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Quarry LP’s Magnite MGNI Stock Holding History

Quarry LP’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 		$1.69K Buy
+89
New +$1.27K ﹤0.01% 1732
2025
Q4 		– Sell
-99
Closed -$2.16K – 2429
2025
Q3 		$2.16K Buy
+99
New +$2.34K ﹤0.01% 1970
2025
Q2 		– Sell
-1,872
Closed -$21.4K – 1930
2025
Q1 		$21.4K Buy
+1,872
New +$29.8K ﹤0.01% 1094
2024
Q4 		– Sell
-5,517
Closed -$76.4K – 1870
2024
Q3 		$76.4K Buy
5,517
+4,508
+447% +$61.4K 0.02% 534
2024
Q2 		$13.4K Sell
1,009
-5,075
-83% -$55.5K ﹤0.01% 1224
2024
Q1 		$65.4K Buy
6,084
+3,352
+123% +$33.5K 0.01% 348
2023
Q4 		$25.5K Sell
2,732
-810
-23% -$6.4K ﹤0.01% 631
2023
Q3 		$26.7K Buy
+3,542
New +$38.2K 0.01% 569
2023
Q2 		– Sell
-361
Closed -$3.34K – 1245
2023
Q1 		$3.34K Buy
+361
New +$3.85K ﹤0.01% 976

Other funds holding MGNI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
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
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

Quarry LP's MGNI Position: Q2 2026 in Review

Quarry LP opened a new position in Magnite (MGNI) in Q2 2026: 89 shares worth $1.69K. The stake represents ﹤0.01% of the portfolio and ranks #1732 among its holdings. This is a return to the name: Quarry LP previously reported a position in MGNI as recently as Q3 2025.

Quarry LP first reported a position in MGNI in Q1 2023 and has held it in 9 quarters since. The position peaked at $76.4K in Q3 2024. 311 funds tracked by Wall St. Rank hold MGNI as of Q2 2026.

  • Quarry LP held 89 shares of Magnite worth $1.69K as of Q2 2026.
  • Magnite was a new Quarry LP position in Q2 2026.
  • Magnite made up ﹤0.01% of Quarry LP's portfolio in Q2 2026, its #1732 holding.
  • Quarry LP first reported a position in Magnite in Q1 2023 and has held it in 9 quarters since.
  • Quarry LP's Magnite position peaked at $76.4K in Q3 2024.
  • 311 funds tracked by Wall St. Rank held Magnite as of Q2 2026.

Based on Quarry LP's 13F filing for Q2 2026, filed 14 Aug 2026.