Skip to main content

PICTON MAHONEY ASSET MANAGEMENT

Position in MGNI — Magnite, Inc.

CIK 1539041 Toronto, A6

Position in MGNI

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$13,124,119
+$5,484,353 QoQ
Shares Held
691,471
+7.5% QoQ
Ownership
0.482%
of shares outstanding
% of Portfolio
0.13%
of 13F equity value
Holder Rank
#41
of 306 holders
Holding Since
Jun 2021
6 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 Jun 30, 2026
CallValue
$14,235,000
CallShares
750,000
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 Jun 30, 2026

PICTON MAHONEY ASSET MANAGEMENT holds $13,177,235 across 4 Advertising Agencies names. MGNI ranks #1 (99.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MGNI
Magnite, Inc.
This page
691,471 $13,124,119

All Filings in MGNI

Export CSV
7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $14,235,000 750,000
2026-06-30 $13,124,119 691,471
2026-03-31 $7,639,766 643,078
2025-12-31 $6,299,366 388,131
2025-09-30 $8,436,090 387,332
2025-06-30 $3,083,742 127,850
2021-06-30 $115,056 3,400