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o | Rule 13d-1(b) | ||
o | Rule 13d-1(c) | ||
þ | Rule 13d-1(d) |
Item 1(a).
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Name of Issuer: NxStage Medical, Inc. |
Item 1(b).
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Address of Issuers Principal Executive Offices: | |
439 S. Union Street, 5th Floor, Lawrence, MA 01843 |
Item 2(a).
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Name of Person Filing: | |
Atlas Venture Fund III, L.P. (Atlas III), Atlas Venture Entrepreneurs Fund III, L.P. (AVE III and together with Atlas III, the Atlas III Funds), Atlas Venture Fund V, L.P. (Atlas V), Atlas Venture Entrepreneurs Fund V, L.P. (AVE V and together with Atlas V, the Atlas V Funds), Atlas Venture Associates III, L.P. (AVA III LP), Atlas Venture Associates V, L.P. (AVA V LP), Atlas Venture Associates III, Inc. (AVA III Inc.), Atlas Venture Associates V, Inc. (AVA V Inc.), Axel Bichara (Bichara), Jean-Francois Formela (Formela) and Christopher Spray (Spray). Atlas III, AVE III, Atlas V and AVE V are referred to individually herein as a Fund and collectively as the Funds. The persons and entities named in this Item 2(a) are referred to individually herein as a Filing Person and collectively as the Filing Persons. | ||
AVA III Inc. is the sole general partner of AVA III LP. AVA III LP is the sole general partner of the Atlas III Funds. Messrs. Bichara, Formela and Spray are directors of AVA III Inc. | ||
AVA V Inc. is the sole general partner of AVA V LP. AVA V LP is the sole general partner of the Atlas V Funds. Messrs. Bichara, Formela and Spray are directors of AVA V Inc. |
Item 2(b).
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Address of Principal Business Office or, if None, Residence: | |
The principal business office of each of the Filing Persons is: | ||
890 Winter Street, Suite 320 Waltham, MA 02451 |
Item 2(c).
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Citizenship: Atlas III, AVE III, Atlas V, AVE V, AVA III LP and AVA V LP is each a limited partnership formed under the laws of the State of Delaware. AVA III Inc. and AVA V Inc. is each a corporation formed under the laws of the State of Delaware. Mr. Bichara is a citizen of Germany. Mr. Formela is a citizen of France. Mr. Spray is a citizen of the United Kingdom. |
Item 2(d).
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Title of Class of Securities: Common Stock, $0.001 par value per share (the Common Stock). |
Item 2(e).
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CUSIP Number: 67072V103 |
Item 3.
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If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a: | |
Not Applicable. |
Page 2 of 8 pages
Item 4.
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Ownership. | |
Not Applicable. |
Item 5.
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Ownership of Five Percent or Less of a Class. | |
Each Filing Person has ceased to own beneficially more than 5% of the outstanding Common Stock of NxStage Medical, Inc. |
Page 3 of 8 pages
*
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Axel Bichara | ||||
* | ||||
Jean-Francois Formela | ||||
* | ||||
Christopher Spray |
Atlas Venture Fund III, L.P. Atlas Venture Entrepreneurs Fund III, L.P. By: Atlas Venture Associates III, L.P. their general partner By: Atlas Venture Associates III, Inc. its general partner |
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By: | *
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Name: | Kristen Laguerre | |||||
Title: | Vice-President | |||||
Atlas Venture Associates III, L.P. By: Atlas Venture Associates III, Inc. its general partner |
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By: | * | |||||
Name: | Kristen Laguerre | |||||
Title: | Vice-President | |||||
Atlas Venture Associates III, Inc. | ||||||
By: | * | |||||
Name: | Kristen Laguerre | |||||
Title: | Vice-President |
Page 4 of 8 pages
Atlas Venture Fund V, L.P. Atlas Venture Entrepreneurs Fund V, L.P. By: Atlas Venture Associates V, L.P. their general partner By: Atlas Venture Associates V, Inc. its general partner |
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By: | *
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Name: | Kristen Laguerre | |||||
Title: | Vice-President | |||||
Atlas Venture Associates V, L.P. By: Atlas Venture Associates V, Inc. its general partner |
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By: | * | |||||
Name: | Kristen Laguerre | |||||
Title: | Vice-President | |||||
Atlas Venture Associates V, Inc. | ||||||
By: | * | |||||
Name: | Kristen Laguerre | |||||
Title: | Vice-President |
* By:
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/s/ Kristen Laguerre
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By Kristen Laguerre in her | ||||
individual capacity and as | ||||
Attorney-in-Fact |
Page 5 of 8 pages
*
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Axel Bichara | ||||
* | ||||
Jean-Francois Formela | ||||
* | ||||
Christopher Spray |
Atlas Venture Fund III, L.P. Atlas Venture Entrepreneurs Fund III, L.P. By: Atlas Venture Associates III, L.P. their general partner By: Atlas Venture Associates III, Inc. its general partner |
||||||
By: | *
|
|||||
Name: | Kristen Laguerre | |||||
Title: | Vice-President | |||||
Atlas Venture Associates III, L.P. By: Atlas Venture Associates III, Inc. its general partner |
||||||
By: | * | |||||
Name: | Kristen Laguerre | |||||
Title: | Vice-President | |||||
Atlas Venture Associates III, Inc. | ||||||
By: | * | |||||
Name: | Kristen Laguerre | |||||
Title: | Vice-President |
Page 6 of 8 pages
Atlas Venture Fund V, L.P. Atlas Venture Entrepreneurs Fund V, L.P. By: Atlas Venture Associates V, L.P. their general partner By: Atlas Venture Associates V, Inc. its general partner |
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By: | *
|
|||||
Name: | Kristen Laguerre | |||||
Title: | Vice-President | |||||
Atlas Venture Associates V, L.P. By: Atlas Venture Associates V, Inc. its general partner |
||||||
By: | * | |||||
Name: | Kristen Laguerre | |||||
Title: | Vice-President | |||||
Atlas Venture Associates V, Inc. | ||||||
By: | * | |||||
Name: | Kristen Laguerre | |||||
Title: | Vice-President |
* By:
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/s/ Kristen Laguerre
|
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By Kristen Laguerre in her | ||||
individual capacity and as | ||||
Attorney-in-Fact |
Page 7 of 8 pages
/s/ Peter Barrett | ||||
Peter Barrett | ||||
/s/ Axel Bichara | ||||
Axel Bichara | ||||
/s/ Jeffrey Fagnan | ||||
Jeffrey Fagnan | ||||
/s/ Jean-Francois Formela | ||||
Jean-Francois Formela | ||||
/s/ Christopher Spray | ||||
Christopher Spray |
Page 8 of 8 pages