Ticker · CUSIP 20030N101
···Share
Holders (tracked)
30
Combined shares
372,735,439
Combined value
$10.75B
Last close
$29.35
Quarter
2025Q4
Tracked holders · last 8 quarters
+5 vs previous quarter over the last 8.
30232024Q12025Q4
Price is +1.8% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

30 events
  1. +168,658 shares · 2025Q4
    13F
  2. −2,559,988 shares · 2025Q4
    13F
  3. +3,593,918 shares · 2025Q4
    13F
  4. −9,281,293 shares · 2025Q4
    13F
  5. −288,587 shares · 2025Q4
    13F
  6. +526,600 shares · 2025Q4
    13F
  7. −2,626,319 shares · 2025Q4
    13F
  8. +5,399,810 shares · 2025Q4
    13F
  9. +483,519 shares · 2025Q4
    13F
  10. −6,556,098 shares · 2025Q4
    13F
  11. +5,044,824 shares · 2025Q4
    13F
  12. +1,798,312 shares · 2025Q4
    13F
  13. +399,596 shares · 2025Q4
    13F
  14. +73,440 shares · 2025Q4
    13F
  15. −3,349,613 shares · 2025Q4
    13F
  16. −366,500 shares · 2025Q4
    13F
  17. −403,800 shares · 2025Q4
    13F
  18. +83,594,032 shares · 2025Q4
    13F
  19. −7,822 shares · 2025Q4
    13F
  20. −14,383 shares · 2025Q4
    13F
  21. +245,271 shares · 2025Q4
    13F
  22. −1,017,022 shares · 2025Q3
    13F
  23. +6,105,867 shares · 2025Q3
    13F
  24. +3,489,648 shares · 2025Q3
    13F
  25. −231,248 shares · 2025Q3
    13F
  26. −3,417,160 shares · 2025Q3
    13F
  27. −4,188,353 shares · 2025Q3
    13F
  28. −13,186,740 shares · 2025Q3
    13F
  29. −29,052 shares · 2025Q3
    13F
  30. −2,246 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of CMCSA…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
T. Rowe Price2016Q1$10.10+190.5%$377.5M
D.E. Shaw & Co.2016Q1$28.39+3.4%$3.7M
D.E. Shaw & Co.2016Q1$28.39+3.4%$3.7M
D.E. Shaw & Co.2016Q1$28.39+3.4%$3.7M
Wellington Management2016Q1$29.93-1.9%$59.0M
Steve Cohen (Point72)2016Q1$29.94-2.0%$25.8M
Steve Cohen (Point72)2016Q1$29.94-2.0%$25.8M
Steve Cohen (Point72)2016Q1$29.94-2.0%$25.8M
Ken Griffin (Citadel Advisors)2016Q1$31.01-5.3%$115.5M
Ken Griffin (Citadel Advisors)2016Q1$31.01-5.3%$115.5M
Ken Griffin (Citadel Advisors)2016Q1$31.01-5.3%$115.5M
Izzy Englander (Millennium Mgmt)2016Q1$31.08-5.6%$131.9M
Izzy Englander (Millennium Mgmt)2016Q1$31.08-5.6%$131.9M
Izzy Englander (Millennium Mgmt)2016Q1$31.08-5.6%$131.9M
Renaissance Technologies2016Q2$31.95-8.1%$192.6M
Paul Tudor Jones (Tudor Investment)2016Q3$33.52-12.4%$4.0M
Paul Tudor Jones (Tudor Investment)2016Q3$33.52-12.4%$4.0M
Jeremy Grantham (GMO)2016Q1$35.81-18.0%$49.7M
AQR Capital Management2016Q1$36.07-18.6%$314.4M
Boykin Curry (Eagle Capital)2016Q1$36.28-19.1%$1.17B
Tom Gayner (Markel Group)2016Q2$36.82-20.3%$28.2M
Ray Dalio (Bridgewater Associates)2017Q2$37.29-21.3%$103.0M
Wally Weitz (Weitz Investment)2016Q1$37.95-22.7%$2.5M
Bill Nygren (Harris / Oakmark)2016Q1$38.12-23.0%$805.9M
George Soros (Soros Fund Mgmt)2016Q2$40.35-27.3%$2.2M
Dodge & Cox2016Q1$41.27-28.9%$3.32B
First Eagle Investment Management2016Q1$46.49-36.9%$1.06B
Mario Gabelli (GAMCO)2016Q1$48.19-39.1%$11.8M
Ken Fisher (Fisher Asset Mgmt)2016Q1$48.26-39.2%$1.4M
Norges Bank (Norway SWF)2016Q1$544.66-94.6%$2.45B

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
Added to7
Trimmed9
Exited1

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
31
$2.41T
2022Q2
28
$2.02T
2022Q3
29
$1.48B
2022Q4
28
$21.02B
2023Q1
27
$21.89B
2023Q2
28
$23.97B
2023Q3
27
$23.35B
2023Q4
22
$22.91B
2024Q1
23
$23.50B
2024Q2
28
$22.50B
2024Q3
28
$11.78B
2024Q4
27
$12.13B
2025Q1
26
$8.95B
2025Q2
30
$12.66B
2025Q3
25
$8.43B
2025Q4
30
$10.75B
Congress members trading this stock
DateMemberTypeAmount rangeFiling
2026-03-17Kevin HernSell$15K – $50KPDF ↗
2026-01-09Gilbert CisnerosBuy$1K – $15KPDF ↗
2025-12-18Julie JohnsonSell$1K – $15KPDF ↗
2025-11-18Gilbert CisnerosSell (P)$1K – $15KPDF ↗
2025-11-13Julie JohnsonSell (P)$1K – $15KPDF ↗
2025-11-12Gilbert CisnerosSell (P)$1K – $15KPDF ↗
2025-10-09Gilbert CisnerosSell (P)$1K – $15KPDF ↗
2025-09-23Valerie HoyleSell$1K – $15KPDF ↗
2025-08-14Julie JohnsonSell (P)$1K – $15KPDF ↗
2025-08-05Gilbert CisnerosSell (P)$1K – $15KPDF ↗
2025-08-04Scott Scott FranklinSell$1K – $15KPDF ↗
2025-08-04Scott Scott FranklinSell$1K – $15KPDF ↗

Who owns CMCSA

30 super-investors · 2025Q4
Tracked stake
372.74M
shares
Combined value
$10.75B
% of shares outstanding
shares-out unknown
Quarter action mix
New7Added11Trim11Held1
#ManagerSharesValue
1Dodge & Cox112.97M$3.38B
2Norges Bank
Norway SWF
83.59M$2.50B
3Boykin Curry
Eagle Capital
39.91M$1.19B
4First Eagle Investment Management36.17M$1.08B
5Bill Nygren
Harris / Oakmark
27.46M$821M
6AQR Capital Management10.71M$320M
7Izzy Englander
Millennium Mgmt
7.13M$213M
8Renaissance Technologies6.56M$196M
9Ken Griffin
Citadel Advisors
4.73M$141M
10Izzy Englander
Millennium Mgmt
4.49M$134M
11D.E. Shaw & Co.4.78M$134M
12Ken Griffin
Citadel Advisors
3.93M$118M
13Ray Dalio
Bridgewater Associates
3.51M$105M
14Ken Griffin
Citadel Advisors
2.80M$84M
15Wellington Management2.01M$60M
16Izzy Englander
Millennium Mgmt
1.95M$58M
17Steve Cohen
Point72
1.80M$54M
18Jeremy Grantham
GMO
1.69M$51M
19Tom Gayner
Markel Group
961.9K$29M
20Steve Cohen
Point72
877.4K$26M
21D.E. Shaw & Co.508.4K$14M
22Mario Gabelli
GAMCO
402.9K$12M
23Paul Tudor Jones
Tudor Investment
390.5K$12M
24Paul Tudor Jones
Tudor Investment
136.1K$4M
25D.E. Shaw & Co.124.8K$3M
26Wally Weitz
Weitz Investment
85.0K$3M
27George Soros
Soros Fund Mgmt
73.4K$2M
28Steve Cohen
Point72
52.1K$2M
29Ken Fisher
Fisher Asset Mgmt
47.7K$1M
30T. Rowe Price12.86M$384K

Recent moves

20 transactions
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