Brian Gephart - Jul 1, 2021 Form 4 Insider Report for MAGNITE, INC. (MGNI)

Role: Chief Accounting Officer
Signature: /s/ Aaron Saltz, attorney-in-fact
Stock symbol: MGNI
Transactions as of: Jul 1, 2021
Transactions value $: $0
Form type: 4
Date filed: 7/2/2021, 04:42 PM
Previous filing: Jul 2, 2021
Next filing: Feb 3, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MGNI	Common Stock	Award	$0	+18.3K		$0.00	18.3K	Jul 1, 2021	Direct	F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MGNI	Stock Option (Right to Buy)	Award	$0	+13.6K		$0.00	13.6K	Jul 1, 2021	Common Stock	13.6K	$34.68	Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents restricted stock units that vest as follows: 4,948 on August 15, 2022, 1,142 on each November 15, February 15, May 15 and August 15 thereafter until May 15, 2025 and 758 on August 15, 2025, subject to the Reporting Person's continued service to the Issuer through each vesting date. This equity grant may be subject to accelerated vesting in the event the Reporting Person's employment is terminated under certain circumstances.
F2	Equity grant under the Issuer's 2014 Equity Incentive Plan.
F3	25% of the total number of shares underlying the option will vest on June 28, 2022 and the remaining shares vest 1/36 per month over the next 36 months thereafter, subject to the Reporting Person's continued service to the Issuer through each vesting date. This equity grant may be subject to accelerated vesting in the event the Reporting Person's employment is terminated under certain circumstances.