Gephart Brian - Insider Non-Derivative Transactions at MAGNITE, INC. (MGNI) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Nov 15, 2025, Gephart Brian's relationship to MAGNITE, INC. (MGNI) is Officer (CHIEF ACCOUNTING OFFICER), and currently has 89,349 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other MGNI insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

Gephart Brian - Insider Non-Derivative Transactions of MGNI Common Stock

Gephart Brian - Insider Non-Derivative Transactions at MGNI

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Nov 16, 2025	F -- (Common Stock)	3549	14.15	89349
Sep 5, 2025	Sell -- (Common Stock)	27671	24.71	92898
Aug 19, 2025	Sell -- (Common Stock)	2961	23.85	120569
May 16, 2025	F -- (Common Stock)	3045	15.88	123530
May 13, 2025	Sell -- (Common Stock)	6334	16.16	126575
Mar 4, 2025	Sell -- (Common Stock)	6250	16	132909
Feb 16, 2025	F -- (Common Stock)	6749	20	139159
Jan 3, 2025	Acquisition -- (Common Stock)	33113	0	145908
Nov 19, 2024	Sell -- (Common Stock)	2156	15.6	112795
Nov 16, 2024	F -- (Common Stock)	2031	15.85	114951
Nov 12, 2024	Sell -- (Common Stock)	2156	15	116982
Aug 16, 2024	F -- (Common Stock)	2031	12.51	119138
Jul 16, 2024	Sell -- (Common Stock)	16166	15	121169
May 16, 2024	F -- (Common Stock)	2004	9.8	137335
Feb 16, 2024	F -- (Common Stock)	5650	9.74	139339
Jan 3, 2024	Acquisition -- (Common Stock)	50667	0	144989
Nov 16, 2023	F -- (Common Stock)	1100	7.89	94322
Aug 17, 2023	Sell -- (Common Stock)	1141	8.31	95422
May 17, 2023	Sell -- (Common Stock)	1237	10.88	96563
Feb 16, 2023	F -- (Common Stock)	3850	13.27	97800
Jan 2, 2023	Acquisition -- (Common Stock)	45167	0	101650