Alnylam Pharmaceuticals Inc
(NASDAQ: ALNY)
+0.23
+0.85%
| Shares Outstanding | 62.00 Mil |
| Institutional Ownership (%) | 76.29 |
| Top 10 Institutions (%) | 41.70 |
| Mutual Fund Ownership (%) | 0.77 |
| 5%/Insider Ownership (%) | 14.05 |
| Float (%) | 85.95 |
| DESCRIPTION | # OF HOLDERS | SHARES |
|---|---|---|
| Total Positions | 150 | 47,301,774 |
| New Positions | 36 | 0 |
| Soldout Positions | 53 | 0 |
| Net Position Change | 24 | 8,106,932 |
| Buyers | 105 | 13,490,697 |
| Sellers | 81 | -5,383,765 |
| INSTITUTION NAME | SHS HELD | SHS CHG | %CHG | $CHG* | %OUT | %PORT | RPT DATE |
|---|---|---|---|---|---|---|---|
| Fidelity Management & Research Company | 9,206,710 | 1,411,763 | 18.1 | 82,109,740 | 14.8 | 0 | 03-31-13 |
| BlackRock Institutional Trust Company, N.A. | 3,362,184 | 752,735 | 28.8 | 34,313,980 | 5.4 | 0 | 03-31-13 |
| The Vanguard Group, Inc. | 2,856,705 | 342,330 | 13.6 | 23,730,557 | 4.6 | 0 | 03-31-13 |
| T. Rowe Price Associates, Inc. | 1,706,300 | 726,600 | 74.2 | 23,703,006 | 2.7 | 0 | 03-31-13 |
| Capital World Investors | 1,700,000 | 0 | 0 | 10,404,000 | 2.7 | 0 | 03-31-13 |
| State Street Global Advisors (US) | 1,658,560 | 474,760 | 40.1 | 18,814,757 | 2.7 | 0 | 03-31-13 |
| HealthCor Management, L.P. | 1,450,000 | -375,000 | -20.5 | 2,030,250 | 2.3 | 1.7 | 03-31-13 |
| Bridger Management, LLC | 1,366,648 | -606,507 | -30.7 | -2,704,867 | 2.2 | 2.3 | 03-31-13 |
| UBS Global Asset Management (Americas), Inc. | 1,313,713 | 318,533 | 32 | 13,853,151 | 2.1 | 0.1 | 03-31-13 |
| Deerfield Management Company, L.P. | 1,221,400 | 1,221,400 | 100 | 29,765,518 | 2 | 2.6 | 03-31-13 |
| BlackRock Financial Management, Inc. | 1,130,777 | 637,250 | 129.1 | 18,550,167 | 1.8 | 0 | 03-31-13 |
| Columbia Wanger Asset Management, LLC | 1,098,000 | 1,098,000 | 100 | 26,758,260 | 1.8 | 0.1 | 03-31-13 |
| Gilder Gagnon Howe & Co. LLC | 1,094,220 | 1,094,220 | 100 | 26,666,141 | 1.8 | 0.6 | 03-31-13 |
| UBS Global Asset Management (Switzerland) | 1,002,800 | 90,100 | 9.9 | 7,781,461 | 1.6 | 0.1 | 03-31-13 |
| Camber Capital Management LLC | 1,000,000 | 0 | 0 | 6,120,000 | 1.6 | 3 | 03-31-13 |
- *Category Headings:
- Shs Held - shares held at report date
- Shs Chg - position change within reporting period
- %Chg - % change
- $Chg - market value of the position change
- %Out - % of shares outstanding
- %Port - % Portfolio
- Rpt Date - report date
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