IMC Chicago’s Magnite MGNI Stock Holding History

IMC Chicago’s Portfolio MGNI Stock Details MGNI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$636K	Buy	33,508 +5,734	+21%	+$82.1K	﹤0.01%	4374
2026 Q1	$330K	Sell	27,774 -105,322	-79%	-$1.41M	﹤0.01%	4479
2025 Q4	$2.16M	Buy	+133,096	New	+$2.21M	﹤0.01%	2351
2025 Q2	–	Sell	-39,631	Closed	-$584K	–	3475
2025 Q1	$452K	Sell	39,631 -36,779	-48%	-$586K	﹤0.01%	2730
2024 Q4	$1.22M	Buy	76,410 +2,317	+3%	+$34K	﹤0.01%	2234
2024 Q3	$1.03M	Sell	74,093 -11,943	-14%	-$163K	﹤0.01%	2039
2024 Q2	$1.14M	Buy	86,036 +58,715	+215%	+$642K	﹤0.01%	1880
2024 Q1	$294K	Sell	27,321 -2,950	-10%	-$29.5K	﹤0.01%	2245
2023 Q4	$283K	Buy	30,271 +3,118	+11%	+$24.6K	﹤0.01%	1747
2023 Q3	$205K	Buy	+27,153	New	+$293K	﹤0.01%	1585

Other funds holding MGNI

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

BGC

Blue Grotto Capital Atlanta, Georgia $1.2B AUM 48.81% 1-Year Est. Return

Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

Maestria Partners Atlanta, Georgia $288M AUM 13.77% 1-Year Est. Return

KAM

Kopion Asset Management Mckinney, Texas $158M AUM 11.93% 1-Year Est. Return

First Eagle Investment Management New York $59.9B AUM 27.01% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return

IMC Chicago's MGNI Position: Q2 2026 in Review

IMC Chicago increased its Magnite (MGNI) stake by 21% in Q2 2026, buying an estimated $82.1K and bringing the position to 33,508 shares worth $636K. The position accounts for ﹤0.01% of the portfolio, ranked #4374.

IMC Chicago first reported a position in MGNI in Q3 2023 and has held it in 10 quarters since. The position peaked at $2.16M in Q4 2025. 127 funds tracked by Wall St. Rank hold MGNI as of Q2 2026.

IMC Chicago held 33,508 shares of Magnite worth $636K as of Q2 2026.
IMC Chicago bought 5,734 Magnite shares in Q2 2026, an estimated $82.1K.
Magnite made up ﹤0.01% of IMC Chicago's portfolio in Q2 2026, its #4374 holding.
IMC Chicago first reported a position in Magnite in Q3 2023 and has held it in 10 quarters since.
IMC Chicago's Magnite position peaked at $2.16M in Q4 2025.
127 funds tracked by Wall St. Rank held Magnite as of Q2 2026.

Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.