Institutional net outflow of $3.28B (despite 1033 buyers vs 964 sellers) and zero insider buying with $2.28M sold over 90 days signal coordinated distribution.

Confirmation

Acceleration of institutional net selling or another insider sale filing would confirm continuation of bearish trend.

Invalidation Risk

A shift to institutional net inflow or insider buying would invalidate this bearish reading.

These game-theory scenarios are AI-generated from public 13F data and reflect historical patterns only — not a trading recommendation.

Insider Trading (Form 4)

90d confidence

unique buyers

—

buy value

data as of 2026-07-17

12-Month Buy/Sell Activity

Feb 26

BuySell

Action	Insider	Title	Date	Value
Sell	Armstrong Jason	CFO	2026-03-05	$143K
Sell	Cavanagh Michael J	Co-CEO	2026-02-11	$1.89M
Sell	NAKAHARA ASUKA	Director	2026-02-03	$246K

View all insider trades →

Form 144 Pre-Sale Notices

No Form 144 planned sale filings in the last 90 days

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

FAQ

Who are the top institutional investors holding COMCAST CORP-CLASS A (CMCSA)?

Major stakeholders currently include BlackRock, Inc. ($9.0B), Vanguard Capital Management LLC ($6.7B), State Street CORP ($5.2B). Based on the latest 13F filings, there are a total of 2046 tracked investment funds and institutions maintaining positions in CMCSA.

What is the overall institutional sentiment toward CMCSA recently?

Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $3.3B, driven by 1035 managers accumulating shares while 965 reduced their exposure.

Which institutions have been selling or reducing their CMCSA positions?

In the latest period, 754 funds trimmed their holdings, and 211 managers completely exited their positions. The aggregate reported sell value was $48.3B.

Are there any notable investors adding CMCSA to their portfolios?

Yes, buying activity remains notable. 156 institutions opened new positions in {ticker}, and 879 existing holders added to their shares. The total reported buy value for the quarter amounted to $41.8B.