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Dodge & Cox increased CMCSA position by 399,596 shares

Mar 28, 2026Last updated Jul 9, 2026

This StonkWhisper whale intelligence report documents significant institutional position changes in $CMCSA based on SEC 13F filings and block-level trading data. Quarterly 13F disclosures are required for institutional investment managers with at least $100 million in qualifying assets under management. These filings reveal long positions in U.S. equities held as of quarter end. Material changes in institutional positioning — particularly from concentrated funds with a history of high-conviction bets — are tracked by StonkWhisper as leading indicators of institutional thesis formation or exit.

Dodge & Cox AUM: $182.0B INCREASED

AUM: $182.0B · 222 holdings · Period: 2025-12-31

+399,596 Share Change

112,967,514 Current Shares

$3376.6B Current Value

1.82% Portfolio %

+0.4% Change %

Position Change Detail

Issuer Comcast Corp.

Ticker CMCSA

Shares 112,567,918 → 112,967,514 +399,596

Value $3536.9B → $3376.6B

Portfolio Weight 1.82%

Change Type Increased

Period of Report 2025-12-31

Other Dodge & Cox Positions This Period

Ticker	Issuer	Change Type	Share Change	Value
TLV	Grupo Televisa SAB	Exited	64,208,690	—
BN	Brookfield Corp.	New	+41,280,320	$1894.4B
BAC	Bank of America Corp.	Decreased	13,337,999	$110.5B
SNY	Sanofi SA	Decreased	12,439,148	$2737.6B
CX	Cemex SAB de CV	Decreased	11,939,700	$974.3B
SATS	EchoStar Corp.	Decreased	11,758,684	$3.5B
FISV	Fiserv, Inc.	Increased	+10,840,613	$3323.2B
CVS	CVS Health Corp.	Decreased	10,666,598	$4960.8B
GSK	GSK PLC	Decreased	9,885,765	$3360.1B
TRU	TransUnion	New	+9,842,006	$844.0B

Other Whales Moving CMCSA This Period

Manager	Change Type	Share Change
Capital World	Increased	+24,166,881
Capital Research	Increased	+21,958,603
ClearBridge	Increased	+18,258,119
Arrowstreet	Decreased	6,954,912
AQR Capital	Decreased	6,941,888
Hotchkis & Wiley	Increased	+6,893,600
Two Sigma	Exited	6,556,098
State Street	Increased	+6,117,946
Harris (Oakmark)	Increased	+5,400,310
Bridgewater	Decreased	3,349,613

View all sentiment, news, and whale activity for CMCSA (Comcast Corp.).

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Data sourced from SEC 13F institutional holdings filings. This page does not constitute financial advice. StonkWhisper presents public records — it does not verify or guarantee the accuracy of institutional filings. 13F filings are reported quarterly and may lag actual positions.

Last updated: July 09, 2026 at 06:01 UTC