Insider Trading activities of Sirna Therapeutics Inc insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Sirna Therapeutics Inc since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Sirna Therapeutics Inc since year 2005. Table 2 shows the detailed insider transactions of Sirna Therapeutics Inc since 2005. The reporting company's ticker symbol is RNAI. The reporting company's CIK number is 892112.
The total value of stock buying since 2005 is $17,650,895.
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 Sirna Therapeutics Inc (RNAI).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2006-05 15,000 $75,900 0 $0 0 $0
2005-07 10,984,373 $17,574,995 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Sirna Therapeutics Inc insiders (RNAI)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2006-05-25 Weaver Gregory L (Senior Vice President and CFO) Buy 15,000 5.06 75,900
2005-07-06 Venrock Management Iii Llc (10% Owner) Buy 1,000,000 1.60 1,600,000
2005-07-06 Vef Management Iii Llc (10% Owner) Buy 24,999 1.60 39,998
2005-07-06 Roberts Bryan E (Director) Buy 1,249,999 1.60 1,999,998
2005-07-06 Niedel James (Director) Buy 3,125,001 1.60 5,000,001
2005-07-06 Greer R Scott (Director) Buy 37,500 1.60 60,000
2005-07-06 Mrna Fund Ii Lp (10% Owner) Buy 1,250,000 1.60 2,000,000
2005-07-06 Venrock Entrepreneurs Fund Iii Lp (10% Owner) Buy 24,999 1.60 39,998
2005-07-06 Venrock Associates Iii Lp (10% Owner) Buy 1,000,000 1.60 1,600,000
2005-07-06 Venrock Associates (10% Owner) Buy 225,000 1.60 360,000
2005-07-06 Credit Suisse First Boston/ (Other) Buy 3,046,875 1.60 4,875,000

Insider trading activities including stock purchases, stock sales, and option exercises of RNAI listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Sirna Therapeutics Inc (symbol RNAI, CIK number 892112) see the Securities and Exchange Commission (SEC) website.