Canada Pension Plan Investment Board’s Magnite MGNI Stock Holding History

Canada Pension Plan Investment Board’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 Q2	$56.8M	Buy	2,995,093 +2,949,041	+6,404%	+$42.2M	0.03%	372
2026 Q1	$547K	Buy	46,052 +27,600	+150%	+$370K	﹤0.01%	1209
2025 Q4	$299K	Buy	18,452 +15,652	+559%	+$260K	﹤0.01%	1517
2025 Q3	$61K	Buy	+2,800	New	+$66.1K	﹤0.01%	1237
2023 Q1	–	Sell	-5,386	Closed	-$57K	–	1154
2022 Q4	$57K	Hold	5,386	–	–	﹤0.01%	1066
2022 Q3	$35K	Hold	5,386	–	–	﹤0.01%	1136
2022 Q2	$48K	Sell	5,386 -520,000	-99%	-$5.57M	﹤0.01%	1181
2022 Q1	$6.94M	Buy	+525,386	New	+$7.08M	0.01%	554
2020 Q1	–	Sell	-164,200	Closed	-$1.34M	–	1408
2019 Q4	$1.34M	Buy	+164,200	New	+$1.35M	﹤0.01%	962
2019 Q2	–	Sell	-5,840	Closed	-$36K	–	1386
2019 Q1	$36K	Buy	+5,840	New	+$30.1K	﹤0.01%	1335

Other funds holding MGNI

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 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

Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

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

Canada Pension Plan Investment Board's MGNI Position: Q2 2026 in Review

Canada Pension Plan Investment Board increased its Magnite (MGNI) stake by 6,404% in Q2 2026, buying an estimated $42.2M and bringing the position to 2,995,093 shares worth $56.8M. The position accounts for 0.03% of the portfolio, ranked #372.

Canada Pension Plan Investment Board first reported a position in MGNI in Q1 2019 and has held it in 10 quarters since. 311 funds tracked by Wall St. Rank hold MGNI as of Q2 2026.

Canada Pension Plan Investment Board held 2,995,093 shares of Magnite worth $56.8M as of Q2 2026.
Canada Pension Plan Investment Board bought 2,949,041 Magnite shares in Q2 2026, an estimated $42.2M.
Magnite made up 0.03% of Canada Pension Plan Investment Board's portfolio in Q2 2026, its #372 holding.
Canada Pension Plan Investment Board first reported a position in Magnite in Q1 2019 and has held it in 10 quarters since.
311 funds tracked by Wall St. Rank held Magnite as of Q2 2026.

Based on Canada Pension Plan Investment Board's 13F filing for Q2 2026, filed 14 Aug 2026.