Capital Research Global Investors
MGNI icon

Capital Research Global Investors’s Magnite MGNI Stock Holding History

Capital Research Global Investors’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 		$73.4M Sell
3,869,159
-1,151,130
-23% -$16.5M 0.01% 322
2026
Q1 		$59.6M Sell
5,020,289
-7,900,000
-61% -$106M 0.01% 344
2025
Q4 		$210M Buy
12,920,289
+5,937,428
+85% +$98.6M 0.04% 226
2025
Q3 		$152M Sell
6,982,861
-5,937,209
-46% -$140M 0.03% 254
2025
Q2 		$312M Hold
12,920,070
– – 0.06% 177
2025
Q1 		$147M Buy
12,920,070
+5,194,835
+67% +$82.8M 0.03% 254
2024
Q4 		$123M Buy
+7,725,235
New +$113M 0.03% 278

Other funds holding MGNI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
EC
Edenbrook Capital Mt. Kisco, New York $496M AUM 53.85% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Capital Research Global Investors's MGNI Position: Q2 2026 in Review

Capital Research Global Investors reduced its Magnite (MGNI) stake by 23% in Q2 2026, selling an estimated $16.5M and leaving 3,869,159 shares worth $73.4M. The position accounts for 0.01% of the portfolio, ranked #322.

Capital Research Global Investors first reported a position in MGNI in Q4 2024 and has held it in 7 quarters since. The position peaked at $312M in Q2 2025. 219 funds tracked by Wall St. Rank hold MGNI as of Q2 2026.

  • Capital Research Global Investors held 3,869,159 shares of Magnite worth $73.4M as of Q2 2026.
  • Capital Research Global Investors sold 1,151,130 Magnite shares in Q2 2026, an estimated $16.5M.
  • Magnite made up 0.01% of Capital Research Global Investors's portfolio in Q2 2026, its #322 holding.
  • Capital Research Global Investors first reported a position in Magnite in Q4 2024 and has held it in 7 quarters since.
  • Capital Research Global Investors's Magnite position peaked at $312M in Q2 2025.
  • 219 funds tracked by Wall St. Rank held Magnite as of Q2 2026.

Based on Capital Research Global Investors's 13F filing for Q2 2026, filed 12 Aug 2026.