Insider Trading activities of Helicos Biosciences Corp insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Helicos Biosciences Corp since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Helicos Biosciences Corp since year 2005. Table 2 shows the detailed insider transactions of Helicos Biosciences Corp since 2005. The reporting company's ticker symbol is HLCS. The reporting company's CIK number is 1274563.
The total value of stock buying since 2005 is $28,664,768.
The total value of stock sales since 2005 is $0.
The total value of stock option exercises since 2005 is $0.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Helicos Biosciences Corp (HLCS).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2009-09 2,396,727 $1,875,183 0 $0 0 $0
2008-12 82,981,685 $0 0 $0 0 $0
2008-05 1,000 $4,982 0 $0 0 $0
2007-05 2,976,067 $26,784,603 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Helicos Biosciences Corp insiders (HLCS)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2009-09-18 Hef Vi, Limited Partnership (Director) Buy 7,531 .00 0
2009-09-18 St Newcogen Llc Buy 242,931 .00 0
2009-09-18 Warden Charles M (10% Owner) Buy 242,931 2.57 625,061
2009-09-18 Barrett Peter (Director) Buy 242,931 .00 0
2009-09-18 Lowy Ronald A (Chief Executive Officer) Buy 58,304 .00 0
2009-09-18 Milder Donald B (10% Owner) Buy 242,931 2.57 625,061
2009-09-18 Atwood Brian G (Director) Buy 242,931 2.57 625,061
2009-09-18 Highland Management Partners Vi L P (Director) Buy 235,400 .00 0
2009-09-18 Afeyan Noubar Buy 242,931 .00 0
2009-09-18 Atlas Venture Entrepreneurs Fund Vi Lp (Director) Buy 242,931 .00 0
2009-09-18 Highland Capital Partners Vi Lp (Director) Buy 152,044 .00 0
2009-09-18 Higgins Robert F (Director) Buy 242,931 .00 0
2008-12-23 Hef Vi, Limited Partnership Buy 267,241 .00 0
2008-12-23 Flagship Ventures Management, Inc. Buy 8,620,690 .00 0
2008-12-23 St Newcogen Llc Buy 8,620,690 .00 0
2008-12-23 Warden Charles M (10% Owner) Buy 8,620,690 .00 0
2008-12-23 Barrett Peter Buy 8,620,690 .00 0
2008-12-23 Lubash Barbara N (10% Owner) Buy 8,620,690 .00 0
2008-12-23 Atwood Brian G (Director) Buy 8,620,690 .00 0
2008-12-23 Highland Management Partners Vi L P Buy 8,353,449 .00 0
2008-12-23 Atlas Venture Entrepreneurs Fund Vi Lp Buy 8,620,690 .00 0
2008-12-23 Highland Capital Partners Vi Lp Buy 5,395,475 .00 0
2008-12-23 Higgins Robert F Buy 8,620,690 .00 0
2008-05-27 Allison Elisabeth Buy 1,000 4.98 4,982
2007-05-30 Flagship Ventures Management, Inc. Buy 222,222 9.00 1,999,998
2007-05-30 St Newcogen Llc Buy 222,222 9.00 1,999,998
2007-05-30 Warden Charles M (10% Owner) Buy 111,111 9.00 999,999
2007-05-30 Atlas Venture Associates Vi, L.p. Buy 333,333 9.00 2,999,997
2007-05-30 Barrett Peter Buy 333,333 9.00 2,999,997
2007-05-30 Milder Donald B (10% Owner) Buy 111,111 9.00 999,999
2007-05-30 Atwood Brian G (Director) Buy 111,111 9.00 999,999
2007-05-30 Highland Management Partners Vi L P Buy 323,000 9.00 2,907,000
2007-05-30 Wheeler Kurt (10% Owner) Buy 333,333 9.00 2,999,997
2007-05-30 Mpm Asset Management Investors 2003 Bviii Llc (10% Owner) Buy 333,333 9.00 2,999,997
2007-05-30 Highland Capital Partners Vi Lp Buy 208,625 9.00 1,877,625
2007-05-30 Higgins Robert F Buy 333,333 9.00 2,999,997

Insider trading activities including stock purchases, stock sales, and option exercises of HLCS listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Helicos Biosciences Corp (symbol HLCS, CIK number 1274563) see the Securities and Exchange Commission (SEC) website.