common shares, with an aggregate market value of $275,915.67. The approximate sale date is November 9, 2026.

When did Aaron Saltz acquire the MGNI shares proposed for sale?

The shares were acquired from the issuer as restricted stock, and the notice lists May 15, 2021 as the acquisition date. Its remarks state that the securities to be sold were acquired upon vesting of restricted stock from May 15, 2021 through November 15, 2023.

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

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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	0001807986
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	MAGNITE, INC.
SEC File Number	001-36384
Address of Issuer	1250 Broadway, 9th Floor New York, NEW YORK 10001
Phone	(212) 243-2769
Name of Person for Whose Account the Securities are To Be Sold	AARON SALTZ
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	Officer

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	9597	275915.67	143559468	11/09/2026	NASDAQ

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	05/15/2021	Restricted Stock	Issuer			9597	05/15/2021	Not Applicable

* 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	The securities to be sold were acquired upon the vesting of restricted stock during the period of 05/15/2021 through 11/15/2023.
Date of Notice	11/09/2026
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/ Aaron Saltz
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)