Magnite CFO reports 26,258-share stock gift

MAGNITE, INC. chief financial officer David Day reported a bona fide gift of 26,258 shares of Common Stock on August 13, 2026.

Rhea-AI Filing Summary

MAGNITE, INC. chief financial officer David Day reported a bona fide gift of 26,258 shares of Common Stock on August 13, 2026. The gift was recorded at $0.00 per share. Following this disposition, Day directly holds 467,031 shares of Common Stock. The transaction was not marked as being made under a Rule 10b5-1 trading plan.

Insider Trade Summary

26,258 shares gifted

Gift 1 txn

Insider Day David

Role CHIEF FINANCIAL OFFICER

Type	Security	Shares	Price	Value
Gift	Common Stock	26,258	$0.00	$0.00

Holdings After Transaction: Common Stock — 467,031 shares (Direct)

Key Figures

Shares gifted: 26,258 shares Per-share reported price: $0.00 per share Shares held after transaction: 467,031 shares +1 more

4 metrics

Shares gifted 26,258 shares Bona fide gift of Common Stock on August 13, 2026

Per-share reported price $0.00 per share Reported value for the bona fide gift transaction

Shares held after transaction 467,031 shares Direct Common Stock holdings after the gift

Gift transactions in filing 1 transaction Single bona fide gift reported in this Form 4

Key Terms

Bona fide gift, Common Stock, Rule 10b5-1

3 terms

Bona fide gift financial

"transaction_code_description": "Bona fide gift"

A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.

Common Stock financial

"security_title": "Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Rule 10b5-1 regulatory

"Rule 10b5-1 checkbox was left unchecked"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

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

What did MAGNITE, INC. (MGNI) CFO David Day report in this Form 4?

David Day reported a bona fide gift of 26,258 shares of MAGNITE, INC. Common Stock on August 13, 2026. This was a disposition coded as a gift, not a market sale or purchase.

How many MGNI shares did CFO David Day hold after the reported gift?

After the reported gift, David Day directly held 467,031 shares of MAGNITE, INC. Common Stock. This figure reflects his position immediately following the 26,258-share bona fide gift transaction.

Was the MAGNITE (MGNI) insider transaction executed under a Rule 10b5-1 plan?

The filing indicates the transaction was not made under a Rule 10b5-1 trading plan. The Rule 10b5-1 checkbox was left unchecked, and no footnotes describe any pre-arranged trading arrangement.

What transaction code was used for the MGNI CFO’s Form 4 filing?

The transaction used code G, described as a bona fide gift of Common Stock. This code signifies a gift disposition rather than an open-market sale or purchase of MAGNITE, INC. shares.

At what price was the MGNI stock gift reported for CFO David Day?

The bona fide gift of 26,258 shares was reported at a per-share price of $0.00. This reflects gift treatment and does not represent an open-market transaction price or proceeds received.

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

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Accepted by SEC EDGAR 08/14/2026 - 04:16 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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).

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^*

Day David

(Last) (First) (Middle)

C/O MAGNITE, INC.

1250 BROADWAY, 9TH FLOOR

(Street)

NEW YORK NEW YORK 10001

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MAGNITE, INC. [ MGNI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CHIEF FINANCIAL OFFICER

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/13/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/13/2026		G		26,258	D	$0	467,031	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

	/s/ Aaron Saltz, attorney-in-fact	08/14/2026
	** Signature of Reporting Person	Date
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)