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Wednesday, December 9, 2009, 2:20PM ET - U.S. Markets close in 1 hour and 40 minutes. Dow Up 0.04% Nasdaq Down 0.15%
Nxstage Medical, Inc. (NXTM)At 2:05PM ET: 7.34  Up 0.02 (0.27%)  
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Insider TransactionsGet Insider Transactions for:
NET SHARE PURCHASE ACTIVITY
Insider Purchases - Last 6 Months
 SharesTrans
PurchasesN/A0
Sales371,6086
Net Shares Purchased
(Sold)
(371,608)6
Total Insider Shares Held11.30M N/A
% Net Shares Purchased
(Sold)
(3.2%) N/A
Net Institutional Purchases - Prior Qtr to Latest Qtr
 Shares
Net Shares Purchased (Sold)(3,118,440)
% Change in Institutional Shares Held(11.2%)
Data provided by Thomson Financial

INSIDER TRANSACTIONS REPORTED - LAST TWO YEARS
DateInsiderSharesTypeTransactionValue*
7-Dec-09FLYNN JAMES E
Beneficial Owner (10% or more)
29,163IndirectSale at $7.37 per share.$214,931
4-Dec-09FLYNN JAMES E
Beneficial Owner (10% or more)
20,665IndirectSale at $7.37 per share.$152,301
3-Dec-09FLYNN JAMES E
Beneficial Owner (10% or more)
156,400IndirectSale at $7.44 per share.$1,163,616
9-Oct-09FLYNN JAMES E
Beneficial Owner (10% or more)
11,602IndirectSale at $6.72 - $6.75 per share.$78,0002
30-Sep-09GIANNINI DANIEL A
Director
1,606DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Sep-09CHAMBON PHILIPPE
Director
1,532DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Sep-09MOORE CRAIG W
Director
1,756DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Sep-09REID PERPER
Director
1,457DirectAcquisition (Non Open Market) at $0 per share.N/A
29-Sep-09FLYNN JAMES E
Beneficial Owner (10% or more)
3,669IndirectSale at $7.07 per share.$25,939
23-Sep-09FLYNN JAMES E
Beneficial Owner (10% or more)
33,168IndirectSale at $6.72 - $6.76 per share.$224,0002
21-Sep-09FLYNN JAMES E
Beneficial Owner (10% or more)
993IndirectSale at $6.72 per share.$6,672
18-Sep-09FLYNN JAMES E
Beneficial Owner (10% or more)
37,591IndirectSale at $6.73 per share.$252,987
17-Sep-09FLYNN JAMES E
Beneficial Owner (10% or more)
30,869IndirectSale at $6.74 per share.$208,057
16-Sep-09FLYNN JAMES E
Beneficial Owner (10% or more)
28,625IndirectSale at $6.72 per share.$192,360
15-Sep-09FLYNN JAMES E
Beneficial Owner (10% or more)
30,805IndirectSale at $6.72 per share.$207,009
14-Sep-09FLYNN JAMES E
Beneficial Owner (10% or more)
64,060IndirectSale at $6.71 - $6.77 per share.$432,0002
11-Sep-09FLYNN JAMES E
Beneficial Owner (10% or more)
103,148IndirectSale at $6.97 - $6.98 per share.$719,0002
30-Jun-09GIANNINI DANIEL A
Director
2,584DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Jun-09CHAMBON PHILIPPE
Director
2,161DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Jun-09MOORE CRAIG W
Director
2,584DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Jun-09REID PERPER
Director
2,245DirectAcquisition (Non Open Market) at $0 per share.N/A
12-Jun-09FLYNN JAMES E
Beneficial Owner (10% or more)
27,078IndirectSale at $5.96 per share.$161,384
31-Mar-09GIANNINI DANIEL A
Director
5,717DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Mar-09CHAMBON PHILIPPE
Director
6,298DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Mar-09MOORE CRAIG W
Director
6,298DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Mar-09REID PERPER
Director
4,941DirectAcquisition (Non Open Market) at $0 per share.N/A
24-Mar-09FLYNN JAMES E
Beneficial Owner (10% or more)
1,789,317IndirectStatement of OwnershipN/A
31-Dec-08CHAMBON PHILIPPE
Director
93DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Dec-08REID PERPER
Director
1,591DirectAcquisition (Non Open Market) at $0 per share.N/A
16-Dec-08BURBANK JEFFREY H
Officer
14,146DirectOption Exercise at $0.34 per share.$4,809
27-Oct-08LEWIS EARL R
Director
N/ADirectStatement of OwnershipN/A
30-Sep-08GIANNINI DANIEL A
Director
2,843DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Sep-08CHAMBON PHILIPPE
Director
3,376DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Sep-08MOORE CRAIG W
Director
2,132DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Sep-08REID PERPER
Director
3,021DirectAcquisition (Non Open Market) at $0 per share.N/A
26-Aug-08ORBIMED ADVISORS LLC
Director
27,700IndirectPurchase at $3.50 per share.$96,950
25-Aug-08ORBIMED ADVISORS LLC
Director
108,900IndirectPurchase at $3.37 per share.$366,993
21-Aug-08PHILDIUS PETER P
Director
13,570DirectSale at $3.28 per share.$44,509
21-Aug-08ORBIMED ADVISORS LLC
Director
26,100IndirectPurchase at $3.25 per share.$84,825
13-Aug-08PHILDIUS PETER P
Director
6,500DirectSale at $4.03 per share.$26,195
12-Aug-08MOORE CRAIG W
Director
10,000DirectPurchase at $4 per share.$40,000
11-Aug-08PHILDIUS PETER P
Director
32,170DirectOption Exercise at $0.37 per share.$11,902
11-Aug-08PHILDIUS PETER P
Director
12,100DirectSale at $4.21 per share.$50,941
1-Aug-08CREDIT SUISSE AG/
Beneficial Owner (10% or more)
1,022,222IndirectPurchase at $4.50 per share.$4,599,999
23-Jul-08SILVERSTEIN JONATHAN
Director
5,555,556IndirectStatement of OwnershipN/A
30-Jun-08UTTERBERG DAVID S
Director
2,343DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Jun-08GIANNINI DANIEL A
Director
5,533DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Jun-08CHAMBON PHILIPPE
Director
5,013DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Jun-08MOORE CRAIG W
Director
5,794DirectAcquisition (Non Open Market) at $0 per share.N/A
30-Jun-08REID PERPER
Director
4,752DirectAcquisition (Non Open Market) at $0 per share.N/A
23-May-08ORBIMED ADVISORS LLC
Director
5,555,556IndirectPurchase at $4.50 per share.$25,000,002
23-May-08ORBIMED ADVISORS LLC
Beneficial Owner (10% or more)
5,555,556IndirectStatement of OwnershipN/A
31-Mar-08UTTERBERG DAVID S
Director
2,604DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Mar-08GIANNINI DANIEL A
Director
3,877DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Mar-08SHEA THOMAS
Officer
N/ADirectStatement of OwnershipN/A
31-Mar-08CHAMBON PHILIPPE
Director
3,761DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Mar-08MOORE CRAIG W
Director
4,340DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Mar-08REID PERPER
Director
3,414DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Dec-07UTTERBERG DAVID S
Director
543DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Dec-07GIANNINI DANIEL A
Director
247DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Dec-07CHAMBON PHILIPPE
Director
873DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Dec-07MOORE CRAIG W
Director
313DirectAcquisition (Non Open Market) at $0 per share.N/A
31-Dec-07REID PERPER
Director
774DirectAcquisition (Non Open Market) at $0 per share.N/A
Data provided by EDGAR Online
* = Where indicated, some values are estimates.
1 = Potential proceeds estimated by the filer.
2 = Estimated based on the average of multiple prices reported.
3 = Multiple dates reported. Most recent date shown.
All Major Holders - Insider Roster

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