Marathon Trading Investment Management’s Comcast CMCSA Stock Holding History

Marathon Trading Investment Management’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
2025 Q2	–	Sell	-4,200	Closed	-$155K	–	296
2025 Q1	$155K	Buy	+4,200	New	+$152K	0.02%	253
2023 Q4	–	Sell	-100	Closed	-$4.43K	–	377
2023 Q3	$4.43K	Buy	+100	New	+$4.46K	﹤0.01%	305
2018 Q3	–	Sell	-110,300	Closed	-$3.62M	–	199
2018 Q2	$3.62M	Buy	+110,300	New	+$3.59M	0.38%	52
2015 Q3	–	Sell	-33,000	Closed	-$992K	–	333
2015 Q2	$992K	Sell	33,000 -889,400	-96%	-$26.1M	0.04%	232
2015 Q1	$26M	Buy	922,400 +867,400	+1,577%	+$24.9M	1.35%	15
2014 Q4	$1.6M	Buy	+55,000	New	+$1.51M	0.02%	286
2014 Q1	–	Sell	-40,000	Closed	-$1.04M	–	280
2013 Q4	$1.04M	Buy	+40,000	New	+$963K	0.03%	105

Other funds holding CMCSA

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Norges Bank Oslo, Norway $935B AUM

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Marathon Trading Investment Management's CMCSA Position: Q2 2025 in Review

Marathon Trading Investment Management sold out of Comcast (CMCSA) in Q2 2025, closing a stake of 6,369 shares — an estimated $235K sold.

Marathon Trading Investment Management first reported a position in CMCSA in Q3 2013 and held it in 19 quarters. The position peaked at $6.36M in Q1 2015. 2,295 funds tracked by Wall St. Rank hold CMCSA as of Q2 2025.

Marathon Trading Investment Management reported no remaining Comcast position as of Q2 2025 after selling out during the quarter.
Marathon Trading Investment Management sold 6,369 Comcast shares in Q2 2025, an estimated $235K.
Marathon Trading Investment Management first reported a position in Comcast in Q3 2013 and held it in 19 quarters.
Marathon Trading Investment Management's Comcast position peaked at $6.36M in Q1 2015.
2,295 funds tracked by Wall St. Rank held Comcast as of Q2 2025.

Based on Marathon Trading Investment Management's 13F filing for Q2 2025, filed 7 Aug 2025.