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SBI Securities Co., Ltd.

Broker-Dealer

Position in MGNI — Magnite, Inc.

CIK 1851815 TOKYO, M0

Position in MGNI

as of Jun 30, 2026 · filed Jul 23, 2026
Position Value
$24,218
+$16,152 QoQ
Shares Held
1,276
+87.9% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#26
of 42 holders
Holding Since
Dec 2024
7 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MGNI Over Time

Shares Held

Position Value (USD)

Position in Advertising Agencies

Communication Services · as of Jun 30, 2026

SBI Securities Co., Ltd. holds $2,210,591 across 20 Advertising Agencies names. MGNI ranks #4 (1.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 MGNI
Magnite, Inc.
This page
1,276 $24,218

All Filings in MGNI

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $24,218 1,276
2026-03-31 $8,066 679
2025-12-31 $13,714 845
2025-09-30 $18,033 828
2025-06-30 $33,647 1,395
2025-03-31 $16,019 1,404
2024-12-31 $24,596 1,545