Natixis’s Magnite MGNI Stock Holding History

Natixis’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 Q1	$500K	Buy	+42,100	New	+$564K	﹤0.01%	813
2022 Q1	–	Sell	-19,000	Closed	-$332K	–	1261
2021 Q4	$332K	Buy	+19,000	New	+$428K	﹤0.01%	1113

Other funds holding MGNI

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

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 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

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

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

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

Natixis's MGNI Position: Q1 2026 in Review

Natixis opened a new position in Magnite (MGNI) in Q1 2026: 42,100 shares worth $500K. The stake represents ﹤0.01% of the portfolio and ranks #813 among its holdings. This is a return to the name: Natixis previously reported a position in MGNI as recently as Q4 2021.

Natixis first reported a position in MGNI in Q4 2021 and has held it in 2 quarters since. 296 funds tracked by Wall St. Rank hold MGNI as of Q1 2026.

Natixis held 42,100 shares of Magnite worth $500K as of Q1 2026.
Magnite was a new Natixis position in Q1 2026.
Magnite made up ﹤0.01% of Natixis's portfolio in Q1 2026, its #813 holding.
Natixis first reported a position in Magnite in Q4 2021 and has held it in 2 quarters since.
296 funds tracked by Wall St. Rank held Magnite as of Q1 2026.

Based on Natixis's 13F filing for Q1 2026, filed 14 May 2026.