Insider Trading activities of Kosan Biosciences Inc insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Kosan Biosciences Inc since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Kosan Biosciences Inc since year 2005. Table 2 shows the detailed insider transactions of Kosan Biosciences Inc since 2005. The reporting company's ticker symbol is KOSN. The reporting company's CIK number is 1110206.
The total value of stock buying since 2005 is $450,000,192,905.
The total value of stock sales since 2005 is $5,854,729.
The total value of stock option exercises since 2005 is $0.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Kosan Biosciences Inc (KOSN).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2008-03 34,172 $53,095 0 $0 0 $0
2007-09 2,000 $10,120 0 $0 0 $0
2007-03 0 $0 50,000 $263,050 0 $0
2006-10 10,000 $39,930 0 $0 0 $0
2006-09 0 $0 1,000,000 $3,030,000 0 $0
2006-08 0 $0 53,500 $176,904 0 $0
2006-07 0 $0 5,000 $17,500 0 $0
2006-05 300,000 $450,000,000,000 361,551 $1,807,928 0 $0
2006-04 0 $0 94,849 $501,459 0 $0
2006-03 0 $0 6,400 $37,925 0 $0
2006-02 0 $0 3,992 $19,963 0 $0
2005-12 20,000 $89,760 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Kosan Biosciences Inc insiders (KOSN)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2008-03-31 Licari Peter (SVP Manufacturing & Operations) Buy 4,990 1.45 7,250
2008-03-31 Titus Gary (Sr. VP and CFO) Buy 1,092 1.45 1,586
2008-03-14 Kim Helen Susan (President, CBO) Buy 16,000 1.64 26,240
2008-03-10 Titus Gary (Sr. VP and CFO) Buy 3,040 1.31 3,976
2008-03-06 Wright Jonathan K. (SVP and General Counsel) Buy 1,300 1.48 1,921
2008-03-05 Wright Jonathan K. (SVP and General Counsel) Buy 1,500 1.54 2,310
2008-03-05 Titus Gary (Sr. VP and CFO) Buy 6,250 1.57 9,812
2007-09-27 Johnson Robert G Jr Md Phd (President and CEO) Buy 2,000 5.06 10,120
2007-03-26 Khosla Chaitan Phd (Director) Sale 50,000 5.26 263,050
2006-10-31 Titus Gary (Sr. VP and CFO) Buy 10,000 3.99 39,930
2006-09-05 Santi Daniel V Md Phd (10% Owner) Sale 1,000,000 3.03 3,030,000
2006-08-16 Santi Daniel V Md Phd (10% Owner) Sale 2,891 3.00 8,673
2006-08-15 Santi Daniel V Md Phd (10% Owner) Sale 5,200 3.04 15,787
2006-08-14 Santi Daniel V Md Phd (10% Owner) Sale 203 3.00 609
2006-08-11 Santi Daniel V Md Phd (10% Owner) Sale 16,706 3.00 50,118
2006-08-04 Santi Daniel V Md Phd (10% Owner) Sale 22,536 3.59 80,814
2006-08-02 Santi Daniel V Md Phd (10% Owner) Sale 32 3.50 112
2006-08-01 Santi Daniel V Md Phd (10% Owner) Sale 5,932 3.50 20,791
2006-07-31 Santi Daniel V Md Phd (10% Owner) Sale 5,000 3.50 17,500
2006-05-05 Deleage Jean (Director) Buy 300,000 1,500,000.00 450,000,000,000
2006-05-05 Santi Daniel V Md Phd (10% Owner) Sale 300,000 5.00 1,500,000
2006-05-03 Santi Daniel V Md Phd (10% Owner) Sale 34,725 5.00 173,798
2006-05-02 Santi Daniel V Md Phd (10% Owner) Sale 26,826 5.00 134,130
2006-04-28 Santi Daniel V Md Phd (10% Owner) Sale 12,941 5.00 64,705
2006-04-27 Santi Daniel V Md Phd (10% Owner) Sale 14,935 5.00 74,675
2006-04-26 Santi Daniel V Md Phd (10% Owner) Sale 1,300 5.00 6,500
2006-04-25 Santi Daniel V Md Phd (10% Owner) Sale 8,773 5.00 43,865
2006-04-24 Santi Daniel V Md Phd (10% Owner) Sale 500 5.00 2,500
2006-04-18 Santi Daniel V Md Phd (10% Owner) Sale 28,000 5.40 151,116
2006-04-18 Khosla Chaitan Phd (Director) Sale 3,200 5.40 17,296
2006-04-17 Santi Daniel V Md Phd (10% Owner) Sale 22,000 5.57 122,518
2006-04-17 Khosla Chaitan Phd (Director) Sale 3,200 5.71 18,284
2006-03-15 Khosla Chaitan Phd (Director) Sale 3,200 5.93 18,972
2006-03-14 Khosla Chaitan Phd (Director) Sale 3,200 5.92 18,953
2006-02-09 Khosla Chaitan Phd (Director) Sale 792 5.00 3,963
2006-02-08 Khosla Chaitan Phd (Director) Sale 3,200 5.00 16,000
2005-12-29 Santi Daniel V Md Phd (Chairman and CEO) Buy 20,000 4.49 89,760

Insider trading activities including stock purchases, stock sales, and option exercises of KOSN listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Kosan Biosciences Inc (symbol KOSN, CIK number 1110206) see the Securities and Exchange Commission (SEC) website.