Skip to main content

Walleye Capital LLC

Position in MGNI — Magnite, Inc.

CIK 1758720 NEW YORK, NY

Position in MGNI

as of Mar 31, 2026 · filed May 13, 2026
Position Value
$90,680
-$324,110 QoQ
Shares Held
7,633
-70.1% QoQ
Ownership
0.005%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2022
14 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MGNI Over Time

Shares Held

Position Value (USD)

Derivatives in MGNI

reported options exposure · as of Mar 31, 2026
CallValue
$693,792
CallShares
58,400
PutValue
$463,320
PutShares
39,000

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, 2026

Walleye Capital LLC holds $4,114,457 across 4 Advertising Agencies names. MGNI ranks #4 (2.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 MGNI
Magnite, Inc.
This page
7,633 $90,680

All Filings in MGNI

Export CSV
31 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $90,680 7,633
2026-03-31 $463,320 39,000
2026-03-31 $693,792 58,400
2025-12-31 $414,790 25,557
2025-12-31 $1,011,129 62,300
2025-12-31 $921,864 56,800
2025-09-30 $1,402,632 64,400
2025-09-30 $1,173,942 53,900
2025-06-30 $74,772 3,100
2025-06-30 $137,484 5,700
2025-06-30 $626,348 25,968
2025-03-31 $322,903 28,300
2025-03-31 $397,068 34,800
2024-12-31 $380,488 23,900
2024-12-31 $577,896 36,300
2024-12-31 $606,074 38,070
2024-09-30 $1,100,978 79,493
2024-09-30 $270,075 19,500
2024-09-30 $649,565 46,900
2024-06-30 $43,857 3,300
2024-06-30 $835,701 62,882
2024-06-30 $77,082 5,800
2024-03-31 $132,225 12,300
2023-12-31 $192,404 20,600
2023-09-30 $190,038 25,204
2023-09-30 $754 100
2023-09-30 $116,870 15,500
2023-03-31 $107,490 11,608
2022-09-30 $1,557,871 237,119
2022-09-30 $2,628 400
2022-06-30 $734,660 82,732