Quantinno Capital Management’s Magnite MGNI Stock Holding History

Quantinno Capital Management’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	$1.52M	Buy	128,133 +75,686	+144%	+$1.01M	﹤0.01%	1819
2025 Q4	$851K	Buy	52,447 +28,871	+122%	+$479K	﹤0.01%	1922
2025 Q3	$513K	Buy	23,576 +4,065	+21%	+$96K	﹤0.01%	1997
2025 Q2	$471K	Buy	+19,511	New	+$287K	﹤0.01%	1685
2021 Q1	–	Sell	-13,421	Closed	-$412K	–	296
2020 Q4	$412K	Buy	13,421 +2,452	+22%	+$37.1K	0.32%	137
2020 Q3	$76K	Buy	+10,969	New	+$73.3K	0.05%	372

Other funds holding MGNI

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

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

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return

Quantinno Capital Management's MGNI Position: Q1 2026 in Review

Quantinno Capital Management increased its Magnite (MGNI) stake by 144% in Q1 2026, buying an estimated $1.01M and bringing the position to 128,133 shares worth $1.52M. The position accounts for ﹤0.01% of the portfolio, ranked #1819.

Quantinno Capital Management first reported a position in MGNI in Q3 2020 and has held it in 6 quarters since. 297 funds tracked by Wall St. Rank hold MGNI as of Q1 2026.

Quantinno Capital Management held 128,133 shares of Magnite worth $1.52M as of Q1 2026.
Quantinno Capital Management bought 75,686 Magnite shares in Q1 2026, an estimated $1.01M.
Magnite made up ﹤0.01% of Quantinno Capital Management's portfolio in Q1 2026, its #1819 holding.
Quantinno Capital Management first reported a position in Magnite in Q3 2020 and has held it in 6 quarters since.
297 funds tracked by Wall St. Rank held Magnite as of Q1 2026.

Based on Quantinno Capital Management's 13F filing for Q1 2026, filed 15 May 2026.