Position in MGNI
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$66,278
+$63,097 QoQ
Shares Held
5,579
+2746.4% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2024
8 quarters on record
Voting authority
Sole 0.ToString("F0")%
Shared 100.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, 2026Optiver Holding B.V. holds $3,526,510 across 9 Advertising Agencies names. MGNI ranks #2 (1.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TTD |
Trade Desk, Inc.
|
151,557 | $3,438,828 | |
| 2 | MGNI |
Magnite, Inc.
This page
|
5,579 | $66,278 | |
| 3 | CCO |
Clear Channel Outdoor Holdings, Inc.
|
3,399 | $8,055 | |
| 4 | STGW |
Stagwell Inc
|
774 | $4,868 | |
| 5 | NCMI |
National CineMedia, Inc.
|
1,216 | $3,708 | |
| 6 | NEXN |
Nexxen International Ltd.
|
312 | $2,034 | |
| 7 | QNST |
Quinstreet, Inc
|
94 | $1,128 | |
| 8 | TSQ |
Townsquare Media, Inc.
|
174 | $944 |
All Filings in MGNI
Export CSV
8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $66,278 | 5,579 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $3,181 | 196 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $9,234 | 424 | Shares | Defined | 2025-11-10 | |
| 2025-06-30 | $14,279 | 592 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $6,754 | 592 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $9,424 | 592 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $2,811 | 203 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $23,177 | 1,744 | Shares | Defined | 2024-08-14 | |
| No filing history on record for this holder in this stock. | ||||||