CATALYST BIOSCIENCES INC

CUSIP: 14888D109 Class: COM

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

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

Q2 2016
Shares 469 Value ($000) $1 Avg Close — Range —
Q1 2016
Shares 55 Value ($000) $0 Avg Close — Range —
Q4 2015
Shares 526 Value ($000) $2 Avg Close — Range —
Q3 2015
Shares 2,055 Value ($000) $9 Avg Close — Range —