FORTALEZA ASSET MANAGEMENT INC/ - ACHILLION PHARMACEUTICALS IN ownership

ACHILLION PHARMACEUTICALS IN's ticker is ACHN and the CUSIP is 00448Q201. A total of 106 filers reported holding ACHILLION PHARMACEUTICALS IN in Q3 2013. The put-call ratio across all filers is 0.15 and the average weighting 0.1%.

Quarter-by-quarter ownership
FORTALEZA ASSET MANAGEMENT INC/ ownership history of ACHILLION PHARMACEUTICALS IN
ValueSharesWeighting
Q1 2015$66,000
-67.8%
6,717
-59.8%
0.04%
-60.6%
Q4 2014$205,000
-64.8%
16,715
-76.5%
0.09%
-72.0%
Q2 2013$582,00071,2000.34%
Other shareholders
ACHILLION PHARMACEUTICALS IN shareholders Q3 2013
NameSharesValueWeighting ↓
RA Capital Management 11,733,815$81,081,00011.64%
RTW INVESTMENTS, LP 2,589,818$17,896,0005.56%
DAFNA Capital Management LLC 480,300$3,319,0003.29%
DOHENY ASSET MANAGEMENT /CA 510,125$3,525,0001.83%
Sio Capital Management, LLC 364,368$2,518,0001.73%
TURNER INVESTMENTS LLC 1,086,000$7,504,0001.52%
Ghost Tree Capital, LLC 300,000$2,073,0000.93%
Rock Springs Capital Management LP 1,125,000$7,774,0000.63%
SENZAR ASSET MANAGEMENT, LLC 619,000$4,277,290,0000.62%
Point72 Asset Management, L.P. 9,772,018$67,525,0000.53%
View complete list of ACHILLION PHARMACEUTICALS IN shareholders