GREAT NORTHN IRON ORE PPTYS

CUSIP: 391064102 Class: COM

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

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

Q1 2015
Shares 200 Value ($000) $2 Avg Close — Range —
Q3 2014
Shares 68 Value ($000) $1 Avg Close — Range —
Q2 2014
Shares 289 Value ($000) $6 Avg Close — Range —
Q1 2014
Shares 151 Value ($000) $3 Avg Close — Range —
Q4 2013
Shares 2,117 Value ($000) $144 Avg Close — Range —
Q3 2013
Shares 400 Value ($000) $28 Avg Close — Range —
Q2 2013
Shares 251 Value ($000) $17 Avg Close — Range —