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Insider Trading: Discovery Holding CO

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Discovery Holding CO in the last 24 months are illustrated in figures 1 and 2. Table 1 shows the monthly insider trading data of Discovery Holding CO since year 2005. Table 2 shows the detailed insider transactions of Discovery Holding CO since 2005. The reporting company's ticker symbol is DISC. The reporting company's CIK number is 1320482.
1 year chart,   5 day chart,   1 day chart.

The total value of stock buying since 2005 is $97,554,878. The total value of stock sales is $23,439,722. The total value of stock exercises is $26,385,624.


Figure 1. Monthly insider transaction values at Discovery Holding CO (DISC) in the past 24 months. The trade values of insider stock buys, sales, and option exercises are in logarithmic scale as shown on the right axis labels. The detailed monthly and daily insider transactions are listed in the 2 tables below.

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2007

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2008

  • 02

  • 03

  • 04

  • 05

  • 06

  • $21,210k

    $2,121k

    $212k

    $21k

  • Buy
  • Sale
  • Option Exercise

Figure 2. Average prices of insider buys, sales, and option exercises at Discovery Holding CO (DISC) in the past 24 months. See table 2 for insider transaction details.

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2007

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2008

  • 02

  • 03

  • 04

  • 05

  • 06

  • $28.26

    $21.20

    $14.13

    $7.07



Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Discovery Holding CO (DISC).
Trading Period
year-month  
Insider Buying     
Shares               Value ($)
Insider Sales     
Shares               Value ($)
Option Exercises     
Shares               Value ($)
2008-06 38,600 970,265 0 0 66,667 1,019,338
2008-04 0 0 0 0 1,281,873 21,210,725
2007-09 131,005 3,703,032 575,295 16,237,952 233,625 3,278,561
2007-05 0 0 315,218 7,201,770 50,000 877,000
2006-02 114,000 1,673,520 0 0 0 0
2005-09 1,521,909 23,174,169 0 0 0 0
2005-08 4,630,221 67,754,292 0 0 0 0
2005-07 20,000 279,600 0 0 0 0

Table 2. Detailed insider stock purchases, sales, and option exercises for Discovery Holding CO (DISC)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2008-06-14 Malone John C (Chairman, CEO) Option Exercise 66,667 15.29 1,019,338
2008-06-11 Gould Paul A Purchase 18,000 24.88 447,930
2008-06-10 Gould Paul A Purchase 20,600 25.36 522,335
2008-04-01 Malone John C (Chairman of the Board, CEO) Option Exercise 1,281,873 16.55 21,210,725
2007-09-28 Malone John C (Chairman, CEO) Purchase 54,805 29.20 1,600,123
2007-09-27 Tanabe Charles Y (Senior Vice President) Sale 78,500 28.59 2,243,958
2007-09-27 Tanabe Charles Y (Senior Vice President) Option Exercise 78,500 14.13 1,108,943
2007-09-27 Bennett Robert R (President) Sale 250,000 28.69 7,173,333
2007-09-26 Tanabe Charles Y (Senior Vice President) Sale 13,972 27.81 388,589
2007-09-26 Rosenthaler Albert E (Senior Vice President) Sale 86,280 27.83 2,403,861
2007-09-26 Rosenthaler Albert E (Senior Vice President) Option Exercise 86,280 13.19 1,138,320
2007-09-26 Malone John C (Chairman, CEO) Purchase 5,200 28.02 145,723
2007-09-25 Shean Christopher W (Senior Vice President) Sale 68,845 27.18 1,870,973
2007-09-25 Shean Christopher W (Senior Vice President) Option Exercise 68,845 14.98 1,031,298
2007-09-25 Malone John C (Chairman, CEO) Purchase 71,000 27.57 1,957,186
2007-09-14 Flowers David J A (Senior Vice President) Sale 5,000 26.12 130,600
2007-05-23 Tanabe Charles Y (Senior Vice President) Sale 50,000 23.38 1,168,818
2007-05-23 Tanabe Charles Y (Senior Vice President) Option Exercise 50,000 17.54 877,000
2007-05-23 Shean Christopher W (Senior Vice President) Sale 597 23.20 13,850
2007-05-18 Tanabe Charles Y (Senior Vice President) Sale 14,621 22.90 334,850
2007-05-16 Flowers David J A (Senior Vice President) Sale 1,356 22.77 30,876
2007-05-16 Malone John C (CEO, Chairman of the Board) Sale 240,000 22.74 5,456,509
2007-05-15 Flowers David J A (Senior Vice President) Sale 8,644 22.78 196,867
2006-02-07 Gould Paul A Purchase 114,000 14.68 1,673,520
2005-09-13 Malone John C (President, CEO, Chai) Purchase 172,154 15.18 2,612,436
2005-09-09 Malone John C (President, CEO, Chai) Purchase 841,452 15.24 12,821,204
2005-09-01 Malone John C (President, CEO, Chai) Purchase 1,000 15.81 15,806
2005-08-31 Malone John C (President, CEO, Chai) Purchase 7,200 16.00 115,200
2005-08-29 Malone John C (President, CEO, Chai) Purchase 1,096 16.00 17,536
2005-08-24 Malone John C (President, CEO, Chai) Purchase 218 16.00 3,488
2005-08-15 Malone John C (President, CEO, Chai) Purchase 160,000 14.85 2,375,520
2005-08-11 Wargo J David Purchase 6,000 14.70 88,200
2005-08-11 Malone John C (President, CEO, Chai) Purchase 2,081,600 14.81 30,829,536
2005-08-10 Malone John C (President, CEO, Chai) Purchase 832,700 14.10 11,742,734
2005-07-26 Gould Paul A Purchase 20,000 13.98 279,600

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Discovery Holding CO (symbol DISC, CIK number 1320482) see the Securities and Exchange Commission (SEC) website.

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