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Round Rock Advisors’s Comcast CMCSA Stock Holding History

Round Rock Advisors’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
Q2 		$347K Sell
14,120
-5,349
-27% -$138K 0.04% 261
2026
Q1 		$559K Sell
19,469
-74
-0.4% -$2.21K 0.09% 181
2025
Q4 		$584K Sell
19,543
-11,511
-37% -$328K 0.09% 178
2025
Q3 		$976K Sell
31,054
-8,600
-22% -$288K 0.15% 93
2025
Q2 		$1.42M Sell
39,654
-70
-0.2% -$2.42K 0.24% 67
2025
Q1 		$1.47M Sell
39,724
-151
-0.4% -$5.45K 0.27% 61
2024
Q4 		$1.5M Sell
39,875
-7,467
-16% -$310K 0.31% 54
2024
Q3 		$1.98M Sell
47,342
-813
-2% -$32.1K 0.46% 40
2024
Q2 		$1.89M Buy
48,155
+2,362
+5% +$92.4K 0.46% 43
2024
Q1 		$1.99M Buy
45,793
+1,924
+4% +$83K 0.48% 44
2023
Q4 		$1.92M Buy
+43,869
New +$1.88M 0.48% 44
2021
Q4 		– Sell
-3,704
Closed -$207K – 121
2021
Q3 		$207K Hold
3,704
– – 0.15% 60
2021
Q2 		$211K Sell
3,704
-946
-20% -$52.9K 0.15% 66
2021
Q1 		$252K Buy
4,650
+5
+0.1% +$264 0.2% 56
2020
Q4 		$243K Buy
+4,645
New +$223K 0.22% 45

Other funds holding CMCSA

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Round Rock Advisors's CMCSA Position: Q2 2026 in Review

Round Rock Advisors reduced its Comcast (CMCSA) stake by 27% in Q2 2026, selling an estimated $138K and leaving 14,120 shares worth $347K. The position accounts for 0.04% of the portfolio, ranked #261.

Round Rock Advisors first reported a position in CMCSA in Q4 2020 and has held it in 15 quarters since. The position peaked at $1.99M in Q1 2024. 1,897 funds tracked by Wall St. Rank hold CMCSA as of Q2 2026.

  • Round Rock Advisors held 14,120 shares of Comcast worth $347K as of Q2 2026.
  • Round Rock Advisors sold 5,349 Comcast shares in Q2 2026, an estimated $138K.
  • Comcast made up 0.04% of Round Rock Advisors's portfolio in Q2 2026, its #261 holding.
  • Round Rock Advisors first reported a position in Comcast in Q4 2020 and has held it in 15 quarters since.
  • Round Rock Advisors's Comcast position peaked at $1.99M in Q1 2024.
  • 1,897 funds tracked by Wall St. Rank held Comcast as of Q2 2026.

Based on Round Rock Advisors's 13F filing for Q2 2026, filed 12 Aug 2026.