ARCA BIOPHARMA INC

CUSIP: 00211Y407 Class: COM PAR$.001

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q3 2016
Shares 517 Value ($000) $1 Avg Close — Range —
Q2 2016
Shares 220 Value ($000) $1 Avg Close — Range —
Q1 2016
Shares 928 Value ($000) $3 Avg Close — Range —
Q4 2015
Shares 119 Value ($000) $1 Avg Close — Range —
Q3 2015
Shares 8,448 Value ($000) $42 Avg Close — Range —