Adam Lee Soroca - Jul 3, 2025 Form 4 Insider Report for MAGNITE, INC. (MGNI)

Signature
/s/ Aaron Saltz, attorney-in-fact
Stock symbol
MGNI
Transactions as of
Jul 3, 2025
Transactions value $
-$1,023,627
Form type
4
Date filed
7/8/2025, 05:20 PM
Previous filing
Jun 26, 2025
Next filing
Aug 20, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Soroca Adam Lee CHIEF PRODUCT OFFICER C/O MAGNITE, INC., 1250 BROADWAY, 15TH FLOOR, NEW YORK /s/ Aaron Saltz, attorney-in-fact 2025-07-08 0001725125

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MGNI Common Stock Options Exercise $3.94 +2 +0% $1.97 401K Jul 3, 2025 Direct F1
transaction MGNI Common Stock Options Exercise $41K +8.33K +2.08% $4.92 409K Jul 3, 2025 Direct F1
transaction MGNI Common Stock Sale -$1.06M -42.6K -10.41% $25.00 367K Jul 3, 2025 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 Employee Stock Option (Right to Buy) Options Exercise $0 -2 -100% $0.00 0 Jul 3, 2025 Common Stock 2 $1.97 Direct F1, F2, F3
transaction MGNI Employee Stock Option (Right to Buy) Options Exercise $0 -8.33K -6.41% $0.00 122K Jul 3, 2025 Common Stock 8.33K $4.92 Direct F1, F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 This exercise and subsequent sale were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 7, 2025.
F2 The stock options have fully vested and are immediately exercisable.
F3 Granted as compensation for services.