MIM
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Meros Investment Management’s Magnite MGNI Stock Holding History

Meros Investment 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 		$11.8M Buy
992,351
+166,756
+20% +$2.24M 5.11% 5
2025
Q4 		$13.4M Buy
825,595
+211,767
+34% +$3.51M 5.31% 2
2025
Q3 		$13.4M Sell
613,828
-88,314
-13% -$2.09M 5.71% 3
2025
Q2 		$16.9M Sell
702,142
-47,296
-6% -$697K 8.04% 1
2025
Q1 		$8.55M Sell
749,438
-177,973
-19% -$2.84M 5.02% 4
2024
Q4 		$14.8M Sell
927,411
-114,984
-11% -$1.69M 6.61% 1
2024
Q3 		$14.4M Sell
1,042,395
-1,814
-0.2% -$24.7K 6.53% 1
2024
Q2 		$13.9M Buy
1,044,209
+13,570
+1% +$148K 6.56% 1
2024
Q1 		$11.1M Buy
1,030,639
+6,759
+0.7% +$67.5K 4.95% 3
2023
Q4 		$9.56M Buy
1,023,880
+185,418
+22% +$1.47M 4.54% 4
2023
Q3 		$6.32M Buy
838,462
+120,796
+17% +$1.3M 3.44% 12
2023
Q2 		$9.8M Buy
717,666
+94,411
+15% +$1.05M 4.86% 3
2023
Q1 		$5.77M Buy
623,255
+41,135
+7% +$438K 3.28% 12
2022
Q4 		$6.17M Buy
582,120
+198,168
+52% +$1.81M 3.64% 7
2022
Q3 		$2.52M Buy
383,952
+10,580
+3% +$85.1K 2.6% 20
2022
Q2 		$3.32M Buy
373,372
+46,304
+14% +$496K 3.08% 14
2022
Q1 		$4.32M Buy
327,068
+122,323
+60% +$1.65M 3.42% 12
2021
Q4 		$3.58M Buy
+204,745
New +$4.62M 2.62% 17

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

Meros Investment Management's MGNI Position: Q1 2026 in Review

Meros Investment Management increased its Magnite (MGNI) stake by 20% in Q1 2026, buying an estimated $2.24M and bringing the position to 992,351 shares worth $11.8M. The position accounts for 5.11% of the portfolio, ranked #5.

Meros Investment Management first reported a position in MGNI in Q4 2021 and has held it in 18 quarters since. The position peaked at $16.9M in Q2 2025. 296 funds tracked by Wall St. Rank hold MGNI as of Q1 2026.

  • Meros Investment Management held 992,351 shares of Magnite worth $11.8M as of Q1 2026.
  • Meros Investment Management bought 166,756 Magnite shares in Q1 2026, an estimated $2.24M.
  • Magnite made up 5.11% of Meros Investment Management's portfolio in Q1 2026, its #5 holding.
  • Meros Investment Management first reported a position in Magnite in Q4 2021 and has held it in 18 quarters since.
  • Meros Investment Management's Magnite position peaked at $16.9M in Q2 2025.
  • 296 funds tracked by Wall St. Rank held Magnite as of Q1 2026.

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