Rockefeller Capital Management
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Rockefeller Capital Management’s Magnite MGNI Stock Holding History

Rockefeller Capital Management’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 		$56.8K Sell
4,782
-3,620
-43% -$48.5K ﹤0.01% 3204
2025
Q4 		$136K Buy
8,402
+7,136
+564% +$118K ﹤0.01% 2563
2025
Q3 		$27.6K Buy
+1,266
New +$29.9K ﹤0.01% 3191
2023
Q1 		– Sell
-3,057
Closed -$31K – 3127
2022
Q4 		$31K Buy
3,057
+921
+43% +$8.41K ﹤0.01% 2616
2022
Q3 		$13K Sell
2,136
-63
-3% -$507 ﹤0.01% 2969
2022
Q2 		$19K Sell
2,199
-76
-3% -$814 ﹤0.01% 2779
2022
Q1 		$29K Sell
2,275
-111
-5% -$1.5K ﹤0.01% 2567
2021
Q4 		$40K Sell
2,386
-174
-7% -$3.92K ﹤0.01% 2319
2021
Q3 		$71K Hold
2,560
– – ﹤0.01% 1992
2021
Q2 		$85K Buy
2,560
+160
+7% +$5.42K ﹤0.01% 1864
2021
Q1 		$99K Buy
2,400
+189
+9% +$8.19K ﹤0.01% 1599
2020
Q4 		$66K Buy
+2,211
New +$33.5K ﹤0.01% 1592

Other funds holding MGNI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Wellington Management Group
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
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return

Rockefeller Capital Management's MGNI Position: Q1 2026 in Review

Rockefeller Capital Management reduced its Magnite (MGNI) stake by 43% in Q1 2026, selling an estimated $48.5K and leaving 4,782 shares worth $56.8K. The position accounts for ﹤0.01% of the portfolio, ranked #3204.

Rockefeller Capital Management first reported a position in MGNI in Q4 2020 and has held it in 12 quarters since. The position peaked at $136K in Q4 2025. 297 funds tracked by Wall St. Rank hold MGNI as of Q1 2026.

  • Rockefeller Capital Management held 4,782 shares of Magnite worth $56.8K as of Q1 2026.
  • Rockefeller Capital Management sold 3,620 Magnite shares in Q1 2026, an estimated $48.5K.
  • Magnite made up ﹤0.01% of Rockefeller Capital Management's portfolio in Q1 2026, its #3204 holding.
  • Rockefeller Capital Management first reported a position in Magnite in Q4 2020 and has held it in 12 quarters since.
  • Rockefeller Capital Management's Magnite position peaked at $136K in Q4 2025.
  • 297 funds tracked by Wall St. Rank held Magnite as of Q1 2026.

Based on Rockefeller Capital Management's 13F filing for Q1 2026, filed 14 May 2026.