CMCSA
Comcast insider trading
Communication Services · Heavy selling
Close · Oct 5, 2026
$21.57
-23.2% over 12 months
Share price and insider trades
CMCSA closeInsider buyInsider sale
Bought, 12 months$0
Sold, 12 months$2.3M
Insiders buying0
Insiders selling3
Valuation, profit and volume
P/E (trailing)n/aSector median 19.4
Market value—
Profit margin—Revenue growth —
Volume vs. 50-day0.9×Last 5 sessions
Insiders' paper profit—On all tracked purchases —
Summary
Over the past 12 months, 0 Comcast insiders reported open-market purchases totaling $0, while 3 insiders reported sales totaling $2.3M. 0 of 3 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales. 86 grants, option exercises and tax withholdings are not shown.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Mar 6SEC | Jason ArmstrongCFO | Sell | 4,494 | $31.73 | $143K | -32.0% | — |
| Feb 13SEC | Michael J CavanaghCEO | Sell | 57,947 | $32.66 | $1.9M | -34.0% | — |
| Feb 4SEC | Asuka NakaharaDirector | Sell | 8,275 | $29.70 | $246K | -27.4% | — |
Insiders at Comcast
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Michael J CavanaghCEO | — | $1.9M | Mar 3, 2026 | — |
| Asuka NakaharaDirector | — | $246K | Feb 4, 2026 | — |
| Jason ArmstrongCFO | — | $143K | Mar 6, 2026 | — |
| Thomas J Baltimore Jr.Director | — | — | Oct 2, 2026 | — |
| Louise F. BradyDirector | — | — | Oct 2, 2026 | — |
| Edward D BreenDirector | — | — | Oct 2, 2026 | — |
| Jeffrey A HonickmanDirector | — | — | Oct 2, 2026 | — |
| Gordon SmithDirector | — | — | Oct 2, 2026 | — |
| Brian L RobertsCEO, Chair | — | — | Sep 3, 2026 | — |
| Daniel C. MurdockEvp & Chief Accounting Officer | — | — | Apr 3, 2026 | — |
| Jennifer KhouryChief Communications Officer | — | — | Mar 18, 2026 | — |
| Thomas J. ReidGeneral Counsel | — | — | Mar 3, 2026 | — |
| Madeline S. BellDirector | — | — | Jan 22, 2026 | — |
| Wonya Y LucasDirector | — | — | Nov 21, 2025 | — |
| Kenneth J BaconDirector | — | — | Nov 21, 2025 | — |
| David C NovakDirector | — | — | Nov 21, 2025 | — |
Insider activity at other Communication Services companies
Same sector, ranked by insider buying in the last 90 days.
Common questions about CMCSA insiders
Are Comcast insiders buying CMCSA stock?
In the past 12 months, 0 insiders reported open-market purchases of CMCSA worth $0.
Are Comcast insiders selling CMCSA stock?
3 insiders reported sales worth $2.3M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.