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Main Street Research’s Comcast CMCSA Stock Holding History

Main Street Research’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 		$271K Sell
11,037
-2,483
-18% -$64.1K 0.01% 119
2026
Q1 		$388K Buy
13,520
+2,608
+24% +$78K 0.02% 97
2025
Q4 		$326K Sell
10,912
-311
-3% -$8.87K 0.02% 95
2025
Q3 		$353K Buy
11,223
+851
+8% +$28.5K 0.02% 99
2025
Q2 		$370K Hold
10,372
– – 0.02% 87
2025
Q1 		$383K Hold
10,372
– – 0.03% 79
2024
Q4 		$389K Hold
10,372
– – 0.02% 80
2024
Q3 		$433K Sell
10,372
-66
-0.6% -$2.61K 0.03% 74
2024
Q2 		$409K Sell
10,438
-1,710
-14% -$66.9K 0.03% 69
2024
Q1 		$527K Buy
12,148
+1,437
+13% +$62K 0.04% 66
2023
Q4 		$470K Sell
10,711
-800
-7% -$34.3K 0.04% 67
2023
Q3 		$510K Buy
11,511
+7
+0.1% +$313 0.05% 66
2023
Q2 		$478K Buy
11,504
+1,132
+11% +$45K 0.08% 62
2023
Q1 		$393K Sell
10,372
-1,967
-16% -$74.4K 0.08% 62
2022
Q4 		$431K Buy
12,339
+9
+0.1% +$298 0.11% 59
2022
Q3 		$362K Buy
12,330
+1,958
+19% +$73.2K 0.08% 63
2022
Q2 		$407K Sell
10,372
-128
-1% -$5.49K 0.11% 50
2022
Q1 		$492K Sell
10,500
-1,484
-12% -$71.5K 0.05% 73
2021
Q4 		$603K Buy
11,984
+480
+4% +$25K 0.05% 74
2021
Q3 		$643K Buy
11,504
+670
+6% +$39.1K 0.06% 72
2021
Q2 		$618K Sell
10,834
-56
-0.5% -$3.13K 0.05% 81
2021
Q1 		$589K Sell
10,890
-420
-4% -$22.2K 0.06% 78
2020
Q4 		$593K Buy
11,310
+255
+2% +$12.2K 0.06% 75
2020
Q3 		$511K Buy
11,055
+506
+5% +$22K 0.07% 72
2020
Q2 		$411K Sell
10,549
-941
-8% -$35.8K 0.06% 73
2020
Q1 		$395K Sell
11,490
-298,399
-96% -$12.6M 0.1% 57
2019
Q4 		$13.9M Buy
309,889
+295,530
+2,058% +$13.2M 2.2% 26
2019
Q3 		$647K Buy
14,359
+774
+6% +$34.3K 0.12% 52
2019
Q2 		$574K Sell
13,585
-346
-2% -$14.6K 0.13% 54
2019
Q1 		$557K Hold
13,931
– – 0.18% 47
2018
Q4 		$474K Sell
13,931
-350
-2% -$12.8K 0.18% 44
2018
Q3 		$506K Sell
14,281
-1,177
-8% -$41.7K 0.07% 64
2018
Q2 		$507K Sell
15,458
-558
-3% -$18.2K 0.08% 67
2018
Q1 		$547K Sell
16,016
-11,048
-41% -$429K 0.09% 63
2017
Q4 		$1.08M Sell
27,064
-1,392
-5% -$52.3K 0.17% 56
2017
Q3 		$1.09M Sell
28,456
-1,660
-6% -$65.4K 0.18% 60
2017
Q2 		$1.17M Buy
30,116
+556
+2% +$21.9K 0.19% 62
2017
Q1 		$1.11M Sell
29,560
-3,536
-11% -$131K 0.19% 66
2016
Q4 		$1.14M Buy
33,096
+220
+0.7% +$7.35K 0.22% 63
2016
Q3 		$1.09M Hold
32,876
– – 0.21% 67
2016
Q2 		$1.07M Buy
32,876
+1,978
+6% +$61.4K 0.22% 64
2016
Q1 		$944K Sell
30,898
-758
-2% -$21.8K 0.24% 58
2015
Q4 		$893K Buy
31,656
+7,512
+31% +$226K 0.19% 73
2015
Q3 		$756K Hold
24,144
– – 0.18% 75
2015
Q2 		$726K Sell
24,144
-484
-2% -$14.2K 0.15% 87
2015
Q1 		$695K Buy
24,628
+454
+2% +$13.1K 0.15% 85
2014
Q4 		$701K Buy
24,174
+394
+2% +$10.8K 0.15% 86
2014
Q3 		$639K Hold
23,780
– – 0.14% 96
2014
Q2 		$638K Sell
23,780
-1,584
-6% -$40.7K 0.15% 89
2014
Q1 		$635K Buy
25,364
+1,666
+7% +$43.4K 0.15% 90
2013
Q4 		$616K Buy
23,698
+138
+0.6% +$3.32K 0.15% 95
2013
Q3 		$531K Sell
23,560
-278
-1% -$6.05K 0.14% 95
2013
Q2 		$498K Buy
+23,838
New +$492K 0.15% 95

Other funds holding CMCSA

RCWMU
Rothschild & Co Wealth Management (UK) London, United Kingdom $6.93B AUM 1.4% 1-Year Est. Return
MC
Metropolis Capital Amersham, United Kingdom $3.45B AUM 1.26% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
WSFS
Wilmington Savings Fund Society Wilmington, Delaware $4.48B AUM 24.77% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
RAM
RWC Asset Management London, United Kingdom $2.64B AUM 33.18% 1-Year Est. Return
Mirae Asset Global Investments
Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return
DC
Davenport & Co Richmond, Virginia $20.4B AUM 18.11% 1-Year Est. Return
FWIA
Fort Washington Investment Advisors Cincinnati, Ohio $19.9B AUM 22.19% 1-Year Est. Return
AssetMark Inc
AssetMark Inc Concord, California $58.2B AUM 22.78% 1-Year Est. Return

Main Street Research's CMCSA Position: Q2 2026 in Review

Main Street Research reduced its Comcast (CMCSA) stake by 18% in Q2 2026, selling an estimated $64.1K and leaving 11,037 shares worth $271K. The position accounts for 0.01% of the portfolio, ranked #119.

Main Street Research first reported a position in CMCSA in Q2 2013 and has held it in 53 quarters since. The position peaked at $13.9M in Q4 2019. 742 funds tracked by Wall St. Rank hold CMCSA as of Q2 2026.

  • Main Street Research held 11,037 shares of Comcast worth $271K as of Q2 2026.
  • Main Street Research sold 2,483 Comcast shares in Q2 2026, an estimated $64.1K.
  • Comcast made up 0.01% of Main Street Research's portfolio in Q2 2026, its #119 holding.
  • Main Street Research first reported a position in Comcast in Q2 2013 and has held it in 53 quarters since.
  • Main Street Research's Comcast position peaked at $13.9M in Q4 2019.
  • 742 funds tracked by Wall St. Rank held Comcast as of Q2 2026.

Based on Main Street Research's 13F filing for Q2 2026, filed 29 Jul 2026.