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Magnetar Financial’s Comcast CMCSA Stock Holding History

Magnetar Financial’s Portfolio CMCSA Stock Details CMCSA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$442K Sell
15,305
-71,383
-82% -$2.14M ﹤0.01% 657
2025
Q4 		$2.59M Sell
86,688
-199,941
-70% -$5.71M 0.03% 311
2025
Q3 		$9.01M Sell
286,629
-647
-0.2% -$21.7K 0.05% 126
2025
Q2 		$10.3M Buy
287,276
+259,644
+940% +$8.98M 0.05% 106
2025
Q1 		$1.02M Sell
27,632
-129,503
-82% -$4.67M 0.01% 337
2024
Q4 		$5.9M Buy
+157,135
New +$6.52M 0.14% 113
2024
Q2 		– Sell
-103,661
Closed -$4.49M – 516
2024
Q1 		$4.49M Buy
103,661
+7,385
+8% +$319K 0.1% 104
2023
Q4 		$4.22M Buy
+96,276
New +$4.13M 0.11% 121
2023
Q3 		– Sell
-69,106
Closed -$2.87M – 473
2023
Q2 		$2.87M Buy
+69,106
New +$2.74M 0.06% 172
2021
Q3 		– Sell
-5,002
Closed -$285 – 1339
2021
Q2 		$285 Buy
+5,002
New +$280K ﹤0.01% 1039
2021
Q1 		– Sell
-43,341
Closed -$2.27M – 1067
2020
Q4 		$2.27M Buy
+43,341
New +$2.08M 0.03% 337
2017
Q4 		– Sell
-179,500
Closed -$6.91M – 729
2017
Q3 		$6.91M Sell
179,500
-385,478
-68% -$15.2M 0.13% 90
2017
Q2 		$22M Buy
564,978
+519,482
+1,142% +$20.5M 0.34% 65
2017
Q1 		$1.71M Buy
+45,496
New +$1.69M 0.02% 210
2016
Q4 		– Sell
-176,892
Closed -$5.87M – 89
2016
Q3 		$5.87M Buy
+176,892
New +$5.89M 0.08% 114
2016
Q2 		– Sell
-1,160,176
Closed -$35.4M – 389
2016
Q1 		$35.4M Buy
+1,160,176
New +$33.3M 0.55% 53
2015
Q4 		– Sell
-300,000
Closed -$8.53M – 373
2015
Q3 		$8.53M Buy
+300,000
New +$8.91M 0.11% 92
2014
Q2 		– Sell
-375,018
Closed -$9.38M – 186
2014
Q1 		$9.38M Buy
+375,018
New +$9.77M 0.19% 95
2013
Q4 		– Sell
-30,648
Closed -$692K – 252
2013
Q3 		$692K Buy
30,648
+7,192
+31% +$157K 0.01% 345
2013
Q2 		$491K Buy
+23,456
New +$484K 0.01% 303

Other funds holding CMCSA

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Magnetar Financial's CMCSA Position: Q1 2026 in Review

Magnetar Financial reduced its Comcast (CMCSA) stake by 82% in Q1 2026, selling an estimated $2.14M and leaving 15,305 shares worth $442K. The position accounts for ﹤0.01% of the portfolio, ranked #657.

Magnetar Financial first reported a position in CMCSA in Q2 2013 and has held it in 20 quarters since. The position peaked at $35.4M in Q1 2016. 2,042 funds tracked by Wall St. Rank hold CMCSA as of Q1 2026.

  • Magnetar Financial held 15,305 shares of Comcast worth $442K as of Q1 2026.
  • Magnetar Financial sold 71,383 Comcast shares in Q1 2026, an estimated $2.14M.
  • Comcast made up ﹤0.01% of Magnetar Financial's portfolio in Q1 2026, its #657 holding.
  • Magnetar Financial first reported a position in Comcast in Q2 2013 and has held it in 20 quarters since.
  • Magnetar Financial's Comcast position peaked at $35.4M in Q1 2016.
  • 2,042 funds tracked by Wall St. Rank held Comcast as of Q1 2026.

Based on Magnetar Financial's 13F filing for Q1 2026, filed 13 May 2026.