SecurityCMCSK / Comcast Corporation (20030N200)
Chairman of Board, Pres. & CEOROBERTS BRIAN L
IndustryCable and Other Pay Television Services
Institutional Owners14
Institutional Shares125,767 - 0.00%
Common Shares Outstanding4,572,489,007 shares (as of 2018-06-30)
Institutional Value$ 4,126,000 USD

Institutional Stock Ownership and Shareholders

Comcast Corporation (NASDAQ:CMCSK) has 14 institutional investors and shareholders that have filed 13D/G or 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 125,767 shares. Largest shareholders include SG Americas Securities, LLC, JP Morgan Chase & Co, Allianz Asset Management AG, Allianz Asset Management AG, Pentwater Capital Management LP, JP Morgan Chase & Co, SG Americas Securities, LLC, Group One Trading, L.p., Group One Trading, L.p., and Cibc World Markets Corp.
Comcast Corporation (NASDAQ:CMCSK) ownership structure shows current positions in the company by institutions and funds, as well as latest changes in position size. Major shareholders can include individual investors, mutual funds, hedge funds, or institutions. The Schedule 13D indicates that the investor holds more than 5% of the company and intends to actively pursue a change in business strategy. Schedule 13G indicates a passive investment of over 5%. Green rows indicate new positions. Red rows indicate closed positions. Click the link icon to see the full transaction history.

File DateFormInvestor Opt Prev
Shares
Current
Shares
Change
(Percent)
Prev Value
($1000)
Current Value
($1000)
Change
(Percent)
2018-08-14 13F-HR JP Morgan Chase & Co Put 1,945,800 764,300 -60.72 66,488 25,077 -62.28
2018-08-13 13F-HR Ninepoint Partners Lp 60,000 0 -100.00 2,050 0 -100.00
2018-08-13 13F-HR Hudson Bay Capital Management LP Call 48,100 130,000 170.27 1,644 4,265 159.43
2018-08-09 13F-HR Fore Capital, Llc Call 140,000 4,593
2018-08-14 13F-HR Tourbillon Capital Partners, L.P. Call 750,000 0 -100.00 25,628 0 -100.00
2018-07-09 13F-HR YHB Investment Advisors, Inc. 96,497 125,767 30.33 3,297 4,126 25.14
2018-07-30 13F-HR SIMPLEX TRADING, LLC Call 2,015 4,140 105.46 287 13,583 4,632.75
2018-08-13 13F-HR GROUP ONE TRADING, L.P. Put 264,500 365,800 38.30 9,038 12,002 32.79
2018-08-14 13F-HR ADVENT CAPITAL MANAGEMENT /DE/ Call 2,000 139
2018-08-14 13F-HR JP Morgan Chase & Co Call 4,586,600 2,152,700 -53.07 156,724 70,630 -54.93
2018-08-08 13F-HR Private Capital Group, Llc 0 0
2018-08-13 13F-HR Allianz Asset Management AG Put 1,810,500 1,713,100 -5.38 61,865 56,207 -9.15
2018-08-13 13F-HR CIBC WORLD MARKETS CORP Call 225,000 7,382
2018-08-14 13F-HR Marathon Trading Investment Management LLC Put 0 110,300 0 3,619
2018-08-07 13F-HR SG Americas Securities, LLC Call 149,400 379,500 154.02 68 614 802.94
2018-08-14 13F-HR Magnetar Financial LLC Call 400,000 0 -100.00 202 0 -100.00
2018-08-14 13F-HR MARK ASSET MANAGEMENT CORP Call 90,000 2,953
2018-08-14 13F-HR BOOTHBAY FUND MANAGEMENT, LLC Call 1,000 728 -27.20 3,417 2,389 -30.08
2018-08-13 13F-HR GROUP ONE TRADING, L.P. Call 131,300 364,800 177.84 4,487 11,969 166.75
2018-08-14 13F-HR Pentwater Capital Management LP Call 0 1,075,000 0 35,271
2018-07-30 13F-HR SIMPLEX TRADING, LLC Put 3,109 5,366 72.60 835 17,605 2,008.38
2018-08-13 13F-HR Allianz Asset Management AG Call 481,800 1,312,300 172.37 16,463 43,057 161.54
2018-08-07 13F-HR SG Americas Securities, LLC Put 427,100 2,728,900 538.94 627 3,380 439.07
2018-08-13 13F-HR CIBC WORLD MARKETS CORP Put 0 225,000 0 7,382
2018-08-13 13F-HR Hudson Bay Capital Management LP Put 225,000 100,000 -55.56 7,688 3,281 -57.32

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CUSIP: 20030N200