SYNTROLEUM CORP

CUSIP: 871630208 Class: COM

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

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

Q4 2013
Shares 4,766 Value ($000) $16 Avg Close — Range —
Q3 2013
Shares 397 Value ($000) $2 Avg Close — Range —
Q2 2013
Shares 384 Value ($000) $3 Avg Close — Range —