Position in MGNI
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$142,928
-$148,200 QoQ
Shares Held
12,031
-0.3% QoQ
Ownership
0.008%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2020
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)
Derivatives in MGNI
reported options exposure · as of Jun 30, 2021CallValue
$280,872
CallShares
8,300
PutValue
$0
PutShares
0
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Advertising Agencies
Communication Services · as of Mar 31, 2026TWO SIGMA SECURITIES, LLC holds $5,698,868 across 10 Advertising Agencies names. MGNI ranks #5 (2.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | OMC |
Omnicom Group Inc.
|
31,873 | $2,400,355 | |
| 2 | TTD |
Trade Desk, Inc.
|
105,674 | $2,397,743 | |
| 3 | ZD |
Ziff Davis, Inc.
|
10,313 | $432,733 | |
| 4 | CCO |
Clear Channel Outdoor Holdings, Inc.
|
63,669 | $150,895 | |
| 5 | MGNI |
Magnite, Inc.
This page
|
12,031 | $142,928 | |
| 6 | NCMI |
National CineMedia, Inc.
|
21,668 | $66,087 | |
| 7 | EEX |
Emerald Holding, Inc.
|
11,499 | $51,860 | |
| 8 | CDLX |
Cardlytics, Inc.
|
31,624 | $33,205 |
All Filings in MGNI
Export CSV
8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $142,928 | 12,031 | Shares | Sole | 2026-05-15 | |
| 2025-06-30 | $291,128 | 12,070 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $281,313 | 24,655 | Shares | Sole | 2025-05-15 | |
| 2022-12-31 | $487,997 | 46,081 | Shares | Sole | 2023-02-14 | |
| 2022-06-30 | $140,250 | 15,794 | Shares | Sole | 2022-08-15 | |
| 2021-09-30 | $470,820 | 16,815 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $280,872 | 8,300 | Call | Sole | 2021-08-16 | |
| 2020-12-31 | $304,029 | 9,900 | Call | Sole | 2021-02-16 | |
| No filing history on record for this holder in this stock. | ||||||