Mariner’s Comcast CMCSA Stock Holding History

Mariner’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
2018 Q2	–	Sell	-7,900	Closed	-$13K	–	798
2018 Q1	$13K	Buy	+7,900	New	+$306K	﹤0.01%	637

Other funds holding CMCSA

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Mariner's CMCSA Position: Q2 2026 in Review

Mariner reduced its Comcast (CMCSA) stake by 27% in Q2 2026, selling an estimated $5.88M and leaving 620,203 shares worth $15.2M. The position accounts for 0.02% of the portfolio, ranked #571.

Mariner first reported a position in CMCSA in Q2 2013 and has held it in 53 quarters since. The position peaked at $115M in Q1 2024. 1,892 funds tracked by Wall St. Rank hold CMCSA as of Q2 2026.

Mariner held 620,203 shares of Comcast worth $15.2M as of Q2 2026.
Mariner sold 227,754 Comcast shares in Q2 2026, an estimated $5.88M.
Comcast made up 0.02% of Mariner's portfolio in Q2 2026, its #571 holding.
Mariner first reported a position in Comcast in Q2 2013 and has held it in 53 quarters since.
Mariner's Comcast position peaked at $115M in Q1 2024.
1,892 funds tracked by Wall St. Rank held Comcast as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.