Insider Stock Trading History of Ridgeback Capital Management Llc


The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Ridgeback Capital Management Llc since year 2005. The trader's CIK number is 1357610. At the time of this reporting, Ridgeback Capital Management Llc is the 10% Owner of Ironwood Pharmaceuticals Inc . (stock ticker symbol IRWD). See this page for all insider trading activities at Ironwood Pharmaceuticals Inc .

Note that in the past Ridgeback Capital Management LLC also reported insider trading activities as an insider of the following companies:
Stock purchases, sales, and option exercises reported by insider Ridgeback Capital Management Llc since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2012-02-06 IRWD Ironwood Pharmaceuticals Inc Sale 47,229 14.80 698,989
2012-02-02 IRWD Ironwood Pharmaceuticals Inc Sale 3,300 15.03 49,599
2012-02-03 IRWD Ironwood Pharmaceuticals Inc Sale 61,949 14.92 924,279
2011-06-23 IRWD Ironwood Pharmaceuticals Inc Sale 500,000 16.19 8,095,000
2009-04-30 SQNM Sequenom Inc Sale 2,726,478 3.51 9,564,484
2009-04-29 SQNM Sequenom Inc Sale 2,353,984 6.71 15,795,232
2008-09-10 SQNM Sequenom Inc Buy 325,000 19.52 6,342,375
2008-08-08 SQNM Sequenom Inc Buy 210,000 18.99 3,987,899
2008-08-07 SQNM Sequenom Inc Buy 245,000 19.87 4,867,170
2008-08-06 SQNM Sequenom Inc Buy 136,599 19.98 2,729,248
2008-08-06 SQNM Sequenom Inc Buy 136,599 19.98 2,729,248
2008-08-05 SQNM Sequenom Inc Buy 100,000 20.49 2,048,999
2008-08-04 SQNM Sequenom Inc Buy 250,000 20.92 5,230,000
2008-07-31 SQNM Sequenom Inc Buy 100,000 20.94 2,093,499
2008-07-29 SQNM Sequenom Inc Buy 313,863 21.55 6,763,747
2008-07-17 SQNM Sequenom Inc Buy 387,485 20.34 7,882,607
2008-07-16 SQNM Sequenom Inc Buy 450,000 21.77 9,796,500
2008-07-15 SQNM Sequenom Inc Buy 562,515 20.98 11,801,564
2008-07-01 SQNM Sequenom Inc Buy 380,000 15.94 6,058,340
2008-06-30 SQNM Sequenom Inc Buy 395,000 15.96 6,304,200
2008-06-27 SQNM Sequenom Inc Buy 350,000 15.24 5,334,700
2008-06-26 SQNM Sequenom Inc Buy 480,000 15.24 7,316,640

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 Ridgeback Capital Management Llc (10% Owner of Ironwood Pharmaceuticals Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.