COMCAST CORP-CLASS A (CMCSA) Institutional Shareholders
COMCAST CORP-CLASS A (CMCSA) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $77.72B in CMCSA holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of CMCSA tracked by InsiderSet, reporting ownership valued at approximately $7.69B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $7.43B, representing an estimated loss of -3.34% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 48% of the total disclosed CMCSA value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, State Street Corp, and several other long-term asset managers with concentrated positions in COMCAST CORP-CLASS A (CMCSA).
This page ranks the largest institutional CMCSA shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
1,852
Total Reported Value
$77.72B
Largest Holder
Blackrock, Inc.
Largest Position
$7.69B
Insider Transactions (90d)
8
Latest Filing Quarter
Q2 2026
New Institutional Positions
29
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.11% | 313,212,228 | $7,689,360,213 | $7,432,526,170 | -$256,834,043 | -3.34% | |
| Vanguard Capital Management Llc | 0.12% | 232,645,894 | $5,711,456,698 | $5,520,687,065 | -$190,769,633 | -3.34% | |
| State Street Corp | 0.14% | 195,059,449 | $4,788,709,473 | $4,628,760,725 | -$159,948,748 | -3.34% | |
| Charles Schwab Investment Management Inc | 0.43% | 133,095,082 | $3,266,879,555 | $3,158,346,296 | -$108,533,259 | -3.32% | |
| Invesco Ltd. | 0.24% | 125,126,243 | $3,071,849,254 | $2,969,245,746 | -$102,603,508 | -3.34% | |
| Capital Research Global Investors | 0.40% | 116,113,743 | $2,850,576,194 | $2,755,379,121 | -$95,197,073 | -3.34% | |
| Dodge & Cox Stock Fund | V. D. Dodge, E. M. Cox | 1.49% | 115,903,125 | $2,845,421,719 | $2,750,381,156 | -$95,040,563 | -3.34% |
| Capital World Investors | 0.30% | 104,629,299 | $2,568,384,991 | $2,482,853,265 | -$85,531,726 | -3.33% | |
| Geode Capital Management, Llc | 0.12% | 89,530,463 | $2,190,479,651 | $2,124,557,887 | -$65,921,764 | -3.01% | |
| Vanguard Portfolio Management Llc | 0.09% | 80,039,893 | $1,964,979,373 | $1,899,346,661 | -$65,632,712 | -3.34% | |
| Norges Bank | 0.19% | 76,539,618 | $1,879,047,622 | $1,816,285,135 | -$62,762,487 | -3.34% | |
| Banque Cantonale Vaudoise | 0.22% | 63,959 | $1,570,000,000 | $1,517,747 | -$1,568,482,253 | -99.90% | |
| Arrowstreet Capital, Limited Partnership | 0.57% | 52,306,272 | $1,284,118,978 | $1,241,227,835 | -$42,891,143 | -3.34% | |
| Fmr Llc | 0.05% | 50,806,417 | $1,247,297,512 | $1,205,636,275 | -$41,661,237 | -3.34% | |
| Morgan Stanley | 0.06% | 43,331,063 | $1,063,777,683 | $1,028,246,125 | -$35,531,558 | -3.34% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 1.54% | 38,172,985 | $937,146,775 | $905,844,934 | -$31,301,841 | -3.34% |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.19% | 31,207,937 | $895,979,871 | $740,564,345 | -$155,415,526 | -17.35% | |
| Jpmorgan Chase & Co | 0.05% | 36,976,352 | $895,567,303 | $877,448,833 | -$18,118,470 | -2.02% | |
| Goldman Sachs Group Inc | 0.09% | 36,243,425 | $889,776,067 | $860,056,475 | -$29,719,592 | -3.34% | |
| Northern Trust Corp | 0.10% | 36,051,354 | $885,060,741 | $855,498,630 | -$29,562,111 | -3.34% | |
| Bank Of America Corp | 0.05% | 32,321,749 | $793,498,935 | $766,995,104 | -$26,503,831 | -3.34% | |
| Ameriprise Financial Inc | 0.16% | 31,910,122 | $783,317,198 | $757,227,195 | -$26,090,003 | -3.33% | |
| Hotchkis & Wiley Capital Management Llc | 2.15% | 30,084,514 | $738,574,819 | $713,905,517 | -$24,669,302 | -3.34% | |
| Dimensional Fund Advisors Lp | 0.13% | 28,911,640 | $709,820,689 | $686,073,217 | -$23,747,472 | -3.35% | |
| Bank Of New York Mellon Corp | 0.11% | 28,144,997 | $690,959,683 | $667,880,779 | -$23,078,904 | -3.34% | |
| Legal & General Group Plc | 0.13% | 25,165,069 | $617,802,448 | $597,167,087 | -$20,635,361 | -3.34% | |
| Vanguard Fiduciary Trust Co | 0.11% | 20,002,649 | $491,065,033 | $474,662,861 | -$16,402,172 | -3.34% | |
| Pacer Advisors, Inc. | 1.17% | 18,376,694 | $451,148,000 | $436,078,949 | -$15,069,051 | -3.34% | |
| Clearbridge Investments, Llc | 0.35% | 17,220,924 | $422,736,718 | $408,652,527 | -$14,084,191 | -3.33% | |
| Ubs Group Ag | 0.07% | 16,706,331 | $410,140,413 | $396,441,235 | -$13,699,178 | -3.34% | |
| First Trust Advisors Lp | 0.24% | 16,537,957 | $406,006,826 | $392,445,720 | -$13,561,106 | -3.34% | |
| Nuveen, Llc | 0.09% | 16,211,988 | $398,004,285 | $384,710,475 | -$13,293,810 | -3.34% | |
| Deutsche Bank Ag\ | 0.11% | 15,909,889 | $390,587,775 | $377,541,666 | -$13,046,109 | -3.34% | |
| Lsv Asset Management | 0.64% | 14,471,395 | $355,273,000 | $343,406,203 | -$11,866,797 | -3.34% | |
| Goldentree Asset Management Lp | 18.39% | 12,898,317 | $316,291,325 | $306,077,062 | -$10,214,263 | -3.23% | |
| Allianz Asset Management Gmbh | 0.27% | 11,898,529 | $292,108,886 | $282,352,093 | -$9,756,793 | -3.34% | |
| Canada Pension Plan Investment Board | 0.16% | 11,675,995 | $286,645,677 | $277,071,361 | -$9,574,316 | -3.34% | |
| Rothschild & Co Wealth Management Uk Ltd | 4.01% | 11,302,582 | $277,478,388 | $268,210,271 | -$9,268,117 | -3.34% | |
| Metropolis Capital Ltd | 7.76% | 9,316,949 | $267,489,606 | $221,091,200 | -$46,398,406 | -17.35% | |
| Sg Americas Securities, Llc | 0.15% | 10,812,763 | $265,453,000 | $256,586,866 | -$8,866,134 | -3.34% | |
| Sumitomo Mitsui Trust Group, Inc. | 0.15% | 10,746,838 | $263,834,873 | $255,022,466 | -$8,812,407 | -3.34% | |
| National Pension Service | 0.17% | 10,585,616 | $259,876,873 | $251,196,668 | -$8,680,205 | -3.34% | |
| Victory Capital Management Inc | 0.14% | 10,314,428 | $253,219,212 | $244,761,376 | -$8,457,836 | -3.34% | |
| Massachusetts Financial Services Co | 0.08% | 9,967,520 | $248,594,482 | $236,529,250 | -$12,065,232 | -4.85% | |
| Swiss National Bank | 0.13% | 10,120,900 | $248,468,095 | $240,168,957 | -$8,299,138 | -3.34% | |
| Royal Bank Of Canada | 0.04% | 9,860,614 | $242,078,000 | $233,992,370 | -$8,085,630 | -3.34% | |
| Hsbc Holdings Plc | 0.12% | 9,864,982 | $241,901,390 | $234,096,023 | -$7,805,367 | -3.23% | |
| Bnp Paribas Financial Markets | 0.12% | 9,700,729 | $238,152,897 | $230,198,299 | -$7,954,598 | -3.34% | |
| Barclays Plc | 0.07% | 9,558,539 | $234,662,133 | $226,824,130 | -$7,838,003 | -3.34% | |
| Wells Fargo & Company/Mn | 0.04% | 9,457,049 | $232,170,555 | $224,415,773 | -$7,754,782 | -3.34% |
Frequently asked questions about CMCSA
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Who owns the most CMCSA stock?
The largest holders of CMCSA are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for COMCAST CORP-CLASS A (CMCSA).
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Is CMCSA widely held by superinvestors?
Many widely followed stocks like CMCSA appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly CMCSA is represented among the institutional managers we track.
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What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.