Alyeska Investment Group, L.P.

Position in MGNI — Magnite, Inc.

CIK 1453072 CHICAGO, IL

Position in MGNI

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$6,203,404

New position

Shares Held

326,839

first reported quarter

Ownership

0.228%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#63

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

Alyeska Investment Group, L.P. holds $221,659,742 across 3 Advertising Agencies names. MGNI ranks #3 (2.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TTD	Trade Desk, Inc.	11,119,709	$201,044,338
2	LFTO	Liftoff Mobile, Inc.	600,000	$14,412,000
3	MGNI	Magnite, Inc. This page	326,839	$6,203,404

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$6,203,404	326,839	—	Shares	Sole	2026-08-14
No filing history on record for this holder in this stock.