MAGNITE, INC.

MGNINASDAQ

$24.73-0.71 (-2.79%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

MAGNITE, INC. price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+22.9%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	8.87%	$241M	0.00%	Not reported
Vanguard Portfolio Management LLC	5.72%	$156M	0.01%	Not reported
FMR LLC	5.41%	$147M	0.01%	Not reported
Vanguard Capital Management LLC	4.34%	$118M	0.00%	Not reported
Wellington Management Group LLP	4.22%	$115M	0.02%	Reduce 34.24%
Dimensional Fund Advisors LP	3.67%	$99.8M	0.02%	Not reported
American Century Companies Inc	3.22%	$87.7M	0.04%	Not reported
Capital Research Global Investors	2.70%	$73.4M	0.01%	Not reported
Nuveen, LLC	2.65%	$72M	0.02%	Not reported
Geode Capital Management, LLC	2.64%	$71.9M	0.00%	Not reported
Edenbrook Capital, LLC	2.48%	$67.5M	13.60%	Add 27.08%
State Street Corp	2.46%	$67M	0.00%	Not reported
325 Capital LLC	2.38%	$64.8M	15.44%	Add 70.18%
Nine Ten Capital Management LLC	2.27%	$61.9M	19.26%	Reduce 6.32%
Granahan Investment Management, LLC	2.15%	$58.5M	2.09%	Not reported
Canada Pension Plan Investment Board	2.09%	$56.8M	0.03%	Add 6403.72%
Jane Street Group, LLC	1.53%	$41.7M	0.00%	Not reported
Park West Asset Management LLC	1.39%	$38M	2.59%	Add 234.24%
Morgan Stanley	1.39%	$37.8M	0.00%	Not reported
Qube Research & Technologies Ltd	1.36%	$37.1M	0.03%	Not reported
Blue Grotto Capital, LLC	1.19%	$32.4M	2.70%	Add 28.44%
Kennedy Capital Management LLC	1.16%	$31.6M	0.56%	Reduce 4.95%
Northern Trust Corp	1.08%	$29.5M	0.00%	Not reported
Royce & Associates LP	1.03%	$28M	0.23%	Not reported
Goldman Sachs Group Inc	1.02%	$27.8M	0.00%	Not reported
Ophir Asset Management Pty Ltd	1.01%	$27.5M	2.26%	Reduce 31.54%
First Eagle Investment Management, LLC	0.94%	$25.5M	0.02%	Add 197.94%
Victory Capital Management Inc	0.86%	$23.4M	0.01%	Not reported
Charles Schwab Investment Management Inc	0.84%	$22.8M	0.00%	Not reported
Bank of America Corp	0.82%	$22.4M	0.00%	Not reported
Grizzlyrock Capital, LLC	0.81%	$22.1M	15.46%	Reduce 5.98%
Bank of New York Mellon Corp	0.81%	$22.1M	0.00%	Not reported
Maestria Partners LLC	0.81%	$22M	7.65%	Reduce 15.04%
Meros Investment Management, LP	0.69%	$18.8M	5.97%	Reduce 0.10%
Vanguard Fiduciary Trust Co	0.69%	$18.8M	0.00%	Not reported
Millennium Management LLC	0.53%	$14.5M	0.01%	Not reported
UBS Group AG	0.52%	$14.2M	0.00%	Not reported
Oberweis Asset Management Inc/	0.51%	$14M	0.29%	Add 13.50%
Silvercrest Asset Management Group LLC	0.49%	$13.4M	0.09%	Add 14.88%
Picton Mahoney Asset Management	0.48%	$13.1M	0.10%	Add 7.53%
Kopion Asset Management, LLC	0.47%	$12.8M	8.09%	Reduce 21.20%
Balyasny Asset Management L.P.	0.46%	$12.7M	0.02%	Not reported
Ameriprise Financial Inc	0.43%	$11.8M	0.00%	Not reported
S Squared Technology, LLC	0.40%	$10.8M	3.34%	Add 40.96%
Schonfeld Strategic Advisors LLC	0.39%	$10.7M	0.04%	Not reported
Nomura Asset Management Co Ltd	0.39%	$10.5M	0.02%	Reduce 6.74%
Bank of Montreal	0.37%	$10.1M	0.00%	Not reported
King Luther Capital Management Corp	0.35%	$9.56M	0.04%	Reduce 5.18%
Principal Financial Group Inc	0.35%	$9.44M	0.00%	Not reported
EVR Research LP	0.33%	$9.11M	4.50%	New Not reported

50 of 296 holders

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