CIBC World Market’s Magnite MGNI Stock Holding History

CIBC World Market’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
2025 Q2	–	Sell	-65,543	Closed	-$748K	–	1443
2025 Q1	$748K	Buy	+65,543	New	+$1.05M	﹤0.01%	935
2024 Q4	–	Sell	-48,656	Closed	-$674K	–	1408
2024 Q3	$674K	Hold	48,656	–	–	﹤0.01%	913
2024 Q2	$647K	Hold	48,656	–	–	﹤0.01%	896
2024 Q1	$523K	Hold	48,656	–	–	﹤0.01%	975
2023 Q4	$454K	Sell	48,656 -140	-0.3%	-$1.11K	﹤0.01%	956
2023 Q3	$368K	Hold	48,796	–	–	﹤0.01%	985
2023 Q2	$666K	Hold	48,796	–	–	﹤0.01%	862
2023 Q1	$452K	Hold	48,796	–	–	﹤0.01%	950
2022 Q4	$517K	Hold	48,796	–	–	﹤0.01%	917
2022 Q3	$321K	Hold	48,796	–	–	﹤0.01%	996
2022 Q2	$433K	Sell	48,796 -1,350	-3%	-$14.5K	﹤0.01%	918
2022 Q1	$662K	Hold	50,146	–	–	﹤0.01%	853
2021 Q4	$878K	Sell	50,146 -55,236	-52%	-$1.25M	﹤0.01%	810
2021 Q3	$2.95M	Buy	105,382 +2,685	+3%	+$80.8K	0.01%	470
2021 Q2	$3.48M	Buy	102,697 +10,583	+11%	+$359K	0.01%	448
2021 Q1	$3.83M	Buy	+92,114	New	+$3.99M	0.01%	422

Other funds holding MGNI

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

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

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

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

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

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

GIM

Granahan Investment Management Waltham, Massachusetts $2.07B AUM 56.45% 1-Year Est. Return

Edenbrook Capital Mt. Kisco, New York $321M AUM 79.21% 1-Year Est. Return

CIBC World Market's MGNI Position: Q2 2025 in Review

CIBC World Market sold out of Magnite (MGNI) in Q2 2025, closing a stake of 65,543 shares — an estimated $748K sold.

CIBC World Market first reported a position in MGNI in Q1 2021 and held it in 16 quarters. The position peaked at $3.83M in Q1 2021. 286 funds tracked by Wall St. Rank hold MGNI as of Q2 2025.

CIBC World Market reported no remaining Magnite position as of Q2 2025 after selling out during the quarter.
CIBC World Market sold 65,543 Magnite shares in Q2 2025, an estimated $748K.
CIBC World Market first reported a position in Magnite in Q1 2021 and held it in 16 quarters.
CIBC World Market's Magnite position peaked at $3.83M in Q1 2021.
286 funds tracked by Wall St. Rank held Magnite as of Q2 2025.

Based on CIBC World Market's 13F filing for Q2 2025, filed 14 Aug 2025.