Great Lakes Advisors’s Magnite MGNI Stock Holding History

Great Lakes Advisors’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	$3.35M	Buy	+176,615	New	+$2.53M	0.03%	322
2023 Q2	–	Sell	-46,970	Closed	-$435K	–	815
2023 Q1	$435K	Buy	46,970 +237	+0.5%	+$2.52K	﹤0.01%	661
2022 Q4	$495K	Sell	46,733 -530	-1%	-$4.84K	0.03%	502
2022 Q3	$310K	Buy	47,263 +1,585	+3%	+$12.8K	0.01%	546
2022 Q2	$406K	Buy	+45,678	New	+$489K	0.01%	540

Other funds holding MGNI

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

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

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

Great Lakes Advisors's MGNI Position: Q2 2026 in Review

Great Lakes Advisors opened a new position in Magnite (MGNI) in Q2 2026: 176,615 shares worth $3.35M. The stake represents 0.03% of the portfolio and ranks #322 among its holdings. This is a return to the name: Great Lakes Advisors previously reported a position in MGNI as recently as Q1 2023.

Great Lakes Advisors first reported a position in MGNI in Q2 2022 and has held it in 5 quarters since. 311 funds tracked by Wall St. Rank hold MGNI as of Q2 2026.

Great Lakes Advisors held 176,615 shares of Magnite worth $3.35M as of Q2 2026.
Magnite was a new Great Lakes Advisors position in Q2 2026.
Magnite made up 0.03% of Great Lakes Advisors's portfolio in Q2 2026, its #322 holding.
Great Lakes Advisors first reported a position in Magnite in Q2 2022 and has held it in 5 quarters since.
311 funds tracked by Wall St. Rank held Magnite as of Q2 2026.

Based on Great Lakes Advisors's 13F filing for Q2 2026, filed 10 Aug 2026.