Insider Trading activities of Nxstage Medical, Inc. insiders. , Part 7

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Nxstage Medical, Inc. since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Nxstage Medical, Inc. since year 2005. (See page 1 of this report.) Table 2 shows the detailed insider transactions of Nxstage Medical, Inc. since 2005. The reporting company's ticker symbol is NXTM. The reporting company's CIK number is 1333170.
The total value of stock buying since 2005 is $43,761,985.
The total value of stock sales since 2005 is $246,071,088.
The total value of stock option exercises since 2005 is $25,509,498.



Table 2. Detailed insider stock purchases, sales, and option exercises of Nxstage Medical, Inc. insiders (NXTM) , Part 7
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2010-10-18 Shea Thomas (SVP Manufacturing Operations) Option Ex 1,000 2.11 2,110
2010-10-18 Utterberg David S (Director) Sale 58,914 21.47 1,265,060
2010-10-18 Swan Winifred L (SVP and General Counsel) Sale 3,000 21.35 64,050
2010-10-15 Utterberg David S (Director) Sale 87,828 21.20 1,861,953
2010-10-14 Utterberg David S (Director) Sale 282,750 20.77 5,871,586
2010-10-13 Burbank Jeffrey H (President & CEO) Sale 13,000 20.93 272,155
2010-10-12 Brown Robert S. (Sr. Vice President, CFO) Sale 5,000 20.75 103,750
2010-10-12 Brown Robert S. (Sr. Vice President, CFO) Option Ex 2,000 2.11 4,220
2010-09-21 Utterberg David S (Director) Sale 200,000 18.28 3,655,800
2010-09-20 Utterberg David S (Director) Sale 113,242 17.21 1,949,234
2010-09-17 Shea Thomas (SVP Manufacturing Operations) Sale 2,000 16.36 32,720
2010-09-17 Shea Thomas (SVP Manufacturing Operations) Option Ex 1,000 2.11 2,110
2010-09-17 Utterberg David S (Director) Sale 41,180 16.29 670,616
2010-09-16 Utterberg David S (Director) Sale 27,548 16.29 448,784
2010-09-16 Swan Winifred L (SVP and General Counsel) Sale 3,000 16.20 48,600
2010-09-16 Turk Joseph E Jr (SVP Commercial Operations) Sale 2,000 16.20 32,400
2010-09-15 Burbank Jeffrey H (President & CEO) Sale 13,000 16.22 210,820
2010-09-15 Utterberg David S (Director) Sale 37,916 16.26 616,665
2010-09-15 Isaly Samuel D Sale 54,000 16.23 876,420
2010-09-14 Brown Robert S. (Sr. Vice President, CFO) Sale 5,000 16.60 83,000
2010-09-14 Brown Robert S. (Sr. Vice President, CFO) Option Ex 2,000 2.11 4,220
2010-09-14 Utterberg David S (Director) Sale 39,081 16.53 645,852
2010-09-14 Chambon Philippe (Director) Option Ex 12,000 12.59 151,080
2010-09-14 Isaly Samuel D Sale 96,000 16.49 1,583,039
2010-09-13 Isaly Samuel D Sale 100,000 16.70 1,670,000
2010-09-10 Isaly Samuel D Sale 193,900 16.52 3,203,228
2010-09-09 Isaly Samuel D Sale 8,800 16.36 143,968
2010-09-08 Isaly Samuel D Sale 7,000 16.50 115,500
2010-09-07 Isaly Samuel D Sale 40,100 16.79 673,279
2010-08-23 Credit Suisse Ag/ Sale 133,263 15.70 2,091,562
2010-08-20 Credit Suisse Ag/ Sale 98,173 16.15 1,585,493
2010-08-19 Brown Robert S. (Sr. Vice President, CFO) Sale 5,000 16.61 83,050
2010-08-19 Brown Robert S. (Sr. Vice President, CFO) Option Ex 2,000 2.11 4,220
2010-08-19 Credit Suisse Ag/ Sale 41,146 16.48 678,086
2010-08-18 Burbank Jeffrey H (President & CEO) Sale 13,000 16.79 218,218
2010-08-18 Isaly Samuel D Sale 100,200 16.94 1,697,388
2010-08-17 Shea Thomas (SVP Manufacturing Operations) Sale 2,000 17.20 34,400
2010-08-17 Shea Thomas (SVP Manufacturing Operations) Option Ex 1,000 2.11 2,110
2010-08-17 Swan Winifred L (SVP and General Counsel) Sale 3,109 17.20 53,474
2010-08-17 Isaly Samuel D Sale 288,000 17.06 4,913,280
2010-08-16 Chambon Philippe (Director) Sale 100,000 17.01 1,701,000
2010-08-16 Isaly Samuel D Sale 112,000 17.11 1,916,320
2010-08-16 Credit Suisse Ag/ Sale 100,000 17.01 1,701,000
2010-08-13 Giannini Daniel A (Director) Option Ex 15,000 12.59 188,850
2010-08-11 Chambon Philippe (Director) Sale 500,000 16.00 8,000,000
2010-08-11 Credit Suisse Ag/ Sale 500,000 16.00 8,000,000
2010-08-10 Turk Joseph E Jr (SVP Commercial Operations) Sale 2,000 15.88 31,760
2010-08-09 Chambon Philippe (Director) Sale 44,700 16.19 723,871
2010-08-09 Credit Suisse Ag/ Sale 44,700 16.19 723,871
2010-08-06 Chambon Philippe (Director) Sale 33,400 16.03 535,402
2010-08-06 Credit Suisse Ag/ Sale 33,400 16.03 535,402
2010-08-05 Chambon Philippe (Director) Sale 37,100 16.36 606,881
2010-08-05 Credit Suisse Ag/ Sale 37,100 16.36 606,881
2010-08-04 Chambon Philippe (Director) Sale 100,000 16.33 1,632,600
2010-08-04 Isaly Samuel D Sale 101,100 16.31 1,648,738
2010-08-04 Credit Suisse Ag/ Sale 100,000 16.36 1,635,500
2010-08-03 Chambon Philippe (Director) Sale 300,000 16.32 4,894,800
2010-08-03 Isaly Samuel D Sale 199,200 16.41 3,269,469
2010-08-03 Credit Suisse Ag/ Sale 300,000 16.35 4,903,800
2010-08-02 Isaly Samuel D Sale 17,400 16.39 285,099
2010-07-30 Chambon Philippe (Director) Sale 28,800 16.09 463,507
2010-07-30 Credit Suisse Ag/ Sale 28,800 16.09 463,392
2010-07-29 Chambon Philippe (Director) Sale 48,800 16.07 784,216
2010-07-29 Credit Suisse Ag/ Sale 48,800 16.07 784,216
2010-07-28 Utterberg David S (Director) Sale 715,000 15.95 11,406,395
2010-07-28 Chambon Philippe (Director) Sale 130,200 16.90 2,200,380
2010-07-28 Isaly Samuel D Sale 128,000 16.66 2,131,968
2010-07-28 Credit Suisse Ag/ Sale 130,200 16.90 2,200,380
2010-07-27 Moore Craig W (Director) Sale 8,945 16.89 151,081
2010-07-27 Moore Craig W (Director) Option Ex 12,000 12.59 151,080
2010-07-27 Chambon Philippe (Director) Sale 204,473 16.97 3,469,906
2010-07-27 Reid Perper (Director) Sale 8,945 16.89 151,081
2010-07-27 Reid Perper (Director) Option Ex 12,000 12.59 151,080
2010-07-27 Isaly Samuel D Sale 572,556 16.93 9,691,082
2010-07-27 Credit Suisse Ag/ Sale 204,473 16.97 3,469,906
2010-07-19 Shea Thomas (SVP Manufacturing Operations) Sale 2,000 13.99 27,980
2010-07-19 Shea Thomas (SVP Manufacturing Operations) Option Ex 1,000 2.11 2,110
2010-07-15 Brown Robert S. (Sr. Vice President, CFO) Sale 5,000 14.08 70,400
2010-07-15 Brown Robert S. (Sr. Vice President, CFO) Option Ex 2,000 2.11 4,220
2010-07-14 Burbank Jeffrey H (President & CEO) Sale 13,000 14.32 186,108
2010-07-12 Swan Winifred L (SVP and General Counsel) Sale 3,107 14.50 45,051
2010-07-07 Turk Joseph E Jr (SVP Commercial Operations) Sale 2,000 14.01 28,020
2010-06-22 Turk Joseph E Jr (SVP Commercial Operations) Sale 2,000 13.92 27,840
2010-06-17 Shea Thomas (SVP Manufacturing Operations) Sale 2,000 13.88 27,760
2010-06-17 Shea Thomas (SVP Manufacturing Operations) Option Ex 1,000 2.11 2,110
2010-06-17 Brown Robert S. (Sr. Vice President, CFO) Sale 5,000 13.88 69,400
2010-06-17 Brown Robert S. (Sr. Vice President, CFO) Option Ex 2,000 2.11 4,220
2010-06-16 Burbank Jeffrey H (President & CEO) Sale 13,000 13.82 179,608
2010-06-15 Swan Winifred L (SVP and General Counsel) Sale 3,107 13.81 42,907
2010-05-20 Brown Robert S. (Sr. Vice President, CFO) Sale 5,000 11.97 59,850
2010-05-20 Brown Robert S. (Sr. Vice President, CFO) Option Ex 2,000 2.11 4,220
2010-05-19 Burbank Jeffrey H (President & CEO) Sale 13,000 12.70 165,126
2010-05-19 Utterberg David S (Director) Sale 248,609 12.32 3,064,105
2010-05-18 Utterberg David S (Director) Sale 173,424 13.21 2,291,277
2010-05-18 Swan Winifred L (SVP and General Counsel) Sale 3,107 13.53 42,037
2010-05-18 Turk Joseph E Jr (SVP Commercial Operations) Sale 2,000 13.53 27,060
2010-05-17 Shea Thomas (SVP Manufacturing Operations) Sale 2,000 14.06 28,120
2010-05-17 Shea Thomas (SVP Manufacturing Operations) Option Ex 1,000 2.11 2,110
2010-05-17 Utterberg David S (Director) Sale 404,000 13.64 5,509,348
2010-03-16 Utterberg David S (Director) Sale 50,000 10.56 528,100
2010-03-16 Turk Joseph E Jr (SVP Commercial Operations) Sale 4,800 10.52 50,486
2010-03-09 Webb Michael J. (SVP, Quality & Regulatory) Sale 23,159 10.03 232,354
2010-03-09 Webb Michael J. (SVP, Quality & Regulatory) Option Ex 23,159 .00 0
2010-03-08 Webb Michael J. (SVP, Quality & Regulatory) Sale 54,124 9.86 533,446
2010-03-08 Webb Michael J. (SVP, Quality & Regulatory) Option Ex 54,124 .00 0
2010-03-01 Swan Winifred L (SVP and General Counsel) Sale 29,211 10.63 310,571
2010-03-01 Swan Winifred L (SVP and General Counsel) Option Ex 29,211 3.25 94,935
2010-03-01 Lewis Earl R (Director) Option Ex 22,166 3.81 84,452
2009-12-15 Deerfield Special Situations Fund International Ltd (10% Owner) Sale 92,100 7.67 706,683
2009-12-11 Deerfield Special Situations Fund International Ltd (10% Owner) Sale 10,288 12.73 131,017
2009-12-10 Deerfield Special Situations Fund International Lt (10% Owner) Sale 17,786 7.37 131,082
2009-12-09 Deerfield Special Situations Fund International Lt (10% Owner) Sale 4,311 7.36 31,728
2009-12-08 Deerfield Special Situations Fund International Lt (10% Owner) Sale 32,449 7.37 239,149
2009-12-07 Deerfield Special Situations Fund International Lt (10% Owner) Sale 29,163 7.37 214,931
2009-12-04 Deerfield Special Situations Fund International Lt (10% Owner) Sale 20,665 7.37 152,301
2009-12-03 Deerfield Special Situations Fund International Lt (10% Owner) Sale 156,400 7.44 1,163,616
2009-10-09 Deerfield Special Situations Fund International Lt (10% Owner) Sale 11,602 6.74 78,139
2009-09-29 Deerfield Special Situations Fund International Lt (10% Owner) Sale 3,669 7.07 25,939
2009-09-23 Deerfield Special Situations Fund International Lt (10% Owner) Sale 33,168 6.74 223,552
2009-09-21 Deerfield Special Situations Fund International Lt (10% Owner) Sale 993 6.72 6,672
2009-09-18 Deerfield Special Situations Fund International Lt (10% Owner) Sale 37,591 6.73 252,987
2009-09-17 Deerfield Special Situations Fund International Lt (10% Owner) Sale 30,869 6.74 208,057
2009-09-16 Deerfield Special Situations Fund International Lt (10% Owner) Sale 28,625 6.72 192,302
2009-09-15 Deerfield Special Situations Fund International Lt (10% Owner) Sale 30,805 6.72 207,009
2009-09-14 Deerfield Special Situations Fund International Lt (10% Owner) Sale 64,060 6.74 431,764
2009-09-11 Deerfield Special Situations Fund International Lt (10% Owner) Sale 103,148 6.97 719,251
2009-06-12 Deerfield Special Situations Fund International Lt (10% Owner) Sale 27,078 5.96 161,384
2008-12-16 Burbank Jeffrey H (President & CEO) Option Ex 14,146 .34 4,809
2008-08-26 Isaly Samuel D (Director) Buy 27,700 3.50 97,033
2008-08-25 Isaly Samuel D (Director) Buy 108,900 3.37 367,101
2008-08-21 Isaly Samuel D (Director) Buy 26,100 3.25 84,825
2008-08-21 Phildius Peter P (Director) Sale 13,570 3.28 44,509
2008-08-13 Phildius Peter P (Director) Sale 6,500 4.03 26,208
2008-08-12 Moore Craig W (Director) Buy 10,000 4.00 40,000
2008-08-11 Phildius Peter P (Director) Sale 12,100 4.21 50,953
2008-08-11 Phildius Peter P (Director) Option Ex 32,170 .37 11,902
2008-08-01 Credit Suisse/ (10% Owner) Buy 1,022,222 4.50 4,599,999
2008-05-23 Isaly Samuel D (Director) Buy 5,555,556 4.50 25,000,002
2006-06-09 Chambon Philippe (Director) Buy 350,000 8.75 3,062,500
2006-06-09 Credit Suisse/ (10% Owner) Buy 350,000 8.75 3,062,500
2006-06-08 Burbank Jeffrey H (President & CEO) Sale 54,711 8.22 449,997
2006-05-26 Atlas Venture Associates Iii L P (10% Owner) Sale 6,795 10.95 74,405
2005-10-27 Utterberg David S (Director) Buy 73,789 10.00 737,890
2005-10-27 Chambon Philippe (Director) Buy 187,035 10.00 1,870,350
2005-10-27 Reid Perper (Director) Buy 51,755 10.00 517,550
2005-10-27 Atlas Venture Associates V Lp (10% Owner) Buy 99,923 10.00 999,230
2005-10-27 Formela Jean Francois Buy 99,923 10.00 999,230
2005-10-27 Credit Suisse First Boston/ (Other) Buy 187,035 10.00 1,870,350

Insider trading activities including stock purchases, stock sales, and option exercises of NXTM listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Nxstage Medical, Inc. (symbol NXTM, CIK number 1333170) see the Securities and Exchange Commission (SEC) website.