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Which hedge funds own MGNI? MAGNITE INC, Q2 2026 13F holders

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5 of the hedge funds tracked by WhaleCreep disclosed a position in MGNI (MAGNITE INC) in their Q2 2026 13F filings, worth $30.7m in total. The largest holder by portfolio weight is Millennium Management at 0.0% of its book. 1 manager opened a new position this quarter: D. E. Shaw & Co. 2 exited: Brevan Howard Capital Management, Holocene Advisors.

5tracked managers holding
1opened this quarter
2exited this quarter

Which hedge funds hold MGNI? Current holders by portfolio weight

ManagerAs ofWeight of bookValueSharesΔ sharesAction
Millennium ManagementQ2 2026 0.0%$14.5m764,819 -38% reduced
Marshall WaceQ2 2026 0.0%$6.5m341,864 705% added
Citadel AdvisorsQ2 2026 0.0%$9.0m472,865 -55% reduced
D. E. Shaw & CoQ2 2026 0.0%$677.9k35,719 new
Ancora AdvisorsQ2 2026 0.0%$20911 0% held

Exited since the previous quarter

ManagerPrior weightPrior value
Brevan Howard Capital Management0.1%$1.6m
Holocene Advisors0.0%$1.2m

How has hedge fund ownership of MGNI changed?

QuarterManagers holdingCombined value
Q2 20265$30.7m
Q1 20267$31.3m
Q4 20254$3.2m
Q3 20254$19.6m
Q2 20251$265
Q4 20241$4.4m
Q3 20241$4.6m
Q2 20241$4.1m
Q1 20242$5.7m
Q4 20232$3.3m
Q3 20232$31.9m
Q2 20233$34.8m
Q1 20232$7.1m
Q4 20222$12.1m
Q3 20222$5.8m
Q2 20223$16.4m

Counts every tracked manager that disclosed MGNI in that quarter's filing, including managers that have since stopped filing.