Insider Trading activities of Northstar Neuroscience, Inc. insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Northstar Neuroscience, Inc. since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Northstar Neuroscience, Inc. since year 2005. Table 2 shows the detailed insider transactions of Northstar Neuroscience, Inc. since 2005. The reporting company's ticker symbol is NSTR. The reporting company's CIK number is 1351509.
The total value of stock buying since 2005 is $7,897,910.
The total value of stock sales since 2005 is $39,716,050.
The total value of stock option exercises since 2005 is $1,323,123.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Northstar Neuroscience, Inc. (NSTR).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2009-06 0 $0 0 $0 747,138 $1,003,242
2009-03 0 $0 350,000 $634,550 175,500 $304,881
2009-01 0 $0 606,964 $1,021,923 0 $0
2008-11 1,085,000 $1,248,990 0 $0 0 $0
2008-05 375,000 $681,820 0 $0 0 $0
2008-04 3,124,004 $5,617,329 0 $0 0 $0
2008-03 223,794 $349,771 0 $0 0 $0
2007-08 0 $0 0 $0 20,000 $15,000
2007-07 0 $0 3,214,535 $32,466,803 0 $0
2007-05 0 $0 398,971 $5,264,423 0 $0
2007-03 0 $0 9,085 $99,208 0 $0
2006-11 0 $0 17,530 $229,143 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Northstar Neuroscience, Inc. insiders (NSTR)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2009-06-24 Bowers John S Jr (Director) Option Ex 491,348 1.32 650,053
2009-06-19 Mcnamara Robert E (Director) Option Ex 18,700 1.87 34,969
2009-06-19 Winslow Carol D (Director) Option Ex 18,700 1.87 34,969
2009-06-04 Levy Alan J (Director) Option Ex 218,390 1.30 283,251
2009-03-24 Barclays Plc (10% Owner) Sale 350,000 1.81 634,550
2009-03-11 Dow Brian B (VP-Finance, CFO, Secretary) Option Ex 97,500 1.82 176,962
2009-03-11 Sheffield Deborah L. (VP-Clinical&Regulatory Affairs) Option Ex 78,000 1.64 127,919
2009-01-07 Barclays Plc (10% Owner) Sale 106,964 1.80 193,070
2009-01-06 Barclays Plc (10% Owner) Sale 17,700 1.79 31,612
2009-01-05 Barclays Plc (10% Owner) Sale 482,300 1.65 797,241
2008-11-18 Tang Capital Partners Lp (10% Owner) Buy 685,000 1.09 749,390
2008-11-13 Tang Capital Partners Lp (10% Owner) Buy 400,000 1.25 499,600
2008-05-14 Tang Capital Partners Lp (10% Owner) Buy 37,300 1.80 67,028
2008-05-13 Tang Capital Partners Lp (10% Owner) Buy 17,130 1.78 30,525
2008-05-12 Tang Capital Partners Lp (10% Owner) Buy 13,895 1.80 25,011
2008-05-09 Tang Capital Partners Lp (10% Owner) Buy 23,575 1.80 42,411
2008-05-08 Tang Capital Partners Lp (10% Owner) Buy 33,100 1.80 59,745
2008-05-07 Tang Capital Partners Lp (10% Owner) Buy 100,000 1.83 183,100
2008-05-02 Tang Capital Partners Lp (10% Owner) Buy 100,000 1.83 183,000
2008-05-01 Tang Capital Partners Lp (10% Owner) Buy 50,000 1.82 91,000
2008-04-29 Tang Capital Partners Lp (10% Owner) Buy 200,000 1.81 361,200
2008-04-28 Tang Capital Partners Lp (10% Owner) Buy 25,000 1.79 44,750
2008-04-25 Tang Capital Partners Lp (10% Owner) Buy 185,000 1.78 329,485
2008-04-24 Tang Capital Partners Lp (10% Owner) Buy 170,000 1.81 307,530
2008-04-18 Tang Capital Partners Lp (10% Owner) Buy 36,700 1.80 66,060
2008-04-17 Tang Capital Partners Lp (10% Owner) Buy 67,600 1.78 120,530
2008-04-16 Tang Capital Partners Lp (10% Owner) Buy 100,000 1.79 179,300
2008-04-15 Tang Capital Partners Lp (10% Owner) Buy 126,438 1.77 223,795
2008-04-14 Tang Capital Partners Lp (10% Owner) Buy 41,587 1.79 74,607
2008-04-11 Tang Capital Partners Lp (10% Owner) Buy 83,413 1.81 150,894
2008-04-10 Tang Capital Partners Lp (10% Owner) Buy 50,000 1.81 90,400
2008-04-09 Tang Capital Partners Lp (10% Owner) Buy 5,900 1.81 10,679
2008-04-08 Tang Capital Partners Lp (10% Owner) Buy 25,000 1.83 45,750
2008-04-07 Tang Capital Partners Lp (10% Owner) Buy 150,000 1.84 276,000
2008-04-04 Tang Capital Partners Lp (10% Owner) Buy 300,000 1.87 561,000
2008-04-03 Tang Capital Partners Lp (10% Owner) Buy 360,000 1.82 655,560
2008-04-02 Tang Capital Partners Lp (10% Owner) Buy 61,666 1.77 109,148
2008-04-02 Tang Kevin C (10% Owner) Buy 525,700 1.71 898,421
2008-04-01 Tang Kevin C (10% Owner) Buy 70,000 1.67 117,180
2008-03-31 Tang Kevin C (10% Owner) Buy 19,000 1.56 29,640
2008-03-28 Tang Kevin C (10% Owner) Buy 160,000 1.57 250,880
2008-03-27 Tang Kevin C (10% Owner) Buy 44,794 1.55 69,251
2007-08-28 Levy Alan J (Director) Option Ex 20,000 .75 15,000
2007-07-24 Boston Scientific Corp (10% Owner) Sale 3,214,535 10.10 32,466,803
2007-05-25 Gliner Bradford E (Vice President, Research) Sale 4,000 13.50 54,000
2007-05-15 Treu Jesse I (Director) Sale 379,000 13.20 5,002,800
2007-05-04 Treu Jesse I (Director) Sale 15,971 13.00 207,623
2007-03-05 Treu Jesse I (Director) Sale 9,085 10.92 99,208
2006-11-06 Treu Jesse I (Director) Sale 12,530 13.10 164,143
2006-11-03 Gliner Bradford E (Vice President, Research) Sale 5,000 13.00 65,000

Insider trading activities including stock purchases, stock sales, and option exercises of NSTR listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Northstar Neuroscience, Inc. (symbol NSTR, CIK number 1351509) see the Securities and Exchange Commission (SEC) website.