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JANUS HENDERSON GROUP PLC

Position in MGNI — Magnite, Inc.

CIK 1274173 LONDON, X0

Position in MGNI

as of Mar 31, 2026 · filed May 18, 2026
Position Value
$694,065
-$254,140 QoQ
Shares Held
58,423
0.0% QoQ
Ownership
0.041%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2021
19 quarters on record
Voting authority Sole 0.ToString("F0")% Shared 0.ToString("F0")% None 100.ToString("F0")%

Common Shares in MGNI Over Time

Shares Held

Position Value (USD)

Position in Advertising Agencies

Communication Services · as of Mar 31, 2026

JANUS HENDERSON GROUP PLC holds $915,361,941 across 10 Advertising Agencies names. MGNI ranks #6 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
6 MGNI
Magnite, Inc.
This page
58,423 $694,065

All Filings in MGNI

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19 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $694,065 58,423
2025-12-31 $948,205 58,423
2025-09-30 $1,272,452 58,423
2025-06-30 $1,409,162 58,423
2025-03-31 $666,606 58,423
2024-12-31 $930,094 58,423
2024-09-30 $809,158 58,423
2024-06-30 $776,441 58,423
2024-03-31 $634,765 59,048
2023-12-31 $551,432 59,040
2023-09-30 $445,839 59,130
2023-06-30 $806,959 59,118
2023-03-31 $548,654 59,250
2022-12-31 $237,321 22,410
2022-09-30 $147,240 22,411
2022-06-30 $198,804 22,388
2022-03-31 $295,837 22,395
2021-12-31 $391,772 22,387
2021-09-30 $311,052 11,109