COMCAST CORPInsider Trading & SEC Form 4 Analysis
Institutional analysis of internal capital flows based on SEC Form 4 filings.
-$2.3M
Buys minus sales2026.06.30
Latest Form 416
Reporting entitiesNo buyer detected
No open-market buysCavanagh Michael J
$1.9MAutomated_Intelligence_Report :: CMCSA
Algorithmic analysis of recent insider trading activity for CMCSA reveals a bearish posture among the C-suite and board members. Based on the latest SEC Form 4 filings, we have tracked capital events executed by 16 distinct corporate insiders. The aggregate nominal exposure during this reporting cycle reached $114.41M.
Market dynamics show a negative net capital flow of $2.28M when isolating open-market purchases versus open-market sales. Interestingly, a significant portion of the total volume is driven by the exercise of options or grants rather than open-market transactions, suggesting that insiders are currently prioritizing compensation-based equity accumulation or tax-related liquidation over voluntary portfolio rebalancing.
From a microstructural perspective, the most significant liquidity event was a divestment by Cavanagh Michael J (Director), which accounts for a major share of the recent outflow. Continuous monitoring of these Tier-1 actors is essential, as their liquidity decisions often precede material corporate events or reflect an informed, asymmetric perspective on the future performance of CMCSA.
$114.41M
USD NOMINAL VALUE16
UNIQUE C-SUITE ENTITIES2026.06.30
ISO_8601 FORMATAutomated_Queries :: Frequently Asked Questions
>Is insider buying outweighing selling at CMCSA?
Open-market selling volume ($2.28M) currently exceeds buying volume ($0.00M), indicating net liquidation by insiders.
>Who is currently buying CMCSA stock?
Our algorithmic tracking of SEC Form 4 filings indicates no significant open-market buying activity by major executives for CMCSA in the recent reporting period.
>Are CMCSA insiders selling their shares?
Yes, we have tracked $2.28M in recent insider liquidations. The most notable recent seller is Cavanagh Michael J, who executed the largest single offload.