BRF
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B. Riley Financial’s Magnite MGNI Stock Holding History

B. Riley Financial’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
2019
Q3 		– Sell
-589,055
Closed -$3.75M – 54
2019
Q2 		$3.75M Sell
589,055
-876,468
-60% -$5.38M 1.8% 12
2019
Q1 		$8.91M Sell
1,465,523
-283,237
-16% -$1.46M 3.47% 8
2018
Q4 		$6.52M Sell
1,748,760
-48,077
-3% -$184K 3.6% 11
2018
Q3 		$6.47M Sell
1,796,837
-255,561
-12% -$903K 1.84% 13
2018
Q2 		$5.85M Buy
2,052,398
+1,952,398
+1,952% +$4.65M 1.53% 12
2018
Q1 		$180K Buy
+100,000
New +$189K 0.05% 264
2017
Q4 		– Sell
-74,000
Closed -$288K – 330
2017
Q3 		$288K Buy
+74,000
New +$315K 0.08% 226
2016
Q1 		– Sell
-17,818
Closed -$293K – 136
2015
Q4 		$293K Buy
+17,818
New +$276K 0.21% 75

Other funds holding MGNI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
RA
Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
CPA
Cowen Prime Advisors New York $290M AUM 57.8% 1-Year Est. Return

B. Riley Financial's MGNI Position: Q3 2019 in Review

B. Riley Financial sold out of Magnite (MGNI) in Q3 2019, closing a stake of 589,055 shares — an estimated $3.75M sold.

B. Riley Financial first reported a position in MGNI in Q4 2015 and held it in 8 quarters. The position peaked at $8.91M in Q1 2019. 138 funds tracked by Wall St. Rank hold MGNI as of Q3 2019.

  • B. Riley Financial reported no remaining Magnite position as of Q3 2019 after selling out during the quarter.
  • B. Riley Financial sold 589,055 Magnite shares in Q3 2019, an estimated $3.75M.
  • B. Riley Financial first reported a position in Magnite in Q4 2015 and held it in 8 quarters.
  • B. Riley Financial's Magnite position peaked at $8.91M in Q1 2019.
  • 138 funds tracked by Wall St. Rank held Magnite as of Q3 2019.

Based on B. Riley Financial's 13F filing for Q3 2019, filed 14 Nov 2019.