Insider Trading activities of Isilon Systems, Inc. insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Isilon Systems, Inc. since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Isilon Systems, Inc. since year 2005. Table 2 shows the detailed insider transactions of Isilon Systems, Inc. since 2005. The reporting company's ticker symbol is ISLN. The reporting company's CIK number is 1373671.
The total value of stock buying since 2005 is $4,459,736.
The total value of stock sales since 2005 is $95,936,261.
The total value of stock option exercises since 2005 is $3,223,367.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Isilon Systems, Inc. (ISLN).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2010-12 0 $0 5,000 $169,050 0 $0
2010-11 0 $0 103,360 $3,067,831 74,360 $261,608
2010-10 0 $0 9,360 $255,340 57,360 $1,282,082
2010-09 0 $0 33,360 $775,983 33,360 $646,394
2010-08 50,000 $886,500 3,011,951 $55,200,073 107,180 $373,154
2010-07 0 $0 560,310 $9,678,741 10,000 $25,600
2010-06 0 $0 121,000 $1,681,580 25,000 $119,000
2010-05 0 $0 1,228,938 $17,535,524 69,300 $178,007
2010-04 0 $0 300,700 $4,033,064 45,700 $210,592
2010-03 0 $0 54,000 $465,101 0 $0
2010-02 0 $0 60,500 $447,836 0 $0
2010-01 0 $0 48,000 $333,060 0 $0
2009-12 0 $0 48,000 $321,420 0 $0
2009-11 0 $0 24,000 $134,088 0 $0
2009-10 0 $0 48,000 $326,424 0 $0
2009-09 0 $0 48,000 $281,976 0 $0
2009-08 0 $0 31,000 $156,446 0 $0
2009-07 0 $0 12,000 $60,179 0 $0
2009-05 17,511 $44,215 0 $0 0 $0
2009-04 65,727 $167,753 0 $0 0 $0
2009-02 421,268 $920,525 0 $0 0 $0
2008-11 521,409 $1,767,673 0 $0 0 $0
2008-08 116,000 $573,320 0 $0 0 $0
2008-05 10,000 $48,590 0 $0 0 $0
2008-04 20,000 $51,160 0 $0 0 $0
2007-10 0 $0 3,500 $27,160 3,500 $2,870
2007-09 0 $0 53,500 $483,219 37,264 $15,362
2007-08 0 $0 53,500 $502,166 98,201 $23,704
2007-04 0 $0 0 $0 163,451 $84,994

Table 2. Detailed insider stock purchases, sales, and option exercises of Isilon Systems, Inc. insiders (ISLN)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2010-12-07 Weld Gwen E (VP HR and Organizational Dev) Sale 5,000 33.81 169,050
2010-11-24 Godwin Mary E. (VP Operations) Sale 4,680 33.74 157,903
2010-11-24 Godwin Mary E. (VP Operations) Option Ex 4,680 3.74 17,479
2010-11-17 Patel Sujal M (President & CEO) Sale 12,000 33.73 404,736
2010-11-16 Patel Sujal M (President & CEO) Sale 12,000 33.73 404,808
2010-11-12 Godwin Mary E. (VP Operations) Sale 4,680 25.61 119,854
2010-11-12 Godwin Mary E. (VP Operations) Option Ex 4,680 3.74 17,479
2010-11-04 Weld Gwen E (VP HR and Organizational Dev) Sale 5,000 28.50 142,500
2010-11-01 Jurgensen Elliott Ren Jr Sale 5,000 28.51 142,550
2010-11-01 Jurgensen Elliott Ren Jr Option Ex 5,000 1.35 6,750
2010-11-01 Helsel Brett (SVP Engineering) Sale 60,000 28.26 1,695,480
2010-11-01 Helsel Brett (SVP Engineering) Option Ex 60,000 3.66 219,900
2010-10-25 Godwin Mary E. (VP Operations) Sale 4,680 29.39 137,545
2010-10-25 Godwin Mary E. (VP Operations) Option Ex 4,680 3.74 17,479
2010-10-20 Patel Sujal M (President & CEO) Option Ex 12,000 27.52 330,240
2010-10-19 Patel Sujal M (President & CEO) Option Ex 12,000 27.30 327,624
2010-10-12 Godwin Mary E. (VP Operations) Sale 4,680 25.17 117,795
2010-10-12 Godwin Mary E. (VP Operations) Option Ex 4,680 3.74 17,479
2010-10-07 Patel Sujal M (President & CEO) Option Ex 12,000 24.60 295,200
2010-10-06 Patel Sujal M (President & CEO) Option Ex 12,000 24.50 294,060
2010-09-24 Godwin Mary E. (VP Operations) Sale 4,680 23.80 111,384
2010-09-24 Godwin Mary E. (VP Operations) Option Ex 4,680 3.74 17,479
2010-09-21 Patel Sujal M (President & CEO) Option Ex 12,000 25.45 305,436
2010-09-20 Patel Sujal M (President & CEO) Option Ex 12,000 25.50 306,000
2010-09-13 Godwin Mary E. (VP Operations) Sale 4,680 23.17 108,435
2010-09-13 Godwin Mary E. (VP Operations) Option Ex 4,680 3.74 17,479
2010-09-10 Patel Sujal M (President & CEO) Sale 12,000 23.07 276,840
2010-09-09 Patel Sujal M (President & CEO) Sale 12,000 23.28 279,324
2010-08-31 Weld Gwen E (VP HR and Organizational Dev) Sale 10,000 19.19 191,880
2010-08-27 Patel Sujal M (President & CEO) Sale 12,000 19.69 236,280
2010-08-26 Patel Sujal M (President & CEO) Sale 12,000 19.18 230,196
2010-08-24 Godwin Mary E. (VP Operations) Sale 4,680 19.68 92,102
2010-08-24 Godwin Mary E. (VP Operations) Option Ex 4,680 3.74 17,479
2010-08-24 Atlas Venture Entrepreneurs Fund V Lp (10% Owner) Sale 196,800 20.07 3,949,776
2010-08-24 Fidelman Barry J (Director) Sale 196,800 20.07 3,949,776
2010-08-23 Bennett George H (SVP WW Field Operations) Sale 10,000 19.37 193,700
2010-08-23 Bennett George H (SVP WW Field Operations) Option Ex 10,000 2.56 25,600
2010-08-23 Jurgensen Elliott Ren Jr Sale 5,000 18.82 94,100
2010-08-23 Jurgensen Elliott Ren Jr Option Ex 5,000 1.35 6,750
2010-08-23 Helsel Brett (SVP Engineering) Sale 20,000 19.90 398,000
2010-08-23 Helsel Brett (SVP Engineering) Option Ex 20,000 4.76 95,200
2010-08-23 Atlas Venture Entrepreneurs Fund V Lp (10% Owner) Sale 116,200 20.06 2,330,507
2010-08-23 Fidelman Barry J (Director) Sale 116,200 20.06 2,330,507
2010-08-18 Godwin Mary E. (VP Operations) Sale 791 17.50 13,842
2010-08-18 Atlas Venture Associates V Lp (10% Owner) Sale 68,000 17.58 1,195,712
2010-08-18 Fidelman Barry J (Director) Sale 68,000 17.58 1,195,712
2010-08-17 Atlas Venture Associates V Lp (10% Owner) Sale 152,000 17.84 2,711,832
2010-08-17 Fidelman Barry J (Director) Sale 152,000 17.84 2,711,832
2010-08-16 Atlas Venture Associates V Lp (10% Owner) Sale 225,000 17.27 3,886,650
2010-08-16 Fidelman Barry J (Director) Sale 225,000 17.27 3,886,650
2010-08-11 Patel Sujal M (President & CEO) Sale 12,000 17.08 204,900
2010-08-10 Patel Sujal M (President & CEO) Sale 12,000 17.48 209,748
2010-08-06 Listwin Donald J Buy 50,000 17.73 886,500
2010-08-06 Atlas Venture Entrepreneurs Fund V Lp (10% Owner) Sale 9,800 18.12 177,536
2010-08-06 Fidelman Barry J (Director) Sale 9,800 18.12 177,536
2010-08-05 Atlas Venture Entrepreneurs Fund V Lp (10% Owner) Sale 100,490 18.02 1,810,427
2010-08-05 Fidelman Barry J (Director) Sale 100,490 18.02 1,810,427
2010-08-04 Richter William D (CFO & VP Finance) Sale 7,500 17.95 134,625
2010-08-04 Richter William D (CFO & VP Finance) Option Ex 7,500 2.57 19,275
2010-08-04 Atlas Venture Entrepreneurs Fund V Lp (10% Owner) Sale 210,000 17.94 3,768,240
2010-08-04 Fidelman Barry J (Director) Sale 210,000 17.94 3,768,240
2010-08-03 Atlas Venture Associates V Lp (10% Owner) Sale 44,700 17.67 789,670
2010-08-03 Fidelman Barry J (Director) Sale 44,700 17.67 789,670
2010-08-02 Bennett George H (SVP WW Field Operations) Sale 10,000 18.37 183,700
2010-08-02 Bennett George H (SVP WW Field Operations) Option Ex 10,000 2.56 25,600
2010-08-02 Helsel Brett (SVP Engineering) Sale 50,000 18.06 903,100
2010-08-02 Helsel Brett (SVP Engineering) Option Ex 50,000 3.66 183,250
2010-08-02 Atlas Venture Associates V Lp (10% Owner) Sale 300,000 18.12 5,436,600
2010-08-02 Fidelman Barry J (Director) Sale 300,000 18.12 5,436,600
2010-07-30 Mcilwain Matthew S Sale 12,500 17.31 216,400
2010-07-30 Atlas Venture Associates V Lp (10% Owner) Sale 100,000 17.47 1,747,200
2010-07-30 Fidelman Barry J (Director) Sale 100,000 17.47 1,747,200
2010-07-28 Patel Sujal M (President & CEO) Sale 12,000 17.05 204,600
2010-07-27 Patel Sujal M (President & CEO) Sale 12,000 17.42 209,052
2010-07-27 Fidelman Barry J (Director) Sale 29,810 17.62 525,341
2010-07-26 Bennett George H (SVP WW Field Operations) Sale 10,000 17.52 175,240
2010-07-26 Bennett George H (SVP WW Field Operations) Option Ex 10,000 2.56 25,600
2010-07-26 Fidelman Barry J (Director) Sale 260,000 17.37 4,516,460
2010-07-16 Patel Sujal M (President & CEO) Sale 12,000 13.84 166,020
2010-07-15 Patel Sujal M (President & CEO) Sale 12,000 14.27 171,228
2010-06-21 Helsel Brett (SVP Engineering) Sale 25,000 14.90 372,500
2010-06-21 Helsel Brett (SVP Engineering) Option Ex 25,000 4.76 119,000
2010-06-16 Patel Sujal M (President & CEO) Sale 12,000 12.79 153,456
2010-06-15 Patel Sujal M (President & CEO) Sale 12,000 12.52 150,180
2010-06-04 Patel Sujal M (President & CEO) Sale 24,000 13.64 327,432
2010-06-03 Patel Sujal M (President & CEO) Sale 24,000 14.29 342,864
2010-05-18 Godwin Mary E. (VP Operations) Sale 5,000 14.29 71,465
2010-05-18 Godwin Mary E. (VP Operations) Option Ex 5,000 2.57 12,850
2010-05-18 Patel Sujal M (President & CEO) Sale 12,000 14.09 169,104
2010-05-17 Patel Sujal M (President & CEO) Sale 12,000 14.17 170,088
2010-05-17 Helsel Brett (SVP Engineering) Sale 25,000 14.21 355,325
2010-05-17 Helsel Brett (SVP Engineering) Option Ex 25,000 2.57 64,249
2010-05-13 Atlas Venture Entrepreneurs Fund V Lp (10% Owner) Sale 140,000 14.72 2,060,380
2010-05-13 Van Oppen Peter H Sale 68,238 14.77 1,007,602
2010-05-13 Fidelman Barry J (Director) Sale 140,000 14.72 2,060,380
2010-05-12 Richter William D (CFO & VP Finance) Sale 30,000 14.28 428,430
2010-05-12 Richter William D (CFO & VP Finance) Option Ex 30,000 2.57 77,100
2010-05-12 Atlas Venture Entrepreneurs Fund V Lp (10% Owner) Sale 100,000 14.33 1,433,200
2010-05-12 Fidelman Barry J (Director) Sale 100,000 14.33 1,433,200
2010-05-11 Atlas Venture Entrepreneurs Fund V Lp (10% Owner) Sale 31,700 13.89 440,281
2010-05-11 Fidelman Barry J (Director) Sale 31,700 13.89 440,281
2010-05-05 Patel Sujal M (President & CEO) Sale 12,000 14.36 172,380
2010-05-05 Atlas Venture Associates V Lp (10% Owner) Sale 50,000 14.50 725,050
2010-05-05 Fidelman Barry J (Director) Sale 50,000 14.50 725,050
2010-05-04 Bennett George H (SVP WW Field Operations) Sale 9,300 14.02 130,432
2010-05-04 Bennett George H (SVP WW Field Operations) Option Ex 9,300 2.56 23,808
2010-05-04 Madrona Investment Partners, Llc (10% Owner) Sale 50,000 13.88 694,050
2010-05-04 Mcilwain Matthew S (Director) Sale 50,000 13.88 694,050
2010-05-04 Patel Sujal M (President & CEO) Sale 12,000 13.85 166,176
2010-05-04 Atlas Venture Associates V Lp (10% Owner) Sale 100,000 14.01 1,400,800
2010-05-04 Fidelman Barry J (Director) Sale 100,000 14.01 1,400,800
2010-05-03 Madrona Investment Partners, Llc (10% Owner) Sale 50,000 13.57 678,500
2010-05-03 Mcilwain Matthew S (Director) Sale 50,000 13.57 678,500
2010-04-29 Weld Gwen E (VP HR and Organizational Dev) Sale 7,000 13.28 92,953
2010-04-26 Bennett George H (SVP WW Field Operations) Sale 5,700 13.79 78,591
2010-04-26 Bennett George H (SVP WW Field Operations) Option Ex 5,700 2.56 14,592
2010-04-26 Godwin Mary E. (VP Operations) Sale 40,000 13.79 551,560
2010-04-26 Godwin Mary E. (VP Operations) Option Ex 40,000 4.90 196,000
2010-04-26 Madrona Investment Partners, Llc (10% Owner) Sale 100,000 13.85 1,385,400
2010-04-26 Mcilwain Matthew S (Director) Sale 100,000 13.85 1,385,400
2010-04-23 Patel Sujal M (President & CEO) Sale 12,000 13.69 164,232
2010-04-22 Patel Sujal M (President & CEO) Sale 12,000 11.87 142,416
2010-04-09 Patel Sujal M (President & CEO) Sale 12,000 9.63 115,560
2010-04-08 Patel Sujal M (President & CEO) Sale 12,000 9.75 116,952
2010-03-24 Patel Sujal M (President & CEO) Sale 12,000 8.48 101,760
2010-03-23 Patel Sujal M (President & CEO) Sale 12,000 8.54 102,528
2010-03-10 Weld Gwen E (VP HR and Organizational Dev) Sale 6,000 8.85 53,118
2010-03-09 Patel Sujal M (President & CEO) Sale 12,000 8.64 103,667
2010-03-08 Patel Sujal M (President & CEO) Sale 12,000 8.67 104,028
2010-02-25 Patel Sujal M (President & CEO) Sale 12,000 7.16 85,920
2010-02-24 Patel Sujal M (President & CEO) Sale 12,000 7.12 85,392
2010-02-16 Weld Gwen E (VP HR and Organizational Dev) Sale 12,500 7.58 94,700
2010-02-12 Patel Sujal M (President & CEO) Sale 12,000 7.67 92,040
2010-02-11 Patel Sujal M (President & CEO) Sale 12,000 7.48 89,784
2010-01-27 Patel Sujal M (President & CEO) Sale 12,000 6.84 82,128
2010-01-26 Patel Sujal M (President & CEO) Sale 12,000 6.91 82,884
2010-01-15 Patel Sujal M (President & CEO) Sale 12,000 6.94 83,232
2010-01-14 Patel Sujal M (President & CEO) Sale 12,000 7.07 84,816
2009-12-29 Patel Sujal M (President & CEO) Sale 12,000 6.76 81,120
2009-12-28 Patel Sujal M (President & CEO) Sale 12,000 6.84 82,104
2009-12-16 Patel Sujal M (President & CEO) Sale 12,000 6.68 80,220
2009-12-15 Patel Sujal M (President & CEO) Sale 12,000 6.50 77,976
2009-11-19 Patel Sujal M (President & CEO) Sale 12,000 5.53 66,324
2009-11-05 Patel Sujal M (President & CEO) Sale 12,000 5.65 67,764
2009-10-21 Patel Sujal M (President & CEO) Sale 12,000 6.88 82,572
2009-10-20 Patel Sujal M (President & CEO) Sale 12,000 6.84 82,020
2009-10-08 Patel Sujal M (President & CEO) Sale 12,000 6.74 80,928
2009-10-07 Patel Sujal M (President & CEO) Sale 12,000 6.74 80,904
2009-09-25 Patel Sujal M (President & CEO) Sale 12,000 6.04 72,540
2009-09-24 Patel Sujal M (President & CEO) Sale 12,000 6.03 72,360
2009-09-10 Patel Sujal M (President & CEO) Sale 12,000 5.70 68,340
2009-09-09 Patel Sujal M (President & CEO) Sale 12,000 5.73 68,736
2009-08-25 Patel Sujal M (President & CEO) Sale 12,000 5.01 60,120
2009-08-11 Patel Sujal M (President & CEO) Sale 7,000 5.01 35,042
2009-08-10 Patel Sujal M (President & CEO) Sale 12,000 5.11 61,284
2009-07-31 Patel Sujal M (President & CEO) Sale 12,000 5.02 60,179
2009-05-15 Van Oppen Peter H Buy 6,258 2.57 16,083
2009-05-14 Van Oppen Peter H Buy 4,069 2.50 10,172
2009-05-01 Van Oppen Peter H Buy 7,184 2.50 17,960
2009-04-30 Van Oppen Peter H Buy 15,727 2.55 40,103
2009-04-28 Van Oppen Peter H Buy 50,000 2.55 127,650
2009-02-27 Madrona Investment Partners, Llc (10% Owner) Buy 49,041 2.30 112,990
2009-02-27 Mcilwain Matthew S Buy 49,041 2.30 112,990
2009-02-26 Madrona Investment Partners, Llc (10% Owner) Buy 50,994 2.25 114,838
2009-02-26 Mcilwain Matthew S Buy 50,994 2.25 114,838
2009-02-25 Madrona Investment Partners, Llc (10% Owner) Buy 75,024 2.10 157,175
2009-02-25 Mcilwain Matthew S Buy 75,024 2.10 157,175
2009-02-24 Madrona Investment Partners, Llc (10% Owner) Buy 30,000 2.09 62,610
2009-02-24 Mcilwain Matthew S Buy 30,000 2.09 62,610
2009-02-19 Mcilwain Matthew S Buy 11,150 2.27 25,299
2008-11-14 Atlas Venture Associates V Lp (10% Owner) Buy 12,145 3.43 41,620
2008-11-14 Fidelman Barry J (Director) Buy 12,145 3.43 41,620
2008-11-13 Atlas Venture Associates V Lp (10% Owner) Buy 57,131 3.36 191,674
2008-11-13 Fidelman Barry J (Director) Buy 57,131 3.36 191,674
2008-11-12 Atlas Venture Associates V Lp (10% Owner) Buy 65,486 3.35 219,116
2008-11-12 Fidelman Barry J (Director) Buy 65,486 3.35 219,116
2008-11-11 Atlas Venture Associates V Lp (10% Owner) Buy 33,748 3.43 115,755
2008-11-11 Fidelman Barry J (Director) Buy 33,748 3.43 115,755
2008-11-10 Atlas Venture Associates V Lp (10% Owner) Buy 36,666 3.46 126,901
2008-11-10 Fidelman Barry J (Director) Buy 36,666 3.46 126,901
2008-11-07 Fidelman Barry J (Director) Buy 4,600 3.47 15,943
2008-11-06 Fidelman Barry J (Director) Buy 20,843 3.43 71,554
2008-11-05 Atlas Venture Associates V Lp (10% Owner) Buy 38,722 3.38 130,880
2008-11-05 Fidelman Barry J (Director) Buy 38,722 3.38 130,880
2008-11-04 Atlas Venture Associates V Lp (10% Owner) Buy 4,085 3.46 14,142
2008-11-04 Fidelman Barry J (Director) Buy 4,085 3.46 14,142
2008-08-13 Conder Keenan Michael (VP General Counsel & Secty) Buy 10,000 5.00 50,000
2008-08-08 Fitz Steven D (SVP WW Sales & Srvs) Buy 20,000 4.90 98,100
2008-08-07 Fitz Steven D (SVP WW Sales & Srvs) Buy 20,000 4.99 99,800
2008-08-06 Fitz Steven D (SVP WW Sales & Srvs) Buy 20,000 4.91 98,180
2008-08-05 Mcilwain Matthew S Buy 16,000 4.95 79,200
2008-05-16 Fitz Steven D (SVP WW Sales & Srvs) Buy 10,000 4.86 48,590
2008-04-28 Jurgensen Elliott Ren Jr Buy 20,000 2.56 51,160
2007-10-01 Pettigrew Thomas P (VP Global Sales) Sale 3,500 7.76 27,160
2007-10-01 Pettigrew Thomas P (VP Global Sales) Option Ex 3,500 .82 2,870
2007-09-26 Patel Sujal M (Chief Technology Officer) Sale 12,500 8.18 102,225
2007-09-25 Patel Sujal M (Chief Technology Officer) Sale 12,500 8.28 103,462
2007-09-20 Fuhlendorf Stuart W (CFO and VP Finance) Option Ex 33,764 .37 12,492
2007-09-11 Patel Sujal M (Chief Technology Officer) Sale 12,500 9.73 121,662
2007-09-10 Patel Sujal M (Chief Technology Officer) Sale 12,500 9.66 120,800
2007-09-04 Pettigrew Thomas P (VP Global Sales) Sale 3,500 10.02 35,070
2007-09-04 Pettigrew Thomas P (VP Global Sales) Option Ex 3,500 .82 2,870
2007-08-28 Patel Sujal M (Chief Technology Officer) Sale 12,500 9.79 122,425
2007-08-27 Patel Sujal M (Chief Technology Officer) Sale 12,500 9.89 123,675
2007-08-17 Patel Sujal M (Chief Technology Officer) Sale 12,500 9.11 113,912
2007-08-16 Patel Sujal M (Chief Technology Officer) Sale 12,500 8.78 109,762
2007-08-15 Pettigrew Thomas P (VP Global Sales) Sale 3,500 9.26 32,392
2007-08-15 Pettigrew Thomas P (VP Global Sales) Option Ex 3,500 .82 2,870
2007-08-07 Fuhlendorf Stuart W (CFO and VP Finance) Option Ex 94,701 .22 20,834
2007-04-26 Schrandt Mark L (VP Engineering) Option Ex 163,451 .52 84,994

Insider trading activities including stock purchases, stock sales, and option exercises of ISLN listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Isilon Systems, Inc. (symbol ISLN, CIK number 1373671) see the Securities and Exchange Commission (SEC) website.