Walleye Capital’s Magnite MGNI Stock Holding History

Walleye Capital’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	$90.7K	Sell	7,633 -17,924	-70%	-$240K	﹤0.01%	3705
2025 Q4	$415K	Buy	+25,557	New	+$424K	﹤0.01%	3072
2025 Q3	–	Sell	-25,968	Closed	-$613K	–	4874
2025 Q2	$626K	Buy	+25,968	New	+$383K	﹤0.01%	2449
2025 Q1	–	Sell	-38,070	Closed	-$607K	–	4768
2024 Q4	$606K	Sell	38,070 -41,423	-52%	-$608K	﹤0.01%	2837
2024 Q3	$1.1M	Buy	79,493 +16,611	+26%	+$226K	﹤0.01%	2561
2024 Q2	$836K	Buy	+62,882	New	+$687K	﹤0.01%	3030
2023 Q4	–	Sell	-25,204	Closed	-$199K	–	5291
2023 Q3	$190K	Buy	+25,204	New	+$272K	﹤0.01%	3587
2023 Q2	–	Sell	-11,608	Closed	-$107K	–	4659
2023 Q1	$107K	Buy	+11,608	New	+$124K	﹤0.01%	2888
2022 Q4	–	Sell	-237,119	Closed	-$1.56M	–	3454
2022 Q3	$1.56M	Buy	237,119 +154,387	+187%	+$1.24M	0.03%	693
2022 Q2	$735K	Buy	+82,732	New	+$887K	0.02%	809
2018 Q3	$211K	Buy	+58,734	New	+$208K	0.1%	214

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

Walleye Capital's MGNI Position: Q1 2026 in Review

Walleye Capital reduced its Magnite (MGNI) stake by 70% in Q1 2026, selling an estimated $240K and leaving 7,633 shares worth $90.7K. The position accounts for ﹤0.01% of the portfolio, ranked #3705.

Walleye Capital first reported a position in MGNI in Q3 2018 and has held it in 11 quarters since. The position peaked at $1.56M in Q3 2022. 297 funds tracked by Wall St. Rank hold MGNI as of Q1 2026.

Walleye Capital held 7,633 shares of Magnite worth $90.7K as of Q1 2026.
Walleye Capital sold 17,924 Magnite shares in Q1 2026, an estimated $240K.
Magnite made up ﹤0.01% of Walleye Capital's portfolio in Q1 2026, its #3705 holding.
Walleye Capital first reported a position in Magnite in Q3 2018 and has held it in 11 quarters since.
Walleye Capital's Magnite position peaked at $1.56M in Q3 2022.
297 funds tracked by Wall St. Rank held Magnite as of Q1 2026.

Based on Walleye Capital's 13F filing for Q1 2026, filed 11 May 2026.