INTERPHASE CORP

CUSIP: 460593106 Class: COM

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

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

Q1 2015
Shares 400 Value ($000) $1 Avg Close — Range —
Q4 2014
Shares 1,929 Value ($000) $4 Avg Close — Range —
Q3 2014
Shares 299 Value ($000) $1 Avg Close — Range —
Q2 2014
Shares 400 Value ($000) $2 Avg Close — Range —
Q4 2013
Shares 800 Value ($000) $3 Avg Close — Range —
Q3 2013
Shares 131 Value ($000) $1 Avg Close — Range —
Q2 2013
Shares 1,951 Value ($000) $5 Avg Close — Range —