Position in MGNI
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$54,966,574
-$30,840,267 QoQ
Shares Held
4,626,816
-12.5% QoQ
Ownership
3.23%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2022
13 quarters on record
Voting authority
Sole 80.10837258278696.ToString("F0")%
Shared 19.891627417213048.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, 2026AMERICAN CENTURY COMPANIES INC holds $519,641,479 across 14 Advertising Agencies names. MGNI ranks #2 (10.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | APP |
AppLovin Corp
|
991,256 | $394,519,888 | |
| 2 | MGNI |
Magnite, Inc.
This page
|
4,626,816 | $54,966,574 | |
| 3 | EVC |
Entravision Communications Corp
|
9,160,711 | $27,207,311 | |
| 4 | CRTO |
Criteo S.A.
|
1,385,281 | $24,838,088 | |
| 5 | TSQ |
Townsquare Media, Inc.
|
827,734 | $4,494,595 | |
| 6 | ZD |
Ziff Davis, Inc.
|
78,680 | $3,301,412 | |
| 7 | DV |
DoubleVerify Holdings, Inc.
|
302,899 | $2,877,540 | |
| 8 | OMC |
Omnicom Group Inc.
|
33,993 | $2,560,012 |
All Filings in MGNI
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13 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $54,966,574 | 4,626,816 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $85,806,841 | 5,286,928 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $100,058,844 | 4,594,070 | Shares | Defined | 2025-11-12 | |
| 2025-06-30 | $116,480,231 | 4,829,197 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $33,785,112 | 2,961,009 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $4,934,817 | 309,976 | Shares | Defined | 2025-02-11 | |
| 2024-09-30 | $4,050,169 | 292,431 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $3,287,268 | 247,349 | Shares | Defined | 2024-08-07 | |
| 2024-03-31 | $2,311,411 | 215,015 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $1,530,620 | 163,878 | Shares | Defined | 2024-02-13 | |
| 2023-06-30 | $955,431 | 69,995 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $347,870 | 37,567 | Shares | Defined | 2023-05-11 | |
| 2022-12-31 | $148,397 | 14,013 | Shares | Defined | 2023-02-13 | |
| No filing history on record for this holder in this stock. | ||||||