ARCA BIOPHARMA INC

CUSIP: 00211Y209 Class: COM NEW

HighTower Advisors, LLC's Holding History (CIK: 0001462245)

Note: Option positions (PUT/CALL) are excluded.

Q2 2015
Shares 32,900 Value ($000) $38 Avg Close — Range —
Q1 2015
Shares 10,900 Value ($000) $9 Avg Close — Range —
Q3 2014
Shares 15,600 Value ($000) $19 Avg Close — Range —
Q2 2014
Shares 17,200 Value ($000) $25 Avg Close — Range —
Q1 2014
Shares 35,550 Value ($000) $66 Avg Close — Range —
Q4 2013
Shares 43,000 Value ($000) $72 Avg Close — Range —
Q3 2013
Shares 27,500 Value ($000) $44 Avg Close — Range —