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Home > Insider Trading > Filing (0001012975-10-000417)

Filing Details

Accession Number:: 0001012975-10-000417
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2010-12-08 18:05:19
Reporting Period:: 2010-12-06

Filing Date:: 2010-12-08
Accepted Time:: 2010-12-08 18:05:19
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1333170	Nxstage Medical Inc.	NXTM	Electromedical & Electrotherapeutic Apparatus (3845)	043454702

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1192212	Philippe Chambon	C/O New Leaf Venture Partners 7 Times Square, Suite 3502 New York NY 10036		Yes	No	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-12-06	4,170	$5.50	4,245,644	No	4	X	Indirect	See footnotes
Common Stock	Disposition	2010-12-07	168,975	$23.20	4,076,669	No	4	S	Indirect	See footnotes

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	X	Indirect	See footnotes
No	4	S	Indirect	See footnotes

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Common Stock Warrants (right to buy)	Disposition	2010-12-06	5,619	$0.00	4,170	$5.50

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2008-08-01	2013-05-28	No	4	X	Indirect

Footnotes

See Footnote 1 in Exhibit 99.1
See Footnote 2 in Exhibit 99.1
See Footnote 3 in Exhibit 99.1
See Footnote 4 in Exhibit 99.1
See Footnote 5 in Exhibit 99.1