Renaissance Technologies - ARCA BIOPHARMA INC ownership

ARCA BIOPHARMA INC's ticker is ABIO and the CUSIP is 00211Y209. A total of 21 filers reported holding ARCA BIOPHARMA INC in Q4 2013. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
Renaissance Technologies ownership history of ARCA BIOPHARMA INC
ValueSharesWeighting
Q4 2013$1,034,000
+589.3%
615,182
+556.1%
0.00%
Q3 2013$150,000
+689.5%
93,770
+533.6%
0.00%
Q2 2013$19,00014,8000.00%
Other shareholders
ARCA BIOPHARMA INC shareholders Q4 2013
NameSharesValueWeighting ↓
FIRST NEW YORK SECURITIES LLC /NY 8,049$14,0000.01%
DRW Securities, LLC 100,000$168,0000.01%
BRIDGEWAY CAPITAL MANAGEMENT, LLC 120,000$202,0000.01%
Tower Research Capital LLC (TRC) 14,877$25,0000.00%
Renaissance Technologies 615,182$1,034,0000.00%
HighTower Advisors, LLC 43,000$72,0000.00%
BLACKROCK ADVISORS LLC 5,487$9,0000.00%
UBS AG 175$00.00%
NOMURA HOLDINGS INC 1,200$2,0000.00%
BANK OF AMERICA CORP /DE/ 70,781$119,0000.00%
View complete list of ARCA BIOPHARMA INC shareholders