There is a long list of 2413 institutional holders of CMCSA within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of CMCSA by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-CMCSA table below, the initial column indicates the name of each top institutional holder of CMCSA, with a link to that fund's top holdings. The next columns indicate the amount of CMCSA stock held by each of the institutional holders of CMCSA, followed by the CMCSA position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
Vanguard Group Inc.	378,006,832	$16,575,600	12/31/2023
CMCSA	378,006,832	$16,575,600	12/31/2023
BlackRock Inc.	298,220,847	$13,076,984	12/31/2023
CMCSA	298,220,847	$13,076,984	12/31/2023
State Street Corp	161,568,099	$7,084,761	12/31/2023
CMCSA	161,568,099	$7,084,761	12/31/2023
Capital International Investors	123,655,284	$5,422,596	12/31/2023
CMCSA	123,655,284	$5,422,596	12/31/2023
FMR LLC	112,426,998	$4,929,924	12/31/2023
CMCSA	112,426,998	$4,929,924	12/31/2023
Capital World Investors	107,773,317	$4,725,926	12/31/2023
CMCSA	107,773,317	$4,725,926	12/31/2023
JPMorgan Chase & Co.		$4,328,901	12/31/2023
CMCSA	98,265,952	$4,308,962	12/31/2023
Call	753,700	$33,050	12/31/2023
Put	299,000	$13,111	12/31/2023
Massachusetts Financial Services Co. MA	91,882,669	$4,029,055	12/31/2023
CMCSA	91,882,669	$4,029,055	12/31/2023
Geode Capital Management LLC	81,466,458	$3,563,394	12/31/2023
CMCSA	81,466,458	$3,563,394	12/31/2023
Dodge & Cox	74,602,208	$3,271,307	12/31/2023
CMCSA	74,602,208	$3,271,307	12/31/2023
Bank of America Corp DE		$3,253,402	12/31/2023
CMCSA	74,871,591	$3,283,119	12/31/2023
Put	1,960,000	$85,946	12/31/2023
Call	1,282,300	$56,229	12/31/2023
Capital Research Global Investors	61,508,767	$2,697,162	12/31/2023
CMCSA	61,508,767	$2,697,162	12/31/2023
Norges Bank	57,992,888	$2,542,988	12/31/2023
CMCSA	57,992,888	$2,542,988	12/31/2023
Morgan Stanley	54,291,084	$2,380,664	12/31/2023
CMCSA	54,291,084	$2,380,664	12/31/2023
Ameriprise Financial Inc.	53,560,475	$2,348,070	12/31/2023
CMCSA	53,560,475	$2,348,070	12/31/2023
Wells Fargo & Company MN		$1,930,029	12/31/2023
CMCSA	41,950,747	$1,839,540	12/31/2023
Call	2,341,300	$102,666	12/31/2023
Put	277,700	$12,177	12/31/2023
Northern Trust Corp	43,544,406	$1,909,422	12/31/2023
CMCSA	43,544,406	$1,909,422	12/31/2023
Invesco Ltd.	39,069,233	$1,713,186	12/31/2023
CMCSA	39,069,233	$1,713,186	12/31/2023
Dimensional Fund Advisors LP	37,686,503	$1,652,642	12/31/2023
CMCSA	37,686,503	$1,652,642	12/31/2023
Legal & General Group Plc	32,433,598	$1,422,218	12/31/2023
CMCSA	32,433,598	$1,422,218	12/31/2023
Bank of New York Mellon Corp	32,751,720	$1,419,787	03/31/2024
CMCSA	32,751,720	$1,419,787	03/31/2024
Clearbridge Investments LLC	32,338,932	$1,418,062	12/31/2023
CMCSA	32,338,932	$1,418,062	12/31/2023
First Eagle Investment Management LLC	31,920,637	$1,399,720	12/31/2023
CMCSA	31,920,637	$1,399,720	12/31/2023
Charles Schwab Investment Management Inc.	30,549,019	$1,316,224	12/31/2023
CMCSA	30,549,019	$1,316,224	12/31/2023
Arrowstreet Capital Limited Partnership	29,325,681	$1,285,931	12/31/2023
CMCSA	29,325,681	$1,285,931	12/31/2023
Nuveen Asset Management LLC	28,125,873	$1,233,320	12/31/2023
CMCSA	28,125,873	$1,233,320	12/31/2023
Franklin Resources Inc.	26,408,131	$1,157,997	12/31/2023
CMCSA	26,408,131	$1,157,997	12/31/2023
Goldman Sachs Group Inc.		$1,144,622	12/31/2023
CMCSA	24,497,631	$1,074,221	12/31/2023
Call	3,898,300	$170,940	12/31/2023
Put	2,292,800	$100,539	12/31/2023
UBS Asset Management Americas Inc.	23,174,338	$1,016,195	12/31/2023
CMCSA	23,174,338	$1,016,195	12/31/2023
Alliancebernstein L.P.	20,892,837	$916,151	12/31/2023
CMCSA	20,892,837	$916,151	12/31/2023
Price T Rowe Associates Inc. MD	19,773,087	$867,051	12/31/2023
CMCSA	19,773,087	$867,051	12/31/2023
Barrow Hanley Mewhinney & Strauss LLC	19,351,559	$848,566	12/31/2023
CMCSA	19,351,559	$848,566	12/31/2023
Harris Associates L P	18,873,787	$827,616	12/31/2023
CMCSA	18,873,787	$827,616	12/31/2023
Nordea Investment Management AB	17,798,387	$778,679	12/31/2023
CMCSA	17,798,387	$778,679	12/31/2023
Eagle Capital Management LLC NY	17,587,472	$771,211	12/31/2023
CMCSA	17,587,472	$771,211	12/31/2023
LSV Asset Management	15,688,650	$687,947	12/31/2023
CMCSA	15,688,650	$687,947	12/31/2023
Barclays PLC		$680,816	12/31/2023
CMCSA	16,074,994	$704,890	12/31/2023
Put	712,500	$31,243	12/31/2023
Call	163,500	$7,169	12/31/2023
Raymond James & Associates	15,100,752	$654,617	03/31/2024
CMCSA	15,100,752	$654,617	03/31/2024
Royal Bank of Canada		$632,681	12/31/2023
CMCSA	14,528,276	$637,066	12/31/2023
Put	250,000	$10,963	12/31/2023
Call	150,000	$6,578	12/31/2023
Swiss National Bank	12,869,700	$564,336	12/31/2023
CMCSA	12,869,700	$564,336	12/31/2023
Janus Henderson Group PLC	12,653,649	$554,886	12/31/2023
CMCSA	12,653,649	$554,886	12/31/2023
Amundi		$528,330	12/31/2023
CMCSA	12,184,477	$528,327	12/31/2023
Call	6,300	$3	12/31/2023
Deutsche Bank AG	11,695,328	$512,840	12/31/2023
CMCSA	11,695,328	$512,840	12/31/2023
Hotchkis & Wiley Capital Management LLC	11,304,304	$495,694	12/31/2023
CMCSA	11,304,304	$495,694	12/31/2023
California Public Employees Retirement System	11,336,874	$491,453	03/31/2024
CMCSA	11,336,874	$491,453	03/31/2024
Rothschild & Co Wealth Management UK Ltd	10,792,562	$473,254	12/31/2023
CMCSA	10,792,562	$473,254	12/31/2023
Sumitomo Mitsui Trust Holdings Inc.	10,844,805	$470,122	03/31/2024
CMCSA	10,844,805	$470,122	03/31/2024
First Pacific Advisors LP	10,561,241	$463,110	12/31/2023
CMCSA	10,561,241	$463,110	12/31/2023
Wellington Management Group LLP	10,231,113	$448,634	12/31/2023
CMCSA	10,231,113	$448,634	12/31/2023
Envestnet Asset Management Inc.	10,135,383	$444,437	12/31/2023
CMCSA	10,135,383	$444,437	12/31/2023