Aaron Saltz - 08 Sep 2021 Form 4 Insider Report for MAGNITE, INC. (MGNI)

Role: General Counsel
Signature: /s/ Aaron Saltz
Issuer symbol: MGNI
Transactions as of: 08 Sep 2021
Net transactions value: -$950,580
Form type: 4
Filing time: 10 Sep 2021, 20:11:54 UTC
Previous filing: 18 Aug 2021
Next filing: 17 Nov 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MGNI	Common Stock	Options Exercise	$41,873	+5,410	+2.1%	$7.74	263,826	08 Sep 2021	Direct
transaction	MGNI	Common Stock	Options Exercise	$157,532	+28,852	+11%	$5.46	292,678	08 Sep 2021	Direct
transaction	MGNI	Common Stock	Options Exercise	$5,095	+965	+0.33%	$5.28	293,643	10 Sep 2021	Direct
transaction	MGNI	Common Stock	Options Exercise	$29,833	+8,264	+2.8%	$3.61	301,907	10 Sep 2021	Direct
transaction	MGNI	Common Stock	Options Exercise	$23,607	+4,575	+1.5%	$5.16	306,482	10 Sep 2021	Direct
transaction	MGNI	Common Stock	Sale	$1,208,521	-40,004	-13%	$30.21	266,478	10 Sep 2021	Direct	F1

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)	Options Exercise	$0	-5,410	-100%	$0.000000^*	0	08 Sep 2021	Common Stock	5,410	$7.74	Direct	F2, F3
transaction	MGNI	Stock Option (Right to Buy)	Options Exercise	$0	-28,852	-100%	$0.000000^*	0	08 Sep 2021	Common Stock	28,852	$5.46	Direct	F2, F3
transaction	MGNI	Stock Option (Right to Buy)	Options Exercise	$0	-965	-3.1%	$0.000000	29,911	10 Sep 2021	Common Stock	965	$5.28	Direct	F3, F4
transaction	MGNI	Stock Option (Right to Buy)	Options Exercise	$0	-8,264	-19%	$0.000000	35,336	10 Sep 2021	Common Stock	8,264	$3.61	Direct	F3, F5
transaction	MGNI	Stock Option (Right to Buy)	Options Exercise	$0	-4,575	-17%	$0.000000	22,872	10 Sep 2021	Common Stock	4,575	$5.16	Direct	F3, F6

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

Explanation of Responses:

Id	Content
F1	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.15 to $30.33, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F2	This option is fully vested and immediately exercisable.
F3	Equity grant under the Company's 2014 Equity Incentive Plan.
F4	25% of the total number of shares underlying this option vested on April 1, 2021 and the remaining shares vest 1/36 per month over the next 36 months thereafter, subject to 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.
F5	25% of the total number of shares underlying this option vested on February 14, 2019 and the remaining shares vest 1/36 per month over the next 36 months thereafter, subject to 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.
F6	25% of the total number of shares underlying this option vested on February 14, 2020 and the remaining shares vest 1/36 per month over the next 36 months thereafter, subject to 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.