Skip to main content

GAMCO INVESTORS, INC. ET AL

Position in MGNI — Magnite, Inc.

CIK 807249 GREENWICH, CT

Position in MGNI

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$720,557
-$1,337 QoQ
Shares Held
60,653
+36.4% QoQ
Ownership
0.042%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2024
8 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in MGNI Over Time

Shares Held

Position Value (USD)

Position in Advertising Agencies

Communication Services · as of Mar 31, 2026

GAMCO INVESTORS, INC. ET AL holds $39,647,827 across 5 Advertising Agencies names. MGNI ranks #5 (1.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 MGNI
Magnite, Inc.
This page
60,653 $720,557

All Filings in MGNI

Export CSV
8 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $720,557 60,653
2025-12-31 $721,894 44,479
2025-09-30 $1,229,894 56,469
2025-06-30 $1,437,141 59,583
2025-03-31 $898,948 78,786
2024-12-31 $1,347,341 84,632
2024-09-30 $1,022,587 73,833
2024-06-30 $590,833 44,457