Sean Patrick Buckley Magnite, Inc. (MGNI) insider trading activity

Sean Patrick Buckley is President, Revenue of MAGNITE, INC.. Currently has a direct ownership of 287,193 shares of MGNI, which is worth approximately $6.82 Million. The most recent transaction as insider was on Sep 09, 2025, when has been sold 20,000 shares (Common Stock) at a price of $24.61 per share, resulting in proceeds of $492,200. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 287K

17.33% 3M change

12.74% 12M change

Total Value Held $6.82 Million

Sean Patrick Buckley Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Sep 09 2025	SELL Open market or private sale	$492,200 $24.61 p/Share	20,000 Reduced 6.51%	287,193 Common Stock
Sep 08 2025	SELL Open market or private sale	$511,200 $25.56 p/Share	20,000 Reduced 6.11%	307,193 Common Stock
Aug 19 2025	SELL Open market or private sale	$218,157 $23.42 p/Share	9,315 Reduced 2.77%	327,193 Common Stock
Aug 18 2025	SELL Open market or private sale	$259,631 $23.85 p/Share	10,886 Reduced 3.13%	336,508 Common Stock
May 16 2025	SELL Open market or private sale	$152,455 $15.73 p/Share	9,692 Reduced 2.71%	347,394 Common Stock
May 15 2025	SELL Payment of exercise price or tax liability	$238,978 $15.88 p/Share	15,049 Reduced 4.04%	357,086 Common Stock
Feb 19 2025	SELL Open market or private sale	$201,381 $19.13 p/Share	10,527 Reduced 2.76%	370,558 Common Stock
Feb 15 2025	SELL Payment of exercise price or tax liability	$548,880 $20.0 p/Share	27,444 Reduced 6.72%	381,085 Common Stock
Feb 07 2025	SELL Open market or private sale	$373,860 $20.0 p/Share	18,693 Reduced 4.38%	408,529 Common Stock
Jan 09 2025	BUY Grant, award, or other acquisition	-	123,479 Added 22.42%	427,222 Common Stock
Nov 18 2024	SELL Open market or private sale	$156,015 $15.6 p/Share	10,001 Reduced 3.19%	303,743 Common Stock
Nov 15 2024	SELL Payment of exercise price or tax liability	$160,608 $15.85 p/Share	10,133 Reduced 3.13%	313,744 Common Stock
Nov 11 2024	SELL Open market or private sale	$78,630 $15.0 p/Share	5,242 Reduced 1.59%	323,877 Common Stock
Aug 20 2024	SELL Open market or private sale	$35,410 $13.5 p/Share	2,623 Reduced 0.79%	329,119 Common Stock
Aug 19 2024	SELL Open market or private sale	$32,866 $12.53 p/Share	2,623 Reduced 0.78%	331,742 Common Stock
Aug 15 2024	SELL Payment of exercise price or tax liability	$120,671 $12.51 p/Share	9,646 Reduced 2.8%	334,365 Common Stock
Jul 16 2024	SELL Open market or private sale	$303,862 $15.5 p/Share	19,604 Reduced 5.39%	344,011 Common Stock
Jul 15 2024	SELL Open market or private sale	$284,301 $14.5 p/Share	19,607 Reduced 5.12%	363,615 Common Stock
Jun 05 2024	SELL Open market or private sale	$292,315 $13.5 p/Share	21,653 Reduced 5.35%	383,222 Common Stock
May 24 2024	SELL Open market or private sale	$33,525 $12.5 p/Share	2,682 Reduced 0.66%	404,875 Common Stock
May 16 2024	SELL Open market or private sale	$211,562 $12.5 p/Share	16,925 Reduced 3.99%	407,557 Common Stock
May 15 2024	SELL Payment of exercise price or tax liability	$92,188 $9.8 p/Share	9,407 Reduced 2.18%	421,210 Common Stock
Feb 15 2024	SELL Payment of exercise price or tax liability	$234,831 $9.74 p/Share	24,110 Reduced 5.3%	430,617 Common Stock
Jan 02 2024	BUY Grant, award, or other acquisition	-	142,276 Added 23.83%	454,727 Common Stock
Nov 15 2023	SELL Payment of exercise price or tax liability	$40,065 $7.89 p/Share	5,078 Reduced 1.6%	312,451 Common Stock

SPB

Sean Patrick Buckley

President, Revenue

Newyork, NY

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