COMCAST CORP-CLASS A (CMCSA) Stock Institutional Trading Activity
COMCAST CORP-CLASS A (CMCSA) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Eagle Capital Management, Renaissance Technologies LLC, Matrix Advisors Value Fund, Cullen Value Fund, and Yacktman Asset Management. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.
Explore more:
- COMCAST CORP-CLASS A (CMCSA) stock institutional ownership
- COMCAST CORP-CLASS A (CMCSA) stock insider trading activity
- Stock rankings
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q1 2024 | Parnassus Endeavor Fund | Sell | -1,195,114 | 1,460,416 | $63,309,034 |
| Q1 2024 | Eagle Capital Management | Buy | 1,335,487 | 18,922,959 | $820,310,273 |
| Q1 2024 | First Eagle U.S. Value | Buy | 75,681 | 31,996,318 | $1,387,040,388 |
| Q1 2024 | Gardner Russo & Quinn | Sell | -201,547 | 3,094,244 | $134,135,498 |
| Q1 2024 | Tweedy, Browne Co All Funds (US) | Sell | -1,603 | 39,881 | $1,728,841 |
| Q1 2024 | Cullen Value Fund | Buy | 5,770 | 237,108 | $9,913,492 |
| Q4 2023 | Yacktman Asset Management | Sell | -2,300 | 1,445,500 | $63,385,175 |
| Q4 2023 | Kahn Brothers Group | Buy | 138 | 6,410 | $280,722 |
| Q4 2023 | Dodge & Cox Stock Fund | Sell | -1,179,585 | 74,602,208 | $3,271,306,821 |
| Q4 2023 | Olstein Capital Management | Sell | -43,000 | 107,000 | $4,692 |
| Q4 2023 | Mairs & Power Growth Fund | Sell | -326 | 4,961 | $217,540 |
| Q4 2023 | Hancock Classic Value | Sell | -161 | 5,200 | $228,020 |
| Q4 2023 | Sequoia Financial Advisors | Buy | 38,888 | 291,303 | $12,773,637 |
| Q4 2023 | Matrix Advisors Value Fund | Buy | 2,243 | 635,504 | $27,866,850 |
| Q4 2023 | Eagle Capital Management | Sell | -603,731 | 17,587,472 | $771,210,647 |
| Q4 2023 | First Eagle U.S. Value | Sell | -65,110 | 31,920,637 | $1,399,719,941 |
| Q4 2023 | Gardner Russo & Quinn | Sell | -232,278 | 3,295,791 | $144,520,450 |
| Q4 2023 | Tweedy, Browne Co All Funds (US) | Sell | -7,610 | 41,484 | $1,819,073 |
| Q4 2023 | Cullen Value Fund | Buy | 231,338 | 231,338 | $10,144,170 |
| Q3 2023 | Yacktman Asset Management | Sell | -7,000 | 1,447,800 | $64,195,452 |
| Q3 2023 | Kahn Brothers Group | Buy | 4,796 | 6,272 | $65,445 |
| Q3 2023 | Dodge & Cox Stock Fund | Sell | -951,002 | 75,781,793 | $3,360,164,702 |
| Q3 2023 | Olstein Capital Management | Sell | -48,000 | 150,000 | $6,651 |
| Q3 2023 | Mairs & Power Growth Fund | Sell | -1,716 | 5,287 | $234,426 |
| Q3 2023 | Hillman Value Fund | Sell | -7,204 | 6,525 | $289,319 |
| Q3 2023 | Sequoia Financial Advisors | Sell | -3,862 | 252,415 | $11,192,102 |
| Q3 2023 | Matrix Advisors Value Fund | Sell | -50,189 | 633,261 | $28,078,793 |
| Q3 2023 | Parnassus Endeavor Fund | Sell | -501,692 | 2,655,530 | $117,746,200 |
| Q3 2023 | Eagle Capital Management | Sell | -3,432,986 | 18,191,203 | $806,597,941 |
| Q3 2023 | First Eagle U.S. Value | Sell | -466,590 | 31,985,747 | $1,418,248,022 |
Frequently asked questions about CMCSA activity
Which institutional owners are buying CMCSA?
Institutional owners buying CMCSA include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in CMCSA activity?
"Buy" means an investor increased their reported position in CMCSA compared to the prior reporting period. This reflects growing exposure to COMCAST CORP-CLASS A (CMCSA) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in CMCSA increasing?
Institutional interest in CMCSA can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.