Mark Levin, a partner of Third Rock Ventures
Mark Levin, Third Rock Ventures partner and interim chief executive of Voyager (Courtesy of Third Rock Ventures)

Boston’s top venture capital hauls in February went to companies tackling Parkinson’s disease, cybersecurity, and personal health monitoring.

Here are the 10 largest Boston-area VC deals I came across during the month.

1. Voyager Therapeutics (Cambridge) raised $45 million for a new therapy to treat Parkinson’s disease and ALS. The therapy works by infecting patients with a harmless virus. Boston’s Third Rock Ventures formed the company and supplied the Series A funding round. Voyager’s interim chief executive is Third Rock partner Mark Levin.

2. Bit9 (Waltham) raised $38 million and acquired a Texas-based firm to beef up its cyber breach software. Atlas Venture led the round, and firm partner Jeff Fagnan said Bit9 may be headed for an initial public offering.

3. Quanttus (Cambridge) disclosed a $19 million Series A round and offered the first details about its wearable health tracker, now in development. The device aims to improve a user’s health by continuously monitoring vital signs, such as heart rate and respiration. Khosla Ventures and Matrix Partners invested.

4. Localytics (Boston) raised $16 million and became the first grad of the Techstars Boston startup program to reach the Series C funding level. The money will expand the firm’s mobile app marketing and analytics technology, now used by companies including ESPN and Microsoft. Foundation Capital led the deal.

5. Newlans (Acton) closed a $15 million Series B round to expand its radio-frequency chips for wireless devices, which aim to be lower on cost and power consumption. Intel Capital led the round.

6. NuoDB (Cambridge) raised $14.2 million for its database technology, which is built with the demands of the cloud and big data in mind. The investment was led by Europe’s second largest software firm, Dassault Systèmes of France.

7. Pronutria (Cambridge) announced a $12.3 million funding for its novel protein nutrients, which could be used to treat a range of diseases. Firm founder Flagship Ventures led the round.

8. Unidesk (Marlborough) disclosed a $10.3 million round to expand its software for easier management of virtual desktops. The funding was led by Ignition Partners.

9. DataXu (Boston) — another company mentioned by Atlas Venture as an IPO candidate — raised $10 million for its technology, which uses artificial intelligence and big data to make optimal digital marketing buys for customers. Existing investors (who include Atlas and Flybridge Capital Partners) contributed the funding.

10. Respiratory Motion (Waltham) closed $5.8 million toward a Series B round for its new devices to monitor respiration. Easton Capital led the round.

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