Cornerstone Financial Management LLC

Position in MGNI — Magnite, Inc.

CIK 2110329 PROVIDENCE, RI

Position in MGNI

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$645

New position

Shares Held

first reported quarter

Ownership

0.000%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#287

of 304 holders

Holding Since

Jun 2026

1 quarter on record

Voting authority Sole 100% Shared 0% None 0%

Communication Services · as of Jun 30, 2026

Cornerstone Financial Management LLC holds $24,687 across 7 Advertising Agencies names. MGNI ranks #5 (2.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	APP	AppLovin Corp	38	$19,578
2	TTD	Trade Desk, Inc.	88	$1,591
3	OMC	Omnicom Group Inc.	14	$1,019
4	WPP	WPP plc	56	$867
5	MGNI	Magnite, Inc. This page	34	$645
6	DV	DoubleVerify Holdings, Inc.	49	$531
7	LFTO	Liftoff Mobile, Inc.	19	$456

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$645	34	—	Shares	Sole	2026-08-12
No filing history on record for this holder in this stock.