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Massar Capital Management’s Magnite MGNI Stock Holding History

Massar 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
2025
Q3 		– Sell
-11,000
Closed -$265K – 197
2025
Q2 		$265K Sell
11,000
-21,144
-66% -$311K 0.2% 92
2025
Q1 		$367K Buy
+32,144
New +$513K 0.41% 62

Other funds holding MGNI

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
GIM
Granahan Investment Management Waltham, Massachusetts $2.07B AUM 56.45% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Massar Capital Management's MGNI Position: Q3 2025 in Review

Massar Capital Management sold out of Magnite (MGNI) in Q3 2025, closing a stake of 11,000 shares — an estimated $265K sold.

Massar Capital Management first reported a position in MGNI in Q1 2025 and held it in 2 quarters. The position peaked at $367K in Q1 2025. 316 funds tracked by Wall St. Rank hold MGNI as of Q3 2025.

  • Massar Capital Management reported no remaining Magnite position as of Q3 2025 after selling out during the quarter.
  • Massar Capital Management sold 11,000 Magnite shares in Q3 2025, an estimated $265K.
  • Massar Capital Management first reported a position in Magnite in Q1 2025 and held it in 2 quarters.
  • Massar Capital Management's Magnite position peaked at $367K in Q1 2025.
  • 316 funds tracked by Wall St. Rank held Magnite as of Q3 2025.

Based on Massar Capital Management's 13F filing for Q3 2025, filed 14 Nov 2025.