Insider Trading activities of Comcast Corp insiders. , Part 4

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Comcast Corp since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Comcast Corp since year 2005. (See page 1 of this report.) Table 2 shows the detailed insider transactions of Comcast Corp since 2005. The reporting company's ticker symbol is CMCSA. The reporting company's CIK number is 1166691.
The total value of stock buying since 2005 is $2,897,650.
The total value of stock sales since 2005 is $464,479,641.
The total value of stock option exercises since 2005 is $586,435,382.



Table 2. Detailed insider stock purchases, sales, and option exercises of Comcast Corp insiders (CMCSA) , Part 4
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2012-04-09 Smit Neil (Executive Vice President) Option Ex 72,100 .00 0
2012-03-30 Angelakis Michael J (Vice Chairman and CFO) Option Ex 47,070 .00 0
2012-03-30 Block Arthur R (SVP, GC and Secretary) Sale 2,887 29.93 86,407
2012-03-28 Angelakis Michael J (Vice Chairman and CFO) Option Ex 24,840 .00 0
2012-03-28 Block Arthur R (SVP, GC and Secretary) Sale 4,037 30.07 121,396
2012-03-28 Block Arthur R (SVP, GC and Secretary) Option Ex 5,085 .00 0
2012-03-28 Salva Lawrence J (SVP & Controller) Option Ex 5,085 .00 0
2012-03-28 Cohen David L (Executive Vice President) Sale 34,030 29.89 1,017,326
2012-03-28 Cohen David L (Executive Vice President) Option Ex 19,290 .00 0
2012-03-28 Burke Stephen B (Executive Vice President) Option Ex 33,120 .00 0
2012-03-28 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 41,400 .00 0
2012-03-27 Angelakis Michael J (Vice Chairman and CFO) Option Ex 36,000 .00 0
2012-03-27 Block Arthur R (SVP, GC and Secretary) Option Ex 7,110 .00 0
2012-03-27 Salva Lawrence J (SVP & Controller) Option Ex 7,110 .00 0
2012-03-27 Cohen David L (Executive Vice President) Option Ex 27,750 .00 0
2012-03-27 Burke Stephen B (Executive Vice President) Option Ex 47,250 .00 0
2012-03-27 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 58,500 .00 0
2012-03-26 Angelakis Michael J (Vice Chairman and CFO) Option Ex 28,755 .00 0
2012-03-26 Smit Neil (Executive Vice President) Option Ex 18,750 .00 0
2012-03-26 Block Arthur R (SVP, GC and Secretary) Option Ex 5,775 .00 0
2012-03-26 Salva Lawrence J (SVP & Controller) Option Ex 5,415 .00 0
2012-03-26 Cohen David L (Executive Vice President) Option Ex 22,335 .00 0
2012-03-26 Burke Stephen B (Executive Vice President) Option Ex 38,025 .00 0
2012-03-26 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 47,205 .00 0
2012-03-21 Block Arthur R (SVP, GC and Secretary) Sale 2,010 29.79 59,883
2012-03-21 Cohen David L (Executive Vice President) Sale 34,060 29.50 1,004,735
2012-03-20 Block Arthur R (SVP, GC and Secretary) Option Ex 3,540 .00 0
2012-03-20 Salva Lawrence J (SVP & Controller) Option Ex 3,540 .00 0
2012-03-20 Roberts Brian L (Chairman of Board, Pres. & CEO) Sale 145,509 29.63 4,311,431
2012-03-19 Block Arthur R (SVP, GC and Secretary) Sale 2,180 29.65 64,637
2012-03-16 Block Arthur R (SVP, GC and Secretary) Option Ex 10,240 .00 0
2012-03-16 Salva Lawrence J (SVP & Controller) Option Ex 10,240 .00 0
2012-03-16 Cohen David L (Executive Vice President) Option Ex 48,500 .00 0
2012-03-16 Burke Stephen B (Executive Vice President) Option Ex 83,280 .00 0
2012-03-16 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 104,100 .00 0
2012-03-16 Roberts Ralph J (Director) Option Ex 39,920 .00 0
2012-03-15 Cohen David L (Executive Vice President) Sale 81,040 29.48 2,388,654
2012-03-15 Cohen David L (Executive Vice President) Option Ex 28,125 18.08 508,499
2012-03-12 Block Arthur R (SVP, GC and Secretary) Sale 8,415 29.78 250,607
2012-03-08 Salva Lawrence J (SVP & Controller) Sale 47,840 29.65 1,418,408
2012-03-06 Roberts Brian L (Chairman of Board, Pres. & CEO) Sale 150,000 28.76 4,314,150
2012-03-02 Salva Lawrence J (SVP & Controller) Option Ex 231,975 18.50 4,292,001
2012-02-29 Roberts Ralph J (Director) Sale 104,879 29.36 3,079,352
2012-02-29 Roberts Ralph J (Director) Option Ex 450,000 18.08 8,135,999
2012-02-27 Bonovitz Sheldon M (Director) Sale 18,000 28.29 509,220
2012-02-23 Salva Lawrence J (SVP & Controller) Sale 34,037 29.68 1,010,218
2012-02-23 Salva Lawrence J (SVP & Controller) Option Ex 138,750 18.08 2,508,599
2012-02-17 Smit Neil (Executive Vice President) Sale 23,799 28.50 678,366
2012-02-17 Block Arthur R (SVP, GC and Secretary) Sale 99,437 28.21 2,804,819
2012-02-17 Block Arthur R (SVP, GC and Secretary) Option Ex 328,008 18.15 5,952,361
2012-02-17 Salva Lawrence J (SVP & Controller) Sale 13,599 27.99 380,636
2012-02-17 Salva Lawrence J (SVP & Controller) Option Ex 46,875 15.89 744,984
2012-02-17 Cohen David L (Executive Vice President) Option Ex 625,125 16.62 10,390,827
2012-02-17 Burke Stephen B (Executive Vice President) Sale 269,291 28.28 7,615,549
2012-02-17 Burke Stephen B (Executive Vice President) Option Ex 1,158,750 16.62 19,260,742
2012-02-17 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 1,286,250 18.08 23,255,399
2012-01-18 Block Arthur R (SVP, GC and Secretary) Option Ex 14,724 .00 0
2012-01-09 Burke Stephen B (Executive Vice President) Option Ex 450,000 23.66 10,647,000
2012-01-09 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 1,125,000 23.66 26,617,500
2012-01-04 Block Arthur R (SVP, GC and Secretary) Option Ex 187,500 23.66 4,436,250
2012-01-04 Roberts Ralph J (Director) Option Ex 900,000 23.66 21,294,000
2012-01-03 Bacon Kenneth J (Director) Option Ex 13,854 .00 0
2012-01-03 Salva Lawrence J (SVP & Controller) Option Ex 135,000 23.66 3,194,100
2012-01-03 Burke Stephen B (Executive Vice President) Option Ex 750,000 23.27 17,450,250
2011-12-18 Salva Lawrence J (SVP & Controller) Option Ex 6,024 .00 0
2011-07-04 Angelakis Michael J (EVP and CFO) Option Ex 168,635 .00 0
2011-06-15 Cook J Michael (Director) Option Ex 2,986 19.31 57,668
2011-05-09 Angelakis Michael J (EVP and CFO) Buy 25,000 25.33 633,325
2011-05-09 Smit Neil (Executive Vice President) Option Ex 72,100 .00 0
2011-05-06 Sovern Michael I (Director) Sale 419 25.68 10,759
2011-05-06 Sovern Michael I (Director) Option Ex 2,988 20.16 60,238
2011-04-26 Angelakis Michael J (EVP and CFO) Option Ex 28,755 .00 0
2011-04-26 Smit Neil (Executive Vice President) Option Ex 18,750 .00 0
2011-04-26 Block Arthur R (SVP, GC and Secretary) Option Ex 5,775 .00 0
2011-04-26 Salva Lawrence J (SVP & Controller) Option Ex 5,415 .00 0
2011-04-26 Cohen David L (Executive Vice President) Option Ex 22,335 .00 0
2011-04-26 Burke Stephen B (Executive Vice President) Option Ex 38,025 .00 0
2011-04-26 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 47,205 .00 0
2011-03-30 Angelakis Michael J (EVP and CFO) Option Ex 18,828 .00 0
2011-03-30 Burke Stephen B (Executive Vice President) Sale 180,000 24.71 4,448,520
2011-03-28 Angelakis Michael J (EVP and CFO) Option Ex 24,840 .00 0
2011-03-28 Block Arthur R (SVP, GC and Secretary) Option Ex 5,085 .00 0
2011-03-28 Salva Lawrence J (SVP & Controller) Sale 19,919 24.49 487,856
2011-03-28 Salva Lawrence J (SVP & Controller) Option Ex 5,085 .00 0
2011-03-28 Cohen David L (Executive Vice President) Option Ex 19,290 .00 0
2011-03-28 Burke Stephen B (Executive Vice President) Option Ex 33,120 .00 0
2011-03-28 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 41,400 .00 0
2011-03-27 Angelakis Michael J (EVP and CFO) Option Ex 36,000 .00 0
2011-03-27 Block Arthur R (SVP, GC and Secretary) Option Ex 7,110 .00 0
2011-03-27 Salva Lawrence J (SVP & Controller) Option Ex 7,110 .00 0
2011-03-27 Cohen David L (Executive Vice President) Option Ex 27,750 .00 0
2011-03-27 Burke Stephen B (Executive Vice President) Option Ex 47,250 .00 0
2011-03-27 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 58,500 .00 0
2011-03-20 Block Arthur R (SVP, GC and Secretary) Option Ex 3,540 .00 0
2011-03-20 Salva Lawrence J (SVP & Controller) Option Ex 3,540 .00 0
2011-03-16 Block Arthur R (SVP, GC and Secretary) Option Ex 3,840 .00 0
2011-03-16 Salva Lawrence J (SVP & Controller) Option Ex 3,840 .00 0
2011-03-16 Cohen David L (Executive Vice President) Option Ex 19,400 .00 0
2011-03-16 Burke Stephen B (COO & Executive Vice President) Option Ex 33,312 .00 0
2011-03-16 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 41,640 .00 0
2011-03-16 Roberts Ralph J (Director) Option Ex 14,970 .00 0
2011-03-10 Block Arthur R (SVP, GC and Secretary) Option Ex 14,820 .00 0
2011-03-10 Salva Lawrence J (SVP & Controller) Option Ex 14,820 .00 0
2011-03-10 Cohen David L (Executive Vice President) Option Ex 51,425 .00 0
2011-03-10 Burke Stephen B (COO & Executive Vice President) Option Ex 88,440 .00 0
2011-03-10 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 110,550 .00 0
2011-03-10 Roberts Ralph J (Director) Option Ex 58,200 .00 0
2011-03-01 Brodsky Julian A (Director) Sale 10,000 24.16 241,650
2011-02-22 Block Arthur R (SVP, GC and Secretary) Sale 72,804 24.70 1,798,040
2011-02-22 Block Arthur R (SVP, GC and Secretary) Option Ex 414,375 16.57 6,864,121
2011-02-22 Cohen David L (Executive Vice President) Sale 120,486 23.78 2,865,639
2011-02-22 Cohen David L (Executive Vice President) Option Ex 827,250 15.89 13,147,484
2011-02-18 Salva Lawrence J (SVP & Controller) Sale 22,967 24.55 563,954
2011-02-01 Brodsky Julian A (Director) Sale 30,000 21.80 654,030
2011-01-20 Block Arthur R (SVP, GC and Secretary) Option Ex 10,500 .00 0
2011-01-20 Salva Lawrence J (SVP & Controller) Option Ex 10,500 .00 0
2011-01-18 Angelakis Michael J (EVP and CFO) Option Ex 174,015 .00 0
2011-01-18 Block Arthur R (SVP, GC and Secretary) Option Ex 14,724 .00 0
2011-01-18 Salva Lawrence J (SVP & Controller) Option Ex 6,024 .00 0
2011-01-14 Breen Edward D (Director) Option Ex 5,058 .00 0
2011-01-03 Brodsky Julian A (Director) Sale 30,000 21.11 633,210
2010-12-17 Salva Lawrence J (SVP & Controller) Sale 18,116 21.48 389,131
2010-12-01 Brodsky Julian A (Director) Sale 30,000 19.66 589,710
2010-11-20 Breen Edward D (Director) Option Ex 5,527 .00 0
2010-11-01 Block Arthur R (SVP, GC and Secretary) Sale 48,663 20.60 1,002,457
2010-11-01 Brodsky Julian A (Director) Sale 20,000 19.34 386,700
2010-08-03 Roberts Brian L (Chairman of Board, Pres. & CEO) Sale 625,000 18.69 11,683,125
2010-05-24 Angelakis Michael J (EVP and CFO) Buy 30,000 16.89 506,580
2010-05-03 Salva Lawrence J (SVP & Controller) Sale 15,043 20.46 307,779
2010-04-29 Salva Lawrence J (SVP & Controller) Option Ex 12,000 .00 0
2010-04-27 Angelakis Michael J (EVP and CFO) Option Ex 36,000 .00 0
2010-04-27 Block Arthur R (SVP, GC and Secretary) Option Ex 7,110 .00 0
2010-04-27 Salva Lawrence J (SVP & Controller) Option Ex 7,110 .00 0
2010-04-27 Cohen David L (Executive Vice President) Option Ex 27,750 .00 0
2010-04-27 Burke Stephen B (COO & Executive Vice President) Option Ex 47,250 .00 0
2010-04-27 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 58,500 .00 0
2010-04-20 Block Arthur R (SVP, GC and Secretary) Option Ex 7,080 .00 0
2010-04-20 Salva Lawrence J (SVP & Controller) Option Ex 7,080 .00 0
2010-03-29 Salva Lawrence J (SVP & Controller) Sale 15,375 18.47 283,976
2010-03-28 Angelakis Michael J (EVP and CFO) Option Ex 24,840 .00 0
2010-03-28 Block Arthur R (SVP, GC and Secretary) Option Ex 5,085 .00 0
2010-03-28 Salva Lawrence J (SVP & Controller) Option Ex 5,085 .00 0
2010-03-28 Cohen David L (Executive Vice President) Option Ex 19,290 .00 0
2010-03-28 Burke Stephen B (COO & Executive Vice President) Option Ex 33,120 .00 0
2010-03-28 Roberts Brian L (Chairman of Board, Pres. & CEO) Option Ex 41,400 .00 0
2010-03-16 Block Arthur R (SVP, GC and Secretary) Option Ex 3,840 .00 0
2010-03-16 Salva Lawrence J (SVP & Controller) Option Ex 3,840 .00 0
2010-03-16 Roberts Ralph J (Director) Option Ex 14,970 .00 0
2010-03-14 Block Arthur R (SVP, GC and Secretary) Option Ex 11,699 .00 0
2010-03-14 Salva Lawrence J (SVP & Controller) Option Ex 11,699 .00 0

Insider trading activities including stock purchases, stock sales, and option exercises of CMCSA listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Comcast Corp (symbol CMCSA, CIK number 1166691) see the Securities and Exchange Commission (SEC) website.