LIFE SCIENCES
Life Sciences 25
Covidien launched a venture investment fund; an analyst said Alnylam's stock was overvalued.
| LAST | MARKET CAP | LAST | PCT. | |||
| NO. | WEEK | COMPANY | TICKER | (MILLIONS) | PRICE | CHANGE |
| 1 | 1 | Covidien Ltd. | COV | $27,263 | $54.33 | 0.8% |
| 2 | 2 | Thermo Fisher Scientific | TMO | $25,677 | $61.28 | -2.3% |
| 3 | 3 | Genzyme Corp. | GENZ | $21,522 | $80.11 | -3.6% |
| 4 | 4 | Boston Scientific Corp. | BSX | $19,148 | $12.76 | -3.5% |
| 5 | 5 | Biogen Idec | BIIB | $15,204 | $52.38 | -4.2% |
| 6 | 6 | Waters Corp. | WAT | $6,821 | $68.91 | -1.8% |
| 7 | 7 | Hologic | HOLX | $5,297 | $20.67 | 2.8% |
| 8 | 8 | Charles River Laboratories | CRL | $4,588 | $67.63 | -1.6% |
| 9 | 9 | Millipore Corp. | MIL | $4,174 | $75.63 | -0.6% |
| 10 | 10 | Vertex Pharmaceuticals | VRTX | $3,833 | $27.08 | -4.8% |
| 11 | 11 | PerkinElmer | PKI | $3,499 | $29.28 | -1.4% |
| 12 | 12 | Inverness Medical | IMA | $2,744 | $35.19 | -0.9% |
| 13 | 13 | Bruker Corp. | BRKR | $2,422 | $14.80 | -3.0% |
| 14 | 14 | Sepracor | SEPR | $2,042 | $18.76 | -1.1% |
| 15 | 15 | Parexel International Corp. | PRXL | $1,840 | $32.51 | -0.6% |
| 16 | 16 | Haemonetics Corp. | HAE | $1,598 | $62.92 | 2.3% |
| 17 | 17 | Alkermes | ALKS | $1,422 | $14.98 | -8.5% |
| 18 | 19 | Cubist Pharmaceuticals | CBST | $1,304 | $23.04 | -2.1% |
| 19 | 18 | Alnylam Pharmaceuticals | ALNY | $1,231 | $29.88 | -14.0% |
| 20 | 20 | Phase Forward | PFWD | $847 | $19.79 | -6.9% |
| 21 | 21 | AMAG Pharmaceuticals | AMAG | $731 | $42.97 | -11.3% |
| 22 | 22 | Zoll Medical Corp. | ZOLL | $682 | $32.44 | -6.9% |
| 23 | 23 | Abiomed | ABMD | $666 | $18.20 | -4.4% |
| 24 | 24 | Momenta Pharmaceuticals | MNTA | $551 | $14.95 | -3.7% |
| 25 | 25 | Idenix Pharmaceuticals | IDIX | $462 | $8.19 | -1.9% |
The Boston Globe/Bloomberg Massachusetts Technology and Life Sciences indexes are price-weighted indexes of all technology and life sciences stocks in the state. Listed above are the top companies, ranked by market value, in each sector. Asterisks indicate a stock that has moved five places or more in the last week. For up-to-the-minute rankings and stock prices, visit boston.com/business. 