Comcast Corp-class A
$21.90+0.6%
+$10.9B
Net Activity
+11.32% total shares
Institutions Holding
1932
Popularity Rank
#154
Avg Weight
0.22%
Total Value
$103.2B
1932 institutions currently hold CMCSA, with 858 net buyers and 1204 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Decreased
Based on recent trading activity
Net Selling Institutions
1204
Net Buying Institutions
858
Top 5 by Value
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Across its top 20 institutional holders, CMCSA's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 10/100, avg. turnover score 45/100).
CMCSA ranks #154 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
CMCSA is a top-conviction position for Silver Rock Financial LP — at 32.4% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
Concurrent Investment Advisors, LLC has added to its CMCSA position for two straight quarters, increasing it by $10.1M to reach $13.2M today.
DAVENPORT & Co LLC has trimmed its CMCSA position for two straight quarters, cutting it by $50.6M while still holding $107.2M.
CMCSA is up 0.6% today, and institutions have been net buyers of $10.9B this quarter — today's price move and the underlying institutional flow are pointing the same direction.
CMCSA posted net income of $11.2B over the trailing twelve months.
+$19.4B
Total Buy Value
$8.7B
Total Sell Value
858
Net Buyers
1204
Net Sellers
CMCSA
Q2 2026
Top 5 Institutional Movers
+$15.0B
-$2.7B
+$1.9B
CMCSA does not currently show a 13F-and-insider convergence signal — its insider confidence score is 0/100, below the threshold this product uses to flag combined buying pressure.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
0
unique buyers
—
buy value
12-Month Buy/Sell Activity
| Action | Insider | Date | Value |
|---|---|---|---|
| Sell | Armstrong Jason | 2026-03-05 | $143K |
| Sell | Cavanagh Michael J | 2026-02-11 | $1.89M |
| Sell | NAKAHARA ASUKA | 2026-02-03 | $246K |
| Action | Member | Trade Date | Amount |
|---|---|---|---|
| Buy | Alan Armstrong Senate | 2026-03-27 | $1K–$15K |
| Sell (Full) | Angus S King, Jr. Senate | 2025-12-29 | $1K–$15K |
| Sell (Full) | Shelley M Capito Senate | 2025-02-24 | $1K–$15K |
| Sell (Full) | John Boozman Senate | 2024-06-20 | $1K–$15K |
| Sell (Partial) | Markwayne Mullin Senate | 2024-06-12 | $15K–$50K |
| Sell (Full) | Sheldon Whitehouse Senate | 2024-03-13 | $15K–$50K |
| Sell (Full) | Jerry Moran, Senate | 2023-12-14 | $1K–$15K |
| Sell (Full) | Jerry Moran, Senate | 2023-12-14 | $1K–$15K |
No Form 144 planned sale filings in the last 90 days
0
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| Capital World Investors | 13G/A | 2026-08-12 | 3.0% |
1
Filings (14d)
Comcast Corporation issued a press release on July 23, 2026, reporting its financial results for the three and six months ended June 30, 2026. This 8-K filing includes that press release (Exhibit 99.1) and a related explanation of why the company believes its non-GAAP financial measures are useful to investors (Exhibit 99.2). No specific revenue or earnings figures are provided in the filing excerpt itself.
View Full Filing (SEC EDGAR)20030N101, 20030N10 , 20030N20 , 20030N200, 20030N901, 20030N951, 20030n101, 20030n200
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Access CMCSA's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/CMCSACLI
npx alphasmo stocks get CMCSA