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CMCSA in the 13F filings

Comcast Corp New · CUSIP 20030N101

Sector · Communications and media
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
30 Sep 2025
the date the book describes
Filed
9 Dec 2025
latest of these filings; the earliest 29 Oct 2025
Managers listing it
34
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q2 2025 and Q3 2025; 27 listed it in both
Shares listed
602,093,749
combined, among listed positions
Reported value
$18.9bn
combined, at the quarter end

Among the 95 comparable managers: 19 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing CMCSA in Q3 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

34 of 34 holders

ActionFiling
Capital World Investors116,176,518$3.7bn0.50%Trimmed-12,638,14513 Nov 2025 (the filing on sec.gov)
Dodge & Cox112,567,918$3.5bn1.91%Added+1,295,59813 Nov 2025 (the filing on sec.gov)
Fidelity (FMR LLC)96,375,913$3.0bn0.16%Trimmed-9,307,01213 Nov 2025 (the filing on sec.gov)
Invesco Ltd39,379,586$1.2bn0.19%Trimmed-1,094,80013 Nov 2025 (the filing on sec.gov)
First Eagle Investment Management LLC35,926,674$1.1bn2.06%Added+21,43812 Nov 2025 (the filing on sec.gov)
Capital Research Global Investors33,706,330$1.1bn0.20%Added+10,633,20613 Nov 2025 (the filing on sec.gov)
T. Rowe Price Associates Inc22,142,526$696m0.07%Trimmed-13,186,74014 Nov 2025 (the filing on sec.gov)
Harris Associates LP22,058,618$693m1.11%Added+656,39514 Nov 2025 (the filing on sec.gov)
Arrowstreet Capital LP21,338,813$670m0.42%Trimmed-3,011,69513 Nov 2025 (the filing on sec.gov)
MFS Investment Management16,957,412$533m0.17%Trimmed-3,464,51629 Oct 2025 (the filing on sec.gov)
Acadian Asset Management LLC11,485,026$361m0.63%Added+3,536,97613 Nov 2025 (the filing on sec.gov)
Man Group PLC8,385,677$263m0.46%Added+936,32414 Nov 2025 (the filing on sec.gov)
AllianceBernstein LP7,902,627$248m0.08%Trimmed-9,952,84814 Nov 2025 (the filing on sec.gov)
Citadel Advisors LLC7,290,696$229munder 0.1%Addedn.a.14 Nov 2025 (the filing on sec.gov)
AQR Capital Management LLC7,118,302$224m0.14%Trimmed-231,24814 Nov 2025 (the filing on sec.gov)
Renaissance Technologies LLC6,964,376$219m0.29%Addedn.a.13 Nov 2025 (the filing on sec.gov)
Bridgewater Associates LP6,859,625$216m0.84%Trimmed-1,848,45813 Nov 2025 (the filing on sec.gov)
Two Sigma Investments LP6,556,098$206m0.31%Addedn.a.14 Nov 2025 (the filing on sec.gov)
D. E. Shaw & Co.4,297,340$135m0.08%Addedn.a.14 Nov 2025 (the filing on sec.gov)
Artisan Partners LP4,179,697$131m0.19%Added+106,92112 Nov 2025 (the filing on sec.gov)
Voloridge Investment Management LLC3,229,756$101m0.34%Added+2,535,73214 Nov 2025 (the filing on sec.gov)
Squarepoint Ops LLC2,830,288$89m0.09%Trimmed-1,724,36614 Nov 2025 (the filing on sec.gov)
Tudor Investment Corp2,666,467$84m0.14%Added+1,649,4459 Dec 2025 (the filing on sec.gov)
Two Sigma Advisers LP1,386,600$44m0.09%Added+313,00014 Nov 2025 (the filing on sec.gov)
Marshall Wace LLP1,014,180$32munder 0.1%Addedn.a.13 Nov 2025 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q2 2025 to Q3 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (2)

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
33 in Q3 2024 to 29 in Q2 2026

Tracked managers listing it, at least.

02040602014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
CMCSA by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201328$20.3bnn.a.n.a.
Q3 201330$21.3bnn.a.n.a.
Q4 201334$23.7bnn.a.n.a.
Q1 201435$24.3bnn.a.n.a.
Q2 201436$27.5bnn.a.n.a.
Q3 201432$27.0bnn.a.n.a.
Q4 201434$26.1bnn.a.n.a.
Q1 201531$24.8bnn.a.n.a.
Q2 201534$26.5bnn.a.n.a.
Q3 201536$26.4bnn.a.n.a.
Q4 201535$29.0bnn.a.n.a.
Q1 201633$30.7bnn.a.n.a.
Q2 201634$32.7bnn.a.n.a.
Q3 201633$33.5bnn.a.n.a.
Q4 201638$34.0bnn.a.n.a.
Q1 201740$38.8bnn.a.n.a.
Q2 201740$40.1bnn.a.n.a.
Q3 201739$40.5bnn.a.n.a.
Q4 201739$41.1bnn.a.n.a.
Q1 201836$33.7bnn.a.n.a.
Q2 201839$32.8bnn.a.n.a.
Q3 201839$32.2bnn.a.n.a.
Q4 201838$30.5bnn.a.n.a.
Q1 201936$35.3bnn.a.n.a.
Q2 201942$37.0bnn.a.n.a.
Q3 201935$38.7bnn.a.n.a.
Q4 201936$36.1bnn.a.n.a.
Q1 202036$27.7bnn.a.n.a.
Q2 202033$33.2bnn.a.n.a.
Q3 202032$40.8bnn.a.n.a.
Q4 202035$45.9bnn.a.n.a.
Q1 202138$49.8bnn.a.n.a.
Q2 202134$52.9bnn.a.n.a.
Q3 202133$51.4bnn.a.n.a.
Q4 202137$45.2bnn.a.n.a.
Q1 202238$40.3bnn.a.n.a.
Q2 202239$32.1bnn.a.n.a.
Q3 202237$22.8bnn.a.n.a.
Q4 202228$25.4bnn.a.n.a.
Q1 202326$28.7bnn.a.n.a.
Q2 202325$29.4bnn.a.n.a.
Q3 202332$30.6bnn.a.n.a.
Q4 202325$28.6bn1312
Q1 202426$26.8bn1214
Q2 202428$24.1bn1812
Q3 202433$27.0bn2210
Q4 202429$24.1bn1517
Q1 202533$24.1bn258
Q2 202534$22.3bn1817
Q3 202534$18.9bn1914
Q4 202533$20.0bn2326
Q1 202628$20.1bn1729
Q2 202629$16.2bn2324

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

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How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own CMCSA, latest filings →Back to the 13F Explorer →