CMCSA Insider Trading Activity

Transactions disclosed by company insiders to the SEC on Form 4, most recent first.

InsiderRoleDateSharesValue
BREEN EDWARD D Director 2026-08-17 62,440 $0
ROBERTS BRIAN L Chairman of Board & Co-CEO 2026-08-05 204,100 $0

How Institutional Funds Moved on CMCSA

Position changes disclosed in SEC Form 13F filings. These report a quarterly snapshot, not exact trade dates.

FundChangeQuarter
RWC Asset Management LLP RWC Asset Management LLP opened a new position worth $163,173,416. 2026-06-30
NORGES BANK NORGES BANK opened a new position worth $1,879,047,622. 2026-06-30
Junto Capital Management LP Junto Capital Management LP opened a new position worth $40,972,207. 2026-06-30
Schonfeld Strategic Advisors LLC Schonfeld Strategic Advisors LLC opened a new position worth $46,153,336. 2026-06-30
Vinva Investment Management Ltd Vinva Investment Management Ltd opened a new position worth $53,420,891. 2026-06-30
Ilex Capital Partners (UK) LLP Ilex Capital Partners (UK) LLP opened a new position worth $39,114,754. 2026-06-30
DME Capital Management, LP DME Capital Management, LP opened a new position worth $33,038,899. 2026-06-30
RENAISSANCE TECHNOLOGIES LLC RENAISSANCE TECHNOLOGIES LLC exited a position previously worth $22,634,275. 2026-06-30

Which Funds Hold CMCSA

Largest reported positions as of 2026-06-30.

FundValueShares
VANGUARD CAPITAL MANAGEMENT LLC $5,711,456,698 232,645,894
Capital Research Global Investors $2,850,576,194 116,113,743
Dodge & Cox $2,845,421,719 115,903,125
Capital World Investors $2,568,384,991 104,629,299
VANGUARD PORTFOLIO MANAGEMENT LLC $1,964,979,373 80,039,893
NORGES BANK $1,879,047,622 76,539,618
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $1,284,118,978 52,306,272
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC $738,574,819 30,084,514
FMR LLC $637,518,080 25,968,150
DIMENSIONAL FUND ADVISORS LP $611,178,839 24,895,270

Data compiled from public SEC filings. This is informational reporting, not investment advice.

Kevin Hern Discloses CMCSA Sale Amid Insider Activity

Capitol building alongside a Comcast logo representing a congressional stock disclosure

Rep. Kevin Hern (R-Okla.) has filed a Periodic Transaction Report disclosing a sale of Comcast Corporation Class A Common Stock (CMCSA), made through a jointly-held account with his spouse. The transaction, dated August 5, 2026, falls in the disclosed range of $1,001 to $15,000, according to the filing submitted to the U.S. House of Representatives … Read more