CMCSA

Comcast Corp-Class A
Communication ServicesUSCUSIP 20030N101◍ Confluence graph
Tracked 13F Holders
1692
-518 QoQ
13F Value (tracked)
$75.2B
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
0
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)27 adding · 15 trimming
Insider net (180d)$0

Who owns CMCSA?

1692 tracked 13F filers

1692 tracked 13F filers disclose a position in CMCSA as of the latest SEC 13F filings, a combined $75.2B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
5 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$9.0B
315.0M
−0.3%
Reduced · −798K sh
Q1 2026
2VANGUARD CAPITAL MANAGEMENT LLC
$6.7B
233.2M
First observed position
No prior filed position
Q1 2026
3STATE STREET CORP
$4.8B
195.1M
+6.7%
Added · +12.3M sh
Q2 2026
4CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$3.5B
121.6M
+212%
Added · +82.6M sh
Q1 2026
5DODGE & COX
$3.2B
113.1M
+0.1%
Added · +141K sh
Q1 2026
6GEODE CAPITAL MANAGEMENT, LLC
$2.2B
89.5M
+1.6%
Added · +1.4M sh
Q2 2026
7NORGES BANK
$2.5B
83.6M
−15%
Reduced · −15.3M sh
Q4 2025
8VANGUARD PORTFOLIO MANAGEMENT LLC
$2.2B
76.7M
First observed position
No prior filed position
Q1 2026
9JPMORGAN CHASE & CO
$1.8B
63.2M
−0.2%
Reduced · −140K sh
Q1 2026
10FMR LLC
$1.7B
60.6M
−9.7%
Reduced · −6.5M sh
Q1 2026
11MORGAN STANLEY
$1.2B
42.9M
+3.2%
Added · +1.3M sh
Q1 2026
12AMERIPRISE FINANCIAL INC
$1.2B
42.4M
+11%
Added · +4.3M sh
Q1 2026
13BANK OF AMERICA CORP /DE/
$1.2B
40.9M
+10%
Added · +3.8M sh
Q1 2026
14GOLDMAN SACHS GROUP INC
$1.1B
38.8M
−5.6%
Reduced · −2.3M sh
Q1 2026
15First Eagle Investment Management, LLC
$937.1M
38.2M
Held
Q3 2026
16EAGLE CAPITAL MANAGEMENT LLC
$1.1B
37.6M
−5.8%
Reduced · −2.3M sh
Q1 2026
17NORTHERN TRUST CORP
$1.0B
36.4M
+0.9%
Added · +322K sh
Q1 2026
18FRANKLIN RESOURCES INC
$908.3M
31.6M
+28%
Added · +7.0M sh
Q1 2026
19UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME
$896.0M
31.2M
+11%
Added · +3.0M sh
Q1 2026
20DIMENSIONAL FUND ADVISORS LP
$845.9M
29.5M
+1.8%
Added · +507K sh
Q1 2026
21Bank of New York Mellon Corp
$782.2M
27.2M
−0.7%
Reduced · −201K sh
Q1 2026
22HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC
$769.4M
26.8M
−3.5%
Reduced · −969K sh
Q1 2026
23HARRIS ASSOCIATES L P
$759.3M
26.4M
−3.7%
Reduced · −1.0M sh
Q1 2026
24Legal & General Group Plc
$699.7M
24.4M
+1.6%
Added · +373K sh
Q1 2026
25UBS Group AG
$666.3M
23.2M
+66%
Added · +9.2M sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is CMCSA being bought or sold by institutions?

Last quarter, 0 funds opened a new position in CMCSA and 27 added to an existing one, while 15 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
0
funds
Added
27
funds
Reduced
15
funds
Exited
0
funds

Funds that own CMCSA also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT1091 funds$380.3B
APPLE INCAAPL1070 funds$410.5B
ALPHABET INC-CL AGOOGL1068 funds$255.6B
AMAZON.COM INCAMZN1064 funds$284.8B
META PLATFORMS INC-CLASS AMETA1052 funds$160.1B
NVIDIA CORPNVDA1051 funds$524.3B
JPMORGAN CHASE & COJPM1045 funds$99.5B
ALPHABET INC-CL CGOOG1024 funds$176.0B
JOHNSON & JOHNSONJNJ1019 funds$71.8B
VISA INC-CLASS A SHARESV1005 funds$90.4B
BROADCOM INCAVGO1002 funds$205.7B
HOME DEPOT INCHD993 funds$42.9B

Ranked by how many of CMCSA's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$0
0 insiders
Net
$0
0 P/S txns
Signal
Mixed
open-market
DateInsiderRoleActionSharesValue
Mar 5, 2026Armstrong JasonCFOSell (S)4K$143K
Feb 11, 2026Cavanagh Michael JCo-CEO, DirectorSell (S)58K$1.9M
Feb 3, 2026NAKAHARA ASUKADirectorSell (S)8K$246K
Nov 27, 2024ROBERTS BRIAN LChairman of Board & CEO, DirectorSell (S)235K$10.1M
Nov 26, 2024Cavanagh Michael JPresidentSell (S)26K$1.1M
Nov 26, 2024Cavanagh Michael JPresidentSell (S)108K$4.6M
Nov 26, 2024ROBERTS BRIAN LChairman of Board & CEO, DirectorSell (S)234K$10.0M
Nov 22, 2024BACON KENNETH JDirectorSell (S)14K$625K
Nov 6, 2024Armstrong JasonCFOSell (S)13K$594K
Nov 6, 2024Armstrong JasonCFOSell (S)10K$449K
Jan 29, 2024Cavanagh Michael JPresidentSell (S)115K$5.3M
Nov 20, 2023Armstrong JasonCFOSell (S)35K$1.5M

Institutional ownership over time

1209 funds-326 since Q3 2024
08711741Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $17.0B · 3 values withheld

Share classes

Class13F holdersValue held
CMCSAthis pagecs1692 funds$75.3B
20030N119COM CL A1 funds$21.5M
20030NDC2Common1 funds$2.2M
20030NCT6COUPON BEARING BOND1 funds$3K

Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.

Recent filings

0 shown

No filings captured for this ticker in the live stream yet.

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Ask your agent what changed in CMCSA

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/CMCSA/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for CMCSA.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for CMCSA. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.