The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) by Slezak Mark since 2008.
The trader's CIK number is 1165644.
At the time of the last reporting, Slezak Mark was the Director of Nanosphere Inc. (stock ticker symbol NSPH).
Also see all insider trading activities at Nanosphere Inc.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2012 | NSPH | 1,924,096 | $4,113,966 | 0 | $0 | 0 | $0 |
| 2011 | NSPH | 3,485,235 | $7,097,639 | 0 | $0 | 0 | $0 |
| 2009 | NSPH | 669,264 | $2,255,354 | 0 | $0 | 0 | $0 |
| 2008 | NSPH | 111,842 | $464,110 | 0 | $0 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2012-07-19 | NSPH | Buy | 1,000,000 | 2.40 | 2,400,000 |
| 2012-06-14 | NSPH | Buy | 79,329 | 1.98 | 157,071 |
| 2012-06-15 | NSPH | Buy | 229,746 | 2.05 | 470,060 |
| 2012-06-12 | NSPH | Buy | 10,000 | 1.98 | 19,750 |
| 2012-06-13 | NSPH | Buy | 40,000 | 1.95 | 78,000 |
| 2012-06-11 | NSPH | Buy | 5,000 | 1.95 | 9,740 |
| 2012-06-08 | NSPH | Buy | 20,000 | 1.96 | 39,120 |
| 2012-06-06 | NSPH | Buy | 15,000 | 1.85 | 27,735 |
| 2012-06-07 | NSPH | Buy | 13,116 | 1.90 | 24,854 |
| 2012-06-05 | NSPH | Buy | 317,500 | 1.75 | 554,672 |
| 2012-06-04 | NSPH | Buy | 25,000 | 1.75 | 43,750 |
| 2012-06-01 | NSPH | Buy | 88,900 | 1.71 | 152,374 |
| 2012-05-31 | NSPH | Buy | 30,000 | 1.69 | 50,820 |
| 2012-05-29 | NSPH | Buy | 10,000 | 1.69 | 16,930 |
| 2012-05-24 | NSPH | Buy | 35,000 | 1.71 | 59,710 |
| 2012-05-25 | NSPH | Buy | 5,505 | 1.70 | 9,380 |
| 2011-10-14 | NSPH | Buy | 285,235 | 1.10 | 314,899 |
| 2011-07-07 | NSPH | Buy | 45,000 | 1.86 | 83,745 |
| 2011-07-08 | NSPH | Buy | 70,000 | 1.86 | 130,270 |
| 2011-06-28 | NSPH | Buy | 100,000 | 1.70 | 169,500 |
| 2011-06-27 | NSPH | Buy | 150,000 | 1.64 | 246,600 |
| 2011-06-24 | NSPH | Buy | 135,000 | 1.57 | 212,625 |
| 2011-05-10 | NSPH | Buy | 2,700,000 | 2.20 | 5,940,000 |
| 2009-05-22 | NSPH | Buy | 504,500 | 3.05 | 1,538,725 |
| 2009-03-16 | NSPH | Buy | 87,658 | 4.98 | 436,536 |
| 2009-03-12 | NSPH | Buy | 1,500 | 3.88 | 5,820 |
| 2009-03-13 | NSPH | Buy | 14,398 | 4.62 | 66,518 |
| 2009-03-11 | NSPH | Buy | 27,164 | 3.80 | 103,223 |
| 2009-03-10 | NSPH | Buy | 8,857 | 3.35 | 29,670 |
| 2009-03-06 | NSPH | Buy | 8,530 | 2.84 | 24,225 |
| 2009-03-09 | NSPH | Buy | 16,657 | 3.04 | 50,637 |
| 2008-12-11 | NSPH | Buy | 38,294 | 4.40 | 168,378 |
| 2008-12-12 | NSPH | Buy | 19,958 | 4.91 | 98,013 |
| 2008-12-10 | NSPH | Buy | 7,040 | 4.08 | 28,737 |
| 2008-12-09 | NSPH | Buy | 3,188 | 4.38 | 13,976 |
| 2008-12-04 | NSPH | Buy | 27,534 | 3.62 | 99,645 |
| 2008-12-05 | NSPH | Buy | 2,368 | 3.50 | 8,292 |
| 2008-12-02 | NSPH | Buy | 13,460 | 3.50 | 47,069 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Slezak Mark (Director of Nanosphere Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.